./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3093378702 <...> Warning: Permanently added '10.128.0.91' (ED25519) to the list of known hosts. execve("./syz-executor3093378702", ["./syz-executor3093378702"], 0x7ffecb798ee0 /* 10 vars */) = 0 brk(NULL) = 0x5555693e0000 brk(0x5555693e0e00) = 0x5555693e0e00 arch_prctl(ARCH_SET_FS, 0x5555693e0480) = 0 set_tid_address(0x5555693e0750) = 5842 set_robust_list(0x5555693e0760, 24) = 0 rseq(0x5555693e0da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3093378702", 4096) = 28 getrandom("\xf6\x28\x58\x26\xf8\x97\x49\x01", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555693e0e00 brk(0x555569401e00) = 0x555569401e00 brk(0x555569402000) = 0x555569402000 mprotect(0x7ff7dbd68000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7ff7dbca2d60, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7ff7dbca2d60, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached , child_tidptr=0x5555693e0750) = 5843 [pid 5843] set_robust_list(0x5555693e0760, 24) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ./strace-static-x86_64: Process 5844 attached [pid 5842] <... clone resumed>, child_tidptr=0x5555693e0750) = 5844 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] set_robust_list(0x5555693e0760, 24) = 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5845 attached [pid 5843] close(3 [pid 5844] <... openat resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x5555693e0750) = 5845 [pid 5845] set_robust_list(0x5555693e0760, 24 [pid 5843] <... close resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... set_robust_list resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5847 attached [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5848 attached [pid 5844] close(3 [pid 5847] set_robust_list(0x5555693e0760, 24 [pid 5845] <... openat resumed>) = 3 [pid 5844] <... close resumed>) = 0 [pid 5847] <... set_robust_list resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x5555693e0750) = 5847 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5845] ioctl(3, LOOP_CLR_FD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached [pid 5848] set_robust_list(0x5555693e0760, 24 [pid 5849] set_robust_list(0x5555693e0760, 24 [pid 5848] <... set_robust_list resumed>) = 0 [pid 5845] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5850 attached [pid 5847] <... openat resumed>) = 3 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 5848 [pid 5845] close(3 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 5849 [pid 5850] set_robust_list(0x5555693e0760, 24 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] ioctl(3, LOOP_CLR_FD [pid 5845] <... close resumed>) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5848] <... prctl resumed>) = 0 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] <... prctl resumed>) = 0 [pid 5848] setpgid(0, 0./strace-static-x86_64: Process 5851 attached [pid 5850] <... set_robust_list resumed>) = 0 [pid 5849] setpgid(0, 0 [pid 5848] <... setpgid resumed>) = 0 [pid 5847] close(3 [pid 5851] set_robust_list(0x5555693e0760, 24 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5849] <... setpgid resumed>) = 0 [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... close resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x5555693e0750) = 5850 [pid 5851] <... set_robust_list resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5852 attached ) = 0 [pid 5850] <... openat resumed>) = 3 [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5848] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 5851 [pid 5852] set_robust_list(0x5555693e0760, 24) = 0 [pid 5851] setpgid(0, 0 [pid 5849] <... openat resumed>) = 3 [pid 5848] write(3, "1000", 4 [pid 5851] <... setpgid resumed>) = 0 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 5852 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5849] write(3, "1000", 4 [pid 5848] <... write resumed>) = 4 [pid 5852] <... prctl resumed>) = 0 [pid 5849] <... write resumed>) = 4 [pid 5848] close(3 [pid 5852] setpgid(0, 0 [pid 5851] <... openat resumed>) = 3 [pid 5850] close(3 [pid 5852] <... setpgid resumed>) = 0 [pid 5849] close(3 [pid 5848] <... close resumed>) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5851] write(3, "1000", 4 [pid 5850] <... close resumed>) = 0 executing program [pid 5849] <... close resumed>) = 0 [pid 5848] write(1, "executing program\n", 18executing program [pid 5852] <... openat resumed>) = 3 [pid 5851] <... write resumed>) = 4 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] write(1, "executing program\n", 18 [pid 5848] <... write resumed>) = 18 ./strace-static-x86_64: Process 5853 attached [pid 5852] write(3, "1000", 4 [pid 5851] close(3 [pid 5849] <... write resumed>) = 18 [pid 5848] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 5853] set_robust_list(0x5555693e0760, 24 [pid 5852] <... write resumed>) = 4 [pid 5851] <... close resumed>) = 0 [pid 5849] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] <... futex resumed>) = 0 [pid 5853] <... set_robust_list resumed>) = 0 [pid 5852] close(3 [pid 5849] <... futex resumed>) = 0 [pid 5848] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5852] <... close resumed>) = 0 [pid 5849] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5848] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5852] write(1, "executing program\n", 18 [pid 5849] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5848] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5852] <... write resumed>) = 18 [pid 5849] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5852] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5852] <... futex resumed>) = 0 [pid 5852] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5851] write(1, "executing program\n", 18executing program [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 5853 [pid 5849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5848] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5852] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5851] <... write resumed>) = 18 [pid 5849] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5848] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5853] <... prctl resumed>) = 0 [pid 5852] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5851] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5853] setpgid(0, 0 [pid 5852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5851] <... futex resumed>) = 0 [pid 5849] <... mprotect resumed>) = 0 [pid 5848] <... mprotect resumed>) = 0 [pid 5853] <... setpgid resumed>) = 0 [pid 5852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5851] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5852] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5851] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5848] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5851] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5849] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5852] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5853] <... openat resumed>) = 3 [pid 5852] <... mprotect resumed>) = 0 [pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5853] write(3, "1000", 4 [pid 5852] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5851] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5849] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 5854 attached [pid 5853] <... write resumed>) = 4 [pid 5852] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5851] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5849] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5854] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5853] close(3 [pid 5852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5851] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 5856 attached ./strace-static-x86_64: Process 5855 attached [pid 5854] <... rseq resumed>) = 0 [pid 5853] <... close resumed>) = 0 [pid 5851] <... mprotect resumed>) = 0 [pid 5848] <... clone3 resumed> => {parent_tid=[5854]}, 88) = 5854 [pid 5855] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5851] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5855] <... rseq resumed>) = 0 [pid 5851] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5855] set_robust_list(0x7ff7dbc929a0, 24 [pid 5851] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 5857 attached [pid 5855] <... set_robust_list resumed>) = 0 [pid 5857] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5855] rt_sigprocmask(SIG_SETMASK, [], [pid 5857] <... rseq resumed>) = 0 [pid 5855] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5857] set_robust_list(0x7ff7dbc929a0, 24 [pid 5855] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] <... clone3 resumed> => {parent_tid=[5857]}, 88) = 5857 [pid 5857] <... set_robust_list resumed>) = 0 [pid 5856] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5854] set_robust_list(0x7ff7dbc929a0, 24 [pid 5853] write(1, "executing program\n", 18 [pid 5852] <... clone3 resumed> => {parent_tid=[5856]}, 88) = 5856 [pid 5849] <... clone3 resumed> => {parent_tid=[5855]}, 88) = 5855 [pid 5848] rt_sigprocmask(SIG_SETMASK, [], [pid 5857] rt_sigprocmask(SIG_SETMASK, [], [pid 5851] rt_sigprocmask(SIG_SETMASK, [], [pid 5857] <... rt_sigprocmask resumed>NULL, 8) = 0 executing program [pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5857] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5856] <... rseq resumed>) = 0 [pid 5854] <... set_robust_list resumed>) = 0 [pid 5853] <... write resumed>) = 18 [pid 5852] rt_sigprocmask(SIG_SETMASK, [], [pid 5851] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5856] set_robust_list(0x7ff7dbc929a0, 24 [pid 5854] rt_sigprocmask(SIG_SETMASK, [], [pid 5853] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5851] <... futex resumed>) = 0 [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5857] memfd_create("syzkaller", 0 [pid 5856] <... set_robust_list resumed>) = 0 [pid 5854] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5853] <... futex resumed>) = 0 [pid 5852] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5849] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] <... futex resumed>) = 0 [pid 5856] rt_sigprocmask(SIG_SETMASK, [], [pid 5857] <... memfd_create resumed>) = 3 [pid 5856] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5855] <... futex resumed>) = 0 [pid 5854] memfd_create("syzkaller", 0 [pid 5853] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5852] <... futex resumed>) = 0 [pid 5849] <... futex resumed>) = 1 [pid 5848] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5856] memfd_create("syzkaller", 0 [pid 5855] memfd_create("syzkaller", 0 [pid 5854] <... memfd_create resumed>) = 3 [pid 5853] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5852] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5849] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5857] <... mmap resumed>) = 0x7ff7d3800000 [pid 5856] <... memfd_create resumed>) = 3 [pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5853] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5853] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5856] <... mmap resumed>) = 0x7ff7d3800000 [pid 5855] <... memfd_create resumed>) = 3 [pid 5853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5854] <... mmap resumed>) = 0x7ff7d3800000 [pid 5855] <... mmap resumed>) = 0x7ff7d3800000 [pid 5853] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5853] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5853] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5853] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[5859]}, 88) = 5859 [pid 5853] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5853] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5859 attached ) = 0 [pid 5859] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5853] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5859] <... rseq resumed>) = 0 [pid 5859] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 5859] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5859] memfd_create("syzkaller", 0) = 3 [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5856] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5854] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5857] <... write resumed>) = 16777216 [pid 5857] munmap(0x7ff7d3800000, 138412032) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5857] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5857] close(3) = 0 [pid 5857] close(4) = 0 [pid 5857] mkdir("./file1", 0777) = 0 [ 202.721576][ T5857] loop2: detected capacity change from 0 to 32768 [pid 5857] mount("/dev/loop2", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5854] <... write resumed>) = 16777216 [pid 5855] <... write resumed>) = 16777216 [pid 5856] <... write resumed>) = 16777216 [pid 5854] munmap(0x7ff7d3800000, 138412032 [pid 5855] munmap(0x7ff7d3800000, 138412032 [pid 5856] munmap(0x7ff7d3800000, 138412032) = 0 [pid 5855] <... munmap resumed>) = 0 [pid 5855] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5855] ioctl(4, LOOP_SET_FD, 3 [pid 5856] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5854] <... munmap resumed>) = 0 [pid 5854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5856] <... openat resumed>) = 4 [pid 5854] ioctl(4, LOOP_SET_FD, 3 [pid 5856] ioctl(4, LOOP_SET_FD, 3 [pid 5855] <... ioctl resumed>) = 0 [pid 5856] <... ioctl resumed>) = 0 [pid 5854] <... ioctl resumed>) = 0 [pid 5856] close(3) = 0 [pid 5854] close(3 [pid 5856] close(4 [pid 5854] <... close resumed>) = 0 [pid 5856] <... close resumed>) = 0 [pid 5855] close(3) = 0 [pid 5855] close(4) = 0 [pid 5855] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5855] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5856] mkdir("./file1", 0777 [pid 5854] close(4 [pid 5856] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5854] <... close resumed>) = 0 [pid 5856] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5854] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 202.920810][ T5857] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 202.931072][ T5855] loop1: detected capacity change from 0 to 32768 [ 202.939457][ T5857] bcachefs (loop2): initializing new filesystem [ 202.952515][ T5854] loop0: detected capacity change from 0 to 32768 [ 202.959773][ T5856] loop3: detected capacity change from 0 to 32768 [pid 5854] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5859] <... write resumed>) = 16777216 [pid 5859] munmap(0x7ff7d3800000, 138412032) = 0 [ 202.979990][ T5857] bcachefs (loop2): going read-write [ 202.998395][ T5857] bcachefs (loop2): marking superblocks [pid 5859] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 203.044408][ T5857] bcachefs (loop2): initializing freespace [ 203.054479][ T5857] bcachefs (loop2): done initializing freespace [ 203.077012][ T5855] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 5859] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5859] close(3) = 0 [pid 5859] close(4) = 0 [pid 5859] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 203.094363][ T5857] bcachefs (loop2): reading snapshots table [ 203.094847][ T5859] loop4: detected capacity change from 0 to 32768 [ 203.101381][ T5855] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 203.125109][ T5857] bcachefs (loop2): reading snapshots done [pid 5859] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5857] <... mount resumed>) = 0 [ 203.158203][ T5857] bcachefs (loop2): done starting filesystem [ 203.158570][ T5854] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 203.175493][ T5854] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5857] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5857] chdir("./file1") = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5857] ioctl(4, LOOP_CLR_FD) = 0 [pid 5857] close(4) = 0 [pid 5857] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5857] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] <... futex resumed>) = 0 [ 203.215708][ T5856] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 203.226889][ T5856] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5851] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5857] <... futex resumed>) = 0 [pid 5851] <... futex resumed>) = 1 [pid 5857] creat("./bus", 000 [pid 5851] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5857] <... creat resumed>) = 4 [pid 5857] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] <... futex resumed>) = 0 [pid 5857] <... futex resumed>) = 1 [pid 5851] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5857] write(4, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 5851] <... futex resumed>) = 0 [ 203.306779][ T5859] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 203.323682][ T5854] bcachefs: bch2_fs_get_tree() error: EINVAL [ 203.345985][ T5859] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5851] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5854] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5854] ioctl(3, LOOP_CLR_FD) = 0 [pid 5851] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5854] close(3 [pid 5851] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5851] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 5851] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5851] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5851] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 5899 attached [pid 5899] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5851] <... clone3 resumed> => {parent_tid=[5899]}, 88) = 5899 [pid 5899] <... rseq resumed>) = 0 [pid 5851] rt_sigprocmask(SIG_SETMASK, [], [pid 5899] set_robust_list(0x7ff7dbc719a0, 24 [pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5899] <... set_robust_list resumed>) = 0 [ 203.360345][ T5855] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 5899] rt_sigprocmask(SIG_SETMASK, [], [pid 5855] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5851] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5851] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5899] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5855] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5899] memfd_create("syzkaller", 0 [pid 5855] <... openat resumed>) = 3 [pid 5899] <... memfd_create resumed>) = 5 [pid 5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5855] ioctl(3, LOOP_CLR_FD [pid 5899] <... mmap resumed>) = 0x7ff7d3800000 [pid 5855] <... ioctl resumed>) = 0 [pid 5855] close(3 [pid 5856] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5856] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5856] ioctl(3, LOOP_CLR_FD) = 0 [ 203.535456][ T5856] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 5856] close(3 [pid 5859] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5859] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5859] ioctl(3, LOOP_CLR_FD) = 0 [ 203.638245][ T5859] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 5859] close(3 [pid 5854] <... close resumed>) = 0 [pid 5854] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5854] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5855] <... close resumed>) = 0 [pid 5854] <... futex resumed>) = 0 [pid 5855] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5854] creat("./bus", 000 [pid 5855] <... futex resumed>) = 1 [pid 5855] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5854] <... creat resumed>) = 3 [pid 5849] <... futex resumed>) = 0 [pid 5849] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5855] <... futex resumed>) = 0 [pid 5849] <... futex resumed>) = 1 [pid 5855] creat("./bus", 000 [pid 5849] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5854] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5855] <... creat resumed>) = 3 [pid 5854] <... futex resumed>) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5855] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5855] <... futex resumed>) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5855] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5854] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 5849] <... futex resumed>) = 0 [pid 5849] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5855] <... futex resumed>) = 0 [pid 5849] <... futex resumed>) = 1 [pid 5855] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 5849] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5848] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5848] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5848] <... futex resumed>) = 0 [pid 5849] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5849] <... futex resumed>) = 0 [pid 5849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5848] <... mmap resumed>) = 0x7ff7dbc51000 [pid 5849] <... mmap resumed>) = 0x7ff7dbc51000 [pid 5848] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 5849] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 5856] <... close resumed>) = 0 [pid 5849] <... mprotect resumed>) = 0 [pid 5848] <... mprotect resumed>) = 0 [pid 5849] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5848] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5849] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5848] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5849] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 5848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 5901 attached ./strace-static-x86_64: Process 5900 attached [pid 5900] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5848] <... clone3 resumed> => {parent_tid=[5901]}, 88) = 5901 [pid 5901] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5900] <... rseq resumed>) = 0 [pid 5856] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... clone3 resumed> => {parent_tid=[5900]}, 88) = 5900 [pid 5848] rt_sigprocmask(SIG_SETMASK, [], [pid 5900] set_robust_list(0x7ff7dbc719a0, 24 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5901] <... rseq resumed>) = 0 [pid 5856] <... futex resumed>) = 1 [pid 5852] <... futex resumed>) = 0 [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] set_robust_list(0x7ff7dbc719a0, 24 [pid 5856] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5852] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] <... futex resumed>) = 0 [pid 5900] <... set_robust_list resumed>) = 0 [pid 5848] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5900] rt_sigprocmask(SIG_SETMASK, [], [pid 5901] <... set_robust_list resumed>) = 0 [pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] rt_sigprocmask(SIG_SETMASK, [], [pid 5856] creat("./bus", 000 [pid 5901] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5901] memfd_create("syzkaller", 0) = 4 [pid 5901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5900] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] <... futex resumed>) = 0 [pid 5852] <... futex resumed>) = 0 [pid 5852] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5849] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5900] memfd_create("syzkaller", 0 [pid 5901] <... mmap resumed>) = 0x7ff7d3800000 [pid 5900] <... memfd_create resumed>) = 4 [pid 5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5899] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5859] <... close resumed>) = 0 [pid 5852] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5852] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5859] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5859] <... futex resumed>) = 1 [pid 5853] <... futex resumed>) = 0 [pid 5852] <... mmap resumed>) = 0x7ff7dbc51000 [pid 5859] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5853] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 5859] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5853] <... futex resumed>) = 0 [pid 5853] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5859] creat("./bus", 000 [pid 5852] <... mprotect resumed>) = 0 [pid 5852] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 5902 attached [pid 5853] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5902] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5853] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... clone3 resumed> => {parent_tid=[5902]}, 88) = 5902 [pid 5852] rt_sigprocmask(SIG_SETMASK, [], [pid 5902] <... rseq resumed>) = 0 [pid 5853] <... futex resumed>) = 0 [pid 5852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5902] set_robust_list(0x7ff7dbc719a0, 24 [pid 5853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5852] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... set_robust_list resumed>) = 0 [pid 5853] <... mmap resumed>) = 0x7ff7dbc51000 [pid 5852] <... futex resumed>) = 0 [pid 5902] rt_sigprocmask(SIG_SETMASK, [], [pid 5853] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 5852] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5902] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5853] <... mprotect resumed>) = 0 [pid 5902] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 5853] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5902] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5902] <... futex resumed>) = 1 [pid 5853] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 5852] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5903 attached [pid 5902] memfd_create("syzkaller", 0 [pid 5852] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... memfd_create resumed>) = 4 [pid 5853] <... clone3 resumed> => {parent_tid=[5903]}, 88) = 5903 [pid 5852] <... futex resumed>) = 0 [pid 5903] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5853] rt_sigprocmask(SIG_SETMASK, [], [pid 5852] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5903] <... rseq resumed>) = 0 [pid 5853] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5903] set_robust_list(0x7ff7dbc719a0, 24 [pid 5902] <... mmap resumed>) = 0x7ff7d3800000 [pid 5853] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5903] <... set_robust_list resumed>) = 0 [pid 5903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5903] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 5903] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5903] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5853] <... futex resumed>) = 0 [pid 5853] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5853] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5903] <... futex resumed>) = 0 [pid 5853] <... futex resumed>) = 1 [pid 5903] memfd_create("syzkaller", 0 [pid 5853] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5903] <... memfd_create resumed>) = 4 [pid 5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5899] <... write resumed>) = 16777216 [pid 5899] munmap(0x7ff7d3800000, 138412032) = 0 [pid 5899] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5900] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5901] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5899] <... openat resumed>) = 6 [pid 5899] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5899] ioctl(6, LOOP_CLR_FD) = 0 [pid 5902] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5899] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy) [pid 5899] close(6) = 0 [pid 5899] close(5 [pid 5903] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5854] <... write resumed>) = 16776704 [pid 5854] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... close resumed>) = 0 [pid 5854] <... futex resumed>) = 0 [pid 5854] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5899] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5851] <... futex resumed>) = 0 [pid 5899] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5902] <... write resumed>) = 16777216 [pid 5902] munmap(0x7ff7d3800000, 138412032) = 0 [pid 5901] <... write resumed>) = 16777216 [pid 5900] <... write resumed>) = 16777216 [pid 5902] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 5901] munmap(0x7ff7d3800000, 138412032 [pid 5900] munmap(0x7ff7d3800000, 138412032 [pid 5902] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 5901] <... munmap resumed>) = 0 [pid 5901] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5900] <... munmap resumed>) = 0 [pid 5901] <... openat resumed>) = 5 [pid 5901] ioctl(5, LOOP_SET_FD, 4 [pid 5900] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 5902] close(4 [pid 5900] ioctl(5, LOOP_SET_FD, 4 [pid 5902] <... close resumed>) = 0 [pid 5902] close(5 [pid 5901] <... ioctl resumed>) = 0 [pid 5901] close(4 [pid 5902] <... close resumed>) = 0 [pid 5901] <... close resumed>) = 0 [pid 5902] mkdir("./bus", 0777 [pid 5901] close(5) = 0 [pid 5900] <... ioctl resumed>) = 0 [pid 5901] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 5901] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5902] <... mkdir resumed>) = -1 EEXIST (File exists) [ 205.109772][ T5902] loop3: detected capacity change from 0 to 32768 [ 205.133849][ T5901] loop0: detected capacity change from 0 to 32768 [ 205.149333][ T5900] loop1: detected capacity change from 0 to 32768 [pid 5903] <... write resumed>) = 16777216 [pid 5902] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5900] close(4) = 0 [pid 5900] close(5) = 0 [pid 5900] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 5900] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5855] <... write resumed>) = 16776704 [pid 5855] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5855] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 205.180650][ T5901] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (5901) [pid 5903] munmap(0x7ff7d3800000, 138412032) = 0 [ 205.225633][ T5902] BTRFS: device /dev/loop3 (7:3) using temp-fsid 08f7d772-1165-4c65-9f15-dedfdbcebf8d [ 205.243681][ T5901] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 5903] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 5903] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 5903] close(4) = 0 [ 205.269958][ T5902] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (5902) [ 205.289845][ T5903] loop4: detected capacity change from 0 to 32768 [ 205.299657][ T5901] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 5903] close(5) = 0 [pid 5903] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 205.371800][ T5900] BTRFS: device /dev/loop1 (7:1) using temp-fsid e92af93b-046d-4f5a-9184-4a5002d68c1e [ 205.397849][ T5902] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 205.405767][ T5900] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (5900) [ 205.421518][ T5902] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 205.444029][ T5903] BTRFS: device /dev/loop4 (7:4) using temp-fsid e0f46dc0-1379-491a-b669-95884094b538 [ 205.455457][ T5900] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 5903] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5851] exit_group(0 [pid 5899] <... futex resumed>) = ? [pid 5851] <... exit_group resumed>) = ? [pid 5899] +++ exited with 0 +++ [ 205.500361][ T5903] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (5903) [ 205.517982][ T5900] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 205.603473][ T5903] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 205.616095][ T5903] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 5857] <... write resumed>) = ? [pid 5859] <... creat resumed>) = 3 [pid 5856] <... creat resumed>) = 3 [pid 5859] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5856] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5859] <... futex resumed>) = 0 [pid 5856] <... futex resumed>) = 0 [pid 5856] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 205.857594][ T5901] BTRFS info (device loop0): rebuilding free space tree [pid 5859] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5857] +++ exited with 0 +++ [pid 5851] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=145 /* 1.45 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5956 attached , child_tidptr=0x5555693e0750) = 5956 [pid 5956] set_robust_list(0x5555693e0760, 24) = 0 [pid 5956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5956] setpgid(0, 0) = 0 [ 205.921620][ T5857] syz-executor309 (5857) used greatest stack depth: 12048 bytes left [pid 5956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5956] write(3, "1000", 4) = 4 [pid 5956] close(3) = 0 [pid 5956] write(1, "executing program\n", 18) = 18 [pid 5956] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5956] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 5956] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 5956] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5956] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5956] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[5960]}, 88) = 5960 [pid 5956] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5956] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5956] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5960 attached [pid 5960] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 5960] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 5960] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5960] memfd_create("syzkaller", 0) = 3 [pid 5960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 205.988762][ T5901] BTRFS info (device loop0): disabling free space tree [ 206.027512][ T5902] BTRFS info (device loop3): rebuilding free space tree [ 206.044656][ T5901] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 206.081076][ T5901] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 206.102651][ T5902] BTRFS info (device loop3): disabling free space tree [ 206.123488][ T5903] BTRFS info (device loop4): rebuilding free space tree [ 206.124333][ T5900] BTRFS info (device loop1): rebuilding free space tree [ 206.146134][ T5902] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 206.173596][ T5901] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 206.186069][ T5903] BTRFS info (device loop4): disabling free space tree [ 206.190311][ T5902] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 206.193333][ T5903] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 206.215645][ T5903] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 206.232252][ T5903] BTRFS info (device loop4): last unmount of filesystem e0f46dc0-1379-491a-b669-95884094b538 [ 206.250178][ T5900] BTRFS info (device loop1): disabling free space tree [ 206.264238][ T5900] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 5903] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5903] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5903] ioctl(4, LOOP_CLR_FD) = 0 [ 206.283937][ T5900] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 206.305262][ T5902] BTRFS info (device loop3): last unmount of filesystem 08f7d772-1165-4c65-9f15-dedfdbcebf8d [pid 5903] close(4 [pid 5901] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5901] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 206.335622][ T5900] BTRFS info (device loop1): last unmount of filesystem e92af93b-046d-4f5a-9184-4a5002d68c1e [pid 5902] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5901] ioctl(4, LOOP_CLR_FD [pid 5902] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5901] <... ioctl resumed>) = 0 [pid 5901] close(4 [pid 5902] <... openat resumed>) = 4 [pid 5902] ioctl(4, LOOP_CLR_FD) = 0 [pid 5902] close(4 [pid 5960] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5900] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5900] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5900] ioctl(4, LOOP_CLR_FD) = 0 [pid 5900] close(4 [pid 5903] <... close resumed>) = 0 [pid 5903] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5853] <... futex resumed>) = 0 [pid 5903] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5853] exit_group(0 [pid 5859] <... futex resumed>) = ? [pid 5903] <... futex resumed>) = ? [pid 5853] <... exit_group resumed>) = ? [pid 5903] +++ exited with 0 +++ [pid 5859] +++ exited with 0 +++ [pid 5853] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=97 /* 0.97 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5973 attached , child_tidptr=0x5555693e0750) = 5973 [pid 5973] set_robust_list(0x5555693e0760, 24) = 0 [pid 5973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5973] setpgid(0, 0) = 0 [pid 5973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5973] write(3, "1000", 4) = 4 [pid 5973] close(3) = 0 [pid 5973] write(1, "executing program\n", 18executing program ) = 18 [pid 5973] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5973] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 5973] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 5973] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5973] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5973] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 5974 attached => {parent_tid=[5974]}, 88) = 5974 [pid 5974] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5973] rt_sigprocmask(SIG_SETMASK, [], [pid 5974] <... rseq resumed>) = 0 [pid 5973] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5974] set_robust_list(0x7ff7dbc929a0, 24 [pid 5973] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5974] <... set_robust_list resumed>) = 0 [pid 5973] <... futex resumed>) = 0 [pid 5974] rt_sigprocmask(SIG_SETMASK, [], [pid 5973] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5974] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5974] memfd_create("syzkaller", 0) = 3 [pid 5974] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5902] <... close resumed>) = 0 [pid 5902] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5852] <... futex resumed>) = 0 [pid 5852] exit_group(0) = ? [pid 5856] <... futex resumed>) = ? [pid 5856] +++ exited with 0 +++ [pid 5901] <... close resumed>) = 0 [pid 5901] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] +++ exited with 0 +++ [pid 5852] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=93 /* 0.93 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5901] <... futex resumed>) = 1 [pid 5900] <... close resumed>) = 0 [pid 5848] <... futex resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 5901] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5900] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] exit_group(0 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 5849] <... futex resumed>) = 0 [pid 5900] <... futex resumed>) = 1 [pid 5901] <... futex resumed>) = ? [pid 5900] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5854] <... futex resumed>) = ? [pid 5849] exit_group(0 [pid 5848] <... exit_group resumed>) = ? [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5901] +++ exited with 0 +++ [pid 5854] +++ exited with 0 +++ [pid 5847] close(3) = 0 [pid 5855] <... futex resumed>) = ? [pid 5900] <... futex resumed>) = ? [pid 5849] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5855] +++ exited with 0 +++ [pid 5900] +++ exited with 0 +++ ./strace-static-x86_64: Process 5975 attached [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 5975 [pid 5975] set_robust_list(0x5555693e0760, 24) = 0 [pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5975] setpgid(0, 0) = 0 [pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5848] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5848, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=139 /* 1.39 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 5975] <... openat resumed>) = 3 [pid 5843] <... restart_syscall resumed>) = 0 [pid 5975] write(3, "1000", 4 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 5976 ./strace-static-x86_64: Process 5976 attached [pid 5976] set_robust_list(0x5555693e0760, 24) = 0 [pid 5976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5975] <... write resumed>) = 4 [pid 5976] <... prctl resumed>) = 0 [pid 5976] setpgid(0, 0 [pid 5975] close(3 [pid 5976] <... setpgid resumed>) = 0 [pid 5976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5975] <... close resumed>) = 0 executing program [pid 5849] +++ exited with 0 +++ [pid 5975] write(1, "executing program\n", 18) = 18 [pid 5975] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=95 /* 0.95 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5975] <... futex resumed>) = 0 [pid 5975] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5844] <... restart_syscall resumed>) = 0 [pid 5975] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5976] <... openat resumed>) = 3 [pid 5975] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5976] write(3, "1000", 4 [pid 5975] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5844] <... openat resumed>) = 3 [pid 5976] <... write resumed>) = 4 [pid 5975] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5976] close(3 [pid 5975] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5976] <... close resumed>) = 0 executing program [pid 5975] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5844] close(3 [pid 5976] write(1, "executing program\n", 18 [pid 5975] <... mprotect resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5976] <... write resumed>) = 18 [pid 5975] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 5977 ./strace-static-x86_64: Process 5977 attached [pid 5976] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] set_robust_list(0x5555693e0760, 24 [pid 5976] <... futex resumed>) = 0 [pid 5977] <... set_robust_list resumed>) = 0 [pid 5976] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5975] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5977] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5976] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5976] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5975] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5977] <... prctl resumed>) = 0 [pid 5976] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5978 attached [pid 5977] setpgid(0, 0 [pid 5975] <... clone3 resumed> => {parent_tid=[5978]}, 88) = 5978 [pid 5976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5975] rt_sigprocmask(SIG_SETMASK, [], [pid 5976] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5975] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5976] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5975] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 executing program [pid 5978] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5977] <... setpgid resumed>) = 0 [pid 5976] <... mprotect resumed>) = 0 [pid 5975] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5978] <... rseq resumed>) = 0 [pid 5977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5976] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5978] set_robust_list(0x7ff7dbc929a0, 24 [pid 5977] <... openat resumed>) = 3 [pid 5976] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5978] <... set_robust_list resumed>) = 0 [pid 5977] write(3, "1000", 4 [pid 5976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 5979 attached [pid 5977] <... write resumed>) = 4 [pid 5977] close(3 [pid 5976] <... clone3 resumed> => {parent_tid=[5979]}, 88) = 5979 [pid 5977] <... close resumed>) = 0 [pid 5976] rt_sigprocmask(SIG_SETMASK, [], [pid 5978] rt_sigprocmask(SIG_SETMASK, [], [pid 5977] write(1, "executing program\n", 18 [pid 5976] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5979] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5978] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5977] <... write resumed>) = 18 [pid 5979] <... rseq resumed>) = 0 [pid 5978] memfd_create("syzkaller", 0 [pid 5977] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] set_robust_list(0x7ff7dbc929a0, 24 [pid 5978] <... memfd_create resumed>) = 3 [pid 5977] <... futex resumed>) = 0 [pid 5976] <... futex resumed>) = 0 [pid 5979] <... set_robust_list resumed>) = 0 [pid 5978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5977] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5976] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5979] rt_sigprocmask(SIG_SETMASK, [], [pid 5978] <... mmap resumed>) = 0x7ff7d3800000 [pid 5977] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5979] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5977] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5979] memfd_create("syzkaller", 0 [pid 5977] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5979] <... memfd_create resumed>) = 3 [pid 5977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 5977] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5977] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5979] <... mmap resumed>) = 0x7ff7d3800000 [pid 5977] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5960] <... write resumed>) = 16777216 [pid 5960] munmap(0x7ff7d3800000, 138412032./strace-static-x86_64: Process 5980 attached [pid 5977] <... clone3 resumed> => {parent_tid=[5980]}, 88) = 5980 [pid 5960] <... munmap resumed>) = 0 [pid 5977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5977] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5980] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 5977] <... futex resumed>) = 0 [pid 5980] <... rseq resumed>) = 0 [pid 5977] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5980] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 5980] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5980] memfd_create("syzkaller", 0) = 3 [pid 5980] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5960] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5960] ioctl(4, LOOP_CLR_FD) = 0 [pid 5960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5960] close(4) = 0 [pid 5960] close(3 [pid 5980] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5960] <... close resumed>) = 0 [pid 5960] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5960] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5956] <... futex resumed>) = 0 [pid 5956] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5960] <... futex resumed>) = 0 [pid 5956] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5960] creat("./bus", 000) = 3 [pid 5960] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5960] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5956] <... futex resumed>) = 0 [pid 5956] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] <... futex resumed>) = 0 [pid 5956] <... futex resumed>) = 1 [pid 5960] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 5956] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5956] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 5956] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5956] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5956] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 5983 attached [pid 5983] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5956] <... clone3 resumed> => {parent_tid=[5983]}, 88) = 5983 [pid 5983] <... rseq resumed>) = 0 [pid 5956] rt_sigprocmask(SIG_SETMASK, [], [pid 5983] set_robust_list(0x7ff7dbc719a0, 24 [pid 5956] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5983] <... set_robust_list resumed>) = 0 [pid 5983] rt_sigprocmask(SIG_SETMASK, [], [pid 5956] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5956] <... futex resumed>) = 0 [pid 5956] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5983] memfd_create("syzkaller", 0) = 4 [pid 5983] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5978] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5979] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5983] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5974] <... write resumed>) = 16777216 [pid 5974] munmap(0x7ff7d3800000, 138412032) = 0 [pid 5980] <... write resumed>) = 16777216 [pid 5980] munmap(0x7ff7d3800000, 138412032 [pid 5974] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5974] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5974] close(3) = 0 [pid 5974] close(4 [pid 5980] <... munmap resumed>) = 0 [pid 5980] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 208.040998][ T5974] loop4: detected capacity change from 0 to 32768 [pid 5980] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5974] <... close resumed>) = 0 [pid 5974] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5980] close(3 [pid 5974] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5980] <... close resumed>) = 0 [pid 5980] close(4) = 0 [pid 5980] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 208.089420][ T5980] loop1: detected capacity change from 0 to 32768 [pid 5980] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5978] <... write resumed>) = 16777216 [pid 5978] munmap(0x7ff7d3800000, 138412032 [pid 5983] <... write resumed>) = 16777216 [pid 5983] munmap(0x7ff7d3800000, 138412032 [pid 5978] <... munmap resumed>) = 0 [pid 5978] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 208.292729][ T5974] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 208.323659][ T5978] loop3: detected capacity change from 0 to 32768 [pid 5978] ioctl(4, LOOP_SET_FD, 3 [pid 5983] <... munmap resumed>) = 0 [pid 5979] <... write resumed>) = 16777216 [pid 5978] <... ioctl resumed>) = 0 [pid 5983] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5979] munmap(0x7ff7d3800000, 138412032 [pid 5978] close(3) = 0 [pid 5983] <... openat resumed>) = 5 [pid 5978] close(4 [pid 5983] ioctl(5, LOOP_SET_FD, 4 [pid 5979] <... munmap resumed>) = 0 [pid 5978] <... close resumed>) = 0 [pid 5983] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5978] mkdir("./file1", 0777 [pid 5983] ioctl(5, LOOP_CLR_FD [pid 5978] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5978] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5983] <... ioctl resumed>) = 0 [ 208.339284][ T5974] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5983] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5983] close(5) = 0 [pid 5979] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5983] close(4 [pid 5979] <... openat resumed>) = 4 [ 208.382849][ T5980] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 208.421504][ T5979] loop0: detected capacity change from 0 to 32768 [pid 5979] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5960] <... write resumed>) = 16776704 [pid 5979] close(3) = 0 [pid 5979] close(4) = 0 [pid 5979] mkdir("./file1", 0777 [pid 5960] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5960] <... futex resumed>) = 0 [pid 5979] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 208.436166][ T5980] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5960] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5974] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5974] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5974] ioctl(3, LOOP_CLR_FD) = 0 [ 208.514046][ T5974] bcachefs: bch2_fs_get_tree() error: EINVAL [ 208.563464][ T5978] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 5974] close(3 [pid 5980] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5980] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5980] ioctl(3, LOOP_CLR_FD) = 0 [pid 5983] <... close resumed>) = 0 [ 208.612208][ T5980] bcachefs: bch2_fs_get_tree() error: EINVAL [ 208.640120][ T5978] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5980] close(3 [pid 5983] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 208.655376][ T5979] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 5983] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5956] <... futex resumed>) = 0 [pid 5956] exit_group(0) = ? [pid 5983] <... futex resumed>) = ? [pid 5983] +++ exited with 0 +++ [pid 5960] <... futex resumed>) = ? [pid 5978] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5978] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5978] ioctl(3, LOOP_CLR_FD [pid 5974] <... close resumed>) = 0 [pid 5978] <... ioctl resumed>) = 0 [pid 5978] close(3 [pid 5974] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5973] <... futex resumed>) = 0 [pid 5973] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 208.747943][ T5979] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 208.780107][ T5978] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 5973] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5974] <... futex resumed>) = 0 [pid 5974] creat("./bus", 000 [pid 5973] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5973] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 5973] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5973] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5973] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6013 attached [pid 6013] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6013] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 5960] +++ exited with 0 +++ [pid 5956] +++ exited with 0 +++ [pid 6013] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6013] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5973] <... clone3 resumed> => {parent_tid=[6013]}, 88) = 6013 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5956, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=105 /* 1.05 s */} --- [pid 5973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5973] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6013] <... futex resumed>) = 0 [pid 5973] <... futex resumed>) = 1 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6013] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 5973] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6013] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6013] <... futex resumed>) = 1 [pid 5973] <... futex resumed>) = 0 [pid 5845] <... openat resumed>) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 6013] memfd_create("syzkaller", 0 [pid 5973] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] close(3 [pid 6013] <... memfd_create resumed>) = 4 [pid 5973] <... futex resumed>) = 0 [pid 5845] <... close resumed>) = 0 [pid 6013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5973] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6013] <... mmap resumed>) = 0x7ff7d3800000 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6014 ./strace-static-x86_64: Process 6014 attached [pid 6014] set_robust_list(0x5555693e0760, 24) = 0 [pid 6014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6014] setpgid(0, 0) = 0 [pid 6014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6014] write(3, "1000", 4) = 4 [pid 6014] close(3) = 0 executing program [pid 6014] write(1, "executing program\n", 18) = 18 [pid 6014] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6014] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6014] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6014] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6014] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6014] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6015]}, 88) = 6015 [pid 6014] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6015 attached NULL, 8) = 0 [pid 6015] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6014] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... rseq resumed>) = 0 [pid 6014] <... futex resumed>) = 0 [pid 6015] set_robust_list(0x7ff7dbc929a0, 24 [pid 6014] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6015] <... set_robust_list resumed>) = 0 [pid 6015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6015] memfd_create("syzkaller", 0) = 3 [pid 6015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 209.104610][ T5979] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 5979] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5979] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5979] ioctl(3, LOOP_CLR_FD) = 0 [pid 5979] close(3 [pid 5980] <... close resumed>) = 0 [pid 5980] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5977] <... futex resumed>) = 0 [pid 5977] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5980] creat("./bus", 000 [pid 5977] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6015] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5977] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5977] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 5977] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5978] <... close resumed>) = 0 [pid 5977] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6016 attached [pid 5978] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... clone3 resumed> => {parent_tid=[6016]}, 88) = 6016 [pid 6016] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6016] set_robust_list(0x7ff7dbc719a0, 24 [pid 5978] <... futex resumed>) = 1 [pid 5977] rt_sigprocmask(SIG_SETMASK, [], [pid 6016] <... set_robust_list resumed>) = 0 [pid 5975] <... futex resumed>) = 0 [pid 6016] rt_sigprocmask(SIG_SETMASK, [], [pid 5978] creat("./bus", 000 [pid 5977] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5975] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5975] <... futex resumed>) = 0 [pid 6016] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5975] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5980] <... creat resumed>) = 3 [pid 5978] <... creat resumed>) = 3 [pid 5977] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5974] <... creat resumed>) = 3 [pid 6016] <... futex resumed>) = 0 [pid 5978] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... futex resumed>) = 1 [pid 6016] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 5978] <... futex resumed>) = 1 [pid 5977] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5975] <... futex resumed>) = 0 [pid 6016] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5974] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5975] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5980] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5975] <... futex resumed>) = 0 [pid 5974] <... futex resumed>) = 0 [pid 6016] <... futex resumed>) = 0 [pid 5980] <... futex resumed>) = 0 [pid 5975] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5974] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6016] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5980] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 5977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5977] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5980] <... futex resumed>) = 0 [pid 5977] <... futex resumed>) = 1 [pid 5977] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5980] memfd_create("syzkaller", 0) = 4 [pid 5980] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5975] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5975] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5975] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 5975] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5975] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5975] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6017]}, 88) = 6017 ./strace-static-x86_64: Process 6017 attached [pid 6017] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6017] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 5975] rt_sigprocmask(SIG_SETMASK, [], [pid 6017] rt_sigprocmask(SIG_SETMASK, [], [pid 5975] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6017] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5975] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] memfd_create("syzkaller", 0 [pid 5975] <... futex resumed>) = 0 [pid 6017] <... memfd_create resumed>) = 4 [pid 5975] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6017] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6015] <... write resumed>) = 16777216 [pid 6015] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6015] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6015] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6015] ioctl(4, LOOP_CLR_FD) = 0 [pid 6015] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6015] close(4) = 0 [pid 6015] close(3 [pid 5979] <... close resumed>) = 0 [pid 5979] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5979] creat("./bus", 000 [pid 5976] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5976] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5976] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 5976] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5976] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6018 attached => {parent_tid=[6018]}, 88) = 6018 [pid 6018] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5976] rt_sigprocmask(SIG_SETMASK, [], [pid 6018] <... rseq resumed>) = 0 [pid 5976] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5976] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5976] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6018] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6018] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6018] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6018] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5976] <... futex resumed>) = 0 [pid 6018] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] <... futex resumed>) = 0 [pid 6018] memfd_create("syzkaller", 0 [pid 6013] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5976] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6018] <... memfd_create resumed>) = 4 [pid 6018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6015] <... close resumed>) = 0 [pid 6015] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6015] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] <... futex resumed>) = 0 [pid 6015] creat("./bus", 000 [pid 6014] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6017] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6014] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6014] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6014] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6014] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5980] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6014] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6014] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6019 attached => {parent_tid=[6019]}, 88) = 6019 [pid 6014] rt_sigprocmask(SIG_SETMASK, [], [pid 6019] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6014] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6014] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... rseq resumed>) = 0 [pid 6014] <... futex resumed>) = 0 [pid 6014] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6019] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6019] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6019] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6014] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6019] memfd_create("syzkaller", 0) = 4 [pid 6019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6018] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6019] <... mmap resumed>) = 0x7ff7d3800000 [pid 5978] <... write resumed>) = 16776704 [pid 5978] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5978] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6013] <... write resumed>) = 16777216 [pid 6013] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6013] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 6013] ioctl(5, LOOP_SET_FD, 4 [ 210.834485][ T6013] loop4: detected capacity change from 0 to 32768 [pid 6019] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6017] <... write resumed>) = 16777216 [pid 6017] munmap(0x7ff7d3800000, 138412032 [pid 6013] <... ioctl resumed>) = 0 [pid 5980] <... write resumed>) = 16777216 [pid 6013] close(4 [pid 6017] <... munmap resumed>) = 0 [pid 6017] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 6013] <... close resumed>) = 0 [pid 6017] ioctl(5, LOOP_SET_FD, 4 [pid 6013] close(5) = 0 [pid 6013] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6013] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5980] munmap(0x7ff7d3800000, 138412032 [pid 6017] <... ioctl resumed>) = 0 [pid 6017] close(4) = 0 [pid 6017] close(5) = 0 [pid 6017] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 210.921691][ T6017] loop3: detected capacity change from 0 to 32768 [ 210.933163][ T6013] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6013) [pid 6017] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5980] <... munmap resumed>) = 0 [pid 5980] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [ 211.031134][ T5980] loop1: detected capacity change from 0 to 32768 [ 211.041092][ T6017] BTRFS: device /dev/loop3 (7:3) using temp-fsid 1d2cedd1-b31d-44fd-9790-e6b3bd580a46 [pid 5980] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 5980] close(4) = 0 [pid 5980] close(5) = 0 [pid 5980] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 211.095865][ T6013] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 211.147825][ T6017] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6017) [ 211.169091][ T6013] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 5980] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6018] <... write resumed>) = 16777216 [pid 6018] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6018] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [ 211.249745][ T5980] BTRFS: device /dev/loop1 (7:1) using temp-fsid 3f91ecba-edb7-44b8-8d46-3fcb049f66db [ 211.270142][ T6017] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 211.277799][ T5980] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (5980) [ 211.327375][ T6018] loop0: detected capacity change from 0 to 32768 [ 211.372240][ T6017] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 6018] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6018] close(4) = 0 [pid 6018] close(5) = 0 [pid 6018] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 211.439087][ T6013] BTRFS info (device loop4): rebuilding free space tree [pid 6018] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6015] <... creat resumed>) = 3 [ 211.479518][ T5980] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 211.490810][ T6018] BTRFS: device /dev/loop0 (7:0) using temp-fsid 91cbddb2-d2e3-4652-8795-fd7d94e1286c [ 211.513959][ T6018] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6018) [pid 6015] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 211.566725][ T5980] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 211.600232][ T6013] BTRFS info (device loop4): disabling free space tree [ 211.607256][ T6013] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6015] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5979] <... creat resumed>) = 3 [pid 5979] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5979] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 211.620975][ T6018] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 5850] kill(-5973, SIGKILL [pid 5974] <... futex resumed>) = ? [pid 5973] <... futex resumed>) = ? [pid 5850] <... kill resumed>) = 0 [pid 5974] +++ killed by SIGKILL +++ [pid 5850] kill(5973, SIGKILL) = 0 [pid 6019] <... write resumed>) = 16777216 [pid 6019] munmap(0x7ff7d3800000, 138412032) = 0 [ 211.691254][ T6018] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 211.703429][ T6013] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6019] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6019] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6019] ioctl(5, LOOP_CLR_FD) = 0 [pid 6019] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6019] close(5) = 0 [ 211.744868][ T6013] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6019] close(4 [pid 5847] kill(-5975, SIGKILL [pid 5978] <... futex resumed>) = ? [pid 5847] <... kill resumed>) = 0 [pid 5978] +++ killed by SIGKILL +++ [pid 5847] kill(5975, SIGKILL) = 0 [pid 5975] <... futex resumed>) = ? [pid 5843] kill(-5976, SIGKILL [pid 5979] <... futex resumed>) = ? [pid 5976] <... futex resumed>) = ? [pid 5843] <... kill resumed>) = 0 [pid 5979] +++ killed by SIGKILL +++ [pid 5843] kill(5976, SIGKILL) = 0 [pid 6019] <... close resumed>) = 0 [pid 6019] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6014] exit_group(0 [pid 6015] <... futex resumed>) = ? [pid 6014] <... exit_group resumed>) = ? [pid 5844] kill(-5977, SIGKILL [pid 6015] +++ exited with 0 +++ [pid 5844] <... kill resumed>) = 0 [pid 6016] <... futex resumed>) = ? [pid 5844] kill(5977, SIGKILL [pid 6016] +++ killed by SIGKILL +++ [pid 5844] <... kill resumed>) = 0 [pid 6019] +++ exited with 0 +++ [pid 5977] <... futex resumed>) = ? [pid 6014] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6014, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=62 /* 0.62 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [ 211.859415][ T6017] workqueue: Failed to create a rescuer kthread for wq "btrfs-qgroup-rescan": -EINTR [ 211.880902][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-endio": -EINTR [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6074 attached , child_tidptr=0x5555693e0750) = 6074 [pid 6074] set_robust_list(0x5555693e0760, 24) = 0 [pid 6074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6074] setpgid(0, 0) = 0 [pid 6074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 211.909809][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-endio-meta": -EINTR [ 211.962012][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-rmw": -EINTR [ 211.996145][ T6017] BTRFS error (device loop3): open_ctree failed [pid 6074] write(3, "1000", 4) = 4 [pid 6074] close(3executing program ) = 0 [pid 6074] write(1, "executing program\n", 18) = 18 [pid 6074] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6017] <... mount resumed>) = ? [pid 6074] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6074] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6078]}, 88) = 6078 ./strace-static-x86_64: Process 6078 attached [pid 6074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6074] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6078] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [ 212.011650][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-endio-write": -EINTR [pid 6074] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6078] <... rseq resumed>) = 0 [pid 6078] set_robust_list(0x7ff7dbc929a0, 24 [pid 6017] +++ killed by SIGKILL +++ [pid 5975] +++ killed by SIGKILL +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5975, si_uid=0, si_status=SIGKILL, si_utime=22 /* 0.22 s */, si_stime=115 /* 1.15 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = 0 [pid 5847] close(3 [pid 6078] <... set_robust_list resumed>) = 0 [pid 6078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6078] memfd_create("syzkaller", 0) = 3 [pid 6078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6013] <... mount resumed>) = ? [pid 5980] <... mount resumed>) = ? [pid 5980] +++ killed by SIGKILL +++ [pid 5977] +++ killed by SIGKILL +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5977, si_uid=0, si_status=SIGKILL, si_utime=15 /* 0.15 s */, si_stime=76 /* 0.76 s */} --- [pid 5844] restart_syscall(<... resuming interrupted kill ...>) = 0 [pid 6013] +++ killed by SIGKILL +++ [pid 5973] +++ killed by SIGKILL +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5973, si_uid=0, si_status=SIGKILL, si_utime=11 /* 0.11 s */, si_stime=91 /* 0.91 s */} --- [pid 5850] restart_syscall(<... resuming interrupted kill ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = 0 [ 212.011869][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-compressed-write": -EINTR [ 212.054262][ T5980] BTRFS error (device loop1): open_ctree failed [ 212.075730][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-freespace-write": -EINTR [ 212.075982][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-delayed-meta": -EINTR [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] close(3 [pid 5850] <... openat resumed>) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = 0 [ 212.090921][ T6018] workqueue: Failed to create a rescuer kthread for wq "btrfs-qgroup-rescan": -EINTR [ 212.154889][ T6018] BTRFS error (device loop0): open_ctree failed [pid 5850] close(3 [pid 6018] <... mount resumed>) = ? [pid 6018] +++ killed by SIGKILL +++ [pid 5976] +++ killed by SIGKILL +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5976, si_uid=0, si_status=SIGKILL, si_utime=18 /* 0.18 s */, si_stime=95 /* 0.95 s */} --- [pid 5843] restart_syscall(<... resuming interrupted kill ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6082 ./strace-static-x86_64: Process 6082 attached executing program [pid 6082] set_robust_list(0x5555693e0760, 24) = 0 [pid 6082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6082] setpgid(0, 0) = 0 [pid 6082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6082] write(3, "1000", 4) = 4 [pid 6082] close(3) = 0 [pid 6082] write(1, "executing program\n", 18) = 18 [pid 6082] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6082] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6082] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6083]}, 88) = 6083 [pid 6082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6083 attached [pid 6082] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6082] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6083] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6083] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6083] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6083] memfd_create("syzkaller", 0) = 3 [pid 6083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5847] <... close resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6084 attached , child_tidptr=0x5555693e0750) = 6084 [pid 6084] set_robust_list(0x5555693e0760, 24) = 0 [pid 6084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6084] setpgid(0, 0) = 0 [pid 6084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6084] write(3, "1000", 4) = 4 [pid 6084] close(3) = 0 executing program [pid 6084] write(1, "executing program\n", 18) = 18 [pid 6084] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6084] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6084] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6084] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5844] <... close resumed>) = 0 [pid 6084] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6085 attached [pid 6085] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6085] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6085] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6085] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6084] <... clone3 resumed> => {parent_tid=[6085]}, 88) = 6085 [pid 6084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6084] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6084] <... futex resumed>) = 1 ./strace-static-x86_64: Process 6086 attached [pid 6084] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6085] <... futex resumed>) = 0 [pid 5850] <... close resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 6086 [pid 6086] set_robust_list(0x5555693e0760, 24) = 0 [pid 6086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6085] memfd_create("syzkaller", 0) = 3 [pid 6085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6086] <... prctl resumed>) = 0 [pid 6086] setpgid(0, 0) = 0 [pid 6086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6086] <... openat resumed>) = 3 [pid 6086] write(3, "1000", 4) = 4 [pid 6086] close(3./strace-static-x86_64: Process 6087 attached executing program ) = 0 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 6087 [pid 6087] set_robust_list(0x5555693e0760, 24 [pid 6086] write(1, "executing program\n", 18 [pid 6087] <... set_robust_list resumed>) = 0 [pid 6086] <... write resumed>) = 18 [pid 6086] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6086] <... futex resumed>) = 0 [pid 6086] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6086] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6087] <... prctl resumed>) = 0 [pid 6086] <... mprotect resumed>) = 0 [pid 6087] setpgid(0, 0) = 0 [pid 6087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6087] <... openat resumed>) = 3 [pid 6086] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6087] write(3, "1000", 4 [pid 6086] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6087] <... write resumed>) = 4 [pid 6086] <... clone3 resumed> => {parent_tid=[6088]}, 88) = 6088 [pid 6087] close(3 [pid 6086] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6088 attached NULL, 8) = 0 [pid 6088] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6086] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6088] <... rseq resumed>) = 0 [pid 6086] <... futex resumed>) = 0 [pid 6086] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}executing program [pid 6088] set_robust_list(0x7ff7dbc929a0, 24 [pid 6087] <... close resumed>) = 0 [pid 6087] write(1, "executing program\n", 18) = 18 [pid 6088] <... set_robust_list resumed>) = 0 [pid 6087] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6088] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6088] memfd_create("syzkaller", 0 [pid 6087] <... futex resumed>) = 0 [pid 6088] <... memfd_create resumed>) = 3 [pid 6088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6087] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6087] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6089 attached [pid 6089] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6087] <... clone3 resumed> => {parent_tid=[6089]}, 88) = 6089 [pid 6087] rt_sigprocmask(SIG_SETMASK, [], [pid 6089] <... rseq resumed>) = 0 [pid 6087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6089] set_robust_list(0x7ff7dbc929a0, 24 [pid 6087] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6089] <... set_robust_list resumed>) = 0 [pid 6087] <... futex resumed>) = 0 [pid 6089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6087] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6089] memfd_create("syzkaller", 0) = 3 [pid 6089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6078] <... write resumed>) = 16777216 [pid 6078] munmap(0x7ff7d3800000, 138412032 [pid 6085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6078] <... munmap resumed>) = 0 [pid 6078] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6078] ioctl(4, LOOP_CLR_FD) = 0 [pid 6088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6078] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6078] close(4) = 0 [pid 6078] close(3 [pid 6089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6083] <... write resumed>) = 16777216 [pid 6083] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6083] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6078] <... close resumed>) = 0 [pid 6083] close(3 [pid 6078] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... close resumed>) = 0 [pid 6078] <... futex resumed>) = 1 [pid 6074] <... futex resumed>) = 0 [pid 6083] close(4 [pid 6078] creat("./bus", 000 [pid 6074] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... close resumed>) = 0 [pid 6078] <... creat resumed>) = 3 [pid 6074] <... futex resumed>) = 0 [pid 6083] mkdir("./file1", 0777 [pid 6074] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6078] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6078] <... futex resumed>) = 0 [pid 6074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6078] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6074] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6074] <... futex resumed>) = 0 [pid 6078] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [ 213.272103][ T6083] loop0: detected capacity change from 0 to 32768 [pid 6074] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6074] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6074] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6097]}, 88) = 6097 [pid 6074] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6097 attached NULL, 8) = 0 [pid 6097] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6074] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] set_robust_list(0x7ff7dbc719a0, 24 [pid 6074] <... futex resumed>) = 0 [pid 6097] <... set_robust_list resumed>) = 0 [pid 6074] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6097] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6097] memfd_create("syzkaller", 0) = 4 [pid 6097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 213.394712][ T6083] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6085] <... write resumed>) = 16777216 [pid 6085] munmap(0x7ff7d3800000, 138412032 [pid 6089] <... write resumed>) = 16777216 [ 213.447849][ T6083] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6089] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6085] <... munmap resumed>) = 0 [pid 6085] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6085] ioctl(4, LOOP_SET_FD, 3 [pid 6089] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6089] ioctl(4, LOOP_SET_FD, 3 [pid 6085] <... ioctl resumed>) = 0 [pid 6085] close(3) = 0 [pid 6085] close(4) = 0 [pid 6085] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6085] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6089] <... ioctl resumed>) = 0 [pid 6089] close(3) = 0 [pid 6089] close(4) = 0 [pid 6089] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6089] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6088] <... write resumed>) = 16777216 [ 213.547386][ T6085] loop3: detected capacity change from 0 to 32768 [ 213.567571][ T6089] loop4: detected capacity change from 0 to 32768 [pid 6088] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6088] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6088] close(3) = 0 [pid 6088] close(4) = 0 [pid 6088] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 213.631582][ T6088] loop1: detected capacity change from 0 to 32768 [ 213.681511][ T6089] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 213.706112][ T6089] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 213.714556][ T6085] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 213.723745][ T6085] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6088] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6083] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6083] ioctl(3, LOOP_CLR_FD) = 0 [ 213.735896][ T6083] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6083] close(3 [ 213.843634][ T6088] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 213.920552][ T6088] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6097] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6089] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6089] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 6089] ioctl(3, LOOP_CLR_FD) = 0 [ 213.989395][ T6089] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6089] close(3 [pid 6085] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6085] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6085] ioctl(3, LOOP_CLR_FD) = 0 [ 214.054024][ T6085] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6085] close(3 [pid 6083] <... close resumed>) = 0 [pid 6083] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6083] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] <... futex resumed>) = 0 [pid 6082] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6082] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6083] creat("./bus", 000 [pid 6082] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6082] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6088] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6082] <... futex resumed>) = 0 [pid 6088] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6082] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6088] <... openat resumed>) = 3 [pid 6088] ioctl(3, LOOP_CLR_FD [pid 6082] <... mprotect resumed>) = 0 [pid 6082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6120]}, 88) = 6120 [pid 6082] rt_sigprocmask(SIG_SETMASK, [], [pid 6088] <... ioctl resumed>) = 0 [pid 6082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6082] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6082] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6120 attached [pid 6120] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6088] close(3 [pid 6120] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6120] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [ 214.176482][ T6088] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6120] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6120] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] memfd_create("syzkaller", 0 [pid 6082] <... futex resumed>) = 0 [pid 6120] <... memfd_create resumed>) = 4 [pid 6082] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6097] <... write resumed>) = 16777216 [pid 6097] munmap(0x7ff7d3800000, 138412032 [pid 6089] <... close resumed>) = 0 [pid 6089] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] <... munmap resumed>) = 0 [pid 6097] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6097] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6097] ioctl(5, LOOP_CLR_FD) = 0 [pid 6089] <... futex resumed>) = 1 [pid 6097] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6089] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] close(5) = 0 [pid 6097] close(4 [pid 6087] <... futex resumed>) = 0 [pid 6087] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6089] <... futex resumed>) = 0 [pid 6089] creat("./bus", 000 [pid 6087] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6085] <... close resumed>) = 0 [pid 6085] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6085] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6084] <... futex resumed>) = 0 [pid 6084] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6085] <... futex resumed>) = 0 [pid 6084] <... futex resumed>) = 1 [pid 6085] creat("./bus", 000 [pid 6084] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6087] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 6087] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6087] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6121 attached => {parent_tid=[6121]}, 88) = 6121 [pid 6087] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6087] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6087] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6121] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6121] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6084] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6121] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6084] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6084] <... futex resumed>) = 0 [pid 6121] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6121] <... futex resumed>) = 1 [pid 6087] <... futex resumed>) = 0 [pid 6084] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6087] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6087] <... futex resumed>) = 0 [pid 6084] <... mprotect resumed>) = 0 [pid 6087] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6084] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6121] memfd_create("syzkaller", 0 [pid 6084] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6121] <... memfd_create resumed>) = 4 [pid 6084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6122 attached [pid 6121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6084] <... clone3 resumed> => {parent_tid=[6122]}, 88) = 6122 [pid 6088] <... close resumed>) = 0 [pid 6084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6084] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6084] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6122] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6122] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6122] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6122] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6084] <... futex resumed>) = 0 [pid 6122] memfd_create("syzkaller", 0 [pid 6084] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6084] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6122] <... memfd_create resumed>) = 4 [pid 6122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6088] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6086] <... futex resumed>) = 0 [pid 6088] creat("./bus", 000 [pid 6086] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6086] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6078] <... write resumed>) = 16776704 [pid 6078] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6078] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6086] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6086] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6123 attached [pid 6097] <... close resumed>) = 0 [pid 6086] <... clone3 resumed> => {parent_tid=[6123]}, 88) = 6123 [pid 6086] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6086] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6123] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6097] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... rseq resumed>) = 0 [pid 6097] <... futex resumed>) = 1 [pid 6123] set_robust_list(0x7ff7dbc719a0, 24 [pid 6097] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6123] <... set_robust_list resumed>) = 0 [pid 6123] rt_sigprocmask(SIG_SETMASK, [], [pid 6074] <... futex resumed>) = 0 [pid 6074] exit_group(0 [pid 6123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6097] <... futex resumed>) = ? [pid 6078] <... futex resumed>) = ? [pid 6074] <... exit_group resumed>) = ? [pid 6097] +++ exited with 0 +++ [pid 6123] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6123] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6086] <... futex resumed>) = 0 [pid 6123] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6123] <... futex resumed>) = 0 [pid 6123] memfd_create("syzkaller", 0 [pid 6120] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6123] <... memfd_create resumed>) = 4 [pid 6086] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6078] +++ exited with 0 +++ [pid 6074] +++ exited with 0 +++ [pid 6123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6074, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=106 /* 1.06 s */} --- [pid 6123] <... mmap resumed>) = 0x7ff7d3800000 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6124 ./strace-static-x86_64: Process 6124 attached [pid 6124] set_robust_list(0x5555693e0760, 24) = 0 [pid 6124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6124] setpgid(0, 0) = 0 [pid 6124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6124] write(3, "1000", 4) = 4 [pid 6124] close(3) = 0 [pid 6124] write(1, "executing program\n", 18) = 18 [pid 6124] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6124] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6124] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6125 attached [pid 6125] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6124] <... clone3 resumed> => {parent_tid=[6125]}, 88) = 6125 [pid 6125] set_robust_list(0x7ff7dbc929a0, 24 [pid 6124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6125] <... set_robust_list resumed>) = 0 [pid 6124] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] rt_sigprocmask(SIG_SETMASK, [], [pid 6124] <... futex resumed>) = 0 [pid 6125] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6124] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6125] memfd_create("syzkaller", 0) = 3 [pid 6125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6088] <... creat resumed>) = 3 [pid 6085] <... creat resumed>) = 3 [pid 6083] <... creat resumed>) = 3 [pid 6089] <... creat resumed>) = 3 [pid 6088] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6085] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6089] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6088] <... futex resumed>) = 0 [pid 6085] <... futex resumed>) = 0 [pid 6083] <... futex resumed>) = 0 [pid 6089] <... futex resumed>) = 0 [pid 6088] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6085] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6089] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6122] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6123] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6120] <... write resumed>) = 16777216 [pid 6120] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 6120] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6120] close(4) = 0 [pid 6120] close(5) = 0 [pid 6120] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6120] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 215.198732][ T6120] loop0: detected capacity change from 0 to 32768 [ 215.230696][ T6120] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6120) [ 215.270046][ T6120] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 215.307963][ T6120] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 6125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6121] <... write resumed>) = 16777216 [pid 6121] munmap(0x7ff7d3800000, 138412032 [pid 6122] <... write resumed>) = 16777216 [pid 6122] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6122] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 6121] <... munmap resumed>) = 0 [pid 6121] openat(AT_FDCWD, "/dev/loop4", O_RDWR [ 215.457071][ T6120] BTRFS info (device loop0): rebuilding free space tree [ 215.489875][ T6122] loop3: detected capacity change from 0 to 32768 [ 215.496394][ T6120] BTRFS info (device loop0): disabling free space tree [pid 6122] ioctl(5, LOOP_SET_FD, 4 [pid 6121] <... openat resumed>) = 5 [pid 6121] ioctl(5, LOOP_SET_FD, 4 [pid 6122] <... ioctl resumed>) = 0 [pid 6122] close(4) = 0 [pid 6122] close(5) = 0 [pid 6122] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 215.496457][ T6120] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 215.496485][ T6120] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 215.510126][ T6121] loop4: detected capacity change from 0 to 32768 [pid 6122] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6123] <... write resumed>) = 16777216 [pid 6121] <... ioctl resumed>) = 0 [pid 6121] close(4) = 0 [pid 6121] close(5) = 0 [pid 6121] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6121] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 215.548603][ T6122] BTRFS: device /dev/loop3 (7:3) using temp-fsid 0427c69f-96ee-4715-a47a-3c0201b4d197 [ 215.561537][ T6120] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 215.567881][ T6122] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6122) [pid 6123] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6123] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 6123] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6123] close(4) = 0 [pid 6123] close(5) = 0 [ 215.655991][ T6123] loop1: detected capacity change from 0 to 32768 [ 215.681412][ T6121] BTRFS: device /dev/loop4 (7:4) using temp-fsid 6fffadea-ba09-4395-bef8-297a13012047 [ 215.691977][ T6122] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6123] mkdir("./bus", 0777 [pid 6125] <... write resumed>) = 16777216 [pid 6123] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6125] munmap(0x7ff7d3800000, 138412032 [ 215.705843][ T6121] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6121) [ 215.717875][ T6122] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 6123] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6125] <... munmap resumed>) = 0 [pid 6125] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6125] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 215.760648][ T6123] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6123) [ 215.788670][ T6121] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6120] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6125] ioctl(4, LOOP_CLR_FD) = 0 [pid 6120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6120] ioctl(4, LOOP_CLR_FD) = 0 [pid 6120] close(4 [pid 6125] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6125] close(4) = 0 [ 215.805855][ T6121] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 215.866259][ T6123] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 215.887812][ T6123] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 6125] close(3) = 0 [pid 6125] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6124] <... futex resumed>) = 0 [pid 6124] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6124] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6125] creat("./bus", 000) = 3 [pid 6125] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6124] <... futex resumed>) = 0 [pid 6124] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6124] <... futex resumed>) = 0 [ 216.129160][ T6122] BTRFS info (device loop3): rebuilding free space tree [pid 6124] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] <... close resumed>) = 0 [pid 6120] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6082] exit_group(0) = ? [pid 6083] <... futex resumed>) = ? [pid 6120] +++ exited with 0 +++ [pid 6124] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6124] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6124] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6178 attached => {parent_tid=[6178]}, 88) = 6178 [pid 6124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6124] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6178] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6124] <... futex resumed>) = 0 [pid 6178] <... rseq resumed>) = 0 [pid 6124] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6178] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6178] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6178] memfd_create("syzkaller", 0) = 4 [pid 6178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6083] +++ exited with 0 +++ [pid 6082] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6082, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=95 /* 0.95 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 216.191285][ T6122] BTRFS info (device loop3): disabling free space tree [ 216.225409][ T6122] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6185 ./strace-static-x86_64: Process 6185 attached [pid 6185] set_robust_list(0x5555693e0760, 24) = 0 [pid 6185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6185] setpgid(0, 0) = 0 [pid 6185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6185] write(3, "1000", 4) = 4 [ 216.268108][ T6122] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6185] close(3executing program ) = 0 [pid 6185] write(1, "executing program\n", 18) = 18 [pid 6185] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6185] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6185] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6185] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6185] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6185] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6192 attached => {parent_tid=[6192]}, 88) = 6192 [pid 6185] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6185] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6185] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6192] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6192] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6192] memfd_create("syzkaller", 0) = 3 [ 216.335605][ T6123] BTRFS info (device loop1): rebuilding free space tree [ 216.368964][ T6121] BTRFS info (device loop4): rebuilding free space tree [pid 6192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 216.428905][ T6123] BTRFS info (device loop1): disabling free space tree [ 216.451444][ T6121] BTRFS info (device loop4): disabling free space tree [ 216.462466][ T6123] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 216.487845][ T6121] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 216.497564][ T6121] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 216.497773][ T6123] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6178] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6192] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6178] <... write resumed>) = 16777216 [pid 6125] <... write resumed>) = 16776704 [pid 6178] munmap(0x7ff7d3800000, 138412032 [pid 6125] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6178] <... munmap resumed>) = 0 [pid 6125] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6178] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6178] ioctl(5, LOOP_SET_FD, 4 [pid 6123] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6123] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6123] ioctl(4, LOOP_CLR_FD) = 0 [pid 6178] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6123] close(4 [ 216.789256][ T6123] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 216.789272][ T6121] BTRFS info (device loop4): last unmount of filesystem 6fffadea-ba09-4395-bef8-297a13012047 [ 216.799835][ T6122] BTRFS info (device loop3): last unmount of filesystem 0427c69f-96ee-4715-a47a-3c0201b4d197 [pid 6178] ioctl(5, LOOP_CLR_FD) = 0 [pid 6122] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6121] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6121] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6121] ioctl(4, LOOP_CLR_FD [pid 6178] ioctl(5, LOOP_SET_FD, 4 [pid 6121] <... ioctl resumed>) = 0 [pid 6178] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6122] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6121] close(4 [pid 6178] close(5 [pid 6122] <... openat resumed>) = 4 [pid 6178] <... close resumed>) = 0 [pid 6178] close(4 [pid 6122] ioctl(4, LOOP_CLR_FD) = 0 [pid 6122] close(4 [pid 6192] <... write resumed>) = 16777216 [pid 6123] <... close resumed>) = 0 [pid 6192] munmap(0x7ff7d3800000, 138412032 [pid 6123] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6123] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] <... futex resumed>) = 0 [pid 6086] exit_group(0) = ? [pid 6123] <... futex resumed>) = ? [pid 6123] +++ exited with 0 +++ [pid 6088] <... futex resumed>) = ? [pid 6088] +++ exited with 0 +++ [pid 6086] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6086, si_uid=0, si_status=0, si_utime=26 /* 0.26 s */, si_stime=85 /* 0.85 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6192] <... munmap resumed>) = 0 [pid 6192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6192] ioctl(4, LOOP_SET_FD, 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6193 attached [pid 6193] set_robust_list(0x5555693e0760, 24 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 6193 [pid 6193] <... set_robust_list resumed>) = 0 [pid 6193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6193] setpgid(0, 0) = 0 [pid 6193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6193] write(3, "1000", 4) = 4 [pid 6193] close(3) = 0 [pid 6193] write(1, "executing program\n", 18) = 18 [pid 6193] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6193] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6193] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6193] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6193] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6193] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6192] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 6194 attached [pid 6193] <... clone3 resumed> => {parent_tid=[6194]}, 88) = 6194 [pid 6192] close(3 [pid 6194] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6193] rt_sigprocmask(SIG_SETMASK, [], [pid 6194] <... rseq resumed>) = 0 [pid 6193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6192] <... close resumed>) = 0 [pid 6194] set_robust_list(0x7ff7dbc929a0, 24 [pid 6193] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6192] close(4 [pid 6194] <... set_robust_list resumed>) = 0 [pid 6193] <... futex resumed>) = 0 [pid 6192] <... close resumed>) = 0 [pid 6194] rt_sigprocmask(SIG_SETMASK, [], [pid 6193] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6192] mkdir("./file1", 0777 [pid 6121] <... close resumed>) = 0 [pid 6192] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6192] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6194] memfd_create("syzkaller", 0) = 3 [pid 6194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6121] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6087] <... futex resumed>) = 0 [pid 6121] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6087] exit_group(0 [pid 6121] <... futex resumed>) = ? [pid 6087] <... exit_group resumed>) = ? [pid 6089] <... futex resumed>) = ? [pid 6121] +++ exited with 0 +++ [ 217.159208][ T6192] loop0: detected capacity change from 0 to 32768 [pid 6089] +++ exited with 0 +++ [pid 6087] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6087, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=79 /* 0.79 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6196 ./strace-static-x86_64: Process 6196 attached [pid 6196] set_robust_list(0x5555693e0760, 24) = 0 [pid 6196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6196] setpgid(0, 0 [pid 6178] <... close resumed>) = 0 [pid 6196] <... setpgid resumed>) = 0 [pid 6196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6178] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6124] <... futex resumed>) = 0 [pid 6178] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6124] exit_group(0 [pid 6178] <... futex resumed>) = ? [pid 6125] <... futex resumed>) = ? [pid 6124] <... exit_group resumed>) = ? [pid 6125] +++ exited with 0 +++ executing program [pid 6196] <... openat resumed>) = 3 [pid 6196] write(3, "1000", 4) = 4 [pid 6196] close(3) = 0 [pid 6196] write(1, "executing program\n", 18) = 18 [pid 6196] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6196] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6196] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6203 attached => {parent_tid=[6203]}, 88) = 6203 [pid 6203] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6196] rt_sigprocmask(SIG_SETMASK, [], [pid 6203] <... rseq resumed>) = 0 [pid 6196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6178] +++ exited with 0 +++ [pid 6124] +++ exited with 0 +++ [pid 6196] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6124, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=101 /* 1.01 s */} --- [pid 6196] <... futex resumed>) = 0 [pid 6196] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6203] set_robust_list(0x7ff7dbc929a0, 24 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6203] <... set_robust_list resumed>) = 0 [pid 5845] <... openat resumed>) = 3 [pid 6203] rt_sigprocmask(SIG_SETMASK, [], [pid 5845] ioctl(3, LOOP_CLR_FD [pid 6203] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 6203] memfd_create("syzkaller", 0 [pid 5845] close(3 [pid 6203] <... memfd_create resumed>) = 3 [pid 6203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] <... close resumed>) = 0 [pid 6203] <... mmap resumed>) = 0x7ff7d3800000 [pid 6122] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6204 ./strace-static-x86_64: Process 6204 attached [pid 6122] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] set_robust_list(0x5555693e0760, 24) = 0 [pid 6204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6204] setpgid(0, 0) = 0 [pid 6122] <... futex resumed>) = 1 [pid 6084] <... futex resumed>) = 0 [pid 6122] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6084] exit_group(0 [pid 6204] <... openat resumed>) = 3 [pid 6122] <... futex resumed>) = ? [pid 6085] <... futex resumed>) = ? [pid 6084] <... exit_group resumed>) = ? [pid 6204] write(3, "1000", 4 [pid 6122] +++ exited with 0 +++ [pid 6085] +++ exited with 0 +++ [pid 6204] <... write resumed>) = 4 [pid 6204] close(3 [pid 6084] +++ exited with 0 +++ [pid 6204] <... close resumed>) = 0 [pid 6204] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6084, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=98 /* 0.98 s */} --- executing program [pid 6204] <... write resumed>) = 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6204] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6204] <... futex resumed>) = 0 [pid 6204] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6204] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5847] <... openat resumed>) = 3 [pid 6204] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 6204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6204] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5847] close(3 [pid 6204] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5847] <... close resumed>) = 0 [pid 6204] <... mprotect resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6204] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 6205 ./strace-static-x86_64: Process 6205 attached [pid 6204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6206]}, 88) = 6206 ./strace-static-x86_64: Process 6206 attached [pid 6204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6204] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6204] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6206] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6205] set_robust_list(0x5555693e0760, 24) = 0 [pid 6205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6206] <... rseq resumed>) = 0 [pid 6206] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6206] memfd_create("syzkaller", 0 [pid 6205] <... prctl resumed>) = 0 [ 217.336718][ T6192] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6206] <... memfd_create resumed>) = 3 [pid 6205] setpgid(0, 0 [pid 6206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6205] <... setpgid resumed>) = 0 [pid 6205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6205] write(3, "1000", 4) = 4 [pid 6205] close(3) = 0 [pid 6205] write(1, "executing program\n", 18) = 18 [pid 6205] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6205] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6205] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6205] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6205] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6207 attached => {parent_tid=[6207]}, 88) = 6207 [pid 6205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6205] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6205] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6207] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6207] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6207] memfd_create("syzkaller", 0) = 3 [ 217.408945][ T6192] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6192] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6192] ioctl(3, LOOP_CLR_FD) = 0 [ 217.601180][ T6192] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6192] close(3 [pid 6203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6206] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6192] <... close resumed>) = 0 [pid 6192] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6185] <... futex resumed>) = 0 [pid 6192] creat("./bus", 000 [pid 6185] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6185] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6185] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 6185] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6185] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6185] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6185] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6208]}, 88) = 6208 [pid 6185] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6208 attached NULL, 8) = 0 [pid 6185] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6185] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6208] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6194] <... write resumed>) = 16777216 [pid 6208] set_robust_list(0x7ff7dbc719a0, 24 [pid 6194] munmap(0x7ff7d3800000, 138412032 [pid 6208] <... set_robust_list resumed>) = 0 [pid 6208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6194] <... munmap resumed>) = 0 [pid 6208] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6208] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6194] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6185] <... futex resumed>) = 0 [pid 6185] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6185] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6208] memfd_create("syzkaller", 0) = 4 [pid 6194] <... openat resumed>) = 4 [pid 6208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6194] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6194] close(3) = 0 [pid 6194] close(4) = 0 [pid 6194] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 218.075224][ T6194] loop1: detected capacity change from 0 to 32768 [pid 6194] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6203] <... write resumed>) = 16777216 [ 218.279161][ T910] bcachefs (loop2): Journal stuck? Waited for 10 seconds... [ 218.279161][ T910] flags: replay_done,running,space_low [ 218.279161][ T910] dirty journal entries: 10/32768 [ 218.279161][ T910] seq: 12 [ 218.279161][ T910] seq_ondisk: 12 [ 218.279161][ T910] last_seq: 3 [ 218.279161][ T910] last_seq_ondisk: 3 [ 218.279161][ T910] flushed_seq_ondisk: 12 [ 218.279161][ T910] watermark: reclaim [ 218.279161][ T910] each entry reserved: 321 [ 218.279161][ T910] nr flush writes: 9 [ 218.279161][ T910] nr noflush writes: 3 [ 218.279161][ T910] average write size: 55.6 KiB [ 218.279161][ T910] nr direct reclaim: 0 [ 218.279161][ T910] nr background reclaim: 33 [ 218.279161][ T910] reclaim kicked: 1 [ 218.279161][ T910] reclaim runs in: 0 ms [ 218.279161][ T910] blocked: 0 [ 218.279161][ T910] current entry sectors: 0 [ 218.279161][ T910] current entry error: journal_full [ 218.279161][ T910] current entry: closed [ 218.279161][ T910] unwritten entries: [ 218.279161][ T910] last buf closed [ 218.279161][ T910] space: [ 218.279161][ T910] discarded 0:0 [ 218.279161][ T910] clean ondisk 0:0 [ 218.279161][ T910] clean 0:0 [ 218.279161][ T910] total 256:2048 [ 218.279161][ T910] dev 0: [ 218.279161][ T910] nr 8 [ 218.279161][ T910] bucket size 256 [ 218.279161][ T910] available 0:0 [ 218.279161][ T910] discard_idx 1 [ 218.279161][ T910] dirty_ondi [ 218.280772][ T25] bcachefs (loop2): Journal stuck? Waited for 10 seconds... [ 218.280772][ T25] flags: replay_done,running,space_low [ 218.280772][ T25] dirty journal entries: 10/32768 [ 218.280772][ T25] seq: 12 [ 218.280772][ T25] seq_ondisk: 12 [ 218.280772][ T25] last_seq: 3 [ 218.280772][ T25] last_seq_ondisk: 3 [ 218.280772][ T25] flushed_seq_ondisk: 12 [ 218.280772][ T25] watermark: reclaim [ 218.280772][ T25] each entry reserved: 321 [ 218.280772][ T25] nr flush writes: 9 [ 218.280772][ T25] nr noflush writes: 3 [ 218.280772][ T25] average write size: 55.6 KiB [ 218.280772][ T25] nr direct reclaim: 0 [ 218.280772][ T25] nr background reclaim: 33 [ 218.280772][ T25] reclaim kicked: 1 [ 218.280772][ T25] reclaim runs in: 0 ms [ 218.280772][ T25] blocked: 0 [ 218.280772][ T25] current entry sectors: 0 [ 218.280772][ T25] current entry error: journal_full [ 218.280772][ T25] current entry: closed [ 218.280772][ T25] unwritten entries: [ 218.280772][ T25] last buf closed [ 218.280772][ T25] space: [ 218.280772][ T25] discarded 0:0 [ 218.280772][ T25] clean ondisk 0:0 [ 218.280772][ T25] clean 0:0 [ 218.280772][ T25] total 256:2048 [ 218.280772][ T25] dev 0: [ 218.280772][ T25] nr 8 [ 218.280772][ T25] bucket size 256 [ 218.280772][ T25] available 0:0 [ 218.280772][ T25] discard_idx 1 [ 218.280772][ T25] dirty_ondi [ 218.302329][ T6194] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6203] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6192] <... creat resumed>) = 3 [pid 6203] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6192] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] <... write resumed>) = 16777216 [pid 6203] <... openat resumed>) = 4 [pid 6192] <... futex resumed>) = 0 [pid 6206] munmap(0x7ff7d3800000, 138412032 [pid 6203] ioctl(4, LOOP_SET_FD, 3 [ 218.644729][ T6194] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6192] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6206] <... munmap resumed>) = 0 [pid 6206] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6203] <... ioctl resumed>) = 0 [pid 6206] <... openat resumed>) = 4 [pid 6203] close(3) = 0 [pid 6207] <... write resumed>) = 16777216 [pid 6206] ioctl(4, LOOP_SET_FD, 3 [pid 6203] close(4 [pid 6207] munmap(0x7ff7d3800000, 138412032 [pid 6206] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6203] <... close resumed>) = 0 [pid 6207] <... munmap resumed>) = 0 [pid 6203] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6207] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6203] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6207] <... openat resumed>) = 4 [pid 6206] ioctl(4, LOOP_CLR_FD) = 0 [pid 6207] ioctl(4, LOOP_SET_FD, 3 [pid 6206] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6206] close(4) = 0 [pid 6206] close(3 [pid 6208] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6207] <... ioctl resumed>) = 0 [pid 6207] close(3) = 0 [ 218.694315][ T6203] loop4: detected capacity change from 0 to 32768 [ 218.733176][ T6207] loop3: detected capacity change from 0 to 32768 [pid 6207] close(4) = 0 [pid 6207] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 218.904231][ T6207] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 218.908259][ T6194] bcachefs: bch2_fs_get_tree() error: EINVAL [ 218.915455][ T6207] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 218.943127][ T6203] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6207] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6206] <... close resumed>) = 0 [pid 6194] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6194] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6206] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6194] <... openat resumed>) = 3 [pid 6206] <... futex resumed>) = 1 [pid 6204] <... futex resumed>) = 0 [pid 6206] creat("./bus", 000 [pid 6204] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6194] ioctl(3, LOOP_CLR_FD [pid 6204] <... futex resumed>) = 0 [pid 6206] <... creat resumed>) = 3 [pid 6204] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6194] <... ioctl resumed>) = 0 [ 218.964399][ T6203] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6194] close(3 [pid 6206] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6204] <... futex resumed>) = 0 [pid 6206] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6204] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6204] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6204] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6204] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6207] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6204] <... mprotect resumed>) = 0 [pid 6204] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6230 attached [pid 6207] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6204] <... clone3 resumed> => {parent_tid=[6230]}, 88) = 6230 [pid 6207] ioctl(3, LOOP_CLR_FD) = 0 [pid 6207] close(3 [ 219.081543][ T6207] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6204] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6230] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6204] <... futex resumed>) = 0 [pid 6230] set_robust_list(0x7ff7dbc719a0, 24 [pid 6204] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6230] <... set_robust_list resumed>) = 0 [pid 6230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6230] memfd_create("syzkaller", 0) = 4 [pid 6230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6203] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6208] <... write resumed>) = 16777216 [pid 6208] munmap(0x7ff7d3800000, 138412032 [ 219.222966][ T6203] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6203] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 6203] ioctl(3, LOOP_CLR_FD [pid 6208] <... munmap resumed>) = 0 [pid 6203] <... ioctl resumed>) = 0 [pid 6208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 6208] ioctl(5, LOOP_SET_FD, 4 [pid 6203] close(3 [pid 6194] <... close resumed>) = 0 [pid 6208] <... ioctl resumed>) = 0 [pid 6194] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6208] close(4) = 0 [pid 6208] close(5) = 0 [pid 6208] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 219.313173][ T6208] loop0: detected capacity change from 0 to 32768 [pid 6208] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6194] <... futex resumed>) = 1 [pid 6193] <... futex resumed>) = 0 [pid 6194] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6193] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6194] <... futex resumed>) = 0 [pid 6193] <... futex resumed>) = 1 [pid 6194] creat("./bus", 000 [ 219.368955][ T6208] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6208) [pid 6193] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6193] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6207] <... close resumed>) = 0 [pid 6207] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6205] <... futex resumed>) = 0 [pid 6193] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6205] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6193] <... mprotect resumed>) = 0 [pid 6205] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6207] creat("./bus", 000 [pid 6193] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6193] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6231 attached [pid 6231] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6193] <... clone3 resumed> => {parent_tid=[6231]}, 88) = 6231 [pid 6231] <... rseq resumed>) = 0 [pid 6193] rt_sigprocmask(SIG_SETMASK, [], [pid 6231] set_robust_list(0x7ff7dbc719a0, 24 [pid 6193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6231] <... set_robust_list resumed>) = 0 [pid 6193] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6231] rt_sigprocmask(SIG_SETMASK, [], [pid 6193] <... futex resumed>) = 0 [pid 6231] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6231] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6193] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6231] <... write resumed>) = -1 EBADF (Bad file descriptor) [ 219.422675][ T6208] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6231] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6231] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6193] <... futex resumed>) = 0 [pid 6193] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6231] <... futex resumed>) = 0 [pid 6193] <... futex resumed>) = 1 [pid 6231] memfd_create("syzkaller", 0 [pid 6193] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6231] <... memfd_create resumed>) = 4 [pid 6231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6205] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6205] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6205] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6205] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6236 attached => {parent_tid=[6236]}, 88) = 6236 [pid 6205] rt_sigprocmask(SIG_SETMASK, [], [pid 6236] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6205] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6236] <... rseq resumed>) = 0 [pid 6205] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6236] set_robust_list(0x7ff7dbc719a0, 24 [pid 6205] <... futex resumed>) = 0 [pid 6236] <... set_robust_list resumed>) = 0 [pid 6205] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6236] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 219.486153][ T6208] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 6236] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6236] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6236] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6205] <... futex resumed>) = 0 [pid 6205] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6236] <... futex resumed>) = 0 [pid 6205] <... futex resumed>) = 1 [pid 6236] memfd_create("syzkaller", 0 [pid 6205] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6236] <... memfd_create resumed>) = 4 [pid 6236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6203] <... close resumed>) = 0 [pid 6203] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6203] creat("./bus", 000 [pid 6196] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6196] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 219.705585][ T6208] BTRFS info (device loop0): rebuilding free space tree [pid 6230] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6196] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6196] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6196] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6249 attached [pid 6249] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6196] <... clone3 resumed> => {parent_tid=[6249]}, 88) = 6249 [pid 6249] <... rseq resumed>) = 0 [pid 6196] rt_sigprocmask(SIG_SETMASK, [], [pid 6249] set_robust_list(0x7ff7dbc719a0, 24 [pid 6196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6249] <... set_robust_list resumed>) = 0 [pid 6196] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6196] <... futex resumed>) = 0 [pid 6249] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6196] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6249] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6249] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [ 219.788571][ T6208] BTRFS info (device loop0): disabling free space tree [pid 6196] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6249] memfd_create("syzkaller", 0) = 4 [pid 6196] <... futex resumed>) = 0 [pid 6249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6196] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6249] <... mmap resumed>) = 0x7ff7d3800000 [pid 6231] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 219.837863][ T6208] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 219.848928][ T6208] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6236] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6230] <... write resumed>) = 16777216 [pid 6230] munmap(0x7ff7d3800000, 138412032 [pid 6249] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6230] <... munmap resumed>) = 0 [pid 6206] <... write resumed>) = 16776704 [pid 6206] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6230] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6230] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6230] ioctl(5, LOOP_CLR_FD) = 0 [pid 6230] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6230] close(5) = 0 [pid 6206] <... futex resumed>) = 0 [pid 6206] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6230] close(4 [pid 6236] <... write resumed>) = 16777216 [pid 6231] <... write resumed>) = 16777216 [pid 6231] munmap(0x7ff7d3800000, 138412032 [pid 6236] munmap(0x7ff7d3800000, 138412032 [pid 6231] <... munmap resumed>) = 0 [pid 6231] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6236] <... munmap resumed>) = 0 [pid 6231] <... openat resumed>) = 5 [pid 6231] ioctl(5, LOOP_SET_FD, 4 [pid 6236] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 6236] ioctl(5, LOOP_SET_FD, 4 [pid 6231] <... ioctl resumed>) = 0 [pid 6231] close(4) = 0 [pid 6231] close(5 [pid 6236] <... ioctl resumed>) = 0 [pid 6231] <... close resumed>) = 0 [pid 6236] close(4 [pid 6231] mkdir("./bus", 0777 [pid 6236] <... close resumed>) = 0 [pid 6231] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6236] close(5 [pid 6231] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6236] <... close resumed>) = 0 [pid 6236] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 220.304054][ T6231] loop1: detected capacity change from 0 to 32768 [ 220.315392][ T6236] loop3: detected capacity change from 0 to 32768 [ 220.340706][ T6231] BTRFS: device /dev/loop1 (7:1) using temp-fsid 3d087336-3c90-4c14-a354-2ba682d11027 [ 220.357841][ T6231] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6231) [ 220.391628][ T6236] BTRFS: device /dev/loop3 (7:3) using temp-fsid 1e0541d2-2c97-45e7-b6ab-cde525302264 [ 220.411812][ T6231] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 220.430137][ T6236] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6236) [ 220.444160][ T6231] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 220.492546][ T6236] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6236] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6230] <... close resumed>) = 0 [pid 6230] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6204] <... futex resumed>) = 0 [pid 6230] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6204] exit_group(0 [pid 6230] <... futex resumed>) = ? [pid 6204] <... exit_group resumed>) = ? [ 220.538275][ T6236] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 6230] +++ exited with 0 +++ [pid 6206] <... futex resumed>) = ? [pid 6206] +++ exited with 0 +++ [pid 6204] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6204, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=96 /* 0.96 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6277 ./strace-static-x86_64: Process 6277 attached [pid 6277] set_robust_list(0x5555693e0760, 24) = 0 [pid 6277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6277] setpgid(0, 0) = 0 [pid 6277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6277] write(3, "1000", 4) = 4 [pid 6277] close(3) = 0 [pid 6277] write(1, "executing program\n", 18) = 18 [pid 6277] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6277] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6277] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6277] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6281]}, 88) = 6281 [pid 6277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6281 attached [pid 6249] <... write resumed>) = 16777216 [pid 6277] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6249] munmap(0x7ff7d3800000, 138412032 [pid 6281] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6277] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6281] <... rseq resumed>) = 0 [pid 6281] set_robust_list(0x7ff7dbc929a0, 24 [pid 6207] <... creat resumed>) = 3 [pid 6203] <... creat resumed>) = 3 [pid 6207] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6207] <... futex resumed>) = 0 [pid 6203] <... futex resumed>) = 0 [pid 6281] <... set_robust_list resumed>) = 0 [pid 6207] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6194] <... creat resumed>) = 3 [pid 6281] rt_sigprocmask(SIG_SETMASK, [], [ 220.638754][ T6231] BTRFS info (device loop1): rebuilding free space tree [pid 6194] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6194] <... futex resumed>) = 0 [pid 6194] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6281] memfd_create("syzkaller", 0) = 3 [pid 6281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6249] <... munmap resumed>) = 0 [ 220.694978][ T6208] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 220.695719][ T6231] BTRFS info (device loop1): disabling free space tree [ 220.718227][ T6236] BTRFS info (device loop3): rebuilding free space tree [pid 6249] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 6249] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6249] close(4) = 0 [pid 6249] close(5) = 0 [ 220.752748][ T6249] loop4: detected capacity change from 0 to 32768 [ 220.766286][ T6236] BTRFS info (device loop3): disabling free space tree [ 220.769225][ T6231] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 220.788340][ T6236] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6249] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 220.818450][ T6236] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 220.830715][ T6249] BTRFS: device /dev/loop4 (7:4) using temp-fsid 9ae9e82f-fcf2-44e4-a495-e73b1ebd329b [ 220.839524][ T6231] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 220.842371][ T6249] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6249) [ 220.883590][ T6231] BTRFS info (device loop1): last unmount of filesystem 3d087336-3c90-4c14-a354-2ba682d11027 [ 220.912680][ T6236] BTRFS info (device loop3): last unmount of filesystem 1e0541d2-2c97-45e7-b6ab-cde525302264 [pid 6249] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6208] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6208] ioctl(4, LOOP_CLR_FD) = 0 [pid 6208] close(4 [pid 6231] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 220.959572][ T6249] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6231] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6231] ioctl(4, LOOP_CLR_FD) = 0 [ 221.008155][ T6249] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 6231] close(4 [pid 6236] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6236] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6236] ioctl(4, LOOP_CLR_FD) = 0 [pid 6236] close(4) = 0 [pid 6236] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 221.099258][ T11] bcachefs (loop2): Journal stuck? Waited for 10 seconds... [ 221.099258][ T11] flags: replay_done,running,space_low [ 221.099258][ T11] dirty journal entries: 10/32768 [ 221.099258][ T11] seq: 12 [ 221.099258][ T11] seq_ondisk: 12 [ 221.099258][ T11] last_seq: 3 [ 221.099258][ T11] last_seq_ondisk: 3 [ 221.099258][ T11] flushed_seq_ondisk: 12 [ 221.099258][ T11] watermark: reclaim [ 221.099258][ T11] each entry reserved: 321 [ 221.099258][ T11] nr flush writes: 9 [ 221.099258][ T11] nr noflush writes: 3 [ 221.099258][ T11] average write size: 55.6 KiB [ 221.099258][ T11] nr direct reclaim: 0 [ 221.099258][ T11] nr background reclaim: 33 [ 221.099258][ T11] reclaim kicked: 1 [ 221.099258][ T11] reclaim runs in: 0 ms [ 221.099258][ T11] blocked: 0 [ 221.099258][ T11] current entry sectors: 0 [ 221.099258][ T11] current entry error: journal_full [ 221.099258][ T11] current entry: closed [ 221.099258][ T11] unwritten entries: [ 221.099258][ T11] last buf closed [ 221.099258][ T11] space: [ 221.099258][ T11] discarded 0:0 [ 221.099258][ T11] clean ondisk 0:0 [ 221.099258][ T11] clean 0:0 [ 221.099258][ T11] total 256:2048 [ 221.099258][ T11] dev 0: [ 221.099258][ T11] nr 8 [ 221.099258][ T11] bucket size 256 [pid 6236] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6205] <... futex resumed>) = 0 [pid 5843] kill(-6185, SIGKILL) = 0 [pid 5843] kill(6185, SIGKILL) = 0 [pid 6281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6205] exit_group(0 [pid 6192] <... futex resumed>) = ? [pid 6185] <... futex resumed>) = ? [pid 6236] <... futex resumed>) = ? [pid 6208] <... close resumed>) = ? [pid 6205] <... exit_group resumed>) = ? [pid 6192] +++ killed by SIGKILL +++ [pid 6236] +++ exited with 0 +++ [ 221.099258][ T11] available 0:0 [ 221.099258][ T11] discard_idx 1 [ 221.099258][ T11] dirty_ondi [ 221.175545][ T6249] BTRFS info (device loop4): rebuilding free space tree [pid 6207] <... futex resumed>) = ? [pid 6208] +++ killed by SIGKILL +++ [pid 6207] +++ exited with 0 +++ [pid 6185] +++ killed by SIGKILL +++ [pid 6205] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6205, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=78 /* 0.78 s */} --- [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=6185, si_uid=0, si_status=SIGKILL, si_utime=14 /* 0.14 s */, si_stime=100 /* 1.00 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6301 ./strace-static-x86_64: Process 6301 attached [pid 6301] set_robust_list(0x5555693e0760, 24) = 0 [pid 6301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6301] setpgid(0, 0 [pid 5847] <... openat resumed>) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 6301] <... setpgid resumed>) = 0 [pid 6301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6301] <... openat resumed>) = 3 [pid 6301] write(3, "1000", 4 [pid 5847] close(3) = 0 executing program [pid 6301] <... write resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6301] close(3) = 0 [pid 6301] write(1, "executing program\n", 18) = 18 [pid 6301] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6301] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6301] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6301] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 6302 attached [pid 6301] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 6302 [pid 6302] set_robust_list(0x5555693e0760, 24) = 0 [pid 6301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6303 attached [pid 6302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6301] <... clone3 resumed> => {parent_tid=[6303]}, 88) = 6303 [pid 6301] rt_sigprocmask(SIG_SETMASK, [], [pid 6302] <... prctl resumed>) = 0 [pid 6301] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6301] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6303] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6301] <... futex resumed>) = 0 [pid 6303] <... rseq resumed>) = 0 [pid 6301] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6303] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6302] setpgid(0, 0 [pid 6231] <... close resumed>) = 0 [pid 6303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6303] memfd_create("syzkaller", 0 [pid 6302] <... setpgid resumed>) = 0 [pid 6303] <... memfd_create resumed>) = 3 [pid 6303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6303] <... mmap resumed>) = 0x7ff7d3800000 [pid 6231] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6231] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULLexecuting program [pid 6302] <... openat resumed>) = 3 [pid 6193] <... futex resumed>) = 0 [pid 6193] exit_group(0 [pid 6302] write(3, "1000", 4) = 4 [pid 6302] close(3 [pid 6193] <... exit_group resumed>) = ? [pid 6302] <... close resumed>) = 0 [pid 6231] <... futex resumed>) = ? [pid 6302] write(1, "executing program\n", 18 [pid 6194] <... futex resumed>) = ? [pid 6302] <... write resumed>) = 18 [pid 6194] +++ exited with 0 +++ [pid 6302] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6231] +++ exited with 0 +++ [pid 6193] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6193, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=102 /* 1.02 s */} --- [pid 6302] <... futex resumed>) = 0 [ 221.478878][ T6249] BTRFS info (device loop4): disabling free space tree [ 221.492591][ T6249] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6302] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6304 attached , child_tidptr=0x5555693e0750) = 6304 [pid 6304] set_robust_list(0x5555693e0760, 24) = 0 [pid 6304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6302] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6304] <... prctl resumed>) = 0 [pid 6302] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6304] setpgid(0, 0 [pid 6302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0executing program [pid 6304] <... setpgid resumed>) = 0 [pid 6302] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6302] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6304] write(3, "1000", 4) = 4 [pid 6304] close(3) = 0 [pid 6304] write(1, "executing program\n", 18) = 18 [pid 6304] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6304] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6304] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6302] <... mprotect resumed>) = 0 [pid 6304] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6304] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6302] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6304] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6302] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 6305 attached [pid 6302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6306 attached [pid 6304] <... clone3 resumed> => {parent_tid=[6305]}, 88) = 6305 [pid 6306] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6305] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6304] rt_sigprocmask(SIG_SETMASK, [], [pid 6302] <... clone3 resumed> => {parent_tid=[6306]}, 88) = 6306 [pid 6305] <... rseq resumed>) = 0 [pid 6302] rt_sigprocmask(SIG_SETMASK, [], [pid 6305] set_robust_list(0x7ff7dbc929a0, 24 [pid 6304] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6302] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6305] <... set_robust_list resumed>) = 0 [pid 6304] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6305] rt_sigprocmask(SIG_SETMASK, [], [pid 6302] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6306] <... rseq resumed>) = 0 [pid 6305] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6304] <... futex resumed>) = 0 [pid 6302] <... futex resumed>) = 0 [pid 6305] memfd_create("syzkaller", 0 [pid 6304] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6305] <... memfd_create resumed>) = 3 [pid 6302] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6306] set_robust_list(0x7ff7dbc929a0, 24 [pid 6305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6306] <... set_robust_list resumed>) = 0 [pid 6305] <... mmap resumed>) = 0x7ff7d3800000 [ 221.538043][ T6249] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6306] memfd_create("syzkaller", 0) = 3 [pid 6306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 221.599170][ T6249] BTRFS info (device loop4): last unmount of filesystem 9ae9e82f-fcf2-44e4-a495-e73b1ebd329b [pid 6249] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6249] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6249] ioctl(4, LOOP_CLR_FD) = 0 [pid 6249] close(4) = 0 [pid 6249] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6249] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] exit_group(0 [pid 6249] <... futex resumed>) = ? [pid 6203] <... futex resumed>) = ? [pid 6196] <... exit_group resumed>) = ? [pid 6203] +++ exited with 0 +++ [pid 6249] +++ exited with 0 +++ [pid 6196] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6196, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=83 /* 0.83 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6307 attached , child_tidptr=0x5555693e0750) = 6307 [pid 6307] set_robust_list(0x5555693e0760, 24) = 0 [pid 6307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6307] setpgid(0, 0) = 0 [pid 6307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6307] write(3, "1000", 4) = 4 [pid 6307] close(3) = 0 [pid 6307] write(1, "executing program\n", 18) = 18 [pid 6307] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6307] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6281] <... write resumed>) = 16777216 [pid 6307] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6281] munmap(0x7ff7d3800000, 138412032 [pid 6307] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6307] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6307] <... mprotect resumed>) = 0 [pid 6307] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6281] <... munmap resumed>) = 0 [pid 6307] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6281] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6307] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6308 attached [pid 6281] <... openat resumed>) = 4 [pid 6308] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6307] <... clone3 resumed> => {parent_tid=[6308]}, 88) = 6308 [pid 6281] ioctl(4, LOOP_SET_FD, 3 [pid 6307] rt_sigprocmask(SIG_SETMASK, [], [pid 6281] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6307] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6281] ioctl(4, LOOP_CLR_FD [pid 6307] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6281] <... ioctl resumed>) = 0 [pid 6307] <... futex resumed>) = 0 [pid 6308] <... rseq resumed>) = 0 [pid 6307] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6308] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6308] rt_sigprocmask(SIG_SETMASK, [], [pid 6281] ioctl(4, LOOP_SET_FD, 3 [pid 6308] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6281] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6308] memfd_create("syzkaller", 0 [pid 6281] close(4 [pid 6308] <... memfd_create resumed>) = 3 [pid 6281] <... close resumed>) = 0 [pid 6281] close(3 [pid 6308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6281] <... close resumed>) = 0 [pid 6281] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6277] <... futex resumed>) = 0 [pid 6281] creat("./bus", 000 [pid 6277] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6281] <... creat resumed>) = 3 [pid 6277] <... futex resumed>) = 0 [pid 6281] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6277] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6281] <... futex resumed>) = 0 [pid 6281] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6277] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6277] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6281] <... futex resumed>) = 0 [pid 6277] <... futex resumed>) = 1 [pid 6281] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6277] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6277] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6277] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6277] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6309]}, 88) = 6309 [pid 6277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6277] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6309 attached ) = 0 [pid 6309] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6277] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6309] <... rseq resumed>) = 0 [pid 6309] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6309] memfd_create("syzkaller", 0) = 4 [pid 6309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6303] <... write resumed>) = 16777216 [pid 6303] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6303] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6303] close(3) = 0 [pid 6303] close(4) = 0 [pid 6303] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 222.501838][ T6303] loop0: detected capacity change from 0 to 32768 [pid 6303] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6306] <... write resumed>) = 16777216 [pid 6306] munmap(0x7ff7d3800000, 138412032 [pid 6305] <... write resumed>) = 16777216 [pid 6306] <... munmap resumed>) = 0 [pid 6306] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6305] munmap(0x7ff7d3800000, 138412032 [pid 6306] ioctl(4, LOOP_SET_FD, 3 [pid 6305] <... munmap resumed>) = 0 [pid 6306] <... ioctl resumed>) = 0 [pid 6306] close(3) = 0 [pid 6305] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6306] close(4 [pid 6305] <... openat resumed>) = 4 [pid 6306] <... close resumed>) = 0 [ 222.598344][ T6306] loop3: detected capacity change from 0 to 32768 [pid 6305] ioctl(4, LOOP_SET_FD, 3 [pid 6306] mkdir("./file1", 0777 [pid 6305] <... ioctl resumed>) = 0 [pid 6306] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6306] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6305] close(3) = 0 [ 222.639420][ T6305] loop1: detected capacity change from 0 to 32768 [pid 6305] close(4) = 0 [pid 6305] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6305] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6308] <... write resumed>) = 16777216 [ 222.743815][ T6303] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6308] munmap(0x7ff7d3800000, 138412032 [pid 6309] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6308] <... munmap resumed>) = 0 [pid 6308] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 222.799810][ T6303] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6308] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6308] close(3) = 0 [pid 6308] close(4) = 0 [pid 6308] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 222.841123][ T6308] loop4: detected capacity change from 0 to 32768 [ 222.849576][ T6306] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 222.858969][ T6306] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 222.863011][ T6305] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 222.942709][ T6305] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6308] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6309] <... write resumed>) = 16777216 [pid 6303] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6309] munmap(0x7ff7d3800000, 138412032 [pid 6303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6303] ioctl(3, LOOP_CLR_FD) = 0 [ 223.088304][ T6303] bcachefs: bch2_fs_get_tree() error: EINVAL [ 223.108330][ T6306] bcachefs: bch2_fs_get_tree() error: EINVAL [ 223.116611][ T6305] bcachefs: bch2_fs_get_tree() error: EINVAL [ 223.122947][ T6308] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6303] close(3 [pid 6309] <... munmap resumed>) = 0 [pid 6309] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6306] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6305] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6309] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6309] ioctl(5, LOOP_CLR_FD [pid 6306] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6305] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6309] <... ioctl resumed>) = 0 [ 223.137329][ T6308] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6306] <... openat resumed>) = 3 [pid 6305] <... openat resumed>) = 3 [pid 6306] ioctl(3, LOOP_CLR_FD [pid 6305] ioctl(3, LOOP_CLR_FD [pid 6309] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6306] <... ioctl resumed>) = 0 [pid 6305] <... ioctl resumed>) = 0 [pid 6309] close(5) = 0 [pid 6306] close(3 [pid 6305] close(3 [pid 6309] close(4 [pid 6281] <... write resumed>) = 16776704 [pid 6281] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6281] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6308] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6308] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 6308] ioctl(3, LOOP_CLR_FD) = 0 [ 223.431228][ T6308] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6308] close(3 [pid 6309] <... close resumed>) = 0 [pid 6303] <... close resumed>) = 0 [pid 6303] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6309] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6277] <... futex resumed>) = 0 [pid 6309] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6303] <... futex resumed>) = 1 [pid 6301] <... futex resumed>) = 0 [pid 6303] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6301] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6277] exit_group(0 [pid 6303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6301] <... futex resumed>) = 0 [pid 6277] <... exit_group resumed>) = ? [pid 6309] <... futex resumed>) = ? [pid 6303] creat("./bus", 000 [pid 6301] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6281] <... futex resumed>) = ? [pid 6309] +++ exited with 0 +++ [pid 6306] <... close resumed>) = 0 [pid 6305] <... close resumed>) = 0 [pid 6306] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6281] +++ exited with 0 +++ [pid 6277] +++ exited with 0 +++ [pid 6306] <... futex resumed>) = 1 [pid 6305] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6302] <... futex resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6277, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=102 /* 1.02 s */} --- [pid 6306] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6305] <... futex resumed>) = 1 [pid 6304] <... futex resumed>) = 0 [pid 6302] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6305] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6302] <... futex resumed>) = 0 [pid 6302] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6304] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6305] <... futex resumed>) = 0 [pid 6304] <... futex resumed>) = 1 [pid 6306] creat("./bus", 000 [pid 6305] creat("./bus", 000 [pid 6304] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 6301] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6301] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6301] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6301] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6338 attached => {parent_tid=[6338]}, 88) = 6338 [pid 6301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6301] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6301] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6338] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6338] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 6338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6338] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6338] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6301] <... futex resumed>) = 0 [pid 6301] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6301] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6338] <... futex resumed>) = 1 [pid 6338] memfd_create("syzkaller", 0) = 4 [pid 5845] <... ioctl resumed>) = 0 [pid 6338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] close(3 [pid 6338] <... mmap resumed>) = 0x7ff7d3800000 [pid 6302] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5845] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6302] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6339 attached [pid 6308] <... close resumed>) = 0 [pid 6304] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6339] set_robust_list(0x5555693e0760, 24 [pid 6304] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 6339 [pid 6302] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6302] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6302] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6308] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6302] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6308] <... futex resumed>) = 1 [pid 6307] <... futex resumed>) = 0 [pid 6302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 6308] creat("./bus", 000 [pid 6307] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6302] <... clone3 resumed> => {parent_tid=[6340]}, 88) = 6340 [pid 6307] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6302] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6340 attached ) = 0 [pid 6340] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6304] <... futex resumed>) = 0 [pid 6339] <... set_robust_list resumed>) = 0 [pid 6340] <... rseq resumed>) = 0 [pid 6304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6340] set_robust_list(0x7ff7dbc719a0, 24 [pid 6339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6304] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6302] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6340] <... set_robust_list resumed>) = 0 [pid 6339] <... prctl resumed>) = 0 [pid 6304] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6340] rt_sigprocmask(SIG_SETMASK, [], [pid 6339] setpgid(0, 0 [pid 6340] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6339] <... setpgid resumed>) = 0 [pid 6304] <... mprotect resumed>) = 0 [pid 6340] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6304] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6340] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6304] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6340] <... futex resumed>) = 1 [pid 6339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 6302] <... futex resumed>) = 0 [pid 6340] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6302] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6339] <... openat resumed>) = 3 [pid 6302] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6341 attached [pid 6340] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6339] write(3, "1000", 4 [pid 6302] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6341] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053executing program ) = 0 [pid 6340] memfd_create("syzkaller", 0 [pid 6339] <... write resumed>) = 4 [pid 6304] <... clone3 resumed> => {parent_tid=[6341]}, 88) = 6341 [pid 6341] set_robust_list(0x7ff7dbc719a0, 24 [pid 6339] close(3 [pid 6341] <... set_robust_list resumed>) = 0 [pid 6340] <... memfd_create resumed>) = 4 [pid 6304] rt_sigprocmask(SIG_SETMASK, [], [pid 6341] rt_sigprocmask(SIG_SETMASK, [], [pid 6339] <... close resumed>) = 0 [pid 6304] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6339] write(1, "executing program\n", 18 [pid 6304] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6341] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6339] <... write resumed>) = 18 [pid 6304] <... futex resumed>) = 0 [pid 6341] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6341] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6339] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6304] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6341] <... futex resumed>) = 0 [pid 6339] <... futex resumed>) = 0 [pid 6304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6341] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6339] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 6304] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6341] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6304] <... futex resumed>) = 0 [pid 6341] memfd_create("syzkaller", 0 [pid 6304] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6341] <... memfd_create resumed>) = 4 [pid 6340] <... mmap resumed>) = 0x7ff7d3800000 [pid 6339] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6307] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6307] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6307] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6307] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6307] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6342]}, 88) = 6342 [pid 6307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6307] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6307] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6342 attached [pid 6339] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6342] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6342] <... rseq resumed>) = 0 [pid 6339] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6342] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6342] rt_sigprocmask(SIG_SETMASK, [], [pid 6339] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6342] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6342] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6339] <... mprotect resumed>) = 0 [pid 6342] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6339] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6307] <... futex resumed>) = 0 [pid 6307] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6307] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6342] memfd_create("syzkaller", 0 [pid 6339] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6342] <... memfd_create resumed>) = 4 [pid 6339] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6343]}, 88) = 6343 [pid 6339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6339] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6339] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6343 attached [pid 6342] <... mmap resumed>) = 0x7ff7d3800000 [pid 6343] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6343] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6343] memfd_create("syzkaller", 0) = 3 [pid 6343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6308] <... creat resumed>) = 3 [pid 6306] <... creat resumed>) = 3 [pid 6305] <... creat resumed>) = 3 [pid 6303] <... creat resumed>) = 3 [pid 6308] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6306] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6305] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6303] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6308] <... futex resumed>) = 0 [pid 6305] <... futex resumed>) = 0 [pid 6303] <... futex resumed>) = 0 [pid 6308] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6306] <... futex resumed>) = 0 [pid 6305] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6306] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6303] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6338] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6341] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6342] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6340] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6338] <... write resumed>) = 16777216 [pid 6338] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 6338] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6338] close(4) = 0 [pid 6338] close(5) = 0 [pid 6338] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6338] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6343] <... write resumed>) = 16777216 [ 224.469750][ T6338] loop0: detected capacity change from 0 to 32768 [ 224.487293][ T6338] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6338) [pid 6343] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6343] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6343] ioctl(4, LOOP_CLR_FD) = 0 [pid 6343] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6343] close(4) = 0 [pid 6343] close(3 [pid 6341] <... write resumed>) = 16777216 [pid 6340] <... write resumed>) = 16777216 [pid 6342] <... write resumed>) = 16777216 [pid 6341] munmap(0x7ff7d3800000, 138412032 [ 224.559063][ T6338] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 224.597849][ T6338] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 6340] munmap(0x7ff7d3800000, 138412032 [pid 6341] <... munmap resumed>) = 0 [pid 6340] <... munmap resumed>) = 0 [pid 6342] munmap(0x7ff7d3800000, 138412032 [pid 6341] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 6341] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6341] close(4) = 0 [pid 6341] close(5 [pid 6340] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6341] <... close resumed>) = 0 [pid 6340] <... openat resumed>) = 5 [pid 6340] ioctl(5, LOOP_SET_FD, 4 [pid 6342] <... munmap resumed>) = 0 [pid 6341] mkdir("./bus", 0777 [pid 6342] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6341] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6342] <... openat resumed>) = 5 [pid 6341] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6342] ioctl(5, LOOP_SET_FD, 4 [pid 6340] <... ioctl resumed>) = 0 [pid 6340] close(4) = 0 [pid 6340] close(5) = 0 [pid 6340] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 224.668995][ T6341] loop1: detected capacity change from 0 to 32768 [ 224.687290][ T6340] loop3: detected capacity change from 0 to 32768 [ 224.702783][ T6341] BTRFS: device /dev/loop1 (7:1) using temp-fsid 209a69bf-bb02-439e-91b1-73dbca020997 [ 224.704658][ T6342] loop4: detected capacity change from 0 to 32768 [pid 6340] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6342] <... ioctl resumed>) = 0 [pid 6342] close(4) = 0 [pid 6342] close(5) = 0 [pid 6342] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6342] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6343] <... close resumed>) = 0 [pid 6343] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6343] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6339] <... futex resumed>) = 0 [pid 6339] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6343] <... futex resumed>) = 0 [pid 6339] <... futex resumed>) = 1 [pid 6343] creat("./bus", 000 [ 224.740243][ T6338] BTRFS info (device loop0): rebuilding free space tree [ 224.751222][ T6341] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6341) [pid 6339] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6343] <... creat resumed>) = 3 [pid 6343] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6343] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6339] <... futex resumed>) = 0 [pid 6339] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6339] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 224.810547][ T6338] BTRFS info (device loop0): disabling free space tree [ 224.828935][ T6338] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 224.846008][ T6340] BTRFS: device /dev/loop3 (7:3) using temp-fsid c2b0db61-54ff-4bde-9acf-d3a5debf85d1 [pid 6343] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6339] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6339] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6339] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6339] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6339] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6360]}, 88) = 6360 [pid 6339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6339] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 224.858601][ T6341] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 224.886475][ T6338] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 224.897268][ T6340] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6340) [pid 6339] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6360 attached [pid 6360] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6360] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6360] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6360] memfd_create("syzkaller", 0) = 4 [pid 6360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 224.916578][ T6341] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 224.962558][ T6342] BTRFS: device /dev/loop4 (7:4) using temp-fsid f9168290-ad3e-41eb-abe3-eb463a65d3f4 [ 224.987869][ T6342] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6342) [ 224.989317][ T6340] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 225.047549][ T6340] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 225.063568][ T6342] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 225.119466][ T6342] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 225.151416][ T6341] BTRFS info (device loop1): rebuilding free space tree [ 225.199908][ T6341] BTRFS info (device loop1): disabling free space tree [ 225.206976][ T6341] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 225.217585][ T6341] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6343] <... write resumed>) = 16776704 [pid 6343] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 225.412687][ T6341] BTRFS info (device loop1): last unmount of filesystem 209a69bf-bb02-439e-91b1-73dbca020997 [ 225.423965][ T6338] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6343] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 225.466868][ T6342] BTRFS info (device loop4): rebuilding free space tree [ 225.485780][ T6340] BTRFS info (device loop3): rebuilding free space tree [ 225.516260][ T6342] BTRFS info (device loop4): disabling free space tree [ 225.525422][ T6340] BTRFS info (device loop3): disabling free space tree [ 225.541063][ T6340] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 225.550947][ T6340] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6360] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6341] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6341] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6341] ioctl(4, LOOP_CLR_FD) = 0 [pid 6338] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 225.557896][ T6342] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 225.575464][ T6340] BTRFS info (device loop3): last unmount of filesystem c2b0db61-54ff-4bde-9acf-d3a5debf85d1 [pid 6341] close(4 [pid 6338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6338] ioctl(4, LOOP_CLR_FD) = 0 [ 225.608170][ T6342] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6338] close(4 [pid 6340] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6340] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6340] ioctl(4, LOOP_CLR_FD) = 0 [pid 6340] close(4) = 0 [pid 6340] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6302] <... futex resumed>) = 0 [pid 6340] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6302] exit_group(0 [pid 6306] <... futex resumed>) = ? [pid 6302] <... exit_group resumed>) = ? [pid 6340] <... futex resumed>) = ? [pid 6306] +++ exited with 0 +++ [ 225.711617][ T6342] BTRFS info (device loop4): last unmount of filesystem f9168290-ad3e-41eb-abe3-eb463a65d3f4 [pid 6342] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6342] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6342] ioctl(4, LOOP_CLR_FD) = 0 [pid 6342] close(4 [pid 6341] <... close resumed>) = 0 [pid 6341] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6304] <... futex resumed>) = 0 [pid 6341] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6304] exit_group(0 [pid 6341] <... futex resumed>) = ? [pid 6305] <... futex resumed>) = ? [pid 6304] <... exit_group resumed>) = ? [pid 6341] +++ exited with 0 +++ [pid 6338] <... close resumed>) = 0 [pid 6338] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6301] <... futex resumed>) = 0 [pid 6301] exit_group(0 [pid 6303] <... futex resumed>) = ? [pid 6301] <... exit_group resumed>) = ? [pid 6303] +++ exited with 0 +++ [pid 6338] +++ exited with 0 +++ [pid 6301] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6301, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=102 /* 1.02 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6409 ./strace-static-x86_64: Process 6409 attached [pid 6409] set_robust_list(0x5555693e0760, 24) = 0 [pid 6409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6409] setpgid(0, 0) = 0 [pid 6409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6409] write(3, "1000", 4) = 4 [pid 6409] close(3) = 0 [pid 6409] write(1, "executing program\n", 18) = 18 [pid 6409] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6360] <... write resumed>) = 16777216 [pid 6409] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 6360] munmap(0x7ff7d3800000, 138412032 [pid 6409] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6409] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6409] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6410 attached [pid 6410] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6409] <... clone3 resumed> => {parent_tid=[6410]}, 88) = 6410 [pid 6410] <... rseq resumed>) = 0 [pid 6409] rt_sigprocmask(SIG_SETMASK, [], [pid 6410] set_robust_list(0x7ff7dbc929a0, 24 [pid 6409] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6410] <... set_robust_list resumed>) = 0 [pid 6409] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6410] rt_sigprocmask(SIG_SETMASK, [], [pid 6409] <... futex resumed>) = 0 [pid 6410] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6409] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6410] memfd_create("syzkaller", 0) = 3 [pid 6410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6360] <... munmap resumed>) = 0 [pid 6305] +++ exited with 0 +++ [pid 6304] +++ exited with 0 +++ [pid 6360] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6340] +++ exited with 0 +++ [pid 6302] +++ exited with 0 +++ [pid 6360] ioctl(5, LOOP_SET_FD, 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6304, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=91 /* 0.91 s */} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6302, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=81 /* 0.81 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6360] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6360] ioctl(5, LOOP_CLR_FD) = 0 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] <... openat resumed>) = 3 [pid 5847] close(3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5847] <... close resumed>) = 0 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] close(3) = 0 [pid 6360] ioctl(5, LOOP_SET_FD, 4./strace-static-x86_64: Process 6411 attached ) = -1 EBUSY (Device or resource busy) [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 6411 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6360] close(5 [pid 6411] set_robust_list(0x5555693e0760, 24 [pid 6360] <... close resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 6412 [pid 6360] close(4 [pid 6411] <... set_robust_list resumed>) = 0 [pid 6411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6411] setpgid(0, 0) = 0 [pid 6411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6411] write(3, "1000", 4) = 4 [pid 6411] close(3executing program ) = 0 [pid 6411] write(1, "executing program\n", 18) = 18 [pid 6411] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6411] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6411] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6411] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 6412 attached [], 8) = 0 [pid 6411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6413 attached [pid 6412] set_robust_list(0x5555693e0760, 24 [pid 6411] <... clone3 resumed> => {parent_tid=[6413]}, 88) = 6413 [pid 6411] rt_sigprocmask(SIG_SETMASK, [], [pid 6412] <... set_robust_list resumed>) = 0 [pid 6411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6413] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6411] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6342] <... close resumed>) = 0 [pid 6412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6411] <... futex resumed>) = 0 [pid 6413] <... rseq resumed>) = 0 [pid 6411] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6413] set_robust_list(0x7ff7dbc929a0, 24 [pid 6412] <... prctl resumed>) = 0 [pid 6342] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6412] setpgid(0, 0) = 0 [pid 6413] <... set_robust_list resumed>) = 0 [pid 6412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6342] <... futex resumed>) = 1 [pid 6307] <... futex resumed>) = 0 [pid 6413] rt_sigprocmask(SIG_SETMASK, [], [pid 6342] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6413] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6307] exit_group(0 [pid 6413] memfd_create("syzkaller", 0 [pid 6412] <... openat resumed>) = 3 [pid 6342] <... futex resumed>) = ? [pid 6308] <... futex resumed>) = ? [pid 6307] <... exit_group resumed>) = ? [pid 6412] write(3, "1000", 4 [pid 6342] +++ exited with 0 +++ [pid 6308] +++ exited with 0 +++ [pid 6413] <... memfd_create resumed>) = 3 [pid 6413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6307] +++ exited with 0 +++ [pid 6412] <... write resumed>) = 4 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6307, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=92 /* 0.92 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 6412] close(3 [pid 5850] <... restart_syscall resumed>) = 0 [pid 6412] <... close resumed>) = 0 [pid 6412] write(1, "executing program\n", 18 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 executing program [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6414 attached [pid 6412] <... write resumed>) = 18 [pid 6414] set_robust_list(0x5555693e0760, 24 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 6414 [pid 6414] <... set_robust_list resumed>) = 0 [pid 6414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6412] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6412] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 6414] <... prctl resumed>) = 0 [pid 6414] setpgid(0, 0 [pid 6412] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6412] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6414] <... setpgid resumed>) = 0 [pid 6412] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6412] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6412] <... mprotect resumed>) = 0 [pid 6414] <... openat resumed>) = 3 [pid 6412] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6414] write(3, "1000", 4 [pid 6412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6414] <... write resumed>) = 4 ./strace-static-x86_64: Process 6415 attached [pid 6412] <... clone3 resumed> => {parent_tid=[6415]}, 88) = 6415 [pid 6415] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6412] rt_sigprocmask(SIG_SETMASK, [], [pid 6415] <... rseq resumed>) = 0 [pid 6412] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6415] set_robust_list(0x7ff7dbc929a0, 24 [pid 6412] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6415] <... set_robust_list resumed>) = 0 [pid 6412] <... futex resumed>) = 0 [pid 6415] rt_sigprocmask(SIG_SETMASK, [], [pid 6412] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6415] memfd_create("syzkaller", 0 [pid 6414] close(3 [pid 6415] <... memfd_create resumed>) = 3 [pid 6414] <... close resumed>) = 0 [pid 6415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 executing program [pid 6414] write(1, "executing program\n", 18 [pid 6415] <... mmap resumed>) = 0x7ff7d3800000 [pid 6414] <... write resumed>) = 18 [pid 6414] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6414] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6414] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6414] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6414] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6414] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6416 attached => {parent_tid=[6416]}, 88) = 6416 [pid 6414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6416] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6414] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6416] <... rseq resumed>) = 0 [pid 6414] <... futex resumed>) = 0 [pid 6416] set_robust_list(0x7ff7dbc929a0, 24 [pid 6414] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6416] <... set_robust_list resumed>) = 0 [pid 6416] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6416] memfd_create("syzkaller", 0) = 3 [pid 6416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6360] <... close resumed>) = 0 [pid 6360] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6360] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6339] <... futex resumed>) = 0 [pid 6339] exit_group(0) = ? [pid 6343] <... futex resumed>) = ? [pid 6343] +++ exited with 0 +++ [pid 6360] <... futex resumed>) = ? [pid 6360] +++ exited with 0 +++ [pid 6339] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6339, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=97 /* 0.97 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6417 attached executing program [pid 6417] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 6417 [pid 6417] <... set_robust_list resumed>) = 0 [pid 6417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6417] setpgid(0, 0) = 0 [pid 6417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6417] write(3, "1000", 4) = 4 [pid 6417] close(3) = 0 [pid 6417] write(1, "executing program\n", 18) = 18 [pid 6417] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6417] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6417] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6417] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6417] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6417] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6418]}, 88) = 6418 [pid 6417] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6418 attached NULL, 8) = 0 [pid 6417] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6417] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6418] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6418] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6418] memfd_create("syzkaller", 0) = 3 [pid 6418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6410] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6416] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6418] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6415] <... write resumed>) = 16777216 [pid 6415] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6415] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6415] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6410] <... write resumed>) = 16777216 [pid 6415] close(3) = 0 [pid 6410] munmap(0x7ff7d3800000, 138412032 [pid 6415] close(4 [pid 6410] <... munmap resumed>) = 0 [pid 6415] <... close resumed>) = 0 [ 227.088285][ T6415] loop1: detected capacity change from 0 to 32768 [pid 6415] mkdir("./file1", 0777 [pid 6410] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6415] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6410] <... openat resumed>) = 4 [pid 6415] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6410] ioctl(4, LOOP_SET_FD, 3 [pid 6413] <... write resumed>) = 16777216 [pid 6413] munmap(0x7ff7d3800000, 138412032 [pid 6410] <... ioctl resumed>) = 0 [pid 6410] close(3) = 0 [pid 6410] close(4) = 0 [pid 6410] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6410] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6413] <... munmap resumed>) = 0 [ 227.153618][ T6410] loop0: detected capacity change from 0 to 32768 [pid 6413] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6413] ioctl(4, LOOP_SET_FD, 3 [pid 6416] <... write resumed>) = 16777216 [pid 6416] munmap(0x7ff7d3800000, 138412032 [pid 6413] <... ioctl resumed>) = 0 [pid 6416] <... munmap resumed>) = 0 [pid 6413] close(3 [pid 6416] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6413] <... close resumed>) = 0 [pid 6413] close(4 [pid 6416] <... openat resumed>) = 4 [pid 6413] <... close resumed>) = 0 [pid 6413] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6416] ioctl(4, LOOP_SET_FD, 3 [pid 6413] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6416] <... ioctl resumed>) = 0 [pid 6418] <... write resumed>) = 16777216 [pid 6416] close(3) = 0 [pid 6416] close(4) = 0 [pid 6416] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 227.231898][ T6413] loop3: detected capacity change from 0 to 32768 [ 227.269593][ T6416] loop4: detected capacity change from 0 to 32768 [pid 6416] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6418] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6418] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6418] ioctl(4, LOOP_CLR_FD) = 0 [pid 6418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 227.327937][ T6415] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 227.339621][ T6415] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6418] close(4) = 0 [ 227.399327][ T6410] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 227.436499][ T6410] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 227.444867][ T6413] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6418] close(3) = 0 [ 227.472793][ T6413] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 227.488104][ T6416] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 227.497263][ T6416] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6418] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6417] <... futex resumed>) = 0 [pid 6415] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6418] creat("./bus", 000 [pid 6417] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6415] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6417] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6415] <... openat resumed>) = 3 [pid 6415] ioctl(3, LOOP_CLR_FD) = 0 [ 227.528361][ T6415] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6415] close(3 [pid 6417] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6417] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6417] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6417] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6417] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6447]}, 88) = 6447 [pid 6417] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6447 attached NULL, 8) = 0 [pid 6417] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6417] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6447] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6447] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6447] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6447] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6447] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6417] <... futex resumed>) = 0 [pid 6417] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6417] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6447] memfd_create("syzkaller", 0) = 4 [pid 6447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6413] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6413] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6413] ioctl(3, LOOP_CLR_FD) = 0 [ 227.709124][ T6413] bcachefs: bch2_fs_get_tree() error: EINVAL [ 227.749000][ T6416] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6413] close(3 [pid 6416] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6416] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6410] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6416] <... openat resumed>) = 3 [pid 6410] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6416] ioctl(3, LOOP_CLR_FD [pid 6410] <... openat resumed>) = 3 [pid 6410] ioctl(3, LOOP_CLR_FD) = 0 [pid 6410] close(3 [pid 6416] <... ioctl resumed>) = 0 [ 227.770325][ T6410] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6416] close(3 [pid 6415] <... close resumed>) = 0 [pid 6415] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6415] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6412] <... futex resumed>) = 0 [pid 6415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6412] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6415] creat("./bus", 000 [pid 6412] <... futex resumed>) = 0 [pid 6412] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6412] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6412] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6412] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6448]}, 88) = 6448 [pid 6412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6412] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6412] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6448 attached [pid 6448] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6448] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6448] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6448] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6448] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6412] <... futex resumed>) = 0 [pid 6448] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6412] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6412] <... futex resumed>) = 0 [pid 6448] memfd_create("syzkaller", 0 [pid 6412] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6448] <... memfd_create resumed>) = 4 [pid 6448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6418] <... creat resumed>) = 3 [pid 6418] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6418] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6415] <... creat resumed>) = 3 [pid 6415] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6413] <... close resumed>) = 0 [pid 6415] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6413] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6413] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6411] <... futex resumed>) = 0 [pid 6411] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6413] <... futex resumed>) = 0 [pid 6411] <... futex resumed>) = 1 [pid 6413] creat("./bus", 000) = 3 [pid 6411] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6413] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6411] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6413] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6411] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6411] <... futex resumed>) = 0 [pid 6413] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6411] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6416] <... close resumed>) = 0 [pid 6410] <... close resumed>) = 0 [pid 6410] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6416] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6410] <... futex resumed>) = 1 [pid 6409] <... futex resumed>) = 0 [pid 6447] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6416] <... futex resumed>) = 1 [pid 6414] <... futex resumed>) = 0 [pid 6410] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6409] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6414] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6410] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6409] <... futex resumed>) = 0 [pid 6416] creat("./bus", 000 [pid 6414] <... futex resumed>) = 0 [pid 6410] creat("./bus", 000 [pid 6409] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6414] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6411] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6411] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6411] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6409] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6409] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6414] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6409] <... futex resumed>) = 0 [pid 6409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6414] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6411] <... mprotect resumed>) = 0 [pid 6409] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6414] <... futex resumed>) = 0 [pid 6409] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6449 attached [pid 6414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6411] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6409] <... clone3 resumed> => {parent_tid=[6449]}, 88) = 6449 [pid 6414] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6449] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6409] rt_sigprocmask(SIG_SETMASK, [], [pid 6414] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6449] <... rseq resumed>) = 0 [pid 6414] <... mprotect resumed>) = 0 [pid 6409] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6449] set_robust_list(0x7ff7dbc719a0, 24 [pid 6414] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6411] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6409] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6449] <... set_robust_list resumed>) = 0 [pid 6414] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 6409] <... futex resumed>) = 0 [pid 6449] rt_sigprocmask(SIG_SETMASK, [], [pid 6414] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 6409] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6451 attached ./strace-static-x86_64: Process 6450 attached [pid 6449] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6411] <... clone3 resumed> => {parent_tid=[6450]}, 88) = 6450 [pid 6451] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6450] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6449] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6414] <... clone3 resumed> => {parent_tid=[6451]}, 88) = 6451 [pid 6411] rt_sigprocmask(SIG_SETMASK, [], [pid 6451] <... rseq resumed>) = 0 [pid 6450] <... rseq resumed>) = 0 [pid 6449] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6414] rt_sigprocmask(SIG_SETMASK, [], [pid 6411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6451] set_robust_list(0x7ff7dbc719a0, 24 [pid 6450] set_robust_list(0x7ff7dbc719a0, 24 [pid 6449] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6414] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6411] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6451] <... set_robust_list resumed>) = 0 [pid 6450] <... set_robust_list resumed>) = 0 [pid 6449] <... futex resumed>) = 1 [pid 6414] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6411] <... futex resumed>) = 0 [pid 6409] <... futex resumed>) = 0 [pid 6451] rt_sigprocmask(SIG_SETMASK, [], [pid 6450] rt_sigprocmask(SIG_SETMASK, [], [pid 6449] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6414] <... futex resumed>) = 0 [pid 6411] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6409] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6451] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6449] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6414] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6409] <... futex resumed>) = 0 [pid 6451] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6450] memfd_create("syzkaller", 0 [pid 6409] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6451] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6450] <... memfd_create resumed>) = 4 [pid 6451] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6449] memfd_create("syzkaller", 0 [pid 6451] <... futex resumed>) = 1 [pid 6450] <... mmap resumed>) = 0x7ff7d3800000 [pid 6414] <... futex resumed>) = 0 [pid 6414] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6414] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6451] memfd_create("syzkaller", 0 [pid 6449] <... memfd_create resumed>) = 4 [pid 6449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6451] <... memfd_create resumed>) = 4 [pid 6451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6449] <... mmap resumed>) = 0x7ff7d3800000 [pid 6451] <... mmap resumed>) = 0x7ff7d3800000 [pid 6448] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6447] <... write resumed>) = 16777216 [pid 6447] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6447] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6447] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6447] ioctl(5, LOOP_CLR_FD) = 0 [pid 6447] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6447] close(5) = 0 [pid 6447] close(4 [pid 6449] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6450] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6451] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6447] <... close resumed>) = 0 [pid 6448] <... write resumed>) = 16777216 [pid 6447] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6417] <... futex resumed>) = 0 [pid 6447] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6448] munmap(0x7ff7d3800000, 138412032 [pid 6417] exit_group(0) = ? [pid 6418] <... futex resumed>) = ? [pid 6418] +++ exited with 0 +++ [pid 6447] <... futex resumed>) = ? [pid 6448] <... munmap resumed>) = 0 [pid 6448] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 6448] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6448] close(4) = 0 [pid 6448] close(5) = 0 [pid 6448] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 228.978783][ T6448] loop1: detected capacity change from 0 to 32768 [ 229.038161][ T6448] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6448) [pid 6448] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6413] <... write resumed>) = 16776704 [pid 6413] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6413] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6449] <... write resumed>) = 16777216 [pid 6447] +++ exited with 0 +++ [pid 6417] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6417, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=84 /* 0.84 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6449] munmap(0x7ff7d3800000, 138412032 [pid 6450] <... write resumed>) = 16777216 [pid 5845] <... openat resumed>) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6451] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 6452 attached [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 6452 [pid 6451] munmap(0x7ff7d3800000, 138412032 [pid 6452] set_robust_list(0x5555693e0760, 24) = 0 [pid 6452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6452] setpgid(0, 0) = 0 [pid 6452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6449] <... munmap resumed>) = 0 [pid 6452] <... openat resumed>) = 3 [ 229.091698][ T6448] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 229.121247][ T6448] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 6450] munmap(0x7ff7d3800000, 138412032 [pid 6452] write(3, "1000", 4executing program [pid 6451] <... munmap resumed>) = 0 [pid 6449] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6452] <... write resumed>) = 4 [pid 6450] <... munmap resumed>) = 0 [pid 6452] close(3) = 0 [pid 6452] write(1, "executing program\n", 18) = 18 [pid 6449] <... openat resumed>) = 5 [pid 6452] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6449] ioctl(5, LOOP_SET_FD, 4 [pid 6452] <... futex resumed>) = 0 [pid 6452] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6452] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6452] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6450] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6452] <... mprotect resumed>) = 0 [pid 6450] <... openat resumed>) = 5 [pid 6452] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6450] ioctl(5, LOOP_SET_FD, 4 [pid 6452] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6452] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6459 attached => {parent_tid=[6459]}, 88) = 6459 [pid 6451] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6459] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6452] rt_sigprocmask(SIG_SETMASK, [], [pid 6451] <... openat resumed>) = 5 [pid 6459] <... rseq resumed>) = 0 [pid 6452] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6459] set_robust_list(0x7ff7dbc929a0, 24 [pid 6452] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6451] ioctl(5, LOOP_SET_FD, 4 [pid 6459] <... set_robust_list resumed>) = 0 [pid 6452] <... futex resumed>) = 0 [pid 6459] rt_sigprocmask(SIG_SETMASK, [], [pid 6452] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6450] <... ioctl resumed>) = 0 [pid 6459] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6450] close(4 [pid 6459] memfd_create("syzkaller", 0 [pid 6450] <... close resumed>) = 0 [pid 6459] <... memfd_create resumed>) = 3 [pid 6450] close(5 [pid 6449] <... ioctl resumed>) = 0 [pid 6459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6450] <... close resumed>) = 0 [pid 6449] close(4 [pid 6459] <... mmap resumed>) = 0x7ff7d3800000 [pid 6450] mkdir("./bus", 0777 [pid 6449] <... close resumed>) = 0 [pid 6450] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6449] close(5 [pid 6450] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6449] <... close resumed>) = 0 [pid 6451] <... ioctl resumed>) = 0 [pid 6449] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6451] close(4 [pid 6449] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6451] <... close resumed>) = 0 [ 229.201889][ T6449] loop0: detected capacity change from 0 to 32768 [ 229.213204][ T6450] loop3: detected capacity change from 0 to 32768 [ 229.226254][ T6451] loop4: detected capacity change from 0 to 32768 [pid 6451] close(5) = 0 [pid 6451] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 229.258131][ T6450] BTRFS: device /dev/loop3 (7:3) using temp-fsid ac0835ca-ce74-4942-90e5-c427bf293188 [ 229.287998][ T6450] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6450) [pid 6451] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 229.390876][ T6449] BTRFS: device /dev/loop0 (7:0) using temp-fsid e4eb9eda-d387-4087-9e7f-9244a614cf30 [ 229.404168][ T6450] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 229.450453][ T6450] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 229.459722][ T6449] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6449) [ 229.491952][ T6451] BTRFS: device /dev/loop4 (7:4) using temp-fsid c537076f-3f51-47b2-b889-10d859e009c1 [ 229.506207][ T6449] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 229.538100][ T6451] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6451) [ 229.552556][ T6449] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 229.612973][ T6451] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6410] <... creat resumed>) = 3 [pid 6410] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6410] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6416] <... creat resumed>) = 3 [pid 6416] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 229.660726][ T6448] BTRFS info (device loop1): rebuilding free space tree [ 229.662785][ T6451] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 229.681191][ T6450] BTRFS info (device loop3): rebuilding free space tree [ 229.703897][ T6450] BTRFS info (device loop3): disabling free space tree [ 229.728485][ T6450] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 229.742380][ T6450] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 229.754800][ T6449] BTRFS info (device loop0): rebuilding free space tree [ 229.763088][ T6448] BTRFS info (device loop1): disabling free space tree [pid 6416] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6459] <... write resumed>) = 16777216 [ 229.780848][ T6448] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 229.804610][ T6448] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 229.804768][ T6449] BTRFS info (device loop0): disabling free space tree [pid 6459] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6459] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6459] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6459] ioctl(4, LOOP_CLR_FD) = 0 [ 229.870392][ T6451] BTRFS info (device loop4): rebuilding free space tree [ 229.878387][ T6448] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 229.897282][ T6449] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 229.908061][ T6449] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6459] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6459] close(4) = 0 [ 229.917155][ T6451] BTRFS info (device loop4): disabling free space tree [ 229.919004][ T6450] BTRFS info (device loop3): last unmount of filesystem ac0835ca-ce74-4942-90e5-c427bf293188 [ 229.969545][ T6449] BTRFS info (device loop0): last unmount of filesystem e4eb9eda-d387-4087-9e7f-9244a614cf30 [ 229.979878][ T6451] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 229.979913][ T6451] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6459] close(3 [pid 6450] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6450] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6450] ioctl(4, LOOP_CLR_FD) = 0 [pid 6450] close(4) = 0 [pid 6450] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6411] <... futex resumed>) = 0 [pid 6450] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6411] exit_group(0 [pid 6450] <... futex resumed>) = ? [pid 6411] <... exit_group resumed>) = ? [pid 6450] +++ exited with 0 +++ [pid 6413] <... futex resumed>) = ? [pid 6413] +++ exited with 0 +++ [pid 6411] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6411, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=119 /* 1.19 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 6449] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6448] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5847] <... ioctl resumed>) = 0 [pid 6449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6448] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6449] ioctl(4, LOOP_CLR_FD) = 0 [pid 6448] ioctl(4, LOOP_CLR_FD [pid 6449] close(4 [pid 6448] <... ioctl resumed>) = 0 [pid 6448] close(4 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6518 ./strace-static-x86_64: Process 6518 attached [pid 6518] set_robust_list(0x5555693e0760, 24) = 0 [pid 6518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6518] setpgid(0, 0) = 0 [pid 6518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6518] write(3, "1000", 4) = 4 [pid 6518] close(3executing program ) = 0 [pid 6518] write(1, "executing program\n", 18) = 18 [pid 6518] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 230.125859][ T6451] BTRFS info (device loop4): last unmount of filesystem c537076f-3f51-47b2-b889-10d859e009c1 [pid 6518] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6518] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6518] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6518] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6518] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6518] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6519]}, 88) = 6519 [pid 6518] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6518] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6519 attached ) = 0 [pid 6519] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6518] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6519] <... rseq resumed>) = 0 [pid 6519] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6519] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6519] memfd_create("syzkaller", 0) = 3 [pid 6519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6459] <... close resumed>) = 0 [pid 6451] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6451] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6459] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6451] ioctl(4, LOOP_CLR_FD [pid 6459] <... futex resumed>) = 1 [pid 6452] <... futex resumed>) = 0 [pid 6451] <... ioctl resumed>) = 0 [pid 6452] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6459] creat("./bus", 000 [pid 6452] <... futex resumed>) = 0 [pid 6451] close(4 [pid 6452] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6459] <... creat resumed>) = 3 [pid 6459] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6452] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6452] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6452] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6459] <... futex resumed>) = 1 [pid 6459] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6452] <... futex resumed>) = 0 [pid 6452] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=29000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6452] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6448] <... close resumed>) = 0 [pid 6452] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6452] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6449] <... close resumed>) = 0 [pid 6448] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6412] <... futex resumed>) = 0 [pid 6452] <... mprotect resumed>) = 0 [pid 6448] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6412] exit_group(0 [pid 6415] <... futex resumed>) = ? [pid 6412] <... exit_group resumed>) = ? [pid 6448] <... futex resumed>) = ? [pid 6452] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6449] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6448] +++ exited with 0 +++ [pid 6452] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 6449] <... futex resumed>) = 1 [pid 6409] <... futex resumed>) = 0 [pid 6409] exit_group(0) = ? [pid 6410] <... futex resumed>) = ? ./strace-static-x86_64: Process 6520 attached [pid 6415] +++ exited with 0 +++ [pid 6412] +++ exited with 0 +++ [pid 6410] +++ exited with 0 +++ [pid 6520] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6452] <... clone3 resumed> => {parent_tid=[6520]}, 88) = 6520 [pid 6449] +++ exited with 0 +++ [pid 6409] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6412, si_uid=0, si_status=0, si_utime=26 /* 0.26 s */, si_stime=84 /* 0.84 s */} --- [pid 6452] rt_sigprocmask(SIG_SETMASK, [], [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6409, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=92 /* 0.92 s */} --- [pid 6520] <... rseq resumed>) = 0 [pid 6452] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6520] set_robust_list(0x7ff7dbc719a0, 24 [pid 6452] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6520] <... set_robust_list resumed>) = 0 [pid 6520] rt_sigprocmask(SIG_SETMASK, [], [pid 6452] <... futex resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5843] <... openat resumed>) = 3 [pid 6520] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6452] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5844] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 6520] memfd_create("syzkaller", 0 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] close(3 [pid 5844] close(3 [pid 5843] <... close resumed>) = 0 [pid 6520] <... memfd_create resumed>) = 4 [pid 5844] <... close resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6521 attached [pid 6521] set_robust_list(0x5555693e0760, 24) = 0 [pid 6521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 6522 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 6521 ./strace-static-x86_64: Process 6522 attached [pid 6522] set_robust_list(0x5555693e0760, 24 [pid 6521] setpgid(0, 0) = 0 [pid 6521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6521] write(3, "1000", 4) = 4 [pid 6521] close(3) = 0 [pid 6521] write(1, "executing program\n", 18) = 18 [pid 6521] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6521] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6521] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6522] <... set_robust_list resumed>) = 0 [pid 6520] <... mmap resumed>) = 0x7ff7d3800000 [pid 6521] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6521] <... mprotect resumed>) = 0 [pid 6521] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6521] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6523]}, 88) = 6523 [pid 6521] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6521] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6521] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6523 attached [pid 6522] <... prctl resumed>) = 0 [pid 6522] setpgid(0, 0 [pid 6523] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6523] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6523] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6523] memfd_create("syzkaller", 0) = 3 [pid 6523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6522] <... setpgid resumed>) = 0 [pid 6522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6522] write(3, "1000", 4) = 4 [pid 6522] close(3) = 0 executing program [pid 6522] write(1, "executing program\n", 18) = 18 [pid 6522] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6522] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6522] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6522] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6522] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6522] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 6524 attached [pid 6522] <... clone3 resumed> => {parent_tid=[6524]}, 88) = 6524 [pid 6522] rt_sigprocmask(SIG_SETMASK, [], [pid 6524] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6522] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6522] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6522] <... futex resumed>) = 0 [pid 6522] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6524] rt_sigprocmask(SIG_SETMASK, [], [pid 6451] <... close resumed>) = 0 [pid 6524] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6451] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6414] <... futex resumed>) = 0 [pid 6524] memfd_create("syzkaller", 0) = 3 [pid 6414] exit_group(0 [pid 6416] <... futex resumed>) = ? [pid 6414] <... exit_group resumed>) = ? [pid 6416] +++ exited with 0 +++ [pid 6524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6451] +++ exited with 0 +++ [pid 6414] +++ exited with 0 +++ [pid 6524] <... mmap resumed>) = 0x7ff7d3800000 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6414, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=97 /* 0.97 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6525 ./strace-static-x86_64: Process 6525 attached [pid 6525] set_robust_list(0x5555693e0760, 24) = 0 [pid 6525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6525] setpgid(0, 0) = 0 executing program [pid 6525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6525] write(3, "1000", 4) = 4 [pid 6525] close(3) = 0 [pid 6525] write(1, "executing program\n", 18) = 18 [pid 6525] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6525] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6525] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6525] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6525] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6525] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6526 attached [pid 6526] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6525] <... clone3 resumed> => {parent_tid=[6526]}, 88) = 6526 [pid 6525] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6525] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6525] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6526] <... rseq resumed>) = 0 [pid 6526] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6526] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6526] memfd_create("syzkaller", 0) = 3 [pid 6526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6520] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6523] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6524] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6519] <... write resumed>) = 16777216 [pid 6519] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6519] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6519] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6519] close(3) = 0 [pid 6519] close(4) = 0 [pid 6519] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 231.294686][ T6519] loop3: detected capacity change from 0 to 32768 [pid 6519] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 231.511607][ T6519] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6526] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6520] <... write resumed>) = 16777216 [pid 6520] munmap(0x7ff7d3800000, 138412032) = 0 [ 231.556578][ T6519] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6520] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6459] <... write resumed>) = 16776704 [pid 6520] <... openat resumed>) = 5 [pid 6520] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6520] ioctl(5, LOOP_CLR_FD) = 0 [pid 6520] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6520] close(5) = 0 [pid 6520] close(4 [pid 6459] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6459] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6523] <... write resumed>) = 16777216 [pid 6523] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6523] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6523] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6519] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6523] close(3) = 0 [pid 6523] close(4) = 0 [pid 6523] mkdir("./file1", 0777 [pid 6519] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6523] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6523] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6524] <... write resumed>) = 16777216 [pid 6519] <... openat resumed>) = 3 [pid 6524] munmap(0x7ff7d3800000, 138412032 [pid 6519] ioctl(3, LOOP_CLR_FD [pid 6526] <... write resumed>) = 16777216 [pid 6519] <... ioctl resumed>) = 0 [pid 6526] munmap(0x7ff7d3800000, 138412032 [pid 6519] close(3 [pid 6526] <... munmap resumed>) = 0 [ 231.785395][ T6523] loop0: detected capacity change from 0 to 32768 [ 231.811954][ T6519] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6520] <... close resumed>) = 0 [pid 6526] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6524] <... munmap resumed>) = 0 [pid 6524] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6520] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] <... openat resumed>) = 4 [pid 6520] <... futex resumed>) = 1 [pid 6526] <... openat resumed>) = 4 [pid 6524] ioctl(4, LOOP_SET_FD, 3 [pid 6520] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6526] ioctl(4, LOOP_SET_FD, 3 [pid 6452] <... futex resumed>) = 0 [pid 6526] <... ioctl resumed>) = 0 [pid 6452] exit_group(0) = ? [pid 6526] close(3 [pid 6524] <... ioctl resumed>) = 0 [pid 6520] <... futex resumed>) = ? [pid 6459] <... futex resumed>) = ? [pid 6520] +++ exited with 0 +++ [pid 6459] +++ exited with 0 +++ [pid 6524] close(3) = 0 [pid 6526] <... close resumed>) = 0 [ 231.882476][ T6524] loop1: detected capacity change from 0 to 32768 [ 231.890443][ T6526] loop4: detected capacity change from 0 to 32768 [pid 6526] close(4 [pid 6524] close(4) = 0 [pid 6526] <... close resumed>) = 0 [pid 6526] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6524] mkdir("./file1", 0777 [pid 6526] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6524] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6524] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6452] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6452, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=106 /* 1.06 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6519] <... close resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6519] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6518] <... futex resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6519] creat("./bus", 000 [pid 6518] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... openat resumed>) = 3 [pid 6518] <... futex resumed>) = 0 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 6518] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5845] <... ioctl resumed>) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6548 attached , child_tidptr=0x5555693e0750) = 6548 [ 231.964759][ T6523] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 231.994263][ T6523] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6548] set_robust_list(0x5555693e0760, 24) = 0 [pid 6548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6548] setpgid(0, 0) = 0 [pid 6548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6548] write(3, "1000", 4) = 4 [pid 6548] close(3executing program [pid 6518] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6518] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6518] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6518] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6518] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6518] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6552]}, 88) = 6552 [pid 6518] rt_sigprocmask(SIG_SETMASK, [], [pid 6548] <... close resumed>) = 0 [pid 6548] write(1, "executing program\n", 18) = 18 [pid 6548] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6518] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 6552 attached [pid 6518] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6518] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6548] <... futex resumed>) = 0 [pid 6548] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6552] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6548] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6552] <... rseq resumed>) = 0 [pid 6548] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6552] set_robust_list(0x7ff7dbc719a0, 24 [pid 6548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6552] <... set_robust_list resumed>) = 0 [pid 6552] rt_sigprocmask(SIG_SETMASK, [], [pid 6548] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6552] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6552] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6548] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6552] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6552] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6548] <... mprotect resumed>) = 0 [pid 6518] <... futex resumed>) = 0 [pid 6518] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6548] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6518] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6548] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6548] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6554 attached [pid 6552] memfd_create("syzkaller", 0 [pid 6554] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6548] <... clone3 resumed> => {parent_tid=[6554]}, 88) = 6554 [pid 6554] <... rseq resumed>) = 0 [pid 6548] rt_sigprocmask(SIG_SETMASK, [], [pid 6554] set_robust_list(0x7ff7dbc929a0, 24 [pid 6548] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6554] <... set_robust_list resumed>) = 0 [pid 6548] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6554] rt_sigprocmask(SIG_SETMASK, [], [pid 6548] <... futex resumed>) = 0 [pid 6554] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6548] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6554] memfd_create("syzkaller", 0 [pid 6552] <... memfd_create resumed>) = 4 [pid 6552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6554] <... memfd_create resumed>) = 3 [pid 6552] <... mmap resumed>) = 0x7ff7d3800000 [pid 6554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 232.104265][ T6524] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 232.115864][ T6524] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6519] <... creat resumed>) = 3 [pid 6519] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 232.210249][ T6526] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 232.249707][ T6526] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6519] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6524] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6524] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 6524] ioctl(3, LOOP_CLR_FD) = 0 [ 232.291480][ T6524] bcachefs: bch2_fs_get_tree() error: EINVAL [ 232.329606][ T6523] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6524] close(3 [pid 6523] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6523] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6523] ioctl(3, LOOP_CLR_FD) = 0 [pid 6523] close(3 [pid 6526] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6526] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 6526] ioctl(3, LOOP_CLR_FD) = 0 [ 232.443422][ T6526] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6526] close(3 [pid 6552] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6554] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6524] <... close resumed>) = 0 [pid 6524] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6522] <... futex resumed>) = 0 [pid 6524] creat("./bus", 000 [pid 6522] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] <... creat resumed>) = 3 [pid 6522] <... futex resumed>) = 0 [pid 6524] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6524] <... futex resumed>) = 0 [pid 6522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6524] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6522] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6522] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6523] <... close resumed>) = 0 [pid 6523] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6523] creat("./bus", 000 [pid 6521] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6521] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] <... close resumed>) = 0 [pid 6526] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6526] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6525] <... futex resumed>) = 0 [pid 6522] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6522] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 6522] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6522] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6522] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6522] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6558 attached => {parent_tid=[6558]}, 88) = 6558 [pid 6522] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6558] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6522] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6558] <... rseq resumed>) = 0 [pid 6525] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] <... futex resumed>) = 0 [pid 6558] set_robust_list(0x7ff7dbc719a0, 24 [pid 6526] <... futex resumed>) = 0 [pid 6525] <... futex resumed>) = 1 [pid 6522] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6558] <... set_robust_list resumed>) = 0 [pid 6526] creat("./bus", 000 [pid 6525] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6558] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6558] memfd_create("syzkaller", 0) = 4 [pid 6558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6521] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6521] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6521] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6521] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6521] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6559 attached [pid 6559] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6521] <... clone3 resumed> => {parent_tid=[6559]}, 88) = 6559 [pid 6559] <... rseq resumed>) = 0 [pid 6521] rt_sigprocmask(SIG_SETMASK, [], [pid 6559] set_robust_list(0x7ff7dbc719a0, 24 [pid 6521] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6559] <... set_robust_list resumed>) = 0 [pid 6521] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] rt_sigprocmask(SIG_SETMASK, [], [pid 6521] <... futex resumed>) = 0 [pid 6559] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6521] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6559] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6559] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6559] <... futex resumed>) = 1 [pid 6525] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6521] <... futex resumed>) = 0 [pid 6559] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6525] <... futex resumed>) = 0 [pid 6521] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6521] <... futex resumed>) = 0 [pid 6559] memfd_create("syzkaller", 0 [pid 6525] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6521] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6559] <... memfd_create resumed>) = 4 [pid 6525] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6525] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6525] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6560 attached [pid 6559] <... mmap resumed>) = 0x7ff7d3800000 [pid 6525] <... clone3 resumed> => {parent_tid=[6560]}, 88) = 6560 [pid 6560] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6525] rt_sigprocmask(SIG_SETMASK, [], [pid 6560] set_robust_list(0x7ff7dbc719a0, 24 [pid 6525] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6560] <... set_robust_list resumed>) = 0 [pid 6525] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6560] rt_sigprocmask(SIG_SETMASK, [], [pid 6525] <... futex resumed>) = 0 [pid 6560] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6525] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6560] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6560] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6525] <... futex resumed>) = 0 [pid 6560] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6525] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6525] <... futex resumed>) = 0 [pid 6525] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6560] memfd_create("syzkaller", 0) = 4 [pid 6560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6552] <... write resumed>) = 16777216 [pid 6552] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6552] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 6552] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6552] close(4) = 0 [pid 6552] close(5) = 0 [pid 6552] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 233.058409][ T6552] loop3: detected capacity change from 0 to 32768 [ 233.091978][ T6552] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6552) [pid 6552] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6554] <... write resumed>) = 16777216 [pid 6554] munmap(0x7ff7d3800000, 138412032 [pid 6558] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6554] <... munmap resumed>) = 0 [pid 6554] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 233.165000][ T6552] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 233.202280][ T6552] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 6554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6554] ioctl(4, LOOP_CLR_FD) = 0 [pid 6554] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6554] close(4) = 0 [pid 6554] close(3 [pid 6559] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 233.387904][ T6552] BTRFS info (device loop3): rebuilding free space tree [pid 6560] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6524] <... write resumed>) = 16776704 [pid 6524] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 233.499235][ T6552] BTRFS info (device loop3): disabling free space tree [ 233.506223][ T6552] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6524] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6554] <... close resumed>) = 0 [pid 6554] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6554] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6548] <... futex resumed>) = 0 [pid 6548] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6554] <... futex resumed>) = 0 [pid 6554] creat("./bus", 000 [ 233.567856][ T6552] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6548] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6548] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6548] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6548] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6548] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6577]}, 88) = 6577 [pid 6548] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 6577 attached [pid 6548] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6548] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6577] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6577] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6577] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6577] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6548] <... futex resumed>) = 0 [pid 6577] memfd_create("syzkaller", 0 [pid 6548] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... memfd_create resumed>) = 4 [pid 6548] <... futex resumed>) = 0 [pid 6577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6548] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6577] <... mmap resumed>) = 0x7ff7d3800000 [pid 6558] <... write resumed>) = 16777216 [pid 6558] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6558] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 6558] ioctl(5, LOOP_SET_FD, 4 [pid 6560] <... write resumed>) = 16777216 [pid 6558] <... ioctl resumed>) = 0 [pid 6554] <... creat resumed>) = 3 [pid 6526] <... creat resumed>) = 3 [pid 6523] <... creat resumed>) = 3 [pid 6526] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6560] munmap(0x7ff7d3800000, 138412032 [pid 6558] close(4 [pid 6554] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] <... futex resumed>) = 0 [pid 6523] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6558] <... close resumed>) = 0 [pid 6554] <... futex resumed>) = 0 [pid 6526] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6523] <... futex resumed>) = 0 [pid 6523] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6558] close(5 [pid 6554] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6560] <... munmap resumed>) = 0 [pid 6558] <... close resumed>) = 0 [pid 6558] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6560] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 6559] <... write resumed>) = 16777216 [ 233.793304][ T6558] loop1: detected capacity change from 0 to 32768 [ 233.816678][ T6552] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6558] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6560] ioctl(5, LOOP_SET_FD, 4 [pid 6559] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6560] <... ioctl resumed>) = 0 [ 233.874138][ T6560] loop4: detected capacity change from 0 to 32768 [ 233.891841][ T6558] BTRFS: device /dev/loop1 (7:1) using temp-fsid e27e2f4d-4875-4932-bc1d-f7ec73648932 [pid 6560] close(4) = 0 [pid 6559] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6560] close(5 [pid 6559] <... openat resumed>) = 5 [pid 6560] <... close resumed>) = 0 [pid 6559] ioctl(5, LOOP_SET_FD, 4 [pid 6560] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6560] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6559] <... ioctl resumed>) = 0 [pid 6559] close(4) = 0 [ 233.919166][ T6558] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6558) [ 233.938580][ T6559] loop0: detected capacity change from 0 to 32768 [pid 6559] close(5) = 0 [pid 6559] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6559] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6552] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6552] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6552] ioctl(4, LOOP_CLR_FD) = 0 [ 233.970416][ T6558] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 233.970974][ T6560] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6560) [ 233.992607][ T6558] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 234.070156][ T6559] BTRFS: device /dev/loop0 (7:0) using temp-fsid cb3e04a2-f493-4016-b3dc-0f47ba747fbf [ 234.083616][ T6560] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 234.105140][ T6559] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6559) [pid 6552] close(4 [ 234.119347][ T6560] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 234.173537][ T6559] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 234.248129][ T6559] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 234.300830][ T6558] BTRFS info (device loop1): rebuilding free space tree [ 234.382957][ T6558] BTRFS info (device loop1): disabling free space tree [pid 6577] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 6552] <... close resumed>) = 0 [pid 6577] munmap(0x7ff7d3800000, 138412032 [pid 6552] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6518] <... futex resumed>) = 0 [pid 6552] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6518] exit_group(0 [pid 6552] <... futex resumed>) = ? [pid 6519] <... futex resumed>) = ? [pid 6518] <... exit_group resumed>) = ? [pid 6552] +++ exited with 0 +++ [pid 6519] +++ exited with 0 +++ [pid 6518] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6518, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=106 /* 1.06 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 6577] <... munmap resumed>) = 0 [ 234.428958][ T6558] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6619 attached [pid 6577] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6619] set_robust_list(0x5555693e0760, 24 [pid 6577] <... openat resumed>) = 5 [pid 6619] <... set_robust_list resumed>) = 0 [pid 6577] ioctl(5, LOOP_SET_FD, 4 [pid 6619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6577] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6619] setpgid(0, 0 [pid 6577] ioctl(5, LOOP_CLR_FD [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 6619 [pid 6619] <... setpgid resumed>) = 0 [pid 6577] <... ioctl resumed>) = 0 [pid 6619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6619] write(3, "1000", 4executing program ) = 4 [pid 6619] close(3 [pid 6577] ioctl(5, LOOP_SET_FD, 4 [pid 6619] <... close resumed>) = 0 [pid 6619] write(1, "executing program\n", 18 [pid 6577] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6619] <... write resumed>) = 18 [pid 6577] close(5 [pid 6619] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... close resumed>) = 0 [pid 6619] <... futex resumed>) = 0 [ 234.469526][ T6558] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6577] close(4 [pid 6619] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6619] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6619] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6619] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6619] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6627 attached => {parent_tid=[6627]}, 88) = 6627 [pid 6619] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6619] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 234.516504][ T6560] BTRFS info (device loop4): rebuilding free space tree [ 234.539440][ T6559] BTRFS info (device loop0): rebuilding free space tree [ 234.547473][ T6558] BTRFS info (device loop1): last unmount of filesystem e27e2f4d-4875-4932-bc1d-f7ec73648932 [pid 6619] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6627] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6627] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6627] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6627] memfd_create("syzkaller", 0) = 3 [pid 6627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 234.566387][ T6560] BTRFS info (device loop4): disabling free space tree [ 234.571366][ T6559] BTRFS info (device loop0): disabling free space tree [ 234.581701][ T6559] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 234.591909][ T6559] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 234.609765][ T6559] BTRFS info (device loop0): last unmount of filesystem cb3e04a2-f493-4016-b3dc-0f47ba747fbf [ 234.618865][ T6560] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6559] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6559] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6559] ioctl(4, LOOP_CLR_FD) = 0 [pid 6559] close(4) = 0 [ 234.680307][ T6560] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6559] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6558] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6521] <... futex resumed>) = 0 [pid 6559] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6521] exit_group(0) = ? [pid 6559] <... futex resumed>) = ? [pid 6559] +++ exited with 0 +++ [pid 6523] <... futex resumed>) = ? [pid 6523] +++ exited with 0 +++ [pid 6521] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6521, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=91 /* 0.91 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6558] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 5843] close(3) = 0 [pid 6558] <... openat resumed>) = 4 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6628 ./strace-static-x86_64: Process 6628 attached [pid 6628] set_robust_list(0x5555693e0760, 24 [pid 6558] ioctl(4, LOOP_CLR_FD [pid 6628] <... set_robust_list resumed>) = 0 [pid 6558] <... ioctl resumed>) = 0 [pid 6628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6558] close(4 [pid 6628] setpgid(0, 0) = 0 [pid 6628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6628] write(3, "1000", 4 [pid 6577] <... close resumed>) = 0 [pid 6628] <... write resumed>) = 4 [pid 6628] close(3) = 0 executing program [pid 6628] write(1, "executing program\n", 18) = 18 [ 234.763159][ T6560] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6628] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6628] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6628] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6577] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6577] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6548] <... futex resumed>) = 0 [pid 6548] exit_group(0) = ? [pid 6577] <... futex resumed>) = ? [pid 6554] <... futex resumed>) = ? [pid 6577] +++ exited with 0 +++ [pid 6554] +++ exited with 0 +++ [pid 6548] +++ exited with 0 +++ [pid 6628] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6548, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=65 /* 0.65 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 6628] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5845] close(3 [pid 6628] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5845] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6628] <... rt_sigprocmask resumed>[], 8) = 0 executing program ./strace-static-x86_64: Process 6629 attached [pid 6628] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6629] set_robust_list(0x5555693e0760, 24) = 0 [pid 6629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6629] setpgid(0, 0./strace-static-x86_64: Process 6630 attached ) = 0 [pid 6629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6630] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6630] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6630] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] <... clone3 resumed> => {parent_tid=[6630]}, 88) = 6630 [pid 6629] write(3, "1000", 4) = 4 [pid 6629] close(3) = 0 [pid 6629] write(1, "executing program\n", 18) = 18 [pid 6629] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6629] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6629] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6629] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6628] rt_sigprocmask(SIG_SETMASK, [], [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 6629 [pid 6628] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6629] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6628] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6629] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6631]}, 88) = 6631 ./strace-static-x86_64: Process 6631 attached [pid 6628] <... futex resumed>) = 1 [pid 6560] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6628] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6631] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6631] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6631] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6629] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6631] <... futex resumed>) = 0 [pid 6629] <... futex resumed>) = 1 [pid 6631] memfd_create("syzkaller", 0) = 3 [pid 6631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6630] <... futex resumed>) = 0 [pid 6629] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6630] memfd_create("syzkaller", 0 [pid 6560] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6630] <... memfd_create resumed>) = 3 [pid 6560] <... openat resumed>) = 4 [pid 6630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6560] ioctl(4, LOOP_CLR_FD [pid 6630] <... mmap resumed>) = 0x7ff7d3800000 [pid 6560] <... ioctl resumed>) = 0 [pid 6560] close(4 [pid 6627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6558] <... close resumed>) = 0 [pid 6558] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6558] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6522] <... futex resumed>) = 0 [pid 6522] exit_group(0) = ? [pid 6558] <... futex resumed>) = ? [pid 6524] <... futex resumed>) = ? [pid 6524] +++ exited with 0 +++ [pid 6558] +++ exited with 0 +++ [pid 6522] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6522, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=120 /* 1.20 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6632 ./strace-static-x86_64: Process 6632 attached [pid 6632] set_robust_list(0x5555693e0760, 24) = 0 [pid 6632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6632] setpgid(0, 0) = 0 [pid 6632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6632] write(3, "1000", 4) = 4 [pid 6632] close(3) = 0 [pid 6632] write(1, "executing program\n", 18executing program ) = 18 [pid 6632] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6632] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6632] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6632] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6632] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6632] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6633]}, 88) = 6633 [pid 6632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6632] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6633 attached ) = 0 [pid 6560] <... close resumed>) = 0 [pid 6632] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6560] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6633] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6525] <... futex resumed>) = 0 [pid 6633] <... rseq resumed>) = 0 [pid 6525] exit_group(0 [pid 6633] set_robust_list(0x7ff7dbc929a0, 24 [pid 6526] <... futex resumed>) = ? [pid 6525] <... exit_group resumed>) = ? [pid 6633] <... set_robust_list resumed>) = 0 [pid 6526] +++ exited with 0 +++ [pid 6633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6633] memfd_create("syzkaller", 0 [pid 6560] +++ exited with 0 +++ [pid 6525] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6525, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=86 /* 0.86 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 6633] <... memfd_create resumed>) = 3 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6634 attached [pid 6634] set_robust_list(0x5555693e0760, 24 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 6634 [pid 6634] <... set_robust_list resumed>) = 0 [pid 6634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6634] setpgid(0, 0) = 0 [pid 6634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program ) = 0x7ff7d3800000 [pid 6634] <... openat resumed>) = 3 [pid 6634] write(3, "1000", 4) = 4 [pid 6634] close(3) = 0 [pid 6634] write(1, "executing program\n", 18) = 18 [pid 6634] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6634] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6634] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6634] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6634] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6635 attached => {parent_tid=[6635]}, 88) = 6635 [pid 6634] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6634] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6635] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6634] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6635] <... rseq resumed>) = 0 [pid 6635] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6635] memfd_create("syzkaller", 0) = 3 [pid 6635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6630] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6627] <... write resumed>) = 16777216 [pid 6627] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6627] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6627] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6627] close(3) = 0 [pid 6627] close(4) = 0 [pid 6627] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 235.638551][ T6627] loop3: detected capacity change from 0 to 32768 [pid 6627] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6633] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6631] <... write resumed>) = 16777216 [pid 6631] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6631] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6631] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6631] ioctl(4, LOOP_CLR_FD) = 0 [pid 6631] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6631] close(4) = 0 [ 235.837313][ T6627] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6630] <... write resumed>) = 16777216 [pid 6631] close(3 [pid 6630] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 235.882566][ T6627] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 235.934259][ T6630] loop0: detected capacity change from 0 to 32768 [pid 6630] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6630] close(3) = 0 [pid 6630] close(4) = 0 [pid 6630] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6630] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6631] <... close resumed>) = 0 [pid 6631] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6629] <... futex resumed>) = 0 [pid 6631] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6629] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6629] <... futex resumed>) = 0 [pid 6631] creat("./bus", 000 [pid 6629] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6631] <... creat resumed>) = 3 [pid 6631] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6629] <... futex resumed>) = 0 [pid 6631] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6629] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6629] <... futex resumed>) = 0 [pid 6631] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6629] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6629] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6629] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6629] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6629] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6650 attached => {parent_tid=[6650]}, 88) = 6650 [pid 6650] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6629] rt_sigprocmask(SIG_SETMASK, [], [pid 6650] <... rseq resumed>) = 0 [pid 6629] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6650] set_robust_list(0x7ff7dbc719a0, 24 [pid 6629] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] <... set_robust_list resumed>) = 0 [pid 6629] <... futex resumed>) = 0 [pid 6650] rt_sigprocmask(SIG_SETMASK, [], [pid 6629] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6650] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6650] memfd_create("syzkaller", 0) = 4 [pid 6650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6633] <... write resumed>) = 16777216 [pid 6650] <... mmap resumed>) = 0x7ff7d3800000 [ 236.113248][ T6630] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 236.148168][ T6627] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6633] munmap(0x7ff7d3800000, 138412032 [pid 6627] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6627] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6627] ioctl(3, LOOP_CLR_FD) = 0 [ 236.158114][ T6630] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6627] close(3 [pid 6633] <... munmap resumed>) = 0 [pid 6633] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6633] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6633] close(3) = 0 [pid 6633] close(4) = 0 [pid 6633] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 236.219443][ T6633] loop1: detected capacity change from 0 to 32768 [pid 6633] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6635] <... write resumed>) = 16777216 [ 236.361255][ T6633] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 236.370559][ T6633] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6635] munmap(0x7ff7d3800000, 138412032 [pid 6627] <... close resumed>) = 0 [pid 6627] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6619] <... futex resumed>) = 0 [pid 6627] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6619] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] <... futex resumed>) = 0 [pid 6619] <... futex resumed>) = 1 [pid 6627] creat("./bus", 000 [pid 6619] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6630] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6630] ioctl(3, LOOP_CLR_FD) = 0 [pid 6630] close(3 [pid 6635] <... munmap resumed>) = 0 [pid 6635] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 236.445714][ T6630] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6635] ioctl(4, LOOP_SET_FD, 3 [pid 6619] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6619] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6619] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6619] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6619] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6658]}, 88) = 6658 ./strace-static-x86_64: Process 6658 attached [pid 6619] rt_sigprocmask(SIG_SETMASK, [], [pid 6658] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6619] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6658] <... rseq resumed>) = 0 [pid 6619] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] set_robust_list(0x7ff7dbc719a0, 24 [pid 6619] <... futex resumed>) = 0 [pid 6658] <... set_robust_list resumed>) = 0 [pid 6619] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6635] <... ioctl resumed>) = 0 [pid 6658] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6635] close(3 [pid 6658] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6635] <... close resumed>) = 0 [pid 6658] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] close(4 [pid 6658] <... futex resumed>) = 1 [pid 6635] <... close resumed>) = 0 [pid 6619] <... futex resumed>) = 0 [pid 6635] mkdir("./file1", 0777 [pid 6619] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6619] <... futex resumed>) = 0 [pid 6619] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6658] memfd_create("syzkaller", 0 [pid 6635] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6658] <... memfd_create resumed>) = 4 [ 236.494332][ T6635] loop4: detected capacity change from 0 to 32768 [pid 6658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6650] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6658] <... mmap resumed>) = 0x7ff7d3800000 [pid 6633] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 236.663245][ T6635] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 236.673477][ T6633] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6633] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 6633] ioctl(3, LOOP_CLR_FD) = 0 [ 236.708307][ T6635] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6633] close(3 [pid 6630] <... close resumed>) = 0 [pid 6630] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6628] <... futex resumed>) = 0 [pid 6628] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6628] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6630] creat("./bus", 000 [pid 6628] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6628] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 6628] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6628] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6628] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6666 attached [pid 6666] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6635] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6666] <... rseq resumed>) = 0 [pid 6635] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6666] set_robust_list(0x7ff7dbc719a0, 24 [pid 6635] <... openat resumed>) = 3 [pid 6666] <... set_robust_list resumed>) = 0 [pid 6635] ioctl(3, LOOP_CLR_FD [pid 6666] rt_sigprocmask(SIG_SETMASK, [], [pid 6635] <... ioctl resumed>) = 0 [pid 6628] <... clone3 resumed> => {parent_tid=[6666]}, 88) = 6666 [pid 6666] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6635] close(3 [pid 6628] rt_sigprocmask(SIG_SETMASK, [], [pid 6666] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6628] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6628] <... futex resumed>) = 0 [pid 6666] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6628] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6666] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6666] <... futex resumed>) = 0 [pid 6628] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [ 236.896673][ T6635] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6666] memfd_create("syzkaller", 0 [pid 6628] <... futex resumed>) = 0 [pid 6666] <... memfd_create resumed>) = 4 [pid 6628] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6658] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6633] <... close resumed>) = 0 [pid 6633] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6633] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6633] <... futex resumed>) = 0 [pid 6632] <... futex resumed>) = 1 [pid 6632] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6633] creat("./bus", 000 [pid 6632] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6632] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6632] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6632] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6632] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6667 attached => {parent_tid=[6667]}, 88) = 6667 [pid 6632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6632] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6632] <... futex resumed>) = 0 [pid 6667] <... rseq resumed>) = 0 [pid 6650] <... write resumed>) = 16777216 [pid 6632] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] set_robust_list(0x7ff7dbc719a0, 24 [pid 6650] munmap(0x7ff7d3800000, 138412032 [pid 6667] <... set_robust_list resumed>) = 0 [pid 6667] rt_sigprocmask(SIG_SETMASK, [], [pid 6650] <... munmap resumed>) = 0 [pid 6667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6667] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6667] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6667] <... futex resumed>) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6667] memfd_create("syzkaller", 0 [pid 6650] <... openat resumed>) = 5 [pid 6635] <... close resumed>) = 0 [pid 6632] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6632] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6667] <... memfd_create resumed>) = 4 [pid 6650] ioctl(5, LOOP_SET_FD, 4 [pid 6635] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6650] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6650] ioctl(5, LOOP_CLR_FD [pid 6667] <... mmap resumed>) = 0x7ff7d3800000 [pid 6650] <... ioctl resumed>) = 0 [pid 6635] <... futex resumed>) = 1 [pid 6634] <... futex resumed>) = 0 [pid 6635] creat("./bus", 000 [pid 6634] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6634] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6650] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6650] close(5) = 0 [pid 6650] close(4 [pid 6634] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6634] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6634] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6634] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6668]}, 88) = 6668 ./strace-static-x86_64: Process 6668 attached [pid 6668] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6634] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6634] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6634] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6668] <... rseq resumed>) = 0 [pid 6668] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6668] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6668] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6634] <... futex resumed>) = 0 [pid 6668] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6634] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6634] <... futex resumed>) = 0 [pid 6634] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6668] memfd_create("syzkaller", 0) = 4 [pid 6668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6631] <... write resumed>) = 16776704 [pid 6668] <... mmap resumed>) = 0x7ff7d3800000 [pid 6631] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6631] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6666] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6650] <... close resumed>) = 0 [pid 6658] <... write resumed>) = 16777216 [pid 6650] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6629] <... futex resumed>) = 0 [pid 6650] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6629] exit_group(0 [pid 6650] <... futex resumed>) = ? [pid 6631] <... futex resumed>) = ? [pid 6629] <... exit_group resumed>) = ? [pid 6658] munmap(0x7ff7d3800000, 138412032 [pid 6650] +++ exited with 0 +++ [pid 6631] +++ exited with 0 +++ [pid 6629] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6629, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=99 /* 0.99 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6669 ./strace-static-x86_64: Process 6669 attached [pid 6669] set_robust_list(0x5555693e0760, 24) = 0 [pid 6669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6669] setpgid(0, 0) = 0 [pid 6658] <... munmap resumed>) = 0 [pid 6669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6658] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6669] write(3, "1000", 4) = 4 [pid 6658] <... openat resumed>) = 5 [pid 6669] close(3 [pid 6658] ioctl(5, LOOP_SET_FD, 4 [pid 6669] <... close resumed>) = 0 [pid 6669] write(1, "executing program\n", 18 [pid 6658] <... ioctl resumed>) = 0 executing program [pid 6669] <... write resumed>) = 18 [pid 6669] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6669] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6669] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6669] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6667] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6669] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6658] close(4) = 0 [pid 6658] close(5) = 0 [pid 6658] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 237.619822][ T6658] loop3: detected capacity change from 0 to 32768 [pid 6658] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache,"./strace-static-x86_64: Process 6670 attached [pid 6669] <... clone3 resumed> => {parent_tid=[6670]}, 88) = 6670 [pid 6669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6670] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6670] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6670] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6669] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6669] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6670] memfd_create("syzkaller", 0) = 3 [pid 6670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 237.657966][ T6658] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6658) [ 237.732197][ T6658] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 237.754573][ T6658] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 6668] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6633] <... creat resumed>) = 3 [pid 6630] <... creat resumed>) = 3 [pid 6633] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6630] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6633] <... futex resumed>) = 0 [pid 6630] <... futex resumed>) = 0 [pid 6633] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6630] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6627] <... creat resumed>) = 3 [pid 6635] <... creat resumed>) = 3 [pid 6635] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6635] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6627] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 237.869337][ T6658] BTRFS info (device loop3): rebuilding free space tree [ 237.928602][ T6658] BTRFS info (device loop3): disabling free space tree [ 237.935677][ T6658] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6627] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] <... write resumed>) = 16777216 [pid 6668] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6666] <... write resumed>) = 16777216 [ 238.007791][ T6658] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 238.046538][ T6658] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6668] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6666] munmap(0x7ff7d3800000, 138412032 [pid 6668] <... openat resumed>) = 5 [pid 6668] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6668] close(4) = 0 [pid 6668] close(5) = 0 [pid 6668] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6668] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6666] <... munmap resumed>) = 0 [ 238.068927][ T6668] loop4: detected capacity change from 0 to 32768 [ 238.109101][ T6668] BTRFS: device /dev/loop4 (7:4) using temp-fsid 4d3b25c6-190f-4ced-9aae-741bc4528baa [pid 6666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 6666] ioctl(5, LOOP_SET_FD, 4 [pid 6667] <... write resumed>) = 16777216 [pid 6666] <... ioctl resumed>) = 0 [pid 6666] close(4) = 0 [ 238.131714][ T6666] loop0: detected capacity change from 0 to 32768 [ 238.143237][ T6668] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6668) [pid 6670] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6666] close(5 [pid 6667] munmap(0x7ff7d3800000, 138412032 [pid 6666] <... close resumed>) = 0 [pid 6666] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6667] <... munmap resumed>) = 0 [pid 6667] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 6667] ioctl(5, LOOP_SET_FD, 4 [ 238.207939][ T6668] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 238.235115][ T6667] loop1: detected capacity change from 0 to 32768 [ 238.242315][ T6666] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6666) [pid 6666] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6667] <... ioctl resumed>) = 0 [pid 6667] close(4) = 0 [pid 6667] close(5) = 0 [pid 6667] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6667] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6658] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6658] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6658] ioctl(4, LOOP_CLR_FD) = 0 [pid 6658] close(4) = 0 [pid 6658] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6658] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6619] <... futex resumed>) = 0 [ 238.248588][ T6668] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 6619] exit_group(0 [pid 6658] <... futex resumed>) = ? [pid 6627] <... futex resumed>) = ? [pid 6619] <... exit_group resumed>) = ? [pid 6658] +++ exited with 0 +++ [pid 6627] +++ exited with 0 +++ [pid 6619] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6619, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=87 /* 0.87 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = 0 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6691 attached , child_tidptr=0x5555693e0750) = 6691 [ 238.315164][ T6667] BTRFS: device /dev/loop1 (7:1) using temp-fsid 4cf7ae3b-ea03-4198-8af7-15662014c79f [ 238.350129][ T6666] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6691] set_robust_list(0x5555693e0760, 24) = 0 [pid 6691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6691] setpgid(0, 0) = 0 [pid 6691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6691] write(3, "1000", 4) = 4 [pid 6691] close(3) = 0 [pid 6691] write(1, "executing program\n", 18) = 18 [pid 6691] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6691] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6691] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6691] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6691] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6691] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6695 attached => {parent_tid=[6695]}, 88) = 6695 [pid 6691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6691] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6691] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6695] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6695] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6695] memfd_create("syzkaller", 0) = 3 [pid 6695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 238.377950][ T6666] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 238.393912][ T6667] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6667) [ 238.498177][ T6667] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 238.552532][ T6667] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 238.640724][ T6668] BTRFS info (device loop4): rebuilding free space tree [ 238.688571][ T6666] BTRFS info (device loop0): rebuilding free space tree [ 238.741028][ T6668] BTRFS info (device loop4): disabling free space tree [ 238.788048][ T6666] BTRFS info (device loop0): disabling free space tree [ 238.795027][ T6666] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 238.805021][ T6666] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 238.806130][ T6668] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 238.837597][ T6668] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 238.863069][ T6667] BTRFS info (device loop1): rebuilding free space tree [ 238.863273][ T6666] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 238.903488][ T6668] BTRFS info (device loop4): last unmount of filesystem 4d3b25c6-190f-4ced-9aae-741bc4528baa [ 238.936956][ T6667] BTRFS info (device loop1): disabling free space tree [pid 6666] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6666] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6695] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6666] <... openat resumed>) = 4 [pid 6666] ioctl(4, LOOP_CLR_FD [pid 6670] <... write resumed>) = 16777216 [pid 6666] <... ioctl resumed>) = 0 [pid 6670] munmap(0x7ff7d3800000, 138412032 [pid 6666] close(4) = 0 [pid 6666] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6666] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] <... futex resumed>) = 0 [pid 6628] exit_group(0 [pid 6630] <... futex resumed>) = ? [pid 6628] <... exit_group resumed>) = ? [pid 6666] <... futex resumed>) = ? [pid 6666] +++ exited with 0 +++ [pid 6630] +++ exited with 0 +++ [pid 6628] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6628, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=76 /* 0.76 s */} --- [pid 6668] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6668] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6668] <... openat resumed>) = 4 [pid 5843] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6738 attached , child_tidptr=0x5555693e0750) = 6738 [pid 6738] set_robust_list(0x5555693e0760, 24 [pid 6668] ioctl(4, LOOP_CLR_FD [pid 6738] <... set_robust_list resumed>) = 0 [pid 6670] <... munmap resumed>) = 0 [pid 6668] <... ioctl resumed>) = 0 [pid 6738] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6668] close(4 [pid 6738] <... prctl resumed>) = 0 [ 238.950800][ T6667] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 238.979398][ T6667] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6738] setpgid(0, 0) = 0 [pid 6738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6738] write(3, "1000", 4) = 4 executing program [pid 6738] close(3) = 0 [pid 6738] write(1, "executing program\n", 18) = 18 [pid 6738] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6738] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6738] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6738] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6738] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6738] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6738] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6739]}, 88) = 6739 [pid 6738] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6739 attached NULL, 8) = 0 [pid 6739] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6738] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] <... rseq resumed>) = 0 [pid 6738] <... futex resumed>) = 0 [pid 6739] set_robust_list(0x7ff7dbc929a0, 24 [pid 6738] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6739] <... set_robust_list resumed>) = 0 [pid 6739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6739] memfd_create("syzkaller", 0) = 3 [pid 6739] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6670] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6670] ioctl(4, LOOP_CLR_FD) = 0 [pid 6670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6670] close(4) = 0 [ 239.098768][ T6667] BTRFS info (device loop1): last unmount of filesystem 4cf7ae3b-ea03-4198-8af7-15662014c79f [pid 6670] close(3 [pid 6667] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6667] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6667] ioctl(4, LOOP_CLR_FD) = 0 [pid 6667] close(4 [pid 6668] <... close resumed>) = 0 [pid 6668] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6634] <... futex resumed>) = 0 [pid 6668] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6634] exit_group(0 [pid 6668] <... futex resumed>) = ? [pid 6634] <... exit_group resumed>) = ? [pid 6668] +++ exited with 0 +++ [pid 6635] <... futex resumed>) = ? [pid 6635] +++ exited with 0 +++ [pid 6634] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6634, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=85 /* 0.85 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3executing program ) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6740 ./strace-static-x86_64: Process 6740 attached [pid 6740] set_robust_list(0x5555693e0760, 24) = 0 [pid 6740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6740] setpgid(0, 0) = 0 [pid 6740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6740] write(3, "1000", 4) = 4 [pid 6740] close(3) = 0 [pid 6740] write(1, "executing program\n", 18) = 18 [pid 6740] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6740] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6740] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6740] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6740] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6740] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6741]}, 88) = 6741 ./strace-static-x86_64: Process 6741 attached [pid 6740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6740] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6740] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6741] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6741] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6741] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6741] memfd_create("syzkaller", 0) = 3 [pid 6670] <... close resumed>) = 0 [pid 6741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6670] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6669] <... futex resumed>) = 0 [pid 6669] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6670] <... futex resumed>) = 0 [pid 6669] <... futex resumed>) = 1 [pid 6670] creat("./bus", 000 [pid 6669] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6670] <... creat resumed>) = 3 [pid 6670] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6669] <... futex resumed>) = 0 [pid 6670] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6669] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6670] <... futex resumed>) = 0 [pid 6669] <... futex resumed>) = 1 [pid 6670] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6669] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] <... write resumed>) = 16777216 [pid 6669] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6669] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6669] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6669] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6742 attached => {parent_tid=[6742]}, 88) = 6742 [pid 6669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6669] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6669] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6695] munmap(0x7ff7d3800000, 138412032 [pid 6742] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6742] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6742] memfd_create("syzkaller", 0) = 4 [pid 6742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6695] <... munmap resumed>) = 0 [pid 6739] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6695] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6667] <... close resumed>) = 0 [pid 6695] <... openat resumed>) = 4 [pid 6695] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6667] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] close(3 [pid 6667] <... futex resumed>) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6695] <... close resumed>) = 0 [pid 6667] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] exit_group(0 [pid 6695] close(4) = 0 [pid 6667] <... futex resumed>) = ? [pid 6632] <... exit_group resumed>) = ? [pid 6695] mkdir("./file1", 0777 [pid 6667] +++ exited with 0 +++ [pid 6633] <... futex resumed>) = ? [pid 6695] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6633] +++ exited with 0 +++ [ 239.628812][ T6695] loop3: detected capacity change from 0 to 32768 [pid 6695] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6632] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6632, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=95 /* 0.95 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [ 239.820594][ T6695] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6750 attached , child_tidptr=0x5555693e0750) = 6750 [pid 6750] set_robust_list(0x5555693e0760, 24) = 0 [pid 6750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6750] setpgid(0, 0) = 0 [pid 6750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6750] write(3, "1000", 4) = 4 [ 239.888254][ T6695] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete executing program [pid 6750] close(3) = 0 [pid 6750] write(1, "executing program\n", 18) = 18 [pid 6750] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6750] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6750] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6750] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6750] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6750] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6750] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6751]}, 88) = 6751 [pid 6750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6750] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6750] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6751 attached [pid 6751] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6751] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6751] rt_sigprocmask(SIG_SETMASK, [], [pid 6741] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6751] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6751] memfd_create("syzkaller", 0) = 3 [pid 6751] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6670] <... write resumed>) = 16776704 [pid 6670] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6670] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6739] <... write resumed>) = 16777216 [pid 6695] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6739] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6742] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6695] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6695] ioctl(3, LOOP_CLR_FD) = 0 [pid 6695] close(3 [pid 6739] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6739] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6739] close(3) = 0 [pid 6739] close(4) = 0 [pid 6739] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 240.178152][ T6695] bcachefs: bch2_fs_get_tree() error: EINVAL [ 240.213040][ T6739] loop0: detected capacity change from 0 to 32768 [pid 6739] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6751] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6741] <... write resumed>) = 16777216 [pid 6741] munmap(0x7ff7d3800000, 138412032) = 0 [ 240.396536][ T6739] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 240.430729][ T6739] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6741] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6741] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6741] close(3) = 0 [pid 6741] close(4) = 0 [pid 6741] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 240.459478][ T6741] loop4: detected capacity change from 0 to 32768 [pid 6741] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6695] <... close resumed>) = 0 [pid 6695] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6691] <... futex resumed>) = 0 [pid 6691] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] creat("./bus", 000 [pid 6691] <... futex resumed>) = 0 [pid 6691] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6742] <... write resumed>) = 16777216 [pid 6742] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6742] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6742] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6742] ioctl(5, LOOP_CLR_FD) = 0 [pid 6742] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6742] close(5) = 0 [pid 6742] close(4 [pid 6691] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6691] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 240.603054][ T6741] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6691] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6691] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6691] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6766]}, 88) = 6766 ./strace-static-x86_64: Process 6766 attached [pid 6691] rt_sigprocmask(SIG_SETMASK, [], [pid 6766] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6691] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6766] <... rseq resumed>) = 0 [pid 6766] set_robust_list(0x7ff7dbc719a0, 24 [pid 6691] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6766] <... set_robust_list resumed>) = 0 [pid 6691] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6766] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6766] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6766] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6691] <... futex resumed>) = 0 [pid 6691] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] memfd_create("syzkaller", 0 [pid 6691] <... futex resumed>) = 0 [pid 6766] <... memfd_create resumed>) = 4 [pid 6691] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6739] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 240.659822][ T6741] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 240.684148][ T6739] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6766] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6739] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6739] ioctl(3, LOOP_CLR_FD) = 0 [pid 6739] close(3 [pid 6695] <... creat resumed>) = 3 [pid 6695] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6695] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6751] <... write resumed>) = 16777216 [pid 6751] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6751] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6751] ioctl(4, LOOP_SET_FD, 3 [pid 6741] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6751] <... ioctl resumed>) = 0 [pid 6751] close(3) = 0 [pid 6751] close(4) = 0 [pid 6741] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6751] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6751] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6742] <... close resumed>) = 0 [pid 6741] <... openat resumed>) = 3 [pid 6741] ioctl(3, LOOP_CLR_FD [pid 6742] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... ioctl resumed>) = 0 [pid 6742] <... futex resumed>) = 1 [pid 6741] close(3 [pid 6742] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6669] <... futex resumed>) = 0 [pid 6669] exit_group(0 [pid 6670] <... futex resumed>) = ? [pid 6669] <... exit_group resumed>) = ? [pid 6670] +++ exited with 0 +++ [pid 6742] <... futex resumed>) = ? [ 240.974257][ T6741] bcachefs: bch2_fs_get_tree() error: EINVAL [ 240.985193][ T6751] loop1: detected capacity change from 0 to 32768 [pid 6739] <... close resumed>) = 0 [pid 6739] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6739] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] <... futex resumed>) = 0 [pid 6738] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] <... futex resumed>) = 0 [pid 6738] <... futex resumed>) = 1 [pid 6739] creat("./bus", 000) = 3 [pid 6739] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6742] +++ exited with 0 +++ [pid 6739] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] +++ exited with 0 +++ [pid 6738] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6669, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=100 /* 1.00 s */} --- [pid 6738] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6739] <... futex resumed>) = 0 [pid 6738] <... futex resumed>) = 1 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6739] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6738] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [ 241.061636][ T6751] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 241.072514][ T6751] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6774 attached , child_tidptr=0x5555693e0750) = 6774 [pid 6774] set_robust_list(0x5555693e0760, 24) = 0 [pid 6738] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6738] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6738] <... futex resumed>) = 0 [pid 6738] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6774] <... prctl resumed>) = 0 [pid 6738] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6774] setpgid(0, 0 [pid 6738] <... mprotect resumed>) = 0 [pid 6774] <... setpgid resumed>) = 0 [pid 6738] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6738] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 6774] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6775 attached [pid 6774] write(3, "1000", 4 executing program [pid 6738] <... clone3 resumed> => {parent_tid=[6775]}, 88) = 6775 [pid 6774] <... write resumed>) = 4 [pid 6775] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6775] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6774] close(3 [pid 6738] rt_sigprocmask(SIG_SETMASK, [], [pid 6774] <... close resumed>) = 0 [pid 6738] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6774] write(1, "executing program\n", 18 [pid 6738] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] <... write resumed>) = 18 [pid 6738] <... futex resumed>) = 0 [pid 6775] rt_sigprocmask(SIG_SETMASK, [], [pid 6774] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6738] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6774] <... futex resumed>) = 0 [pid 6775] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6774] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6774] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6775] memfd_create("syzkaller", 0 [pid 6774] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6774] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6775] <... memfd_create resumed>) = 4 [pid 6774] <... mprotect resumed>) = 0 [pid 6775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6774] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6774] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6776 attached [pid 6776] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6774] <... clone3 resumed> => {parent_tid=[6776]}, 88) = 6776 [pid 6776] <... rseq resumed>) = 0 [pid 6774] rt_sigprocmask(SIG_SETMASK, [], [pid 6776] set_robust_list(0x7ff7dbc929a0, 24 [pid 6774] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6776] <... set_robust_list resumed>) = 0 [pid 6774] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6776] rt_sigprocmask(SIG_SETMASK, [], [pid 6774] <... futex resumed>) = 0 [pid 6776] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6775] <... mmap resumed>) = 0x7ff7d3800000 [pid 6774] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6776] memfd_create("syzkaller", 0) = 3 [pid 6776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6741] <... close resumed>) = 0 [pid 6741] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6740] <... futex resumed>) = 0 [pid 6741] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6740] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6740] <... futex resumed>) = 0 [pid 6741] creat("./bus", 000 [pid 6740] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6766] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6740] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6740] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6740] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6740] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6740] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6777 attached => {parent_tid=[6777]}, 88) = 6777 [pid 6777] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6740] rt_sigprocmask(SIG_SETMASK, [], [pid 6777] <... rseq resumed>) = 0 [pid 6740] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6740] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6777] set_robust_list(0x7ff7dbc719a0, 24 [pid 6740] <... futex resumed>) = 0 [pid 6740] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6777] <... set_robust_list resumed>) = 0 [pid 6777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6777] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6777] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6740] <... futex resumed>) = 0 [pid 6777] memfd_create("syzkaller", 0 [pid 6740] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6777] <... memfd_create resumed>) = 4 [pid 6740] <... futex resumed>) = 0 [pid 6777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6740] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6777] <... mmap resumed>) = 0x7ff7d3800000 [pid 6751] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6751] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 6751] ioctl(3, LOOP_CLR_FD) = 0 [ 241.372335][ T6751] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6751] close(3 [pid 6776] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6775] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6751] <... close resumed>) = 0 [pid 6751] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6751] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6750] <... futex resumed>) = 0 [pid 6750] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... futex resumed>) = 0 [pid 6750] <... futex resumed>) = 1 [pid 6751] creat("./bus", 000 [pid 6750] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6766] <... write resumed>) = 16777216 [pid 6766] munmap(0x7ff7d3800000, 138412032 [pid 6750] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6750] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6750] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6750] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6750] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6750] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6779]}, 88) = 6779 [pid 6750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6750] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6779 attached [pid 6779] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6766] <... munmap resumed>) = 0 [pid 6750] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6779] <... rseq resumed>) = 0 [pid 6779] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6766] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 6766] ioctl(5, LOOP_SET_FD, 4 [pid 6779] rt_sigprocmask(SIG_SETMASK, [], [pid 6777] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6779] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6779] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6779] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6750] <... futex resumed>) = 0 [pid 6750] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6779] memfd_create("syzkaller", 0 [pid 6750] <... futex resumed>) = 0 [pid 6766] <... ioctl resumed>) = 0 [pid 6766] close(4) = 0 [pid 6766] close(5 [pid 6779] <... memfd_create resumed>) = 4 [pid 6766] <... close resumed>) = 0 [pid 6750] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6766] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 241.823725][ T6766] loop3: detected capacity change from 0 to 32768 [ 241.875158][ T6766] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6766) [ 241.942484][ T6766] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 241.969668][ T5867] Allocator stuck? Waited for 30 seconds [ 241.969701][ T5867] Allocator debug: [ 241.969713][ T5867] capacity26112 [ 241.969725][ T5867] reserved 6656 [pid 6766] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6775] <... write resumed>) = 16777216 [ 241.969737][ T5867] hidden 0 [ 241.969749][ T5867] btree 416 [ 241.969761][ T5867] data 1600 [ 241.969773][ T5867] cached 0 [ 241.969785][ T5867] reserved 0 [ 241.969797][ T5867] online_reserved 12384 [ 241.969809][ T5867] nr_inodes 0 [pid 6775] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 6775] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6775] close(4) = 0 [pid 6775] close(5) = 0 [pid 6775] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 241.969828][ T5867] [pid 6775] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6739] <... write resumed>) = 16776704 [ 241.969840][ T5867] freelist_wait waiting [pid 6739] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6739] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6776] <... write resumed>) = 16777216 [ 241.969852][ T5867] open buckets allocated19 [ 241.969863][ T5867] open buckets total 1024 [pid 6776] munmap(0x7ff7d3800000, 138412032 [pid 6777] <... write resumed>) = 16777216 [ 241.969875][ T5867] open_buckets_wait empty [ 241.969887][ T5867] open_buckets_btree 17 [pid 6777] munmap(0x7ff7d3800000, 138412032 [pid 6776] <... munmap resumed>) = 0 [pid 6777] <... munmap resumed>) = 0 [pid 6777] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6776] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6777] <... openat resumed>) = 5 [pid 6777] ioctl(5, LOOP_SET_FD, 4 [pid 6776] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6776] ioctl(4, LOOP_CLR_FD [pid 6777] <... ioctl resumed>) = 0 [pid 6776] <... ioctl resumed>) = 0 [pid 6777] close(4) = 0 [pid 6777] close(5 [pid 6776] ioctl(4, LOOP_SET_FD, 3 [pid 6777] <... close resumed>) = 0 [pid 6776] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6776] close(4) = 0 [ 241.969899][ T5867] open_buckets_user 1 [ 241.969911][ T5867] btree reserve cache 0 [pid 6776] close(3 [pid 6777] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 241.969923][ T5867] [ 241.969934][ T5867] Dev 0: [pid 6777] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6776] <... close resumed>) = 0 [pid 6776] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6776] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6774] <... futex resumed>) = 0 [pid 6774] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6774] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 241.969945][ T5867] buckets sectors fragmented [ 241.969959][ T5867] free 18 0 0 [pid 6776] creat("./bus", 000 [pid 6779] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6774] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6774] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6774] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6774] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 241.969973][ T5867] sb 25 6152 248 [pid 6774] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6826 attached [pid 6826] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6774] <... clone3 resumed> => {parent_tid=[6826]}, 88) = 6826 [pid 6826] <... rseq resumed>) = 0 [pid 6774] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6826] set_robust_list(0x7ff7dbc719a0, 24 [pid 6774] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6774] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6826] <... set_robust_list resumed>) = 0 [pid 6826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6826] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [ 241.969987][ T5867] journal 8 2048 0 [ 241.970001][ T5867] btree 7 416 1376 [pid 6826] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6774] <... futex resumed>) = 0 [pid 6826] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6774] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6774] <... futex resumed>) = 0 [pid 6826] memfd_create("syzkaller", 0 [pid 6774] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6826] <... memfd_create resumed>) = 4 [pid 6826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 241.970014][ T5867] user 7 1600 192 [ 241.970028][ T5867] cached 0 0 0 [ 241.970042][ T5867] parity 0 0 0 [ 241.970056][ T5867] stripe 0 0 0 [ 241.970069][ T5867] need_gc_gens 0 0 0 [ 241.970083][ T5867] need_discard 63 0 0 [pid 6751] <... creat resumed>) = 3 [pid 6751] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6751] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6776] <... creat resumed>) = 3 [pid 6741] <... creat resumed>) = 3 [pid 6776] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6776] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6741] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 241.970096][ T5867] unstriped 0 0 0 [ 241.970110][ T5867] capacity 128 [ 241.970122][ T5867] [ 241.970133][ T5867] reserves: [ 241.970144][ T5867] stripe 12 [ 241.970156][ T5867] normal 10 [ 241.970168][ T5867] copygc 8 [ 241.970180][ T5867] btree 4 [ 241.970192][ T5867] btree_copygc 0 [pid 6741] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6766] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6766] ioctl(4, LOOP_CLR_FD [pid 6779] <... write resumed>) = 16777216 [pid 6766] <... ioctl resumed>) = 0 [pid 6766] close(4 [ 241.970204][ T5867] reclaim 0 [ 241.970216][ T5867] interior_updates 0 [ 241.970228][ T5867] [ 241.970239][ T5867] open buckets 18 [ 241.970251][ T5867] buckets to invalidate 0 [pid 6779] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6775] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6779] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 6779] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6779] close(4) = 0 [pid 6779] close(5) = 0 [pid 6779] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6779] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6775] ioctl(4, LOOP_CLR_FD) = 0 [ 241.970263][ T5867] [ 241.970273][ T5867] Copygc debug: [ 241.970284][ T5867] running: 0 [ 241.970296][ T5867] copygc_wait:55216 [pid 6775] close(4 [pid 6777] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6777] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6777] ioctl(4, LOOP_CLR_FD) = 0 [ 241.970307][ T5867] copygc_wait_at:48208 [ 241.970319][ T5867] Currently waiting for:1.42 MiB [pid 6777] close(4) = 0 [pid 6777] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6740] <... futex resumed>) = 0 [ 241.970331][ T5867] Currently waiting since:2.00 MiB [pid 6777] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6740] exit_group(0 [pid 6777] <... futex resumed>) = ? [pid 6741] <... futex resumed>) = ? [pid 6740] <... exit_group resumed>) = ? [pid 6777] +++ exited with 0 +++ [pid 6741] +++ exited with 0 +++ [pid 6740] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6740, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=85 /* 0.85 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 241.970344][ T5867] Currently calculated wait:4.84 KiB [ 241.970356][ T5867] [ 241.970367][ T5867] Journal debug: [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3 [pid 6826] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5850] <... close resumed>) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6845 [ 241.970378][ T5867] flags: replay_done,running,space_low [ 241.970391][ T5867] dirty journal entries: 10/32768 [ 241.970403][ T5867] seq: 12 [ 241.970416][ T5867] seq_ondisk: 12 [ 241.970428][ T5867] last_seq: 3 [ 241.970440][ T5867] last_seq_ondisk: 3 [ 241.970452][ T5867] flushed_seq_ondisk: 12 [ 241.970464][ T5867] watermark: reclaim [ 241.970476][ T5867] each entry reserved: 321 [pid 6766] <... close resumed>) = 0 ./strace-static-x86_64: Process 6845 attached [ 241.970488][ T5867] nr flush writes: 9 [ 241.970500][ T5867] nr noflush writes: 3 [ 241.970512][ T5867] average write size: 55.6 KiB [ 241.970525][ T5867] nr direct reclaim: 0 [ 241.970537][ T5867] nr background reclaim: 33 [ 241.970549][ T5867] reclaim kicked: 1 [ 241.970561][ T5867] reclaim runs in: 0 ms [ 241.970573][ T5867] blocked: 0 [ 241.970586][ T5867] current entry sectors: 0 [ 241.970598][ T5867] current entry error: journal_full [pid 6845] set_robust_list(0x5555693e0760, 24) = 0 [pid 6845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6845] setpgid(0, 0) = 0 [pid 6845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6845] write(3, "1000", 4) = 4 [pid 6845] close(3 [pid 6766] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6845] <... close resumed>) = 0 [pid 6766] <... futex resumed>) = 1 [pid 6691] <... futex resumed>) = 0 [pid 6766] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6691] exit_group(0 [pid 6766] <... futex resumed>) = ? [pid 6695] <... futex resumed>) = ? [pid 6691] <... exit_group resumed>) = ? [pid 6766] +++ exited with 0 +++ [pid 6695] +++ exited with 0 +++ [pid 6691] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6691, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=91 /* 0.91 s */} --- executing program [pid 6845] write(1, "executing program\n", 18 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6845] <... write resumed>) = 18 [pid 5847] <... openat resumed>) = 3 [pid 6845] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 6845] <... futex resumed>) = 0 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6845] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5847] close(3 [pid 6845] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5847] <... close resumed>) = 0 [pid 6845] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6845] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 241.970610][ T5867] current entry: closed [ 241.970622][ T5867] unwritten entries: [ 241.970634][ T5867] last buf closed [ 241.970646][ T5867] space: [ 241.970657][ T5867] discarded 0:0 [ 241.970669][ T5867] clean ondisk 0:0 [ 241.970681][ T5867] clean 0:0 [ 241.970693][ T5867] total 256:2048 [ 241.970706][ T5867] dev 0: [ 241.970717][ T5867] nr 8 [ 241.970729][ T5867] bucket size 256 ./strace-static-x86_64: Process 6847 attached [pid 6845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6847] set_robust_list(0x5555693e0760, 24 [pid 6845] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 6847 [pid 6847] <... set_robust_list resumed>) = 0 [pid 6845] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6845] <... mprotect resumed>) = 0 [pid 6847] <... prctl resumed>) = 0 [pid 6845] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6847] setpgid(0, 0 [pid 6845] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6847] <... setpgid resumed>) = 0 [pid 6845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6848 attached [pid 6847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6848] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6847] <... openat resumed>) = 3 [pid 6845] <... clone3 resumed> => {parent_tid=[6848]}, 88) = 6848 [pid 6848] <... rseq resumed>) = 0 [pid 6847] write(3, "1000", 4 [pid 6845] rt_sigprocmask(SIG_SETMASK, [], [pid 6848] set_robust_list(0x7ff7dbc929a0, 24 [pid 6847] <... write resumed>) = 4 [pid 6845] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6848] <... set_robust_list resumed>) = 0 [pid 6847] close(3 [pid 6845] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6848] rt_sigprocmask(SIG_SETMASK, [], executing program [pid 6847] <... close resumed>) = 0 [pid 6845] <... futex resumed>) = 0 [pid 6848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6847] write(1, "executing program\n", 18 [pid 6845] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6848] memfd_create("syzkaller", 0 [pid 6847] <... write resumed>) = 18 [pid 6848] <... memfd_create resumed>) = 3 [pid 6847] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6847] <... futex resumed>) = 0 [pid 6848] <... mmap resumed>) = 0x7ff7d3800000 [pid 6847] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [ 241.970741][ T5867] available 0:0 [ 241.970753][ T5867] discard_idx 1 [ 241.970765][ T5867] dirty_ondisk 1 (seq 3) [ 241.970778][ T5867] dirty_idx 1 (seq 3) [ 241.970791][ T5867] cur_idx 7 (seq 12) [ 241.970803][ T5867] [ 241.986209][ T6766] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 242.144567][ T6775] loop0: detected capacity change from 0 to 32768 [pid 6847] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6847] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6849]}, 88) = 6849 [ 242.149856][ T6775] BTRFS: device /dev/loop0 (7:0) using temp-fsid f1e9bffe-c085-4b3c-af10-7a250a2e3ef3 [ 242.149922][ T6775] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6775) [ 242.157478][ T6766] BTRFS info (device loop3): rebuilding free space tree [ 242.159021][ T6775] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 242.159100][ T6775] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 6847] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6849 attached NULL, 8) = 0 [pid 6847] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6847] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6849] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [ 242.202911][ T6766] BTRFS info (device loop3): disabling free space tree [ 242.202977][ T6766] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 242.203004][ T6766] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 242.383034][ T6777] loop4: detected capacity change from 0 to 32768 [ 242.393580][ T6777] BTRFS: device /dev/loop4 (7:4) using temp-fsid 06239008-969a-4a83-8f97-6965c6206ed4 [pid 6849] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6849] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6849] memfd_create("syzkaller", 0) = 3 [pid 6849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 242.393630][ T6777] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6777) [ 242.482617][ T6777] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 242.482705][ T6777] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 242.484565][ T6775] BTRFS info (device loop0): rebuilding free space tree [ 242.511565][ T6775] BTRFS info (device loop0): disabling free space tree [ 242.511630][ T6775] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 242.511657][ T6775] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 242.644397][ T6777] BTRFS info (device loop4): rebuilding free space tree [ 242.687487][ T6777] BTRFS info (device loop4): disabling free space tree [ 242.687571][ T6777] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 242.687599][ T6777] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 242.870070][ T6766] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 242.871833][ T6775] BTRFS info (device loop0): last unmount of filesystem f1e9bffe-c085-4b3c-af10-7a250a2e3ef3 [ 242.872618][ T6777] BTRFS info (device loop4): last unmount of filesystem 06239008-969a-4a83-8f97-6965c6206ed4 [ 243.029290][ T6779] loop1: detected capacity change from 0 to 32768 [ 243.040558][ T6779] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6779) [pid 6775] <... close resumed>) = 0 [pid 6775] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6738] <... futex resumed>) = 0 [ 243.048965][ T6779] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 243.049044][ T6779] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 243.214416][ T6779] BTRFS info (device loop1): rebuilding free space tree [ 243.668668][ T6779] BTRFS info (device loop1): disabling free space tree [pid 6775] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] exit_group(0) = ? [pid 6775] <... futex resumed>) = ? [pid 6739] <... futex resumed>) = ? [pid 6739] +++ exited with 0 +++ [ 243.748031][ T6779] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6848] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6775] +++ exited with 0 +++ [pid 6738] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6738, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=114 /* 1.14 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6852 ./strace-static-x86_64: Process 6852 attached [pid 6852] set_robust_list(0x5555693e0760, 24) = 0 [pid 6852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6852] setpgid(0, 0) = 0 [pid 6852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6852] write(3, "1000", 4) = 4 [pid 6852] close(3) = 0 [pid 6852] write(1, "executing program\n", 18) = 18 [pid 6852] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 243.816114][ T6779] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6852] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6852] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6852] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6852] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6853]}, 88) = 6853 [pid 6852] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6852] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6853 attached [pid 6852] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6853] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6853] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6853] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6853] memfd_create("syzkaller", 0) = 3 [pid 6853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 243.928838][ T6779] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6779] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6779] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6779] ioctl(4, LOOP_CLR_FD) = 0 [pid 6779] close(4) = 0 [pid 6779] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6750] <... futex resumed>) = 0 [pid 6779] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6750] exit_group(0 [pid 6751] <... futex resumed>) = ? [pid 6779] <... futex resumed>) = ? [pid 6750] <... exit_group resumed>) = ? [pid 6751] +++ exited with 0 +++ [pid 6779] +++ exited with 0 +++ [pid 6750] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6750, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=119 /* 1.19 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = 0 [pid 6826] <... write resumed>) = 16777216 [pid 5844] close(3) = 0 [pid 6826] munmap(0x7ff7d3800000, 138412032 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6854 ./strace-static-x86_64: Process 6854 attached [pid 6854] set_robust_list(0x5555693e0760, 24) = 0 [pid 6826] <... munmap resumed>) = 0 [pid 6854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6826] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6854] <... prctl resumed>) = 0 [pid 6826] <... openat resumed>) = 5 [pid 6854] setpgid(0, 0 [pid 6826] ioctl(5, LOOP_SET_FD, 4 [pid 6854] <... setpgid resumed>) = 0 [pid 6826] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6854] <... openat resumed>) = 3 [pid 6854] write(3, "1000", 4 [pid 6826] ioctl(5, LOOP_CLR_FD [pid 6854] <... write resumed>) = 4 [pid 6826] <... ioctl resumed>) = 0 [pid 6854] close(3) = 0 executing program [pid 6854] write(1, "executing program\n", 18) = 18 [pid 6854] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6854] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 6826] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6854] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6826] close(5 [pid 6854] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6826] <... close resumed>) = 0 [pid 6854] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6826] close(4 [pid 6854] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6854] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6854] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6854] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6855 attached => {parent_tid=[6855]}, 88) = 6855 [pid 6854] rt_sigprocmask(SIG_SETMASK, [], [pid 6855] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6854] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6855] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6855] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6855] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6854] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6854] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6855] <... futex resumed>) = 0 [pid 6855] memfd_create("syzkaller", 0) = 3 [pid 6855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6848] <... write resumed>) = 16777216 [pid 6848] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6848] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6848] ioctl(4, LOOP_SET_FD, 3 [pid 6853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6848] <... ioctl resumed>) = 0 [pid 6848] close(3) = 0 [pid 6848] close(4) = 0 [pid 6848] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6848] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6826] <... close resumed>) = 0 [pid 6826] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6774] <... futex resumed>) = 0 [pid 6826] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6774] exit_group(0 [pid 6826] <... futex resumed>) = ? [pid 6776] <... futex resumed>) = ? [pid 6774] <... exit_group resumed>) = ? [pid 6776] +++ exited with 0 +++ [ 244.399558][ T6848] loop4: detected capacity change from 0 to 32768 [pid 6826] +++ exited with 0 +++ [pid 6774] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6774, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=67 /* 0.67 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6863 attached , child_tidptr=0x5555693e0750) = 6863 [pid 6863] set_robust_list(0x5555693e0760, 24) = 0 [pid 6863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6863] setpgid(0, 0) = 0 [pid 6863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6863] write(3, "1000", 4) = 4 [pid 6863] close(3) = 0 executing program [pid 6863] write(1, "executing program\n", 18) = 18 [pid 6863] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6863] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6863] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6863] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6863] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6863] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[6864]}, 88) = 6864 [pid 6863] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6863] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6864 attached [pid 6863] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6864] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6864] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 244.517145][ T6848] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6864] memfd_create("syzkaller", 0) = 3 [pid 6864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 244.581397][ T6848] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6853] <... write resumed>) = 16777216 [pid 6853] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6853] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6849] <... write resumed>) = 16777216 [pid 6853] close(3 [pid 6849] munmap(0x7ff7d3800000, 138412032 [pid 6853] <... close resumed>) = 0 [pid 6853] close(4) = 0 [pid 6853] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6853] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6849] <... munmap resumed>) = 0 [ 244.735848][ T6853] loop0: detected capacity change from 0 to 32768 [pid 6849] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6849] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6849] close(3) = 0 [pid 6849] close(4) = 0 [pid 6849] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 244.801619][ T6849] loop3: detected capacity change from 0 to 32768 [pid 6849] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6848] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6848] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 6848] ioctl(3, LOOP_CLR_FD) = 0 [ 244.862552][ T6848] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6848] close(3) = 0 [pid 6848] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6845] <... futex resumed>) = 0 [pid 6845] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6848] creat("./bus", 000 [pid 6845] <... futex resumed>) = 0 [pid 6848] <... creat resumed>) = 3 [ 244.951331][ T6853] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 244.986779][ T6853] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6845] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6848] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6845] <... futex resumed>) = 0 [pid 6848] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6845] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 245.012264][ T6849] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 245.049208][ T6849] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6845] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6845] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6845] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6845] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6879 attached [pid 6879] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6845] <... clone3 resumed> => {parent_tid=[6879]}, 88) = 6879 [pid 6879] <... rseq resumed>) = 0 [pid 6845] rt_sigprocmask(SIG_SETMASK, [], [pid 6879] set_robust_list(0x7ff7dbc719a0, 24 [pid 6845] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6879] <... set_robust_list resumed>) = 0 [pid 6845] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6879] rt_sigprocmask(SIG_SETMASK, [], [pid 6845] <... futex resumed>) = 0 [pid 6879] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6845] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6879] memfd_create("syzkaller", 0) = 4 [pid 6879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6864] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6853] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6853] ioctl(3, LOOP_CLR_FD) = 0 [ 245.219343][ T6853] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6853] close(3 [pid 6849] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6849] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6849] ioctl(3, LOOP_CLR_FD) = 0 [ 245.278305][ T6849] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6849] close(3 [pid 6855] <... write resumed>) = 16777216 [pid 6855] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6855] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6855] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6855] close(3) = 0 [ 245.418528][ T6855] loop1: detected capacity change from 0 to 32768 [pid 6855] close(4) = 0 [pid 6855] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6855] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6864] <... write resumed>) = 16777216 [pid 6879] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6864] munmap(0x7ff7d3800000, 138412032 [pid 6853] <... close resumed>) = 0 [ 245.604666][ T6855] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 245.614125][ T6855] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6853] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6864] <... munmap resumed>) = 0 [pid 6853] <... futex resumed>) = 1 [pid 6852] <... futex resumed>) = 0 [pid 6853] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6852] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6864] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6852] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6853] <... futex resumed>) = 0 [pid 6853] creat("./bus", 000 [pid 6849] <... close resumed>) = 0 [pid 6864] <... openat resumed>) = 4 [pid 6864] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6864] ioctl(4, LOOP_CLR_FD [pid 6849] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6864] <... ioctl resumed>) = 0 [pid 6849] <... futex resumed>) = 1 [pid 6847] <... futex resumed>) = 0 [pid 6847] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6849] creat("./bus", 000 [pid 6847] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6864] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6864] close(4) = 0 [pid 6864] close(3 [pid 6852] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6855] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6852] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6855] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6852] <... futex resumed>) = 0 [pid 6855] <... openat resumed>) = 3 [pid 6852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6855] ioctl(3, LOOP_CLR_FD [pid 6852] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6855] <... ioctl resumed>) = 0 [pid 6852] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 6855] close(3 [pid 6852] <... mprotect resumed>) = 0 [pid 6847] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6847] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6852] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6852] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6847] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6847] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [ 245.720503][ T6855] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6888 attached [pid 6888] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6847] <... clone3 resumed> => {parent_tid=[6888]}, 88) = 6888 ./strace-static-x86_64: Process 6889 attached [pid 6888] <... rseq resumed>) = 0 [pid 6852] <... clone3 resumed> => {parent_tid=[6889]}, 88) = 6889 [pid 6847] rt_sigprocmask(SIG_SETMASK, [], [pid 6889] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6888] set_robust_list(0x7ff7dbc719a0, 24 [pid 6852] rt_sigprocmask(SIG_SETMASK, [], [pid 6847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6889] <... rseq resumed>) = 0 [pid 6888] <... set_robust_list resumed>) = 0 [pid 6852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6847] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6889] set_robust_list(0x7ff7dbc719a0, 24 [pid 6888] rt_sigprocmask(SIG_SETMASK, [], [pid 6852] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6847] <... futex resumed>) = 0 [pid 6889] <... set_robust_list resumed>) = 0 [pid 6852] <... futex resumed>) = 0 [pid 6847] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6889] rt_sigprocmask(SIG_SETMASK, [], [pid 6888] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6852] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6889] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6888] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6889] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6888] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6889] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6888] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6889] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6888] <... futex resumed>) = 1 [pid 6847] <... futex resumed>) = 0 [pid 6888] memfd_create("syzkaller", 0 [pid 6847] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6888] <... memfd_create resumed>) = 4 [pid 6847] <... futex resumed>) = 0 [pid 6888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6847] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6888] <... mmap resumed>) = 0x7ff7d3800000 [pid 6889] <... futex resumed>) = 1 [pid 6852] <... futex resumed>) = 0 [pid 6889] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6852] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6889] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6852] <... futex resumed>) = 0 [pid 6889] memfd_create("syzkaller", 0 [pid 6852] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6889] <... memfd_create resumed>) = 4 [pid 6889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6879] <... write resumed>) = 16777216 [pid 6879] munmap(0x7ff7d3800000, 138412032 [pid 6864] <... close resumed>) = 0 [pid 6879] <... munmap resumed>) = 0 [pid 6879] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6864] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6879] <... openat resumed>) = 5 [pid 6864] <... futex resumed>) = 1 [pid 6863] <... futex resumed>) = 0 [pid 6879] ioctl(5, LOOP_SET_FD, 4 [pid 6863] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6864] creat("./bus", 000 [pid 6863] <... futex resumed>) = 0 [pid 6863] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6879] <... ioctl resumed>) = 0 [pid 6879] close(4) = 0 [pid 6879] close(5) = 0 [pid 6879] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6879] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6855] <... close resumed>) = 0 [pid 6855] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6854] <... futex resumed>) = 0 [pid 6855] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6854] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6855] <... futex resumed>) = 0 [pid 6854] <... futex resumed>) = 1 [pid 6863] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6855] creat("./bus", 000 [pid 6863] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6854] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 246.061882][ T6879] loop4: detected capacity change from 0 to 32768 [ 246.083075][ T6879] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6879) [pid 6863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6863] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6863] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6863] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6890]}, 88) = 6890 [pid 6863] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6863] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6863] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6890 attached [pid 6890] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6890] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6890] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6890] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6863] <... futex resumed>) = 0 [pid 6863] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6863] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6890] memfd_create("syzkaller", 0) = 4 [pid 6890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 246.132312][ T6879] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6854] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6854] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6848] <... write resumed>) = 16776704 [pid 6854] <... futex resumed>) = 0 [pid 6848] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6848] <... futex resumed>) = 0 [pid 6854] <... mmap resumed>) = 0x7ff7dbc51000 [pid 6848] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6854] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6854] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6854] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6892 attached => {parent_tid=[6892]}, 88) = 6892 [pid 6854] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6854] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6854] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6892] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6892] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 6892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 246.178294][ T6879] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 6892] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6892] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6892] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6854] <... futex resumed>) = 0 [pid 6854] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6892] <... futex resumed>) = 0 [pid 6854] <... futex resumed>) = 1 [pid 6892] memfd_create("syzkaller", 0 [pid 6854] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6892] <... memfd_create resumed>) = 4 [pid 6892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6889] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6888] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 6888] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6888] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 6888] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6888] close(4) = 0 [pid 6888] close(5) = 0 [ 246.470593][ T6879] BTRFS info (device loop4): rebuilding free space tree [ 246.491914][ T6888] loop3: detected capacity change from 0 to 32768 [pid 6888] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 246.515427][ T6888] BTRFS: device /dev/loop3 (7:3) using temp-fsid 171d9ef7-97a8-4067-aa70-be4cec05ea74 [ 246.528631][ T6888] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6888) [ 246.542759][ T6879] BTRFS info (device loop4): disabling free space tree [ 246.550192][ T6879] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 246.563336][ T6879] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 246.577795][ T6888] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 246.595460][ T6888] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 6888] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6890] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6864] <... creat resumed>) = 3 [pid 6849] <... creat resumed>) = 3 [pid 6855] <... creat resumed>) = 3 [pid 6864] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6864] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6855] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6849] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6855] <... futex resumed>) = 0 [pid 6849] <... futex resumed>) = 0 [pid 6855] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6849] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6853] <... creat resumed>) = 3 [pid 6853] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 246.838181][ T6879] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 246.854861][ T6888] BTRFS info (device loop3): rebuilding free space tree [pid 6853] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6889] <... write resumed>) = 16777216 [pid 6889] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 6889] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 6892] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6889] close(4) = 0 [pid 6889] close(5) = 0 [pid 6889] mkdir("./bus", 0777 [pid 6879] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6879] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6879] ioctl(4, LOOP_CLR_FD) = 0 [pid 6879] close(4) = 0 [pid 6879] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6845] <... futex resumed>) = 0 [pid 6845] exit_group(0) = ? [pid 6889] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 6889] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6879] +++ exited with 0 +++ [ 246.959301][ T6889] loop0: detected capacity change from 0 to 32768 [ 246.966073][ T6888] BTRFS info (device loop3): disabling free space tree [ 246.983349][ T6888] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6848] <... futex resumed>) = ? [pid 6848] +++ exited with 0 +++ [pid 6845] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6845, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=105 /* 1.05 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 6924 [ 247.015790][ T6889] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6889) [ 247.053939][ T6889] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d ./strace-static-x86_64: Process 6924 attached [pid 6924] set_robust_list(0x5555693e0760, 24) = 0 [pid 6924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6924] setpgid(0, 0) = 0 [pid 6924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6924] write(3, "1000", 4) = 4 [pid 6924] close(3) = 0 [pid 6924] write(1, "executing program\n", 18) = 18 [pid 6924] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 247.068039][ T6888] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 247.081459][ T6889] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 6924] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6924] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6930 attached [pid 6930] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6924] <... clone3 resumed> => {parent_tid=[6930]}, 88) = 6930 [pid 6930] <... rseq resumed>) = 0 [pid 6924] rt_sigprocmask(SIG_SETMASK, [], [pid 6930] set_robust_list(0x7ff7dbc929a0, 24 [pid 6924] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6930] <... set_robust_list resumed>) = 0 [pid 6924] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6930] rt_sigprocmask(SIG_SETMASK, [], [pid 6924] <... futex resumed>) = 0 [pid 6930] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6924] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6930] memfd_create("syzkaller", 0) = 3 [pid 6930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 247.178422][ T6888] BTRFS info (device loop3): last unmount of filesystem 171d9ef7-97a8-4067-aa70-be4cec05ea74 [pid 6888] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6888] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6888] ioctl(4, LOOP_CLR_FD) = 0 [ 247.346738][ T6889] BTRFS info (device loop0): rebuilding free space tree [pid 6888] close(4 [pid 6890] <... write resumed>) = 16777216 [ 247.404604][ T6889] BTRFS info (device loop0): disabling free space tree [ 247.425437][ T6889] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6890] munmap(0x7ff7d3800000, 138412032 [pid 6930] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6890] <... munmap resumed>) = 0 [pid 6890] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 6890] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6890] ioctl(5, LOOP_CLR_FD) = 0 [ 247.456340][ T6889] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6890] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6890] close(5) = 0 [ 247.575002][ T6889] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6890] close(4 [pid 6892] <... write resumed>) = 16777216 [pid 6892] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6892] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 6892] ioctl(5, LOOP_SET_FD, 4 [pid 6889] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6889] ioctl(4, LOOP_CLR_FD) = 0 [pid 6892] <... ioctl resumed>) = 0 [pid 6892] close(4) = 0 [pid 6892] close(5) = 0 [pid 6892] mkdir("./bus", 0777 [pid 6889] close(4 [pid 6892] <... mkdir resumed>) = -1 EEXIST (File exists) [ 247.698209][ T6892] loop1: detected capacity change from 0 to 32768 [pid 6892] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6889] <... close resumed>) = 0 [pid 6888] <... close resumed>) = 0 [pid 6889] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6888] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6852] <... futex resumed>) = 0 [pid 6889] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6888] <... futex resumed>) = 1 [pid 6852] exit_group(0 [pid 6847] <... futex resumed>) = 0 [pid 6889] <... futex resumed>) = ? [pid 6888] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6853] <... futex resumed>) = ? [pid 6852] <... exit_group resumed>) = ? [pid 6847] exit_group(0 [pid 6889] +++ exited with 0 +++ [pid 6888] <... futex resumed>) = ? [pid 6853] +++ exited with 0 +++ [pid 6852] +++ exited with 0 +++ [pid 6849] <... futex resumed>) = ? [pid 6847] <... exit_group resumed>) = ? [pid 6888] +++ exited with 0 +++ [pid 6849] +++ exited with 0 +++ [pid 6847] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6847, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=92 /* 0.92 s */} --- [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6852, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=79 /* 0.79 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6942 attached [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 6942 [pid 6942] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 6943 ./strace-static-x86_64: Process 6943 attached [pid 6942] <... set_robust_list resumed>) = 0 [pid 6943] set_robust_list(0x5555693e0760, 24 [pid 6942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6943] <... set_robust_list resumed>) = 0 [ 247.740771][ T6892] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (6892) [pid 6942] setpgid(0, 0) = 0 [pid 6943] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6943] <... prctl resumed>) = 0 [pid 6942] <... openat resumed>) = 3 [pid 6942] write(3, "1000", 4 [pid 6943] setpgid(0, 0 [pid 6942] <... write resumed>) = 4 [pid 6943] <... setpgid resumed>) = 0 [pid 6942] close(3 [pid 6943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6942] <... close resumed>) = 0 executing program [pid 6942] write(1, "executing program\n", 18) = 18 [pid 6942] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6943] <... openat resumed>) = 3 [pid 6942] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6943] write(3, "1000", 4 [pid 6942] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6943] <... write resumed>) = 4 [pid 6942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6943] close(3executing program ) = 0 [pid 6942] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6943] write(1, "executing program\n", 18 [pid 6942] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6943] <... write resumed>) = 18 [pid 6942] <... mprotect resumed>) = 0 [pid 6943] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6942] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6943] <... futex resumed>) = 0 [pid 6942] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6943] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 6942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6890] <... close resumed>) = 0 [pid 6943] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6943] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6942] <... clone3 resumed> => {parent_tid=[6944]}, 88) = 6944 ./strace-static-x86_64: Process 6944 attached [pid 6943] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6942] rt_sigprocmask(SIG_SETMASK, [], [pid 6944] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [ 247.803178][ T6892] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 247.835895][ T6892] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 6943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6944] <... rseq resumed>) = 0 [pid 6943] <... mmap resumed>) = 0x7ff7dbc72000 [pid 6942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6890] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6944] set_robust_list(0x7ff7dbc929a0, 24 [pid 6943] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 6942] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6944] <... set_robust_list resumed>) = 0 [pid 6943] <... mprotect resumed>) = 0 [pid 6942] <... futex resumed>) = 0 [pid 6890] <... futex resumed>) = 1 [pid 6863] <... futex resumed>) = 0 [pid 6944] rt_sigprocmask(SIG_SETMASK, [], [pid 6943] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6890] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6942] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6863] exit_group(0 [pid 6944] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6943] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6890] <... futex resumed>) = ? [pid 6864] <... futex resumed>) = ? [pid 6863] <... exit_group resumed>) = ? [pid 6944] memfd_create("syzkaller", 0 [pid 6943] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 6890] +++ exited with 0 +++ [pid 6864] +++ exited with 0 +++ ./strace-static-x86_64: Process 6948 attached [pid 6944] <... memfd_create resumed>) = 3 [pid 6863] +++ exited with 0 +++ [pid 6948] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6943] <... clone3 resumed> => {parent_tid=[6948]}, 88) = 6948 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6863, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=63 /* 0.63 s */} --- [pid 6948] <... rseq resumed>) = 0 [pid 6944] <... mmap resumed>) = 0x7ff7d3800000 [pid 6943] rt_sigprocmask(SIG_SETMASK, [], [pid 6948] set_robust_list(0x7ff7dbc929a0, 24 [pid 6943] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6943] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6948] <... set_robust_list resumed>) = 0 [pid 6943] <... futex resumed>) = 0 [pid 6943] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6948] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6948] memfd_create("syzkaller", 0 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 6953 [pid 6948] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 6953 attached [pid 6948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6953] set_robust_list(0x5555693e0760, 24) = 0 [pid 6953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6953] setpgid(0, 0) = 0 [pid 6953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6953] write(3, "1000", 4) = 4 [pid 6953] close(3) = 0 [pid 6953] write(1, "executing program\n", 18 [pid 6930] <... write resumed>) = 16777216 executing program [pid 6953] <... write resumed>) = 18 [pid 6953] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6930] munmap(0x7ff7d3800000, 138412032 [pid 6953] <... futex resumed>) = 0 [pid 6953] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6953] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6953] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6953] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6960 attached => {parent_tid=[6960]}, 88) = 6960 [pid 6953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6953] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6953] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6960] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 6960] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6960] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6930] <... munmap resumed>) = 0 [pid 6960] memfd_create("syzkaller", 0) = 3 [pid 6960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6930] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 248.022224][ T6892] BTRFS info (device loop1): rebuilding free space tree [ 248.031279][ T6930] loop4: detected capacity change from 0 to 32768 [ 248.060298][ T6892] BTRFS info (device loop1): disabling free space tree [pid 6930] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6930] close(3) = 0 [pid 6930] close(4) = 0 [pid 6930] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 248.067781][ T6892] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 248.079101][ T6892] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 6930] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 248.180920][ T6892] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 6944] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6892] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6892] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6892] ioctl(4, LOOP_CLR_FD) = 0 [pid 6892] close(4) = 0 [pid 6892] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6854] <... futex resumed>) = 0 [pid 6854] exit_group(0 [pid 6855] <... futex resumed>) = ? [pid 6854] <... exit_group resumed>) = ? [pid 6855] +++ exited with 0 +++ [pid 6892] +++ exited with 0 +++ [pid 6854] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6854, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=73 /* 0.73 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = 0 [ 248.237049][ T6930] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6971 attached , child_tidptr=0x5555693e0750) = 6971 [pid 6971] set_robust_list(0x5555693e0760, 24) = 0 [pid 6971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 6971] setpgid(0, 0) = 0 [pid 6971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6971] write(3, "1000", 4) = 4 [pid 6971] close(3) = 0 [pid 6971] write(1, "executing program\n", 18) = 18 [pid 6971] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6971] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 6971] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 6971] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6971] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6971] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 6972 attached [pid 6972] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6971] <... clone3 resumed> => {parent_tid=[6972]}, 88) = 6972 [pid 6972] <... rseq resumed>) = 0 [pid 6971] rt_sigprocmask(SIG_SETMASK, [], [pid 6972] set_robust_list(0x7ff7dbc929a0, 24 [pid 6971] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6972] <... set_robust_list resumed>) = 0 [pid 6971] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6972] rt_sigprocmask(SIG_SETMASK, [], [pid 6971] <... futex resumed>) = 0 [pid 6972] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6971] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6972] memfd_create("syzkaller", 0) = 3 [pid 6972] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 248.319195][ T6930] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6960] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6948] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6930] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6930] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 6930] ioctl(3, LOOP_CLR_FD) = 0 [ 248.583812][ T6930] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6930] close(3 [pid 6944] <... write resumed>) = 16777216 [pid 6944] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6944] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6944] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6944] close(3) = 0 [pid 6944] close(4) = 0 [pid 6944] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6944] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 248.859458][ T6944] loop3: detected capacity change from 0 to 32768 [pid 6972] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6960] <... write resumed>) = 16777216 [pid 6960] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6960] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6960] ioctl(4, LOOP_CLR_FD) = 0 [pid 6960] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6960] close(4 [pid 6930] <... close resumed>) = 0 [pid 6960] <... close resumed>) = 0 [pid 6930] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6960] close(3 [pid 6924] <... futex resumed>) = 0 [pid 6930] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6924] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6930] creat("./bus", 000 [pid 6924] <... futex resumed>) = 0 [pid 6924] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6930] <... creat resumed>) = 3 [pid 6930] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6924] <... futex resumed>) = 0 [pid 6930] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6924] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 248.975786][ T6944] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 248.985574][ T6944] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6924] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6924] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6924] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6980 attached [pid 6980] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6924] <... clone3 resumed> => {parent_tid=[6980]}, 88) = 6980 [pid 6980] <... rseq resumed>) = 0 [pid 6924] rt_sigprocmask(SIG_SETMASK, [], [pid 6980] set_robust_list(0x7ff7dbc719a0, 24 [pid 6924] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6980] <... set_robust_list resumed>) = 0 [pid 6924] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6980] rt_sigprocmask(SIG_SETMASK, [], [pid 6924] <... futex resumed>) = 0 [pid 6980] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6948] <... write resumed>) = 16777216 [pid 6924] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6980] memfd_create("syzkaller", 0) = 4 [pid 6980] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6948] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6948] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6948] ioctl(4, LOOP_SET_FD, 3 [pid 6944] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6944] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 6944] ioctl(3, LOOP_CLR_FD [pid 6948] <... ioctl resumed>) = 0 [pid 6948] close(3) = 0 [pid 6948] close(4) = 0 [pid 6948] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 249.187331][ T6944] bcachefs: bch2_fs_get_tree() error: EINVAL [ 249.188251][ T6948] loop0: detected capacity change from 0 to 32768 [pid 6948] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6944] <... ioctl resumed>) = 0 [pid 6944] close(3 [pid 6960] <... close resumed>) = 0 [pid 6960] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6953] <... futex resumed>) = 0 [pid 6960] creat("./bus", 000 [pid 6953] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6953] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6953] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6953] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6953] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[6988]}, 88) = 6988 [pid 6953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6953] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6953] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6988 attached [pid 6988] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 6988] set_robust_list(0x7ff7dbc719a0, 24) = 0 [ 249.391190][ T6948] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 6988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6988] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6988] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6953] <... futex resumed>) = 0 [pid 6953] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6953] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6988] memfd_create("syzkaller", 0) = 4 [pid 6988] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6972] <... write resumed>) = 16777216 [ 249.432365][ T6948] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6972] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6972] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6972] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6972] close(3) = 0 [pid 6972] close(4) = 0 [ 249.505881][ T6972] loop1: detected capacity change from 0 to 32768 [pid 6972] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 6972] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 6944] <... close resumed>) = 0 [pid 6944] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6944] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6942] <... futex resumed>) = 0 [pid 6942] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6942] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6980] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6944] <... futex resumed>) = 0 [pid 6944] creat("./bus", 000 [pid 6948] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6948] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6948] ioctl(3, LOOP_CLR_FD) = 0 [ 249.645174][ T6972] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 249.654590][ T6972] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 249.670569][ T6948] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6948] close(3 [pid 6942] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6942] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6942] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6942] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6996 attached => {parent_tid=[6996]}, 88) = 6996 [pid 6996] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6942] rt_sigprocmask(SIG_SETMASK, [], [pid 6996] <... rseq resumed>) = 0 [pid 6942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6996] set_robust_list(0x7ff7dbc719a0, 24 [pid 6942] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6996] <... set_robust_list resumed>) = 0 [pid 6942] <... futex resumed>) = 0 [pid 6996] rt_sigprocmask(SIG_SETMASK, [], [pid 6942] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6996] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6996] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 6996] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6942] <... futex resumed>) = 0 [pid 6942] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6996] memfd_create("syzkaller", 0 [pid 6942] <... futex resumed>) = 0 [pid 6996] <... memfd_create resumed>) = 4 [pid 6942] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6972] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 6972] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 6972] ioctl(3, LOOP_CLR_FD) = 0 [ 249.878095][ T6972] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 6972] close(3 [pid 6988] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6980] <... write resumed>) = 16777216 [pid 6948] <... close resumed>) = 0 [pid 6980] munmap(0x7ff7d3800000, 138412032) = 0 [pid 6948] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6980] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6948] <... futex resumed>) = 1 [pid 6943] <... futex resumed>) = 0 [pid 6980] <... openat resumed>) = 5 [pid 6948] creat("./bus", 000 [pid 6943] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6980] ioctl(5, LOOP_SET_FD, 4 [pid 6943] <... futex resumed>) = 0 [pid 6943] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6980] <... ioctl resumed>) = 0 [pid 6980] close(4) = 0 [pid 6980] close(5) = 0 [pid 6980] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 6980] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6943] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6943] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [ 250.125282][ T6980] loop4: detected capacity change from 0 to 32768 [ 250.149116][ T6980] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (6980) [pid 6943] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6943] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6943] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 6997 attached [pid 6997] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 6943] <... clone3 resumed> => {parent_tid=[6997]}, 88) = 6997 [pid 6997] <... rseq resumed>) = 0 [pid 6943] rt_sigprocmask(SIG_SETMASK, [], [pid 6997] set_robust_list(0x7ff7dbc719a0, 24 [pid 6943] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6930] <... write resumed>) = 16776704 [pid 6997] <... set_robust_list resumed>) = 0 [pid 6943] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6997] rt_sigprocmask(SIG_SETMASK, [], [pid 6943] <... futex resumed>) = 0 [pid 6997] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6972] <... close resumed>) = 0 [pid 6943] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6997] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 6972] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6997] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 6972] <... futex resumed>) = 1 [pid 6971] <... futex resumed>) = 0 [pid 6997] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6972] creat("./bus", 000 [pid 6971] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 6943] <... futex resumed>) = 0 [pid 6997] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6943] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 6930] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6997] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6943] <... futex resumed>) = 0 [pid 6930] <... futex resumed>) = 0 [pid 6997] memfd_create("syzkaller", 0 [pid 6971] <... futex resumed>) = 0 [pid 6943] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6930] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6971] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6997] <... memfd_create resumed>) = 4 [pid 6997] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6996] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6971] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6971] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 6971] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6971] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6971] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7002]}, 88) = 7002 [pid 6971] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6971] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6971] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7002 attached [ 250.224059][ T6980] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 250.258526][ T6980] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 7002] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7002] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7002] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7002] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6971] <... futex resumed>) = 0 [pid 6971] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6971] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7002] memfd_create("syzkaller", 0) = 4 [pid 7002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 6972] <... creat resumed>) = 3 [pid 6960] <... creat resumed>) = 3 [pid 6948] <... creat resumed>) = 3 [pid 6944] <... creat resumed>) = 3 [pid 6972] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6948] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6944] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6960] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6972] <... futex resumed>) = 0 [pid 6960] <... futex resumed>) = 0 [pid 6948] <... futex resumed>) = 0 [pid 6944] <... futex resumed>) = 0 [pid 6972] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6960] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6948] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 250.476561][ T6980] BTRFS info (device loop4): rebuilding free space tree [pid 6944] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6988] <... write resumed>) = 16777216 [pid 6988] munmap(0x7ff7d3800000, 138412032 [pid 6996] <... write resumed>) = 16777216 [pid 6988] <... munmap resumed>) = 0 [pid 6996] munmap(0x7ff7d3800000, 138412032 [pid 6988] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6996] <... munmap resumed>) = 0 [ 250.538419][ T6980] BTRFS info (device loop4): disabling free space tree [ 250.545393][ T6980] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 6996] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6988] <... openat resumed>) = 5 [pid 6996] <... openat resumed>) = 5 [pid 6988] ioctl(5, LOOP_SET_FD, 4 [pid 6996] ioctl(5, LOOP_SET_FD, 4 [pid 6988] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 6988] ioctl(5, LOOP_CLR_FD) = 0 [pid 6996] <... ioctl resumed>) = 0 [pid 6988] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 6988] close(5) = 0 [pid 6996] close(4 [pid 6988] close(4 [pid 6996] <... close resumed>) = 0 [pid 6996] close(5) = 0 [ 250.593282][ T6980] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 250.605772][ T6996] loop3: detected capacity change from 0 to 32768 [pid 6996] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 250.642668][ T6996] BTRFS: device /dev/loop3 (7:3) using temp-fsid 9e6afd31-dda3-4f4c-9ad2-3abf1f5c7f09 [ 250.697890][ T6996] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (6996) [ 250.708572][ T6980] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 250.738326][ T6996] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 250.788216][ T6996] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 6996] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 6997] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7002] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6988] <... close resumed>) = 0 [pid 6988] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6953] <... futex resumed>) = 0 [pid 6953] exit_group(0) = ? [pid 6960] <... futex resumed>) = ? [pid 6960] +++ exited with 0 +++ [pid 6980] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 6988] +++ exited with 0 +++ [pid 6953] +++ exited with 0 +++ [pid 6980] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6953, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=76 /* 0.76 s */} --- [pid 6980] <... openat resumed>) = 4 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6980] ioctl(4, LOOP_CLR_FD [pid 5845] <... restart_syscall resumed>) = 0 [pid 6980] <... ioctl resumed>) = 0 [pid 6980] close(4 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7029 attached , child_tidptr=0x5555693e0750) = 7029 executing program [pid 7029] set_robust_list(0x5555693e0760, 24) = 0 [pid 7029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7029] setpgid(0, 0) = 0 [pid 7029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7029] write(3, "1000", 4) = 4 [pid 7029] close(3) = 0 [pid 7029] write(1, "executing program\n", 18) = 18 [pid 7029] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7029] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7029] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7029] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7029] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7029] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7032 attached => {parent_tid=[7032]}, 88) = 7032 [pid 7029] rt_sigprocmask(SIG_SETMASK, [], [pid 7032] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7029] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7032] <... rseq resumed>) = 0 [ 251.004998][ T6996] BTRFS info (device loop3): rebuilding free space tree [ 251.025183][ T6996] BTRFS info (device loop3): disabling free space tree [ 251.032337][ T6996] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 251.042865][ T6996] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7032] set_robust_list(0x7ff7dbc929a0, 24 [pid 7029] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7032] <... set_robust_list resumed>) = 0 [pid 7032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7032] memfd_create("syzkaller", 0) = 3 [pid 7032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 251.174644][ T6996] BTRFS info (device loop3): last unmount of filesystem 9e6afd31-dda3-4f4c-9ad2-3abf1f5c7f09 [pid 7029] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6980] <... close resumed>) = 0 [pid 7002] <... write resumed>) = 16777216 [pid 6996] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7002] munmap(0x7ff7d3800000, 138412032 [pid 6980] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6980] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6924] <... futex resumed>) = 0 [pid 6924] exit_group(0 [pid 6980] <... futex resumed>) = ? [pid 6924] <... exit_group resumed>) = ? [pid 6980] +++ exited with 0 +++ [pid 6930] <... futex resumed>) = ? [pid 6996] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6930] +++ exited with 0 +++ [pid 6924] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6924, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=120 /* 1.20 s */} --- [pid 6996] <... openat resumed>) = 4 [pid 6996] ioctl(4, LOOP_CLR_FD [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6996] <... ioctl resumed>) = 0 [pid 6996] close(4 [pid 5850] <... openat resumed>) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 7002] <... munmap resumed>) = 0 [pid 5850] close(3 [pid 7002] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5850] <... close resumed>) = 0 [pid 7002] <... openat resumed>) = 5 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7033 attached [pid 7002] ioctl(5, LOOP_SET_FD, 4 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 7033 [pid 7033] set_robust_list(0x5555693e0760, 24) = 0 [pid 7033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7002] <... ioctl resumed>) = 0 [pid 7002] close(4 [pid 7033] <... prctl resumed>) = 0 [pid 7002] <... close resumed>) = 0 [pid 7033] setpgid(0, 0 [pid 7002] close(5 [pid 7033] <... setpgid resumed>) = 0 [pid 7002] <... close resumed>) = 0 [pid 7002] mkdir("./bus", 0777 [pid 7033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7002] <... mkdir resumed>) = -1 EEXIST (File exists) [ 251.344632][ T7002] loop1: detected capacity change from 0 to 32768 [pid 7002] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7033] <... openat resumed>) = 3 [pid 7033] write(3, "1000", 4) = 4 [pid 7033] close(3) = 0 [pid 7033] write(1, "executing program\n", 18executing program ) = 18 [pid 7033] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7033] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7033] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [ 251.399537][ T7002] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7002) [pid 7033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7033] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6997] <... write resumed>) = 16777216 [pid 7033] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6997] munmap(0x7ff7d3800000, 138412032 [pid 7033] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7034 attached => {parent_tid=[7034]}, 88) = 7034 [pid 7034] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7033] rt_sigprocmask(SIG_SETMASK, [], [pid 6997] <... munmap resumed>) = 0 [pid 7034] <... rseq resumed>) = 0 [pid 7033] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7034] set_robust_list(0x7ff7dbc929a0, 24 [pid 7033] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7034] <... set_robust_list resumed>) = 0 [pid 7033] <... futex resumed>) = 0 [pid 7034] rt_sigprocmask(SIG_SETMASK, [], [pid 7033] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7034] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7034] memfd_create("syzkaller", 0) = 3 [pid 7034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 251.459365][ T7002] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 251.477208][ T7002] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 6996] <... close resumed>) = 0 [pid 6996] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6942] <... futex resumed>) = 0 [pid 6996] <... futex resumed>) = 1 [pid 6942] exit_group(0 [pid 6996] ???( [pid 6942] <... exit_group resumed>) = ? [pid 6996] <... ??? resumed>) = ? [pid 6944] <... futex resumed>) = ? [pid 6996] +++ exited with 0 +++ [pid 6944] +++ exited with 0 +++ [pid 6942] +++ exited with 0 +++ [pid 6997] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 6997] ioctl(5, LOOP_SET_FD, 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6942, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=75 /* 0.75 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6997] <... ioctl resumed>) = 0 [pid 7032] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6997] close(4) = 0 [pid 6997] close(5) = 0 [pid 6997] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 251.554223][ T6997] loop0: detected capacity change from 0 to 32768 [ 251.584622][ T6997] BTRFS: device /dev/loop0 (7:0) using temp-fsid 83272632-38ad-4b08-8466-ecd84584cd08 [pid 6997] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7049 [ 251.595873][ T6997] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (6997) ./strace-static-x86_64: Process 7049 attached [pid 7049] set_robust_list(0x5555693e0760, 24) = 0 [pid 7049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7049] setpgid(0, 0) = 0 [pid 7049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7049] write(3, "1000", 4) = 4 [ 251.670675][ T6997] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 251.705216][ T7002] BTRFS info (device loop1): rebuilding free space tree executing program [pid 7049] close(3) = 0 [pid 7049] write(1, "executing program\n", 18) = 18 [pid 7049] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7049] <... futex resumed>) = 0 [pid 7049] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7049] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7049] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7049] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7049] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7052]}, 88) = 7052 [pid 7049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7049] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7052 attached ) = 0 [pid 7049] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7052] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7052] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7052] memfd_create("syzkaller", 0) = 3 [pid 7052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 251.729787][ T6997] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 251.769334][ T7002] BTRFS info (device loop1): disabling free space tree [ 251.801567][ T7002] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 251.868154][ T7002] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 251.964371][ T6997] BTRFS info (device loop0): rebuilding free space tree [ 251.973774][ T7002] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7034] <... write resumed>) = 16777216 [pid 7034] munmap(0x7ff7d3800000, 138412032) = 0 [ 252.034295][ T6997] BTRFS info (device loop0): disabling free space tree [ 252.069757][ T6997] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7034] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7032] <... write resumed>) = 16777216 [pid 7034] <... openat resumed>) = 4 [pid 7034] ioctl(4, LOOP_SET_FD, 3 [pid 7032] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7034] <... ioctl resumed>) = 0 [pid 7034] close(3 [pid 7032] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7034] <... close resumed>) = 0 [pid 7034] close(4 [pid 7032] <... openat resumed>) = 4 [pid 7034] <... close resumed>) = 0 [pid 7032] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7034] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7032] ioctl(4, LOOP_CLR_FD [pid 7034] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7032] <... ioctl resumed>) = 0 [pid 7002] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 252.102949][ T6997] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 252.115520][ T7034] loop4: detected capacity change from 0 to 32768 [pid 7002] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7002] ioctl(4, LOOP_CLR_FD) = 0 [pid 7002] close(4) = 0 [pid 7002] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6971] <... futex resumed>) = 0 [pid 7002] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6971] exit_group(0 [pid 7002] <... futex resumed>) = ? [pid 6971] <... exit_group resumed>) = ? [pid 7002] +++ exited with 0 +++ [pid 6972] <... futex resumed>) = ? [pid 7032] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 6972] +++ exited with 0 +++ [pid 6971] +++ exited with 0 +++ [pid 7032] close(4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6971, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=78 /* 0.78 s */} --- [pid 7032] <... close resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 7032] close(3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = 0 [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7071 ./strace-static-x86_64: Process 7071 attached [pid 7071] set_robust_list(0x5555693e0760, 24) = 0 [pid 7071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7071] setpgid(0, 0) = 0 [pid 7071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7071] write(3, "1000", 4) = 4 [ 252.154381][ T6997] BTRFS info (device loop0): last unmount of filesystem 83272632-38ad-4b08-8466-ecd84584cd08 [pid 7071] close(3) = 0 [pid 7071] write(1, "executing program\n", 18executing program ) = 18 [pid 7071] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7071] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7071] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7071] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7071] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7071] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7077 attached => {parent_tid=[7077]}, 88) = 7077 [pid 7071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6997] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7071] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7071] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7077] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 6997] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7077] <... rseq resumed>) = 0 [pid 7077] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 6997] <... openat resumed>) = 4 [pid 7077] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7077] memfd_create("syzkaller", 0) = 3 [pid 6997] ioctl(4, LOOP_CLR_FD [pid 7077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6997] <... ioctl resumed>) = 0 [pid 7077] <... mmap resumed>) = 0x7ff7d3800000 [ 252.304315][ T7034] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 252.315459][ T7034] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 6997] close(4 [pid 7032] <... close resumed>) = 0 [pid 7032] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7029] <... futex resumed>) = 0 [pid 7029] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7029] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7032] creat("./bus", 000) = 3 [pid 7032] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7029] <... futex resumed>) = 0 [pid 7029] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7029] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7032] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7052] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7029] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7029] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7029] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7029] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7029] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7078 attached => {parent_tid=[7078]}, 88) = 7078 [pid 7078] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7029] rt_sigprocmask(SIG_SETMASK, [], [pid 7078] <... rseq resumed>) = 0 [pid 7029] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7078] set_robust_list(0x7ff7dbc719a0, 24 [pid 7029] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7078] <... set_robust_list resumed>) = 0 [pid 7029] <... futex resumed>) = 0 [pid 7078] rt_sigprocmask(SIG_SETMASK, [], [pid 7029] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7078] memfd_create("syzkaller", 0) = 4 [pid 7078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7034] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 7034] ioctl(3, LOOP_CLR_FD) = 0 [ 252.513005][ T7034] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7034] close(3 [pid 6997] <... close resumed>) = 0 [pid 6997] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 6943] <... futex resumed>) = 0 [pid 6943] exit_group(0) = ? [pid 6948] <... futex resumed>) = ? [pid 6948] +++ exited with 0 +++ [pid 6997] <... futex resumed>) = ? [pid 5843] kill(-6943, SIGKILL) = 0 [pid 5843] kill(6943, SIGKILL) = 0 [pid 7077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 6997] +++ exited with 0 +++ [pid 6943] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6943, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=95 /* 0.95 s */} --- [pid 5843] restart_syscall(<... resuming interrupted kill ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7034] <... close resumed>) = 0 [pid 5843] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7079 attached [pid 7079] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 7079 executing program [pid 7079] <... set_robust_list resumed>) = 0 [pid 7079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7079] setpgid(0, 0) = 0 [pid 7079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7079] write(3, "1000", 4) = 4 [pid 7079] close(3) = 0 [pid 7079] write(1, "executing program\n", 18) = 18 [pid 7079] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7079] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7034] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7034] <... futex resumed>) = 1 [pid 7033] <... futex resumed>) = 0 [pid 7034] creat("./bus", 000 [pid 7033] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7033] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7079] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7080 attached [pid 7052] <... write resumed>) = 16777216 [pid 7080] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7079] <... clone3 resumed> => {parent_tid=[7080]}, 88) = 7080 [pid 7052] munmap(0x7ff7d3800000, 138412032 [pid 7080] <... rseq resumed>) = 0 [pid 7079] rt_sigprocmask(SIG_SETMASK, [], [pid 7080] set_robust_list(0x7ff7dbc929a0, 24 [pid 7079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7080] <... set_robust_list resumed>) = 0 [pid 7079] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] rt_sigprocmask(SIG_SETMASK, [], [pid 7079] <... futex resumed>) = 0 [pid 7080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7079] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7080] memfd_create("syzkaller", 0) = 3 [pid 7080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7052] <... munmap resumed>) = 0 [pid 7052] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7033] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7033] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7052] ioctl(4, LOOP_SET_FD, 3 [pid 7033] <... futex resumed>) = 0 [pid 7033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7033] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7033] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7033] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7081 attached => {parent_tid=[7081]}, 88) = 7081 [pid 7033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7033] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7033] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7081] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7081] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7081] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7081] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7033] <... futex resumed>) = 0 [pid 7081] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7033] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7033] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7078] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7081] memfd_create("syzkaller", 0) = 4 [pid 7081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7052] <... ioctl resumed>) = 0 [pid 7052] close(3) = 0 [pid 7052] close(4) = 0 [pid 7052] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 253.042918][ T7052] loop3: detected capacity change from 0 to 32768 [ 253.219919][ T7052] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 253.277856][ T7052] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7052] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7081] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7077] <... write resumed>) = 16777216 [pid 7077] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7078] <... write resumed>) = 16777216 [pid 7077] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7078] munmap(0x7ff7d3800000, 138412032 [pid 7077] ioctl(4, LOOP_SET_FD, 3 [pid 7080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7077] <... ioctl resumed>) = 0 [pid 7078] <... munmap resumed>) = 0 [pid 7077] close(3 [pid 7052] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7078] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7077] <... close resumed>) = 0 [pid 7052] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 253.525334][ T7077] loop1: detected capacity change from 0 to 32768 [ 253.537085][ T7052] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7077] close(4 [pid 7078] <... openat resumed>) = 5 [pid 7077] <... close resumed>) = 0 [pid 7052] <... openat resumed>) = 3 [pid 7078] ioctl(5, LOOP_SET_FD, 4 [pid 7077] mkdir("./file1", 0777 [pid 7052] ioctl(3, LOOP_CLR_FD [pid 7078] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 7077] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7052] <... ioctl resumed>) = 0 [pid 7078] ioctl(5, LOOP_CLR_FD [pid 7077] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7052] close(3 [pid 7078] <... ioctl resumed>) = 0 [pid 7078] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7078] close(5) = 0 [pid 7078] close(4 [pid 7032] <... write resumed>) = 16776704 [pid 7032] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7032] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7052] <... close resumed>) = 0 [pid 7052] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7049] <... futex resumed>) = 0 [pid 7049] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7052] creat("./bus", 000 [pid 7049] <... futex resumed>) = 0 [pid 7049] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7049] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7049] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7049] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7081] <... write resumed>) = 16777216 [pid 7049] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7096]}, 88) = 7096 [pid 7081] munmap(0x7ff7d3800000, 138412032 [pid 7049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7049] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7049] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7096 attached [pid 7096] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7096] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7096] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7096] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7049] <... futex resumed>) = 0 [pid 7049] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 253.805344][ T7077] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 253.815744][ T7077] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7049] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7096] memfd_create("syzkaller", 0) = 4 [pid 7081] <... munmap resumed>) = 0 [pid 7096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7081] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7081] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7081] close(4) = 0 [pid 7081] close(5) = 0 [pid 7081] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 253.882450][ T7081] loop4: detected capacity change from 0 to 32768 [ 253.925288][ T7081] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7081) [pid 7081] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7077] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7077] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 7077] ioctl(3, LOOP_CLR_FD) = 0 [ 253.999000][ T7077] bcachefs: bch2_fs_get_tree() error: EINVAL [ 254.008998][ T7081] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7077] close(3 [pid 7078] <... close resumed>) = 0 [pid 7078] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7029] <... futex resumed>) = 0 [pid 7078] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7029] exit_group(0 [pid 7032] <... futex resumed>) = ? [pid 7029] <... exit_group resumed>) = ? [pid 7032] +++ exited with 0 +++ [pid 7078] <... futex resumed>) = ? [pid 7078] +++ exited with 0 +++ [pid 7029] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7029, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=100 /* 1.00 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [ 254.057846][ T7081] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 7100 attached , child_tidptr=0x5555693e0750) = 7100 [pid 7100] set_robust_list(0x5555693e0760, 24) = 0 [pid 7100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7100] setpgid(0, 0) = 0 [pid 7100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7100] write(3, "1000", 4) = 4 [pid 7100] close(3) = 0 [pid 7100] write(1, "executing program\n", 18) = 18 [pid 7100] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7100] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7100] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7104 attached [pid 7080] <... write resumed>) = 16777216 [pid 7100] <... clone3 resumed> => {parent_tid=[7104]}, 88) = 7104 [pid 7100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7100] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7100] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7080] munmap(0x7ff7d3800000, 138412032 [pid 7104] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7104] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7104] memfd_create("syzkaller", 0) = 3 [pid 7104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7080] <... munmap resumed>) = 0 [pid 7080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7080] ioctl(4, LOOP_SET_FD, 3 [pid 7034] <... creat resumed>) = 3 [pid 7034] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7034] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7052] <... creat resumed>) = 3 [pid 7052] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] <... ioctl resumed>) = 0 [pid 7052] <... futex resumed>) = 0 [pid 7080] close(3 [pid 7052] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7080] <... close resumed>) = 0 [pid 7077] <... close resumed>) = 0 [pid 7080] close(4) = 0 [pid 7077] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7077] <... futex resumed>) = 1 [pid 7071] <... futex resumed>) = 0 [pid 7080] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7077] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7071] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7071] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7077] creat("./bus", 000) = 3 [pid 7077] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7071] <... futex resumed>) = 0 [pid 7071] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7077] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [ 254.228013][ T7080] loop0: detected capacity change from 0 to 32768 [ 254.248066][ T7081] BTRFS info (device loop4): rebuilding free space tree [pid 7071] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7071] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 7071] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7071] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7071] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7071] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7122 attached => {parent_tid=[7122]}, 88) = 7122 [pid 7071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7071] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7071] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7122] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7122] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7122] memfd_create("syzkaller", 0) = 4 [pid 7122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 254.331885][ T7081] BTRFS info (device loop4): disabling free space tree [ 254.353919][ T7081] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 254.364595][ T7081] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 254.395979][ T7080] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 254.468841][ T7080] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7096] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7080] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7080] ioctl(3, LOOP_CLR_FD) = 0 [ 254.713135][ T7080] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7080] close(3 [pid 7096] <... write resumed>) = 16777216 [pid 7096] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7096] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 7096] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7096] close(4) = 0 [pid 7122] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7096] close(5) = 0 [ 254.878701][ T7096] loop3: detected capacity change from 0 to 32768 [pid 7096] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 254.919363][ T7096] BTRFS: device /dev/loop3 (7:3) using temp-fsid 26935483-1e4d-4af8-b806-8cd39fe6c96f [ 254.937770][ T7096] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7096) [pid 7096] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7080] <... close resumed>) = 0 [ 255.007759][ T7096] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7080] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7079] <... futex resumed>) = 0 [pid 7080] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7079] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7080] <... futex resumed>) = 0 [pid 7079] <... futex resumed>) = 1 [pid 7080] creat("./bus", 000 [pid 7079] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7104] <... write resumed>) = 16777216 [pid 7104] munmap(0x7ff7d3800000, 138412032) = 0 [ 255.049512][ T7096] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 7104] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7079] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7104] <... openat resumed>) = 4 [pid 7079] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7104] ioctl(4, LOOP_SET_FD, 3 [pid 7079] <... futex resumed>) = 0 [pid 7104] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 7079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7104] ioctl(4, LOOP_CLR_FD [pid 7079] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7104] <... ioctl resumed>) = 0 [pid 7079] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7136 attached [pid 7104] ioctl(4, LOOP_SET_FD, 3 [pid 7136] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7104] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 7079] <... clone3 resumed> => {parent_tid=[7136]}, 88) = 7136 [pid 7136] <... rseq resumed>) = 0 [pid 7104] close(4 [pid 7079] rt_sigprocmask(SIG_SETMASK, [], [pid 7136] set_robust_list(0x7ff7dbc719a0, 24 [pid 7104] <... close resumed>) = 0 [pid 7079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7136] <... set_robust_list resumed>) = 0 [pid 7104] close(3 [pid 7079] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7136] rt_sigprocmask(SIG_SETMASK, [], [pid 7079] <... futex resumed>) = 0 [pid 7136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7079] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7136] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7136] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7079] <... futex resumed>) = 0 [pid 7136] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7079] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7136] memfd_create("syzkaller", 0 [pid 7079] <... futex resumed>) = 0 [pid 7136] <... memfd_create resumed>) = 4 [pid 7079] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 255.155106][ T7096] BTRFS info (device loop3): rebuilding free space tree [ 255.225652][ T7096] BTRFS info (device loop3): disabling free space tree [ 255.238163][ T7096] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7077] <... write resumed>) = 16776704 [pid 7077] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 255.268048][ T7096] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 255.298215][ T7081] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7077] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7122] <... write resumed>) = 16777216 [pid 7104] <... close resumed>) = 0 [pid 7122] munmap(0x7ff7d3800000, 138412032 [pid 7104] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7104] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7100] <... futex resumed>) = 0 [pid 7100] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7100] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7104] <... futex resumed>) = 0 [pid 7104] creat("./bus", 000 [pid 7136] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7122] <... munmap resumed>) = 0 [pid 7081] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7081] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7122] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 7122] ioctl(5, LOOP_SET_FD, 4 [pid 7100] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7100] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7100] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7140]}, 88) = 7140 [pid 7100] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7140 attached NULL, 8) = 0 [pid 7100] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7100] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7081] ioctl(4, LOOP_CLR_FD [pid 7140] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7081] <... ioctl resumed>) = 0 [pid 7140] <... rseq resumed>) = 0 [pid 7081] close(4 [pid 7140] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7140] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7140] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7140] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7122] <... ioctl resumed>) = 0 [pid 7140] <... futex resumed>) = 1 [pid 7122] close(4 [pid 7100] <... futex resumed>) = 0 [pid 7140] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7122] <... close resumed>) = 0 [pid 7100] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7100] <... futex resumed>) = 0 [pid 7140] memfd_create("syzkaller", 0 [pid 7122] close(5 [pid 7140] <... memfd_create resumed>) = 4 [pid 7100] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7122] <... close resumed>) = 0 [pid 7140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7122] mkdir("./bus", 0777 [pid 7140] <... mmap resumed>) = 0x7ff7d3800000 [pid 7122] <... mkdir resumed>) = -1 EEXIST (File exists) [ 255.459384][ T7122] loop1: detected capacity change from 0 to 32768 [ 255.515257][ T7122] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7122) [ 255.596159][ T7122] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 255.625778][ T7122] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 7122] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7140] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7104] <... creat resumed>) = 3 [pid 7080] <... creat resumed>) = 3 [pid 7104] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7080] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7104] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7080] <... futex resumed>) = 0 [ 255.809093][ T7096] BTRFS info (device loop3): last unmount of filesystem 26935483-1e4d-4af8-b806-8cd39fe6c96f [pid 7080] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7081] <... close resumed>) = 0 [pid 7081] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7033] <... futex resumed>) = 0 [pid 7033] exit_group(0) = ? [pid 7034] <... futex resumed>) = ? [pid 7034] +++ exited with 0 +++ [pid 7081] +++ exited with 0 +++ [pid 7033] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7033, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=107 /* 1.07 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7157 ./strace-static-x86_64: Process 7157 attached [ 255.869209][ T7122] BTRFS info (device loop1): rebuilding free space tree [ 255.906478][ T7122] BTRFS info (device loop1): disabling free space tree [pid 7157] set_robust_list(0x5555693e0760, 24 [pid 7096] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7157] <... set_robust_list resumed>) = 0 [pid 7157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7096] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7096] ioctl(4, LOOP_CLR_FD) = 0 [pid 7096] close(4 [pid 7157] <... prctl resumed>) = 0 [pid 7157] setpgid(0, 0) = 0 [pid 7157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7157] write(3, "1000", 4) = 4 [ 255.938185][ T7122] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7157] close(3) = 0 [pid 7157] write(1, "executing program\n", 18executing program ) = 18 [pid 7157] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7157] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7157] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7157] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7157] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7158 attached => {parent_tid=[7158]}, 88) = 7158 [pid 7157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7158] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7157] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7158] <... rseq resumed>) = 0 [pid 7158] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7158] rt_sigprocmask(SIG_SETMASK, [], [pid 7157] <... futex resumed>) = 0 [pid 7158] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7157] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7158] memfd_create("syzkaller", 0) = 3 [pid 7158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 256.001842][ T7122] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7136] <... write resumed>) = 16777216 [pid 7136] munmap(0x7ff7d3800000, 138412032) = 0 [ 256.086761][ T7122] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7140] <... write resumed>) = 16777216 [pid 7140] munmap(0x7ff7d3800000, 138412032 [pid 7136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 7136] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7136] close(4) = 0 [pid 7136] close(5) = 0 [pid 7140] <... munmap resumed>) = 0 [pid 7136] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7136] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7140] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7122] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7140] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7122] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7140] ioctl(5, LOOP_CLR_FD) = 0 [pid 7122] <... openat resumed>) = 4 [pid 7122] ioctl(4, LOOP_CLR_FD) = 0 [pid 7140] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [ 256.153756][ T7136] loop0: detected capacity change from 0 to 32768 [ 256.188168][ T7136] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7136) [pid 7122] close(4 [pid 7140] close(5) = 0 [pid 7140] close(4 [pid 7096] <... close resumed>) = 0 [pid 7096] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7049] <... futex resumed>) = 0 [pid 7049] exit_group(0 [pid 7052] <... futex resumed>) = ? [pid 7049] <... exit_group resumed>) = ? [pid 7096] +++ exited with 0 +++ [ 256.237513][ T7136] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7052] +++ exited with 0 +++ [pid 7049] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7049, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=84 /* 0.84 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7159 attached [pid 7159] set_robust_list(0x5555693e0760, 24 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 7159 [pid 7159] <... set_robust_list resumed>) = 0 [pid 7159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7159] setpgid(0, 0) = 0 [pid 7159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7159] write(3, "1000", 4) = 4 [pid 7159] close(3) = 0 [pid 7159] write(1, "executing program\n", 18executing program [ 256.287368][ T7136] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm ) = 18 [pid 7159] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7159] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7159] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7159] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7159] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7170 attached => {parent_tid=[7170]}, 88) = 7170 [pid 7170] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7159] rt_sigprocmask(SIG_SETMASK, [], [pid 7170] <... rseq resumed>) = 0 [pid 7159] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7170] set_robust_list(0x7ff7dbc929a0, 24 [pid 7159] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7170] <... set_robust_list resumed>) = 0 [pid 7159] <... futex resumed>) = 0 [pid 7170] rt_sigprocmask(SIG_SETMASK, [], [pid 7159] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7170] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7170] memfd_create("syzkaller", 0) = 3 [pid 7170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 256.492809][ T7136] BTRFS info (device loop0): rebuilding free space tree [ 256.528849][ T7136] BTRFS info (device loop0): disabling free space tree [ 256.535837][ T7136] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7140] <... close resumed>) = 0 [pid 7140] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7100] <... futex resumed>) = 0 [pid 7100] exit_group(0) = ? [pid 7140] +++ exited with 0 +++ [pid 7104] <... futex resumed>) = ? [pid 7104] +++ exited with 0 +++ [pid 7100] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7100, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=68 /* 0.68 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [ 256.564769][ T7136] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7177 attached , child_tidptr=0x5555693e0750) = 7177 [pid 7177] set_robust_list(0x5555693e0760, 24) = 0 [pid 7177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7177] setpgid(0, 0) = 0 [pid 7177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7177] write(3, "1000", 4) = 4 [pid 7177] close(3) = 0 [pid 7177] write(1, "executing program\n", 18) = 18 [pid 7177] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7177] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7177] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7177] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7178]}, 88) = 7178 [pid 7177] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7177] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7178 attached [pid 7178] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [ 256.615193][ T7136] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7178] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7178] rt_sigprocmask(SIG_SETMASK, [], [pid 7122] <... close resumed>) = 0 [pid 7178] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7178] memfd_create("syzkaller", 0) = 3 [pid 7178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7136] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7122] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7136] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7122] <... futex resumed>) = 1 [pid 7071] <... futex resumed>) = 0 [pid 7071] exit_group(0) = ? [pid 7077] <... futex resumed>) = ? [pid 7077] +++ exited with 0 +++ [pid 7136] <... openat resumed>) = 4 [pid 7136] ioctl(4, LOOP_CLR_FD) = 0 [pid 7136] close(4 [pid 7122] +++ exited with 0 +++ [pid 7071] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7071, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=116 /* 1.16 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7179 ./strace-static-x86_64: Process 7179 attached [pid 7179] set_robust_list(0x5555693e0760, 24) = 0 [pid 7179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7179] setpgid(0, 0) = 0 [pid 7179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7179] write(3, "1000", 4) = 4 [pid 7179] close(3) = 0 executing program [pid 7179] write(1, "executing program\n", 18) = 18 [pid 7179] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7179] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7179] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7179] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7179] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7180 attached => {parent_tid=[7180]}, 88) = 7180 [pid 7180] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7179] rt_sigprocmask(SIG_SETMASK, [], [pid 7180] <... rseq resumed>) = 0 [pid 7179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7180] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7179] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7179] <... futex resumed>) = 0 [pid 7180] memfd_create("syzkaller", 0 [pid 7179] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7180] <... memfd_create resumed>) = 3 [pid 7180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7136] <... close resumed>) = 0 [pid 7136] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7136] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7079] <... futex resumed>) = 0 [pid 7079] exit_group(0 [pid 7136] <... futex resumed>) = ? [pid 7080] <... futex resumed>) = ? [pid 7079] <... exit_group resumed>) = ? [pid 7136] +++ exited with 0 +++ [pid 7080] +++ exited with 0 +++ [pid 7079] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7079, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=100 /* 1.00 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7181 attached [pid 7181] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 7181 [pid 7181] <... set_robust_list resumed>) = 0 [pid 7181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7181] setpgid(0, 0) = 0 [pid 7181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7181] write(3, "1000", 4) = 4 [pid 7181] close(3) = 0 [pid 7181] write(1, "executing program\n", 18executing program ) = 18 [pid 7181] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7181] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7181] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7181] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7181] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7181] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7182 attached [pid 7182] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7181] <... clone3 resumed> => {parent_tid=[7182]}, 88) = 7182 [pid 7158] <... write resumed>) = 16777216 [pid 7182] <... rseq resumed>) = 0 [pid 7181] rt_sigprocmask(SIG_SETMASK, [], [pid 7182] set_robust_list(0x7ff7dbc929a0, 24 [pid 7181] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7182] <... set_robust_list resumed>) = 0 [pid 7181] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7182] rt_sigprocmask(SIG_SETMASK, [], [pid 7181] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7182] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7182] memfd_create("syzkaller", 0) = 3 [pid 7158] munmap(0x7ff7d3800000, 138412032 [pid 7182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7158] <... munmap resumed>) = 0 [pid 7158] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7158] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7158] close(3) = 0 [pid 7158] close(4) = 0 [pid 7158] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 257.228777][ T7158] loop4: detected capacity change from 0 to 32768 [pid 7158] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7170] <... write resumed>) = 16777216 [pid 7170] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7170] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7170] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7170] close(3) = 0 [pid 7170] close(4) = 0 [pid 7170] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 257.331223][ T7170] loop3: detected capacity change from 0 to 32768 [ 257.367888][ T7158] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 257.378970][ T7158] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7170] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 257.493802][ T7170] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 257.525248][ T7170] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7182] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7178] <... write resumed>) = 16777216 [pid 7158] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7158] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 7158] ioctl(3, LOOP_CLR_FD) = 0 [pid 7158] close(3 [pid 7178] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7178] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7180] <... write resumed>) = 16777216 [pid 7178] <... openat resumed>) = 4 [pid 7178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7178] ioctl(4, LOOP_CLR_FD) = 0 [ 257.599233][ T7158] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7178] close(4) = 0 [pid 7178] close(3 [pid 7180] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7180] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7180] close(3) = 0 [pid 7180] close(4) = 0 [pid 7180] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7180] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7170] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7170] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 7170] ioctl(3, LOOP_CLR_FD) = 0 [ 257.729885][ T7180] loop1: detected capacity change from 0 to 32768 [ 257.765353][ T7170] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7170] close(3 [pid 7182] <... write resumed>) = 16777216 [pid 7182] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 257.887490][ T7180] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 257.897114][ T7180] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7182] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7158] <... close resumed>) = 0 [pid 7158] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7157] <... futex resumed>) = 0 [pid 7157] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7157] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7158] <... futex resumed>) = 1 [pid 7158] creat("./bus", 000) = 3 [pid 7158] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7157] <... futex resumed>) = 0 [pid 7158] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7157] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7157] <... futex resumed>) = 0 [pid 7157] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7158] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7182] close(3) = 0 [pid 7182] close(4) = 0 [pid 7182] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7178] <... close resumed>) = 0 [ 257.940393][ T7182] loop0: detected capacity change from 0 to 32768 [pid 7182] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7178] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7177] <... futex resumed>) = 0 [pid 7178] creat("./bus", 000 [pid 7177] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7157] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7157] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7157] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7157] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7205 attached => {parent_tid=[7205]}, 88) = 7205 [pid 7157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7157] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7205] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7157] <... futex resumed>) = 0 [pid 7205] <... rseq resumed>) = 0 [pid 7205] set_robust_list(0x7ff7dbc719a0, 24 [pid 7157] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7205] <... set_robust_list resumed>) = 0 [pid 7205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7205] memfd_create("syzkaller", 0) = 4 [pid 7205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7170] <... close resumed>) = 0 [pid 7170] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7159] <... futex resumed>) = 0 [pid 7159] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7170] creat("./bus", 000 [pid 7159] <... futex resumed>) = 0 [pid 7159] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7177] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7177] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7177] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7177] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7210 attached => {parent_tid=[7210]}, 88) = 7210 [pid 7177] rt_sigprocmask(SIG_SETMASK, [], [pid 7210] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7210] set_robust_list(0x7ff7dbc719a0, 24 [pid 7159] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7177] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7159] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7177] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7210] <... set_robust_list resumed>) = 0 [pid 7177] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7210] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7210] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7210] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7177] <... futex resumed>) = 0 [pid 7210] memfd_create("syzkaller", 0 [pid 7177] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7159] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7210] <... memfd_create resumed>) = 4 [pid 7177] <... futex resumed>) = 0 [pid 7210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7177] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7210] <... mmap resumed>) = 0x7ff7d3800000 [pid 7159] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7180] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7159] <... mprotect resumed>) = 0 [pid 7159] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7180] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7159] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7180] <... openat resumed>) = 3 [pid 7180] ioctl(3, LOOP_CLR_FD) = 0 [pid 7180] close(3 [ 258.118152][ T7180] bcachefs: bch2_fs_get_tree() error: EINVAL [ 258.142614][ T7182] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7213 attached [pid 7213] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7159] <... clone3 resumed> => {parent_tid=[7213]}, 88) = 7213 [pid 7213] <... rseq resumed>) = 0 [pid 7213] set_robust_list(0x7ff7dbc719a0, 24 [pid 7159] rt_sigprocmask(SIG_SETMASK, [], [pid 7213] <... set_robust_list resumed>) = 0 [pid 7159] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7213] rt_sigprocmask(SIG_SETMASK, [], [pid 7159] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7213] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7213] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7159] <... futex resumed>) = 0 [pid 7159] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7213] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7213] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7159] <... futex resumed>) = 0 [pid 7213] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7159] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7159] <... futex resumed>) = 0 [pid 7213] memfd_create("syzkaller", 0 [pid 7159] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7213] <... memfd_create resumed>) = 4 [pid 7213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 258.214770][ T7182] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7205] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7180] <... close resumed>) = 0 [pid 7180] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7179] <... futex resumed>) = 0 [pid 7180] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 7179] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7180] creat("./bus", 000 [pid 7179] <... futex resumed>) = 0 [pid 7179] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7182] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7182] ioctl(3, LOOP_CLR_FD) = 0 [ 258.491912][ T7182] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7182] close(3 [pid 7179] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7179] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7179] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7179] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7214 attached [pid 7214] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7179] <... clone3 resumed> => {parent_tid=[7214]}, 88) = 7214 [pid 7214] <... rseq resumed>) = 0 [pid 7179] rt_sigprocmask(SIG_SETMASK, [], [pid 7214] set_robust_list(0x7ff7dbc719a0, 24 [pid 7179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7214] <... set_robust_list resumed>) = 0 [pid 7179] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7214] rt_sigprocmask(SIG_SETMASK, [], [pid 7179] <... futex resumed>) = 0 [pid 7214] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7179] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7214] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7214] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7179] <... futex resumed>) = 0 [pid 7214] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7179] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7214] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7179] <... futex resumed>) = 0 [pid 7214] memfd_create("syzkaller", 0 [pid 7179] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7214] <... memfd_create resumed>) = 4 [pid 7214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7210] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7213] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7182] <... close resumed>) = 0 [pid 7182] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7182] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7181] <... futex resumed>) = 0 [pid 7181] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7182] <... futex resumed>) = 0 [pid 7181] <... futex resumed>) = 1 [pid 7182] creat("./bus", 000 [pid 7181] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7205] <... write resumed>) = 16777216 [pid 7181] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7205] munmap(0x7ff7d3800000, 138412032 [pid 7181] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7181] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7158] <... write resumed>) = 16776704 [pid 7158] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7181] <... mprotect resumed>) = 0 [pid 7158] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7181] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7181] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7215 attached [pid 7205] <... munmap resumed>) = 0 [pid 7205] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7205] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7215] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7181] <... clone3 resumed> => {parent_tid=[7215]}, 88) = 7215 [pid 7181] rt_sigprocmask(SIG_SETMASK, [], [pid 7215] <... rseq resumed>) = 0 [pid 7181] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7215] set_robust_list(0x7ff7dbc719a0, 24 [pid 7181] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7215] <... set_robust_list resumed>) = 0 [pid 7205] close(4) = 0 [pid 7205] close(5) = 0 [pid 7181] <... futex resumed>) = 0 [pid 7205] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7205] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 258.949424][ T7205] loop4: detected capacity change from 0 to 32768 [pid 7181] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7215] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7215] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7215] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7181] <... futex resumed>) = 0 [pid 7214] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7215] memfd_create("syzkaller", 0 [pid 7181] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7215] <... memfd_create resumed>) = 4 [pid 7181] <... futex resumed>) = 0 [pid 7215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7181] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7215] <... mmap resumed>) = 0x7ff7d3800000 [ 258.999282][ T7205] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7205) [pid 7213] <... write resumed>) = 16777216 [pid 7210] <... write resumed>) = 16777216 [pid 7213] munmap(0x7ff7d3800000, 138412032 [ 259.059868][ T7205] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 259.092744][ T7205] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 7210] munmap(0x7ff7d3800000, 138412032 [pid 7213] <... munmap resumed>) = 0 [pid 7213] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 7213] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7210] <... munmap resumed>) = 0 [ 259.150811][ T7213] loop3: detected capacity change from 0 to 32768 [pid 7210] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7213] close(4 [pid 7210] <... openat resumed>) = 5 [pid 7213] <... close resumed>) = 0 [pid 7210] ioctl(5, LOOP_SET_FD, 4 [pid 7213] close(5 [pid 7210] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 7213] <... close resumed>) = 0 [pid 7210] ioctl(5, LOOP_CLR_FD) = 0 [pid 7210] ioctl(5, LOOP_SET_FD, 4 [pid 7213] mkdir("./bus", 0777 [pid 7210] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 7213] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7210] close(5 [pid 7213] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7210] <... close resumed>) = 0 [ 259.238219][ T7213] BTRFS: device /dev/loop3 (7:3) using temp-fsid 32270d67-9e1e-413e-a7b0-0e208c7577e3 [ 259.278909][ T7213] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7213) [ 259.367470][ T7205] BTRFS info (device loop4): rebuilding free space tree [ 259.367665][ T7213] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7210] close(4 [pid 7178] <... creat resumed>) = 3 [pid 7170] <... creat resumed>) = 3 [pid 7180] <... creat resumed>) = 3 [pid 7170] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7180] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7178] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7180] <... futex resumed>) = 0 [pid 7180] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7178] <... futex resumed>) = 0 [pid 7215] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7178] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7182] <... creat resumed>) = 3 [pid 7170] <... futex resumed>) = 0 [pid 7182] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7182] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 259.437166][ T7205] BTRFS info (device loop4): disabling free space tree [ 259.459533][ T7213] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 259.468654][ T7205] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7170] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7210] <... close resumed>) = 0 [ 259.511274][ T7205] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7210] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7177] <... futex resumed>) = 0 [pid 7210] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7177] exit_group(0) = ? [pid 7178] <... futex resumed>) = ? [pid 7210] <... futex resumed>) = ? [pid 7210] +++ exited with 0 +++ [pid 7178] +++ exited with 0 +++ [pid 7177] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7177, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=77 /* 0.77 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7248 ./strace-static-x86_64: Process 7248 attached [pid 7248] set_robust_list(0x5555693e0760, 24) = 0 [pid 7248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7214] <... write resumed>) = 16777216 [pid 7248] setpgid(0, 0) = 0 [pid 7248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7248] write(3, "1000", 4) = 4 [pid 7248] close(3) = 0 executing program [pid 7248] write(1, "executing program\n", 18) = 18 [pid 7248] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7248] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7248] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7248] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7248] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7248] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7249 attached => {parent_tid=[7249]}, 88) = 7249 [pid 7214] munmap(0x7ff7d3800000, 138412032 [ 259.577432][ T7213] BTRFS info (device loop3): rebuilding free space tree [ 259.577475][ T7205] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7248] rt_sigprocmask(SIG_SETMASK, [], [pid 7249] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7248] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7248] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7248] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7249] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7249] memfd_create("syzkaller", 0) = 3 [pid 7249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7214] <... munmap resumed>) = 0 [ 259.633405][ T7213] BTRFS info (device loop3): disabling free space tree [ 259.666723][ T7213] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7214] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 7214] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7214] close(4) = 0 [pid 7214] close(5) = 0 [pid 7214] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 259.678388][ T7213] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 259.698464][ T7214] loop1: detected capacity change from 0 to 32768 [ 259.716257][ T7213] BTRFS info (device loop3): last unmount of filesystem 32270d67-9e1e-413e-a7b0-0e208c7577e3 [ 259.761239][ T7214] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7214) [pid 7214] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7205] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7205] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7205] ioctl(4, LOOP_CLR_FD) = 0 [ 259.838273][ T7214] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7205] close(4 [pid 7213] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7213] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7213] ioctl(4, LOOP_CLR_FD) = 0 [ 259.880369][ T7214] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 7213] close(4 [pid 7215] <... write resumed>) = 16777216 [pid 7215] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7215] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7205] <... close resumed>) = 0 [pid 7215] <... openat resumed>) = 5 [pid 7215] ioctl(5, LOOP_SET_FD, 4 [pid 7205] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7157] <... futex resumed>) = 0 [pid 7157] exit_group(0) = ? [pid 7158] <... futex resumed>) = ? [pid 7158] +++ exited with 0 +++ [pid 7215] <... ioctl resumed>) = 0 [pid 7215] close(4) = 0 [pid 7215] close(5) = 0 [pid 7215] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 260.047174][ T7215] loop0: detected capacity change from 0 to 32768 [ 260.084007][ T7214] BTRFS info (device loop1): rebuilding free space tree [pid 7215] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7205] +++ exited with 0 +++ [pid 7157] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7157, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=127 /* 1.27 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [ 260.095334][ T7215] BTRFS: device /dev/loop0 (7:0) using temp-fsid 529f0965-2e4d-4f88-94c1-277303b1c3e8 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7266 ./strace-static-x86_64: Process 7266 attached [pid 7266] set_robust_list(0x5555693e0760, 24) = 0 [pid 7266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7266] setpgid(0, 0) = 0 [pid 7266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 260.156577][ T7215] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7215) [pid 7266] write(3, "1000", 4) = 4 [pid 7266] close(3) = 0 executing program [pid 7266] write(1, "executing program\n", 18) = 18 [pid 7266] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7266] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7266] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7266] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7266] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7213] <... close resumed>) = 0 ./strace-static-x86_64: Process 7267 attached [pid 7266] <... clone3 resumed> => {parent_tid=[7267]}, 88) = 7267 [pid 7267] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7267] <... rseq resumed>) = 0 [pid 7266] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7267] set_robust_list(0x7ff7dbc929a0, 24 [pid 7266] <... futex resumed>) = 0 [pid 7267] <... set_robust_list resumed>) = 0 [pid 7266] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7267] memfd_create("syzkaller", 0) = 3 [pid 7267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7213] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7159] <... futex resumed>) = 0 [pid 7213] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7159] exit_group(0 [pid 7213] <... futex resumed>) = ? [pid 7170] <... futex resumed>) = ? [pid 7159] <... exit_group resumed>) = ? [pid 7213] +++ exited with 0 +++ [ 260.203550][ T7214] BTRFS info (device loop1): disabling free space tree [ 260.243018][ T7214] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7170] +++ exited with 0 +++ [pid 7159] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7159, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=96 /* 0.96 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7268 ./strace-static-x86_64: Process 7268 attached [pid 7268] set_robust_list(0x5555693e0760, 24) = 0 [pid 7268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7268] setpgid(0, 0) = 0 [pid 7268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7268] write(3, "1000", 4) = 4 [pid 7268] close(3) = 0 executing program [pid 7268] write(1, "executing program\n", 18) = 18 [pid 7268] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7268] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7268] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7268] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [ 260.284305][ T7214] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 260.288667][ T7215] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7268] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7268] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7270 attached => {parent_tid=[7270]}, 88) = 7270 [pid 7268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7268] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7268] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7270] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7270] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7270] memfd_create("syzkaller", 0) = 3 [pid 7270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 260.377993][ T7215] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 260.408520][ T7214] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7249] <... write resumed>) = 16777216 [pid 7249] munmap(0x7ff7d3800000, 138412032 [pid 7214] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7249] <... munmap resumed>) = 0 [pid 7249] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7214] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7249] <... openat resumed>) = 4 [pid 7214] <... openat resumed>) = 4 [pid 7249] ioctl(4, LOOP_SET_FD, 3 [pid 7214] ioctl(4, LOOP_CLR_FD [pid 7249] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 7214] <... ioctl resumed>) = 0 [pid 7249] ioctl(4, LOOP_CLR_FD [pid 7214] close(4 [pid 7249] <... ioctl resumed>) = 0 [pid 7249] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7249] close(4) = 0 [pid 7249] close(3 [ 260.629242][ T7215] BTRFS info (device loop0): rebuilding free space tree [ 260.720105][ T7215] BTRFS info (device loop0): disabling free space tree [ 260.727086][ T7215] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 260.791338][ T7215] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7214] <... close resumed>) = 0 [pid 7249] <... close resumed>) = 0 [pid 7214] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7214] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7179] <... futex resumed>) = 0 [pid 7249] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7179] exit_group(0) = ? [pid 7214] <... futex resumed>) = ? [pid 7180] <... futex resumed>) = ? [pid 7249] <... futex resumed>) = 1 [pid 7248] <... futex resumed>) = 0 [pid 7214] +++ exited with 0 +++ [pid 7180] +++ exited with 0 +++ [pid 7179] +++ exited with 0 +++ [pid 7248] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7179, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=79 /* 0.79 s */} --- [pid 7248] <... futex resumed>) = 0 [pid 7248] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 260.884840][ T7215] BTRFS info (device loop0): last unmount of filesystem 529f0965-2e4d-4f88-94c1-277303b1c3e8 [pid 7249] creat("./bus", 000) = 3 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7215] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5844] <... openat resumed>) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7286 attached , child_tidptr=0x5555693e0750) = 7286 [pid 7286] set_robust_list(0x5555693e0760, 24) = 0 [pid 7286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7286] setpgid(0, 0 [pid 7215] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7286] <... setpgid resumed>) = 0 [pid 7286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7249] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7215] <... openat resumed>) = 4 [pid 7249] <... futex resumed>) = 1 [pid 7248] <... futex resumed>) = 0 [pid 7215] ioctl(4, LOOP_CLR_FD [pid 7249] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7248] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 7215] <... ioctl resumed>) = 0 [pid 7286] write(3, "1000", 4 [pid 7248] <... futex resumed>) = 0 [pid 7215] close(4 [pid 7286] <... write resumed>) = 4 [pid 7248] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7286] close(3) = 0 [pid 7286] write(1, "executing program\n", 18) = 18 [pid 7286] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7286] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7286] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7286] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7286] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7287 attached => {parent_tid=[7287]}, 88) = 7287 [pid 7286] rt_sigprocmask(SIG_SETMASK, [], [pid 7287] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7287] <... rseq resumed>) = 0 [pid 7286] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7287] set_robust_list(0x7ff7dbc929a0, 24 [pid 7286] <... futex resumed>) = 0 [pid 7287] <... set_robust_list resumed>) = 0 [pid 7286] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7287] memfd_create("syzkaller", 0) = 3 [pid 7287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7248] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7248] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7248] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7248] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7248] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7288 attached => {parent_tid=[7288]}, 88) = 7288 [pid 7248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7248] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7248] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7288] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7288] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7288] memfd_create("syzkaller", 0) = 4 [pid 7288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7267] <... write resumed>) = 16777216 [pid 7267] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7267] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7267] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7267] close(3) = 0 [pid 7267] close(4) = 0 [pid 7267] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7267] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7215] <... close resumed>) = 0 [pid 7215] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7181] <... futex resumed>) = 0 [pid 7181] exit_group(0 [pid 7182] <... futex resumed>) = ? [pid 7181] <... exit_group resumed>) = ? [ 261.220048][ T7267] loop4: detected capacity change from 0 to 32768 [pid 7215] <... futex resumed>) = ? [pid 7215] +++ exited with 0 +++ [pid 7270] <... write resumed>) = 16777216 [pid 7270] munmap(0x7ff7d3800000, 138412032) = 0 [ 261.385058][ T7267] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 261.407992][ T7267] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7182] +++ exited with 0 +++ [pid 7181] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7181, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=83 /* 0.83 s */} --- [pid 7270] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7270] <... openat resumed>) = 4 [pid 5843] <... openat resumed>) = 3 [pid 7270] ioctl(4, LOOP_SET_FD, 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7296 ./strace-static-x86_64: Process 7296 attached [pid 7287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7296] set_robust_list(0x5555693e0760, 24) = 0 [pid 7296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7270] <... ioctl resumed>) = 0 [pid 7296] <... prctl resumed>) = 0 [pid 7296] setpgid(0, 0) = 0 [pid 7296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 261.475521][ T7270] loop3: detected capacity change from 0 to 32768 [pid 7296] write(3, "1000", 4 [pid 7270] close(3) = 0 [pid 7296] <... write resumed>) = 4 executing program [pid 7296] close(3) = 0 [pid 7270] close(4) = 0 [pid 7296] write(1, "executing program\n", 18) = 18 [pid 7270] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7296] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7270] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7296] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7296] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7296] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7288] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7296] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7302]}, 88) = 7302 ./strace-static-x86_64: Process 7302 attached [pid 7296] rt_sigprocmask(SIG_SETMASK, [], [pid 7302] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7302] <... rseq resumed>) = 0 [pid 7302] set_robust_list(0x7ff7dbc929a0, 24 [pid 7296] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7302] <... set_robust_list resumed>) = 0 [pid 7296] <... futex resumed>) = 0 [pid 7302] rt_sigprocmask(SIG_SETMASK, [], [pid 7296] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7302] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7302] memfd_create("syzkaller", 0) = 3 [pid 7302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 261.626060][ T7267] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7267] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7267] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 7267] ioctl(3, LOOP_CLR_FD) = 0 [ 261.683425][ T7270] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 261.747993][ T7270] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7267] close(3 [pid 7302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7270] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7267] <... close resumed>) = 0 [pid 7270] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 7267] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7270] ioctl(3, LOOP_CLR_FD [pid 7267] <... futex resumed>) = 1 [pid 7266] <... futex resumed>) = 0 [pid 7270] <... ioctl resumed>) = 0 [pid 7266] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [ 261.992574][ T7270] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7267] creat("./bus", 000 [pid 7270] close(3 [pid 7266] <... futex resumed>) = 0 [pid 7266] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7266] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7266] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7266] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7305]}, 88) = 7305 ./strace-static-x86_64: Process 7305 attached [pid 7266] rt_sigprocmask(SIG_SETMASK, [], [pid 7305] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7305] <... rseq resumed>) = 0 [pid 7305] set_robust_list(0x7ff7dbc719a0, 24 [pid 7266] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7305] <... set_robust_list resumed>) = 0 [pid 7305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7305] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7266] <... futex resumed>) = 0 [pid 7305] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7287] <... write resumed>) = 16777216 [pid 7266] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7305] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7266] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7287] munmap(0x7ff7d3800000, 138412032 [pid 7266] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7305] <... futex resumed>) = 0 [pid 7266] <... futex resumed>) = 1 [pid 7305] memfd_create("syzkaller", 0 [pid 7266] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7288] <... write resumed>) = 16777216 [pid 7305] <... memfd_create resumed>) = 4 [pid 7249] <... write resumed>) = 16776704 [pid 7305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7288] munmap(0x7ff7d3800000, 138412032 [pid 7249] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7305] <... mmap resumed>) = 0x7ff7d3800000 [pid 7249] <... futex resumed>) = 0 [pid 7249] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7287] <... munmap resumed>) = 0 [pid 7288] <... munmap resumed>) = 0 [pid 7288] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7288] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7288] ioctl(5, LOOP_CLR_FD) = 0 [pid 7288] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7288] close(5) = 0 [pid 7287] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7288] close(4 [pid 7287] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7287] close(3) = 0 [pid 7287] close(4) = 0 [pid 7287] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7270] <... close resumed>) = 0 [pid 7287] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 262.278498][ T7287] loop1: detected capacity change from 0 to 32768 [pid 7270] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7268] <... futex resumed>) = 0 [pid 7270] creat("./bus", 000 [pid 7268] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7268] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7302] <... write resumed>) = 16777216 [pid 7302] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7302] ioctl(4, LOOP_SET_FD, 3 [pid 7268] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7268] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7268] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7268] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7268] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7313 attached => {parent_tid=[7313]}, 88) = 7313 [pid 7268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7268] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7313] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7268] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7313] <... rseq resumed>) = 0 [pid 7313] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7313] rt_sigprocmask(SIG_SETMASK, [], [pid 7302] <... ioctl resumed>) = 0 [pid 7313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7313] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7302] close(3) = 0 [pid 7313] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7302] close(4 [pid 7313] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7313] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7302] <... close resumed>) = 0 [pid 7268] <... futex resumed>) = 0 [pid 7302] mkdir("./file1", 0777 [pid 7268] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7313] <... futex resumed>) = 0 [pid 7302] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7268] <... futex resumed>) = 1 [pid 7268] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7313] memfd_create("syzkaller", 0 [pid 7302] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7313] <... memfd_create resumed>) = 4 [ 262.387838][ T7302] loop0: detected capacity change from 0 to 32768 [ 262.424370][ T7287] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 262.447888][ T7287] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7267] <... creat resumed>) = 3 [pid 7267] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7270] <... creat resumed>) = 3 [pid 7267] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7270] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7270] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7305] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7288] <... close resumed>) = 0 [pid 7288] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7288] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7248] <... futex resumed>) = 0 [pid 7248] exit_group(0 [pid 7288] <... futex resumed>) = ? [pid 7249] <... futex resumed>) = ? [pid 7248] <... exit_group resumed>) = ? [pid 7288] +++ exited with 0 +++ [pid 7249] +++ exited with 0 +++ [ 262.604997][ T7302] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7248] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7248, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=113 /* 1.13 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7321 ./strace-static-x86_64: Process 7321 attached [pid 7321] set_robust_list(0x5555693e0760, 24) = 0 [pid 7321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7321] setpgid(0, 0) = 0 [pid 7321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 7287] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7321] write(3, "1000", 4) = 4 [pid 7321] close(3) = 0 [pid 7321] write(1, "executing program\n", 18) = 18 [pid 7321] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7321] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7321] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7287] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7287] <... openat resumed>) = 3 [pid 7321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7287] ioctl(3, LOOP_CLR_FD) = 0 [pid 7287] close(3 [pid 7321] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7321] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7321] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 262.655806][ T7302] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 262.687332][ T7287] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7322]}, 88) = 7322 [pid 7321] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7322 attached [pid 7322] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7321] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7321] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7322] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7322] memfd_create("syzkaller", 0) = 3 [pid 7322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7313] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7302] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7302] ioctl(3, LOOP_CLR_FD) = 0 [ 262.913920][ T7302] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7302] close(3 [pid 7305] <... write resumed>) = 16777216 [pid 7287] <... close resumed>) = 0 [pid 7287] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7286] <... futex resumed>) = 0 [pid 7287] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7305] munmap(0x7ff7d3800000, 138412032 [pid 7286] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7287] <... futex resumed>) = 0 [pid 7286] <... futex resumed>) = 1 [pid 7287] creat("./bus", 000) = 3 [pid 7286] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7287] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7287] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7286] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7286] <... futex resumed>) = 0 [pid 7287] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7286] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7305] <... munmap resumed>) = 0 [pid 7305] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7305] ioctl(5, LOOP_SET_FD, 4 [pid 7286] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7286] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7286] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7305] <... ioctl resumed>) = 0 [pid 7286] <... mprotect resumed>) = 0 [pid 7305] close(4) = 0 [pid 7286] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7305] close(5 [pid 7286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7323 attached [pid 7305] <... close resumed>) = 0 [ 263.052503][ T7305] loop4: detected capacity change from 0 to 32768 [pid 7323] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7305] mkdir("./bus", 0777 [pid 7286] <... clone3 resumed> => {parent_tid=[7323]}, 88) = 7323 [pid 7323] <... rseq resumed>) = 0 [pid 7305] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7286] rt_sigprocmask(SIG_SETMASK, [], [pid 7305] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7286] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7286] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7323] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7323] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7323] memfd_create("syzkaller", 0) = 4 [ 263.110310][ T7305] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7305) [pid 7323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 263.200363][ T7305] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7302] <... close resumed>) = 0 [pid 7302] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7296] <... futex resumed>) = 0 [pid 7302] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7296] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7296] <... futex resumed>) = 0 [pid 7302] creat("./bus", 000 [ 263.247799][ T7305] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 7296] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7296] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7296] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7332]}, 88) = 7332 [pid 7296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7296] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7296] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7332 attached [pid 7332] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7332] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7313] <... write resumed>) = 16777216 [pid 7332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7332] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7332] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7296] <... futex resumed>) = 0 [pid 7296] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7296] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7332] memfd_create("syzkaller", 0) = 4 [pid 7332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7313] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7313] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 7313] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7313] close(4) = 0 [ 263.430963][ T7305] BTRFS info (device loop4): rebuilding free space tree [ 263.445780][ T7305] BTRFS info (device loop4): disabling free space tree [ 263.453445][ T7305] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 263.464002][ T7313] loop3: detected capacity change from 0 to 32768 [pid 7323] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7313] close(5) = 0 [pid 7313] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 263.525776][ T7305] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7313] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7322] <... write resumed>) = 16777216 [ 263.569508][ T7313] BTRFS: device /dev/loop3 (7:3) using temp-fsid 9fe58d1c-b4e7-4504-98c4-1984795c6763 [pid 7322] munmap(0x7ff7d3800000, 138412032) = 0 [ 263.607796][ T7313] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7313) [pid 7322] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7322] ioctl(4, LOOP_CLR_FD) = 0 [pid 7322] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7322] close(4) = 0 [ 263.675723][ T7313] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 263.708528][ T7313] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 7322] close(3) = 0 [pid 7322] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7321] <... futex resumed>) = 0 [pid 7322] <... futex resumed>) = 1 [pid 7321] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7322] creat("./bus", 000 [pid 7321] <... futex resumed>) = 0 [pid 7321] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 263.849129][ T7313] BTRFS info (device loop3): rebuilding free space tree [pid 7332] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7321] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7321] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7321] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7321] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7357 attached [pid 7357] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7321] <... clone3 resumed> => {parent_tid=[7357]}, 88) = 7357 [pid 7357] <... rseq resumed>) = 0 [pid 7321] rt_sigprocmask(SIG_SETMASK, [], [pid 7357] set_robust_list(0x7ff7dbc719a0, 24 [pid 7321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7357] <... set_robust_list resumed>) = 0 [pid 7357] rt_sigprocmask(SIG_SETMASK, [], [pid 7321] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7321] <... futex resumed>) = 0 [pid 7357] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7321] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7357] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7357] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7321] <... futex resumed>) = 0 [pid 7357] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7321] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7321] <... futex resumed>) = 0 [pid 7357] memfd_create("syzkaller", 0 [pid 7321] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7357] <... memfd_create resumed>) = 4 [ 263.921493][ T7313] BTRFS info (device loop3): disabling free space tree [ 263.953754][ T7313] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7287] <... write resumed>) = 16776704 [pid 7287] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7287] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7323] <... write resumed>) = 16777216 [ 263.997773][ T7313] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7323] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7323] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 7323] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7323] close(4) = 0 [pid 7323] close(5) = 0 [pid 7323] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 264.090561][ T7323] loop1: detected capacity change from 0 to 32768 [ 264.114467][ T7323] BTRFS: device /dev/loop1 (7:1) using temp-fsid 2e984f22-9a0b-473a-b54e-6e8310c40cff [ 264.146151][ T7323] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7323) [ 264.200483][ T7323] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 264.224445][ T7323] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 7323] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7332] <... write resumed>) = 16777216 [pid 7332] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 7332] ioctl(5, LOOP_SET_FD, 4) = 0 [ 264.303241][ T7323] BTRFS info (device loop1): rebuilding free space tree [ 264.336002][ T7332] loop0: detected capacity change from 0 to 32768 [ 264.344887][ T7323] BTRFS info (device loop1): disabling free space tree [pid 7332] close(4) = 0 [pid 7332] close(5) = 0 [pid 7332] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7332] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 264.352921][ T7323] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 264.363721][ T7323] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 264.390575][ T7332] BTRFS: device /dev/loop0 (7:0) using temp-fsid d7969638-813c-4854-b6e7-34f511d83775 [ 264.423208][ T7332] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7332) [ 264.457862][ T7332] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7357] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7322] <... creat resumed>) = 3 [pid 7322] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7322] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7302] <... creat resumed>) = 3 [pid 7302] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 264.468658][ T7305] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 264.478843][ T7323] BTRFS info (device loop1): last unmount of filesystem 2e984f22-9a0b-473a-b54e-6e8310c40cff [ 264.479061][ T7313] BTRFS info (device loop3): last unmount of filesystem 9fe58d1c-b4e7-4504-98c4-1984795c6763 [ 264.505299][ T7332] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 7302] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7313] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7313] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7313] ioctl(4, LOOP_CLR_FD [pid 7323] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7313] <... ioctl resumed>) = 0 [pid 7323] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7313] close(4 [pid 7323] ioctl(4, LOOP_CLR_FD) = 0 [pid 7323] close(4) = 0 [pid 7323] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7286] <... futex resumed>) = 0 [pid 7286] exit_group(0 [pid 7287] <... futex resumed>) = ? [pid 7286] <... exit_group resumed>) = ? [pid 7287] +++ exited with 0 +++ [pid 7323] <... futex resumed>) = ? [pid 7323] +++ exited with 0 +++ [pid 7286] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7286, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=112 /* 1.12 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = 0 [pid 5844] close(3 [pid 7305] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5844] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7305] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 7388 [pid 7305] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 7388 attached ) = 0 [pid 7388] set_robust_list(0x5555693e0760, 24 [pid 7305] close(4 [pid 7388] <... set_robust_list resumed>) = 0 [pid 7388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7388] setpgid(0, 0) = 0 [pid 7388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7388] write(3, "1000", 4) = 4 [pid 7388] close(3executing program ) = 0 [pid 7388] write(1, "executing program\n", 18) = 18 [pid 7388] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7388] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7388] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7388] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7391]}, 88) = 7391 [pid 7388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7388] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7388] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7391 attached [ 264.728520][ T7332] BTRFS info (device loop0): rebuilding free space tree [pid 7391] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7391] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7391] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7391] memfd_create("syzkaller", 0) = 3 [pid 7391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 264.815194][ T7332] BTRFS info (device loop0): disabling free space tree [ 264.865447][ T7332] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7305] <... close resumed>) = 0 [pid 7305] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7266] <... futex resumed>) = 0 [pid 7266] exit_group(0) = ? [pid 7305] +++ exited with 0 +++ [pid 7267] <... futex resumed>) = ? [pid 7267] +++ exited with 0 +++ [pid 7266] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7266, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=98 /* 0.98 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7392 attached , child_tidptr=0x5555693e0750) = 7392 [pid 7392] set_robust_list(0x5555693e0760, 24) = 0 [pid 7392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7392] setpgid(0, 0) = 0 [pid 7313] <... close resumed>) = 0 [pid 7392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7313] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7268] <... futex resumed>) = 0 [pid 7313] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [ 264.907803][ T7332] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7268] exit_group(0 [pid 7313] <... futex resumed>) = ? [pid 7270] <... futex resumed>) = ? [pid 7268] <... exit_group resumed>) = ? [pid 7270] +++ exited with 0 +++ [pid 7392] <... openat resumed>) = 3 [pid 7313] +++ exited with 0 +++ [pid 7268] +++ exited with 0 +++ [pid 7392] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7268, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=90 /* 0.90 s */} --- [pid 7392] <... write resumed>) = 4 [pid 7392] close(3) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7392] write(1, "executing program\n", 18 [pid 5847] <... openat resumed>) = 3 executing program [pid 7392] <... write resumed>) = 18 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 7392] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7392] <... futex resumed>) = 0 [pid 5847] close(3 [pid 7392] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5847] <... close resumed>) = 0 [pid 7392] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7393 attached [pid 7392] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7393] set_robust_list(0x5555693e0760, 24 [pid 7392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 7393 [pid 7393] <... set_robust_list resumed>) = 0 [pid 7392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7392] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7392] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7393] <... prctl resumed>) = 0 [pid 7392] <... mprotect resumed>) = 0 [pid 7393] setpgid(0, 0 [pid 7392] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7393] <... setpgid resumed>) = 0 [pid 7392] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7393] <... openat resumed>) = 3 [pid 7392] <... clone3 resumed> => {parent_tid=[7394]}, 88) = 7394 [pid 7393] write(3, "1000", 4 [pid 7392] rt_sigprocmask(SIG_SETMASK, [], [pid 7393] <... write resumed>) = 4 [pid 7392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7393] close(3 [pid 7392] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7393] <... close resumed>) = 0 [pid 7392] <... futex resumed>) = 0 executing program [pid 7393] write(1, "executing program\n", 18 [pid 7392] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7393] <... write resumed>) = 18 [pid 7393] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7393] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7393] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7393] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7393] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ./strace-static-x86_64: Process 7394 attached [pid 7393] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7394] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 ./strace-static-x86_64: Process 7395 attached [pid 7393] <... clone3 resumed> => {parent_tid=[7395]}, 88) = 7395 [pid 7393] rt_sigprocmask(SIG_SETMASK, [], [pid 7395] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7393] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7395] <... rseq resumed>) = 0 [pid 7393] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7395] set_robust_list(0x7ff7dbc929a0, 24 [pid 7393] <... futex resumed>) = 0 [pid 7395] <... set_robust_list resumed>) = 0 [pid 7393] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7395] memfd_create("syzkaller", 0) = 3 [pid 7395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7394] set_robust_list(0x7ff7dbc929a0, 24 [pid 7395] <... mmap resumed>) = 0x7ff7d3800000 [pid 7394] <... set_robust_list resumed>) = 0 [pid 7394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7394] memfd_create("syzkaller", 0) = 3 [pid 7394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 265.024492][ T7332] BTRFS info (device loop0): last unmount of filesystem d7969638-813c-4854-b6e7-34f511d83775 [pid 7357] <... write resumed>) = 16777216 [pid 7332] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7357] munmap(0x7ff7d3800000, 138412032 [pid 7332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7332] ioctl(4, LOOP_CLR_FD) = 0 [pid 7332] close(4 [pid 7357] <... munmap resumed>) = 0 [pid 7357] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7357] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7357] ioctl(5, LOOP_CLR_FD) = 0 [pid 7357] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7357] close(5) = 0 [pid 7357] close(4 [pid 7391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7357] <... close resumed>) = 0 [pid 7357] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7321] <... futex resumed>) = 0 [pid 7395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7357] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7321] exit_group(0) = ? [pid 7357] <... futex resumed>) = ? [pid 7357] +++ exited with 0 +++ [pid 7322] <... futex resumed>) = ? [pid 7322] +++ exited with 0 +++ [pid 7321] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7321, si_uid=0, si_status=0, si_utime=24 /* 0.24 s */, si_stime=64 /* 0.64 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7396 ./strace-static-x86_64: Process 7396 attached [pid 7332] <... close resumed>) = 0 [pid 7396] set_robust_list(0x5555693e0760, 24) = 0 [pid 7396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7396] setpgid(0, 0) = 0 [pid 7396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7332] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7332] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7396] <... openat resumed>) = 3 [pid 7394] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7296] <... futex resumed>) = 0 [pid 7396] write(3, "1000", 4 [pid 7296] exit_group(0 [pid 7396] <... write resumed>) = 4 [pid 7332] <... futex resumed>) = ? [pid 7302] <... futex resumed>) = ? [pid 7296] <... exit_group resumed>) = ? [pid 7396] close(3 [pid 7332] +++ exited with 0 +++ [pid 7396] <... close resumed>) = 0 [pid 7302] +++ exited with 0 +++ [pid 7296] +++ exited with 0 +++ executing program [pid 7396] write(1, "executing program\n", 18) = 18 [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7296, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=98 /* 0.98 s */} --- [pid 7396] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7396] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 5843] <... openat resumed>) = 3 [pid 7396] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5843] ioctl(3, LOOP_CLR_FD [pid 7396] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] close(3 [pid 7396] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7396] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5843] <... close resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7397 ./strace-static-x86_64: Process 7397 attached [pid 7397] set_robust_list(0x5555693e0760, 24) = 0 [pid 7397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7397] setpgid(0, 0) = 0 [pid 7396] <... mprotect resumed>) = 0 [pid 7397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7396] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7397] <... openat resumed>) = 3 [pid 7397] write(3, "1000", 4 [pid 7396] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7397] <... write resumed>) = 4 [pid 7397] close(3 [pid 7396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7397] <... close resumed>) = 0 executing program ./strace-static-x86_64: Process 7398 attached [pid 7397] write(1, "executing program\n", 18 [pid 7398] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7397] <... write resumed>) = 18 [pid 7396] <... clone3 resumed> => {parent_tid=[7398]}, 88) = 7398 [pid 7398] <... rseq resumed>) = 0 [pid 7397] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7396] rt_sigprocmask(SIG_SETMASK, [], [pid 7398] set_robust_list(0x7ff7dbc929a0, 24 [pid 7397] <... futex resumed>) = 0 [pid 7396] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7398] <... set_robust_list resumed>) = 0 [pid 7397] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7396] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7398] rt_sigprocmask(SIG_SETMASK, [], [pid 7397] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7396] <... futex resumed>) = 0 [pid 7397] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7398] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7396] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7397] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7398] memfd_create("syzkaller", 0 [pid 7397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7398] <... memfd_create resumed>) = 3 [pid 7397] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7397] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7397] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7397] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7399]}, 88) = 7399 [pid 7397] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 7399 attached [pid 7398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7397] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7398] <... mmap resumed>) = 0x7ff7d3800000 [pid 7397] <... futex resumed>) = 0 [pid 7397] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7399] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7399] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7399] memfd_create("syzkaller", 0) = 3 [pid 7399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7391] <... write resumed>) = 16777216 [pid 7391] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7391] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7391] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7391] close(3) = 0 [pid 7391] close(4) = 0 [pid 7391] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 265.807876][ T7391] loop1: detected capacity change from 0 to 32768 [pid 7391] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7398] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7395] <... write resumed>) = 16777216 [pid 7394] <... write resumed>) = 16777216 [pid 7394] munmap(0x7ff7d3800000, 138412032 [pid 7395] munmap(0x7ff7d3800000, 138412032 [pid 7394] <... munmap resumed>) = 0 [pid 7395] <... munmap resumed>) = 0 [pid 7395] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 265.946869][ T7391] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 265.974690][ T7391] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7394] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7395] <... openat resumed>) = 4 [pid 7394] <... openat resumed>) = 4 [pid 7395] ioctl(4, LOOP_SET_FD, 3 [pid 7394] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7395] <... ioctl resumed>) = 0 [pid 7395] close(3) = 0 [pid 7395] close(4) = 0 [pid 7395] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7395] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7394] close(3) = 0 [pid 7394] close(4) = 0 [pid 7394] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 266.020207][ T7394] loop4: detected capacity change from 0 to 32768 [ 266.027169][ T7395] loop3: detected capacity change from 0 to 32768 [pid 7394] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7391] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7391] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 7391] ioctl(3, LOOP_CLR_FD) = 0 [ 266.156822][ T7395] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 266.175191][ T7391] bcachefs: bch2_fs_get_tree() error: EINVAL [ 266.181061][ T7395] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 266.196565][ T7394] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7391] close(3 [pid 7398] <... write resumed>) = 16777216 [pid 7398] munmap(0x7ff7d3800000, 138412032) = 0 [ 266.255380][ T7394] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7398] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7398] ioctl(4, LOOP_CLR_FD) = 0 [pid 7398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7398] close(4) = 0 [pid 7398] close(3 [pid 7391] <... close resumed>) = 0 [pid 7391] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7388] <... futex resumed>) = 0 [pid 7391] creat("./bus", 000 [pid 7388] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7391] <... creat resumed>) = 3 [pid 7388] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7391] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7388] <... futex resumed>) = 0 [pid 7391] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7388] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7388] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7395] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7395] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 7394] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7395] ioctl(3, LOOP_CLR_FD) = 0 [pid 7395] close(3 [pid 7398] <... close resumed>) = 0 [pid 7394] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7398] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7396] <... futex resumed>) = 0 [pid 7394] <... openat resumed>) = 3 [pid 7398] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7396] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7394] ioctl(3, LOOP_CLR_FD [pid 7398] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7396] <... futex resumed>) = 0 [pid 7398] creat("./bus", 000 [pid 7396] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7394] <... ioctl resumed>) = 0 [pid 7394] close(3 [pid 7388] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7388] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7388] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [ 266.483283][ T7395] bcachefs: bch2_fs_get_tree() error: EINVAL [ 266.518483][ T7394] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7388] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7421]}, 88) = 7421 [pid 7388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7388] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7388] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7421 attached [pid 7421] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7421] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7421] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7421] memfd_create("syzkaller", 0) = 4 [pid 7421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7396] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7396] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7396] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7396] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7422 attached [pid 7422] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7422] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7422] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7422] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7396] <... clone3 resumed> => {parent_tid=[7422]}, 88) = 7422 [pid 7396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7396] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7422] <... futex resumed>) = 0 [pid 7396] <... futex resumed>) = 1 [pid 7422] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7396] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7422] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7422] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7422] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7396] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7396] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7422] <... futex resumed>) = 0 [pid 7396] <... futex resumed>) = 1 [pid 7422] memfd_create("syzkaller", 0) = 4 [pid 7422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7396] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7395] <... close resumed>) = 0 [pid 7399] <... write resumed>) = 16777216 [pid 7399] munmap(0x7ff7d3800000, 138412032 [pid 7394] <... close resumed>) = 0 [pid 7395] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7399] <... munmap resumed>) = 0 [pid 7395] <... futex resumed>) = 1 [pid 7394] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7393] <... futex resumed>) = 0 [pid 7395] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7394] <... futex resumed>) = 1 [pid 7393] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7392] <... futex resumed>) = 0 [pid 7395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7394] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7393] <... futex resumed>) = 0 [pid 7392] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7395] creat("./bus", 000 [pid 7394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7393] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7392] <... futex resumed>) = 0 [pid 7394] creat("./bus", 000 [pid 7392] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7399] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7399] close(3 [pid 7393] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7393] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7392] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7393] <... futex resumed>) = 0 [pid 7399] <... close resumed>) = 0 [pid 7399] close(4) = 0 [pid 7399] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7399] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 266.878748][ T7399] loop0: detected capacity change from 0 to 32768 [pid 7393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7393] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7392] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7393] <... mprotect resumed>) = 0 [pid 7392] <... futex resumed>) = 0 [pid 7392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7393] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7392] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7393] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 7392] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 7424 attached ) = 0 [pid 7392] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7393] <... clone3 resumed> => {parent_tid=[7424]}, 88) = 7424 [pid 7424] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7392] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7424] <... rseq resumed>) = 0 [pid 7393] rt_sigprocmask(SIG_SETMASK, [], [pid 7392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 7424] set_robust_list(0x7ff7dbc719a0, 24 [pid 7393] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7424] <... set_robust_list resumed>) = 0 [pid 7393] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7392] <... clone3 resumed> => {parent_tid=[7426]}, 88) = 7426 [pid 7424] rt_sigprocmask(SIG_SETMASK, [], [pid 7392] rt_sigprocmask(SIG_SETMASK, [], [pid 7424] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7393] <... futex resumed>) = 0 [pid 7392] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7424] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7392] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7424] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7393] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7392] <... futex resumed>) = 0 [pid 7424] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7392] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7426 attached [pid 7424] <... futex resumed>) = 1 [pid 7393] <... futex resumed>) = 0 [pid 7426] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7424] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7393] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7426] <... rseq resumed>) = 0 [pid 7393] <... futex resumed>) = 0 [pid 7426] set_robust_list(0x7ff7dbc719a0, 24 [pid 7393] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7426] <... set_robust_list resumed>) = 0 [pid 7424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7426] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7426] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7426] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7392] <... futex resumed>) = 0 [pid 7424] memfd_create("syzkaller", 0) = 4 [pid 7392] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7392] <... futex resumed>) = 0 [pid 7426] memfd_create("syzkaller", 0 [pid 7424] <... mmap resumed>) = 0x7ff7d3800000 [pid 7392] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7426] <... memfd_create resumed>) = 4 [pid 7426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 267.061949][ T7399] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 267.137805][ T7399] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7421] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7422] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7426] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7399] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7399] ioctl(3, LOOP_CLR_FD) = 0 [ 267.392745][ T7399] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7399] close(3 [pid 7391] <... write resumed>) = 16776704 [pid 7391] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7391] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7424] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7422] <... write resumed>) = 16777216 [pid 7422] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7399] <... close resumed>) = 0 [pid 7422] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7422] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7421] <... write resumed>) = 16777216 [pid 7399] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7397] <... futex resumed>) = 0 [pid 7397] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7397] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7422] ioctl(5, LOOP_CLR_FD) = 0 [pid 7399] creat("./bus", 000 [pid 7421] munmap(0x7ff7d3800000, 138412032 [pid 7422] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7422] close(5 [pid 7421] <... munmap resumed>) = 0 [pid 7422] <... close resumed>) = 0 [pid 7421] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7422] close(4 [pid 7421] <... openat resumed>) = 5 [pid 7421] ioctl(5, LOOP_SET_FD, 4 [pid 7397] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7397] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 7397] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7397] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7397] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7397] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7432 attached [pid 7426] <... write resumed>) = 16777216 [pid 7421] <... ioctl resumed>) = 0 [pid 7397] <... clone3 resumed> => {parent_tid=[7432]}, 88) = 7432 [pid 7397] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7397] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7397] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7432] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7421] close(4 [pid 7432] <... rseq resumed>) = 0 [pid 7421] <... close resumed>) = 0 [pid 7432] set_robust_list(0x7ff7dbc719a0, 24 [pid 7421] close(5 [pid 7432] <... set_robust_list resumed>) = 0 [pid 7421] <... close resumed>) = 0 [pid 7432] rt_sigprocmask(SIG_SETMASK, [], [pid 7421] mkdir("./bus", 0777 [pid 7432] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7421] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7432] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7421] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7432] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7432] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7426] munmap(0x7ff7d3800000, 138412032 [pid 7397] <... futex resumed>) = 0 [pid 7432] memfd_create("syzkaller", 0 [pid 7397] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7432] <... memfd_create resumed>) = 4 [pid 7397] <... futex resumed>) = 0 [pid 7432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7397] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7432] <... mmap resumed>) = 0x7ff7d3800000 [pid 7426] <... munmap resumed>) = 0 [ 267.752521][ T7421] loop1: detected capacity change from 0 to 32768 [ 267.786186][ T7421] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7421) [pid 7426] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7426] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7426] close(4) = 0 [pid 7426] close(5) = 0 [pid 7426] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 267.839463][ T7426] loop4: detected capacity change from 0 to 32768 [ 267.853275][ T7421] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 267.879722][ T7426] BTRFS: device /dev/loop4 (7:4) using temp-fsid a33fbdd4-af84-4563-b4ed-3794dd386536 [ 267.907790][ T7421] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 267.918484][ T7426] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7426) [pid 7426] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7398] <... creat resumed>) = 3 [pid 7395] <... creat resumed>) = 3 [pid 7399] <... creat resumed>) = 3 [pid 7398] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7395] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7394] <... creat resumed>) = 3 [pid 7399] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7399] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7394] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7398] <... futex resumed>) = 0 [pid 7395] <... futex resumed>) = 0 [pid 7395] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7398] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7394] <... futex resumed>) = 0 [ 267.958263][ T7426] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7394] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7422] <... close resumed>) = 0 [ 268.019641][ T7426] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 7422] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7396] <... futex resumed>) = 0 [pid 7422] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7396] exit_group(0 [pid 7422] <... futex resumed>) = ? [pid 7398] <... futex resumed>) = ? [pid 7396] <... exit_group resumed>) = ? [pid 7422] +++ exited with 0 +++ [pid 7398] +++ exited with 0 +++ [pid 7396] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7396, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=66 /* 0.66 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [ 268.076906][ T7421] BTRFS info (device loop1): rebuilding free space tree [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7460 ./strace-static-x86_64: Process 7460 attached [pid 7460] set_robust_list(0x5555693e0760, 24) = 0 [pid 7460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7424] <... write resumed>) = 16777216 [pid 7460] setpgid(0, 0 [pid 7424] munmap(0x7ff7d3800000, 138412032 [pid 7460] <... setpgid resumed>) = 0 [pid 7460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7460] write(3, "1000", 4) = 4 [pid 7460] close(3) = 0 executing program [pid 7460] write(1, "executing program\n", 18) = 18 [pid 7460] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7460] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7460] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7460] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7460] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7460] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7466 attached => {parent_tid=[7466]}, 88) = 7466 [pid 7460] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7460] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7466] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7460] <... futex resumed>) = 0 [pid 7460] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7466] <... rseq resumed>) = 0 [pid 7466] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7466] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 268.172031][ T7421] BTRFS info (device loop1): disabling free space tree [pid 7466] memfd_create("syzkaller", 0) = 3 [pid 7466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7424] <... munmap resumed>) = 0 [pid 7466] <... mmap resumed>) = 0x7ff7d3800000 [pid 7424] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 7424] ioctl(5, LOOP_SET_FD, 4) = 0 [ 268.213061][ T7426] BTRFS info (device loop4): rebuilding free space tree [ 268.220361][ T7421] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 268.229131][ T7424] loop3: detected capacity change from 0 to 32768 [pid 7424] close(4) = 0 [pid 7424] close(5) = 0 [pid 7424] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 268.255619][ T7426] BTRFS info (device loop4): disabling free space tree [ 268.257761][ T7421] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 268.273538][ T7424] BTRFS: device /dev/loop3 (7:3) using temp-fsid d128f06d-5fd7-4883-8237-2cf72e8f5fb4 [ 268.287803][ T7426] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 268.314213][ T7424] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7424) [ 268.329305][ T7426] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7424] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 268.358349][ T7421] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 268.377069][ T7426] BTRFS info (device loop4): last unmount of filesystem a33fbdd4-af84-4563-b4ed-3794dd386536 [ 268.398341][ T7424] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 268.423216][ T7424] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 7432] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7421] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7426] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7426] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7426] ioctl(4, LOOP_CLR_FD) = 0 [pid 7426] close(4 [pid 7421] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7421] ioctl(4, LOOP_CLR_FD) = 0 [pid 7421] close(4 [ 268.714382][ T7424] BTRFS info (device loop3): rebuilding free space tree [ 268.781709][ T7424] BTRFS info (device loop3): disabling free space tree [ 268.804290][ T7424] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7466] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7426] <... close resumed>) = 0 [pid 7426] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7392] <... futex resumed>) = 0 [pid 7392] exit_group(0 [pid 7426] ???( [pid 7394] <... futex resumed>) = ? [pid 7392] <... exit_group resumed>) = ? [pid 7426] <... ??? resumed>) = ? [pid 7426] +++ exited with 0 +++ [pid 7394] +++ exited with 0 +++ [pid 7392] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7392, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=77 /* 0.77 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 268.837034][ T7424] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 7421] <... close resumed>) = 0 [pid 7421] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [ 268.885927][ T7424] BTRFS info (device loop3): last unmount of filesystem d128f06d-5fd7-4883-8237-2cf72e8f5fb4 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7421] <... futex resumed>) = 1 ./strace-static-x86_64: Process 7483 attached [pid 7388] <... futex resumed>) = 0 [pid 7388] exit_group(0) = ? [pid 7421] +++ exited with 0 +++ [pid 7391] <... futex resumed>) = ? [pid 7432] <... write resumed>) = 16777216 [pid 7483] set_robust_list(0x5555693e0760, 24 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 7483 [pid 7483] <... set_robust_list resumed>) = 0 [pid 7432] munmap(0x7ff7d3800000, 138412032 [pid 7483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7483] setpgid(0, 0) = 0 [pid 7483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7391] +++ exited with 0 +++ [pid 7388] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7388, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=125 /* 1.25 s */} --- [pid 7483] <... openat resumed>) = 3 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7483] write(3, "1000", 4executing program ) = 4 [pid 5844] <... openat resumed>) = 3 [pid 7483] close(3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 7483] <... close resumed>) = 0 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7483] write(1, "executing program\n", 18 [pid 5844] close(3 [pid 7483] <... write resumed>) = 18 [pid 7483] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7483] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7483] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7483] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7483] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7483] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5844] <... close resumed>) = 0 ./strace-static-x86_64: Process 7484 attached [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7484] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7483] <... clone3 resumed> => {parent_tid=[7484]}, 88) = 7484 [pid 7484] <... rseq resumed>) = 0 [pid 7483] rt_sigprocmask(SIG_SETMASK, [], [pid 7484] set_robust_list(0x7ff7dbc929a0, 24 [pid 7483] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7484] <... set_robust_list resumed>) = 0 [pid 7483] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7484] rt_sigprocmask(SIG_SETMASK, [], [pid 7483] <... futex resumed>) = 0 [pid 7484] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7483] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7485 attached [pid 7484] memfd_create("syzkaller", 0 [pid 7424] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 7485 [pid 7485] set_robust_list(0x5555693e0760, 24) = 0 [pid 7485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7485] setpgid(0, 0 [pid 7432] <... munmap resumed>) = 0 [pid 7485] <... setpgid resumed>) = 0 [pid 7485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7484] <... memfd_create resumed>) = 3 [pid 7485] write(3, "1000", 4 [pid 7484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7424] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7485] <... write resumed>) = 4 [pid 7484] <... mmap resumed>) = 0x7ff7d3800000 [pid 7424] <... openat resumed>) = 4 [pid 7485] close(3executing program ) = 0 [pid 7485] write(1, "executing program\n", 18) = 18 [pid 7432] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7485] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7432] <... openat resumed>) = 5 [pid 7485] <... futex resumed>) = 0 [pid 7432] ioctl(5, LOOP_SET_FD, 4 [pid 7485] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7424] ioctl(4, LOOP_CLR_FD) = 0 [pid 7485] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7485] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7485] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7485] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7485] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7424] close(4 [pid 7485] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7485] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7486]}, 88) = 7486 [pid 7485] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 7486 attached [pid 7485] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7485] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7486] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7432] <... ioctl resumed>) = 0 [pid 7486] <... rseq resumed>) = 0 [pid 7432] close(4 [pid 7486] set_robust_list(0x7ff7dbc929a0, 24 [pid 7432] <... close resumed>) = 0 [pid 7486] <... set_robust_list resumed>) = 0 [pid 7432] close(5 [pid 7486] rt_sigprocmask(SIG_SETMASK, [], [pid 7432] <... close resumed>) = 0 [pid 7486] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7432] mkdir("./bus", 0777 [pid 7486] memfd_create("syzkaller", 0 [pid 7432] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7432] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7486] <... memfd_create resumed>) = 3 [pid 7486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 269.011934][ T7432] loop0: detected capacity change from 0 to 32768 [ 269.046562][ T7432] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7432) [pid 7466] <... write resumed>) = 16777216 [pid 7466] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7466] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7466] ioctl(4, LOOP_CLR_FD) = 0 [pid 7466] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 269.078835][ T7432] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 269.106809][ T7432] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 7466] close(4) = 0 [ 269.252981][ T7432] BTRFS info (device loop0): rebuilding free space tree [ 269.332103][ T7432] BTRFS info (device loop0): disabling free space tree [pid 7466] close(3) = 0 [pid 7466] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7460] <... futex resumed>) = 0 [pid 7466] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7460] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7466] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7460] <... futex resumed>) = 0 [pid 7466] creat("./bus", 000 [pid 7460] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7466] <... creat resumed>) = 3 [pid 7466] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7460] <... futex resumed>) = 0 [pid 7460] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7466] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7460] <... futex resumed>) = 0 [pid 7460] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7424] <... close resumed>) = 0 [pid 7484] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7424] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7393] <... futex resumed>) = 0 [pid 7424] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7393] exit_group(0 [pid 7424] <... futex resumed>) = ? [pid 7395] <... futex resumed>) = ? [pid 7393] <... exit_group resumed>) = ? [pid 7395] +++ exited with 0 +++ [ 269.379108][ T7432] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 269.411718][ T7432] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7424] +++ exited with 0 +++ [pid 7393] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7393, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=90 /* 0.90 s */} --- [pid 7460] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7460] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7460] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7460] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5847] <... openat resumed>) = 3 [pid 7460] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7460] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 5847] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 7503 attached ) = -1 ENXIO (No such device or address) [pid 7503] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 5847] close(3 [pid 7503] <... rseq resumed>) = 0 [pid 5847] <... close resumed>) = 0 [pid 7460] <... clone3 resumed> => {parent_tid=[7503]}, 88) = 7503 [pid 7503] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7503] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7460] rt_sigprocmask(SIG_SETMASK, [], [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7460] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 7504 attached [pid 7460] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7504] set_robust_list(0x5555693e0760, 24 [pid 7503] <... futex resumed>) = 0 [pid 7460] <... futex resumed>) = 1 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 7504 [pid 7503] memfd_create("syzkaller", 0 [pid 7460] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7503] <... memfd_create resumed>) = 4 [pid 7503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7504] <... set_robust_list resumed>) = 0 [pid 7503] <... mmap resumed>) = 0x7ff7d3800000 [pid 7504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7486] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7504] <... prctl resumed>) = 0 [pid 7504] setpgid(0, 0) = 0 [pid 7504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7504] write(3, "1000", 4) = 4 [pid 7504] close(3) = 0 executing program [pid 7504] write(1, "executing program\n", 18) = 18 [pid 7504] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7504] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7504] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7504] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7504] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7504] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7505 attached => {parent_tid=[7505]}, 88) = 7505 [pid 7504] rt_sigprocmask(SIG_SETMASK, [], [pid 7505] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7504] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7505] <... rseq resumed>) = 0 [pid 7504] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7505] set_robust_list(0x7ff7dbc929a0, 24 [pid 7504] <... futex resumed>) = 0 [pid 7505] <... set_robust_list resumed>) = 0 [pid 7505] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7505] memfd_create("syzkaller", 0) = 3 [pid 7505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7504] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7486] <... write resumed>) = 16777216 [pid 7486] munmap(0x7ff7d3800000, 138412032 [pid 7484] <... write resumed>) = 16777216 [pid 7484] munmap(0x7ff7d3800000, 138412032 [pid 7486] <... munmap resumed>) = 0 [pid 7486] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7486] ioctl(4, LOOP_SET_FD, 3 [pid 7503] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7486] <... ioctl resumed>) = 0 [pid 7484] <... munmap resumed>) = 0 [pid 7484] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7486] close(3 [pid 7484] <... openat resumed>) = 4 [pid 7486] <... close resumed>) = 0 [pid 7484] ioctl(4, LOOP_SET_FD, 3 [pid 7486] close(4) = 0 [pid 7486] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7486] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7484] <... ioctl resumed>) = 0 [pid 7484] close(3) = 0 [pid 7484] close(4) = 0 [pid 7484] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 269.941118][ T7486] loop1: detected capacity change from 0 to 32768 [ 269.968112][ T7484] loop4: detected capacity change from 0 to 32768 [pid 7484] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7503] <... write resumed>) = 16777216 [ 270.119038][ T7484] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 270.153023][ T7484] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7503] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7503] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7503] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7503] ioctl(5, LOOP_CLR_FD) = 0 [ 270.167280][ T7486] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7503] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7503] close(5) = 0 [ 270.215092][ T7486] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7503] close(4 [pid 7505] <... write resumed>) = 16777216 [pid 7505] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7505] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7505] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7505] close(3) = 0 [pid 7505] close(4) = 0 [pid 7505] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7505] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7486] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7484] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7503] <... close resumed>) = 0 [pid 7486] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 270.432904][ T7484] bcachefs: bch2_fs_get_tree() error: EINVAL [ 270.440988][ T7505] loop3: detected capacity change from 0 to 32768 [ 270.450331][ T7486] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7484] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7486] <... openat resumed>) = 3 [pid 7484] <... openat resumed>) = 3 [pid 7486] ioctl(3, LOOP_CLR_FD [pid 7484] ioctl(3, LOOP_CLR_FD [pid 7486] <... ioctl resumed>) = 0 [pid 7484] <... ioctl resumed>) = 0 [pid 7486] close(3 [pid 7484] close(3 [pid 7503] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7460] <... futex resumed>) = 0 [pid 7503] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7466] <... write resumed>) = 16776704 [pid 7466] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7460] exit_group(0 [pid 7503] <... futex resumed>) = ? [pid 7460] <... exit_group resumed>) = ? [pid 7503] +++ exited with 0 +++ [pid 7466] +++ exited with 0 +++ [pid 5843] kill(-7397, SIGKILL [pid 7399] <... futex resumed>) = ? [pid 7397] <... futex resumed>) = ? [pid 5843] <... kill resumed>) = 0 [pid 7399] +++ killed by SIGKILL +++ [pid 5843] kill(7397, SIGKILL) = 0 [ 270.506491][ T7432] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7460] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7460, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=97 /* 0.97 s */} --- [pid 7432] <... mount resumed>) = ? [pid 7432] +++ killed by SIGKILL +++ [pid 7397] +++ killed by SIGKILL +++ [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=7397, si_uid=0, si_status=SIGKILL, si_utime=14 /* 0.14 s */, si_stime=73 /* 0.73 s */} --- [pid 5845] <... openat resumed>) = 3 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5845] ioctl(3, LOOP_CLR_FD [pid 7484] <... close resumed>) = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 5843] <... openat resumed>) = 3 [pid 7484] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] close(3 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 7484] <... futex resumed>) = 1 [pid 5845] <... close resumed>) = 0 [pid 5843] <... ioctl resumed>) = 0 [pid 7483] <... futex resumed>) = 0 [pid 7483] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7483] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7484] creat("./bus", 000 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] close(3./strace-static-x86_64: Process 7527 attached [pid 7527] set_robust_list(0x5555693e0760, 24) = 0 [pid 7527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 270.626108][ T7505] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 270.648666][ T7505] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7527] setpgid(0, 0) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 7527 [pid 7527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 7527] write(3, "1000", 4) = 4 [pid 7527] close(3) = 0 [pid 7527] write(1, "executing program\n", 18) = 18 [pid 7527] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7527] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7483] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7527] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7483] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7527] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7483] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7527] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7483] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7527] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7483] <... mprotect resumed>) = 0 [pid 7527] <... mprotect resumed>) = 0 [pid 7483] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7527] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7483] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7527] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7483] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7528 attached [pid 7528] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7527] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7483] <... clone3 resumed> => {parent_tid=[7528]}, 88) = 7528 [pid 7528] <... rseq resumed>) = 0 [pid 7483] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7528] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7483] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7527] <... clone3 resumed> => {parent_tid=[7529]}, 88) = 7529 ./strace-static-x86_64: Process 7529 attached [pid 7527] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7527] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7527] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7529] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7528] rt_sigprocmask(SIG_SETMASK, [], [pid 7483] <... futex resumed>) = 0 [pid 7483] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7528] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7528] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7529] <... rseq resumed>) = 0 [pid 7528] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7528] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7529] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7529] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7529] memfd_create("syzkaller", 0) = 3 [pid 7529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7528] <... futex resumed>) = 1 [pid 7483] <... futex resumed>) = 0 [pid 7528] memfd_create("syzkaller", 0 [pid 7483] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7528] <... memfd_create resumed>) = 4 [pid 7483] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7486] <... close resumed>) = 0 [pid 7486] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7486] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7485] <... futex resumed>) = 0 [pid 7505] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7485] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7486] <... futex resumed>) = 0 [pid 7485] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7486] creat("./bus", 000 [pid 7505] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 7505] ioctl(3, LOOP_CLR_FD) = 0 [pid 7505] close(3 [pid 5843] <... close resumed>) = 0 [ 270.878074][ T7505] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7485] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7485] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7485] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7485] <... mmap resumed>) = 0x7ff7dbc51000 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 7530 [pid 7485] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 7530 attached [pid 7530] set_robust_list(0x5555693e0760, 24 [pid 7485] <... mprotect resumed>) = 0 [pid 7530] <... set_robust_list resumed>) = 0 [pid 7485] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7485] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7530] <... prctl resumed>) = 0 [pid 7485] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 7530] setpgid(0, 0./strace-static-x86_64: Process 7531 attached [pid 7485] <... clone3 resumed> => {parent_tid=[7531]}, 88) = 7531 [pid 7530] <... setpgid resumed>) = 0 [pid 7485] rt_sigprocmask(SIG_SETMASK, [], [pid 7530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7485] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7531] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7530] <... openat resumed>) = 3 [pid 7485] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7485] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7530] write(3, "1000", 4) = 4 [pid 7531] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7531] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7531] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7530] close(3) = 0 executing program [pid 7531] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7530] write(1, "executing program\n", 18 [pid 7531] <... futex resumed>) = 1 [pid 7485] <... futex resumed>) = 0 [pid 7531] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7485] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7485] <... futex resumed>) = 0 [pid 7530] <... write resumed>) = 18 [pid 7530] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7531] memfd_create("syzkaller", 0 [pid 7530] <... futex resumed>) = 0 [pid 7485] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7530] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7530] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7530] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7530] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7531] <... memfd_create resumed>) = 4 [pid 7530] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7530] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7532 attached [pid 7532] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7531] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7532] <... rseq resumed>) = 0 [pid 7531] <... mmap resumed>) = 0x7ff7d3800000 [pid 7532] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7532] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7532] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7530] <... clone3 resumed> => {parent_tid=[7532]}, 88) = 7532 [pid 7530] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7530] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7532] <... futex resumed>) = 0 [pid 7530] <... futex resumed>) = 1 [pid 7532] memfd_create("syzkaller", 0) = 3 [pid 7532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7530] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7486] <... creat resumed>) = 3 [pid 7486] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7486] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7505] <... close resumed>) = 0 [pid 7484] <... creat resumed>) = 3 [pid 7484] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7484] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7505] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7504] <... futex resumed>) = 0 [pid 7505] creat("./bus", 000 [pid 7504] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7505] <... creat resumed>) = 3 [pid 7504] <... futex resumed>) = 0 [pid 7504] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7505] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7504] <... futex resumed>) = 0 [pid 7504] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7504] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7505] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7529] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7528] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7504] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7504] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7504] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7504] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7504] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7533]}, 88) = 7533 [pid 7504] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7504] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7504] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7533 attached [pid 7533] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7533] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7533] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7533] memfd_create("syzkaller", 0) = 4 [pid 7533] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7532] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7531] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7528] <... write resumed>) = 16777216 [pid 7533] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7528] munmap(0x7ff7d3800000, 138412032 [pid 7529] <... write resumed>) = 16777216 [pid 7528] <... munmap resumed>) = 0 [pid 7528] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7528] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7528] close(4) = 0 [pid 7528] close(5) = 0 [pid 7529] munmap(0x7ff7d3800000, 138412032 [pid 7528] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7528] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7529] <... munmap resumed>) = 0 [pid 7529] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7529] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7529] ioctl(4, LOOP_CLR_FD) = 0 [pid 7529] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 271.870629][ T7528] loop4: detected capacity change from 0 to 32768 [ 271.895954][ T7528] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7528) [pid 7529] close(4) = 0 [ 271.987866][ T7528] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7529] close(3 [pid 7531] <... write resumed>) = 16777216 [pid 7532] <... write resumed>) = 16777216 [pid 7531] munmap(0x7ff7d3800000, 138412032 [ 272.058118][ T7528] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 7532] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7531] <... munmap resumed>) = 0 [pid 7532] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7532] ioctl(4, LOOP_SET_FD, 3 [pid 7531] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 7531] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7531] close(4) = 0 [pid 7531] close(5) = 0 [pid 7531] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 272.199014][ T7532] loop0: detected capacity change from 0 to 32768 [ 272.210277][ T7531] loop1: detected capacity change from 0 to 32768 [pid 7531] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7532] <... ioctl resumed>) = 0 [pid 7532] close(3) = 0 [pid 7532] close(4) = 0 [pid 7532] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 272.241723][ T7531] BTRFS: device /dev/loop1 (7:1) using temp-fsid 79ec5c51-e83c-49f8-8ebd-f3380178d23e [ 272.272697][ T7528] BTRFS info (device loop4): rebuilding free space tree [ 272.292025][ T7531] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7531) [pid 7532] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7533] <... write resumed>) = 16777216 [ 272.360462][ T7528] BTRFS info (device loop4): disabling free space tree [ 272.377290][ T7528] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7533] munmap(0x7ff7d3800000, 138412032 [pid 7529] <... close resumed>) = 0 [ 272.410253][ T7528] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 272.449163][ T7531] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7533] <... munmap resumed>) = 0 [pid 7529] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7533] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 7533] ioctl(5, LOOP_SET_FD, 4 [pid 7529] <... futex resumed>) = 1 [pid 7527] <... futex resumed>) = 0 [pid 7527] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7529] creat("./bus", 000 [ 272.456180][ T7532] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 272.467795][ T7531] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 272.473859][ T7533] loop3: detected capacity change from 0 to 32768 [pid 7527] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7533] <... ioctl resumed>) = 0 [pid 7533] close(4) = 0 [pid 7533] close(5) = 0 [pid 7533] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7533] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7527] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7527] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7527] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7527] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7527] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7564]}, 88) = 7564 [pid 7527] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7527] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 7564 attached [pid 7527] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7564] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [ 272.540360][ T7533] BTRFS: device /dev/loop3 (7:3) using temp-fsid 09e78e00-518e-428b-9ec9-c3f440a8d871 [pid 7564] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7564] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7564] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7527] <... futex resumed>) = 0 [pid 7564] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7527] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7527] <... futex resumed>) = 0 [pid 7564] memfd_create("syzkaller", 0 [pid 7527] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7564] <... memfd_create resumed>) = 4 [pid 7564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 272.581807][ T7532] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 272.618080][ T7533] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7533) [pid 7505] <... write resumed>) = 16776704 [pid 7505] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 272.683713][ T7528] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7505] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7528] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7528] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 272.747262][ T7533] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7528] ioctl(4, LOOP_CLR_FD) = 0 [ 272.802349][ T7533] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 272.822224][ T7531] BTRFS info (device loop1): rebuilding free space tree [ 272.911556][ T7531] BTRFS info (device loop1): disabling free space tree [ 272.926123][ T7531] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 272.936612][ T7531] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7528] close(4 [pid 7532] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7532] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7532] ioctl(3, LOOP_CLR_FD) = 0 [ 272.968389][ T7532] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7532] close(3 [ 273.066301][ T7533] BTRFS info (device loop3): rebuilding free space tree [ 273.098892][ T7533] BTRFS info (device loop3): disabling free space tree [ 273.133213][ T7533] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7564] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7528] <... close resumed>) = 0 [pid 7528] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7483] <... futex resumed>) = 0 [pid 7528] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7483] exit_group(0 [pid 7528] <... futex resumed>) = ? [pid 7484] <... futex resumed>) = ? [pid 7483] <... exit_group resumed>) = ? [pid 7528] +++ exited with 0 +++ [pid 7484] +++ exited with 0 +++ [pid 7483] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7483, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=85 /* 0.85 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7590 attached , child_tidptr=0x5555693e0750) = 7590 [pid 7590] set_robust_list(0x5555693e0760, 24) = 0 [pid 7590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 273.188166][ T7533] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7590] setpgid(0, 0) = 0 [pid 7590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7590] write(3, "1000", 4) = 4 [pid 7590] close(3) = 0 executing program [pid 7590] write(1, "executing program\n", 18) = 18 [pid 7590] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7590] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7590] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7590] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7532] <... close resumed>) = 0 [pid 7590] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7532] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7530] <... futex resumed>) = 0 [pid 7530] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7590] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7532] creat("./bus", 000 [pid 7590] <... mprotect resumed>) = 0 [pid 7530] <... futex resumed>) = 0 [pid 7590] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7530] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7590] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7590] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7591 attached [pid 7532] <... creat resumed>) = 3 [pid 7591] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7590] <... clone3 resumed> => {parent_tid=[7591]}, 88) = 7591 [pid 7532] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7529] <... creat resumed>) = 3 [pid 7591] <... rseq resumed>) = 0 [pid 7590] rt_sigprocmask(SIG_SETMASK, [], [pid 7532] <... futex resumed>) = 1 [pid 7530] <... futex resumed>) = 0 [pid 7529] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7529] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7591] set_robust_list(0x7ff7dbc929a0, 24 [pid 7590] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7532] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7530] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7590] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7530] <... futex resumed>) = 0 [pid 7591] <... set_robust_list resumed>) = 0 [pid 7591] rt_sigprocmask(SIG_SETMASK, [], [pid 7590] <... futex resumed>) = 0 [pid 7530] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7591] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7590] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7591] memfd_create("syzkaller", 0) = 3 [pid 7591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 273.301521][ T7531] BTRFS info (device loop1): last unmount of filesystem 79ec5c51-e83c-49f8-8ebd-f3380178d23e [ 273.301869][ T7533] BTRFS info (device loop3): last unmount of filesystem 09e78e00-518e-428b-9ec9-c3f440a8d871 [pid 7530] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7530] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7530] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7530] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7530] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7592 attached [pid 7592] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7530] <... clone3 resumed> => {parent_tid=[7592]}, 88) = 7592 [pid 7592] <... rseq resumed>) = 0 [pid 7592] set_robust_list(0x7ff7dbc719a0, 24 [pid 7530] rt_sigprocmask(SIG_SETMASK, [], [pid 7592] <... set_robust_list resumed>) = 0 [pid 7530] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7592] rt_sigprocmask(SIG_SETMASK, [], [pid 7530] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7592] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7530] <... futex resumed>) = 0 [pid 7592] memfd_create("syzkaller", 0 [pid 7530] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7592] <... memfd_create resumed>) = 4 [pid 7592] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7531] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7531] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7531] ioctl(4, LOOP_CLR_FD) = 0 [pid 7531] close(4 [pid 7533] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7533] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7533] ioctl(4, LOOP_CLR_FD) = 0 [pid 7533] close(4 [pid 7564] <... write resumed>) = 16777216 [pid 7591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7564] munmap(0x7ff7d3800000, 138412032 [pid 7531] <... close resumed>) = 0 [pid 7564] <... munmap resumed>) = 0 [pid 7533] <... close resumed>) = 0 [pid 7531] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7485] <... futex resumed>) = 0 [pid 7485] exit_group(0) = ? [pid 7486] <... futex resumed>) = ? [pid 7486] +++ exited with 0 +++ [pid 7533] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7504] <... futex resumed>) = 0 [pid 7533] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7504] exit_group(0 [pid 7564] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7533] <... futex resumed>) = ? [pid 7505] <... futex resumed>) = ? [pid 7504] <... exit_group resumed>) = ? [pid 7564] <... openat resumed>) = 5 [pid 7533] +++ exited with 0 +++ [pid 7564] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7564] ioctl(5, LOOP_CLR_FD) = 0 [pid 7564] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7564] close(5) = 0 [pid 7564] close(4 [pid 7592] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7531] +++ exited with 0 +++ [pid 7485] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7485, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=105 /* 1.05 s */} --- [pid 7505] +++ exited with 0 +++ [pid 7504] +++ exited with 0 +++ [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7504, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=123 /* 1.23 s */} --- [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5844] <... close resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7593 ./strace-static-x86_64: Process 7593 attached [pid 5847] close(3 [pid 7593] set_robust_list(0x5555693e0760, 24 [pid 5847] <... close resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7593] <... set_robust_list resumed>) = 0 [pid 7593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 7594 attached [pid 7593] setpgid(0, 0 [pid 7594] set_robust_list(0x5555693e0760, 24 [pid 7593] <... setpgid resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 7594 [pid 7594] <... set_robust_list resumed>) = 0 [pid 7594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7594] setpgid(0, 0) = 0 [pid 7593] <... openat resumed>) = 3 [pid 7593] write(3, "1000", 4 [pid 7594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7593] <... write resumed>) = 4 [pid 7564] <... close resumed>) = 0 [pid 7594] write(3, "1000", 4 [pid 7593] close(3executing program executing program [pid 7594] <... write resumed>) = 4 [pid 7593] <... close resumed>) = 0 [pid 7594] close(3) = 0 [pid 7593] write(1, "executing program\n", 18 [pid 7594] write(1, "executing program\n", 18 [pid 7593] <... write resumed>) = 18 [pid 7594] <... write resumed>) = 18 [pid 7593] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7594] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7593] <... futex resumed>) = 0 [pid 7594] <... futex resumed>) = 0 [pid 7593] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7594] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7593] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7594] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7593] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7594] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7593] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7594] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7564] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7593] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7594] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7593] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7564] <... futex resumed>) = 1 [pid 7527] <... futex resumed>) = 0 [pid 7594] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7593] <... mprotect resumed>) = 0 [pid 7564] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7527] exit_group(0) = ? [pid 7529] <... futex resumed>) = ? [pid 7594] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7593] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7564] <... futex resumed>) = ? [pid 7529] +++ exited with 0 +++ [pid 7594] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7593] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7594] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7593] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7594] <... clone3 resumed> => {parent_tid=[7596]}, 88) = 7596 [pid 7593] <... clone3 resumed> => {parent_tid=[7595]}, 88) = 7595 ./strace-static-x86_64: Process 7595 attached [pid 7564] +++ exited with 0 +++ [pid 7527] +++ exited with 0 +++ [pid 7595] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7594] rt_sigprocmask(SIG_SETMASK, [], [pid 7593] rt_sigprocmask(SIG_SETMASK, [], [pid 7595] <... rseq resumed>) = 0 [pid 7594] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7593] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7527, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=78 /* 0.78 s */} --- ./strace-static-x86_64: Process 7596 attached [pid 7595] set_robust_list(0x7ff7dbc929a0, 24 [pid 7594] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7593] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7596] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7595] <... set_robust_list resumed>) = 0 [pid 7594] <... futex resumed>) = 0 [pid 7593] <... futex resumed>) = 0 [pid 7595] rt_sigprocmask(SIG_SETMASK, [], [pid 7594] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7595] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7593] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7596] <... rseq resumed>) = 0 [pid 7595] memfd_create("syzkaller", 0 [pid 5845] <... openat resumed>) = 3 [pid 7596] set_robust_list(0x7ff7dbc929a0, 24 [pid 7595] <... memfd_create resumed>) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 7595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] <... ioctl resumed>) = 0 [pid 7596] <... set_robust_list resumed>) = 0 [pid 7595] <... mmap resumed>) = 0x7ff7d3800000 [pid 5845] close(3 [pid 7596] rt_sigprocmask(SIG_SETMASK, [], [pid 5845] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7596] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7596] memfd_create("syzkaller", 0./strace-static-x86_64: Process 7597 attached [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 7597 [pid 7596] <... memfd_create resumed>) = 3 [pid 7596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7597] set_robust_list(0x5555693e0760, 24) = 0 [pid 7597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7597] setpgid(0, 0) = 0 [pid 7597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7597] write(3, "1000", 4) = 4 executing program [pid 7597] close(3) = 0 [pid 7597] write(1, "executing program\n", 18) = 18 [pid 7597] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7597] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7597] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7597] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7597] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7592] <... write resumed>) = 16777216 [pid 7597] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7597] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7598]}, 88) = 7598 [pid 7597] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7597] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7598 attached [pid 7598] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7598] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7598] memfd_create("syzkaller", 0) = 3 [pid 7597] <... futex resumed>) = 0 [pid 7592] munmap(0x7ff7d3800000, 138412032 [pid 7598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7597] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7598] <... mmap resumed>) = 0x7ff7d3800000 [pid 7591] <... write resumed>) = 16777216 [pid 7592] <... munmap resumed>) = 0 [pid 7591] munmap(0x7ff7d3800000, 138412032 [pid 7592] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 7592] ioctl(5, LOOP_SET_FD, 4 [pid 7591] <... munmap resumed>) = 0 [pid 7592] <... ioctl resumed>) = 0 [pid 7591] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7592] close(4) = 0 [pid 7591] <... openat resumed>) = 4 [pid 7592] close(5 [pid 7591] ioctl(4, LOOP_SET_FD, 3 [pid 7592] <... close resumed>) = 0 [pid 7592] mkdir("./bus", 0777 [pid 7591] <... ioctl resumed>) = 0 [pid 7592] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7592] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7591] close(3) = 0 [pid 7591] close(4) = 0 [ 274.378471][ T7592] loop0: detected capacity change from 0 to 32768 [ 274.386645][ T7591] loop4: detected capacity change from 0 to 32768 [ 274.414856][ T7592] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7592) [pid 7591] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7591] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 274.461345][ T7592] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 274.497776][ T7592] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 7595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7532] <... write resumed>) = 16776704 [pid 7532] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7532] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 274.669254][ T7591] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 274.716652][ T7591] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 274.738164][ T7592] BTRFS info (device loop0): rebuilding free space tree [pid 7596] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 274.788506][ T7592] BTRFS info (device loop0): disabling free space tree [ 274.795609][ T7592] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 274.823441][ T7592] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7598] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7595] <... write resumed>) = 16777216 [pid 7595] munmap(0x7ff7d3800000, 138412032) = 0 [ 274.888864][ T7592] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7595] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7595] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7595] close(3 [pid 7592] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7591] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7595] <... close resumed>) = 0 [pid 7592] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7591] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7595] close(4 [pid 7591] <... openat resumed>) = 3 [pid 7595] <... close resumed>) = 0 [pid 7595] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7595] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7591] ioctl(3, LOOP_CLR_FD [pid 7592] <... openat resumed>) = 4 [pid 7592] ioctl(4, LOOP_CLR_FD) = 0 [pid 7592] close(4 [pid 7591] <... ioctl resumed>) = 0 [ 274.960245][ T7591] bcachefs: bch2_fs_get_tree() error: EINVAL [ 274.980178][ T7595] loop1: detected capacity change from 0 to 32768 [pid 7591] close(3 [pid 7596] <... write resumed>) = 16777216 [pid 7596] munmap(0x7ff7d3800000, 138412032 [pid 7591] <... close resumed>) = 0 [pid 7591] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7590] <... futex resumed>) = 0 [pid 7596] <... munmap resumed>) = 0 [pid 7591] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7590] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7596] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7590] <... futex resumed>) = 0 [pid 7591] creat("./bus", 000 [pid 7596] <... openat resumed>) = 4 [pid 7590] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7596] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7596] close(3 [pid 7590] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7596] <... close resumed>) = 0 [pid 7596] close(4) = 0 [pid 7590] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7590] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7590] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7590] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7596] mkdir("./file1", 0777 [pid 7590] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7629]}, 88) = 7629 [pid 7590] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 7629 attached [pid 7590] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 275.181086][ T7595] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 275.208289][ T7596] loop3: detected capacity change from 0 to 32768 [ 275.214380][ T7595] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7590] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7629] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7596] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7629] <... rseq resumed>) = 0 [pid 7596] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7629] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7629] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7629] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7590] <... futex resumed>) = 0 [pid 7629] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7590] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7590] <... futex resumed>) = 0 [pid 7629] memfd_create("syzkaller", 0 [pid 7590] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7629] <... memfd_create resumed>) = 4 [pid 7629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7598] <... write resumed>) = 16777216 [pid 7592] <... close resumed>) = 0 [pid 7598] munmap(0x7ff7d3800000, 138412032 [pid 7592] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7530] <... futex resumed>) = 0 [pid 7592] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7530] exit_group(0 [pid 7592] <... futex resumed>) = ? [pid 7532] <... futex resumed>) = ? [pid 7530] <... exit_group resumed>) = ? [pid 7598] <... munmap resumed>) = 0 [pid 7532] +++ exited with 0 +++ [pid 7598] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7598] ioctl(4, LOOP_CLR_FD) = 0 [pid 7598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7598] close(4 [pid 7592] +++ exited with 0 +++ [pid 7530] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7530, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=108 /* 1.08 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7637 ./strace-static-x86_64: Process 7637 attached [pid 7598] <... close resumed>) = 0 [pid 7598] close(3 [pid 7637] set_robust_list(0x5555693e0760, 24) = 0 [ 275.393554][ T7596] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 275.413187][ T7596] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete executing program [pid 7637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7637] setpgid(0, 0) = 0 [pid 7637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7637] write(3, "1000", 4) = 4 [pid 7637] close(3) = 0 [pid 7637] write(1, "executing program\n", 18) = 18 [pid 7637] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7637] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7637] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7637] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7637] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7637] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7638]}, 88) = 7638 [pid 7637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7637] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7637] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7638 attached [pid 7638] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7638] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7591] <... creat resumed>) = 3 [pid 7591] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7638] memfd_create("syzkaller", 0 [pid 7595] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7591] <... futex resumed>) = 0 [pid 7638] <... memfd_create resumed>) = 3 [ 275.461335][ T7595] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7595] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7591] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7595] <... openat resumed>) = 3 [pid 7595] ioctl(3, LOOP_CLR_FD) = 0 [pid 7595] close(3 [pid 7596] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7596] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 7596] ioctl(3, LOOP_CLR_FD) = 0 [ 275.686204][ T7596] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7596] close(3 [pid 7598] <... close resumed>) = 0 [pid 7598] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7597] <... futex resumed>) = 0 [pid 7597] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7597] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7598] creat("./bus", 000) = 3 [pid 7598] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7595] <... close resumed>) = 0 [pid 7598] <... futex resumed>) = 1 [pid 7597] <... futex resumed>) = 0 [pid 7597] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7597] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7598] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7595] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7593] <... futex resumed>) = 0 [pid 7593] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7595] creat("./bus", 000 [pid 7593] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7629] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7597] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7597] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 7597] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7597] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7597] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7597] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7639 attached [pid 7639] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7597] <... clone3 resumed> => {parent_tid=[7639]}, 88) = 7639 [pid 7593] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7593] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7597] rt_sigprocmask(SIG_SETMASK, [], [pid 7593] <... futex resumed>) = 0 [pid 7597] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7597] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7593] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7597] <... futex resumed>) = 0 [pid 7593] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7597] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7593] <... mprotect resumed>) = 0 [pid 7593] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7593] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7640]}, 88) = 7640 [pid 7593] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7593] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7593] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7640 attached [pid 7639] <... rseq resumed>) = 0 [pid 7639] set_robust_list(0x7ff7dbc719a0, 24 [pid 7640] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7640] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7639] <... set_robust_list resumed>) = 0 [pid 7640] rt_sigprocmask(SIG_SETMASK, [], [pid 7639] rt_sigprocmask(SIG_SETMASK, [], [pid 7640] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7639] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7640] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7639] memfd_create("syzkaller", 0 [pid 7640] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7639] <... memfd_create resumed>) = 4 [pid 7640] <... futex resumed>) = 1 [pid 7593] <... futex resumed>) = 0 [pid 7639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7640] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7593] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7639] <... mmap resumed>) = 0x7ff7d3800000 [pid 7593] <... futex resumed>) = 0 [pid 7640] memfd_create("syzkaller", 0 [pid 7593] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7640] <... memfd_create resumed>) = 4 [pid 7640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7596] <... close resumed>) = 0 [pid 7596] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7594] <... futex resumed>) = 0 [pid 7596] creat("./bus", 000 [pid 7594] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7594] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7594] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7594] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7594] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7594] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7641]}, 88) = 7641 [pid 7594] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7594] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7594] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7641 attached [pid 7641] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7641] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7641] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7641] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7594] <... futex resumed>) = 0 [pid 7641] memfd_create("syzkaller", 0 [pid 7594] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7594] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7641] <... memfd_create resumed>) = 4 [pid 7641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7629] <... write resumed>) = 16777216 [pid 7629] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7629] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7629] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7629] close(4) = 0 [pid 7629] close(5) = 0 [pid 7629] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 276.250459][ T7629] loop4: detected capacity change from 0 to 32768 [pid 7629] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7640] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 276.329595][ T7629] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7629) [ 276.380125][ T7629] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 276.412028][ T7629] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 7639] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7638] <... write resumed>) = 16777216 [pid 7638] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7638] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7638] close(3) = 0 [pid 7638] close(4) = 0 [pid 7638] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7638] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 276.544470][ T7638] loop0: detected capacity change from 0 to 32768 [ 276.572955][ T7629] BTRFS info (device loop4): rebuilding free space tree [pid 7641] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7639] <... write resumed>) = 16777216 [ 276.644637][ T7638] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 276.662721][ T7638] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 276.671216][ T7629] BTRFS info (device loop4): disabling free space tree [pid 7639] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7639] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7639] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7639] ioctl(5, LOOP_CLR_FD) = 0 [pid 7639] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7639] close(5) = 0 [ 276.758763][ T7629] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 276.798313][ T7629] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7639] close(4 [pid 7640] <... write resumed>) = 16777216 [pid 7640] munmap(0x7ff7d3800000, 138412032 [pid 7638] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7640] <... munmap resumed>) = 0 [pid 7638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 276.924897][ T7638] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7640] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 7640] ioctl(5, LOOP_SET_FD, 4 [pid 7638] ioctl(3, LOOP_CLR_FD) = 0 [pid 7640] <... ioctl resumed>) = 0 [ 276.982555][ T7640] loop1: detected capacity change from 0 to 32768 [pid 7638] close(3 [pid 7598] <... write resumed>) = 16776704 [pid 7640] close(4 [pid 7598] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7640] <... close resumed>) = 0 [pid 7598] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7640] close(5) = 0 [pid 7640] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7640] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7639] <... close resumed>) = 0 [pid 7639] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7597] <... futex resumed>) = 0 [pid 7639] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7597] exit_group(0 [pid 7639] <... futex resumed>) = ? [pid 7598] <... futex resumed>) = ? [pid 7597] <... exit_group resumed>) = ? [pid 7639] +++ exited with 0 +++ [pid 7598] +++ exited with 0 +++ [pid 7597] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7597, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=110 /* 1.10 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7665 [ 277.060402][ T7640] BTRFS: device /dev/loop1 (7:1) using temp-fsid 2a5310b6-d2db-42f7-8009-bbaf079f3ed1 [ 277.096979][ T7640] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7640) ./strace-static-x86_64: Process 7665 attached [pid 7665] set_robust_list(0x5555693e0760, 24) = 0 [pid 7665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7665] setpgid(0, 0) = 0 [pid 7665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7665] write(3, "1000", 4) = 4 [pid 7665] close(3) = 0 executing program [pid 7665] write(1, "executing program\n", 18) = 18 [pid 7665] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7665] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7665] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7665] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7665] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7665] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7666 attached [pid 7666] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7665] <... clone3 resumed> => {parent_tid=[7666]}, 88) = 7666 [pid 7666] <... rseq resumed>) = 0 [pid 7665] rt_sigprocmask(SIG_SETMASK, [], [pid 7666] set_robust_list(0x7ff7dbc929a0, 24 [pid 7665] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7666] <... set_robust_list resumed>) = 0 [pid 7665] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7666] rt_sigprocmask(SIG_SETMASK, [], [pid 7665] <... futex resumed>) = 0 [pid 7665] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7666] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7666] memfd_create("syzkaller", 0) = 3 [pid 7666] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7641] <... write resumed>) = 16777216 [pid 7666] <... mmap resumed>) = 0x7ff7d3800000 [pid 7641] munmap(0x7ff7d3800000, 138412032) = 0 [ 277.167784][ T7640] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7641] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 7641] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7641] close(4) = 0 [pid 7641] close(5) = 0 [pid 7641] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 277.208330][ T7640] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 277.230230][ T7641] loop3: detected capacity change from 0 to 32768 [pid 7641] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7638] <... close resumed>) = 0 [ 277.268042][ T7641] BTRFS: device /dev/loop3 (7:3) using temp-fsid c077ea69-853d-4d92-a7eb-0b9647673388 [pid 7638] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7637] <... futex resumed>) = 0 [pid 7638] creat("./bus", 000 [pid 7637] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 277.309926][ T7641] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7641) [pid 7637] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7637] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 277.368753][ T7641] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 277.404035][ T7640] BTRFS info (device loop1): rebuilding free space tree [pid 7637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7637] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7637] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7637] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7683 attached => {parent_tid=[7683]}, 88) = 7683 [ 277.414139][ T7641] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 7637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7683] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7637] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7683] set_robust_list(0x7ff7dbc719a0, 24 [pid 7637] <... futex resumed>) = 0 [pid 7683] <... set_robust_list resumed>) = 0 [pid 7637] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7683] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7683] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7683] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7637] <... futex resumed>) = 0 [pid 7637] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7683] memfd_create("syzkaller", 0 [pid 7637] <... futex resumed>) = 0 [pid 7637] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7683] <... memfd_create resumed>) = 4 [pid 7683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7666] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7683] <... mmap resumed>) = 0x7ff7d3800000 [ 277.439990][ T7640] BTRFS info (device loop1): disabling free space tree [ 277.446970][ T7640] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 277.477757][ T7640] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7638] <... creat resumed>) = 3 [pid 7596] <... creat resumed>) = 3 [pid 7638] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7638] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7596] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7596] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7595] <... creat resumed>) = 3 [pid 7595] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 277.555207][ T7629] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 277.566950][ T7640] BTRFS info (device loop1): last unmount of filesystem 2a5310b6-d2db-42f7-8009-bbaf079f3ed1 [ 277.605570][ T7641] BTRFS info (device loop3): rebuilding free space tree [pid 7595] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7629] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7629] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7629] ioctl(4, LOOP_CLR_FD) = 0 [pid 7629] close(4 [pid 7640] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 277.669918][ T7641] BTRFS info (device loop3): disabling free space tree [ 277.676903][ T7641] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7640] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7640] ioctl(4, LOOP_CLR_FD) = 0 [ 277.729423][ T7641] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7640] close(4 [pid 7666] <... write resumed>) = 16777216 [pid 7666] munmap(0x7ff7d3800000, 138412032) = 0 [ 277.832765][ T7641] BTRFS info (device loop3): last unmount of filesystem c077ea69-853d-4d92-a7eb-0b9647673388 [pid 7666] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7666] ioctl(4, LOOP_CLR_FD) = 0 [pid 7666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7641] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7666] close(4) = 0 [pid 7666] close(3 [pid 7641] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7641] ioctl(4, LOOP_CLR_FD) = 0 [pid 7641] close(4) = 0 [pid 7641] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7594] <... futex resumed>) = 0 [pid 7594] exit_group(0 [pid 7596] <... futex resumed>) = ? [pid 7594] <... exit_group resumed>) = ? [pid 7596] +++ exited with 0 +++ [pid 7641] +++ exited with 0 +++ [pid 7594] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7594, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=78 /* 0.78 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = 0 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7700 attached [pid 7700] set_robust_list(0x5555693e0760, 24) = 0 [pid 7700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7700] setpgid(0, 0) = 0 [pid 7700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7700] write(3, "1000", 4) = 4 [pid 7700] close(3) = 0 executing program [pid 7700] write(1, "executing program\n", 18) = 18 [pid 7700] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7700] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 7700 [pid 7700] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7700] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7700] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7700] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7700] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7701]}, 88) = 7701 [pid 7700] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7701 attached NULL, 8) = 0 [pid 7700] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7701] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7700] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7701] <... rseq resumed>) = 0 [pid 7701] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7701] memfd_create("syzkaller", 0) = 3 [pid 7701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7640] <... close resumed>) = 0 [pid 7683] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7640] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7593] <... futex resumed>) = 0 [pid 7640] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7593] exit_group(0 [pid 7640] <... futex resumed>) = ? [pid 7595] <... futex resumed>) = ? [pid 7593] <... exit_group resumed>) = ? [pid 7640] +++ exited with 0 +++ [pid 7595] +++ exited with 0 +++ [pid 7593] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7593, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=98 /* 0.98 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7702 attached [pid 7702] set_robust_list(0x5555693e0760, 24) = 0 [pid 7629] <... close resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 7702 [pid 7702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7629] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7590] <... futex resumed>) = 0 [pid 7702] setpgid(0, 0) = 0 [pid 7702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7590] exit_group(0 [pid 7702] <... openat resumed>) = 3 [pid 7702] write(3, "1000", 4 [pid 7590] <... exit_group resumed>) = ? [pid 7702] <... write resumed>) = 4 [pid 7591] <... futex resumed>) = ? [pid 7702] close(3executing program ) = 0 [pid 7702] write(1, "executing program\n", 18 [pid 7591] +++ exited with 0 +++ [pid 7702] <... write resumed>) = 18 [pid 7702] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7702] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7702] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7702] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7702] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7629] +++ exited with 0 +++ [pid 7590] +++ exited with 0 +++ [pid 7702] <... mprotect resumed>) = 0 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7590, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=102 /* 1.02 s */} --- [pid 7702] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7702] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5850] <... openat resumed>) = 3 [pid 7702] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5850] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 7703 attached ) = -1 ENXIO (No such device or address) [pid 7703] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7703] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7702] <... clone3 resumed> => {parent_tid=[7703]}, 88) = 7703 [pid 5850] close(3 [pid 7703] rt_sigprocmask(SIG_SETMASK, [], [pid 7702] rt_sigprocmask(SIG_SETMASK, [], [pid 5850] <... close resumed>) = 0 [pid 7702] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7703] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7702] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7703] memfd_create("syzkaller", 0 [pid 7702] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7703] <... memfd_create resumed>) = 3 [pid 7703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 7704 ./strace-static-x86_64: Process 7704 attached [pid 7704] set_robust_list(0x5555693e0760, 24) = 0 [pid 7704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7704] setpgid(0, 0) = 0 [pid 7704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7704] write(3, "1000", 4) = 4 [pid 7704] close(3) = 0 executing program [pid 7704] write(1, "executing program\n", 18) = 18 [pid 7704] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7704] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7704] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7704] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7704] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7704] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7705 attached [pid 7705] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7704] <... clone3 resumed> => {parent_tid=[7705]}, 88) = 7705 [pid 7704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7704] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7705] <... rseq resumed>) = 0 [pid 7704] <... futex resumed>) = 0 [pid 7705] set_robust_list(0x7ff7dbc929a0, 24 [pid 7704] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7705] <... set_robust_list resumed>) = 0 [pid 7705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7705] memfd_create("syzkaller", 0) = 3 [pid 7705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7666] <... close resumed>) = 0 [pid 7666] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7666] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7665] <... futex resumed>) = 0 [pid 7665] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7665] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7666] creat("./bus", 000) = 3 [pid 7666] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7665] <... futex resumed>) = 0 [pid 7666] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7665] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7665] <... futex resumed>) = 0 [pid 7665] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7666] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7665] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7665] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 7665] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7665] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7665] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7665] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7706]}, 88) = 7706 [pid 7665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7665] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7665] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7706 attached [pid 7706] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7706] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7706] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7706] memfd_create("syzkaller", 0) = 4 [pid 7706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7701] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7683] <... write resumed>) = 16777216 [pid 7683] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 7683] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7683] close(4 [pid 7703] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7683] <... close resumed>) = 0 [pid 7683] close(5) = 0 [pid 7683] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 278.663123][ T7683] loop0: detected capacity change from 0 to 32768 [pid 7683] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 278.728926][ T7683] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7683) [ 278.809618][ T7683] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 278.847852][ T7683] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 7705] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7706] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7705] <... write resumed>) = 16777216 [pid 7705] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7705] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7705] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7705] close(3) = 0 [ 279.080166][ T7683] BTRFS info (device loop0): rebuilding free space tree [ 279.108447][ T7705] loop4: detected capacity change from 0 to 32768 [pid 7705] close(4) = 0 [pid 7705] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 279.144972][ T7683] BTRFS info (device loop0): disabling free space tree [ 279.175014][ T7683] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7705] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7701] <... write resumed>) = 16777216 [pid 7701] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7701] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 279.203232][ T7683] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7701] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7701] close(3) = 0 [pid 7701] close(4) = 0 [pid 7701] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 279.246757][ T7701] loop3: detected capacity change from 0 to 32768 [pid 7701] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7666] <... write resumed>) = 16776704 [pid 7703] <... write resumed>) = 16777216 [pid 7666] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7666] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 279.342632][ T7705] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 279.352697][ T7705] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 279.366265][ T7683] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7703] munmap(0x7ff7d3800000, 138412032 [pid 7706] <... write resumed>) = 16777216 [pid 7706] munmap(0x7ff7d3800000, 138412032 [pid 7703] <... munmap resumed>) = 0 [pid 7703] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7703] ioctl(4, LOOP_SET_FD, 3 [pid 7706] <... munmap resumed>) = 0 [pid 7706] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7706] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7706] ioctl(5, LOOP_CLR_FD) = 0 [pid 7706] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7706] close(5) = 0 [ 279.415860][ T7701] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 279.441469][ T7703] loop1: detected capacity change from 0 to 32768 [ 279.447974][ T7701] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7706] close(4 [pid 7683] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7703] <... ioctl resumed>) = 0 [pid 7703] close(3) = 0 [pid 7703] close(4 [pid 7683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7703] <... close resumed>) = 0 [pid 7683] ioctl(4, LOOP_CLR_FD) = 0 [pid 7703] mkdir("./file1", 0777 [pid 7683] close(4 [pid 7703] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7703] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7706] <... close resumed>) = 0 [pid 7706] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7706] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7665] <... futex resumed>) = 0 [pid 7665] exit_group(0 [pid 7706] <... futex resumed>) = ? [pid 7665] <... exit_group resumed>) = ? [pid 7706] +++ exited with 0 +++ [pid 7666] <... futex resumed>) = ? [pid 7666] +++ exited with 0 +++ [pid 7701] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7683] <... close resumed>) = 0 [pid 7705] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 279.684315][ T7701] bcachefs: bch2_fs_get_tree() error: EINVAL [ 279.694358][ T7705] bcachefs: bch2_fs_get_tree() error: EINVAL [ 279.720708][ T7703] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7701] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7705] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7701] <... openat resumed>) = 3 [pid 7683] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7701] ioctl(3, LOOP_CLR_FD) = 0 [pid 7683] <... futex resumed>) = 1 [pid 7637] <... futex resumed>) = 0 [pid 7701] close(3 [pid 7683] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7637] exit_group(0 [pid 7683] <... futex resumed>) = ? [pid 7638] <... futex resumed>) = ? [pid 7637] <... exit_group resumed>) = ? [pid 7683] +++ exited with 0 +++ [ 279.730885][ T7703] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7705] <... openat resumed>) = 3 [pid 7705] ioctl(3, LOOP_CLR_FD) = 0 [pid 7705] close(3 [pid 7703] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7703] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 7703] ioctl(3, LOOP_CLR_FD) = 0 [pid 7703] close(3 [pid 7638] +++ exited with 0 +++ [pid 7637] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7637, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=87 /* 0.87 s */} --- [ 279.886437][ T7703] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7744 attached , child_tidptr=0x5555693e0750) = 7744 [pid 7744] set_robust_list(0x5555693e0760, 24) = 0 [pid 7744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7665] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7665, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=101 /* 1.01 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7744] <... prctl resumed>) = 0 [pid 7744] setpgid(0, 0) = 0 [pid 7744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7744] write(3, "1000", 4 [pid 5845] <... openat resumed>) = 3 [pid 7744] <... write resumed>) = 4 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 7744] close(3 [pid 5845] <... ioctl resumed>) = 0 [pid 7744] <... close resumed>) = 0 [pid 5845] close(3executing program [pid 7744] write(1, "executing program\n", 18 [pid 5845] <... close resumed>) = 0 [pid 7744] <... write resumed>) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7744] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 7745 ./strace-static-x86_64: Process 7745 attached [pid 7744] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7744] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7745] set_robust_list(0x5555693e0760, 24 [pid 7744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7745] <... set_robust_list resumed>) = 0 [pid 7744] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7705] <... close resumed>) = 0 [pid 7744] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7744] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7744] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7746]}, 88) = 7746 [pid 7744] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7744] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7745] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 7746 attached [pid 7744] <... futex resumed>) = 0 [pid 7746] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7744] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7746] <... rseq resumed>) = 0 [pid 7745] <... prctl resumed>) = 0 [pid 7705] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7746] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7746] memfd_create("syzkaller", 0) = 3 [pid 7746] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7745] setpgid(0, 0 [pid 7705] <... futex resumed>) = 1 [pid 7745] <... setpgid resumed>) = 0 [pid 7745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7705] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7704] <... futex resumed>) = 0 [pid 7746] <... mmap resumed>) = 0x7ff7d3800000 [pid 7745] <... openat resumed>) = 3 [pid 7705] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7704] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7745] write(3, "1000", 4) = 4 [pid 7705] creat("./bus", 000 [pid 7704] <... futex resumed>) = 0 [pid 7745] close(3 [pid 7704] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7745] <... close resumed>) = 0 executing program [pid 7745] write(1, "executing program\n", 18) = 18 [pid 7745] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7745] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7745] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7745] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7745] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7745] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7747 attached [pid 7747] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7745] <... clone3 resumed> => {parent_tid=[7747]}, 88) = 7747 [pid 7747] <... rseq resumed>) = 0 [pid 7745] rt_sigprocmask(SIG_SETMASK, [], [pid 7747] set_robust_list(0x7ff7dbc929a0, 24 [pid 7745] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7747] <... set_robust_list resumed>) = 0 [pid 7745] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7747] rt_sigprocmask(SIG_SETMASK, [], [pid 7745] <... futex resumed>) = 0 [pid 7747] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7745] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7747] memfd_create("syzkaller", 0) = 3 [pid 7747] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7704] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7704] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7704] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7701] <... close resumed>) = 0 [pid 7704] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7701] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7704] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7701] <... futex resumed>) = 1 [pid 7700] <... futex resumed>) = 0 [pid 7704] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 7700] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7748 attached [pid 7701] creat("./bus", 000 [pid 7700] <... futex resumed>) = 0 [pid 7748] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7704] <... clone3 resumed> => {parent_tid=[7748]}, 88) = 7748 [pid 7700] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7748] <... rseq resumed>) = 0 [pid 7704] rt_sigprocmask(SIG_SETMASK, [], [pid 7748] set_robust_list(0x7ff7dbc719a0, 24 [pid 7704] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7748] <... set_robust_list resumed>) = 0 [pid 7704] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7748] rt_sigprocmask(SIG_SETMASK, [], [pid 7704] <... futex resumed>) = 0 [pid 7748] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7704] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7748] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7748] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7704] <... futex resumed>) = 0 [pid 7748] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7704] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7748] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7704] <... futex resumed>) = 0 [pid 7748] memfd_create("syzkaller", 0 [pid 7704] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7748] <... memfd_create resumed>) = 4 [pid 7748] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7700] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7700] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7700] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7700] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7700] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7749 attached => {parent_tid=[7749]}, 88) = 7749 [pid 7700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7700] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7749] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7700] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7749] <... rseq resumed>) = 0 [pid 7749] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7749] rt_sigprocmask(SIG_SETMASK, [], [pid 7703] <... close resumed>) = 0 [pid 7749] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7749] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7749] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7700] <... futex resumed>) = 0 [pid 7749] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7700] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7700] <... futex resumed>) = 0 [pid 7749] memfd_create("syzkaller", 0 [pid 7700] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7749] <... memfd_create resumed>) = 4 [pid 7749] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7703] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7749] <... mmap resumed>) = 0x7ff7d3800000 [pid 7703] <... futex resumed>) = 1 [pid 7702] <... futex resumed>) = 0 [pid 7703] creat("./bus", 000 [pid 7702] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7702] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7702] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7702] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7702] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7702] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7702] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7750]}, 88) = 7750 [pid 7702] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7702] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7702] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7750 attached [pid 7750] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7750] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7750] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7750] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7702] <... futex resumed>) = 0 [pid 7702] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7702] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7750] memfd_create("syzkaller", 0) = 4 [pid 7750] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7705] <... creat resumed>) = 3 [pid 7703] <... creat resumed>) = 3 [pid 7701] <... creat resumed>) = 3 [pid 7703] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7701] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7703] <... futex resumed>) = 0 [pid 7701] <... futex resumed>) = 0 [pid 7701] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7703] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7705] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7746] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7705] <... futex resumed>) = 0 [pid 7705] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7748] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7747] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7749] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7750] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7746] <... write resumed>) = 16777216 [pid 7746] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7746] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7746] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7746] close(3) = 0 [pid 7746] close(4) = 0 [pid 7746] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7746] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7747] <... write resumed>) = 16777216 [pid 7747] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7747] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 280.935430][ T7746] loop0: detected capacity change from 0 to 32768 [pid 7747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7747] ioctl(4, LOOP_CLR_FD) = 0 [pid 7747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7747] close(4) = 0 [ 281.041264][ T7746] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 281.050838][ T7746] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7747] close(3 [pid 7748] <... write resumed>) = 16777216 [pid 7748] munmap(0x7ff7d3800000, 138412032 [pid 7749] <... write resumed>) = 16777216 [pid 7749] munmap(0x7ff7d3800000, 138412032 [pid 7748] <... munmap resumed>) = 0 [pid 7747] <... close resumed>) = 0 [pid 7747] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7745] <... futex resumed>) = 0 [pid 7747] creat("./bus", 000 [pid 7745] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7747] <... creat resumed>) = 3 [pid 7745] <... futex resumed>) = 0 [pid 7745] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7748] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7749] <... munmap resumed>) = 0 [pid 7747] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7745] <... futex resumed>) = 0 [pid 7747] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7745] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7749] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7748] <... openat resumed>) = 5 [pid 7745] <... futex resumed>) = 0 [pid 7749] <... openat resumed>) = 5 [pid 7748] ioctl(5, LOOP_SET_FD, 4 [pid 7745] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7748] <... ioctl resumed>) = 0 [pid 7750] <... write resumed>) = 16777216 [pid 7749] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7748] close(4 [pid 7749] close(4 [pid 7748] <... close resumed>) = 0 [pid 7749] <... close resumed>) = 0 [pid 7748] close(5 [pid 7749] close(5 [pid 7748] <... close resumed>) = 0 [pid 7749] <... close resumed>) = 0 [pid 7748] mkdir("./bus", 0777 [pid 7749] mkdir("./bus", 0777 [pid 7748] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7749] <... mkdir resumed>) = -1 EEXIST (File exists) [ 281.189701][ T7748] loop4: detected capacity change from 0 to 32768 [ 281.208401][ T7749] loop3: detected capacity change from 0 to 32768 [pid 7750] munmap(0x7ff7d3800000, 138412032 [pid 7749] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7748] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7745] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7745] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7745] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7745] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7745] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7758]}, 88) = 7758 [pid 7745] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7758 attached [pid 7758] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7745] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7745] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7745] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7758] <... rseq resumed>) = 0 [ 281.242178][ T7749] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7749) [ 281.268712][ T7748] BTRFS: device /dev/loop4 (7:4) using temp-fsid c8ed1827-2c3f-43c2-a083-322fbee41ded [ 281.278817][ T7749] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7758] set_robust_list(0x7ff7dbc719a0, 24 [pid 7750] <... munmap resumed>) = 0 [pid 7758] <... set_robust_list resumed>) = 0 [pid 7750] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 7750] ioctl(5, LOOP_SET_FD, 4 [pid 7758] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7750] <... ioctl resumed>) = 0 [ 281.289067][ T7748] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7748) [ 281.302384][ T7749] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 281.312224][ T7746] bcachefs: bch2_fs_get_tree() error: EINVAL [ 281.318548][ T7750] loop1: detected capacity change from 0 to 32768 [pid 7750] close(4) = 0 [pid 7758] memfd_create("syzkaller", 0 [pid 7750] close(5 [pid 7758] <... memfd_create resumed>) = 4 [pid 7758] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7750] <... close resumed>) = 0 [pid 7758] <... mmap resumed>) = 0x7ff7d3800000 [pid 7750] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7750] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7746] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 281.340829][ T7748] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 281.371915][ T7750] BTRFS: device /dev/loop1 (7:1) using temp-fsid d6defa02-6b99-4aca-81e2-ab6eff8da954 [pid 7746] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7746] ioctl(3, LOOP_CLR_FD) = 0 [ 281.410231][ T7748] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 281.444760][ T7750] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7750) [ 281.599693][ T7750] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 281.640467][ T7749] BTRFS info (device loop3): rebuilding free space tree [ 281.647764][ T7750] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 281.669658][ T7748] BTRFS info (device loop4): rebuilding free space tree [ 281.678033][ T7749] BTRFS info (device loop3): disabling free space tree [ 281.684993][ T7749] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7746] close(3 [pid 7758] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7746] <... close resumed>) = 0 [ 281.752303][ T7748] BTRFS info (device loop4): disabling free space tree [ 281.763731][ T7749] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7746] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7744] <... futex resumed>) = 0 [pid 7744] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7746] creat("./bus", 000 [pid 7744] <... futex resumed>) = 0 [ 281.809698][ T7748] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7744] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 7744] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7744] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7744] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7744] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7807]}, 88) = 7807 ./strace-static-x86_64: Process 7807 attached [pid 7744] rt_sigprocmask(SIG_SETMASK, [], [pid 7807] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7744] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7744] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 281.864083][ T7748] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 281.884332][ T7750] BTRFS info (device loop1): rebuilding free space tree [pid 7807] <... rseq resumed>) = 0 [pid 7807] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7744] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7807] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7747] <... write resumed>) = 16776704 [pid 7747] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7747] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7807] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7807] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7807] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7744] <... futex resumed>) = 0 [pid 7744] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7807] <... futex resumed>) = 0 [pid 7744] <... futex resumed>) = 1 [pid 7807] memfd_create("syzkaller", 0 [pid 7744] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7807] <... memfd_create resumed>) = 4 [pid 7807] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 281.969078][ T7750] BTRFS info (device loop1): disabling free space tree [ 282.004100][ T7750] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 282.058039][ T7750] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7746] <... creat resumed>) = 3 [pid 7746] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 282.204545][ T7749] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 282.215354][ T7748] BTRFS info (device loop4): last unmount of filesystem c8ed1827-2c3f-43c2-a083-322fbee41ded [ 282.227029][ T7750] BTRFS info (device loop1): last unmount of filesystem d6defa02-6b99-4aca-81e2-ab6eff8da954 [pid 7746] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7758] <... write resumed>) = 16777216 [pid 7750] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7758] munmap(0x7ff7d3800000, 138412032 [pid 7750] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7750] ioctl(4, LOOP_CLR_FD) = 0 [pid 7750] close(4 [pid 7758] <... munmap resumed>) = 0 [pid 7758] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7749] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7748] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7758] <... openat resumed>) = 5 [pid 7749] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7758] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7758] ioctl(5, LOOP_CLR_FD) = 0 [pid 7748] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7748] ioctl(4, LOOP_CLR_FD) = 0 [pid 7748] close(4 [pid 7749] ioctl(4, LOOP_CLR_FD [pid 7758] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7749] <... ioctl resumed>) = 0 [pid 7758] close(5 [pid 7749] close(4 [pid 7758] <... close resumed>) = 0 [pid 7758] close(4 [pid 7807] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7749] <... close resumed>) = 0 [pid 7749] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7700] <... futex resumed>) = 0 [pid 7700] exit_group(0 [pid 7701] <... futex resumed>) = ? [pid 7700] <... exit_group resumed>) = ? [pid 7701] +++ exited with 0 +++ [pid 7750] <... close resumed>) = 0 [pid 7749] +++ exited with 0 +++ [pid 7700] +++ exited with 0 +++ [pid 7750] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7702] <... futex resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7700, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=101 /* 1.01 s */} --- [pid 7750] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7702] exit_group(0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 7750] <... futex resumed>) = ? [pid 7702] <... exit_group resumed>) = ? [pid 7750] +++ exited with 0 +++ [pid 7703] <... futex resumed>) = ? [pid 7703] +++ exited with 0 +++ [pid 7702] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7702, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=86 /* 0.86 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7808 [pid 5847] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 7808 attached [pid 7808] set_robust_list(0x5555693e0760, 24 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7808] <... set_robust_list resumed>) = 0 [pid 7808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... openat resumed>) = 3 [pid 7808] <... prctl resumed>) = 0 [pid 7808] setpgid(0, 0 [pid 7758] <... close resumed>) = 0 [pid 7758] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 7808] <... setpgid resumed>) = 0 [pid 7808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7758] <... futex resumed>) = 1 [pid 7748] <... close resumed>) = 0 [pid 7745] <... futex resumed>) = 0 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7758] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] close(3 [pid 7748] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7808] <... openat resumed>) = 3 [pid 7808] write(3, "1000", 4 [pid 7748] <... futex resumed>) = 1 [pid 7745] exit_group(0 [pid 7704] <... futex resumed>) = 0 [pid 7808] <... write resumed>) = 4 [pid 7758] <... futex resumed>) = ? [pid 7748] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7747] <... futex resumed>) = ? [pid 7745] <... exit_group resumed>) = ? [pid 7704] exit_group(0 [pid 5847] <... close resumed>) = 0 [pid 7808] close(3 [pid 7758] +++ exited with 0 +++ [pid 7748] <... futex resumed>) = ? [pid 7747] +++ exited with 0 +++ [pid 7705] <... futex resumed>) = ? [pid 7704] <... exit_group resumed>) = ? [pid 7808] <... close resumed>) = 0 [pid 7748] +++ exited with 0 +++ [pid 7705] +++ exited with 0 +++ [pid 7704] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7808] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 7809 attached ) = 18 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7704, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=91 /* 0.91 s */} --- [pid 7809] set_robust_list(0x5555693e0760, 24 [pid 7808] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 7809 [pid 7809] <... set_robust_list resumed>) = 0 [pid 7808] <... futex resumed>) = 0 [pid 7809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7808] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7809] <... prctl resumed>) = 0 [pid 7808] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7809] setpgid(0, 0 [pid 7808] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7809] <... setpgid resumed>) = 0 [pid 7808] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5850] <... openat resumed>) = 3 [pid 7808] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7808] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5850] ioctl(3, LOOP_CLR_FD [pid 7809] <... openat resumed>) = 3 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7809] write(3, "1000", 4 [pid 7808] <... mprotect resumed>) = 0 [pid 5850] close(3 [pid 7809] <... write resumed>) = 4 [pid 5850] <... close resumed>) = 0 [pid 7809] close(3 [pid 7808] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7810 attached [pid 7809] <... close resumed>) = 0 [pid 7808] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 7810 [pid 7810] set_robust_list(0x5555693e0760, 24) = 0 [pid 7810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7810] setpgid(0, 0 executing program [pid 7809] write(1, "executing program\n", 18 [pid 7808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7809] <... write resumed>) = 18 [pid 7810] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 7811 attached [pid 7808] <... clone3 resumed> => {parent_tid=[7811]}, 88) = 7811 [pid 7811] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7809] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7808] rt_sigprocmask(SIG_SETMASK, [], [pid 7810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7810] write(3, "1000", 4) = 4 [pid 7811] <... rseq resumed>) = 0 [pid 7809] <... futex resumed>) = 0 [pid 7808] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7745] +++ exited with 0 +++ [pid 7810] close(3executing program [pid 7811] set_robust_list(0x7ff7dbc929a0, 24 [pid 7810] <... close resumed>) = 0 [pid 7809] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7808] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7810] write(1, "executing program\n", 18) = 18 [pid 7810] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7745, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=94 /* 0.94 s */} --- [pid 7811] <... set_robust_list resumed>) = 0 [pid 7810] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7809] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7808] <... futex resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7811] rt_sigprocmask(SIG_SETMASK, [], [pid 7810] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7810] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7810] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7811] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7810] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5845] <... restart_syscall resumed>) = 0 [pid 7809] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7808] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7809] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7810] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7811] memfd_create("syzkaller", 0 [pid 7810] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7812 attached => {parent_tid=[7812]}, 88) = 7812 [pid 7810] rt_sigprocmask(SIG_SETMASK, [], [pid 7811] <... memfd_create resumed>) = 3 [pid 7810] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7809] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7812] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7810] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7812] <... rseq resumed>) = 0 [pid 7811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7810] <... futex resumed>) = 0 [pid 7809] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5845] <... openat resumed>) = 3 [pid 7812] set_robust_list(0x7ff7dbc929a0, 24 [pid 7810] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7812] <... set_robust_list resumed>) = 0 [pid 7812] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7812] memfd_create("syzkaller", 0) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 7812] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7811] <... mmap resumed>) = 0x7ff7d3800000 [pid 7809] <... mprotect resumed>) = 0 [pid 7812] <... mmap resumed>) = 0x7ff7d3800000 [pid 5845] <... ioctl resumed>) = 0 [pid 7809] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5845] close(3 [pid 7809] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5845] <... close resumed>) = 0 ./strace-static-x86_64: Process 7813 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7813] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7809] <... clone3 resumed> => {parent_tid=[7813]}, 88) = 7813 ./strace-static-x86_64: Process 7814 attached [pid 7813] <... rseq resumed>) = 0 [pid 7809] rt_sigprocmask(SIG_SETMASK, [], [pid 7814] set_robust_list(0x5555693e0760, 24 [pid 7813] set_robust_list(0x7ff7dbc929a0, 24 [pid 7809] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 7814 [pid 7813] <... set_robust_list resumed>) = 0 [pid 7809] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7814] <... set_robust_list resumed>) = 0 [pid 7813] rt_sigprocmask(SIG_SETMASK, [], [pid 7809] <... futex resumed>) = 0 [pid 7813] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7809] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7813] memfd_create("syzkaller", 0 [pid 7814] <... prctl resumed>) = 0 [pid 7814] setpgid(0, 0 [pid 7813] <... memfd_create resumed>) = 3 [pid 7814] <... setpgid resumed>) = 0 [pid 7814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7813] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7814] <... openat resumed>) = 3 [pid 7813] <... mmap resumed>) = 0x7ff7d3800000 [pid 7814] write(3, "1000", 4) = 4 [pid 7814] close(3executing program ) = 0 [pid 7814] write(1, "executing program\n", 18) = 18 [pid 7814] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7814] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7814] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7814] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7814] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7814] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7815 attached => {parent_tid=[7815]}, 88) = 7815 [pid 7814] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7814] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7814] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7815] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7815] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7815] memfd_create("syzkaller", 0) = 3 [pid 7815] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7807] <... write resumed>) = 16777216 [pid 7807] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7807] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 7807] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7807] close(4) = 0 [pid 7807] close(5) = 0 [pid 7807] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 282.962407][ T7807] loop0: detected capacity change from 0 to 32768 [ 282.998537][ T7807] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7807) [ 283.048018][ T7807] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7807] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 283.108942][ T7807] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 7812] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7811] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 283.247552][ T7807] BTRFS info (device loop0): rebuilding free space tree [ 283.309854][ T7807] BTRFS info (device loop0): disabling free space tree [ 283.316820][ T7807] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7813] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 283.375360][ T7807] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 283.468207][ T7807] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7815] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7807] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7807] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7807] ioctl(4, LOOP_CLR_FD) = 0 [pid 7807] close(4 [pid 7812] <... write resumed>) = 16777216 [pid 7812] munmap(0x7ff7d3800000, 138412032 [pid 7811] <... write resumed>) = 16777216 [pid 7811] munmap(0x7ff7d3800000, 138412032 [pid 7812] <... munmap resumed>) = 0 [pid 7811] <... munmap resumed>) = 0 [pid 7812] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7812] ioctl(4, LOOP_SET_FD, 3 [pid 7811] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7811] ioctl(4, LOOP_SET_FD, 3 [pid 7812] <... ioctl resumed>) = 0 [pid 7812] close(3) = 0 [pid 7812] close(4) = 0 [pid 7812] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7812] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7813] <... write resumed>) = 16777216 [pid 7811] <... ioctl resumed>) = 0 [pid 7813] munmap(0x7ff7d3800000, 138412032 [ 283.693258][ T7812] loop4: detected capacity change from 0 to 32768 [ 283.715642][ T7811] loop1: detected capacity change from 0 to 32768 [pid 7811] close(3) = 0 [pid 7811] close(4) = 0 [pid 7811] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7811] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7813] <... munmap resumed>) = 0 [pid 7813] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7813] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7815] <... write resumed>) = 16777216 [pid 7813] close(3 [pid 7815] munmap(0x7ff7d3800000, 138412032 [pid 7813] <... close resumed>) = 0 [pid 7813] close(4 [pid 7815] <... munmap resumed>) = 0 [pid 7813] <... close resumed>) = 0 [pid 7813] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7815] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7813] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7815] <... openat resumed>) = 4 [pid 7815] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7815] ioctl(4, LOOP_CLR_FD) = 0 [ 283.814586][ T7813] loop3: detected capacity change from 0 to 32768 [pid 7815] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7815] close(4) = 0 [ 283.861243][ T7812] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 283.871274][ T7812] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 283.925603][ T7811] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7815] close(3) = 0 [pid 7807] <... close resumed>) = 0 [pid 7815] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7807] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7807] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7815] <... futex resumed>) = 1 [pid 7814] <... futex resumed>) = 0 [pid 7744] <... futex resumed>) = 0 [pid 7744] exit_group(0) = ? [pid 7815] creat("./bus", 000 [pid 7814] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7807] <... futex resumed>) = ? [pid 7807] +++ exited with 0 +++ [pid 7815] <... creat resumed>) = 3 [pid 7814] <... futex resumed>) = 0 [pid 7746] <... futex resumed>) = ? [pid 7815] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7814] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7746] +++ exited with 0 +++ [pid 7744] +++ exited with 0 +++ [pid 7814] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7815] <... futex resumed>) = 0 [pid 7815] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7814] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7744, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=107 /* 1.07 s */} --- [pid 7814] <... futex resumed>) = 0 [pid 7815] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7815] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7814] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7853 attached , child_tidptr=0x5555693e0750) = 7853 [ 283.980950][ T7811] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 283.993109][ T7813] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 284.012042][ T7813] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7853] set_robust_list(0x5555693e0760, 24) = 0 [pid 7853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7853] setpgid(0, 0) = 0 [pid 7853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7853] write(3, "1000", 4) = 4 [pid 7853] close(3executing program ) = 0 [pid 7853] write(1, "executing program\n", 18) = 18 [pid 7853] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7853] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7853] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7853] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7853] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7853] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7854]}, 88) = 7854 [pid 7853] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7853] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7853] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7854 attached [pid 7814] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7814] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7854] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7814] <... futex resumed>) = 0 [pid 7814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7854] <... rseq resumed>) = 0 [pid 7814] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7854] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7854] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7814] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7854] memfd_create("syzkaller", 0) = 3 [pid 7814] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7814] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7814] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 7854] <... mmap resumed>) = 0x7ff7d3800000 [pid 7812] <... mount resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 7855 attached [pid 7855] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7812] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7855] set_robust_list(0x7ff7dbc719a0, 24 [pid 7814] <... clone3 resumed> => {parent_tid=[7855]}, 88) = 7855 [pid 7812] <... openat resumed>) = 3 [pid 7814] rt_sigprocmask(SIG_SETMASK, [], [pid 7855] <... set_robust_list resumed>) = 0 [pid 7855] rt_sigprocmask(SIG_SETMASK, [], [pid 7814] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7812] ioctl(3, LOOP_CLR_FD) = 0 [pid 7812] close(3 [pid 7855] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7814] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7855] memfd_create("syzkaller", 0 [pid 7814] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7855] <... memfd_create resumed>) = 4 [ 284.110711][ T7812] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7811] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7811] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 7811] ioctl(3, LOOP_CLR_FD) = 0 [ 284.190372][ T7811] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7811] close(3 [pid 7813] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7813] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 7813] ioctl(3, LOOP_CLR_FD) = 0 [ 284.258803][ T7813] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7813] close(3 [pid 7812] <... close resumed>) = 0 [pid 7812] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7811] <... close resumed>) = 0 [pid 7812] <... futex resumed>) = 1 [pid 7812] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7810] <... futex resumed>) = 0 [pid 7811] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7810] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7811] <... futex resumed>) = 1 [pid 7812] <... futex resumed>) = 0 [pid 7810] <... futex resumed>) = 1 [pid 7808] <... futex resumed>) = 0 [pid 7808] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7811] creat("./bus", 000 [pid 7808] <... futex resumed>) = 0 [pid 7808] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7810] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7812] creat("./bus", 000 [pid 7854] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7813] <... close resumed>) = 0 [pid 7810] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7808] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7810] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7808] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7810] <... futex resumed>) = 0 [pid 7808] <... futex resumed>) = 0 [pid 7810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7810] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7808] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7808] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7813] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7810] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7813] <... futex resumed>) = 1 [pid 7810] <... mprotect resumed>) = 0 [pid 7813] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7810] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7810] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7856 attached => {parent_tid=[7856]}, 88) = 7856 [pid 7856] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7810] rt_sigprocmask(SIG_SETMASK, [], [pid 7856] <... rseq resumed>) = 0 [pid 7810] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7810] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7810] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7809] <... futex resumed>) = 0 [pid 7856] set_robust_list(0x7ff7dbc719a0, 24 [pid 7809] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7808] <... mprotect resumed>) = 0 [pid 7856] <... set_robust_list resumed>) = 0 [pid 7813] <... futex resumed>) = 0 [pid 7809] <... futex resumed>) = 1 [pid 7808] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7856] rt_sigprocmask(SIG_SETMASK, [], [pid 7813] creat("./bus", 000 [pid 7809] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7856] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7808] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7856] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 7856] <... write resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 7857 attached [pid 7856] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7810] <... futex resumed>) = 0 [pid 7808] <... clone3 resumed> => {parent_tid=[7857]}, 88) = 7857 [pid 7808] rt_sigprocmask(SIG_SETMASK, [], [pid 7857] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7808] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7810] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7810] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7856] memfd_create("syzkaller", 0 [pid 7808] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7856] <... memfd_create resumed>) = 4 [pid 7857] <... rseq resumed>) = 0 [pid 7808] <... futex resumed>) = 0 [pid 7857] set_robust_list(0x7ff7dbc719a0, 24 [pid 7808] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7857] <... set_robust_list resumed>) = 0 [pid 7857] rt_sigprocmask(SIG_SETMASK, [], [pid 7856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7857] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7857] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7857] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7808] <... futex resumed>) = 0 [pid 7855] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7857] memfd_create("syzkaller", 0 [pid 7808] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7857] <... memfd_create resumed>) = 4 [pid 7809] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7808] <... futex resumed>) = 0 [pid 7857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7809] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7808] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7809] <... futex resumed>) = 0 [pid 7857] <... mmap resumed>) = 0x7ff7d3800000 [pid 7809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7809] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7809] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7809] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7858]}, 88) = 7858 [pid 7809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7809] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 7858 attached ) = 0 [pid 7809] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7858] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7858] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7858] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7858] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7809] <... futex resumed>) = 0 [pid 7858] memfd_create("syzkaller", 0 [pid 7809] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7809] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7858] <... memfd_create resumed>) = 4 [pid 7858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7854] <... write resumed>) = 16777216 [pid 7815] <... write resumed>) = 16776704 [pid 7854] munmap(0x7ff7d3800000, 138412032 [pid 7815] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7815] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7857] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7855] <... write resumed>) = 16777216 [pid 7855] munmap(0x7ff7d3800000, 138412032 [pid 7856] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7854] <... munmap resumed>) = 0 [pid 7854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7854] ioctl(4, LOOP_SET_FD, 3 [pid 7855] <... munmap resumed>) = 0 [pid 7855] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7858] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7854] <... ioctl resumed>) = 0 [pid 7854] close(3) = 0 [pid 7854] close(4 [pid 7855] ioctl(5, LOOP_SET_FD, 4 [pid 7854] <... close resumed>) = 0 [pid 7854] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7855] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 7854] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7855] ioctl(5, LOOP_CLR_FD) = 0 [ 285.128909][ T7854] loop0: detected capacity change from 0 to 32768 [pid 7855] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7855] close(5) = 0 [pid 7855] close(4) = 0 [pid 7855] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7814] <... futex resumed>) = 0 [pid 7855] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7814] exit_group(0 [pid 7855] <... futex resumed>) = ? [pid 7815] <... futex resumed>) = ? [pid 7814] <... exit_group resumed>) = ? [pid 7855] +++ exited with 0 +++ [pid 7815] +++ exited with 0 +++ [pid 7814] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7814, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=105 /* 1.05 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7866 ./strace-static-x86_64: Process 7866 attached [pid 7866] set_robust_list(0x5555693e0760, 24) = 0 [ 285.309729][ T7854] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7866] setpgid(0, 0) = 0 [pid 7866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7866] write(3, "1000", 4) = 4 [pid 7866] close(3) = 0 executing program [pid 7866] write(1, "executing program\n", 18) = 18 [ 285.368251][ T7854] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7866] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7866] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7866] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7867 attached [pid 7867] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7866] <... clone3 resumed> => {parent_tid=[7867]}, 88) = 7867 [pid 7867] <... rseq resumed>) = 0 [pid 7866] rt_sigprocmask(SIG_SETMASK, [], [pid 7867] set_robust_list(0x7ff7dbc929a0, 24 [pid 7866] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7867] <... set_robust_list resumed>) = 0 [pid 7866] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7813] <... creat resumed>) = 3 [pid 7812] <... creat resumed>) = 3 [pid 7867] rt_sigprocmask(SIG_SETMASK, [], [pid 7866] <... futex resumed>) = 0 [pid 7813] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7812] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7867] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7866] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7813] <... futex resumed>) = 0 [pid 7812] <... futex resumed>) = 0 [pid 7867] memfd_create("syzkaller", 0 [pid 7813] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7812] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7867] <... memfd_create resumed>) = 3 [pid 7811] <... creat resumed>) = 3 [pid 7867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7811] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7811] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7854] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7854] ioctl(3, LOOP_CLR_FD) = 0 [ 285.610406][ T7854] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7854] close(3 [pid 7857] <... write resumed>) = 16777216 [pid 7857] munmap(0x7ff7d3800000, 138412032 [pid 7856] <... write resumed>) = 16777216 [pid 7857] <... munmap resumed>) = 0 [pid 7857] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 7857] ioctl(5, LOOP_SET_FD, 4 [pid 7856] munmap(0x7ff7d3800000, 138412032 [pid 7858] <... write resumed>) = 16777216 [pid 7857] <... ioctl resumed>) = 0 [pid 7857] close(4) = 0 [pid 7857] close(5) = 0 [pid 7857] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7858] munmap(0x7ff7d3800000, 138412032 [pid 7857] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7856] <... munmap resumed>) = 0 [ 285.705690][ T7857] loop1: detected capacity change from 0 to 32768 [pid 7856] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7858] <... munmap resumed>) = 0 [pid 7856] ioctl(5, LOOP_SET_FD, 4 [pid 7858] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 285.746982][ T7857] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7857) [ 285.776248][ T7856] loop4: detected capacity change from 0 to 32768 [ 285.789370][ T7858] loop3: detected capacity change from 0 to 32768 [pid 7858] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7856] <... ioctl resumed>) = 0 [pid 7856] close(4) = 0 [pid 7856] close(5) = 0 [pid 7856] mkdir("./bus", 0777 [pid 7858] close(4 [pid 7856] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7858] <... close resumed>) = 0 [pid 7856] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7858] close(5) = 0 [pid 7858] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 285.801281][ T7857] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 285.825644][ T7856] BTRFS: device /dev/loop4 (7:4) using temp-fsid 9eb38777-9144-4840-a25b-1e23f794c9f1 [ 285.841995][ T7857] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 7858] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7854] <... close resumed>) = 0 [pid 7854] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7853] <... futex resumed>) = 0 [pid 7853] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 285.856119][ T7856] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7856) [pid 7853] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7854] creat("./bus", 000) = 3 [pid 7854] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7853] <... futex resumed>) = 0 [pid 7853] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7853] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7854] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7853] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7853] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7853] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [ 285.915571][ T7858] BTRFS: device /dev/loop3 (7:3) using temp-fsid 01096f98-97cb-4e67-a633-06f44663fd9f [ 285.939368][ T7858] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7858) [ 285.948023][ T7856] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7853] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7853] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7881 attached [pid 7881] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7853] <... clone3 resumed> => {parent_tid=[7881]}, 88) = 7881 [pid 7881] <... rseq resumed>) = 0 [pid 7853] rt_sigprocmask(SIG_SETMASK, [], [pid 7881] set_robust_list(0x7ff7dbc719a0, 24 [pid 7853] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7881] <... set_robust_list resumed>) = 0 [pid 7881] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7881] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7853] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7881] <... futex resumed>) = 0 [pid 7853] <... futex resumed>) = 1 [pid 7881] memfd_create("syzkaller", 0 [pid 7853] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7881] <... memfd_create resumed>) = 4 [pid 7881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 285.987934][ T7856] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 286.001992][ T7858] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 286.049631][ T7857] BTRFS info (device loop1): rebuilding free space tree [ 286.078131][ T7858] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 286.120863][ T7857] BTRFS info (device loop1): disabling free space tree [ 286.152363][ T7857] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 286.162931][ T7857] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 286.180408][ T7856] BTRFS info (device loop4): rebuilding free space tree [ 286.278577][ T7858] BTRFS info (device loop3): rebuilding free space tree [ 286.304028][ T7858] BTRFS info (device loop3): disabling free space tree [ 286.307861][ T7856] BTRFS info (device loop4): disabling free space tree [ 286.317810][ T7858] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 286.317842][ T7858] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7867] <... write resumed>) = 16777216 [ 286.438299][ T7856] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 286.468034][ T7856] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7867] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7867] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7867] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7867] ioctl(4, LOOP_CLR_FD) = 0 [pid 7867] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7867] close(4) = 0 [pid 7867] close(3 [pid 7881] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7867] <... close resumed>) = 0 [pid 7867] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7866] <... futex resumed>) = 0 [pid 7867] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7866] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7867] <... futex resumed>) = 0 [pid 7866] <... futex resumed>) = 1 [pid 7867] creat("./bus", 000 [pid 7866] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7881] <... write resumed>) = 16777216 [pid 7881] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7881] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7866] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7881] <... openat resumed>) = 5 [pid 7866] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7881] ioctl(5, LOOP_SET_FD, 4 [pid 7866] <... futex resumed>) = 0 [pid 7866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7866] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7917 attached => {parent_tid=[7917]}, 88) = 7917 [pid 7866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7866] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7866] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7881] <... ioctl resumed>) = 0 [pid 7917] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7854] <... write resumed>) = 16776704 [pid 7854] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7917] <... rseq resumed>) = 0 [pid 7881] close(4 [pid 7917] set_robust_list(0x7ff7dbc719a0, 24 [pid 7881] <... close resumed>) = 0 [pid 7917] <... set_robust_list resumed>) = 0 [ 286.781499][ T7881] loop0: detected capacity change from 0 to 32768 [ 286.799671][ T7857] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 286.808289][ T7856] BTRFS info (device loop4): last unmount of filesystem 9eb38777-9144-4840-a25b-1e23f794c9f1 [ 286.820915][ T7858] BTRFS info (device loop3): last unmount of filesystem 01096f98-97cb-4e67-a633-06f44663fd9f [pid 7881] close(5 [pid 7917] rt_sigprocmask(SIG_SETMASK, [], [pid 7881] <... close resumed>) = 0 [pid 7917] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7881] mkdir("./bus", 0777 [pid 7917] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7881] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7917] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7881] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7917] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7854] <... futex resumed>) = 0 [pid 7917] <... futex resumed>) = 1 [pid 7854] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7917] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7866] <... futex resumed>) = 0 [pid 7866] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7917] <... futex resumed>) = 0 [pid 7866] <... futex resumed>) = 1 [pid 7917] memfd_create("syzkaller", 0 [pid 7866] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7917] <... memfd_create resumed>) = 4 [pid 7917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 286.827920][ T7881] BTRFS: device /dev/loop0 (7:0) using temp-fsid d9234a9c-c312-4238-a2fe-1aa3dbac12ec [ 286.863418][ T7881] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7881) [pid 7856] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7858] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7856] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7858] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7856] <... openat resumed>) = 4 [pid 7858] <... openat resumed>) = 4 [pid 7856] ioctl(4, LOOP_CLR_FD [pid 7858] ioctl(4, LOOP_CLR_FD [pid 7856] <... ioctl resumed>) = 0 [pid 7858] <... ioctl resumed>) = 0 [ 286.955765][ T7881] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7856] close(4 [ 286.997885][ T7881] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 7858] close(4 [pid 7857] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7857] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7857] ioctl(4, LOOP_CLR_FD) = 0 [pid 7857] close(4 [pid 7867] <... creat resumed>) = 3 [pid 7867] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7917] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7867] <... futex resumed>) = 0 [ 287.254287][ T7881] BTRFS info (device loop0): rebuilding free space tree [pid 7867] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7858] <... close resumed>) = 0 [pid 7858] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7858] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7809] <... futex resumed>) = 0 [pid 7809] exit_group(0 [pid 7858] <... futex resumed>) = ? [pid 7813] <... futex resumed>) = ? [pid 7809] <... exit_group resumed>) = ? [pid 7858] +++ exited with 0 +++ [pid 7813] +++ exited with 0 +++ [pid 7809] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7809, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=82 /* 0.82 s */} --- [ 287.320098][ T7881] BTRFS info (device loop0): disabling free space tree [ 287.357935][ T7881] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 7934 ./strace-static-x86_64: Process 7934 attached [pid 7934] set_robust_list(0x5555693e0760, 24) = 0 [ 287.398592][ T7881] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7856] <... close resumed>) = 0 [pid 7934] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7856] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7934] <... prctl resumed>) = 0 [pid 7856] <... futex resumed>) = 1 [pid 7810] <... futex resumed>) = 0 [pid 7934] setpgid(0, 0 [pid 7856] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7810] exit_group(0 [pid 7934] <... setpgid resumed>) = 0 [pid 7856] <... futex resumed>) = ? [pid 7812] <... futex resumed>) = ? [pid 7810] <... exit_group resumed>) = ? [pid 7856] +++ exited with 0 +++ [pid 7812] +++ exited with 0 +++ [pid 7934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7810] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7810, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=87 /* 0.87 s */} --- [pid 7934] <... openat resumed>) = 3 [pid 7857] <... close resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 7934] write(3, "1000", 4 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 7857] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7934] <... write resumed>) = 4 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7934] close(3 [pid 5850] close(3 [pid 7934] <... close resumed>) = 0 [pid 5850] <... close resumed>) = 0 [pid 7934] write(1, "executing program\n", 18 [pid 7857] <... futex resumed>) = 1 [pid 7808] <... futex resumed>) = 0 [pid 7808] exit_group(0 executing program [pid 7811] <... futex resumed>) = ? [ 287.453054][ T7881] BTRFS info (device loop0): last unmount of filesystem d9234a9c-c312-4238-a2fe-1aa3dbac12ec [pid 7808] <... exit_group resumed>) = ? [pid 7934] <... write resumed>) = 18 [pid 7857] +++ exited with 0 +++ [pid 7811] +++ exited with 0 +++ [pid 7808] +++ exited with 0 +++ [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7934] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7808, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=99 /* 0.99 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 7935 attached [pid 7934] <... futex resumed>) = 0 [pid 5844] <... openat resumed>) = 3 [pid 7935] set_robust_list(0x5555693e0760, 24 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 7935] <... set_robust_list resumed>) = 0 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7935] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] close(3 [pid 7935] <... prctl resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 7935] setpgid(0, 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7936 attached [pid 7935] <... setpgid resumed>) = 0 [pid 7934] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 7935 [pid 7936] set_robust_list(0x5555693e0760, 24 [pid 7935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7934] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 7936 [pid 7936] <... set_robust_list resumed>) = 0 [pid 7934] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7936] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7934] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7934] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7936] <... prctl resumed>) = 0 [pid 7935] <... openat resumed>) = 3 [pid 7934] <... mprotect resumed>) = 0 [pid 7936] setpgid(0, 0) = 0 executing program executing program [pid 7936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7935] write(3, "1000", 4) = 4 [pid 7935] close(3) = 0 [pid 7934] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7936] <... openat resumed>) = 3 [pid 7935] write(1, "executing program\n", 18 [pid 7934] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 7935] <... write resumed>) = 18 [pid 7935] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7935] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7935] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7935] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7936] write(3, "1000", 4 [pid 7935] <... mprotect resumed>) = 0 [pid 7936] <... write resumed>) = 4 [pid 7935] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7936] close(3 [pid 7935] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7936] <... close resumed>) = 0 [pid 7935] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7937 attached [pid 7936] write(1, "executing program\n", 18) = 18 [pid 7935] <... clone3 resumed> => {parent_tid=[7937]}, 88) = 7937 [pid 7936] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7935] rt_sigprocmask(SIG_SETMASK, [], [pid 7936] <... futex resumed>) = 0 [pid 7935] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7936] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 7935] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7937] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7936] <... rt_sigaction resumed>NULL, 8) = 0 [pid 7935] <... futex resumed>) = 0 [pid 7937] <... rseq resumed>) = 0 [pid 7936] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 7935] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7937] set_robust_list(0x7ff7dbc929a0, 24 [pid 7936] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7937] <... set_robust_list resumed>) = 0 [pid 7936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7937] rt_sigprocmask(SIG_SETMASK, [], [pid 7936] <... mmap resumed>) = 0x7ff7dbc72000 [pid 7937] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7936] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 7937] memfd_create("syzkaller", 0 [pid 7936] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 7938 attached [pid 7937] <... memfd_create resumed>) = 3 [pid 7934] <... clone3 resumed> => {parent_tid=[7938]}, 88) = 7938 [pid 7938] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7936] rt_sigprocmask(SIG_BLOCK, ~[], [pid 7934] rt_sigprocmask(SIG_SETMASK, [], [pid 7938] <... rseq resumed>) = 0 [pid 7934] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7938] set_robust_list(0x7ff7dbc929a0, 24 [pid 7934] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7938] <... set_robust_list resumed>) = 0 [pid 7934] <... futex resumed>) = 0 [pid 7938] rt_sigprocmask(SIG_SETMASK, [], [pid 7934] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7938] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7938] memfd_create("syzkaller", 0 [pid 7937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7936] <... rt_sigprocmask resumed>[], 8) = 0 [pid 7937] <... mmap resumed>) = 0x7ff7d3800000 [pid 7936] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 7939 attached [pid 7938] <... memfd_create resumed>) = 3 [pid 7938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7939] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 7938] <... mmap resumed>) = 0x7ff7d3800000 [pid 7936] <... clone3 resumed> => {parent_tid=[7939]}, 88) = 7939 [pid 7939] <... rseq resumed>) = 0 [pid 7936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7936] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7939] set_robust_list(0x7ff7dbc929a0, 24 [pid 7936] <... futex resumed>) = 0 [pid 7939] <... set_robust_list resumed>) = 0 [pid 7936] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7939] memfd_create("syzkaller", 0) = 3 [pid 7939] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7881] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7881] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7881] ioctl(4, LOOP_CLR_FD) = 0 [pid 7881] close(4) = 0 [pid 7881] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7853] <... futex resumed>) = 0 [pid 7881] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7853] exit_group(0 [pid 7881] <... futex resumed>) = ? [pid 7854] <... futex resumed>) = ? [pid 7853] <... exit_group resumed>) = ? [pid 7854] +++ exited with 0 +++ [pid 7881] +++ exited with 0 +++ [pid 7853] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7853, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=111 /* 1.11 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 7917] <... write resumed>) = 16777216 [pid 5843] <... restart_syscall resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7940 attached executing program , child_tidptr=0x5555693e0750) = 7940 [pid 7940] set_robust_list(0x5555693e0760, 24 [pid 7917] munmap(0x7ff7d3800000, 138412032 [pid 7940] <... set_robust_list resumed>) = 0 [pid 7940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7940] setpgid(0, 0) = 0 [pid 7940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7940] write(3, "1000", 4) = 4 [pid 7940] close(3) = 0 [pid 7940] write(1, "executing program\n", 18) = 18 [pid 7940] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7940] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7940] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7940] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7940] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7941]}, 88) = 7941 [pid 7940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7940] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7940] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 7941 attached [pid 7941] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7941] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 7941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7941] memfd_create("syzkaller", 0 [pid 7917] <... munmap resumed>) = 0 [pid 7941] <... memfd_create resumed>) = 3 [pid 7941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7917] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7917] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7917] ioctl(5, LOOP_CLR_FD) = 0 [pid 7917] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7917] close(5) = 0 [pid 7917] close(4 [pid 7937] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7917] <... close resumed>) = 0 [pid 7938] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7917] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7866] <... futex resumed>) = 0 [pid 7917] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7866] exit_group(0 [pid 7917] <... futex resumed>) = ? [pid 7867] <... futex resumed>) = ? [pid 7866] <... exit_group resumed>) = ? [pid 7867] +++ exited with 0 +++ [pid 7917] +++ exited with 0 +++ [pid 7866] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7866, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=85 /* 0.85 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3 [pid 7939] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5845] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7942 attached [pid 7942] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 7942 [pid 7942] <... set_robust_list resumed>) = 0 [pid 7942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7942] setpgid(0, 0) = 0 [pid 7942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7942] write(3, "1000", 4) = 4 [pid 7942] close(3) = 0 [pid 7942] write(1, "executing program\n", 18executing program ) = 18 [pid 7942] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7942] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 7942] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 7942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 7942] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7942] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[7943]}, 88) = 7943 ./strace-static-x86_64: Process 7943 attached [pid 7942] rt_sigprocmask(SIG_SETMASK, [], [pid 7943] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 7942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 7943] set_robust_list(0x7ff7dbc929a0, 24 [pid 7942] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7942] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7943] <... set_robust_list resumed>) = 0 [pid 7943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7943] memfd_create("syzkaller", 0) = 3 [pid 7943] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7941] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7937] <... write resumed>) = 16777216 [pid 7937] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7937] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7937] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7937] close(3) = 0 [pid 7937] close(4) = 0 [pid 7937] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 288.496621][ T7937] loop4: detected capacity change from 0 to 32768 [pid 7937] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7938] <... write resumed>) = 16777216 [pid 7938] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7939] <... write resumed>) = 16777216 [pid 7938] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7939] munmap(0x7ff7d3800000, 138412032 [pid 7938] <... openat resumed>) = 4 [pid 7938] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7939] <... munmap resumed>) = 0 [pid 7938] close(3 [pid 7939] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7938] <... close resumed>) = 0 [pid 7939] <... openat resumed>) = 4 [pid 7938] close(4 [pid 7939] ioctl(4, LOOP_SET_FD, 3 [pid 7938] <... close resumed>) = 0 [pid 7941] <... write resumed>) = 16777216 [pid 7941] munmap(0x7ff7d3800000, 138412032 [ 288.619236][ T7938] loop3: detected capacity change from 0 to 32768 [ 288.625768][ T7937] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 288.648029][ T7939] loop1: detected capacity change from 0 to 32768 [ 288.652127][ T7937] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7938] mkdir("./file1", 0777 [pid 7941] <... munmap resumed>) = 0 [pid 7943] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7939] <... ioctl resumed>) = 0 [pid 7938] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 7941] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7941] ioctl(4, LOOP_SET_FD, 3 [pid 7938] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7941] <... ioctl resumed>) = 0 [pid 7939] close(3) = 0 [pid 7941] close(3 [pid 7939] close(4 [pid 7941] <... close resumed>) = 0 [pid 7941] close(4 [pid 7939] <... close resumed>) = 0 [pid 7941] <... close resumed>) = 0 [pid 7941] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 7941] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7939] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 288.675133][ T7941] loop0: detected capacity change from 0 to 32768 [ 288.795575][ T7938] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 288.807320][ T7938] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7939] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 7937] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7937] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 7937] ioctl(3, LOOP_CLR_FD) = 0 [ 288.840555][ T7937] bcachefs: bch2_fs_get_tree() error: EINVAL [ 288.846594][ T7939] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7937] close(3 [pid 7943] <... write resumed>) = 16777216 [ 288.909197][ T7939] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 288.929876][ T7941] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 7943] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7943] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7943] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7943] ioctl(4, LOOP_CLR_FD) = 0 [pid 7943] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 7943] close(4) = 0 [ 288.960942][ T7941] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 7943] close(3 [pid 7937] <... close resumed>) = 0 [pid 7937] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7935] <... futex resumed>) = 0 [pid 7937] creat("./bus", 000 [pid 7935] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7937] <... creat resumed>) = 3 [pid 7935] <... futex resumed>) = 0 [pid 7935] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7937] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7935] <... futex resumed>) = 0 [pid 7935] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7937] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7935] <... futex resumed>) = 0 [pid 7935] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7938] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7938] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 7938] ioctl(3, LOOP_CLR_FD) = 0 [ 289.069472][ T7938] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7938] close(3 [pid 7935] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7935] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7935] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7935] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7935] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7972 attached [pid 7972] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7935] <... clone3 resumed> => {parent_tid=[7972]}, 88) = 7972 [pid 7935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7935] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7935] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7972] <... rseq resumed>) = 0 [pid 7972] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7972] memfd_create("syzkaller", 0 [pid 7939] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7972] <... memfd_create resumed>) = 4 [pid 7941] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 7972] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7941] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 7941] ioctl(3, LOOP_CLR_FD [pid 7939] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7941] <... ioctl resumed>) = 0 [pid 7939] <... openat resumed>) = 3 [pid 7939] ioctl(3, LOOP_CLR_FD) = 0 [ 289.177972][ T7941] bcachefs: bch2_fs_get_tree() error: EINVAL [ 289.198471][ T7939] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 7939] close(3 [pid 7941] close(3 [pid 7943] <... close resumed>) = 0 [pid 7943] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7943] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7942] <... futex resumed>) = 0 [pid 7942] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7943] <... futex resumed>) = 0 [pid 7943] creat("./bus", 000 [pid 7942] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7938] <... close resumed>) = 0 [pid 7938] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7938] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7934] <... futex resumed>) = 0 [pid 7934] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 7938] <... futex resumed>) = 0 [pid 7934] <... futex resumed>) = 1 [pid 7938] creat("./bus", 000 [pid 7934] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7942] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7942] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7942] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7942] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7973]}, 88) = 7973 [pid 7942] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 7973 attached NULL, 8) = 0 [pid 7942] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7942] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7973] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7973] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7973] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7973] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7942] <... futex resumed>) = 0 [pid 7942] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7942] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7973] memfd_create("syzkaller", 0) = 4 [pid 7973] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7934] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7934] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7934] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7934] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7934] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 7974 attached => {parent_tid=[7974]}, 88) = 7974 [pid 7934] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7934] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7974] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7934] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7974] <... rseq resumed>) = 0 [pid 7974] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 7974] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7974] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7974] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7934] <... futex resumed>) = 0 [pid 7974] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7934] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7974] <... futex resumed>) = 0 [pid 7934] <... futex resumed>) = 1 [pid 7974] memfd_create("syzkaller", 0 [pid 7934] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7974] <... memfd_create resumed>) = 4 [pid 7974] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7939] <... close resumed>) = 0 [pid 7941] <... close resumed>) = 0 [pid 7939] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7936] <... futex resumed>) = 0 [pid 7936] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7936] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7939] creat("./bus", 000 [pid 7941] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7940] <... futex resumed>) = 0 [pid 7940] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7941] creat("./bus", 000 [pid 7940] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7936] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7936] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 7936] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 7936] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7936] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[7975]}, 88) = 7975 [pid 7936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7936] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7936] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 7975 attached [pid 7975] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 7975] set_robust_list(0x7ff7dbc719a0, 24 [pid 7940] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 7940] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 7972] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7940] <... mmap resumed>) = 0x7ff7dbc51000 [pid 7975] <... set_robust_list resumed>) = 0 [pid 7940] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 7975] rt_sigprocmask(SIG_SETMASK, [], [pid 7940] <... mprotect resumed>) = 0 [pid 7940] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 7940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 7975] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 7976 attached [pid 7976] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 7975] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 7940] <... clone3 resumed> => {parent_tid=[7976]}, 88) = 7976 [pid 7976] <... rseq resumed>) = 0 [pid 7940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7940] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7940] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 7976] set_robust_list(0x7ff7dbc719a0, 24 [pid 7975] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 7976] <... set_robust_list resumed>) = 0 [pid 7976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 7976] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 7976] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7975] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7940] <... futex resumed>) = 0 [pid 7975] <... futex resumed>) = 1 [pid 7976] memfd_create("syzkaller", 0 [pid 7975] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7940] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7936] <... futex resumed>) = 0 [pid 7975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 7940] <... futex resumed>) = 0 [pid 7936] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 7940] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7975] memfd_create("syzkaller", 0 [pid 7936] <... futex resumed>) = 0 [pid 7975] <... memfd_create resumed>) = 4 [pid 7936] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 7976] <... memfd_create resumed>) = 4 [pid 7976] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7973] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7974] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7937] <... write resumed>) = 16776704 [pid 7972] <... write resumed>) = 16777216 [pid 7937] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7937] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7972] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7972] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 7972] ioctl(5, LOOP_SET_FD, 4 [pid 7976] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7972] <... ioctl resumed>) = 0 [pid 7972] close(4) = 0 [pid 7972] close(5) = 0 [pid 7972] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7972] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 290.132996][ T7972] loop4: detected capacity change from 0 to 32768 [ 290.157837][ T7972] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (7972) [ 290.234104][ T7972] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 290.267127][ T7972] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 7975] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7938] <... creat resumed>) = 3 [pid 7943] <... creat resumed>) = 3 [pid 7941] <... creat resumed>) = 3 [pid 7939] <... creat resumed>) = 3 [pid 7939] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 7938] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7943] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7941] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7939] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7938] <... futex resumed>) = 0 [pid 7943] <... futex resumed>) = 0 [pid 7943] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7938] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7941] <... futex resumed>) = 0 [pid 7941] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7974] <... write resumed>) = 16777216 [pid 7974] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7974] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 7974] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7974] close(4) = 0 [pid 7974] close(5) = 0 [pid 7974] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 290.459136][ T7972] BTRFS info (device loop4): rebuilding free space tree [ 290.494080][ T7974] loop3: detected capacity change from 0 to 32768 [ 290.494798][ T7972] BTRFS info (device loop4): disabling free space tree [pid 7974] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7973] <... write resumed>) = 16777216 [ 290.521354][ T7974] BTRFS: device /dev/loop3 (7:3) using temp-fsid fca2a1bf-1ef4-4aee-a761-4417eb9e762c [ 290.531728][ T7972] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7973] munmap(0x7ff7d3800000, 138412032) = 0 [ 290.558957][ T7974] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (7974) [ 290.567738][ T7972] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7973] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 7973] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7973] ioctl(5, LOOP_CLR_FD) = 0 [pid 7973] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 7973] close(5) = 0 [ 290.612858][ T7974] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 290.635785][ T7972] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 290.637304][ T7974] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 7973] close(4 [pid 7975] <... write resumed>) = 16777216 [pid 7975] munmap(0x7ff7d3800000, 138412032 [pid 7972] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7972] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7972] ioctl(4, LOOP_CLR_FD) = 0 [pid 7972] close(4 [pid 7976] <... write resumed>) = 16777216 [pid 7976] munmap(0x7ff7d3800000, 138412032) = 0 [pid 7976] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7975] <... munmap resumed>) = 0 [pid 7976] <... openat resumed>) = 5 [pid 7975] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7976] ioctl(5, LOOP_SET_FD, 4 [pid 7975] <... openat resumed>) = 5 [pid 7975] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 7976] <... ioctl resumed>) = 0 [pid 7976] close(4 [pid 7975] close(4) = 0 [pid 7976] <... close resumed>) = 0 [pid 7976] close(5 [pid 7975] close(5 [pid 7976] <... close resumed>) = 0 [pid 7975] <... close resumed>) = 0 [pid 7976] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 7975] mkdir("./bus", 0777 [ 290.810724][ T7976] loop0: detected capacity change from 0 to 32768 [ 290.828889][ T7975] loop1: detected capacity change from 0 to 32768 [pid 7976] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7975] <... mkdir resumed>) = -1 EEXIST (File exists) [ 290.857592][ T7976] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (7976) [ 290.920191][ T7975] BTRFS: device /dev/loop1 (7:1) using temp-fsid 18c25181-bf0f-4930-a976-2221fdb48f55 [ 290.948377][ T7976] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 7975] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 7972] <... close resumed>) = 0 [pid 7972] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7935] <... futex resumed>) = 0 [pid 7935] exit_group(0 [pid 7937] <... futex resumed>) = ? [pid 7935] <... exit_group resumed>) = ? [pid 7937] +++ exited with 0 +++ [pid 7972] +++ exited with 0 +++ [pid 7935] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7935, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=112 /* 1.12 s */} --- [ 290.978152][ T7975] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (7975) [ 291.007501][ T7976] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 7973] <... close resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 7973] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7973] <... futex resumed>) = 1 [pid 5850] close(3 [pid 7973] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] <... close resumed>) = 0 [pid 7942] <... futex resumed>) = 0 [pid 7942] exit_group(0 [pid 7973] <... futex resumed>) = ? [pid 7942] <... exit_group resumed>) = ? [pid 7943] <... futex resumed>) = ? [pid 7973] +++ exited with 0 +++ [pid 7943] +++ exited with 0 +++ [pid 7942] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7942, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=87 /* 0.87 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8019 attached , child_tidptr=0x5555693e0750) = 8019 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8019] set_robust_list(0x5555693e0760, 24) = 0 [pid 5845] <... openat resumed>) = 3 [pid 8019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] ioctl(3, LOOP_CLR_FD [pid 8019] <... prctl resumed>) = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 5845] close(3 [pid 8019] setpgid(0, 0) = 0 [pid 5845] <... close resumed>) = 0 [pid 8019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8024 attached [pid 8019] <... openat resumed>) = 3 [ 291.063175][ T7975] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 291.076622][ T7974] BTRFS info (device loop3): rebuilding free space tree [ 291.097440][ T7975] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 8024] set_robust_list(0x5555693e0760, 24 [pid 8019] write(3, "1000", 4 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8024 [pid 8024] <... set_robust_list resumed>) = 0 [pid 8019] <... write resumed>) = 4 [pid 8024] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8019] close(3executing program [pid 8024] <... prctl resumed>) = 0 [pid 8019] <... close resumed>) = 0 [pid 8019] write(1, "executing program\n", 18 [pid 8024] setpgid(0, 0) = 0 [pid 8024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8019] <... write resumed>) = 18 [pid 8024] <... openat resumed>) = 3 [pid 8019] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8024] write(3, "1000", 4 [pid 8019] <... futex resumed>) = 0 [pid 8024] <... write resumed>) = 4 [pid 8019] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8024] close(3 [pid 8019] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8024] <... close resumed>) = 0 [pid 8019] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8024] write(1, "executing program\n", 18) = 18 executing program [pid 8024] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8019] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8024] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [ 291.140996][ T7974] BTRFS info (device loop3): disabling free space tree [ 291.159907][ T7974] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 291.179475][ T7974] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8024] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8019] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8019] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8019] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8024] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8024] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8019] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8019] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8024] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8019] <... clone3 resumed> => {parent_tid=[8029]}, 88) = 8029 [pid 8019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8019] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8019] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8030 attached ./strace-static-x86_64: Process 8029 attached [pid 8024] <... clone3 resumed> => {parent_tid=[8030]}, 88) = 8030 [pid 8030] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8024] rt_sigprocmask(SIG_SETMASK, [], [pid 8030] <... rseq resumed>) = 0 [pid 8024] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8030] set_robust_list(0x7ff7dbc929a0, 24 [pid 8029] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8024] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8030] <... set_robust_list resumed>) = 0 [pid 8029] <... rseq resumed>) = 0 [pid 8024] <... futex resumed>) = 0 [pid 8030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8029] set_robust_list(0x7ff7dbc929a0, 24 [pid 8024] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8030] memfd_create("syzkaller", 0 [pid 8029] <... set_robust_list resumed>) = 0 [pid 8029] rt_sigprocmask(SIG_SETMASK, [], [pid 8030] <... memfd_create resumed>) = 3 [pid 8029] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8029] memfd_create("syzkaller", 0 [pid 8030] <... mmap resumed>) = 0x7ff7d3800000 [pid 8029] <... memfd_create resumed>) = 3 [pid 8029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 291.201661][ T7974] BTRFS info (device loop3): last unmount of filesystem fca2a1bf-1ef4-4aee-a761-4417eb9e762c [ 291.228414][ T7976] BTRFS info (device loop0): rebuilding free space tree [ 291.316050][ T7976] BTRFS info (device loop0): disabling free space tree [ 291.327923][ T7975] BTRFS info (device loop1): rebuilding free space tree [ 291.347883][ T7976] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 291.357592][ T7976] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 7974] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7974] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7974] ioctl(4, LOOP_CLR_FD) = 0 [ 291.422419][ T7975] BTRFS info (device loop1): disabling free space tree [ 291.454067][ T7975] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 7974] close(4 [ 291.497762][ T7975] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 291.573648][ T7976] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 291.613671][ T7975] BTRFS info (device loop1): last unmount of filesystem 18c25181-bf0f-4930-a976-2221fdb48f55 [pid 8029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7976] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7976] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7976] ioctl(4, LOOP_CLR_FD) = 0 [pid 7976] close(4 [pid 7975] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 7975] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7975] ioctl(4, LOOP_CLR_FD) = 0 [pid 7975] close(4 [pid 8030] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 7974] <... close resumed>) = 0 [pid 7974] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7934] <... futex resumed>) = 0 [pid 7934] exit_group(0) = ? [pid 7974] +++ exited with 0 +++ [pid 7938] <... futex resumed>) = ? [pid 7938] +++ exited with 0 +++ [pid 7934] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7934, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=81 /* 0.81 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8045 [pid 8029] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 8045 attached [pid 8045] set_robust_list(0x5555693e0760, 24 [pid 8029] munmap(0x7ff7d3800000, 138412032 [pid 8045] <... set_robust_list resumed>) = 0 [pid 8045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8029] <... munmap resumed>) = 0 [pid 8045] setpgid(0, 0 [pid 8029] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8045] <... setpgid resumed>) = 0 [pid 8045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8029] <... openat resumed>) = 4 [pid 8045] <... openat resumed>) = 3 [pid 8029] ioctl(4, LOOP_SET_FD, 3 [pid 8045] write(3, "1000", 4) = 4 [pid 8045] close(3) = 0 [pid 8045] write(1, "executing program\n", 18executing program ) = 18 [pid 8029] <... ioctl resumed>) = 0 [pid 8045] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8029] close(3 [pid 8045] <... futex resumed>) = 0 [pid 8029] <... close resumed>) = 0 [pid 8029] close(4) = 0 [pid 8029] mkdir("./file1", 0777 [pid 8045] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8029] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8045] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8029] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8045] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [ 291.902060][ T8029] loop4: detected capacity change from 0 to 32768 [pid 8045] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8045] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8045] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8046 attached => {parent_tid=[8046]}, 88) = 8046 [pid 8046] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8045] rt_sigprocmask(SIG_SETMASK, [], [pid 8046] <... rseq resumed>) = 0 [pid 8045] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8046] set_robust_list(0x7ff7dbc929a0, 24 [pid 8045] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8046] <... set_robust_list resumed>) = 0 [pid 8045] <... futex resumed>) = 0 [pid 8046] rt_sigprocmask(SIG_SETMASK, [], [pid 8045] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8046] memfd_create("syzkaller", 0) = 3 [pid 8046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 7976] <... close resumed>) = 0 [pid 7975] <... close resumed>) = 0 [pid 7976] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 7976] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 7975] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 7936] <... futex resumed>) = 0 [pid 7940] <... futex resumed>) = 0 [pid 7936] exit_group(0) = ? [pid 7975] <... futex resumed>) = ? [pid 7975] +++ exited with 0 +++ [pid 7940] exit_group(0 [pid 7939] <... futex resumed>) = ? [pid 7939] +++ exited with 0 +++ [pid 7936] +++ exited with 0 +++ [pid 7940] <... exit_group resumed>) = ? [pid 7976] <... futex resumed>) = ? [pid 7941] <... futex resumed>) = ? [pid 7941] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7936, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=87 /* 0.87 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 7976] +++ exited with 0 +++ [pid 7940] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7940, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=79 /* 0.79 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 5844] <... restart_syscall resumed>) = 0 [pid 5843] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5844] <... openat resumed>) = 3 [pid 5843] <... openat resumed>) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5843] ioctl(3, LOOP_CLR_FD [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] close(3 [pid 5843] close(3 [pid 5844] <... close resumed>) = 0 [pid 5843] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 8055 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 8054 ./strace-static-x86_64: Process 8054 attached ./strace-static-x86_64: Process 8055 attached [pid 8054] set_robust_list(0x5555693e0760, 24) = 0 [pid 8054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8055] set_robust_list(0x5555693e0760, 24) = 0 [pid 8055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8054] <... prctl resumed>) = 0 [pid 8054] setpgid(0, 0) = 0 [pid 8054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8055] <... prctl resumed>) = 0 [pid 8055] setpgid(0, 0) = 0 [pid 8055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8054] <... openat resumed>) = 3 [pid 8054] write(3, "1000", 4) = 4 [pid 8054] close(3) = 0 executing program [pid 8055] <... openat resumed>) = 3 [pid 8055] write(3, "1000", 4) = 4 [pid 8055] close(3) = 0 [pid 8055] write(1, "executing program\n", 18) = 18 [pid 8055] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 executing program [pid 8055] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8054] write(1, "executing program\n", 18 [pid 8055] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8054] <... write resumed>) = 18 [pid 8055] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8054] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8055] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8054] <... futex resumed>) = 0 [pid 8055] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8054] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8055] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8054] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8055] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8054] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8055] <... mprotect resumed>) = 0 [pid 8054] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8055] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8054] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8054] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8055] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 8056 attached [pid 8055] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8057 attached [pid 8056] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8056] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8056] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8055] <... clone3 resumed> => {parent_tid=[8057]}, 88) = 8057 [pid 8054] <... clone3 resumed> => {parent_tid=[8056]}, 88) = 8056 [pid 8057] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8056] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8054] rt_sigprocmask(SIG_SETMASK, [], [pid 8057] <... rseq resumed>) = 0 [pid 8054] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8057] set_robust_list(0x7ff7dbc929a0, 24 [pid 8055] rt_sigprocmask(SIG_SETMASK, [], [pid 8054] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8057] <... set_robust_list resumed>) = 0 [pid 8055] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8054] <... futex resumed>) = 0 [pid 8057] rt_sigprocmask(SIG_SETMASK, [], [pid 8055] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8054] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8057] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8055] <... futex resumed>) = 0 [pid 8057] memfd_create("syzkaller", 0 [pid 8055] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8056] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8057] <... memfd_create resumed>) = 3 [pid 8057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8056] memfd_create("syzkaller", 0) = 3 [pid 8056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 292.127706][ T8029] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8030] <... write resumed>) = 16777216 [ 292.168570][ T8029] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8030] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8030] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8030] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8030] ioctl(4, LOOP_CLR_FD) = 0 [pid 8030] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8030] close(4) = 0 [pid 8030] close(3 [pid 8046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8029] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8029] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 8029] ioctl(3, LOOP_CLR_FD) = 0 [ 292.449785][ T8029] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8029] close(3 [pid 8030] <... close resumed>) = 0 [pid 8030] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8024] <... futex resumed>) = 0 [pid 8030] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8024] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8030] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8024] <... futex resumed>) = 0 [pid 8030] creat("./bus", 000 [pid 8024] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8030] <... creat resumed>) = 3 [pid 8030] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8024] <... futex resumed>) = 0 [pid 8030] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8024] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8024] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 8024] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8024] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8056] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8058 attached => {parent_tid=[8058]}, 88) = 8058 [pid 8024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8024] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8024] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8058] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8058] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8058] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8058] memfd_create("syzkaller", 0) = 4 [pid 8058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8029] <... close resumed>) = 0 [pid 8029] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8019] <... futex resumed>) = 0 [pid 8019] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8019] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8029] creat("./bus", 000 [pid 8019] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8019] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8019] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8019] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8019] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8059]}, 88) = 8059 [pid 8019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8019] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8019] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8059 attached [pid 8046] <... write resumed>) = 16777216 [pid 8059] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8059] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8046] munmap(0x7ff7d3800000, 138412032 [pid 8059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8059] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8059] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8046] <... munmap resumed>) = 0 [pid 8019] <... futex resumed>) = 0 [pid 8059] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8019] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8046] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8019] <... futex resumed>) = 0 [pid 8059] memfd_create("syzkaller", 0 [pid 8019] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8046] <... openat resumed>) = 4 [pid 8059] <... memfd_create resumed>) = 4 [pid 8046] ioctl(4, LOOP_SET_FD, 3 [pid 8059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8046] <... ioctl resumed>) = 0 [pid 8059] <... mmap resumed>) = 0x7ff7d3800000 [pid 8046] close(3) = 0 [pid 8046] close(4) = 0 [pid 8046] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8056] <... write resumed>) = 16777216 [ 292.958027][ T8046] loop3: detected capacity change from 0 to 32768 [pid 8046] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8056] munmap(0x7ff7d3800000, 138412032 [pid 8058] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8056] <... munmap resumed>) = 0 [pid 8056] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8056] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8056] close(3) = 0 [pid 8056] close(4) = 0 [pid 8056] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 293.090290][ T8046] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 293.100335][ T8056] loop0: detected capacity change from 0 to 32768 [pid 8056] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8057] <... write resumed>) = 16777216 [ 293.150096][ T8046] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8057] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8057] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8057] ioctl(4, LOOP_SET_FD, 3 [pid 8059] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8057] <... ioctl resumed>) = 0 [ 293.240241][ T8057] loop1: detected capacity change from 0 to 32768 [pid 8057] close(3) = 0 [pid 8057] close(4) = 0 [pid 8057] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 293.296898][ T8056] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 293.319785][ T8056] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8057] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8058] <... write resumed>) = 16777216 [pid 8058] munmap(0x7ff7d3800000, 138412032 [pid 8046] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8046] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 8046] ioctl(3, LOOP_CLR_FD) = 0 [ 293.419043][ T8046] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8046] close(3 [pid 8058] <... munmap resumed>) = 0 [ 293.501417][ T8057] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8056] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8056] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8058] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 8058] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8058] ioctl(5, LOOP_CLR_FD) = 0 [pid 8056] <... openat resumed>) = 3 [pid 8058] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8058] close(5) = 0 [ 293.550449][ T8056] bcachefs: bch2_fs_get_tree() error: EINVAL [ 293.566250][ T8057] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8058] close(4 [pid 8056] ioctl(3, LOOP_CLR_FD) = 0 [pid 8056] close(3 [pid 8046] <... close resumed>) = 0 [pid 8046] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8045] <... futex resumed>) = 0 [pid 8046] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8045] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8046] creat("./bus", 000 [pid 8045] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 8045] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8045] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8045] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8045] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8081 attached => {parent_tid=[8081]}, 88) = 8081 [pid 8045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8045] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8081] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8045] <... futex resumed>) = 0 [pid 8081] <... rseq resumed>) = 0 [pid 8045] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8081] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8081] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8081] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8045] <... futex resumed>) = 0 [pid 8081] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8045] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8045] <... futex resumed>) = 0 [pid 8045] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8081] memfd_create("syzkaller", 0) = 4 [pid 8030] <... write resumed>) = 16776704 [pid 8081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8030] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8030] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8057] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8057] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 8057] ioctl(3, LOOP_CLR_FD) = 0 [pid 8057] close(3 [pid 8059] <... write resumed>) = 16777216 [pid 8058] <... close resumed>) = 0 [ 293.837526][ T8057] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8056] <... close resumed>) = 0 [pid 8059] munmap(0x7ff7d3800000, 138412032 [pid 8056] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8054] <... futex resumed>) = 0 [pid 8056] creat("./bus", 000 [pid 8054] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8054] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8058] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8024] <... futex resumed>) = 0 [pid 8024] exit_group(0 [pid 8030] <... futex resumed>) = ? [pid 8024] <... exit_group resumed>) = ? [pid 8030] +++ exited with 0 +++ [pid 8059] <... munmap resumed>) = 0 [pid 8059] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 8059] ioctl(5, LOOP_SET_FD, 4 [pid 8054] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8054] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8054] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8054] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8059] <... ioctl resumed>) = 0 [pid 8054] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8082]}, 88) = 8082 [pid 8054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8054] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8054] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8082 attached [pid 8059] close(4 [pid 8082] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8059] <... close resumed>) = 0 [pid 8059] close(5 [pid 8082] <... rseq resumed>) = 0 [pid 8059] <... close resumed>) = 0 [pid 8058] +++ exited with 0 +++ [pid 8024] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8024, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=96 /* 0.96 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 8082] set_robust_list(0x7ff7dbc719a0, 24 [pid 8059] mkdir("./bus", 0777 [pid 8082] <... set_robust_list resumed>) = 0 [pid 8059] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5845] <... restart_syscall resumed>) = 0 [pid 8082] rt_sigprocmask(SIG_SETMASK, [], [ 293.960688][ T8059] loop4: detected capacity change from 0 to 32768 [pid 8059] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8054] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5845] <... openat resumed>) = 3 [pid 8054] futex(0x7ff7dbd6e62c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 8054] <... futex resumed>) = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 8082] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5845] close(3 [pid 8082] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 8054] <... mmap resumed>) = 0x7ff7dbc30000 [pid 5845] <... close resumed>) = 0 [pid 8054] mprotect(0x7ff7dbc31000, 131072, PROT_READ|PROT_WRITE [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8054] <... mprotect resumed>) = 0 [pid 8054] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ./strace-static-x86_64: Process 8083 attached [pid 8082] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8083 [pid 8082] <... futex resumed>) = 0 [pid 8082] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8083] set_robust_list(0x5555693e0760, 24 [pid 8054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc50990, parent_tid=0x7ff7dbc50990, exit_signal=0, stack=0x7ff7dbc30000, stack_size=0x20240, tls=0x7ff7dbc506c0} [pid 8083] <... set_robust_list resumed>) = 0 [pid 8083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8054] <... clone3 resumed> => {parent_tid=[8084]}, 88) = 8084 [pid 8083] <... prctl resumed>) = 0 [pid 8054] rt_sigprocmask(SIG_SETMASK, [], [pid 8083] setpgid(0, 0 [pid 8054] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 8084 attached [pid 8083] <... setpgid resumed>) = 0 [pid 8083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8054] futex(0x7ff7dbd6e628, FUTEX_WAKE_PRIVATE, 1000000 [pid 8083] <... openat resumed>) = 3 [pid 8054] <... futex resumed>) = 0 [pid 8084] rseq(0x7ff7dbc50fe0, 0x20, 0, 0x53053053 [pid 8083] write(3, "1000", 4 [pid 8054] futex(0x7ff7dbd6e62c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8084] <... rseq resumed>) = 0 [pid 8083] <... write resumed>) = 4 [pid 8083] close(3) = 0 executing program [pid 8083] write(1, "executing program\n", 18) = 18 [pid 8083] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8084] set_robust_list(0x7ff7dbc509a0, 24 [pid 8083] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8084] <... set_robust_list resumed>) = 0 [pid 8083] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8084] rt_sigprocmask(SIG_SETMASK, [], [pid 8083] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8084] memfd_create("syzkaller", 0 [pid 8083] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8084] <... memfd_create resumed>) = 4 [pid 8083] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8083] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8083] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8085 attached [pid 8084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8083] <... clone3 resumed> => {parent_tid=[8085]}, 88) = 8085 [pid 8083] rt_sigprocmask(SIG_SETMASK, [], [ 294.010029][ T8059] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8059) [pid 8085] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8085] <... rseq resumed>) = 0 [pid 8083] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8085] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8083] <... futex resumed>) = 0 [pid 8085] rt_sigprocmask(SIG_SETMASK, [], [pid 8083] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8085] memfd_create("syzkaller", 0) = 3 [pid 8085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 294.139809][ T8059] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 294.193961][ T8059] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 8057] <... close resumed>) = 0 [pid 8057] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8057] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8055] <... futex resumed>) = 0 [pid 8057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8055] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8057] creat("./bus", 000 [pid 8055] <... futex resumed>) = 0 [pid 8055] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8057] <... creat resumed>) = 3 [pid 8056] <... creat resumed>) = 3 [pid 8046] <... creat resumed>) = 3 [pid 8057] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8056] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8046] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8057] <... futex resumed>) = 1 [pid 8056] <... futex resumed>) = 0 [pid 8055] <... futex resumed>) = 0 [pid 8046] <... futex resumed>) = 0 [pid 8057] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8056] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8046] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8029] <... creat resumed>) = 3 [pid 8057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8055] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8057] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8055] <... futex resumed>) = 0 [pid 8081] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8029] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8055] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8029] <... futex resumed>) = 0 [pid 8029] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8055] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8055] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8055] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8055] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8055] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8055] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8102 attached => {parent_tid=[8102]}, 88) = 8102 [pid 8102] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8055] rt_sigprocmask(SIG_SETMASK, [], [pid 8102] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8055] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8055] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8055] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 294.351638][ T8059] BTRFS info (device loop4): rebuilding free space tree [pid 8102] memfd_create("syzkaller", 0) = 4 [pid 8102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 294.429086][ T8059] BTRFS info (device loop4): disabling free space tree [ 294.479383][ T8059] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 294.518775][ T8059] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8084] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8081] <... write resumed>) = 16777216 [pid 8081] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8081] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 8081] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8081] close(4) = 0 [pid 8081] close(5) = 0 [pid 8081] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 294.741638][ T8081] loop3: detected capacity change from 0 to 32768 [ 294.770720][ T8081] BTRFS: device /dev/loop3 (7:3) using temp-fsid a569df87-b3e6-4479-954d-f30214651f1d [ 294.795374][ T8081] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8081) [pid 8081] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 294.869454][ T8081] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 294.897823][ T8081] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 8102] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8084] <... write resumed>) = 16777216 [ 294.986901][ T8081] BTRFS info (device loop3): rebuilding free space tree [ 295.000885][ T8081] BTRFS info (device loop3): disabling free space tree [ 295.008273][ T8081] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 295.019148][ T8081] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8084] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 8084] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8084] close(4) = 0 [pid 8084] close(5) = 0 [pid 8084] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 295.079471][ T8084] loop0: detected capacity change from 0 to 32768 [ 295.131733][ T8084] BTRFS: device /dev/loop0 (7:0) using temp-fsid ede97d5b-a494-4478-acb7-2cd5865b7cb6 [ 295.157763][ T8084] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8084) [pid 8084] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8085] <... write resumed>) = 16777216 [pid 8085] munmap(0x7ff7d3800000, 138412032 [pid 8057] <... write resumed>) = 16776704 [pid 8057] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8057] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8085] <... munmap resumed>) = 0 [pid 8102] <... write resumed>) = 16777216 [pid 8085] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 295.188557][ T8059] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 295.188778][ T8081] BTRFS info (device loop3): last unmount of filesystem a569df87-b3e6-4479-954d-f30214651f1d [pid 8085] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8085] ioctl(4, LOOP_CLR_FD) = 0 [pid 8085] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8085] close(4) = 0 [pid 8085] close(3 [ 295.241966][ T8084] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8102] munmap(0x7ff7d3800000, 138412032 [pid 8059] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8059] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8059] ioctl(4, LOOP_CLR_FD [pid 8102] <... munmap resumed>) = 0 [pid 8059] <... ioctl resumed>) = 0 [pid 8102] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 8081] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8102] ioctl(5, LOOP_SET_FD, 4 [pid 8059] close(4 [pid 8102] <... ioctl resumed>) = 0 [pid 8081] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8081] ioctl(4, LOOP_CLR_FD) = 0 [pid 8081] close(4) = 0 [pid 8081] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8102] close(4 [pid 8081] <... futex resumed>) = 1 [pid 8045] <... futex resumed>) = 0 [pid 8102] <... close resumed>) = 0 [pid 8081] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8045] exit_group(0 [pid 8102] close(5 [pid 8081] <... futex resumed>) = ? [pid 8046] <... futex resumed>) = ? [pid 8045] <... exit_group resumed>) = ? [pid 8102] <... close resumed>) = 0 [pid 8046] +++ exited with 0 +++ [ 295.295339][ T8084] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 295.320599][ T8102] loop1: detected capacity change from 0 to 32768 [pid 8102] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 295.386524][ T8102] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8102) [ 295.473792][ T8102] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 295.525231][ T8102] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 295.535873][ T8084] BTRFS info (device loop0): rebuilding free space tree [pid 8102] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8085] <... close resumed>) = 0 [pid 8085] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8083] <... futex resumed>) = 0 [pid 8085] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8083] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8081] +++ exited with 0 +++ [pid 8045] +++ exited with 0 +++ [pid 8085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8083] <... futex resumed>) = 0 [pid 8085] creat("./bus", 000 [ 295.606121][ T8084] BTRFS info (device loop0): disabling free space tree [ 295.639152][ T8084] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8083] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8059] <... close resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8045, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=81 /* 0.81 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8147 [ 295.677847][ T8084] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) ./strace-static-x86_64: Process 8147 attached [pid 8059] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8083] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8059] <... futex resumed>) = 1 [pid 8083] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8059] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8083] <... futex resumed>) = 0 [pid 8147] set_robust_list(0x5555693e0760, 24 [pid 8083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8147] <... set_robust_list resumed>) = 0 [pid 8083] <... mmap resumed>) = 0x7ff7dbc51000 [pid 8019] <... futex resumed>) = 0 [pid 8083] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 8147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8083] <... mprotect resumed>) = 0 [pid 8019] exit_group(0 [pid 8147] <... prctl resumed>) = 0 [pid 8083] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8059] <... futex resumed>) = ? [pid 8029] <... futex resumed>) = ? [pid 8019] <... exit_group resumed>) = ? [pid 8083] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8059] +++ exited with 0 +++ [pid 8147] setpgid(0, 0 [pid 8083] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 8029] +++ exited with 0 +++ [pid 8019] +++ exited with 0 +++ ./strace-static-x86_64: Process 8150 attached [pid 8147] <... setpgid resumed>) = 0 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8019, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=108 /* 1.08 s */} --- [pid 8147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8083] <... clone3 resumed> => {parent_tid=[8150]}, 88) = 8150 [pid 8147] <... openat resumed>) = 3 [pid 8083] rt_sigprocmask(SIG_SETMASK, [], [pid 8150] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8147] write(3, "1000", 4 [pid 8083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8150] <... rseq resumed>) = 0 [pid 8147] <... write resumed>) = 4 [pid 8083] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8083] <... futex resumed>) = 0 [pid 8150] set_robust_list(0x7ff7dbc719a0, 24 [pid 8147] close(3 [pid 8083] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5850] <... openat resumed>) = 3 [pid 8150] <... set_robust_list resumed>) = 0 [pid 8147] <... close resumed>) = 0 [pid 5850] ioctl(3, LOOP_CLR_FDexecuting program [pid 8150] rt_sigprocmask(SIG_SETMASK, [], [pid 8147] write(1, "executing program\n", 18 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8150] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8147] <... write resumed>) = 18 [pid 5850] close(3 [pid 8150] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8147] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] <... close resumed>) = 0 [pid 8150] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 8147] <... futex resumed>) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8153 attached [pid 8150] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8147] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8150] <... futex resumed>) = 1 [pid 8147] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8083] <... futex resumed>) = 0 [pid 8150] memfd_create("syzkaller", 0 [pid 8147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8083] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8153] set_robust_list(0x5555693e0760, 24 [pid 8150] <... memfd_create resumed>) = 4 [pid 8147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8083] <... futex resumed>) = 0 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 8153 [pid 8147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8083] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8153] <... set_robust_list resumed>) = 0 [pid 8150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8147] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8150] <... mmap resumed>) = 0x7ff7d3800000 [pid 8147] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8153] <... prctl resumed>) = 0 [pid 8147] <... mprotect resumed>) = 0 [pid 8153] setpgid(0, 0) = 0 [pid 8153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8147] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8153] <... openat resumed>) = 3 [pid 8147] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8153] write(3, "1000", 4 [pid 8147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8154 attached [pid 8153] <... write resumed>) = 4 [pid 8153] close(3 [pid 8147] <... clone3 resumed> => {parent_tid=[8154]}, 88) = 8154 executing program [pid 8153] <... close resumed>) = 0 [pid 8147] rt_sigprocmask(SIG_SETMASK, [], [pid 8153] write(1, "executing program\n", 18 [pid 8147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8153] <... write resumed>) = 18 [pid 8147] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8154] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8153] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8147] <... futex resumed>) = 0 [pid 8154] <... rseq resumed>) = 0 [pid 8153] <... futex resumed>) = 0 [ 295.819681][ T8102] BTRFS info (device loop1): rebuilding free space tree [pid 8147] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8154] set_robust_list(0x7ff7dbc929a0, 24 [pid 8153] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8154] <... set_robust_list resumed>) = 0 [pid 8153] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8154] rt_sigprocmask(SIG_SETMASK, [], [pid 8153] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8154] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8154] memfd_create("syzkaller", 0 [pid 8153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8154] <... memfd_create resumed>) = 3 [pid 8153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8153] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8154] <... mmap resumed>) = 0x7ff7d3800000 [pid 8153] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8153] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8155]}, 88) = 8155 ./strace-static-x86_64: Process 8155 attached [pid 8153] rt_sigprocmask(SIG_SETMASK, [], [pid 8155] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8155] <... rseq resumed>) = 0 [pid 8153] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8155] set_robust_list(0x7ff7dbc929a0, 24 [pid 8153] <... futex resumed>) = 0 [pid 8155] <... set_robust_list resumed>) = 0 [pid 8153] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8155] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8155] memfd_create("syzkaller", 0) = 3 [pid 8155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 295.939910][ T8102] BTRFS info (device loop1): disabling free space tree [ 295.970160][ T8102] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 296.004963][ T8102] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8085] <... creat resumed>) = 3 [pid 8085] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 296.138033][ T8102] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 296.148567][ T8084] BTRFS info (device loop0): last unmount of filesystem ede97d5b-a494-4478-acb7-2cd5865b7cb6 [pid 8085] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8102] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8102] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8102] ioctl(4, LOOP_CLR_FD) = 0 [pid 8102] close(4 [pid 8084] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8084] ioctl(4, LOOP_CLR_FD) = 0 [pid 8084] close(4 [pid 8155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8150] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8102] <... close resumed>) = 0 [pid 8102] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8055] <... futex resumed>) = 0 [pid 8055] exit_group(0 [pid 8057] <... futex resumed>) = ? [pid 8055] <... exit_group resumed>) = ? [pid 8102] +++ exited with 0 +++ [pid 8057] +++ exited with 0 +++ [pid 8084] <... close resumed>) = 0 [pid 8084] futex(0x7ff7dbd6e62c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8055] +++ exited with 0 +++ [pid 8084] <... futex resumed>) = 1 [pid 8054] <... futex resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8055, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=121 /* 1.21 s */} --- [pid 8054] exit_group(0 [pid 8084] exit_group(0 [pid 8084] +++ exited with 0 +++ [pid 8082] <... futex resumed>) = ? [pid 8056] <... futex resumed>) = ? [pid 8054] <... exit_group resumed>) = ? [pid 8082] +++ exited with 0 +++ [pid 8056] +++ exited with 0 +++ [pid 8054] +++ exited with 0 +++ [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8054, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=92 /* 0.92 s */} --- [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] close(3 [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 5844] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8156 ./strace-static-x86_64: Process 8156 attached [pid 8156] set_robust_list(0x5555693e0760, 24) = 0 [pid 5843] <... restart_syscall resumed>) = 0 [pid 8156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8156] setpgid(0, 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8156] <... setpgid resumed>) = 0 [pid 8156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] <... openat resumed>) = 3 [pid 8156] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8157 attached , child_tidptr=0x5555693e0750) = 8157 [pid 8157] set_robust_list(0x5555693e0760, 24) = 0 [pid 8157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8156] write(3, "1000", 4 [pid 8157] <... prctl resumed>) = 0 [pid 8156] <... write resumed>) = 4 [pid 8157] setpgid(0, 0 [pid 8156] close(3) = 0 executing program [pid 8156] write(1, "executing program\n", 18 [pid 8157] <... setpgid resumed>) = 0 [pid 8156] <... write resumed>) = 18 [pid 8156] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8156] <... futex resumed>) = 0 [pid 8156] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8157] <... openat resumed>) = 3 [pid 8156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8157] write(3, "1000", 4 [pid 8156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8157] <... write resumed>) = 4 [pid 8156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8157] close(3) = 0 [pid 8156] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8156] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8157] write(1, "executing program\n", 18executing program ) = 18 [pid 8156] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8157] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8156] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8157] <... futex resumed>) = 0 [pid 8157] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8157] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 8158 attached NULL, 8) = 0 [pid 8158] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8156] <... clone3 resumed> => {parent_tid=[8158]}, 88) = 8158 [pid 8157] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8156] rt_sigprocmask(SIG_SETMASK, [], [pid 8157] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8158] <... rseq resumed>) = 0 [pid 8157] <... mprotect resumed>) = 0 [pid 8158] set_robust_list(0x7ff7dbc929a0, 24 [pid 8157] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8158] <... set_robust_list resumed>) = 0 [pid 8158] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8158] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8157] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8159 attached [pid 8156] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8159] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8157] <... clone3 resumed> => {parent_tid=[8159]}, 88) = 8159 [pid 8159] <... rseq resumed>) = 0 [pid 8159] set_robust_list(0x7ff7dbc929a0, 24 [pid 8157] rt_sigprocmask(SIG_SETMASK, [], [pid 8154] <... write resumed>) = 16777216 [pid 8159] <... set_robust_list resumed>) = 0 [pid 8158] <... futex resumed>) = 0 [pid 8156] <... futex resumed>) = 1 [pid 8159] rt_sigprocmask(SIG_SETMASK, [], [pid 8158] memfd_create("syzkaller", 0 [pid 8157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8156] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8154] munmap(0x7ff7d3800000, 138412032 [pid 8157] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8159] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8158] <... memfd_create resumed>) = 3 [pid 8157] <... futex resumed>) = 0 [pid 8159] memfd_create("syzkaller", 0 [pid 8158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8157] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8159] <... memfd_create resumed>) = 3 [pid 8158] <... mmap resumed>) = 0x7ff7d3800000 [pid 8159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8154] <... munmap resumed>) = 0 [pid 8154] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8154] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8154] close(3 [pid 8150] <... write resumed>) = 16777216 [pid 8154] <... close resumed>) = 0 [pid 8154] close(4) = 0 [pid 8154] mkdir("./file1", 0777 [ 296.750388][ T8154] loop3: detected capacity change from 0 to 32768 [pid 8150] munmap(0x7ff7d3800000, 138412032 [pid 8154] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8154] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8150] <... munmap resumed>) = 0 [pid 8150] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 8150] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8150] ioctl(5, LOOP_CLR_FD [pid 8155] <... write resumed>) = 16777216 [pid 8150] <... ioctl resumed>) = 0 [pid 8155] munmap(0x7ff7d3800000, 138412032 [pid 8150] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8150] close(5) = 0 [pid 8150] close(4 [pid 8155] <... munmap resumed>) = 0 [pid 8155] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8155] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8155] close(3) = 0 [pid 8155] close(4) = 0 [ 296.928839][ T8155] loop4: detected capacity change from 0 to 32768 [ 296.965674][ T8154] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8155] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 296.975259][ T8154] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8155] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8150] <... close resumed>) = 0 [pid 8150] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8083] <... futex resumed>) = 0 [pid 8150] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8083] exit_group(0 [pid 8150] <... futex resumed>) = ? [pid 8085] <... futex resumed>) = ? [pid 8083] <... exit_group resumed>) = ? [pid 8150] +++ exited with 0 +++ [pid 8085] +++ exited with 0 +++ [pid 8083] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8083, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=80 /* 0.80 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8174 attached [pid 8174] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8174 [pid 8174] <... set_robust_list resumed>) = 0 [pid 8174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8174] setpgid(0, 0) = 0 [pid 8174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8174] write(3, "1000", 4) = 4 [pid 8174] close(3) = 0 executing program [pid 8174] write(1, "executing program\n", 18) = 18 [pid 8174] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8174] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8174] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8174] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8174] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8175]}, 88) = 8175 [pid 8174] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8174] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8174] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8175 attached [ 297.136775][ T8155] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 297.176542][ T8155] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8175] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8175] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8154] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8175] memfd_create("syzkaller", 0 [pid 8154] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8175] <... memfd_create resumed>) = 3 [pid 8154] <... openat resumed>) = 3 [pid 8175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8154] ioctl(3, LOOP_CLR_FD [pid 8175] <... mmap resumed>) = 0x7ff7d3800000 [pid 8154] <... ioctl resumed>) = 0 [ 297.185504][ T8154] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8154] close(3 [pid 8158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8155] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8154] <... close resumed>) = 0 [pid 8155] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8154] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8147] <... futex resumed>) = 0 [pid 8155] <... openat resumed>) = 3 [pid 8154] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8147] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8159] <... write resumed>) = 16777216 [pid 8155] ioctl(3, LOOP_CLR_FD [pid 8154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8147] <... futex resumed>) = 0 [pid 8155] <... ioctl resumed>) = 0 [pid 8154] creat("./bus", 000 [pid 8147] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8154] <... creat resumed>) = 3 [pid 8159] munmap(0x7ff7d3800000, 138412032 [pid 8155] close(3 [pid 8154] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8147] <... futex resumed>) = 0 [pid 8147] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8147] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8159] <... munmap resumed>) = 0 [ 297.440510][ T8155] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8154] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8159] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8147] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8147] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8147] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8147] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8176 attached => {parent_tid=[8176]}, 88) = 8176 [pid 8147] rt_sigprocmask(SIG_SETMASK, [], [pid 8176] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8147] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8176] <... rseq resumed>) = 0 [pid 8147] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8176] set_robust_list(0x7ff7dbc719a0, 24 [pid 8147] <... futex resumed>) = 0 [pid 8147] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8176] <... set_robust_list resumed>) = 0 [pid 8159] close(3 [pid 8176] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8176] memfd_create("syzkaller", 0 [pid 8159] <... close resumed>) = 0 [pid 8176] <... memfd_create resumed>) = 4 [pid 8159] close(4) = 0 [pid 8176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8159] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 297.528577][ T8159] loop0: detected capacity change from 0 to 32768 [ 297.663528][ T8159] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8159] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8155] <... close resumed>) = 0 [ 297.718015][ T8159] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8158] <... write resumed>) = 16777216 [pid 8175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8158] munmap(0x7ff7d3800000, 138412032 [pid 8155] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8153] <... futex resumed>) = 0 [pid 8155] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8153] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8155] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8153] <... futex resumed>) = 0 [pid 8155] creat("./bus", 000 [pid 8153] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8158] <... munmap resumed>) = 0 [pid 8158] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8158] ioctl(4, LOOP_SET_FD, 3 [pid 8153] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8153] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8158] <... ioctl resumed>) = 0 [pid 8153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8158] close(3 [pid 8153] <... mmap resumed>) = 0x7ff7dbc51000 [pid 8158] <... close resumed>) = 0 [pid 8153] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 8158] close(4) = 0 [pid 8153] <... mprotect resumed>) = 0 [pid 8153] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8158] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8153] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8158] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8184 attached [pid 8184] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8153] <... clone3 resumed> => {parent_tid=[8184]}, 88) = 8184 [pid 8184] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8153] rt_sigprocmask(SIG_SETMASK, [], [pid 8184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8159] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8184] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8159] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8153] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8153] <... futex resumed>) = 0 [pid 8159] <... openat resumed>) = 3 [pid 8184] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8159] ioctl(3, LOOP_CLR_FD [pid 8153] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8159] <... ioctl resumed>) = 0 [pid 8159] close(3 [pid 8184] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8153] <... futex resumed>) = 0 [pid 8153] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8153] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8184] <... futex resumed>) = 1 [pid 8184] memfd_create("syzkaller", 0) = 4 [pid 8184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 297.874190][ T8158] loop1: detected capacity change from 0 to 32768 [ 297.881889][ T8159] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8159] <... close resumed>) = 0 [pid 8159] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8157] <... futex resumed>) = 0 [pid 8159] creat("./bus", 000 [pid 8157] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 298.086378][ T8158] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 298.123061][ T8158] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8157] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8176] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8157] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8157] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8157] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8157] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8192 attached => {parent_tid=[8192]}, 88) = 8192 [pid 8157] rt_sigprocmask(SIG_SETMASK, [], [pid 8192] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8192] <... rseq resumed>) = 0 [pid 8157] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8157] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8192] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8192] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8192] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8157] <... futex resumed>) = 0 [pid 8192] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8157] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8157] <... futex resumed>) = 0 [pid 8192] memfd_create("syzkaller", 0 [pid 8157] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8192] <... memfd_create resumed>) = 4 [pid 8192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8158] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8175] <... write resumed>) = 16777216 [pid 8175] munmap(0x7ff7d3800000, 138412032 [pid 8158] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8184] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 298.271082][ T8158] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8158] <... openat resumed>) = 3 [pid 8175] <... munmap resumed>) = 0 [pid 8158] ioctl(3, LOOP_CLR_FD [pid 8175] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8175] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8175] ioctl(4, LOOP_CLR_FD [pid 8158] <... ioctl resumed>) = 0 [pid 8175] <... ioctl resumed>) = 0 [pid 8158] close(3 [pid 8175] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8175] close(4) = 0 [pid 8175] close(3) = 0 [pid 8175] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8174] <... futex resumed>) = 0 [pid 8174] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8175] creat("./bus", 000 [pid 8174] <... futex resumed>) = 0 [pid 8174] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8158] <... close resumed>) = 0 [pid 8174] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8174] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8174] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8174] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8193 attached => {parent_tid=[8193]}, 88) = 8193 [pid 8174] rt_sigprocmask(SIG_SETMASK, [], [pid 8193] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8174] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8193] <... rseq resumed>) = 0 [pid 8174] <... futex resumed>) = 0 [pid 8193] set_robust_list(0x7ff7dbc719a0, 24 [pid 8174] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8193] <... set_robust_list resumed>) = 0 [pid 8193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8193] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8193] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8184] <... write resumed>) = 16777216 [pid 8174] <... futex resumed>) = 0 [pid 8158] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8193] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8158] <... futex resumed>) = 1 [pid 8156] <... futex resumed>) = 0 [pid 8158] creat("./bus", 000 [pid 8156] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8174] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8156] <... futex resumed>) = 0 [pid 8193] <... futex resumed>) = 0 [pid 8174] <... futex resumed>) = 1 [pid 8156] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8193] memfd_create("syzkaller", 0 [pid 8174] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8193] <... memfd_create resumed>) = 4 [pid 8193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8184] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8184] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 8184] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8156] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8154] <... write resumed>) = 16776704 [pid 8156] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8154] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8156] <... futex resumed>) = 0 [pid 8154] <... futex resumed>) = 0 [pid 8156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8154] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8156] <... mmap resumed>) = 0x7ff7dbc51000 [pid 8156] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8156] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8194 attached [pid 8184] close(4) = 0 [pid 8156] <... clone3 resumed> => {parent_tid=[8194]}, 88) = 8194 [pid 8184] close(5 [pid 8156] rt_sigprocmask(SIG_SETMASK, [], [pid 8192] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8184] <... close resumed>) = 0 [pid 8156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8156] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8156] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8194] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8194] set_robust_list(0x7ff7dbc719a0, 24 [pid 8184] mkdir("./bus", 0777 [pid 8194] <... set_robust_list resumed>) = 0 [pid 8184] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8194] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 298.739679][ T8184] loop4: detected capacity change from 0 to 32768 [pid 8184] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8194] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8176] <... write resumed>) = 16777216 [pid 8194] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8194] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8156] <... futex resumed>) = 0 [pid 8156] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8194] <... futex resumed>) = 0 [pid 8156] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8194] memfd_create("syzkaller", 0 [pid 8176] munmap(0x7ff7d3800000, 138412032 [pid 8194] <... memfd_create resumed>) = 4 [pid 8194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 298.782518][ T8184] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8184) [pid 8176] <... munmap resumed>) = 0 [pid 8176] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 298.824588][ T8184] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 298.850290][ T8176] loop3: detected capacity change from 0 to 32768 [pid 8176] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8176] close(4) = 0 [pid 8176] close(5) = 0 [pid 8176] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 298.878368][ T8184] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 298.891242][ T8176] BTRFS: device /dev/loop3 (7:3) using temp-fsid 2e810eff-354a-4198-b618-74fcda5f200b [ 298.924994][ T8176] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8176) [ 299.068293][ T8176] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8176] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8159] <... creat resumed>) = 3 [pid 8159] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8159] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8155] <... creat resumed>) = 3 [pid 8155] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8155] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8175] <... creat resumed>) = 3 [pid 8158] <... creat resumed>) = 3 [pid 8175] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8158] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8175] <... futex resumed>) = 0 [pid 8158] <... futex resumed>) = 0 [pid 8175] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 299.128896][ T8176] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 299.152203][ T8184] BTRFS info (device loop4): rebuilding free space tree [pid 8158] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8192] <... write resumed>) = 16777216 [pid 8193] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 299.224562][ T8184] BTRFS info (device loop4): disabling free space tree [ 299.257855][ T8184] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 299.267339][ T8176] BTRFS info (device loop3): rebuilding free space tree [pid 8192] munmap(0x7ff7d3800000, 138412032 [pid 8194] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8192] <... munmap resumed>) = 0 [pid 8192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 8192] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8192] close(4) = 0 [pid 8192] close(5) = 0 [pid 8192] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 299.300265][ T8184] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 299.312776][ T8176] BTRFS info (device loop3): disabling free space tree [ 299.314655][ T8192] loop0: detected capacity change from 0 to 32768 [ 299.328714][ T8176] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 299.342305][ T8192] BTRFS: device /dev/loop0 (7:0) using temp-fsid e9c65747-8c58-4a5b-8edc-cf82c3d49c09 [ 299.354037][ T8176] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 299.368505][ T8192] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8192) [ 299.400457][ T8176] BTRFS info (device loop3): last unmount of filesystem 2e810eff-354a-4198-b618-74fcda5f200b [ 299.400495][ T8184] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 299.470908][ T8192] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 299.483997][ T8192] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 8192] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8176] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8184] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8184] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8176] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8184] <... openat resumed>) = 4 [pid 8176] <... openat resumed>) = 4 [pid 8184] ioctl(4, LOOP_CLR_FD [pid 8176] ioctl(4, LOOP_CLR_FD [pid 8184] <... ioctl resumed>) = 0 [pid 8176] <... ioctl resumed>) = 0 [pid 8184] close(4 [pid 8176] close(4) = 0 [pid 8176] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8147] <... futex resumed>) = 0 [pid 8176] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8147] exit_group(0 [pid 8154] <... futex resumed>) = ? [pid 8147] <... exit_group resumed>) = ? [pid 8154] +++ exited with 0 +++ [pid 8176] <... futex resumed>) = ? [pid 8194] <... write resumed>) = 16777216 [pid 8194] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8194] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 8194] ioctl(5, LOOP_SET_FD, 4 [pid 8176] +++ exited with 0 +++ [pid 8147] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8147, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=117 /* 1.17 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 8194] <... ioctl resumed>) = 0 [pid 5847] <... ioctl resumed>) = 0 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8242 ./strace-static-x86_64: Process 8242 attached [pid 8242] set_robust_list(0x5555693e0760, 24 [pid 8194] close(4) = 0 [ 299.658647][ T8194] loop1: detected capacity change from 0 to 32768 [ 299.689621][ T8192] BTRFS info (device loop0): rebuilding free space tree [pid 8194] close(5) = 0 [pid 8194] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8194] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8242] <... set_robust_list resumed>) = 0 [pid 8242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8242] setpgid(0, 0) = 0 [pid 8242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8242] write(3, "1000", 4) = 4 [pid 8242] close(3executing program ) = 0 [ 299.710858][ T8194] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8194) [pid 8242] write(1, "executing program\n", 18) = 18 [pid 8242] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8242] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8242] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8242] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8242] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8242] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8244 attached => {parent_tid=[8244]}, 88) = 8244 [pid 8242] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8242] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8242] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8244] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8244] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8244] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8244] memfd_create("syzkaller", 0) = 3 [pid 8244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 299.752192][ T8192] BTRFS info (device loop0): disabling free space tree [ 299.771459][ T8192] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 299.787808][ T8194] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8184] <... close resumed>) = 0 [ 299.818171][ T8194] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 299.827051][ T8192] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8184] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8153] <... futex resumed>) = 0 [pid 8153] exit_group(0) = ? [pid 8155] <... futex resumed>) = ? [pid 8184] +++ exited with 0 +++ [pid 8155] +++ exited with 0 +++ [pid 8153] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8153, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=93 /* 0.93 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8255 ./strace-static-x86_64: Process 8255 attached [pid 8255] set_robust_list(0x5555693e0760, 24) = 0 [pid 8255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8255] setpgid(0, 0) = 0 [pid 8255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8255] write(3, "1000", 4 [pid 8193] <... write resumed>) = 16777216 [pid 8255] <... write resumed>) = 4 [pid 8193] munmap(0x7ff7d3800000, 138412032 [pid 8255] close(3executing program ) = 0 [pid 8255] write(1, "executing program\n", 18) = 18 [pid 8255] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8255] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8255] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8193] <... munmap resumed>) = 0 [pid 8255] <... mprotect resumed>) = 0 [ 299.942715][ T8192] BTRFS info (device loop0): last unmount of filesystem e9c65747-8c58-4a5b-8edc-cf82c3d49c09 [pid 8255] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8192] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8193] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8255] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8192] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8193] <... openat resumed>) = 5 [pid 8192] <... openat resumed>) = 4 [pid 8193] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8192] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 8262 attached [pid 8262] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8193] ioctl(5, LOOP_CLR_FD [pid 8192] <... ioctl resumed>) = 0 [pid 8255] <... clone3 resumed> => {parent_tid=[8262]}, 88) = 8262 [pid 8193] <... ioctl resumed>) = 0 [pid 8192] close(4 [pid 8262] <... rseq resumed>) = 0 [pid 8255] rt_sigprocmask(SIG_SETMASK, [], [pid 8192] <... close resumed>) = 0 [pid 8193] ioctl(5, LOOP_SET_FD, 4 [pid 8192] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8193] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 8193] close(5 [pid 8192] <... futex resumed>) = 1 [pid 8157] <... futex resumed>) = 0 [pid 8193] <... close resumed>) = 0 [pid 8262] set_robust_list(0x7ff7dbc929a0, 24 [pid 8255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8193] close(4 [pid 8192] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8157] exit_group(0 [pid 8159] <... futex resumed>) = ? [pid 8157] <... exit_group resumed>) = ? [pid 8192] <... futex resumed>) = ? [pid 8262] <... set_robust_list resumed>) = 0 [pid 8255] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8262] rt_sigprocmask(SIG_SETMASK, [], [pid 8255] <... futex resumed>) = 0 [pid 8262] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8255] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8192] +++ exited with 0 +++ [pid 8159] +++ exited with 0 +++ [pid 8157] +++ exited with 0 +++ [pid 8262] memfd_create("syzkaller", 0) = 3 [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8157, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=73 /* 0.73 s */} --- [ 300.021300][ T8194] BTRFS info (device loop1): rebuilding free space tree [pid 8262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 8262] <... mmap resumed>) = 0x7ff7d3800000 [pid 5843] <... restart_syscall resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8263 attached [pid 8263] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 8263 [pid 8263] <... set_robust_list resumed>) = 0 [pid 8263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8263] setpgid(0, 0) = 0 [pid 8263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8263] write(3, "1000", 4) = 4 [pid 8263] close(3) = 0 executing program [pid 8263] write(1, "executing program\n", 18) = 18 [pid 8263] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8263] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8263] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8263] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8264 attached [pid 8264] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8263] <... clone3 resumed> => {parent_tid=[8264]}, 88) = 8264 [ 300.139455][ T8194] BTRFS info (device loop1): disabling free space tree [pid 8264] <... rseq resumed>) = 0 [pid 8263] rt_sigprocmask(SIG_SETMASK, [], [pid 8264] set_robust_list(0x7ff7dbc929a0, 24 [pid 8263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8244] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8263] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8264] <... set_robust_list resumed>) = 0 [pid 8263] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8264] memfd_create("syzkaller", 0) = 3 [pid 8264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 300.188022][ T8194] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 300.227724][ T8194] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 300.339024][ T8194] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8193] <... close resumed>) = 0 [pid 8193] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8174] <... futex resumed>) = 0 [pid 8174] exit_group(0) = ? [pid 8175] <... futex resumed>) = ? [pid 8175] +++ exited with 0 +++ [pid 8194] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8193] +++ exited with 0 +++ [pid 8174] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8174, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=58 /* 0.58 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 8194] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5845] <... restart_syscall resumed>) = 0 [pid 8194] <... openat resumed>) = 4 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8194] ioctl(4, LOOP_CLR_FD [pid 5845] <... openat resumed>) = 3 [pid 8194] <... ioctl resumed>) = 0 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 8194] close(4 [pid 5845] <... ioctl resumed>) = 0 [pid 8194] <... close resumed>) = 0 [pid 8194] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8194] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8156] <... futex resumed>) = 0 [pid 5845] close(3) = 0 [pid 8156] exit_group(0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8194] <... futex resumed>) = ? [pid 8158] <... futex resumed>) = ? [pid 8156] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 8265 attached [pid 8194] +++ exited with 0 +++ [pid 8158] +++ exited with 0 +++ [pid 8156] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8265 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8156, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=81 /* 0.81 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8265] set_robust_list(0x5555693e0760, 24 [pid 5844] <... openat resumed>) = 3 [pid 8265] <... set_robust_list resumed>) = 0 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 8265] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... ioctl resumed>) = 0 [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8266 attached , child_tidptr=0x5555693e0750) = 8266 executing program [pid 8266] set_robust_list(0x5555693e0760, 24 [pid 8265] <... prctl resumed>) = 0 [pid 8266] <... set_robust_list resumed>) = 0 [pid 8265] setpgid(0, 0 [pid 8266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8265] <... setpgid resumed>) = 0 [pid 8265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8266] <... prctl resumed>) = 0 [pid 8265] write(3, "1000", 4 [pid 8266] setpgid(0, 0 [pid 8265] <... write resumed>) = 4 [pid 8266] <... setpgid resumed>) = 0 [pid 8265] close(3 [pid 8266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8265] <... close resumed>) = 0 [pid 8265] write(1, "executing program\n", 18) = 18 [pid 8265] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8265] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8266] <... openat resumed>) = 3 [pid 8265] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8266] write(3, "1000", 4 [pid 8265] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8266] <... write resumed>) = 4 [pid 8265] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8266] close(3 [pid 8265] <... mprotect resumed>) = 0 [pid 8266] <... close resumed>) = 0 [pid 8265] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8266] write(1, "executing program\n", 18executing program [pid 8265] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8266] <... write resumed>) = 18 [pid 8265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8266] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8265] <... clone3 resumed> => {parent_tid=[8267]}, 88) = 8267 ./strace-static-x86_64: Process 8267 attached [pid 8266] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8265] rt_sigprocmask(SIG_SETMASK, [], [pid 8266] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8265] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8266] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8265] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8265] <... futex resumed>) = 0 [pid 8266] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8265] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8266] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8267] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8266] <... mprotect resumed>) = 0 [pid 8266] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8267] <... rseq resumed>) = 0 [pid 8266] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8267] set_robust_list(0x7ff7dbc929a0, 24 [pid 8266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8267] <... set_robust_list resumed>) = 0 [pid 8266] <... clone3 resumed> => {parent_tid=[8268]}, 88) = 8268 [pid 8266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8266] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 8268 attached [pid 8267] rt_sigprocmask(SIG_SETMASK, [], [pid 8266] <... futex resumed>) = 0 [pid 8267] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8266] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8267] memfd_create("syzkaller", 0 [pid 8268] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8267] <... memfd_create resumed>) = 3 [pid 8268] <... rseq resumed>) = 0 [pid 8268] set_robust_list(0x7ff7dbc929a0, 24 [pid 8267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8268] <... set_robust_list resumed>) = 0 [pid 8268] rt_sigprocmask(SIG_SETMASK, [], [pid 8267] <... mmap resumed>) = 0x7ff7d3800000 [pid 8268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8268] memfd_create("syzkaller", 0) = 3 [pid 8268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8244] <... write resumed>) = 16777216 [pid 8244] munmap(0x7ff7d3800000, 138412032 [pid 8262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8244] <... munmap resumed>) = 0 [pid 8244] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8244] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8244] close(3) = 0 [pid 8244] close(4) = 0 [pid 8244] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 300.728398][ T8244] loop3: detected capacity change from 0 to 32768 [pid 8244] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 300.899966][ T8244] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 300.948593][ T8244] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8244] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8244] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 8244] ioctl(3, LOOP_CLR_FD) = 0 [ 301.118362][ T8244] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8244] close(3 [pid 8264] <... write resumed>) = 16777216 [pid 8264] munmap(0x7ff7d3800000, 138412032 [pid 8262] <... write resumed>) = 16777216 [pid 8264] <... munmap resumed>) = 0 [pid 8264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8264] ioctl(4, LOOP_SET_FD, 3 [pid 8262] munmap(0x7ff7d3800000, 138412032 [pid 8268] <... write resumed>) = 16777216 [pid 8262] <... munmap resumed>) = 0 [pid 8268] munmap(0x7ff7d3800000, 138412032 [pid 8264] <... ioctl resumed>) = 0 [pid 8264] close(3) = 0 [pid 8264] close(4 [pid 8262] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8264] <... close resumed>) = 0 [pid 8264] mkdir("./file1", 0777 [pid 8268] <... munmap resumed>) = 0 [pid 8268] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8264] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8262] <... openat resumed>) = 4 [ 301.348028][ T8264] loop0: detected capacity change from 0 to 32768 [pid 8262] ioctl(4, LOOP_SET_FD, 3 [pid 8268] <... openat resumed>) = 4 [pid 8264] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8262] <... ioctl resumed>) = 0 [pid 8268] ioctl(4, LOOP_SET_FD, 3 [pid 8262] close(3) = 0 [pid 8262] close(4) = 0 [pid 8262] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8262] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8268] <... ioctl resumed>) = 0 [pid 8268] close(3) = 0 [pid 8268] close(4) = 0 [pid 8268] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8244] <... close resumed>) = 0 [pid 8268] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8244] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8242] <... futex resumed>) = 0 [pid 8242] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8242] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8244] creat("./bus", 000) = 3 [pid 8244] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8242] <... futex resumed>) = 0 [pid 8242] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8242] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8244] <... futex resumed>) = 1 [ 301.400800][ T8262] loop4: detected capacity change from 0 to 32768 [ 301.411074][ T8268] loop1: detected capacity change from 0 to 32768 [pid 8244] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8242] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8242] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 8242] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8242] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8242] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8242] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8282 attached [pid 8282] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8282] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8242] <... clone3 resumed> => {parent_tid=[8282]}, 88) = 8282 [pid 8282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8242] rt_sigprocmask(SIG_SETMASK, [], [pid 8282] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8242] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8242] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8282] <... futex resumed>) = 0 [pid 8242] <... futex resumed>) = 1 [pid 8282] memfd_create("syzkaller", 0) = 4 [pid 8242] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8267] <... write resumed>) = 16777216 [pid 8267] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8267] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8267] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8267] ioctl(4, LOOP_CLR_FD) = 0 [pid 8267] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8267] close(4) = 0 [ 301.611792][ T8264] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8267] close(3 [ 301.687790][ T8264] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 301.691611][ T8262] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 301.705122][ T8262] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 301.742982][ T8268] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 301.817942][ T8268] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8282] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8264] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 8264] ioctl(3, LOOP_CLR_FD) = 0 [ 301.915373][ T8264] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8264] close(3 [pid 8267] <... close resumed>) = 0 [pid 8267] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8267] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8265] <... futex resumed>) = 0 [pid 8262] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8265] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8262] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8265] <... futex resumed>) = 0 [pid 8265] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8262] <... openat resumed>) = 3 [pid 8262] ioctl(3, LOOP_CLR_FD [pid 8267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8262] <... ioctl resumed>) = 0 [pid 8267] creat("./bus", 000 [ 302.002456][ T8262] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8262] close(3 [pid 8265] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8265] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8265] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8265] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8298 attached [pid 8268] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8268] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8265] <... clone3 resumed> => {parent_tid=[8298]}, 88) = 8298 [pid 8298] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8268] <... openat resumed>) = 3 [pid 8265] rt_sigprocmask(SIG_SETMASK, [], [pid 8298] set_robust_list(0x7ff7dbc719a0, 24 [pid 8268] ioctl(3, LOOP_CLR_FD [pid 8298] <... set_robust_list resumed>) = 0 [pid 8268] <... ioctl resumed>) = 0 [pid 8298] rt_sigprocmask(SIG_SETMASK, [], [pid 8265] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8268] close(3 [pid 8298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8265] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8265] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 302.119587][ T8268] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8298] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8298] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8298] <... futex resumed>) = 0 [pid 8265] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8298] memfd_create("syzkaller", 0 [pid 8265] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8298] <... memfd_create resumed>) = 4 [pid 8298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8282] <... write resumed>) = 16777216 [pid 8282] munmap(0x7ff7d3800000, 138412032 [pid 8264] <... close resumed>) = 0 [pid 8264] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8263] <... futex resumed>) = 0 [pid 8263] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8264] creat("./bus", 000 [pid 8263] <... futex resumed>) = 0 [pid 8263] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8282] <... munmap resumed>) = 0 [pid 8262] <... close resumed>) = 0 [pid 8282] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 8282] ioctl(5, LOOP_SET_FD, 4 [pid 8262] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8255] <... futex resumed>) = 0 [pid 8255] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8262] creat("./bus", 000 [pid 8255] <... futex resumed>) = 0 [pid 8255] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8282] <... ioctl resumed>) = 0 [pid 8282] close(4) = 0 [pid 8282] close(5) = 0 [pid 8263] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8282] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8282] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8263] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8263] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 8255] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8263] <... mprotect resumed>) = 0 [pid 8255] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8263] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8255] <... futex resumed>) = 0 [pid 8263] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 8255] <... mmap resumed>) = 0x7ff7dbc51000 ./strace-static-x86_64: Process 8299 attached [pid 8299] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8263] <... clone3 resumed> => {parent_tid=[8299]}, 88) = 8299 [pid 8299] <... rseq resumed>) = 0 [pid 8255] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 8299] set_robust_list(0x7ff7dbc719a0, 24 [pid 8263] rt_sigprocmask(SIG_SETMASK, [], [pid 8299] <... set_robust_list resumed>) = 0 [pid 8263] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8255] <... mprotect resumed>) = 0 [pid 8299] rt_sigprocmask(SIG_SETMASK, [], [pid 8263] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8299] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8299] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 302.356216][ T8282] loop3: detected capacity change from 0 to 32768 [ 302.378668][ T8282] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8282) [pid 8299] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 8268] <... close resumed>) = 0 [pid 8263] <... futex resumed>) = 1 [pid 8255] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8299] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8268] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8255] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8263] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 8268] <... futex resumed>) = 1 [pid 8263] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8263] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 8300 attached [pid 8299] <... futex resumed>) = 0 [pid 8268] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8266] <... futex resumed>) = 0 [pid 8263] <... futex resumed>) = 1 [pid 8299] memfd_create("syzkaller", 0 [pid 8268] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8266] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8255] <... clone3 resumed> => {parent_tid=[8300]}, 88) = 8300 [pid 8300] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8299] <... memfd_create resumed>) = 4 [pid 8268] creat("./bus", 000 [pid 8266] <... futex resumed>) = 0 [pid 8263] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8255] rt_sigprocmask(SIG_SETMASK, [], [pid 8300] <... rseq resumed>) = 0 [pid 8299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8266] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8300] set_robust_list(0x7ff7dbc719a0, 24 [pid 8299] <... mmap resumed>) = 0x7ff7d3800000 [pid 8300] <... set_robust_list resumed>) = 0 [pid 8255] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8255] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 302.428971][ T8282] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8300] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8300] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8255] <... futex resumed>) = 0 [pid 8300] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 8255] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8300] memfd_create("syzkaller", 0 [pid 8255] <... futex resumed>) = 0 [pid 8300] <... memfd_create resumed>) = 4 [pid 8255] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8244] <... write resumed>) = 16776704 [pid 8244] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8244] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8266] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 302.472730][ T8282] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 8266] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8266] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8266] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8314 attached => {parent_tid=[8314]}, 88) = 8314 [pid 8266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8314] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8298] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8266] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8314] <... rseq resumed>) = 0 [pid 8266] <... futex resumed>) = 0 [pid 8314] set_robust_list(0x7ff7dbc719a0, 24 [pid 8266] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8314] <... set_robust_list resumed>) = 0 [pid 8314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8314] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8314] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8266] <... futex resumed>) = 0 [pid 8314] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8266] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8266] <... futex resumed>) = 0 [pid 8314] memfd_create("syzkaller", 0 [pid 8266] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8314] <... memfd_create resumed>) = 4 [pid 8314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 302.638393][ T8282] BTRFS info (device loop3): rebuilding free space tree [ 302.678717][ T8282] BTRFS info (device loop3): disabling free space tree [ 302.685702][ T8282] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 302.726922][ T8282] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8314] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8299] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8268] <... creat resumed>) = 3 [pid 8267] <... creat resumed>) = 3 [pid 8264] <... creat resumed>) = 3 [pid 8262] <... creat resumed>) = 3 [pid 8268] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8267] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8264] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8262] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8268] <... futex resumed>) = 0 [pid 8267] <... futex resumed>) = 0 [pid 8264] <... futex resumed>) = 0 [pid 8262] <... futex resumed>) = 0 [pid 8268] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8267] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8264] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8262] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 303.002136][ T8282] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8300] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8282] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8282] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8282] ioctl(4, LOOP_CLR_FD) = 0 [pid 8282] close(4 [pid 8298] <... write resumed>) = 16777216 [pid 8298] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8298] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 8298] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8298] ioctl(5, LOOP_CLR_FD) = 0 [pid 8298] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8298] close(5) = 0 [pid 8298] close(4 [pid 8314] <... write resumed>) = 16777216 [pid 8282] <... close resumed>) = 0 [pid 8314] munmap(0x7ff7d3800000, 138412032 [pid 8282] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8282] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8314] <... munmap resumed>) = 0 [pid 8242] <... futex resumed>) = 0 [pid 8314] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8242] exit_group(0 [pid 8314] <... openat resumed>) = 5 [pid 8282] <... futex resumed>) = ? [pid 8244] <... futex resumed>) = ? [pid 8242] <... exit_group resumed>) = ? [pid 8314] ioctl(5, LOOP_SET_FD, 4 [pid 8282] +++ exited with 0 +++ [pid 8244] +++ exited with 0 +++ [pid 8299] <... write resumed>) = 16777216 [pid 8314] <... ioctl resumed>) = 0 [pid 8314] close(4) = 0 [pid 8314] close(5 [pid 8299] munmap(0x7ff7d3800000, 138412032 [pid 8242] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8242, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=126 /* 1.26 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 8314] <... close resumed>) = 0 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8314] mkdir("./bus", 0777 [ 303.435638][ T8314] loop1: detected capacity change from 0 to 32768 [pid 5847] close(3 [pid 8314] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5847] <... close resumed>) = 0 [pid 8314] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8318 attached [pid 8299] <... munmap resumed>) = 0 [pid 8298] <... close resumed>) = 0 [pid 8299] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8298] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8318] set_robust_list(0x5555693e0760, 24 [pid 8299] <... openat resumed>) = 5 [pid 8298] <... futex resumed>) = 1 [pid 8265] <... futex resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 8318 [pid 8299] ioctl(5, LOOP_SET_FD, 4 [pid 8298] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8265] exit_group(0 [pid 8298] <... futex resumed>) = ? [pid 8267] <... futex resumed>) = ? [pid 8265] <... exit_group resumed>) = ? [pid 8267] +++ exited with 0 +++ [pid 8318] <... set_robust_list resumed>) = 0 [pid 8299] <... ioctl resumed>) = 0 [pid 8298] +++ exited with 0 +++ [pid 8265] +++ exited with 0 +++ [pid 8318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8299] close(4 [pid 8318] <... prctl resumed>) = 0 [pid 8299] <... close resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8265, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=81 /* 0.81 s */} --- [pid 8318] setpgid(0, 0 [pid 8299] close(5 [pid 8318] <... setpgid resumed>) = 0 [pid 8299] <... close resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 8318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8299] mkdir("./bus", 0777 [pid 8318] <... openat resumed>) = 3 [pid 8299] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8318] write(3, "1000", 4 [pid 8299] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8318] <... write resumed>) = 4 [pid 8318] close(3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 8318] <... close resumed>) = 0 [pid 8300] <... write resumed>) = 16777216 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 303.475755][ T8314] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8314) [ 303.492297][ T8299] loop0: detected capacity change from 0 to 32768 [pid 5845] ioctl(3, LOOP_CLR_FDexecuting program [pid 8318] write(1, "executing program\n", 18 [pid 8300] munmap(0x7ff7d3800000, 138412032 [pid 8318] <... write resumed>) = 18 [pid 5845] <... ioctl resumed>) = 0 [pid 8318] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8318] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8318] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8318] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8300] <... munmap resumed>) = 0 [pid 8318] <... mprotect resumed>) = 0 [pid 8318] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5845] close(3 [pid 8300] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5845] <... close resumed>) = 0 [pid 8300] <... openat resumed>) = 5 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8318] <... rt_sigprocmask resumed>[], 8) = 0 [ 303.526939][ T8299] BTRFS: device /dev/loop0 (7:0) using temp-fsid 78a70623-449b-47b3-9743-ac4daea856ee [ 303.539778][ T8314] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 303.561681][ T8314] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 8300] ioctl(5, LOOP_SET_FD, 4 [pid 8318] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8300] <... ioctl resumed>) = 0 [pid 8318] <... clone3 resumed> => {parent_tid=[8320]}, 88) = 8320 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8319 [pid 8318] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8318] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8318] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8320 attached ./strace-static-x86_64: Process 8319 attached executing program [pid 8320] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8319] set_robust_list(0x5555693e0760, 24 [pid 8320] <... rseq resumed>) = 0 [pid 8320] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8319] <... set_robust_list resumed>) = 0 [pid 8320] rt_sigprocmask(SIG_SETMASK, [], [pid 8319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8320] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8320] memfd_create("syzkaller", 0 [pid 8319] <... prctl resumed>) = 0 [pid 8319] setpgid(0, 0) = 0 [pid 8319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8320] <... memfd_create resumed>) = 3 [pid 8320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8319] <... openat resumed>) = 3 [pid 8319] write(3, "1000", 4) = 4 [pid 8319] close(3) = 0 [pid 8319] write(1, "executing program\n", 18) = 18 [pid 8300] close(4 [pid 8319] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8300] <... close resumed>) = 0 [pid 8319] <... futex resumed>) = 0 [pid 8300] close(5 [pid 8319] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8300] <... close resumed>) = 0 [pid 8319] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8300] mkdir("./bus", 0777 [pid 8319] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8300] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8300] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8319] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8319] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8319] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8324]}, 88) = 8324 [pid 8319] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 8324 attached [pid 8324] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8319] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8319] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8324] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8324] memfd_create("syzkaller", 0) = 3 [pid 8324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 303.580041][ T8300] loop4: detected capacity change from 0 to 32768 [ 303.593173][ T8299] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8299) [ 303.638265][ T8299] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 303.638503][ T8300] BTRFS: device /dev/loop4 (7:4) using temp-fsid 6c35d51d-eedb-4e53-89bc-00c761ab79fd [ 303.681222][ T8299] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 303.709105][ T8300] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8300) [ 303.785366][ T8300] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 303.798048][ T8300] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 303.858101][ T8314] BTRFS info (device loop1): rebuilding free space tree [ 303.922291][ T8314] BTRFS info (device loop1): disabling free space tree [ 303.959112][ T8314] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 303.969429][ T8314] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8314] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 304.022933][ T8314] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 304.050455][ T8300] BTRFS info (device loop4): rebuilding free space tree [ 304.061818][ T8299] BTRFS info (device loop0): rebuilding free space tree [pid 8314] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8314] ioctl(4, LOOP_CLR_FD) = 0 [ 304.119688][ T8300] BTRFS info (device loop4): disabling free space tree [ 304.139826][ T8299] BTRFS info (device loop0): disabling free space tree [ 304.157771][ T8300] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8314] close(4 [ 304.177718][ T8300] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 304.187929][ T8299] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 304.187965][ T8299] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8320] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8299] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 304.237217][ T8299] BTRFS info (device loop0): last unmount of filesystem 78a70623-449b-47b3-9743-ac4daea856ee [ 304.259144][ T8300] BTRFS info (device loop4): last unmount of filesystem 6c35d51d-eedb-4e53-89bc-00c761ab79fd [pid 8299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8299] ioctl(4, LOOP_CLR_FD) = 0 [pid 8299] close(4 [pid 8300] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8300] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8314] <... close resumed>) = 0 [pid 8300] <... openat resumed>) = 4 [pid 8314] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8314] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8300] ioctl(4, LOOP_CLR_FD [pid 8266] <... futex resumed>) = 0 [pid 8266] exit_group(0) = ? [pid 8314] <... futex resumed>) = ? [pid 8300] <... ioctl resumed>) = 0 [pid 8268] <... futex resumed>) = ? [pid 8314] +++ exited with 0 +++ [pid 8300] close(4 [pid 8268] +++ exited with 0 +++ [pid 8266] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8266, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=85 /* 0.85 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8370 attached [pid 8370] set_robust_list(0x5555693e0760, 24 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 8370 [pid 8370] <... set_robust_list resumed>) = 0 [pid 8370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8370] setpgid(0, 0) = 0 [pid 8370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8370] write(3, "1000", 4) = 4 [pid 8370] close(3) = 0 [pid 8370] write(1, "executing program\n", 18executing program ) = 18 [pid 8370] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8370] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8370] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8370] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8371 attached [pid 8371] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8370] <... clone3 resumed> => {parent_tid=[8371]}, 88) = 8371 [pid 8371] <... rseq resumed>) = 0 [pid 8370] rt_sigprocmask(SIG_SETMASK, [], [pid 8371] set_robust_list(0x7ff7dbc929a0, 24 [pid 8370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8371] <... set_robust_list resumed>) = 0 [pid 8370] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8371] rt_sigprocmask(SIG_SETMASK, [], [pid 8370] <... futex resumed>) = 0 [pid 8371] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8370] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8371] memfd_create("syzkaller", 0) = 3 [pid 8371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8299] <... close resumed>) = 0 [pid 8299] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8263] <... futex resumed>) = 0 [pid 8263] exit_group(0 [pid 8264] <... futex resumed>) = ? [pid 8263] <... exit_group resumed>) = ? [pid 8264] +++ exited with 0 +++ [pid 8299] +++ exited with 0 +++ [pid 8263] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8263, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=93 /* 0.93 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8372 ./strace-static-x86_64: Process 8372 attached [pid 8372] set_robust_list(0x5555693e0760, 24) = 0 [pid 8372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8372] setpgid(0, 0) = 0 [pid 8372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8320] <... write resumed>) = 16777216 [pid 8372] write(3, "1000", 4 [pid 8320] munmap(0x7ff7d3800000, 138412032 [pid 8372] <... write resumed>) = 4 [pid 8372] close(3) = 0 executing program [pid 8372] write(1, "executing program\n", 18) = 18 [pid 8372] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8372] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8300] <... close resumed>) = 0 [pid 8372] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8372] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8320] <... munmap resumed>) = 0 [pid 8372] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8324] <... write resumed>) = 16777216 [pid 8300] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8372] <... mprotect resumed>) = 0 [pid 8372] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8372] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8373 attached [pid 8324] munmap(0x7ff7d3800000, 138412032 [pid 8300] <... futex resumed>) = 1 [pid 8255] <... futex resumed>) = 0 [pid 8373] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8372] <... clone3 resumed> => {parent_tid=[8373]}, 88) = 8373 [pid 8373] <... rseq resumed>) = 0 [pid 8372] rt_sigprocmask(SIG_SETMASK, [], [pid 8373] set_robust_list(0x7ff7dbc929a0, 24 [pid 8372] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8373] <... set_robust_list resumed>) = 0 [pid 8372] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8373] rt_sigprocmask(SIG_SETMASK, [], [pid 8372] <... futex resumed>) = 0 [pid 8373] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8372] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8373] memfd_create("syzkaller", 0 [pid 8255] exit_group(0 [pid 8373] <... memfd_create resumed>) = 3 [pid 8320] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8262] <... futex resumed>) = ? [pid 8255] <... exit_group resumed>) = ? [pid 8373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8320] <... openat resumed>) = 4 [pid 8300] +++ exited with 0 +++ [pid 8262] +++ exited with 0 +++ [pid 8255] +++ exited with 0 +++ [pid 8320] ioctl(4, LOOP_SET_FD, 3 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8255, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=84 /* 0.84 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 8324] <... munmap resumed>) = 0 [pid 5850] <... restart_syscall resumed>) = 0 [pid 8324] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 8324] <... openat resumed>) = 4 [pid 5850] close(3 [pid 8324] ioctl(4, LOOP_SET_FD, 3 [pid 8320] <... ioctl resumed>) = 0 [pid 5850] <... close resumed>) = 0 [pid 8320] close(3 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8320] <... close resumed>) = 0 [pid 8324] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 8320] close(4./strace-static-x86_64: Process 8374 attached [pid 8324] ioctl(4, LOOP_CLR_FD [pid 8320] <... close resumed>) = 0 [pid 8374] set_robust_list(0x5555693e0760, 24 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 8374 [pid 8374] <... set_robust_list resumed>) = 0 [pid 8324] <... ioctl resumed>) = 0 [pid 8320] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8320] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8374] setpgid(0, 0) = 0 [ 304.773370][ T8320] loop3: detected capacity change from 0 to 32768 [pid 8374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8324] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8374] <... openat resumed>) = 3 [pid 8324] close(4) = 0 [pid 8324] close(3executing program [pid 8374] write(3, "1000", 4) = 4 [pid 8374] close(3) = 0 [pid 8374] write(1, "executing program\n", 18) = 18 [pid 8374] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8374] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8374] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8374] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8374] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8380 attached => {parent_tid=[8380]}, 88) = 8380 [pid 8374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8374] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8374] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8380] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8380] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8380] memfd_create("syzkaller", 0) = 3 [pid 8380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 304.915666][ T8320] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 304.931286][ T8320] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8324] <... close resumed>) = 0 [pid 8324] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8319] <... futex resumed>) = 0 [pid 8319] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8319] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8324] creat("./bus", 000) = 3 [pid 8324] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8319] <... futex resumed>) = 0 [pid 8319] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8319] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8324] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8320] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8320] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8319] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8319] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8319] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8319] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8319] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8383]}, 88) = 8383 [pid 8320] <... openat resumed>) = 3 [pid 8319] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8319] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 8383 attached ) = 0 [pid 8319] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8383] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8320] ioctl(3, LOOP_CLR_FD) = 0 [ 305.213390][ T8320] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8320] close(3 [pid 8383] <... rseq resumed>) = 0 [pid 8383] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8383] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8383] memfd_create("syzkaller", 0 [pid 8373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8383] <... memfd_create resumed>) = 4 [pid 8383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8371] <... write resumed>) = 16777216 [pid 8371] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8371] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8371] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8380] <... write resumed>) = 16777216 [pid 8371] close(3) = 0 [pid 8371] close(4) = 0 [pid 8371] mkdir("./file1", 0777 [pid 8380] munmap(0x7ff7d3800000, 138412032 [pid 8371] <... mkdir resumed>) = -1 EEXIST (File exists) [ 305.473927][ T8371] loop1: detected capacity change from 0 to 32768 [pid 8371] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8320] <... close resumed>) = 0 [pid 8380] <... munmap resumed>) = 0 [pid 8380] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8320] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8380] <... openat resumed>) = 4 [pid 8320] <... futex resumed>) = 1 [pid 8318] <... futex resumed>) = 0 [pid 8318] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8380] ioctl(4, LOOP_SET_FD, 3 [pid 8320] creat("./bus", 000 [pid 8318] <... futex resumed>) = 0 [pid 8318] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8380] <... ioctl resumed>) = 0 [pid 8380] close(3) = 0 [pid 8380] close(4) = 0 [pid 8380] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 305.573838][ T8380] loop4: detected capacity change from 0 to 32768 [pid 8380] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8318] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8318] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8318] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8318] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8318] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8394 attached [pid 8394] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8318] <... clone3 resumed> => {parent_tid=[8394]}, 88) = 8394 [pid 8318] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8318] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8318] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8394] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8394] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8394] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8318] <... futex resumed>) = 0 [pid 8394] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8318] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8318] <... futex resumed>) = 0 [ 305.652970][ T8371] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8394] memfd_create("syzkaller", 0 [pid 8318] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8394] <... memfd_create resumed>) = 4 [pid 8394] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 305.727959][ T8371] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 305.742540][ T8380] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8373] <... write resumed>) = 16777216 [pid 8373] munmap(0x7ff7d3800000, 138412032 [pid 8383] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8373] <... munmap resumed>) = 0 [pid 8324] <... write resumed>) = 16776704 [pid 8324] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8324] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 305.818592][ T8380] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8373] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8373] close(3) = 0 [pid 8373] close(4) = 0 [pid 8373] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 305.885565][ T8373] loop0: detected capacity change from 0 to 32768 [pid 8373] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8380] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8380] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 8380] ioctl(3, LOOP_CLR_FD [pid 8371] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8380] <... ioctl resumed>) = 0 [ 306.033151][ T8371] bcachefs: bch2_fs_get_tree() error: EINVAL [ 306.040416][ T8380] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8380] close(3 [pid 8371] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 8371] ioctl(3, LOOP_CLR_FD) = 0 [ 306.093796][ T8373] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8371] close(3 [pid 8380] <... close resumed>) = 0 [pid 8380] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8374] <... futex resumed>) = 0 [pid 8374] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8380] creat("./bus", 000 [ 306.196666][ T8373] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8374] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8394] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8374] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8374] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8374] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8374] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8406 attached => {parent_tid=[8406]}, 88) = 8406 [pid 8374] rt_sigprocmask(SIG_SETMASK, [], [pid 8406] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8374] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8320] <... creat resumed>) = 3 [pid 8406] <... rseq resumed>) = 0 [pid 8380] <... creat resumed>) = 3 [pid 8374] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8406] set_robust_list(0x7ff7dbc719a0, 24 [pid 8380] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8374] <... futex resumed>) = 0 [pid 8320] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8380] <... futex resumed>) = 0 [pid 8374] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8380] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8406] <... set_robust_list resumed>) = 0 [pid 8406] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8406] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8320] <... futex resumed>) = 0 [pid 8320] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8374] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8374] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8380] <... futex resumed>) = 0 [pid 8374] <... futex resumed>) = 1 [pid 8380] memfd_create("syzkaller", 0 [pid 8374] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8380] <... memfd_create resumed>) = 4 [pid 8380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8383] <... write resumed>) = 16777216 [pid 8383] munmap(0x7ff7d3800000, 138412032 [pid 8373] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 8373] ioctl(3, LOOP_CLR_FD) = 0 [pid 8373] close(3 [pid 8383] <... munmap resumed>) = 0 [pid 8371] <... close resumed>) = 0 [pid 8371] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8371] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8383] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8370] <... futex resumed>) = 0 [pid 8383] <... openat resumed>) = 5 [pid 8383] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8370] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8383] ioctl(5, LOOP_CLR_FD) = 0 [pid 8371] <... futex resumed>) = 0 [pid 8370] <... futex resumed>) = 1 [ 306.454971][ T8373] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8371] creat("./bus", 000 [pid 8370] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8383] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8383] close(5) = 0 [pid 8383] close(4 [pid 8370] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8370] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8370] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8370] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8407]}, 88) = 8407 [pid 8370] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 8407 attached NULL, 8) = 0 [pid 8370] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8370] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8407] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8407] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8407] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8407] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8370] <... futex resumed>) = 0 [pid 8370] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8370] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8407] memfd_create("syzkaller", 0) = 4 [pid 8407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8383] <... close resumed>) = 0 [pid 8383] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8319] <... futex resumed>) = 0 [pid 8383] <... futex resumed>) = 1 [pid 8319] exit_group(0 [pid 8383] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8319] <... exit_group resumed>) = ? [pid 8383] <... futex resumed>) = ? [pid 8324] <... futex resumed>) = ? [pid 8383] +++ exited with 0 +++ [pid 8394] <... write resumed>) = 16777216 [pid 8380] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8394] munmap(0x7ff7d3800000, 138412032 [pid 8373] <... close resumed>) = 0 [pid 8373] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8373] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8372] <... futex resumed>) = 0 [pid 8372] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8373] <... futex resumed>) = 0 [pid 8372] <... futex resumed>) = 1 [pid 8373] creat("./bus", 000 [pid 8372] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8394] <... munmap resumed>) = 0 [pid 8394] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 8394] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8394] close(4) = 0 [pid 8394] close(5) = 0 [pid 8394] mkdir("./bus", 0777 [pid 8372] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8394] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8372] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [ 306.867639][ T8394] loop3: detected capacity change from 0 to 32768 [pid 8394] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8372] <... futex resumed>) = 0 [pid 8372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8372] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8372] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8372] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8408]}, 88) = 8408 [pid 8372] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8372] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8372] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8408 attached [pid 8408] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8408] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8408] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8408] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8372] <... futex resumed>) = 0 [pid 8372] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8372] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8408] memfd_create("syzkaller", 0) = 4 [pid 8408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 306.909209][ T8394] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8394) [pid 8324] +++ exited with 0 +++ [pid 8319] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8319, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=114 /* 1.14 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8409 attached , child_tidptr=0x5555693e0750) = 8409 [pid 8409] set_robust_list(0x5555693e0760, 24) = 0 [ 306.983863][ T8394] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8407] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8409] <... prctl resumed>) = 0 [pid 8409] setpgid(0, 0) = 0 [pid 8409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8409] write(3, "1000", 4) = 4 [pid 8409] close(3) = 0 [pid 8409] write(1, "executing program\n", 18executing program ) = 18 [ 307.048220][ T8394] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 8409] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8409] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8409] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8409] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8419 attached => {parent_tid=[8419]}, 88) = 8419 [pid 8409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8419] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8409] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8409] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8419] <... rseq resumed>) = 0 [pid 8419] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8419] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8419] memfd_create("syzkaller", 0) = 3 [pid 8419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 307.162458][ T8394] BTRFS info (device loop3): rebuilding free space tree [ 307.249620][ T8394] BTRFS info (device loop3): disabling free space tree [ 307.256607][ T8394] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 307.318263][ T8394] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8380] <... write resumed>) = 16777216 [pid 8380] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8380] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 8380] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8380] close(4) = 0 [pid 8380] close(5) = 0 [pid 8380] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8380] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8406] <... write resumed>) = 16776704 [pid 8406] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 307.428084][ T8380] loop4: detected capacity change from 0 to 32768 [ 307.461031][ T8380] BTRFS: device /dev/loop4 (7:4) using temp-fsid 4c2a36cc-a153-46e8-8274-e6736d8348c9 [pid 8406] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 307.492240][ T8380] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8380) [ 307.531871][ T8380] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8408] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8407] <... write resumed>) = 16777216 [ 307.554047][ T8380] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 8407] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8407] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 8407] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8407] close(4) = 0 [pid 8407] close(5) = 0 [pid 8407] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 307.625882][ T8407] loop1: detected capacity change from 0 to 32768 [ 307.660592][ T8407] BTRFS: device /dev/loop1 (7:1) using temp-fsid 584cea47-d15d-4b11-9596-18577ba6fcfe [ 307.693120][ T8380] BTRFS info (device loop4): rebuilding free space tree [ 307.700765][ T8407] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8407) [pid 8407] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8371] <... creat resumed>) = 3 [ 307.744284][ T8380] BTRFS info (device loop4): disabling free space tree [ 307.777517][ T8394] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8371] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8371] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8373] <... creat resumed>) = 3 [pid 8373] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 307.778112][ T8380] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 307.803456][ T8380] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 307.808425][ T8407] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 307.870494][ T8380] BTRFS info (device loop4): last unmount of filesystem 4c2a36cc-a153-46e8-8274-e6736d8348c9 [ 307.886116][ T8407] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 8373] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8394] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8394] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8394] ioctl(4, LOOP_CLR_FD) = 0 [pid 8394] close(4 [pid 8380] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8380] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8380] ioctl(4, LOOP_CLR_FD) = 0 [ 308.156875][ T8407] BTRFS info (device loop1): rebuilding free space tree [pid 8380] close(4 [pid 8394] <... close resumed>) = 0 [pid 8419] <... write resumed>) = 16777216 [pid 8408] <... write resumed>) = 16777216 [pid 8408] munmap(0x7ff7d3800000, 138412032 [pid 8394] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8318] <... futex resumed>) = 0 [pid 8394] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8318] exit_group(0 [pid 8419] munmap(0x7ff7d3800000, 138412032 [pid 8320] <... futex resumed>) = ? [pid 8318] <... exit_group resumed>) = ? [pid 8320] +++ exited with 0 +++ [pid 8394] <... futex resumed>) = ? [pid 8394] +++ exited with 0 +++ [pid 8318] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8318, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=94 /* 0.94 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8459 ./strace-static-x86_64: Process 8459 attached [pid 8459] set_robust_list(0x5555693e0760, 24) = 0 [ 308.220575][ T8407] BTRFS info (device loop1): disabling free space tree [ 308.227620][ T8407] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8408] <... munmap resumed>) = 0 [pid 8459] <... prctl resumed>) = 0 [pid 8459] setpgid(0, 0) = 0 [pid 8408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 8459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8459] write(3, "1000", 4 [pid 8419] <... munmap resumed>) = 0 [pid 8459] <... write resumed>) = 4 [pid 8459] close(3 [pid 8408] ioctl(5, LOOP_SET_FD, 4 [pid 8459] <... close resumed>) = 0 executing program [pid 8459] write(1, "executing program\n", 18 [pid 8419] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8419] ioctl(4, LOOP_SET_FD, 3 [pid 8459] <... write resumed>) = 18 [pid 8419] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 8408] <... ioctl resumed>) = 0 [pid 8380] <... close resumed>) = 0 [pid 8408] close(4 [pid 8380] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8408] <... close resumed>) = 0 [pid 8380] <... futex resumed>) = 1 [pid 8374] <... futex resumed>) = 0 [pid 8419] ioctl(4, LOOP_CLR_FD [pid 8408] close(5 [pid 8380] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8419] <... ioctl resumed>) = 0 [pid 8408] <... close resumed>) = 0 [pid 8374] exit_group(0 [pid 8459] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8374] <... exit_group resumed>) = ? [pid 8459] <... futex resumed>) = 0 [pid 8406] <... futex resumed>) = ? [pid 8380] <... futex resumed>) = ? [pid 8459] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8408] mkdir("./bus", 0777 [pid 8406] +++ exited with 0 +++ [pid 8408] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8408] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8419] close(4 [pid 8459] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8419] <... close resumed>) = 0 [pid 8459] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [ 308.290481][ T8408] loop0: detected capacity change from 0 to 32768 [ 308.301967][ T8407] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8459] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8459] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8459] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8460]}, 88) = 8460 ./strace-static-x86_64: Process 8460 attached [pid 8459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8460] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8459] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8419] close(3 [pid 8460] <... rseq resumed>) = 0 [pid 8459] <... futex resumed>) = 0 [pid 8460] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8459] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8460] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8460] memfd_create("syzkaller", 0) = 3 [pid 8460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8380] +++ exited with 0 +++ [pid 8374] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8374, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=125 /* 1.25 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8461 attached , child_tidptr=0x5555693e0750) = 8461 [pid 8461] set_robust_list(0x5555693e0760, 24) = 0 [pid 8461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8461] setpgid(0, 0) = 0 [ 308.342370][ T8408] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8408) [ 308.381878][ T8407] BTRFS info (device loop1): last unmount of filesystem 584cea47-d15d-4b11-9596-18577ba6fcfe [pid 8461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8461] write(3, "1000", 4) = 4 [pid 8461] close(3) = 0 executing program [pid 8461] write(1, "executing program\n", 18) = 18 [pid 8461] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8461] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8461] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8461] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8461] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8461] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8463]}, 88) = 8463 [pid 8461] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 8463 attached [pid 8461] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8461] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8463] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8463] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8463] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 308.415504][ T8408] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8463] memfd_create("syzkaller", 0) = 3 [pid 8463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 308.477562][ T8408] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 8407] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8407] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8407] ioctl(4, LOOP_CLR_FD) = 0 [pid 8407] close(4 [pid 8460] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8419] <... close resumed>) = 0 [pid 8407] <... close resumed>) = 0 [pid 8419] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8409] <... futex resumed>) = 0 [pid 8409] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8419] creat("./bus", 000) = 3 [pid 8419] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8419] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 8409] <... futex resumed>) = 1 [pid 8409] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8407] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8419] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8407] <... futex resumed>) = 1 [pid 8370] <... futex resumed>) = 0 [pid 8409] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8407] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [ 308.776318][ T8408] BTRFS info (device loop0): rebuilding free space tree [ 308.804715][ T8408] BTRFS info (device loop0): disabling free space tree [ 308.813480][ T8408] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8370] exit_group(0 [pid 8419] <... futex resumed>) = 0 [pid 8409] <... futex resumed>) = 1 [pid 8407] <... futex resumed>) = ? [pid 8371] <... futex resumed>) = ? [pid 8370] <... exit_group resumed>) = ? [pid 8419] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8371] +++ exited with 0 +++ [pid 8409] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8407] +++ exited with 0 +++ [pid 8370] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8370, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=96 /* 0.96 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 308.824439][ T8408] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8479 ./strace-static-x86_64: Process 8479 attached [pid 8409] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8409] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8479] set_robust_list(0x5555693e0760, 24) = 0 [pid 8479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8409] <... mmap resumed>) = 0x7ff7dbc51000 [pid 8479] setpgid(0, 0 [pid 8409] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 8479] <... setpgid resumed>) = 0 [pid 8409] <... mprotect resumed>) = 0 [pid 8479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8409] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8479] <... openat resumed>) = 3 [pid 8409] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 8463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 8480 attached [pid 8409] <... clone3 resumed> => {parent_tid=[8480]}, 88) = 8480 [pid 8480] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8480] <... rseq resumed>) = 0 [pid 8479] write(3, "1000", 4 [pid 8409] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8479] <... write resumed>) = 4 [pid 8480] set_robust_list(0x7ff7dbc719a0, 24 [pid 8479] close(3 [pid 8409] <... futex resumed>) = 0 [pid 8409] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8479] <... close resumed>) = 0 [pid 8480] <... set_robust_list resumed>) = 0 [pid 8479] write(1, "executing program\n", 18 [pid 8480] rt_sigprocmask(SIG_SETMASK, [], executing program NULL, 8) = 0 [pid 8479] <... write resumed>) = 18 [pid 8479] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8480] memfd_create("syzkaller", 0) = 4 [pid 8479] <... futex resumed>) = 0 [pid 8479] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8479] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8479] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8480] <... mmap resumed>) = 0x7ff7d3800000 [pid 8479] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8479] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8479] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8479] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8479] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8481 attached [pid 8481] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8479] <... clone3 resumed> => {parent_tid=[8481]}, 88) = 8481 [pid 8481] <... rseq resumed>) = 0 [pid 8479] rt_sigprocmask(SIG_SETMASK, [], [pid 8481] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8481] rt_sigprocmask(SIG_SETMASK, [], [pid 8479] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8479] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8481] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8479] <... futex resumed>) = 0 [pid 8479] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8481] memfd_create("syzkaller", 0) = 3 [pid 8481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8460] <... write resumed>) = 16777216 [pid 8460] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8460] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8480] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8460] <... openat resumed>) = 4 [pid 8463] <... write resumed>) = 16777216 [pid 8460] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8463] munmap(0x7ff7d3800000, 138412032 [pid 8460] close(3) = 0 [pid 8460] close(4) = 0 [ 309.316913][ T8460] loop3: detected capacity change from 0 to 32768 [pid 8460] mkdir("./file1", 0777 [pid 8463] <... munmap resumed>) = 0 [pid 8460] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8460] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8463] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8463] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8481] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8463] close(3) = 0 [pid 8463] close(4) = 0 [pid 8463] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 309.374638][ T8463] loop4: detected capacity change from 0 to 32768 [ 309.466306][ T8460] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 309.517880][ T8460] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 309.554610][ T8463] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 309.591537][ T8463] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 309.629683][ T8408] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8463] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8419] <... write resumed>) = 16776704 [pid 8419] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] kill(-8372, SIGKILL [pid 8419] <... futex resumed>) = 0 [pid 8373] <... futex resumed>) = ? [pid 8372] <... futex resumed>) = ? [pid 5843] <... kill resumed>) = 0 [pid 8373] +++ killed by SIGKILL +++ [pid 5843] kill(8372, SIGKILL [pid 8419] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5843] <... kill resumed>) = 0 [pid 8460] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8460] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 8460] ioctl(3, LOOP_CLR_FD) = 0 [ 309.700767][ T8460] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8460] close(3 [pid 8408] <... mount resumed>) = ? [pid 8408] +++ killed by SIGKILL +++ [pid 8372] +++ killed by SIGKILL +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=8372, si_uid=0, si_status=SIGKILL, si_utime=16 /* 0.16 s */, si_stime=98 /* 0.98 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 8481] <... write resumed>) = 16777216 [pid 8480] <... write resumed>) = 16777216 [pid 8463] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5843] close(3 [ 309.792627][ T8463] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8480] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8481] munmap(0x7ff7d3800000, 138412032 [pid 8463] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 8463] ioctl(3, LOOP_CLR_FD) = 0 [pid 8463] close(3 [pid 8480] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 8480] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8480] ioctl(5, LOOP_CLR_FD) = 0 [pid 8480] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8480] close(5) = 0 [pid 8480] close(4 [pid 8481] <... munmap resumed>) = 0 [pid 8481] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8481] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8481] close(3) = 0 [pid 8481] close(4) = 0 [pid 8481] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 309.896044][ T8481] loop1: detected capacity change from 0 to 32768 [pid 8481] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8460] <... close resumed>) = 0 [pid 8460] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8459] <... futex resumed>) = 0 [pid 8459] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8459] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8460] creat("./bus", 000 [pid 8459] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8459] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8459] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8459] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8459] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8503]}, 88) = 8503 [pid 8459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8459] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8459] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8503 attached [pid 8503] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8503] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8503] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8503] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8459] <... futex resumed>) = 0 [pid 8503] memfd_create("syzkaller", 0 [pid 8459] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8503] <... memfd_create resumed>) = 4 [pid 8459] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 310.070302][ T8481] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 310.080093][ T8481] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5843] <... close resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8504 attached [pid 8504] set_robust_list(0x5555693e0760, 24 [pid 8463] <... close resumed>) = 0 [pid 8504] <... set_robust_list resumed>) = 0 [pid 8463] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8463] <... futex resumed>) = 1 [pid 8461] <... futex resumed>) = 0 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 8504 [pid 8504] <... prctl resumed>) = 0 [pid 8463] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8461] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8504] setpgid(0, 0 [pid 8463] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8504] <... setpgid resumed>) = 0 [pid 8463] creat("./bus", 000 [pid 8504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8461] <... futex resumed>) = 0 [pid 8504] <... openat resumed>) = 3 [pid 8461] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8504] write(3, "1000", 4) = 4 [pid 8504] close(3) = 0 executing program [pid 8504] write(1, "executing program\n", 18 [pid 8480] <... close resumed>) = 0 [pid 8504] <... write resumed>) = 18 [pid 8504] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8504] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8504] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8480] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8504] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8480] <... futex resumed>) = 1 [pid 8480] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8504] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8409] <... futex resumed>) = 0 [pid 8504] <... mprotect resumed>) = 0 [pid 8409] exit_group(0 [pid 8504] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8480] <... futex resumed>) = ? [pid 8419] <... futex resumed>) = ? [pid 8409] <... exit_group resumed>) = ? [pid 8504] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8480] +++ exited with 0 +++ [pid 8419] +++ exited with 0 +++ [pid 8504] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8461] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8461] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 ./strace-static-x86_64: Process 8505 attached [pid 8461] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8504] <... clone3 resumed> => {parent_tid=[8505]}, 88) = 8505 [pid 8461] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8505] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8504] rt_sigprocmask(SIG_SETMASK, [], [pid 8505] <... rseq resumed>) = 0 [pid 8504] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8461] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8461] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8506 attached => {parent_tid=[8506]}, 88) = 8506 [pid 8461] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8461] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8461] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8506] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8506] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8506] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8506] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8505] set_robust_list(0x7ff7dbc929a0, 24 [pid 8504] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8506] <... futex resumed>) = 1 [pid 8461] <... futex resumed>) = 0 [pid 8461] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8409] +++ exited with 0 +++ [pid 8504] <... futex resumed>) = 0 [pid 8505] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8409, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=98 /* 0.98 s */} --- [pid 8505] rt_sigprocmask(SIG_SETMASK, [], [pid 8504] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 8505] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8461] <... futex resumed>) = 0 [pid 8461] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8506] memfd_create("syzkaller", 0) = 4 [pid 8506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8505] memfd_create("syzkaller", 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 8505] <... memfd_create resumed>) = 3 [pid 8505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8507 ./strace-static-x86_64: Process 8507 attached [pid 8507] set_robust_list(0x5555693e0760, 24) = 0 [pid 8507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8507] setpgid(0, 0) = 0 [pid 8507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8507] write(3, "1000", 4) = 4 [pid 8507] close(3) = 0 executing program [pid 8507] write(1, "executing program\n", 18) = 18 [pid 8507] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8507] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8507] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8507] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8507] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8507] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8508]}, 88) = 8508 [pid 8507] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 8508 attached NULL, 8) = 0 [pid 8507] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8508] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8507] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8508] <... rseq resumed>) = 0 [pid 8508] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8508] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8508] memfd_create("syzkaller", 0) = 3 [pid 8508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8481] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8481] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 8481] ioctl(3, LOOP_CLR_FD) = 0 [ 310.352292][ T8481] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8481] close(3 [pid 8503] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8463] <... creat resumed>) = 3 [pid 8460] <... creat resumed>) = 3 [pid 8463] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8460] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8460] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8463] <... futex resumed>) = 0 [pid 8463] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8481] <... close resumed>) = 0 [pid 8481] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8481] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8479] <... futex resumed>) = 0 [pid 8479] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8481] <... futex resumed>) = 0 [pid 8481] creat("./bus", 000) = 3 [pid 8481] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8481] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8479] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 8479] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8481] <... futex resumed>) = 0 [pid 8479] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8481] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8506] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8479] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8479] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8479] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8479] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8479] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8508] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8479] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8479] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8509 attached => {parent_tid=[8509]}, 88) = 8509 [pid 8509] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8479] rt_sigprocmask(SIG_SETMASK, [], [pid 8509] <... rseq resumed>) = 0 [pid 8479] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8509] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8479] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8509] rt_sigprocmask(SIG_SETMASK, [], [pid 8479] <... futex resumed>) = 0 [pid 8509] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8479] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8509] memfd_create("syzkaller", 0) = 4 [pid 8509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8503] <... write resumed>) = 16777216 [pid 8503] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8503] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 8503] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8503] close(4) = 0 [pid 8503] close(5) = 0 [pid 8503] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 311.094287][ T8503] loop3: detected capacity change from 0 to 32768 [ 311.130318][ T8503] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8503) [pid 8503] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8506] <... write resumed>) = 16777216 [pid 8505] <... write resumed>) = 16777216 [pid 8506] munmap(0x7ff7d3800000, 138412032 [pid 8505] munmap(0x7ff7d3800000, 138412032 [pid 8506] <... munmap resumed>) = 0 [pid 8505] <... munmap resumed>) = 0 [ 311.180406][ T8503] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 311.207846][ T8503] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 8505] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8505] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8506] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8505] close(3 [pid 8506] <... openat resumed>) = 5 [pid 8505] <... close resumed>) = 0 [pid 8505] close(4 [pid 8506] ioctl(5, LOOP_SET_FD, 4 [pid 8505] <... close resumed>) = 0 [pid 8509] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8505] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8506] <... ioctl resumed>) = 0 [pid 8506] close(4 [pid 8505] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8506] <... close resumed>) = 0 [pid 8506] close(5) = 0 [pid 8506] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8506] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8508] <... write resumed>) = 16777216 [ 311.253775][ T8505] loop0: detected capacity change from 0 to 32768 [ 311.287335][ T8506] loop4: detected capacity change from 0 to 32768 [pid 8508] munmap(0x7ff7d3800000, 138412032) = 0 [ 311.325088][ T8506] BTRFS: device /dev/loop4 (7:4) using temp-fsid d1379b14-7fec-4825-99b8-9cd232bfc68a [pid 8508] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8508] ioctl(4, LOOP_CLR_FD) = 0 [pid 8508] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8508] close(4) = 0 [ 311.376009][ T8506] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8506) [ 311.404445][ T8503] BTRFS info (device loop3): rebuilding free space tree [ 311.449852][ T8505] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 311.459595][ T8505] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 311.488754][ T8506] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 311.511895][ T8506] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 311.529850][ T8503] BTRFS info (device loop3): disabling free space tree [ 311.587832][ T8503] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8508] close(3 [pid 8481] <... write resumed>) = 16776704 [pid 8481] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 311.655462][ T8503] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8481] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8505] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8505] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 8505] ioctl(3, LOOP_CLR_FD) = 0 [ 311.700527][ T8505] bcachefs: bch2_fs_get_tree() error: EINVAL [ 311.710527][ T8506] BTRFS info (device loop4): rebuilding free space tree [pid 8505] close(3 [pid 8509] <... write resumed>) = 16777216 [pid 8509] munmap(0x7ff7d3800000, 138412032) = 0 [ 311.798389][ T8503] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 311.838733][ T8506] BTRFS info (device loop4): disabling free space tree [ 311.845721][ T8506] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8509] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 8505] <... close resumed>) = 0 [pid 8509] ioctl(5, LOOP_SET_FD, 4 [pid 8505] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8505] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8504] <... futex resumed>) = 0 [pid 8504] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8505] <... futex resumed>) = 0 [pid 8504] <... futex resumed>) = 1 [pid 8505] creat("./bus", 000 [pid 8504] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8509] <... ioctl resumed>) = 0 [pid 8509] close(4) = 0 [pid 8509] close(5) = 0 [pid 8509] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 311.888358][ T8506] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 311.898229][ T8509] loop1: detected capacity change from 0 to 32768 [pid 8509] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8508] <... close resumed>) = 0 [pid 8504] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8504] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8504] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8504] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8504] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8549]}, 88) = 8549 [pid 8504] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8504] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 8549 attached [pid 8504] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8549] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8549] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8549] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8549] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8549] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8504] <... futex resumed>) = 0 [pid 8504] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 311.938172][ T8509] BTRFS: device /dev/loop1 (7:1) using temp-fsid 0d724604-23ce-4733-a62b-8b8a31ec41c5 [pid 8504] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8549] memfd_create("syzkaller", 0) = 4 [pid 8549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8508] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8508] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8507] <... futex resumed>) = 0 [pid 8507] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8508] <... futex resumed>) = 0 [pid 8507] <... futex resumed>) = 1 [pid 8508] creat("./bus", 000 [ 311.999354][ T8509] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8509) [pid 8507] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 8507] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8507] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8507] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8507] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8550 attached => {parent_tid=[8550]}, 88) = 8550 [pid 8507] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8507] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8550] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8507] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8550] <... rseq resumed>) = 0 [pid 8550] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8550] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8550] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8507] <... futex resumed>) = 0 [pid 8507] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8550] memfd_create("syzkaller", 0 [pid 8507] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8503] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8550] <... memfd_create resumed>) = 4 [pid 8503] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8503] <... openat resumed>) = 4 [pid 8550] <... mmap resumed>) = 0x7ff7d3800000 [pid 8503] ioctl(4, LOOP_CLR_FD) = 0 [ 312.061473][ T8509] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 312.088673][ T8509] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 8503] close(4 [pid 8508] <... creat resumed>) = 3 [pid 8508] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8508] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8505] <... creat resumed>) = 3 [pid 8505] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 312.158839][ T8506] BTRFS info (device loop4): last unmount of filesystem d1379b14-7fec-4825-99b8-9cd232bfc68a [ 312.248661][ T8509] BTRFS info (device loop1): rebuilding free space tree [pid 8505] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8506] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8506] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8506] ioctl(4, LOOP_CLR_FD) = 0 [ 312.367908][ T8509] BTRFS info (device loop1): disabling free space tree [ 312.397333][ T8509] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8506] close(4 [pid 8503] <... close resumed>) = 0 [pid 8503] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8459] <... futex resumed>) = 0 [pid 8459] exit_group(0 [pid 8460] <... futex resumed>) = ? [pid 8459] <... exit_group resumed>) = ? [pid 8460] +++ exited with 0 +++ [pid 8503] +++ exited with 0 +++ [pid 8459] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8459, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=101 /* 1.01 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8567 attached [pid 8567] set_robust_list(0x5555693e0760, 24 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 8567 [pid 8567] <... set_robust_list resumed>) = 0 executing program [pid 8567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8567] setpgid(0, 0) = 0 [pid 8567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8567] write(3, "1000", 4) = 4 [pid 8567] close(3) = 0 [pid 8567] write(1, "executing program\n", 18) = 18 [ 312.427816][ T8509] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8567] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8567] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8567] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8567] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8567] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8567] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8568]}, 88) = 8568 [pid 8567] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8567] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8567] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8568 attached [pid 8568] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8568] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8568] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 312.508479][ T8509] BTRFS info (device loop1): last unmount of filesystem 0d724604-23ce-4733-a62b-8b8a31ec41c5 [pid 8568] memfd_create("syzkaller", 0) = 3 [pid 8568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8549] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8509] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8506] <... close resumed>) = 0 [pid 8506] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8506] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8461] <... futex resumed>) = 0 [pid 8461] exit_group(0) = ? [pid 8506] <... futex resumed>) = ? [pid 8506] +++ exited with 0 +++ [pid 8509] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8463] <... futex resumed>) = ? [pid 8463] +++ exited with 0 +++ [pid 8461] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8461, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=88 /* 0.88 s */} --- [pid 8509] <... openat resumed>) = 4 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8509] ioctl(4, LOOP_CLR_FD [pid 5850] <... openat resumed>) = 3 [pid 8509] <... ioctl resumed>) = 0 [pid 8509] close(4 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8509] <... close resumed>) = 0 [pid 8509] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8479] <... futex resumed>) = 0 [pid 8509] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8479] exit_group(0) = ? [pid 8509] <... futex resumed>) = ? [pid 8509] +++ exited with 0 +++ [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 8569 [pid 8481] <... futex resumed>) = ? ./strace-static-x86_64: Process 8569 attached [pid 8569] set_robust_list(0x5555693e0760, 24) = 0 [pid 8569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8569] setpgid(0, 0) = 0 [pid 8569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8569] write(3, "1000", 4) = 4 [pid 8569] close(3executing program ) = 0 [pid 8569] write(1, "executing program\n", 18) = 18 [pid 8569] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8569] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8569] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8481] +++ exited with 0 +++ [pid 8479] +++ exited with 0 +++ [pid 8569] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8479, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=111 /* 1.11 s */} --- [pid 8569] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8569] <... mprotect resumed>) = 0 [pid 5844] <... openat resumed>) = 3 [pid 8569] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5844] ioctl(3, LOOP_CLR_FD [pid 8569] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5844] <... ioctl resumed>) = 0 [pid 8569] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5844] close(3./strace-static-x86_64: Process 8570 attached ) = 0 [pid 8570] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8569] <... clone3 resumed> => {parent_tid=[8570]}, 88) = 8570 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8570] <... rseq resumed>) = 0 [pid 8569] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 8571 [pid 8569] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 8571 attached [pid 8570] set_robust_list(0x7ff7dbc929a0, 24 [pid 8569] <... futex resumed>) = 0 [pid 8570] <... set_robust_list resumed>) = 0 [pid 8569] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8571] set_robust_list(0x5555693e0760, 24 [pid 8570] rt_sigprocmask(SIG_SETMASK, [], [pid 8571] <... set_robust_list resumed>) = 0 [pid 8570] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8570] memfd_create("syzkaller", 0 [pid 8571] <... prctl resumed>) = 0 [pid 8570] <... memfd_create resumed>) = 3 [pid 8571] setpgid(0, 0 [pid 8570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8571] <... setpgid resumed>) = 0 [pid 8570] <... mmap resumed>) = 0x7ff7d3800000 [pid 8571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 8571] write(3, "1000", 4) = 4 [pid 8571] close(3) = 0 [pid 8571] write(1, "executing program\n", 18) = 18 [pid 8571] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8571] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8571] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8571] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8571] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8571] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8572]}, 88) = 8572 [pid 8571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8571] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8571] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8572 attached [pid 8550] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8572] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8572] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8572] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8572] memfd_create("syzkaller", 0) = 3 [pid 8572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8549] <... write resumed>) = 16777216 [pid 8549] munmap(0x7ff7d3800000, 138412032 [pid 8568] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8549] <... munmap resumed>) = 0 [pid 8549] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8570] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8549] <... openat resumed>) = 5 [pid 8549] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8549] close(4) = 0 [pid 8549] close(5) = 0 [pid 8549] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 313.158630][ T8549] loop0: detected capacity change from 0 to 32768 [ 313.193855][ T8549] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8549) [pid 8549] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8572] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8550] <... write resumed>) = 16777216 [ 313.246170][ T8549] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8550] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8550] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 8550] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8550] ioctl(5, LOOP_CLR_FD) = 0 [pid 8550] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8550] close(5) = 0 [ 313.287784][ T8549] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 313.439091][ T8549] BTRFS info (device loop0): rebuilding free space tree [ 313.472892][ T8549] BTRFS info (device loop0): disabling free space tree [pid 8550] close(4 [pid 8568] <... write resumed>) = 16777216 [pid 8568] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8568] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8568] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8568] close(3) = 0 [pid 8568] close(4) = 0 [pid 8568] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 313.504204][ T8549] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 313.526649][ T8549] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 313.541432][ T8568] loop3: detected capacity change from 0 to 32768 [pid 8568] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8570] <... write resumed>) = 16777216 [ 313.582973][ T8549] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8570] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8570] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8550] <... close resumed>) = 0 [pid 8570] <... openat resumed>) = 4 [pid 8550] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8570] ioctl(4, LOOP_SET_FD, 3 [pid 8550] <... futex resumed>) = 1 [pid 8507] <... futex resumed>) = 0 [pid 8507] exit_group(0 [pid 8508] <... futex resumed>) = ? [pid 8507] <... exit_group resumed>) = ? [pid 8508] +++ exited with 0 +++ [pid 8550] +++ exited with 0 +++ [pid 8507] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8507, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=72 /* 0.72 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 8549] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8570] <... ioctl resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 8570] close(3) = 0 [pid 8570] close(4) = 0 [pid 8570] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8570] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 5845] <... openat resumed>) = 3 [pid 8549] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5845] ioctl(3, LOOP_CLR_FD [pid 8549] <... openat resumed>) = 4 [pid 5845] <... ioctl resumed>) = 0 [pid 8549] ioctl(4, LOOP_CLR_FD [pid 5845] close(3 [pid 8549] <... ioctl resumed>) = 0 [pid 5845] <... close resumed>) = 0 [ 313.656127][ T8568] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 313.672266][ T8568] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 313.685256][ T8570] loop4: detected capacity change from 0 to 32768 [pid 8549] close(4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8598 attached , child_tidptr=0x5555693e0750) = 8598 [pid 8572] <... write resumed>) = 16777216 [pid 8598] set_robust_list(0x5555693e0760, 24) = 0 [pid 8598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8598] setpgid(0, 0 [pid 8572] munmap(0x7ff7d3800000, 138412032 [pid 8598] <... setpgid resumed>) = 0 [pid 8598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8598] write(3, "1000", 4) = 4 [pid 8598] close(3) = 0 [pid 8598] write(1, "executing program\n", 18executing program ) = 18 [pid 8598] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8598] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8598] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8572] <... munmap resumed>) = 0 [pid 8598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8598] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8598] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8598] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8604 attached => {parent_tid=[8604]}, 88) = 8604 [pid 8598] rt_sigprocmask(SIG_SETMASK, [], [pid 8604] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8598] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8604] <... rseq resumed>) = 0 [pid 8598] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8604] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8598] <... futex resumed>) = 0 [pid 8604] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8598] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8604] memfd_create("syzkaller", 0) = 3 [pid 8604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8572] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8604] <... mmap resumed>) = 0x7ff7d3800000 [pid 8572] <... openat resumed>) = 4 [ 313.800285][ T8570] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 313.809611][ T8570] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8572] ioctl(4, LOOP_SET_FD, 3) = 0 [ 313.845822][ T8572] loop1: detected capacity change from 0 to 32768 [pid 8572] close(3) = 0 [pid 8572] close(4) = 0 [pid 8572] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8568] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8572] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8568] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 8568] ioctl(3, LOOP_CLR_FD) = 0 [ 313.896633][ T8568] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8568] close(3 [pid 8549] <... close resumed>) = 0 [pid 8549] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8549] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8504] <... futex resumed>) = 0 [pid 8504] exit_group(0 [pid 8549] <... futex resumed>) = ? [pid 8505] <... futex resumed>) = ? [pid 8504] <... exit_group resumed>) = ? [pid 8549] +++ exited with 0 +++ [pid 8505] +++ exited with 0 +++ [pid 8504] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8504, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=92 /* 0.92 s */} --- [pid 8570] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8570] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8570] <... openat resumed>) = 3 [pid 5843] <... openat resumed>) = 3 [pid 8570] ioctl(3, LOOP_CLR_FD [pid 5843] ioctl(3, LOOP_CLR_FD [pid 8570] <... ioctl resumed>) = 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8570] close(3 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8612 ./strace-static-x86_64: Process 8612 attached [ 314.043068][ T8570] bcachefs: bch2_fs_get_tree() error: EINVAL [ 314.046375][ T8572] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 314.059328][ T8572] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8612] set_robust_list(0x5555693e0760, 24) = 0 [pid 8612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8612] setpgid(0, 0) = 0 [pid 8612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 8612] write(3, "1000", 4) = 4 [pid 8612] close(3) = 0 [pid 8612] write(1, "executing program\n", 18) = 18 [pid 8612] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8612] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8612] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8612] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8612] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8612] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8613]}, 88) = 8613 [pid 8612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8612] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8612] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8613 attached [pid 8613] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8613] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8613] memfd_create("syzkaller", 0) = 3 [pid 8613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8568] <... close resumed>) = 0 [pid 8568] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8567] <... futex resumed>) = 0 [pid 8568] creat("./bus", 000 [pid 8567] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8568] <... creat resumed>) = 3 [pid 8567] <... futex resumed>) = 0 [pid 8568] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8567] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8568] <... futex resumed>) = 0 [pid 8567] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8568] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 8567] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8568] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8567] <... futex resumed>) = 0 [pid 8567] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8604] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8567] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8567] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8567] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8567] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8567] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8614 attached => {parent_tid=[8614]}, 88) = 8614 [pid 8567] rt_sigprocmask(SIG_SETMASK, [], [pid 8614] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8567] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8614] set_robust_list(0x7ff7dbc719a0, 24 [pid 8567] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8614] <... set_robust_list resumed>) = 0 [pid 8567] <... futex resumed>) = 0 [pid 8614] rt_sigprocmask(SIG_SETMASK, [], [pid 8572] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8614] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8567] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8614] memfd_create("syzkaller", 0) = 4 [pid 8614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8572] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 8572] ioctl(3, LOOP_CLR_FD [pid 8614] <... mmap resumed>) = 0x7ff7d3800000 [pid 8572] <... ioctl resumed>) = 0 [ 314.378925][ T8572] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8572] close(3 [pid 8570] <... close resumed>) = 0 [pid 8570] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8569] <... futex resumed>) = 0 [pid 8570] creat("./bus", 000 [pid 8569] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8569] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 8569] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8569] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8569] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8569] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8615]}, 88) = 8615 [pid 8569] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8569] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 8615 attached [pid 8569] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8615] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8615] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8615] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8615] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8569] <... futex resumed>) = 0 [pid 8569] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8615] memfd_create("syzkaller", 0 [pid 8569] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8615] <... memfd_create resumed>) = 4 [pid 8615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8572] <... close resumed>) = 0 [pid 8572] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8571] <... futex resumed>) = 0 [pid 8571] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8571] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8572] creat("./bus", 000 [pid 8571] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8571] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 8571] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8571] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8571] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8571] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8616]}, 88) = 8616 [pid 8571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8571] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 8616 attached ) = 0 [pid 8616] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8571] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8616] <... rseq resumed>) = 0 [pid 8616] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8616] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8616] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8571] <... futex resumed>) = 0 [pid 8616] memfd_create("syzkaller", 0 [pid 8571] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8616] <... memfd_create resumed>) = 4 [pid 8571] <... futex resumed>) = 0 [pid 8616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8571] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8616] <... mmap resumed>) = 0x7ff7d3800000 [pid 8604] <... write resumed>) = 16777216 [pid 8604] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8604] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8604] ioctl(4, LOOP_CLR_FD) = 0 [pid 8604] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8604] close(4) = 0 [pid 8604] close(3 [pid 8614] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8615] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8604] <... close resumed>) = 0 [pid 8604] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8604] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8598] <... futex resumed>) = 0 [pid 8613] <... write resumed>) = 16777216 [pid 8613] munmap(0x7ff7d3800000, 138412032 [pid 8598] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8598] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8604] <... futex resumed>) = 0 [pid 8604] creat("./bus", 000 [pid 8613] <... munmap resumed>) = 0 [pid 8613] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8613] ioctl(4, LOOP_SET_FD, 3 [pid 8616] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8613] <... ioctl resumed>) = 0 [pid 8613] close(3) = 0 [pid 8613] close(4) = 0 [pid 8598] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8613] mkdir("./file1", 0777 [pid 8598] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8613] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8598] <... futex resumed>) = 0 [pid 8613] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8598] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [ 315.173381][ T8613] loop0: detected capacity change from 0 to 32768 [pid 8598] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8598] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8619]}, 88) = 8619 ./strace-static-x86_64: Process 8619 attached [pid 8598] rt_sigprocmask(SIG_SETMASK, [], [pid 8619] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8598] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8619] <... rseq resumed>) = 0 [pid 8619] set_robust_list(0x7ff7dbc719a0, 24 [pid 8598] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8619] <... set_robust_list resumed>) = 0 [pid 8619] rt_sigprocmask(SIG_SETMASK, [], [pid 8598] <... futex resumed>) = 0 [pid 8619] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8598] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8619] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8619] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8598] <... futex resumed>) = 0 [pid 8598] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8619] memfd_create("syzkaller", 0 [pid 8598] <... futex resumed>) = 0 [pid 8619] <... memfd_create resumed>) = 4 [pid 8598] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8568] <... write resumed>) = 16776704 [pid 8568] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8568] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8614] <... write resumed>) = 16777216 [ 315.355934][ T8613] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 315.369429][ T8613] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8614] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8614] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 8614] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8614] close(4) = 0 [pid 8614] close(5) = 0 [ 315.438747][ T8614] loop3: detected capacity change from 0 to 32768 [pid 8614] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 315.519621][ T8614] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8614) [pid 8614] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8615] <... write resumed>) = 16777216 [pid 8604] <... creat resumed>) = 3 [pid 8572] <... creat resumed>) = 3 [pid 8570] <... creat resumed>) = 3 [pid 8604] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8572] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8570] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8604] <... futex resumed>) = 0 [pid 8572] <... futex resumed>) = 0 [pid 8570] <... futex resumed>) = 0 [pid 8604] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8572] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8570] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8615] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 315.594146][ T8614] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 315.623149][ T8615] loop4: detected capacity change from 0 to 32768 [pid 8615] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8615] close(4) = 0 [pid 8615] close(5) = 0 [pid 8615] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8615] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8613] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8613] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8616] <... write resumed>) = 16777216 [pid 8613] <... openat resumed>) = 3 [pid 8613] ioctl(3, LOOP_CLR_FD) = 0 [ 315.636961][ T8614] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 315.643351][ T8613] bcachefs: bch2_fs_get_tree() error: EINVAL [ 315.674326][ T8615] BTRFS: device /dev/loop4 (7:4) using temp-fsid 9063f4a7-e0a2-489b-8b26-e7a1fc222fe4 [pid 8613] close(3 [pid 8616] munmap(0x7ff7d3800000, 138412032) = 0 [ 315.722234][ T8615] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8615) [ 315.797964][ T8615] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8619] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8616] <... openat resumed>) = 5 [pid 8616] ioctl(5, LOOP_SET_FD, 4) = 0 [ 315.838224][ T8615] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 315.849189][ T8616] loop1: detected capacity change from 0 to 32768 [pid 8613] <... close resumed>) = 0 [pid 8616] close(4) = 0 [pid 8616] close(5) = 0 [pid 8616] mkdir("./bus", 0777 [pid 8613] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8616] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8613] <... futex resumed>) = 1 [pid 8616] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8613] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8612] <... futex resumed>) = 0 [pid 8612] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8613] <... futex resumed>) = 0 [pid 8612] <... futex resumed>) = 1 [pid 8613] creat("./bus", 000 [pid 8612] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8613] <... creat resumed>) = 3 [pid 8613] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8612] <... futex resumed>) = 0 [pid 8612] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 315.890318][ T8614] BTRFS info (device loop3): rebuilding free space tree [ 315.922206][ T8616] BTRFS: device /dev/loop1 (7:1) using temp-fsid 3512c6e6-b691-4c4b-86d2-228f76bfffb1 [pid 8612] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8613] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8612] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8612] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 315.977426][ T8614] BTRFS info (device loop3): disabling free space tree [ 315.985001][ T8616] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8616) [pid 8612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8612] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8612] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8612] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8655]}, 88) = 8655 [pid 8612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8612] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8612] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8655 attached [pid 8655] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8655] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8655] memfd_create("syzkaller", 0) = 4 [pid 8655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 316.028412][ T8614] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 316.097793][ T8614] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 316.109360][ T8616] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8619] <... write resumed>) = 16777216 [ 316.158795][ T8615] BTRFS info (device loop4): rebuilding free space tree [ 316.178127][ T8616] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 8619] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8619] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 8619] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8619] ioctl(5, LOOP_CLR_FD) = 0 [pid 8619] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8619] close(5) = 0 [ 316.212884][ T8615] BTRFS info (device loop4): disabling free space tree [ 316.240341][ T8615] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 316.274038][ T8615] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 316.351526][ T8616] BTRFS info (device loop1): rebuilding free space tree [ 316.409119][ T8616] BTRFS info (device loop1): disabling free space tree [ 316.437977][ T8616] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8619] close(4 [ 316.470535][ T8616] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8655] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8619] <... close resumed>) = 0 [pid 8619] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8598] <... futex resumed>) = 0 [pid 8619] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8598] exit_group(0 [pid 8619] <... futex resumed>) = ? [pid 8604] <... futex resumed>) = ? [pid 8598] <... exit_group resumed>) = ? [pid 8619] +++ exited with 0 +++ [pid 8604] +++ exited with 0 +++ [pid 8613] <... write resumed>) = 16776704 [pid 8613] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 316.660945][ T8614] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 316.678824][ T8615] BTRFS info (device loop4): last unmount of filesystem 9063f4a7-e0a2-489b-8b26-e7a1fc222fe4 [ 316.699832][ T8616] BTRFS info (device loop1): last unmount of filesystem 3512c6e6-b691-4c4b-86d2-228f76bfffb1 [pid 8613] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8614] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8614] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8614] ioctl(4, LOOP_CLR_FD) = 0 [pid 8614] close(4 [pid 8598] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8598, si_uid=0, si_status=0, si_utime=24 /* 0.24 s */, si_stime=70 /* 0.70 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 8655] <... write resumed>) = 16777216 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8655] munmap(0x7ff7d3800000, 138412032 [pid 5845] <... openat resumed>) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8674 ./strace-static-x86_64: Process 8674 attached [pid 8674] set_robust_list(0x5555693e0760, 24) = 0 [pid 8674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8615] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8674] <... prctl resumed>) = 0 [pid 8616] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8674] setpgid(0, 0) = 0 [pid 8674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8655] <... munmap resumed>) = 0 [pid 8616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8615] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8674] write(3, "1000", 4 [pid 8615] <... openat resumed>) = 4 [pid 8674] <... write resumed>) = 4 [pid 8615] ioctl(4, LOOP_CLR_FD [pid 8674] close(3 [pid 8615] <... ioctl resumed>) = 0 [pid 8674] <... close resumed>) = 0 [pid 8616] <... openat resumed>) = 4 [pid 8615] close(4executing program [pid 8674] write(1, "executing program\n", 18 [pid 8616] ioctl(4, LOOP_CLR_FD [pid 8674] <... write resumed>) = 18 [pid 8616] <... ioctl resumed>) = 0 [pid 8674] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8616] close(4 [pid 8674] <... futex resumed>) = 0 [pid 8655] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8674] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8655] <... openat resumed>) = 5 [pid 8674] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8674] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8655] ioctl(5, LOOP_SET_FD, 4 [pid 8674] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8655] <... ioctl resumed>) = 0 [pid 8674] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8655] close(4) = 0 [pid 8655] close(5 [pid 8674] <... mprotect resumed>) = 0 [pid 8655] <... close resumed>) = 0 [pid 8674] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8674] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8675 attached [pid 8655] mkdir("./bus", 0777 [pid 8674] <... clone3 resumed> => {parent_tid=[8675]}, 88) = 8675 [pid 8675] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8674] rt_sigprocmask(SIG_SETMASK, [], [pid 8655] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8674] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8674] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8674] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8675] <... rseq resumed>) = 0 [ 316.851134][ T8655] loop0: detected capacity change from 0 to 32768 [pid 8655] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8675] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8675] memfd_create("syzkaller", 0) = 3 [pid 8675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 316.910119][ T8655] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8655) [pid 8614] <... close resumed>) = 0 [pid 8614] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8614] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8567] <... futex resumed>) = 0 [pid 8567] exit_group(0 [pid 8614] <... futex resumed>) = ? [pid 8568] <... futex resumed>) = ? [pid 8567] <... exit_group resumed>) = ? [pid 8614] +++ exited with 0 +++ [ 316.958835][ T8655] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 316.997862][ T8655] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 8568] +++ exited with 0 +++ [pid 8567] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8567, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=119 /* 1.19 s */} --- [pid 8615] <... close resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8615] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8569] <... futex resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 8615] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8569] exit_group(0 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 8616] <... close resumed>) = 0 [pid 8615] <... futex resumed>) = ? [pid 8570] <... futex resumed>) = ? [pid 8569] <... exit_group resumed>) = ? [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8615] +++ exited with 0 +++ [pid 5847] close(3 [pid 8570] +++ exited with 0 +++ [pid 8569] +++ exited with 0 +++ [pid 5847] <... close resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8689 attached [pid 8616] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8569, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=102 /* 1.02 s */} --- [pid 8571] <... futex resumed>) = 0 [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 8689 [pid 8616] <... futex resumed>) = 1 [pid 8571] exit_group(0 [pid 5850] <... restart_syscall resumed>) = 0 [pid 8571] <... exit_group resumed>) = ? [pid 8572] <... futex resumed>) = ? [pid 8616] +++ exited with 0 +++ [pid 8572] +++ exited with 0 +++ [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8689] set_robust_list(0x5555693e0760, 24 [pid 5850] <... openat resumed>) = 3 [pid 8689] <... set_robust_list resumed>) = 0 [pid 5850] ioctl(3, LOOP_CLR_FDexecuting program [pid 8689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8571] +++ exited with 0 +++ [pid 8689] <... prctl resumed>) = 0 [pid 8689] setpgid(0, 0) = 0 [pid 8689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] close(3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8571, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=88 /* 0.88 s */} --- [pid 5850] <... close resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8689] write(3, "1000", 4) = 4 [pid 8689] close(3) = 0 [pid 8689] write(1, "executing program\n", 18) = 18 [pid 8689] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8689] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 ./strace-static-x86_64: Process 8690 attached [pid 8689] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5844] <... openat resumed>) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 8689] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 8690 [pid 8689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5844] close(3 [pid 8689] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8689] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5844] <... close resumed>) = 0 [pid 8690] set_robust_list(0x5555693e0760, 24 [pid 8689] <... mprotect resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8689] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8689] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8694 attached ./strace-static-x86_64: Process 8693 attached [pid 8690] <... set_robust_list resumed>) = 0 [pid 8689] <... clone3 resumed> => {parent_tid=[8693]}, 88) = 8693 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 8694 [pid 8694] set_robust_list(0x5555693e0760, 24 [pid 8693] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8689] rt_sigprocmask(SIG_SETMASK, [], [pid 8694] <... set_robust_list resumed>) = 0 [pid 8689] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8693] <... rseq resumed>) = 0 [pid 8689] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8693] set_robust_list(0x7ff7dbc929a0, 24 [pid 8689] <... futex resumed>) = 0 [pid 8693] <... set_robust_list resumed>) = 0 [pid 8689] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8694] setpgid(0, 0 [pid 8693] rt_sigprocmask(SIG_SETMASK, [], [pid 8690] <... prctl resumed>) = 0 [pid 8693] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8694] <... setpgid resumed>) = 0 [pid 8693] memfd_create("syzkaller", 0 [pid 8690] setpgid(0, 0 [pid 8694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8690] <... setpgid resumed>) = 0 [pid 8693] <... memfd_create resumed>) = 3 [pid 8693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8694] <... openat resumed>) = 3 [pid 8693] <... mmap resumed>) = 0x7ff7d3800000 [pid 8694] write(3, "1000", 4 [pid 8690] <... openat resumed>) = 3 [pid 8694] <... write resumed>) = 4 [pid 8690] write(3, "1000", 4 [pid 8694] close(3) = 0 [pid 8690] <... write resumed>) = 4 executing program [pid 8694] write(1, "executing program\n", 18) = 18 [pid 8690] close(3 [pid 8694] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8690] <... close resumed>) = 0 [pid 8694] <... futex resumed>) = 0 [pid 8690] write(1, "executing program\n", 18 [pid 8694] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, executing program [pid 8690] <... write resumed>) = 18 [pid 8694] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8694] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [ 317.179930][ T8655] BTRFS info (device loop0): rebuilding free space tree [pid 8690] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8694] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8690] <... futex resumed>) = 0 [pid 8694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8694] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8690] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8694] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8690] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8694] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8690] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8694] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8690] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 8696 attached [pid 8690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8696] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8690] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8694] <... clone3 resumed> => {parent_tid=[8696]}, 88) = 8696 [pid 8694] rt_sigprocmask(SIG_SETMASK, [], [pid 8690] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8696] <... rseq resumed>) = 0 [pid 8694] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8690] <... mprotect resumed>) = 0 [pid 8696] set_robust_list(0x7ff7dbc929a0, 24 [pid 8694] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8690] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8694] <... futex resumed>) = 0 [pid 8690] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8690] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8694] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8696] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 8697 attached [pid 8696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8696] memfd_create("syzkaller", 0 [pid 8690] <... clone3 resumed> => {parent_tid=[8697]}, 88) = 8697 [pid 8697] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8696] <... memfd_create resumed>) = 3 [pid 8696] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 317.250835][ T8655] BTRFS info (device loop0): disabling free space tree [ 317.278393][ T8655] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8697] <... rseq resumed>) = 0 [pid 8690] rt_sigprocmask(SIG_SETMASK, [], [pid 8697] set_robust_list(0x7ff7dbc929a0, 24 [pid 8690] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8697] <... set_robust_list resumed>) = 0 [pid 8690] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8697] rt_sigprocmask(SIG_SETMASK, [], [pid 8690] <... futex resumed>) = 0 [pid 8697] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8690] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8697] memfd_create("syzkaller", 0 [pid 8675] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8697] <... memfd_create resumed>) = 3 [pid 8697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 317.328622][ T8655] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 317.389957][ T8655] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8655] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8655] ioctl(4, LOOP_CLR_FD) = 0 [pid 8655] close(4) = 0 [pid 8655] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8612] <... futex resumed>) = 0 [pid 8612] exit_group(0) = ? [pid 8613] <... futex resumed>) = ? [pid 8613] +++ exited with 0 +++ [pid 8655] +++ exited with 0 +++ [pid 8612] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8612, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=102 /* 1.02 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8698 ./strace-static-x86_64: Process 8698 attached [pid 8698] set_robust_list(0x5555693e0760, 24) = 0 [pid 8698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 8698] setpgid(0, 0) = 0 [pid 8698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8698] write(3, "1000", 4) = 4 [pid 8698] close(3) = 0 [pid 8698] write(1, "executing program\n", 18) = 18 [pid 8698] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8698] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8698] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8698] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8698] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8698] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8699]}, 88) = 8699 [pid 8698] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8698] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8698] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 8699 attached [pid 8699] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8699] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8699] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8699] memfd_create("syzkaller", 0) = 3 [pid 8699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8693] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8696] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8697] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8675] <... write resumed>) = 16777216 [pid 8675] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8675] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8675] ioctl(4, LOOP_CLR_FD) = 0 [pid 8675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8675] close(4) = 0 [pid 8675] close(3 [pid 8699] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8693] <... write resumed>) = 16777216 [pid 8693] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8675] <... close resumed>) = 0 [pid 8693] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8675] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8674] <... futex resumed>) = 0 [pid 8674] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8674] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8693] <... openat resumed>) = 4 [pid 8675] creat("./bus", 000 [pid 8696] <... write resumed>) = 16777216 [pid 8693] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8696] munmap(0x7ff7d3800000, 138412032 [pid 8697] <... write resumed>) = 16777216 [pid 8697] munmap(0x7ff7d3800000, 138412032 [pid 8693] close(3) = 0 [pid 8693] close(4) = 0 [pid 8693] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 318.248319][ T8693] loop3: detected capacity change from 0 to 32768 [pid 8693] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8696] <... munmap resumed>) = 0 [pid 8674] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8696] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8674] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8696] <... openat resumed>) = 4 [pid 8674] <... futex resumed>) = 0 [pid 8696] ioctl(4, LOOP_SET_FD, 3 [pid 8674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8674] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8674] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8674] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 8696] <... ioctl resumed>) = 0 [pid 8674] <... clone3 resumed> => {parent_tid=[8702]}, 88) = 8702 [pid 8696] close(3 [pid 8674] rt_sigprocmask(SIG_SETMASK, [], [pid 8696] <... close resumed>) = 0 [pid 8674] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8696] close(4 [pid 8674] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 8702 attached [pid 8696] <... close resumed>) = 0 [pid 8674] <... futex resumed>) = 0 [pid 8696] mkdir("./file1", 0777 [pid 8674] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8696] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8702] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8696] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8702] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8702] rt_sigprocmask(SIG_SETMASK, [], [pid 8697] <... munmap resumed>) = 0 [pid 8702] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8702] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8702] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8674] <... futex resumed>) = 0 [pid 8702] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8674] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8702] <... futex resumed>) = 0 [pid 8674] <... futex resumed>) = 1 [pid 8702] memfd_create("syzkaller", 0 [pid 8674] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8702] <... memfd_create resumed>) = 4 [pid 8702] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8697] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 318.294530][ T8696] loop1: detected capacity change from 0 to 32768 [pid 8697] ioctl(4, LOOP_SET_FD, 3 [pid 8702] <... mmap resumed>) = 0x7ff7d3800000 [pid 8697] <... ioctl resumed>) = 0 [pid 8697] close(3) = 0 [pid 8697] close(4) = 0 [pid 8697] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 318.348101][ T8697] loop4: detected capacity change from 0 to 32768 [ 318.379078][ T8693] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 318.388562][ T8693] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 318.441671][ T8696] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 318.510417][ T8696] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8697] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 318.624467][ T8697] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8702] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8699] <... write resumed>) = 16777216 [pid 8699] munmap(0x7ff7d3800000, 138412032 [pid 8675] <... creat resumed>) = 3 [pid 8675] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8675] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8699] <... munmap resumed>) = 0 [pid 8693] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8693] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 8693] ioctl(3, LOOP_CLR_FD) = 0 [ 318.685152][ T8697] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 318.712712][ T8693] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8693] close(3 [pid 8699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8699] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8702] <... write resumed>) = 16777216 [pid 8699] close(3) = 0 [pid 8699] close(4 [pid 8702] munmap(0x7ff7d3800000, 138412032 [pid 8699] <... close resumed>) = 0 [pid 8699] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 318.790158][ T8699] loop0: detected capacity change from 0 to 32768 [pid 8699] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8702] <... munmap resumed>) = 0 [pid 8702] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8697] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8696] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8702] <... openat resumed>) = 5 [pid 8697] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8702] ioctl(5, LOOP_SET_FD, 4 [pid 8697] <... openat resumed>) = 3 [pid 8697] ioctl(3, LOOP_CLR_FD [pid 8702] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 8697] <... ioctl resumed>) = 0 [pid 8702] ioctl(5, LOOP_CLR_FD [pid 8697] close(3 [pid 8702] <... ioctl resumed>) = 0 [pid 8702] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8696] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8702] close(5 [pid 8696] <... openat resumed>) = 3 [ 318.839235][ T8697] bcachefs: bch2_fs_get_tree() error: EINVAL [ 318.858817][ T8696] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8702] <... close resumed>) = 0 [pid 8696] ioctl(3, LOOP_CLR_FD [pid 8702] close(4 [pid 8696] <... ioctl resumed>) = 0 [ 318.925688][ T8699] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8696] close(3 [pid 8702] <... close resumed>) = 0 [pid 8702] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8674] <... futex resumed>) = 0 [pid 8674] exit_group(0 [pid 8675] <... futex resumed>) = ? [pid 8674] <... exit_group resumed>) = ? [pid 8702] +++ exited with 0 +++ [pid 8675] +++ exited with 0 +++ [pid 8674] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8674, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=76 /* 0.76 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 8693] <... close resumed>) = 0 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8729 attached , child_tidptr=0x5555693e0750) = 8729 [ 319.008853][ T8699] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8729] set_robust_list(0x5555693e0760, 24) = 0 [pid 8729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 8693] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8729] <... prctl resumed>) = 0 [pid 8729] setpgid(0, 0 [pid 8693] <... futex resumed>) = 1 [pid 8689] <... futex resumed>) = 0 [pid 8729] <... setpgid resumed>) = 0 [pid 8729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8693] creat("./bus", 000 [pid 8689] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8729] <... openat resumed>) = 3 [pid 8693] <... creat resumed>) = 3 [pid 8689] <... futex resumed>) = 0 [pid 8729] write(3, "1000", 4 [pid 8693] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8689] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8729] <... write resumed>) = 4 [pid 8693] <... futex resumed>) = 0 executing program [pid 8689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8729] close(3 [pid 8697] <... close resumed>) = 0 [pid 8693] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8689] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8729] <... close resumed>) = 0 [pid 8729] write(1, "executing program\n", 18 [pid 8697] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8689] <... futex resumed>) = 0 [pid 8729] <... write resumed>) = 18 [pid 8697] <... futex resumed>) = 1 [pid 8690] <... futex resumed>) = 0 [pid 8729] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8697] creat("./bus", 000 [pid 8690] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8689] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8729] <... futex resumed>) = 0 [pid 8690] <... futex resumed>) = 0 [pid 8729] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8690] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8729] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8729] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8729] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8729] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8729] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8729] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8730 attached [pid 8730] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8729] <... clone3 resumed> => {parent_tid=[8730]}, 88) = 8730 [pid 8730] <... rseq resumed>) = 0 [pid 8729] rt_sigprocmask(SIG_SETMASK, [], [pid 8730] set_robust_list(0x7ff7dbc929a0, 24 [pid 8729] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8730] <... set_robust_list resumed>) = 0 [pid 8729] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8730] rt_sigprocmask(SIG_SETMASK, [], [pid 8729] <... futex resumed>) = 0 [pid 8730] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8729] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8730] memfd_create("syzkaller", 0) = 3 [pid 8730] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8689] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8689] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8689] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8689] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8689] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8731 attached => {parent_tid=[8731]}, 88) = 8731 [pid 8689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8689] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8689] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8731] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8731] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8731] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8731] memfd_create("syzkaller", 0) = 4 [pid 8731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8690] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8690] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8690] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8690] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8690] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8732 attached => {parent_tid=[8732]}, 88) = 8732 [pid 8690] rt_sigprocmask(SIG_SETMASK, [], [pid 8732] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8732] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8732] rt_sigprocmask(SIG_SETMASK, [], [pid 8690] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8732] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8690] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8732] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8690] <... futex resumed>) = 0 [pid 8690] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8732] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 8732] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8732] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8690] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8732] <... futex resumed>) = 0 [pid 8690] <... futex resumed>) = 1 [pid 8732] memfd_create("syzkaller", 0 [pid 8690] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8732] <... memfd_create resumed>) = 4 [pid 8732] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8696] <... close resumed>) = 0 [pid 8696] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8694] <... futex resumed>) = 0 [pid 8696] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8694] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8696] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8694] <... futex resumed>) = 0 [pid 8696] creat("./bus", 000 [pid 8694] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8699] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 8699] ioctl(3, LOOP_CLR_FD) = 0 [pid 8699] close(3 [pid 8694] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 319.286183][ T8699] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8694] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8694] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8694] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8694] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8733 attached => {parent_tid=[8733]}, 88) = 8733 [pid 8694] rt_sigprocmask(SIG_SETMASK, [], [pid 8733] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8694] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8733] <... rseq resumed>) = 0 [pid 8694] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8733] set_robust_list(0x7ff7dbc719a0, 24 [pid 8694] <... futex resumed>) = 0 [pid 8694] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8733] <... set_robust_list resumed>) = 0 [pid 8733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8733] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8733] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8694] <... futex resumed>) = 0 [pid 8694] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8733] memfd_create("syzkaller", 0 [pid 8694] <... futex resumed>) = 0 [pid 8733] <... memfd_create resumed>) = 4 [pid 8694] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8730] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8699] <... close resumed>) = 0 [pid 8699] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8698] <... futex resumed>) = 0 [pid 8698] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8698] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8699] creat("./bus", 000 [pid 8698] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8698] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8698] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8698] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8698] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8734]}, 88) = 8734 [pid 8698] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8698] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8698] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8734 attached [pid 8731] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8734] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8734] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8734] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8734] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8734] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8698] <... futex resumed>) = 0 [pid 8698] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8698] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8734] memfd_create("syzkaller", 0) = 4 [pid 8734] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8732] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8733] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8730] <... write resumed>) = 16777216 [pid 8730] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8730] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8730] ioctl(4, LOOP_CLR_FD) = 0 [pid 8734] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8730] close(4) = 0 [pid 8730] close(3 [pid 8731] <... write resumed>) = 16777216 [pid 8731] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8693] <... write resumed>) = 16776704 [pid 8731] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 8731] ioctl(5, LOOP_SET_FD, 4 [pid 8733] <... write resumed>) = 16777216 [pid 8693] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8693] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8731] <... ioctl resumed>) = 0 [pid 8733] munmap(0x7ff7d3800000, 138412032 [pid 8732] <... write resumed>) = 16777216 [pid 8731] close(4 [pid 8732] munmap(0x7ff7d3800000, 138412032 [pid 8731] <... close resumed>) = 0 [ 320.254421][ T8731] loop3: detected capacity change from 0 to 32768 [pid 8731] close(5) = 0 [pid 8731] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8731] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8733] <... munmap resumed>) = 0 [pid 8732] <... munmap resumed>) = 0 [pid 8733] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 8733] ioctl(5, LOOP_SET_FD, 4 [pid 8732] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 320.296096][ T8731] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8731) [ 320.328131][ T8733] loop1: detected capacity change from 0 to 32768 [ 320.329794][ T8732] loop4: detected capacity change from 0 to 32768 [pid 8732] ioctl(5, LOOP_SET_FD, 4 [pid 8733] <... ioctl resumed>) = 0 [pid 8733] close(4) = 0 [pid 8733] close(5) = 0 [pid 8732] <... ioctl resumed>) = 0 [pid 8730] <... close resumed>) = 0 [pid 8732] close(4) = 0 [pid 8732] close(5) = 0 [pid 8732] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8732] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8733] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8730] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8733] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8729] <... futex resumed>) = 0 [ 320.354089][ T8731] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 320.381743][ T8731] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 320.391424][ T8732] BTRFS: device /dev/loop4 (7:4) using temp-fsid 2e07b059-0ac1-46d8-b489-1b4795a6dccb [pid 8730] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8729] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8729] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 320.404236][ T8732] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8732) [ 320.443775][ T8733] BTRFS: device /dev/loop1 (7:1) using temp-fsid 3cfdc55e-37b1-4461-8c9b-340ebdcb7f83 [pid 8730] creat("./bus", 000 [pid 8729] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8729] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8729] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8729] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8729] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8729] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8742 attached => {parent_tid=[8742]}, 88) = 8742 [pid 8742] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8742] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8742] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8729] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8742] <... futex resumed>) = 0 [pid 8729] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8742] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8742] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8729] <... futex resumed>) = 0 [pid 8742] memfd_create("syzkaller", 0 [pid 8729] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8742] <... memfd_create resumed>) = 4 [pid 8729] <... futex resumed>) = 0 [ 320.457125][ T8732] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8729] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8742] <... mmap resumed>) = 0x7ff7d3800000 [ 320.521281][ T8733] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8733) [ 320.536208][ T8732] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 320.614921][ T8733] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8734] <... write resumed>) = 16777216 [ 320.677878][ T8733] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 320.693965][ T8731] BTRFS info (device loop3): rebuilding free space tree [ 320.718634][ T8731] BTRFS info (device loop3): disabling free space tree [ 320.726764][ T8731] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 320.737792][ T8731] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8734] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8730] <... creat resumed>) = 3 [pid 8699] <... creat resumed>) = 3 [pid 8697] <... creat resumed>) = 3 [pid 8696] <... creat resumed>) = 3 [pid 8734] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 8734] ioctl(5, LOOP_SET_FD, 4 [pid 8730] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8699] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8697] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8696] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8730] <... futex resumed>) = 0 [pid 8699] <... futex resumed>) = 0 [pid 8696] <... futex resumed>) = 0 [pid 8730] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8699] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8696] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8697] <... futex resumed>) = 0 [pid 8734] <... ioctl resumed>) = 0 [pid 8697] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8734] close(4) = 0 [pid 8734] close(5) = 0 [pid 8734] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 320.770872][ T8731] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 320.788835][ T8734] loop0: detected capacity change from 0 to 32768 [ 320.808978][ T8732] BTRFS info (device loop4): rebuilding free space tree [ 320.841578][ T8734] BTRFS: device /dev/loop0 (7:0) using temp-fsid 2be4c98f-cad6-4cf1-ba16-ca8da1d7970a [ 320.870290][ T8732] BTRFS info (device loop4): disabling free space tree [ 320.898325][ T8732] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 320.909402][ T8734] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8734) [ 320.957941][ T8732] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 321.001419][ T8734] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 321.030908][ T8733] BTRFS info (device loop1): rebuilding free space tree [pid 8734] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8731] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 321.044786][ T8734] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 321.067320][ T8732] BTRFS info (device loop4): last unmount of filesystem 2e07b059-0ac1-46d8-b489-1b4795a6dccb [ 321.090535][ T8733] BTRFS info (device loop1): disabling free space tree [pid 8731] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8731] ioctl(4, LOOP_CLR_FD) = 0 [pid 8742] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 321.097498][ T8733] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 321.116216][ T8733] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8731] close(4) = 0 [pid 8731] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8689] <... futex resumed>) = 0 [pid 8731] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8689] exit_group(0 [pid 8731] <... futex resumed>) = ? [pid 8693] <... futex resumed>) = ? [pid 8689] <... exit_group resumed>) = ? [pid 8731] +++ exited with 0 +++ [pid 8693] +++ exited with 0 +++ [pid 8732] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8689] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8689, si_uid=0, si_status=0, si_utime=27 /* 0.27 s */, si_stime=129 /* 1.29 s */} --- [ 321.252660][ T8733] BTRFS info (device loop1): last unmount of filesystem 3cfdc55e-37b1-4461-8c9b-340ebdcb7f83 [pid 8732] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8732] ioctl(4, LOOP_CLR_FD) = 0 [pid 8732] close(4 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8800 attached [pid 8800] set_robust_list(0x5555693e0760, 24 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 8800 [pid 8800] <... set_robust_list resumed>) = 0 [ 321.298793][ T8734] BTRFS info (device loop0): rebuilding free space tree [pid 8800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8800] setpgid(0, 0) = 0 [pid 8800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8800] write(3, "1000", 4) = 4 [pid 8800] close(3) = 0 [ 321.347220][ T8734] BTRFS info (device loop0): disabling free space tree [ 321.370746][ T8734] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) executing program [pid 8800] write(1, "executing program\n", 18) = 18 [pid 8800] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8800] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8800] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 8733] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8800] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8733] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8800] <... mmap resumed>) = 0x7ff7dbc72000 [pid 8733] <... openat resumed>) = 4 [pid 8800] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 8733] ioctl(4, LOOP_CLR_FD [pid 8800] <... mprotect resumed>) = 0 [pid 8733] <... ioctl resumed>) = 0 [pid 8733] close(4 [pid 8800] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8800] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8801 attached [ 321.410417][ T8734] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 321.442758][ T8734] BTRFS info (device loop0): last unmount of filesystem 2be4c98f-cad6-4cf1-ba16-ca8da1d7970a [pid 8801] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8800] <... clone3 resumed> => {parent_tid=[8801]}, 88) = 8801 [pid 8801] <... rseq resumed>) = 0 [pid 8801] set_robust_list(0x7ff7dbc929a0, 24 [pid 8800] rt_sigprocmask(SIG_SETMASK, [], [pid 8801] <... set_robust_list resumed>) = 0 [pid 8800] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8801] rt_sigprocmask(SIG_SETMASK, [], [pid 8800] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8801] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8800] <... futex resumed>) = 0 [pid 8800] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8801] memfd_create("syzkaller", 0) = 3 [pid 8801] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8734] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8734] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 8734] ioctl(4, LOOP_CLR_FD) = 0 [pid 8734] close(4 [pid 8732] <... close resumed>) = 0 [pid 8732] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8742] <... write resumed>) = 16777216 [pid 8742] munmap(0x7ff7d3800000, 138412032 [pid 8732] <... futex resumed>) = 1 [pid 8690] <... futex resumed>) = 0 [pid 8690] exit_group(0 [pid 8697] <... futex resumed>) = ? [pid 8690] <... exit_group resumed>) = ? [pid 8697] +++ exited with 0 +++ [pid 8742] <... munmap resumed>) = 0 [pid 8742] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 8742] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8742] ioctl(5, LOOP_CLR_FD) = 0 [pid 8742] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8742] close(5) = 0 [pid 8742] close(4 [pid 8732] +++ exited with 0 +++ [pid 8690] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8690, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=98 /* 0.98 s */} --- [pid 8733] <... close resumed>) = 0 [pid 8733] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8733] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8694] <... futex resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8694] exit_group(0 [pid 8733] <... futex resumed>) = ? [pid 8696] <... futex resumed>) = ? [pid 8694] <... exit_group resumed>) = ? [pid 8733] +++ exited with 0 +++ [pid 5850] <... openat resumed>) = 3 [pid 8696] +++ exited with 0 +++ [pid 8694] +++ exited with 0 +++ [pid 5850] ioctl(3, LOOP_CLR_FD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8694, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=84 /* 0.84 s */} --- [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5850] close(3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5850] <... close resumed>) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8802 attached , child_tidptr=0x5555693e0750) = 8802 [pid 8802] set_robust_list(0x5555693e0760, 24 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 8802] <... set_robust_list resumed>) = 0 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 8803 ./strace-static-x86_64: Process 8803 attached [pid 8803] set_robust_list(0x5555693e0760, 24) = 0 [pid 8803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8803] setpgid(0, 0 [pid 8802] setpgid(0, 0 [pid 8803] <... setpgid resumed>) = 0 [pid 8803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8802] <... setpgid resumed>) = 0 [pid 8803] <... openat resumed>) = 3 [pid 8803] write(3, "1000", 4) = 4 [pid 8803] close(3) = 0 [pid 8803] write(1, "executing program\n", 18 [pid 8802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8803] <... write resumed>) = 18 [pid 8803] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000executing program ) = 0 [pid 8802] <... openat resumed>) = 3 [pid 8803] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8803] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8803] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8803] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8803] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8802] write(3, "1000", 4 [pid 8803] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8804 attached [pid 8804] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8803] <... clone3 resumed> => {parent_tid=[8804]}, 88) = 8804 [pid 8802] <... write resumed>) = 4 [pid 8803] rt_sigprocmask(SIG_SETMASK, [], [pid 8802] close(3 [pid 8803] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8803] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8804] <... rseq resumed>) = 0 [pid 8803] <... futex resumed>) = 0 [pid 8803] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8804] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8804] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8804] memfd_create("syzkaller", 0executing program ) = 3 [pid 8802] <... close resumed>) = 0 [pid 8802] write(1, "executing program\n", 18 [pid 8804] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8802] <... write resumed>) = 18 [pid 8804] <... mmap resumed>) = 0x7ff7d3800000 [pid 8802] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8802] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8802] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8802] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8734] <... close resumed>) = 0 [pid 8802] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8734] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8802] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8734] <... futex resumed>) = 1 [pid 8802] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8698] <... futex resumed>) = 0 [pid 8734] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 8805 attached [pid 8698] exit_group(0 [pid 8802] <... clone3 resumed> => {parent_tid=[8805]}, 88) = 8805 [pid 8805] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8802] rt_sigprocmask(SIG_SETMASK, [], [pid 8805] <... rseq resumed>) = 0 [pid 8802] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8805] set_robust_list(0x7ff7dbc929a0, 24 [pid 8802] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8699] <... futex resumed>) = ? [pid 8734] <... futex resumed>) = ? [pid 8698] <... exit_group resumed>) = ? [pid 8805] <... set_robust_list resumed>) = 0 [pid 8802] <... futex resumed>) = 0 [pid 8699] +++ exited with 0 +++ [pid 8805] rt_sigprocmask(SIG_SETMASK, [], [pid 8802] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8734] +++ exited with 0 +++ [pid 8698] +++ exited with 0 +++ [pid 8805] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8698, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=88 /* 0.88 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 8805] memfd_create("syzkaller", 0) = 3 [pid 8805] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8806 attached [pid 8805] <... mmap resumed>) = 0x7ff7d3800000 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 8806 [pid 8806] set_robust_list(0x5555693e0760, 24) = 0 [pid 8806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8806] setpgid(0, 0) = 0 [pid 8806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8806] write(3, "1000", 4) = 4 executing program [pid 8806] close(3) = 0 [pid 8806] write(1, "executing program\n", 18) = 18 [pid 8806] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8801] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8806] <... futex resumed>) = 0 [pid 8806] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8806] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8806] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8806] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8806] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[8807]}, 88) = 8807 [pid 8806] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 8807 attached NULL, 8) = 0 [pid 8807] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8806] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8807] <... rseq resumed>) = 0 [pid 8806] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8807] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8807] memfd_create("syzkaller", 0) = 3 [pid 8807] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8742] <... close resumed>) = 0 [pid 8742] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8729] <... futex resumed>) = 0 [pid 8742] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8729] exit_group(0 [pid 8742] <... futex resumed>) = ? [pid 8730] <... futex resumed>) = ? [pid 8729] <... exit_group resumed>) = ? [pid 8742] +++ exited with 0 +++ [pid 8730] +++ exited with 0 +++ [pid 8729] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8729, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=70 /* 0.70 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8808 attached [pid 8808] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8808 [pid 8808] <... set_robust_list resumed>) = 0 [pid 8808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8808] setpgid(0, 0) = 0 [pid 8808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8808] write(3, "1000", 4) = 4 [pid 8808] close(3) = 0 [pid 8808] write(1, "executing program\n", 18executing program ) = 18 [pid 8808] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8808] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8808] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8808] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8808] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8809 attached [pid 8809] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8808] <... clone3 resumed> => {parent_tid=[8809]}, 88) = 8809 [pid 8808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8808] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8808] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8809] <... rseq resumed>) = 0 [pid 8809] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8809] memfd_create("syzkaller", 0) = 3 [pid 8809] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8804] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8805] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8801] <... write resumed>) = 16777216 [pid 8801] munmap(0x7ff7d3800000, 138412032 [pid 8807] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8801] <... munmap resumed>) = 0 [pid 8801] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8801] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8801] close(3) = 0 [pid 8801] close(4) = 0 [pid 8801] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 322.438840][ T8801] loop3: detected capacity change from 0 to 32768 [pid 8801] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 322.587474][ T8801] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 322.617895][ T8801] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8809] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8805] <... write resumed>) = 16777216 [pid 8807] <... write resumed>) = 16777216 [pid 8805] munmap(0x7ff7d3800000, 138412032 [pid 8807] munmap(0x7ff7d3800000, 138412032 [pid 8805] <... munmap resumed>) = 0 [pid 8807] <... munmap resumed>) = 0 [pid 8805] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8807] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8805] <... openat resumed>) = 4 [pid 8807] <... openat resumed>) = 4 [pid 8805] ioctl(4, LOOP_SET_FD, 3 [pid 8807] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8804] <... write resumed>) = 16777216 [pid 8804] munmap(0x7ff7d3800000, 138412032 [pid 8805] <... ioctl resumed>) = 0 [pid 8807] close(3) = 0 [pid 8805] close(3 [pid 8807] close(4 [pid 8805] <... close resumed>) = 0 [pid 8807] <... close resumed>) = 0 [pid 8805] close(4) = 0 [pid 8805] mkdir("./file1", 0777 [pid 8807] mkdir("./file1", 0777 [pid 8805] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8807] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8805] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8807] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8804] <... munmap resumed>) = 0 [pid 8804] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 322.761222][ T8805] loop4: detected capacity change from 0 to 32768 [ 322.768115][ T8807] loop0: detected capacity change from 0 to 32768 [pid 8804] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8804] close(3) = 0 [pid 8804] close(4) = 0 [pid 8804] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 322.813759][ T8804] loop1: detected capacity change from 0 to 32768 [ 322.875418][ T8807] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 322.876207][ T8801] bcachefs: bch2_fs_get_tree() error: EINVAL [ 322.885137][ T8807] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8804] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8809] <... write resumed>) = 16777216 [pid 8801] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8809] munmap(0x7ff7d3800000, 138412032 [pid 8801] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 8801] ioctl(3, LOOP_CLR_FD) = 0 [pid 8801] close(3 [pid 8809] <... munmap resumed>) = 0 [pid 8809] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8809] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8809] ioctl(4, LOOP_CLR_FD) = 0 [pid 8809] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8809] close(4) = 0 [ 322.997144][ T8804] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 323.017104][ T8805] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 323.088228][ T8805] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 323.099366][ T8804] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8809] close(3 [pid 8807] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8807] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 8807] ioctl(3, LOOP_CLR_FD) = 0 [pid 8807] close(3 [pid 8801] <... close resumed>) = 0 [ 323.132842][ T8807] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8801] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8800] <... futex resumed>) = 0 [pid 8801] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8800] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8801] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8800] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8801] creat("./bus", 000) = 3 [pid 8801] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8800] <... futex resumed>) = 0 [pid 8800] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8800] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8801] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8800] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8800] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 8804] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8800] <... mmap resumed>) = 0x7ff7dbc51000 [pid 8800] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8804] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8800] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8804] <... openat resumed>) = 3 [pid 8800] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8838 attached => {parent_tid=[8838]}, 88) = 8838 [pid 8800] rt_sigprocmask(SIG_SETMASK, [], [pid 8838] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8800] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8838] <... rseq resumed>) = 0 [pid 8800] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8838] set_robust_list(0x7ff7dbc719a0, 24 [pid 8804] ioctl(3, LOOP_CLR_FD [pid 8800] <... futex resumed>) = 0 [ 323.263416][ T8804] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8804] <... ioctl resumed>) = 0 [pid 8838] <... set_robust_list resumed>) = 0 [pid 8800] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8804] close(3 [pid 8838] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8838] memfd_create("syzkaller", 0) = 4 [pid 8838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8809] <... close resumed>) = 0 [pid 8809] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8808] <... futex resumed>) = 0 [pid 8808] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8808] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8809] creat("./bus", 000 [pid 8805] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8805] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 8805] ioctl(3, LOOP_CLR_FD) = 0 [ 323.344955][ T8805] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8805] close(3 [pid 8808] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8808] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 8808] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8808] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8808] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8839 attached => {parent_tid=[8839]}, 88) = 8839 [pid 8808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8808] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8808] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8839] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8839] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8839] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8839] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8839] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8808] <... futex resumed>) = 0 [pid 8839] memfd_create("syzkaller", 0 [pid 8808] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8808] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8839] <... memfd_create resumed>) = 4 [pid 8839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8807] <... close resumed>) = 0 [pid 8807] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8806] <... futex resumed>) = 0 [pid 8806] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8807] creat("./bus", 000 [pid 8806] <... futex resumed>) = 0 [pid 8806] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 8806] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8806] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 8804] <... close resumed>) = 0 [pid 8804] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8804] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8806] <... mprotect resumed>) = 0 [pid 8803] <... futex resumed>) = 0 [pid 8806] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8803] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8806] <... rt_sigprocmask resumed>[], 8) = 0 [pid 8803] <... futex resumed>) = 1 [pid 8804] <... futex resumed>) = 0 [pid 8806] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 8804] creat("./bus", 000./strace-static-x86_64: Process 8840 attached [pid 8803] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8806] <... clone3 resumed> => {parent_tid=[8840]}, 88) = 8840 [pid 8806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8840] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8806] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8840] <... rseq resumed>) = 0 [pid 8806] <... futex resumed>) = 0 [pid 8806] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8840] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8840] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8840] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8840] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8840] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8806] <... futex resumed>) = 0 [pid 8806] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8806] <... futex resumed>) = 0 [pid 8840] memfd_create("syzkaller", 0 [pid 8806] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8803] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8803] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8803] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8803] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 8840] <... memfd_create resumed>) = 4 [pid 8803] <... mprotect resumed>) = 0 [pid 8840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8803] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8840] <... mmap resumed>) = 0x7ff7d3800000 [pid 8803] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 8841 attached => {parent_tid=[8841]}, 88) = 8841 [pid 8803] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8803] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8803] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8841] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8841] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8841] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8841] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8803] <... futex resumed>) = 0 [pid 8841] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8803] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8841] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8803] <... futex resumed>) = 0 [pid 8841] memfd_create("syzkaller", 0 [pid 8803] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8841] <... memfd_create resumed>) = 4 [pid 8841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8805] <... close resumed>) = 0 [pid 8805] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8805] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8802] <... futex resumed>) = 0 [pid 8802] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8805] <... futex resumed>) = 0 [pid 8802] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8805] creat("./bus", 000 [pid 8802] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8802] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8802] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8802] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8802] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 8838] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8802] <... clone3 resumed> => {parent_tid=[8842]}, 88) = 8842 [pid 8802] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 8842 attached NULL, 8) = 0 [pid 8802] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8802] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8842] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8842] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8842] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8842] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8842] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8802] <... futex resumed>) = 0 [pid 8842] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8802] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8842] <... futex resumed>) = 0 [pid 8802] <... futex resumed>) = 1 [pid 8842] memfd_create("syzkaller", 0) = 4 [pid 8842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8802] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8839] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8841] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8801] <... write resumed>) = 16776704 [pid 8840] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8801] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8801] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8842] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8838] <... write resumed>) = 16777216 [pid 8838] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8839] <... write resumed>) = 16777216 [pid 8838] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8839] munmap(0x7ff7d3800000, 138412032 [pid 8838] <... openat resumed>) = 5 [pid 8838] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8838] close(4) = 0 [pid 8839] <... munmap resumed>) = 0 [pid 8838] close(5 [pid 8839] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8838] <... close resumed>) = 0 [pid 8838] mkdir("./bus", 0777 [pid 8839] <... openat resumed>) = 5 [pid 8841] <... write resumed>) = 16777216 [pid 8838] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8839] ioctl(5, LOOP_SET_FD, 4 [pid 8838] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8841] munmap(0x7ff7d3800000, 138412032 [pid 8839] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 8839] ioctl(5, LOOP_CLR_FD) = 0 [ 324.418067][ T8838] loop3: detected capacity change from 0 to 32768 [pid 8839] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8839] close(5) = 0 [pid 8839] close(4 [pid 8841] <... munmap resumed>) = 0 [pid 8841] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [ 324.471739][ T8838] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8838) [pid 8841] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8841] close(4) = 0 [pid 8841] close(5) = 0 [ 324.535494][ T8841] loop1: detected capacity change from 0 to 32768 [ 324.537935][ T8838] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8841] mkdir("./bus", 0777 [pid 8809] <... creat resumed>) = 3 [pid 8807] <... creat resumed>) = 3 [pid 8805] <... creat resumed>) = 3 [pid 8804] <... creat resumed>) = 3 [pid 8841] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8840] <... write resumed>) = 16777216 [pid 8809] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8805] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8809] <... futex resumed>) = 0 [pid 8805] <... futex resumed>) = 0 [pid 8809] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8805] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8841] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8840] munmap(0x7ff7d3800000, 138412032 [pid 8804] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8807] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8807] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8804] <... futex resumed>) = 0 [pid 8804] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8840] <... munmap resumed>) = 0 [pid 8840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [ 324.608057][ T8838] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 324.627844][ T8841] BTRFS: device /dev/loop1 (7:1) using temp-fsid ddb73584-db94-42ef-b87c-d10291dbab97 [ 324.644593][ T8841] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8841) [pid 8840] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8840] close(4) = 0 [pid 8840] close(5) = 0 [pid 8840] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 324.660715][ T8840] loop0: detected capacity change from 0 to 32768 [ 324.697918][ T8841] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8840] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8842] <... write resumed>) = 16777216 [ 324.730004][ T8840] BTRFS: device /dev/loop0 (7:0) using temp-fsid 9ed5b2d3-c743-484e-afce-e2e60d9995da [ 324.749174][ T8841] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 8842] munmap(0x7ff7d3800000, 138412032 [pid 8839] <... close resumed>) = 0 [pid 8839] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8839] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8808] <... futex resumed>) = 0 [pid 8808] exit_group(0 [pid 8809] <... futex resumed>) = ? [pid 8808] <... exit_group resumed>) = ? [pid 8842] <... munmap resumed>) = 0 [pid 8809] +++ exited with 0 +++ [pid 8839] <... futex resumed>) = ? [pid 8842] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8839] +++ exited with 0 +++ [pid 8808] +++ exited with 0 +++ [pid 8842] <... openat resumed>) = 5 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8808, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=74 /* 0.74 s */} --- [pid 8842] ioctl(5, LOOP_SET_FD, 4 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 324.772972][ T8840] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8840) [ 324.802282][ T8840] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 324.814272][ T8840] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 8842] <... ioctl resumed>) = 0 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 8842] close(4) = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 8842] close(5 [pid 5845] close(3 [pid 8842] <... close resumed>) = 0 [pid 5845] <... close resumed>) = 0 [pid 8842] mkdir("./bus", 0777 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8842] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8842] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8864 ./strace-static-x86_64: Process 8864 attached [pid 8864] set_robust_list(0x5555693e0760, 24) = 0 [pid 8864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 324.825003][ T8842] loop4: detected capacity change from 0 to 32768 [ 324.848130][ T8842] BTRFS: device /dev/loop4 (7:4) using temp-fsid 3a77d85a-887d-4dd7-85a0-b070300a2554 [ 324.861327][ T8842] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8842) [pid 8864] setpgid(0, 0) = 0 [pid 8864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8864] write(3, "1000", 4) = 4 [pid 8864] close(3) = 0 executing program [pid 8864] write(1, "executing program\n", 18) = 18 [pid 8864] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8864] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8864] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8864] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 324.880612][ T8838] BTRFS info (device loop3): rebuilding free space tree [ 324.895254][ T8838] BTRFS info (device loop3): disabling free space tree [ 324.902960][ T8838] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 324.913670][ T8838] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 8864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8875 attached => {parent_tid=[8875]}, 88) = 8875 [pid 8864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8864] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8864] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8875] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8875] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8875] memfd_create("syzkaller", 0) = 3 [pid 8875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 324.925831][ T8842] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 324.942216][ T8842] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 324.952080][ T8838] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 325.048773][ T8841] BTRFS info (device loop1): rebuilding free space tree [ 325.114546][ T8841] BTRFS info (device loop1): disabling free space tree [ 325.122020][ T8841] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 325.132420][ T8841] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 325.163103][ T8841] BTRFS info (device loop1): last unmount of filesystem ddb73584-db94-42ef-b87c-d10291dbab97 [pid 8838] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8838] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8838] ioctl(4, LOOP_CLR_FD) = 0 [ 325.220293][ T8840] BTRFS info (device loop0): rebuilding free space tree [pid 8838] close(4 [pid 8841] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8841] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8841] ioctl(4, LOOP_CLR_FD) = 0 [pid 8841] close(4) = 0 [pid 8841] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8841] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8803] <... futex resumed>) = 0 [pid 8803] exit_group(0 [pid 8841] <... futex resumed>) = ? [pid 8804] <... futex resumed>) = ? [pid 8803] <... exit_group resumed>) = ? [pid 8841] +++ exited with 0 +++ [pid 8804] +++ exited with 0 +++ [pid 8803] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8803, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=78 /* 0.78 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = 0 [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 8909 attached , child_tidptr=0x5555693e0750) = 8909 [ 325.294717][ T8842] BTRFS info (device loop4): rebuilding free space tree [ 325.320070][ T8840] BTRFS info (device loop0): disabling free space tree [pid 8909] set_robust_list(0x5555693e0760, 24) = 0 [pid 8909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8909] setpgid(0, 0) = 0 [pid 8909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8909] write(3, "1000", 4) = 4 [pid 8909] close(3executing program ) = 0 [pid 8909] write(1, "executing program\n", 18) = 18 [pid 8909] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8909] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8909] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8909] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8909] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8909] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8909] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8910 attached => {parent_tid=[8910]}, 88) = 8910 [pid 8909] rt_sigprocmask(SIG_SETMASK, [], [pid 8910] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8909] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8910] <... rseq resumed>) = 0 [pid 8909] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8910] set_robust_list(0x7ff7dbc929a0, 24 [pid 8909] <... futex resumed>) = 0 [pid 8910] <... set_robust_list resumed>) = 0 [pid 8909] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 325.375195][ T8840] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 325.405471][ T8842] BTRFS info (device loop4): disabling free space tree [pid 8910] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8910] memfd_create("syzkaller", 0) = 3 [pid 8910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 325.426020][ T8840] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 325.438708][ T8842] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 325.503794][ T8842] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 325.518203][ T8840] BTRFS info (device loop0): last unmount of filesystem 9ed5b2d3-c743-484e-afce-e2e60d9995da [pid 8838] <... close resumed>) = 0 [pid 8838] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8800] <... futex resumed>) = 0 [pid 8838] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8800] exit_group(0 [pid 8838] <... futex resumed>) = ? [pid 8801] <... futex resumed>) = ? [pid 8800] <... exit_group resumed>) = ? [pid 8801] +++ exited with 0 +++ [pid 8838] +++ exited with 0 +++ [ 325.570515][ T8842] BTRFS info (device loop4): last unmount of filesystem 3a77d85a-887d-4dd7-85a0-b070300a2554 [pid 8875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8800] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8800, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=132 /* 1.32 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 8842] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8840] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8842] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 8840] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8842] <... openat resumed>) = 4 [pid 8840] <... openat resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 8911 [pid 8840] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 8911 attached [pid 8842] ioctl(4, LOOP_CLR_FD [pid 8911] set_robust_list(0x5555693e0760, 24 [pid 8842] <... ioctl resumed>) = 0 [pid 8840] <... ioctl resumed>) = 0 [pid 8911] <... set_robust_list resumed>) = 0 [pid 8842] close(4 [pid 8840] close(4 [pid 8911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8911] setpgid(0, 0) = 0 [pid 8911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8911] write(3, "1000", 4) = 4 [pid 8911] close(3) = 0 executing program [pid 8911] write(1, "executing program\n", 18) = 18 [pid 8911] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8911] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8911] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8911] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8911] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8912 attached => {parent_tid=[8912]}, 88) = 8912 [pid 8912] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8911] rt_sigprocmask(SIG_SETMASK, [], [pid 8912] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8911] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8911] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8912] rt_sigprocmask(SIG_SETMASK, [], [pid 8911] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8912] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8912] memfd_create("syzkaller", 0) = 3 [pid 8912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8842] <... close resumed>) = 0 [pid 8842] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8842] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8802] <... futex resumed>) = 0 [pid 8802] exit_group(0) = ? [pid 8842] <... futex resumed>) = ? [pid 8805] <... futex resumed>) = ? [pid 8805] +++ exited with 0 +++ [pid 8842] +++ exited with 0 +++ [pid 8840] <... close resumed>) = 0 [pid 8802] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8802, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=83 /* 0.83 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3 [pid 8840] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] <... close resumed>) = 0 [pid 8840] <... futex resumed>) = 1 [pid 8806] <... futex resumed>) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8840] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 8913 ./strace-static-x86_64: Process 8913 attached [pid 8913] set_robust_list(0x5555693e0760, 24) = 0 [pid 8913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8913] setpgid(0, 0) = 0 executing program [pid 8913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8913] write(3, "1000", 4) = 4 [pid 8913] close(3) = 0 [pid 8913] write(1, "executing program\n", 18 [pid 8806] exit_group(0 [pid 8913] <... write resumed>) = 18 [pid 8913] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8840] <... futex resumed>) = ? [pid 8807] <... futex resumed>) = ? [pid 8806] <... exit_group resumed>) = ? [pid 8913] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 8840] +++ exited with 0 +++ [pid 8807] +++ exited with 0 +++ [pid 8806] +++ exited with 0 +++ [pid 8913] <... rt_sigaction resumed>NULL, 8) = 0 [pid 8913] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8806, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=86 /* 0.86 s */} --- [pid 8913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 8913] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5843] <... restart_syscall resumed>) = 0 [pid 8913] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8913] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8914 attached [pid 8914] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8913] <... clone3 resumed> => {parent_tid=[8914]}, 88) = 8914 [pid 8914] <... rseq resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 8914] set_robust_list(0x7ff7dbc929a0, 24 [pid 8913] rt_sigprocmask(SIG_SETMASK, [], [pid 8914] <... set_robust_list resumed>) = 0 [pid 8913] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5843] <... openat resumed>) = 3 [pid 8914] rt_sigprocmask(SIG_SETMASK, [], [pid 8913] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 8914] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8913] <... futex resumed>) = 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 8914] memfd_create("syzkaller", 0 [pid 8913] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5843] close(3 [pid 8914] <... memfd_create resumed>) = 3 [pid 5843] <... close resumed>) = 0 [pid 8914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 8915 ./strace-static-x86_64: Process 8915 attached [pid 8915] set_robust_list(0x5555693e0760, 24) = 0 [pid 8915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8915] setpgid(0, 0) = 0 [pid 8915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 8915] write(3, "1000", 4) = 4 [pid 8915] close(3executing program ) = 0 [pid 8915] write(1, "executing program\n", 18) = 18 [pid 8915] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8915] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8915] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8915] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8915] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8916 attached [pid 8916] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 8916] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 8916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8915] <... clone3 resumed> => {parent_tid=[8916]}, 88) = 8916 [pid 8916] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8915] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8916] <... futex resumed>) = 0 [pid 8915] <... futex resumed>) = 1 [pid 8916] memfd_create("syzkaller", 0 [pid 8915] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8916] <... memfd_create resumed>) = 3 [pid 8916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8875] <... write resumed>) = 16777216 [pid 8875] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8875] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 8875] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8875] ioctl(4, LOOP_CLR_FD) = 0 [pid 8875] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8875] close(4) = 0 [pid 8875] close(3 [pid 8912] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8910] <... write resumed>) = 16777216 [pid 8910] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8910] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8910] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8910] close(3) = 0 [pid 8910] close(4) = 0 [pid 8910] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 8875] <... close resumed>) = 0 [pid 8910] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8875] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8875] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8864] <... futex resumed>) = 0 [pid 8864] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8875] <... futex resumed>) = 0 [pid 8864] <... futex resumed>) = 1 [pid 8875] creat("./bus", 000 [pid 8864] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8875] <... creat resumed>) = 3 [pid 8875] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8864] <... futex resumed>) = 0 [pid 8875] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8864] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8864] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 326.438512][ T8910] loop1: detected capacity change from 0 to 32768 [pid 8875] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8914] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8864] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8864] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8864] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8921]}, 88) = 8921 [pid 8864] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 8921 attached NULL, 8) = 0 [pid 8921] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8864] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8864] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8921] <... rseq resumed>) = 0 [pid 8921] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8921] rt_sigprocmask(SIG_SETMASK, [], [pid 8916] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8921] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8921] memfd_create("syzkaller", 0) = 4 [pid 8921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 326.669063][ T8910] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8916] <... write resumed>) = 16777216 [pid 8916] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8916] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 326.732562][ T8910] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8916] ioctl(4, LOOP_SET_FD, 3 [pid 8912] <... write resumed>) = 16777216 [pid 8912] munmap(0x7ff7d3800000, 138412032 [pid 8916] <... ioctl resumed>) = 0 [pid 8916] close(3) = 0 [pid 8916] close(4) = 0 [pid 8916] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 326.784156][ T8916] loop0: detected capacity change from 0 to 32768 [pid 8916] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8912] <... munmap resumed>) = 0 [pid 8912] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 8912] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8912] close(3) = 0 [pid 8912] close(4) = 0 [pid 8912] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 326.859749][ T8912] loop3: detected capacity change from 0 to 32768 [ 326.945637][ T8916] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8912] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8921] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8910] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 327.008401][ T8916] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 327.017114][ T8910] bcachefs: bch2_fs_get_tree() error: EINVAL [ 327.043005][ T8912] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8910] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 8910] ioctl(3, LOOP_CLR_FD) = 0 [ 327.097956][ T8912] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8910] close(3 [pid 8914] <... write resumed>) = 16777216 [pid 8914] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8914] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8914] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 8914] close(3) = 0 [pid 8914] close(4) = 0 [pid 8914] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 327.284532][ T8914] loop4: detected capacity change from 0 to 32768 [pid 8914] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 8916] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8916] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 8916] ioctl(3, LOOP_CLR_FD) = 0 [pid 8916] close(3 [pid 8910] <... close resumed>) = 0 [pid 8910] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8909] <... futex resumed>) = 0 [pid 8909] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8909] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 327.337866][ T8916] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8910] creat("./bus", 000 [pid 8912] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8909] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8909] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8909] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8909] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8909] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8909] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8946]}, 88) = 8946 [pid 8909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8909] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8909] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8946 attached [pid 8946] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8946] set_robust_list(0x7ff7dbc719a0, 24) = 0 [ 327.428289][ T8912] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8912] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8946] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8912] <... openat resumed>) = 3 [pid 8912] ioctl(3, LOOP_CLR_FD [pid 8946] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8946] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8909] <... futex resumed>) = 0 [pid 8912] <... ioctl resumed>) = 0 [pid 8946] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8909] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8946] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8946] memfd_create("syzkaller", 0 [pid 8912] close(3 [pid 8909] <... futex resumed>) = 0 [pid 8909] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8946] <... memfd_create resumed>) = 4 [pid 8916] <... close resumed>) = 0 [pid 8946] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8916] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8921] <... write resumed>) = 16777216 [pid 8916] <... futex resumed>) = 1 [pid 8915] <... futex resumed>) = 0 [pid 8916] creat("./bus", 000 [pid 8915] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 327.498515][ T8914] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 8915] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8921] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8915] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8915] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8915] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8915] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8947]}, 88) = 8947 [pid 8915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8915] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8915] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8947 attached [pid 8947] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8921] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8947] <... rseq resumed>) = 0 [pid 8947] set_robust_list(0x7ff7dbc719a0, 24 [pid 8921] <... openat resumed>) = 5 [pid 8921] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [ 327.551235][ T8914] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 8921] ioctl(5, LOOP_CLR_FD [pid 8947] <... set_robust_list resumed>) = 0 [pid 8921] <... ioctl resumed>) = 0 [pid 8947] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8947] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8947] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8915] <... futex resumed>) = 0 [pid 8915] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 8947] memfd_create("syzkaller", 0 [pid 8915] <... futex resumed>) = 0 [pid 8915] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8947] <... memfd_create resumed>) = 4 [pid 8947] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8921] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 8921] close(5) = 0 [pid 8921] close(4 [pid 8875] <... write resumed>) = 16776704 [pid 8875] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8875] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8914] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 8914] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 8914] ioctl(3, LOOP_CLR_FD) = 0 [ 327.819617][ T8914] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 8914] close(3 [pid 8921] <... close resumed>) = 0 [pid 8912] <... close resumed>) = 0 [pid 8912] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8911] <... futex resumed>) = 0 [pid 8911] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8912] creat("./bus", 000 [pid 8921] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8911] <... futex resumed>) = 0 [pid 8911] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8921] <... futex resumed>) = 1 [pid 8864] <... futex resumed>) = 0 [pid 8864] exit_group(0) = ? [pid 8875] <... futex resumed>) = ? [pid 8875] +++ exited with 0 +++ [pid 8911] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8911] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8911] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8911] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8948]}, 88) = 8948 [pid 8911] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8911] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8911] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8948 attached [pid 8948] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8948] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8948] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8948] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8948] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8911] <... futex resumed>) = 0 [pid 8911] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8911] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8948] <... futex resumed>) = 1 [pid 8948] memfd_create("syzkaller", 0) = 4 [pid 8946] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8921] +++ exited with 0 +++ [pid 8864] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8864, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=99 /* 0.99 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 8947] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 8949 attached [pid 8949] set_robust_list(0x5555693e0760, 24 [pid 8914] <... close resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 8949 [pid 8949] <... set_robust_list resumed>) = 0 [pid 8949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 8949] setpgid(0, 0) = 0 [pid 8914] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 8914] <... futex resumed>) = 1 [pid 8914] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8913] <... futex resumed>) = 0 [pid 8913] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8949] <... openat resumed>) = 3 [pid 8913] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8914] creat("./bus", 000 [pid 8949] write(3, "1000", 4) = 4 [pid 8949] close(3) = 0 executing program [pid 8949] write(1, "executing program\n", 18) = 18 [pid 8949] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8949] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 8949] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 8949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 8949] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8949] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8913] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8913] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8913] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8913] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8913] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[8950]}, 88) = 8950 [pid 8913] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8913] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8913] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 8950 attached [pid 8949] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 8951 attached => {parent_tid=[8951]}, 88) = 8951 [pid 8950] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 8950] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 8950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8950] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 8950] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8949] rt_sigprocmask(SIG_SETMASK, [], [pid 8950] <... futex resumed>) = 1 [pid 8913] <... futex resumed>) = 0 [pid 8913] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8913] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8950] memfd_create("syzkaller", 0 [pid 8951] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 8949] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 8951] <... rseq resumed>) = 0 [pid 8950] <... memfd_create resumed>) = 4 [pid 8949] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8950] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 8951] set_robust_list(0x7ff7dbc929a0, 24 [pid 8949] <... futex resumed>) = 0 [pid 8951] <... set_robust_list resumed>) = 0 [pid 8949] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 8951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8950] <... mmap resumed>) = 0x7ff7d3800000 [pid 8951] memfd_create("syzkaller", 0) = 3 [pid 8951] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8916] <... creat resumed>) = 3 [pid 8916] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8912] <... creat resumed>) = 3 [pid 8914] <... creat resumed>) = 3 [pid 8916] <... futex resumed>) = 0 [pid 8914] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8912] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8916] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8914] <... futex resumed>) = 0 [pid 8912] <... futex resumed>) = 0 [pid 8910] <... creat resumed>) = 3 [pid 8910] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8910] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8912] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8914] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8948] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8946] <... write resumed>) = 16777216 [pid 8946] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8947] <... write resumed>) = 16777216 [pid 8946] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 8947] munmap(0x7ff7d3800000, 138412032 [pid 8946] <... openat resumed>) = 5 [pid 8946] ioctl(5, LOOP_SET_FD, 4 [pid 8947] <... munmap resumed>) = 0 [pid 8946] <... ioctl resumed>) = 0 [pid 8947] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 8947] ioctl(5, LOOP_SET_FD, 4 [pid 8946] close(4) = 0 [pid 8946] close(5) = 0 [pid 8947] <... ioctl resumed>) = 0 [pid 8947] close(4) = 0 [pid 8947] close(5) = 0 [pid 8947] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8947] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 328.518989][ T8946] loop1: detected capacity change from 0 to 32768 [ 328.534828][ T8947] loop0: detected capacity change from 0 to 32768 [pid 8946] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8946] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8950] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 328.564074][ T8947] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (8947) [ 328.598598][ T8946] BTRFS: device /dev/loop1 (7:1) using temp-fsid c3e6ea16-1aab-47a6-a224-0750ea1816b4 [ 328.609194][ T8947] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 328.632065][ T8946] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (8946) [ 328.643551][ T8947] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 328.699641][ T8946] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 328.737748][ T8946] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 8951] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8948] <... write resumed>) = 16777216 [pid 8948] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8948] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 8948] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 8948] close(4) = 0 [pid 8948] close(5) = 0 [ 328.839634][ T8948] loop3: detected capacity change from 0 to 32768 [pid 8948] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 8948] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8950] <... write resumed>) = 16777216 [pid 8950] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8950] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 328.900455][ T8948] BTRFS: device /dev/loop3 (7:3) using temp-fsid d4c857dc-de33-4342-be0c-8dfac19a9d4e [ 328.917840][ T8947] BTRFS info (device loop0): rebuilding free space tree [ 328.935643][ T8948] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (8948) [pid 8950] ioctl(5, LOOP_SET_FD, 4 [pid 8951] <... write resumed>) = 16777216 [ 328.968234][ T8947] BTRFS info (device loop0): disabling free space tree [ 328.988038][ T8950] loop4: detected capacity change from 0 to 32768 [ 328.996871][ T8948] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8951] munmap(0x7ff7d3800000, 138412032) = 0 [pid 8950] <... ioctl resumed>) = 0 [pid 8950] close(4) = 0 [pid 8950] close(5 [pid 8951] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 8950] <... close resumed>) = 0 [pid 8951] <... openat resumed>) = 4 [pid 8950] mkdir("./bus", 0777 [ 329.018731][ T8947] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 329.034201][ T8946] BTRFS info (device loop1): rebuilding free space tree [ 329.058615][ T8948] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 8951] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8950] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 8950] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 8951] ioctl(4, LOOP_CLR_FD) = 0 [pid 8951] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 8951] close(4) = 0 [ 329.070268][ T8950] BTRFS: device /dev/loop4 (7:4) using temp-fsid 940a66f6-8629-47c3-b4d3-8a7bbf3697c9 [ 329.093818][ T8947] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 329.121381][ T8950] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (8950) [ 329.138103][ T8946] BTRFS info (device loop1): disabling free space tree [ 329.168248][ T8946] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 329.188518][ T8947] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 329.198789][ T8946] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 329.218271][ T8946] BTRFS info (device loop1): last unmount of filesystem c3e6ea16-1aab-47a6-a224-0750ea1816b4 [ 329.229258][ T8950] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 8951] close(3) = 0 [pid 8951] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8949] <... futex resumed>) = 0 [pid 8951] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 329.271687][ T8950] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 8949] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8951] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8949] <... futex resumed>) = 0 [pid 8951] creat("./bus", 000 [pid 8949] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8951] <... creat resumed>) = 3 [pid 8951] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 8946] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8951] <... futex resumed>) = 1 [pid 8949] <... futex resumed>) = 0 [pid 8951] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8949] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 8951] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 8949] <... futex resumed>) = 0 [pid 8951] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 8949] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 8946] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 8946] ioctl(4, LOOP_CLR_FD) = 0 [pid 8946] close(4 [pid 8949] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 8949] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 8949] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8949] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 8949] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9014]}, 88) = 9014 [pid 8949] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 8949] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8949] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9014 attached [ 329.412786][ T8948] BTRFS info (device loop3): rebuilding free space tree [pid 9014] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 8947] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8947] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9014] <... rseq resumed>) = 0 [pid 8947] <... openat resumed>) = 4 [pid 8947] ioctl(4, LOOP_CLR_FD) = 0 [pid 8947] close(4 [pid 9014] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9014] rt_sigprocmask(SIG_SETMASK, [], [pid 8946] <... close resumed>) = 0 [pid 9014] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9014] memfd_create("syzkaller", 0) = 4 [pid 9014] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 8946] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8909] <... futex resumed>) = 0 [pid 8909] exit_group(0 [pid 8946] ???( [pid 8909] <... exit_group resumed>) = ? [pid 8946] <... ??? resumed>) = ? [pid 8910] <... futex resumed>) = ? [pid 8946] +++ exited with 0 +++ [ 329.500268][ T8950] BTRFS info (device loop4): rebuilding free space tree [ 329.518317][ T8948] BTRFS info (device loop3): disabling free space tree [ 329.525295][ T8948] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 329.593715][ T8950] BTRFS info (device loop4): disabling free space tree [ 329.621835][ T8948] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 329.638509][ T8950] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 8910] +++ exited with 0 +++ [pid 8909] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8909, si_uid=0, si_status=0, si_utime=25 /* 0.25 s */, si_stime=102 /* 1.02 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [ 329.685153][ T8950] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9017 attached [pid 9017] set_robust_list(0x5555693e0760, 24 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 9017 [pid 9017] <... set_robust_list resumed>) = 0 [pid 9017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9017] setpgid(0, 0) = 0 [pid 9017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9017] write(3, "1000", 4) = 4 [pid 9017] close(3) = 0 executing program [pid 9017] write(1, "executing program\n", 18) = 18 [pid 9017] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9017] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9017] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8947] <... close resumed>) = 0 [pid 9017] rt_sigprocmask(SIG_BLOCK, ~[], [pid 8947] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 8947] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8915] <... futex resumed>) = 0 [pid 8915] exit_group(0 [pid 8916] <... futex resumed>) = ? [pid 8915] <... exit_group resumed>) = ? [pid 8916] +++ exited with 0 +++ [pid 8947] <... futex resumed>) = ? [pid 9017] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9017] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 8947] +++ exited with 0 +++ [pid 8915] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8915, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=84 /* 0.84 s */} --- ./strace-static-x86_64: Process 9018 attached [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 9018] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9017] <... clone3 resumed> => {parent_tid=[9018]}, 88) = 9018 [pid 5843] <... restart_syscall resumed>) = 0 [pid 9017] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9017] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9018] <... rseq resumed>) = 0 [pid 5843] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3 [pid 9018] set_robust_list(0x7ff7dbc929a0, 24 [pid 5843] <... close resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9018] <... set_robust_list resumed>) = 0 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 9019 [pid 9018] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9019 attached [pid 9019] set_robust_list(0x5555693e0760, 24 [pid 9018] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9019] <... set_robust_list resumed>) = 0 [pid 9018] memfd_create("syzkaller", 0 [pid 9019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9018] <... memfd_create resumed>) = 3 [pid 9018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9019] <... prctl resumed>) = 0 [pid 9019] setpgid(0, 0) = 0 [pid 9019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9019] write(3, "1000", 4) = 4 [pid 9019] close(3) = 0 [pid 9019] write(1, "executing program\n", 18executing program ) = 18 [pid 9019] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9019] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9019] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9019] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9019] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9019] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9020 attached => {parent_tid=[9020]}, 88) = 9020 [pid 9019] rt_sigprocmask(SIG_SETMASK, [], [pid 9020] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9019] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9019] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9019] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9020] <... rseq resumed>) = 0 [pid 9020] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9020] memfd_create("syzkaller", 0) = 3 [pid 9020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9014] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9018] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8951] <... write resumed>) = 16776704 [pid 8951] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 8951] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 330.239879][ T8948] BTRFS info (device loop3): last unmount of filesystem d4c857dc-de33-4342-be0c-8dfac19a9d4e [ 330.239947][ T8950] BTRFS info (device loop4): last unmount of filesystem 940a66f6-8629-47c3-b4d3-8a7bbf3697c9 [pid 9020] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 8948] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8948] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8950] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 8948] <... openat resumed>) = 4 [pid 8950] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 8950] ioctl(4, LOOP_CLR_FD) = 0 [pid 8950] close(4 [pid 8948] ioctl(4, LOOP_CLR_FD) = 0 [pid 8948] close(4 [pid 9014] <... write resumed>) = 16777216 [pid 9014] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9014] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9014] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9014] ioctl(5, LOOP_CLR_FD) = 0 [pid 9014] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9014] close(5) = 0 [pid 9014] close(4 [pid 8948] <... close resumed>) = 0 [pid 8948] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9020] <... write resumed>) = 16777216 [pid 8948] <... futex resumed>) = 1 [pid 8911] <... futex resumed>) = 0 [pid 8948] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 8911] exit_group(0 [pid 8948] <... futex resumed>) = ? [pid 8912] <... futex resumed>) = ? [pid 8911] <... exit_group resumed>) = ? [pid 8948] +++ exited with 0 +++ [pid 8912] +++ exited with 0 +++ [pid 9020] munmap(0x7ff7d3800000, 138412032 [pid 8911] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8911, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=83 /* 0.83 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 8950] <... close resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9021 ./strace-static-x86_64: Process 9021 attached [pid 9021] set_robust_list(0x5555693e0760, 24) = 0 [pid 9021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9018] <... write resumed>) = 16777216 [pid 8950] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9021] <... prctl resumed>) = 0 [pid 8950] <... futex resumed>) = 1 [pid 8913] <... futex resumed>) = 0 [pid 9021] setpgid(0, 0 [pid 9018] munmap(0x7ff7d3800000, 138412032executing program [pid 8950] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9021] <... setpgid resumed>) = 0 [pid 8913] exit_group(0 [pid 9021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9021] write(3, "1000", 4) = 4 [pid 9021] close(3) = 0 [pid 9021] write(1, "executing program\n", 18) = 18 [pid 9021] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9021] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9021] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9021] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 8950] <... futex resumed>) = ? [pid 8914] <... futex resumed>) = ? [pid 8913] <... exit_group resumed>) = ? [pid 8950] +++ exited with 0 +++ [pid 8914] +++ exited with 0 +++ [pid 9020] <... munmap resumed>) = 0 [pid 8913] +++ exited with 0 +++ [pid 9020] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8913, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=94 /* 0.94 s */} --- [pid 9020] <... openat resumed>) = 4 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 9020] ioctl(4, LOOP_SET_FD, 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9022 attached , child_tidptr=0x5555693e0750) = 9022 [pid 9022] set_robust_list(0x5555693e0760, 24) = 0 [pid 9022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9021] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9022] <... prctl resumed>) = 0 [pid 9021] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9022] setpgid(0, 0 [pid 9021] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9023 attached [pid 9022] <... setpgid resumed>) = 0 [pid 9020] <... ioctl resumed>) = 0 [pid 9023] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9020] close(3 [pid 9023] <... rseq resumed>) = 0 [pid 9020] <... close resumed>) = 0 [pid 9023] set_robust_list(0x7ff7dbc929a0, 24 [pid 9022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9020] close(4 [pid 9023] <... set_robust_list resumed>) = 0 [pid 9022] <... openat resumed>) = 3 [pid 9021] <... clone3 resumed> => {parent_tid=[9023]}, 88) = 9023 [pid 9020] <... close resumed>) = 0 [pid 9023] rt_sigprocmask(SIG_SETMASK, [], [pid 9021] rt_sigprocmask(SIG_SETMASK, [], [pid 9020] mkdir("./file1", 0777 [pid 9022] write(3, "1000", 4 [pid 9021] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9023] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9022] <... write resumed>) = 4 [pid 9021] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9020] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9023] memfd_create("syzkaller", 0 [pid 9022] close(3 [pid 9020] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9023] <... memfd_create resumed>) = 3 [pid 9022] <... close resumed>) = 0 [pid 9021] <... futex resumed>) = 0 [pid 9018] <... munmap resumed>) = 0 [pid 9023] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9022] write(1, "executing program\n", 18executing program [pid 9021] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9023] <... mmap resumed>) = 0x7ff7d3800000 [pid 9022] <... write resumed>) = 18 [pid 9022] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9022] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9018] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9022] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9018] <... openat resumed>) = 4 [pid 9022] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9018] ioctl(4, LOOP_SET_FD, 3 [pid 9022] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9022] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [ 330.700326][ T9020] loop0: detected capacity change from 0 to 32768 [pid 9022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9014] <... close resumed>) = 0 [pid 9022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9025]}, 88) = 9025 ./strace-static-x86_64: Process 9025 attached [pid 9022] rt_sigprocmask(SIG_SETMASK, [], [pid 9025] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9022] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9022] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9025] <... rseq resumed>) = 0 [pid 9022] <... futex resumed>) = 0 [pid 9025] set_robust_list(0x7ff7dbc929a0, 24 [pid 9022] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9014] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9025] <... set_robust_list resumed>) = 0 [pid 9025] rt_sigprocmask(SIG_SETMASK, [], [pid 9014] <... futex resumed>) = 1 [pid 8949] <... futex resumed>) = 0 [pid 9025] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 330.748574][ T9018] loop1: detected capacity change from 0 to 32768 [pid 9014] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9025] memfd_create("syzkaller", 0 [pid 9018] <... ioctl resumed>) = 0 [pid 8949] exit_group(0 [pid 9018] close(3 [pid 8951] <... futex resumed>) = ? [pid 8949] <... exit_group resumed>) = ? [pid 9018] <... close resumed>) = 0 [pid 8951] +++ exited with 0 +++ [pid 9018] close(4) = 0 [pid 9025] <... memfd_create resumed>) = 3 [pid 9018] mkdir("./file1", 0777 [pid 9025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9018] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9018] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9025] <... mmap resumed>) = 0x7ff7d3800000 [pid 9014] <... futex resumed>) = ? [pid 9014] +++ exited with 0 +++ [pid 8949] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8949, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=105 /* 1.05 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9032 ./strace-static-x86_64: Process 9032 attached [pid 9032] set_robust_list(0x5555693e0760, 24) = 0 [pid 9032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9032] setpgid(0, 0) = 0 [pid 9032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9032] write(3, "1000", 4) = 4 [pid 9032] close(3executing program ) = 0 [pid 9032] write(1, "executing program\n", 18) = 18 [ 330.883887][ T9020] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9032] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9032] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9032] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9040 attached => {parent_tid=[9040]}, 88) = 9040 [pid 9032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9032] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9040] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9032] <... futex resumed>) = 0 [pid 9040] <... rseq resumed>) = 0 [pid 9032] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9040] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 330.933118][ T9020] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9040] memfd_create("syzkaller", 0) = 3 [pid 9040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 330.993033][ T9018] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 331.040055][ T9018] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9023] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9020] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 331.185785][ T9020] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9020] ioctl(3, LOOP_CLR_FD) = 0 [pid 9020] close(3 [pid 9040] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9018] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9018] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9018] ioctl(3, LOOP_CLR_FD) = 0 [ 331.309016][ T9018] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9018] close(3 [pid 9025] <... write resumed>) = 16777216 [pid 9025] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9020] <... close resumed>) = 0 [pid 9020] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9019] <... futex resumed>) = 0 [pid 9020] <... futex resumed>) = 1 [pid 9019] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9025] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9020] creat("./bus", 000 [pid 9019] <... futex resumed>) = 0 [pid 9025] ioctl(4, LOOP_SET_FD, 3 [pid 9019] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9023] <... write resumed>) = 16777216 [pid 9025] <... ioctl resumed>) = 0 [pid 9025] close(3) = 0 [pid 9025] close(4) = 0 [pid 9023] munmap(0x7ff7d3800000, 138412032 [pid 9018] <... close resumed>) = 0 [pid 9025] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9025] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9018] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9017] <... futex resumed>) = 0 [pid 9018] creat("./bus", 000 [pid 9017] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9023] <... munmap resumed>) = 0 [pid 9019] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9023] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9019] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9023] <... openat resumed>) = 4 [pid 9019] <... futex resumed>) = 0 [ 331.582553][ T9025] loop4: detected capacity change from 0 to 32768 [pid 9023] ioctl(4, LOOP_SET_FD, 3 [pid 9019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9019] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9019] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9023] <... ioctl resumed>) = 0 [pid 9019] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9023] close(3 [pid 9019] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9048 attached [pid 9023] <... close resumed>) = 0 [pid 9048] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9023] close(4 [pid 9019] <... clone3 resumed> => {parent_tid=[9048]}, 88) = 9048 [pid 9048] <... rseq resumed>) = 0 [pid 9019] rt_sigprocmask(SIG_SETMASK, [], [pid 9048] set_robust_list(0x7ff7dbc719a0, 24 [pid 9019] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9017] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9048] <... set_robust_list resumed>) = 0 [pid 9017] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9048] rt_sigprocmask(SIG_SETMASK, [], [pid 9019] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9017] <... futex resumed>) = 0 [pid 9048] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9023] <... close resumed>) = 0 [pid 9019] <... futex resumed>) = 0 [pid 9017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9048] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9019] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9048] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9017] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9023] mkdir("./file1", 0777 [pid 9048] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9023] <... mkdir resumed>) = -1 EEXIST (File exists) [ 331.652095][ T9023] loop3: detected capacity change from 0 to 32768 [pid 9017] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9048] <... futex resumed>) = 1 [pid 9023] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9019] <... futex resumed>) = 0 [pid 9017] <... mprotect resumed>) = 0 [pid 9048] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9019] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9017] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9019] <... futex resumed>) = 0 [pid 9017] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9019] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9048] memfd_create("syzkaller", 0 [pid 9017] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9049 attached [pid 9048] <... memfd_create resumed>) = 4 [pid 9049] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9017] <... clone3 resumed> => {parent_tid=[9049]}, 88) = 9049 [pid 9049] <... rseq resumed>) = 0 [pid 9049] set_robust_list(0x7ff7dbc719a0, 24 [pid 9017] rt_sigprocmask(SIG_SETMASK, [], [pid 9049] <... set_robust_list resumed>) = 0 [pid 9017] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9049] rt_sigprocmask(SIG_SETMASK, [], [pid 9048] <... mmap resumed>) = 0x7ff7d3800000 [pid 9017] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9049] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9017] <... futex resumed>) = 0 [pid 9049] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9017] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9049] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9049] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9017] <... futex resumed>) = 0 [pid 9017] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9017] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9049] memfd_create("syzkaller", 0) = 4 [pid 9049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9040] <... write resumed>) = 16777216 [pid 9049] <... mmap resumed>) = 0x7ff7d3800000 [ 331.716625][ T9025] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 331.741303][ T9025] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9040] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9020] <... creat resumed>) = 3 [pid 9018] <... creat resumed>) = 3 [pid 9040] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9020] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9018] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9040] <... openat resumed>) = 4 [pid 9020] <... futex resumed>) = 0 [pid 9018] <... futex resumed>) = 0 [pid 9040] ioctl(4, LOOP_SET_FD, 3 [pid 9020] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9018] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9040] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9040] ioctl(4, LOOP_CLR_FD) = 0 [ 331.812555][ T9023] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 331.822030][ T9023] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9040] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9040] close(4) = 0 [pid 9040] close(3 [pid 9025] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9025] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 9025] ioctl(3, LOOP_CLR_FD) = 0 [ 331.933537][ T9025] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9025] close(3 [pid 9023] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9040] <... close resumed>) = 0 [pid 9023] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 9023] ioctl(3, LOOP_CLR_FD) = 0 [ 332.088341][ T9023] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9023] close(3 [pid 9040] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9032] <... futex resumed>) = 0 [pid 9032] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9040] creat("./bus", 000 [pid 9032] <... futex resumed>) = 0 [pid 9032] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9040] <... creat resumed>) = 3 [pid 9040] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9032] <... futex resumed>) = 0 [pid 9040] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9032] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9032] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9049] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9032] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9032] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9048] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9032] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9032] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9057 attached [pid 9057] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9032] <... clone3 resumed> => {parent_tid=[9057]}, 88) = 9057 [pid 9057] <... rseq resumed>) = 0 [pid 9032] rt_sigprocmask(SIG_SETMASK, [], [pid 9057] set_robust_list(0x7ff7dbc719a0, 24 [pid 9032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9057] <... set_robust_list resumed>) = 0 [pid 9032] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9057] rt_sigprocmask(SIG_SETMASK, [], [pid 9032] <... futex resumed>) = 0 [pid 9057] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9032] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9057] memfd_create("syzkaller", 0) = 4 [pid 9057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9025] <... close resumed>) = 0 [pid 9025] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9022] <... futex resumed>) = 0 [pid 9025] creat("./bus", 000 [pid 9022] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9022] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9022] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9022] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9058 attached [pid 9058] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9022] <... clone3 resumed> => {parent_tid=[9058]}, 88) = 9058 [pid 9058] <... rseq resumed>) = 0 [pid 9022] rt_sigprocmask(SIG_SETMASK, [], [pid 9058] set_robust_list(0x7ff7dbc719a0, 24 [pid 9022] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9058] <... set_robust_list resumed>) = 0 [pid 9022] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9058] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9023] <... close resumed>) = 0 [pid 9022] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9058] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9023] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9058] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9023] <... futex resumed>) = 1 [pid 9021] <... futex resumed>) = 0 [pid 9058] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9023] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9021] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9058] <... futex resumed>) = 1 [pid 9023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9022] <... futex resumed>) = 0 [pid 9021] <... futex resumed>) = 0 [pid 9058] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9023] creat("./bus", 000 [pid 9022] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9022] <... futex resumed>) = 0 [pid 9021] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9058] memfd_create("syzkaller", 0 [pid 9022] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9058] <... memfd_create resumed>) = 4 [pid 9058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9021] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9021] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9021] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9021] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9021] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9059 attached [pid 9059] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9021] <... clone3 resumed> => {parent_tid=[9059]}, 88) = 9059 [pid 9059] <... rseq resumed>) = 0 [pid 9021] rt_sigprocmask(SIG_SETMASK, [], [pid 9059] set_robust_list(0x7ff7dbc719a0, 24 [pid 9021] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9059] <... set_robust_list resumed>) = 0 [pid 9021] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9059] rt_sigprocmask(SIG_SETMASK, [], [pid 9021] <... futex resumed>) = 0 [pid 9059] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9021] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9059] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9059] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9021] <... futex resumed>) = 0 [pid 9059] memfd_create("syzkaller", 0 [pid 9021] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9059] <... memfd_create resumed>) = 4 [pid 9021] <... futex resumed>) = 0 [pid 9059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9021] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9059] <... mmap resumed>) = 0x7ff7d3800000 [pid 9048] <... write resumed>) = 16777216 [pid 9048] munmap(0x7ff7d3800000, 138412032 [pid 9049] <... write resumed>) = 16777216 [pid 9057] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9049] munmap(0x7ff7d3800000, 138412032 [pid 9048] <... munmap resumed>) = 0 [pid 9049] <... munmap resumed>) = 0 [pid 9048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 9048] ioctl(5, LOOP_SET_FD, 4 [pid 9049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 9049] ioctl(5, LOOP_SET_FD, 4 [pid 9048] <... ioctl resumed>) = 0 [pid 9049] <... ioctl resumed>) = 0 [pid 9049] close(4 [pid 9048] close(4) = 0 [pid 9048] close(5) = 0 [pid 9048] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9049] <... close resumed>) = 0 [pid 9049] close(5) = 0 [pid 9049] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9048] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 332.738919][ T9048] loop0: detected capacity change from 0 to 32768 [ 332.739865][ T9049] loop1: detected capacity change from 0 to 32768 [ 332.780483][ T9049] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9049) [pid 9049] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 332.878863][ T9048] BTRFS: device /dev/loop0 (7:0) using temp-fsid c11679d5-61b0-449b-8b2c-334ec423b6c0 [ 332.891742][ T9049] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 332.908569][ T9048] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9048) [ 332.925724][ T9049] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 9058] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9059] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9040] <... write resumed>) = 16776704 [ 332.997854][ T9048] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 333.037843][ T9048] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 9040] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 333.212426][ T9049] BTRFS info (device loop1): rebuilding free space tree [pid 9040] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9025] <... creat resumed>) = 3 [pid 9023] <... creat resumed>) = 3 [pid 9023] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9025] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9023] <... futex resumed>) = 0 [pid 9025] <... futex resumed>) = 0 [pid 9023] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9025] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9057] <... write resumed>) = 16777216 [ 333.304813][ T9048] BTRFS info (device loop0): rebuilding free space tree [ 333.340738][ T9049] BTRFS info (device loop1): disabling free space tree [pid 9057] munmap(0x7ff7d3800000, 138412032) = 0 [ 333.371185][ T9048] BTRFS info (device loop0): disabling free space tree [ 333.377853][ T9049] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 333.378910][ T9048] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9057] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9057] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9057] ioctl(5, LOOP_CLR_FD) = 0 [pid 9057] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [ 333.427853][ T9049] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 333.437794][ T9048] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9057] close(5) = 0 [ 333.508066][ T9048] BTRFS info (device loop0): last unmount of filesystem c11679d5-61b0-449b-8b2c-334ec423b6c0 [ 333.548257][ T9049] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9057] close(4 [pid 9058] <... write resumed>) = 16777216 [pid 9048] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9058] munmap(0x7ff7d3800000, 138412032 [pid 9048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9048] ioctl(4, LOOP_CLR_FD) = 0 [pid 9048] close(4 [pid 9058] <... munmap resumed>) = 0 [pid 9058] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 9058] ioctl(5, LOOP_SET_FD, 4 [pid 9059] <... write resumed>) = 16777216 [pid 9049] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9058] <... ioctl resumed>) = 0 [pid 9059] munmap(0x7ff7d3800000, 138412032 [pid 9058] close(4 [pid 9049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9058] <... close resumed>) = 0 [pid 9049] <... openat resumed>) = 4 [pid 9058] close(5 [pid 9049] ioctl(4, LOOP_CLR_FD [pid 9058] <... close resumed>) = 0 [pid 9049] <... ioctl resumed>) = 0 [pid 9058] mkdir("./bus", 0777 [pid 9049] close(4 [pid 9058] <... mkdir resumed>) = -1 EEXIST (File exists) [ 333.682501][ T9058] loop4: detected capacity change from 0 to 32768 [pid 9058] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9059] <... munmap resumed>) = 0 [ 333.735735][ T9058] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9058) [pid 9059] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 9059] ioctl(5, LOOP_SET_FD, 4 [pid 9057] <... close resumed>) = 0 [pid 9059] <... ioctl resumed>) = 0 [pid 9057] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9059] close(4 [pid 9057] <... futex resumed>) = 1 [pid 9057] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9059] <... close resumed>) = 0 [pid 9032] <... futex resumed>) = 0 [pid 9059] close(5 [pid 9032] exit_group(0 [pid 9059] <... close resumed>) = 0 [pid 9032] <... exit_group resumed>) = ? [pid 9059] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 333.788263][ T9059] loop3: detected capacity change from 0 to 32768 [ 333.825528][ T9058] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9059] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9057] <... futex resumed>) = ? [pid 9040] <... futex resumed>) = ? [pid 9040] +++ exited with 0 +++ [ 333.843366][ T9059] BTRFS: device /dev/loop3 (7:3) using temp-fsid e5d1542f-430f-40bb-822a-664dc7e46554 [ 333.872671][ T9058] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 9057] +++ exited with 0 +++ [pid 9032] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9032, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=99 /* 0.99 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9095 attached , child_tidptr=0x5555693e0750) = 9095 [ 333.898094][ T9059] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9059) [pid 9095] set_robust_list(0x5555693e0760, 24) = 0 [pid 9095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9095] setpgid(0, 0) = 0 [pid 9095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9095] write(3, "1000", 4) = 4 [pid 9095] close(3executing program ) = 0 [pid 9095] write(1, "executing program\n", 18) = 18 [pid 9095] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9095] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9095] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9100]}, 88) = 9100 [pid 9095] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9100 attached NULL, 8) = 0 [pid 9095] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9095] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9100] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9100] set_robust_list(0x7ff7dbc929a0, 24) = 0 [ 333.993609][ T9059] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9100] memfd_create("syzkaller", 0) = 3 [pid 9100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 334.107915][ T9059] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 9049] <... close resumed>) = 0 [pid 9048] <... close resumed>) = 0 [pid 9048] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9048] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9019] <... futex resumed>) = 0 [pid 9049] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9019] exit_group(0 [pid 9048] <... futex resumed>) = ? [pid 9020] <... futex resumed>) = ? [pid 9019] <... exit_group resumed>) = ? [pid 9048] +++ exited with 0 +++ [pid 9020] +++ exited with 0 +++ [pid 9049] <... futex resumed>) = 1 [pid 9019] +++ exited with 0 +++ [pid 9017] <... futex resumed>) = 0 [pid 9049] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9017] exit_group(0 [pid 9049] <... futex resumed>) = ? [pid 9018] <... futex resumed>) = ? [pid 9017] <... exit_group resumed>) = ? [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9019, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=98 /* 0.98 s */} --- [pid 9049] +++ exited with 0 +++ [pid 9018] +++ exited with 0 +++ [pid 9017] +++ exited with 0 +++ [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9017, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=91 /* 0.91 s */} --- [pid 5843] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5844] <... openat resumed>) = 3 [pid 5843] <... openat resumed>) = 3 [ 334.169154][ T9058] BTRFS info (device loop4): rebuilding free space tree [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5843] ioctl(3, LOOP_CLR_FD [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] close(3 [pid 5843] close(3 [pid 5844] <... close resumed>) = 0 [pid 5843] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9120 attached [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 9120 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 9121 ./strace-static-x86_64: Process 9121 attached [pid 9120] set_robust_list(0x5555693e0760, 24 [pid 9121] set_robust_list(0x5555693e0760, 24 [pid 9120] <... set_robust_list resumed>) = 0 [pid 9121] <... set_robust_list resumed>) = 0 [pid 9121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9121] <... prctl resumed>) = 0 [pid 9120] <... prctl resumed>) = 0 [pid 9121] setpgid(0, 0) = 0 [pid 9120] setpgid(0, 0) = 0 [pid 9121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9121] <... openat resumed>) = 3 [pid 9121] write(3, "1000", 4 [pid 9120] <... openat resumed>) = 3 executing program [pid 9121] <... write resumed>) = 4 [pid 9120] write(3, "1000", 4 [pid 9121] close(3 [pid 9120] <... write resumed>) = 4 [pid 9121] <... close resumed>) = 0 [pid 9120] close(3 [pid 9121] write(1, "executing program\n", 18 [pid 9120] <... close resumed>) = 0 executing program [pid 9121] <... write resumed>) = 18 [ 334.282561][ T9058] BTRFS info (device loop4): disabling free space tree [pid 9120] write(1, "executing program\n", 18 [pid 9121] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9120] <... write resumed>) = 18 [pid 9120] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9121] <... futex resumed>) = 0 [pid 9120] <... futex resumed>) = 0 [pid 9121] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9120] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9121] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9121] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9120] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [ 334.332316][ T9058] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 334.342985][ T9058] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 334.356689][ T9059] BTRFS info (device loop3): rebuilding free space tree [pid 9120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9121] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9121] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9121] <... mprotect resumed>) = 0 [pid 9120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9120] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9121] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9120] <... mprotect resumed>) = 0 [pid 9120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9121] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9129 attached ./strace-static-x86_64: Process 9128 attached [pid 9129] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9121] <... clone3 resumed> => {parent_tid=[9129]}, 88) = 9129 [pid 9120] <... clone3 resumed> => {parent_tid=[9128]}, 88) = 9128 [pid 9128] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9121] rt_sigprocmask(SIG_SETMASK, [], [pid 9120] rt_sigprocmask(SIG_SETMASK, [], [pid 9128] <... rseq resumed>) = 0 [pid 9120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9128] set_robust_list(0x7ff7dbc929a0, 24 [pid 9120] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9128] <... set_robust_list resumed>) = 0 [pid 9121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9120] <... futex resumed>) = 0 [pid 9128] rt_sigprocmask(SIG_SETMASK, [], [pid 9121] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9129] <... rseq resumed>) = 0 [pid 9128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9121] <... futex resumed>) = 0 [pid 9120] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9129] set_robust_list(0x7ff7dbc929a0, 24 [pid 9128] memfd_create("syzkaller", 0 [pid 9121] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9129] <... set_robust_list resumed>) = 0 [pid 9128] <... memfd_create resumed>) = 3 [pid 9129] rt_sigprocmask(SIG_SETMASK, [], [pid 9128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9129] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9128] <... mmap resumed>) = 0x7ff7d3800000 [pid 9129] memfd_create("syzkaller", 0) = 3 [ 334.388494][ T9058] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9058] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 334.432606][ T9059] BTRFS info (device loop3): disabling free space tree [ 334.457819][ T9059] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9058] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9058] ioctl(4, LOOP_CLR_FD) = 0 [pid 9058] close(4) = 0 [pid 9058] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9022] <... futex resumed>) = 0 [pid 9058] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9022] exit_group(0 [pid 9058] <... futex resumed>) = ? [pid 9025] <... futex resumed>) = ? [pid 9022] <... exit_group resumed>) = ? [pid 9058] +++ exited with 0 +++ [pid 9025] +++ exited with 0 +++ [pid 9022] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9022, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=90 /* 0.90 s */} --- [ 334.494872][ T9059] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = 0 [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9130 attached , child_tidptr=0x5555693e0750) = 9130 [pid 9130] set_robust_list(0x5555693e0760, 24) = 0 [pid 9130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9130] setpgid(0, 0) = 0 [pid 9130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9130] write(3, "1000", 4) = 4 [pid 9130] close(3executing program ) = 0 [pid 9130] write(1, "executing program\n", 18) = 18 [pid 9130] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 334.578129][ T9059] BTRFS info (device loop3): last unmount of filesystem e5d1542f-430f-40bb-822a-664dc7e46554 [pid 9130] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9130] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9131 attached => {parent_tid=[9131]}, 88) = 9131 [pid 9131] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9131] <... rseq resumed>) = 0 [pid 9059] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9130] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9131] set_robust_list(0x7ff7dbc929a0, 24 [pid 9059] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9130] <... futex resumed>) = 0 [pid 9131] <... set_robust_list resumed>) = 0 [pid 9130] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9059] <... openat resumed>) = 4 [pid 9059] ioctl(4, LOOP_CLR_FD) = 0 [pid 9131] rt_sigprocmask(SIG_SETMASK, [], [pid 9059] close(4 [pid 9131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9131] memfd_create("syzkaller", 0) = 3 [pid 9131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9059] <... close resumed>) = 0 [pid 9059] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9021] <... futex resumed>) = 0 [pid 9059] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9021] exit_group(0 [pid 9059] <... futex resumed>) = ? [pid 9023] <... futex resumed>) = ? [pid 9021] <... exit_group resumed>) = ? [pid 9059] +++ exited with 0 +++ [pid 9023] +++ exited with 0 +++ [pid 9021] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9021, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=84 /* 0.84 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9132 ./strace-static-x86_64: Process 9132 attached [pid 9132] set_robust_list(0x5555693e0760, 24) = 0 [pid 9132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9132] setpgid(0, 0) = 0 [pid 9132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9132] write(3, "1000", 4) = 4 [pid 9132] close(3) = 0 [pid 9132] write(1, "executing program\n", 18executing program ) = 18 [pid 9132] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9132] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9132] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9133 attached [pid 9133] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9132] <... clone3 resumed> => {parent_tid=[9133]}, 88) = 9133 [pid 9133] <... rseq resumed>) = 0 [pid 9132] rt_sigprocmask(SIG_SETMASK, [], [pid 9133] set_robust_list(0x7ff7dbc929a0, 24 [pid 9132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9133] <... set_robust_list resumed>) = 0 [pid 9132] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9133] rt_sigprocmask(SIG_SETMASK, [], [pid 9132] <... futex resumed>) = 0 [pid 9133] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9132] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9133] memfd_create("syzkaller", 0) = 3 [pid 9133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9100] <... write resumed>) = 16777216 [pid 9100] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9100] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9100] ioctl(4, LOOP_CLR_FD) = 0 [pid 9100] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9100] close(4) = 0 [pid 9100] close(3 [pid 9128] <... write resumed>) = 16777216 [pid 9128] munmap(0x7ff7d3800000, 138412032 [pid 9129] <... write resumed>) = 16777216 [pid 9128] <... munmap resumed>) = 0 [pid 9129] munmap(0x7ff7d3800000, 138412032 [pid 9128] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9128] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9128] close(3) = 0 [pid 9128] close(4) = 0 [pid 9128] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9128] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9129] <... munmap resumed>) = 0 [pid 9129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9129] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9129] close(3) = 0 [pid 9129] close(4) = 0 [pid 9129] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 335.389531][ T9128] loop1: detected capacity change from 0 to 32768 [ 335.415391][ T9129] loop0: detected capacity change from 0 to 32768 [pid 9129] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 335.486312][ T9128] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 335.545406][ T9128] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9131] <... write resumed>) = 16777216 [ 335.607416][ T9129] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9131] munmap(0x7ff7d3800000, 138412032 [pid 9100] <... close resumed>) = 0 [pid 9100] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9131] <... munmap resumed>) = 0 [pid 9100] <... futex resumed>) = 1 [pid 9100] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9095] <... futex resumed>) = 0 [pid 9131] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9095] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9100] <... futex resumed>) = 0 [pid 9095] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9131] <... openat resumed>) = 4 [pid 9131] ioctl(4, LOOP_SET_FD, 3 [pid 9100] creat("./bus", 000) = 3 [pid 9100] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9100] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9095] <... futex resumed>) = 0 [pid 9095] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9100] <... futex resumed>) = 0 [pid 9100] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9095] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9131] <... ioctl resumed>) = 0 [pid 9128] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9128] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9131] close(3 [pid 9128] <... openat resumed>) = 3 [pid 9131] <... close resumed>) = 0 [pid 9128] ioctl(3, LOOP_CLR_FD [pid 9131] close(4) = 0 [pid 9131] mkdir("./file1", 0777 [pid 9128] <... ioctl resumed>) = 0 [ 335.667949][ T9129] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 335.684483][ T9128] bcachefs: bch2_fs_get_tree() error: EINVAL [ 335.703952][ T9131] loop4: detected capacity change from 0 to 32768 [pid 9131] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9128] close(3 [pid 9131] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9095] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9095] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9095] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9148 attached [pid 9148] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9095] <... clone3 resumed> => {parent_tid=[9148]}, 88) = 9148 [pid 9148] <... rseq resumed>) = 0 [pid 9095] rt_sigprocmask(SIG_SETMASK, [], [pid 9148] set_robust_list(0x7ff7dbc719a0, 24 [pid 9095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9148] <... set_robust_list resumed>) = 0 [pid 9095] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9148] rt_sigprocmask(SIG_SETMASK, [], [pid 9095] <... futex resumed>) = 0 [pid 9148] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9095] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9148] memfd_create("syzkaller", 0) = 4 [pid 9148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9133] <... write resumed>) = 16777216 [pid 9133] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9133] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 335.900144][ T9131] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 335.909379][ T9131] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9133] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9128] <... close resumed>) = 0 [pid 9128] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9120] <... futex resumed>) = 0 [pid 9120] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9120] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9128] creat("./bus", 000 [pid 9129] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9133] close(3) = 0 [pid 9129] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9133] close(4 [pid 9129] <... openat resumed>) = 3 [pid 9133] <... close resumed>) = 0 [pid 9129] ioctl(3, LOOP_CLR_FD [pid 9133] mkdir("./file1", 0777 [pid 9129] <... ioctl resumed>) = 0 [pid 9133] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9129] close(3 [ 335.960463][ T9133] loop3: detected capacity change from 0 to 32768 [ 335.967315][ T9129] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9133] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9120] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9120] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9120] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9158 attached => {parent_tid=[9158]}, 88) = 9158 [pid 9120] rt_sigprocmask(SIG_SETMASK, [], [pid 9158] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9120] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9158] <... rseq resumed>) = 0 [pid 9120] <... futex resumed>) = 0 [pid 9120] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9158] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9158] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9158] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9158] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9120] <... futex resumed>) = 0 [pid 9120] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9120] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9158] memfd_create("syzkaller", 0) = 4 [pid 9158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 336.156567][ T9133] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 336.188309][ T9133] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9148] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9131] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9131] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 9131] ioctl(3, LOOP_CLR_FD) = 0 [ 336.218860][ T9131] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9131] close(3 [pid 9129] <... close resumed>) = 0 [pid 9133] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9129] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9129] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9121] <... futex resumed>) = 0 [pid 9133] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 9121] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9133] ioctl(3, LOOP_CLR_FD [pid 9121] <... futex resumed>) = 1 [pid 9133] <... ioctl resumed>) = 0 [pid 9129] <... futex resumed>) = 0 [ 336.414550][ T9133] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9121] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9129] creat("./bus", 000 [pid 9133] close(3 [pid 9121] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9121] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9121] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9121] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9164]}, 88) = 9164 [pid 9121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9121] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9164 attached ) = 0 [pid 9121] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9164] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9164] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9164] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9164] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9121] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9121] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9121] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9164] <... futex resumed>) = 1 [pid 9121] <... futex resumed>) = 0 [pid 9121] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=48000000} [pid 9164] memfd_create("syzkaller", 0) = 4 [pid 9164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9131] <... close resumed>) = 0 [pid 9158] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9148] <... write resumed>) = 16777216 [pid 9131] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9148] munmap(0x7ff7d3800000, 138412032 [pid 9131] <... futex resumed>) = 1 [pid 9130] <... futex resumed>) = 0 [pid 9130] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9130] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9131] creat("./bus", 000 [pid 9148] <... munmap resumed>) = 0 [pid 9148] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9148] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9148] ioctl(5, LOOP_CLR_FD) = 0 [pid 9130] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9130] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9130] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9165]}, 88) = 9165 ./strace-static-x86_64: Process 9165 attached [pid 9130] rt_sigprocmask(SIG_SETMASK, [], [pid 9165] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9165] <... rseq resumed>) = 0 [pid 9130] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9165] set_robust_list(0x7ff7dbc719a0, 24 [pid 9130] <... futex resumed>) = 0 [pid 9165] <... set_robust_list resumed>) = 0 [pid 9130] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9165] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9165] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9165] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9130] <... futex resumed>) = 0 [pid 9165] memfd_create("syzkaller", 0 [pid 9130] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9148] ioctl(5, LOOP_SET_FD, 4 [pid 9130] <... futex resumed>) = 0 [pid 9165] <... memfd_create resumed>) = 4 [pid 9148] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9130] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9148] close(5) = 0 [pid 9165] <... mmap resumed>) = 0x7ff7d3800000 [pid 9148] close(4 [pid 9133] <... close resumed>) = 0 [pid 9133] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9132] <... futex resumed>) = 0 [pid 9133] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9132] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9132] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9133] creat("./bus", 000 [pid 9132] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9132] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9132] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9166 attached => {parent_tid=[9166]}, 88) = 9166 [pid 9132] rt_sigprocmask(SIG_SETMASK, [], [pid 9166] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9166] <... rseq resumed>) = 0 [pid 9132] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9166] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9166] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9166] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9166] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9132] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9132] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9166] <... futex resumed>) = 0 [pid 9166] memfd_create("syzkaller", 0 [pid 9132] <... futex resumed>) = 1 [pid 9166] <... memfd_create resumed>) = 4 [pid 9132] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9100] <... write resumed>) = 16776704 [pid 9100] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9100] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9148] <... close resumed>) = 0 [pid 9148] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9095] <... futex resumed>) = 0 [pid 9148] <... futex resumed>) = 1 [pid 9095] exit_group(0 [pid 9100] <... futex resumed>) = ? [pid 9095] <... exit_group resumed>) = ? [pid 9100] +++ exited with 0 +++ [pid 9164] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9158] <... write resumed>) = 16777216 [pid 9158] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9158] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 9148] +++ exited with 0 +++ [pid 9095] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9095, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=103 /* 1.03 s */} --- [pid 9158] ioctl(5, LOOP_SET_FD, 4 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9167 ./strace-static-x86_64: Process 9167 attached [pid 9165] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9167] set_robust_list(0x5555693e0760, 24) = 0 [pid 9167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9167] setpgid(0, 0) = 0 [pid 9167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9167] write(3, "1000", 4 [pid 9158] <... ioctl resumed>) = 0 [pid 9167] <... write resumed>) = 4 [pid 9158] close(4 [pid 9167] close(3 [pid 9158] <... close resumed>) = 0 executing program [pid 9167] <... close resumed>) = 0 [pid 9158] close(5 [pid 9167] write(1, "executing program\n", 18 [pid 9158] <... close resumed>) = 0 [ 337.104739][ T9158] loop1: detected capacity change from 0 to 32768 [pid 9167] <... write resumed>) = 18 [pid 9158] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9158] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9167] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9167] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9167] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9167] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9167] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9167] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9168]}, 88) = 9168 [pid 9167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9167] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9167] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9168 attached [pid 9168] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9168] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9168] memfd_create("syzkaller", 0) = 3 [pid 9168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 337.149953][ T9158] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9158) [ 337.261035][ T9158] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 337.284214][ T9158] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 9166] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9129] <... creat resumed>) = 3 [pid 9133] <... creat resumed>) = 3 [pid 9131] <... creat resumed>) = 3 [pid 9133] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9131] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9129] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9133] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9131] <... futex resumed>) = 0 [pid 9129] <... futex resumed>) = 0 [pid 9131] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9129] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9128] <... creat resumed>) = 3 [pid 9128] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9128] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9164] <... write resumed>) = 16777216 [ 337.499023][ T9158] BTRFS info (device loop1): rebuilding free space tree [pid 9164] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 9164] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9164] close(4) = 0 [pid 9164] close(5) = 0 [ 337.549546][ T9158] BTRFS info (device loop1): disabling free space tree [ 337.579041][ T9164] loop0: detected capacity change from 0 to 32768 [ 337.579798][ T9158] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9164] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9164] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9166] <... write resumed>) = 16777216 [ 337.632234][ T9158] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 337.645744][ T9164] BTRFS: device /dev/loop0 (7:0) using temp-fsid 5a58721c-626d-4085-bf3d-6a44ec2dc677 [ 337.668009][ T9164] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9164) [pid 9166] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9165] <... write resumed>) = 16777216 [pid 9165] munmap(0x7ff7d3800000, 138412032 [pid 9166] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 9165] <... munmap resumed>) = 0 [pid 9168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 337.693846][ T9158] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 337.723236][ T9164] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 337.734834][ T9164] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 9166] ioctl(5, LOOP_SET_FD, 4 [pid 9165] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9166] <... ioctl resumed>) = 0 [pid 9165] <... openat resumed>) = 5 [pid 9165] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9166] close(4) = 0 [pid 9166] close(5) = 0 [pid 9166] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9166] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9165] close(4) = 0 [pid 9165] close(5) = 0 [pid 9165] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 337.744062][ T9166] loop3: detected capacity change from 0 to 32768 [ 337.759300][ T9165] loop4: detected capacity change from 0 to 32768 [ 337.769513][ T9166] BTRFS: device /dev/loop3 (7:3) using temp-fsid 38c0029c-1418-41ad-b07c-b45433916a85 [ 337.779528][ T9166] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9166) [pid 9165] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9158] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9158] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9158] ioctl(4, LOOP_CLR_FD) = 0 [ 337.803573][ T9165] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9165) [ 337.820096][ T9166] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 337.837798][ T9166] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 337.857191][ T9165] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 337.916314][ T9165] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 9158] close(4) = 0 [pid 9158] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9120] <... futex resumed>) = 0 [pid 9158] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9120] exit_group(0 [pid 9128] <... futex resumed>) = ? [pid 9120] <... exit_group resumed>) = ? [pid 9158] <... futex resumed>) = ? [pid 9128] +++ exited with 0 +++ [pid 9158] +++ exited with 0 +++ [pid 9120] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9120, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=90 /* 0.90 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9208 attached , child_tidptr=0x5555693e0750) = 9208 [pid 9208] set_robust_list(0x5555693e0760, 24) = 0 [pid 9208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9208] setpgid(0, 0) = 0 [pid 9208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 9208] write(3, "1000", 4) = 4 [pid 9208] close(3) = 0 [pid 9208] write(1, "executing program\n", 18) = 18 [pid 9208] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9208] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9208] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9208] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9223]}, 88) = 9223 [pid 9208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9208] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9223 attached [pid 9223] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9223] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9223] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 338.062418][ T9164] BTRFS info (device loop0): rebuilding free space tree [pid 9223] memfd_create("syzkaller", 0) = 3 [pid 9223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 338.137292][ T9164] BTRFS info (device loop0): disabling free space tree [ 338.173559][ T9166] BTRFS info (device loop3): rebuilding free space tree [pid 9168] <... write resumed>) = 16777216 [ 338.208634][ T9165] BTRFS info (device loop4): rebuilding free space tree [ 338.215723][ T9164] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9168] munmap(0x7ff7d3800000, 138412032) = 0 [ 338.258510][ T9166] BTRFS info (device loop3): disabling free space tree [ 338.287976][ T9164] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 338.299711][ T9165] BTRFS info (device loop4): disabling free space tree [pid 9168] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9168] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9168] ioctl(4, LOOP_CLR_FD) = 0 [pid 9168] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9168] close(4) = 0 [ 338.306692][ T9165] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 338.308853][ T9166] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 338.346328][ T9164] BTRFS info (device loop0): last unmount of filesystem 5a58721c-626d-4085-bf3d-6a44ec2dc677 [ 338.381345][ T9165] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 338.381979][ T9166] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9168] close(3 [pid 9164] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9164] ioctl(4, LOOP_CLR_FD) = 0 [ 338.438853][ T9165] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 338.518643][ T9166] BTRFS info (device loop3): last unmount of filesystem 38c0029c-1418-41ad-b07c-b45433916a85 [pid 9164] close(4 [pid 9165] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9165] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9165] ioctl(4, LOOP_CLR_FD) = 0 [pid 9165] close(4) = 0 [pid 9165] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9165] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9130] <... futex resumed>) = 0 [pid 9130] exit_group(0) = ? [pid 9131] <... futex resumed>) = ? [pid 9131] +++ exited with 0 +++ [pid 9165] <... futex resumed>) = ? [pid 9165] +++ exited with 0 +++ [pid 9130] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9130, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=76 /* 0.76 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 9166] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5850] <... restart_syscall resumed>) = 0 [pid 9166] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = 0 [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9235 attached [pid 9223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9166] ioctl(4, LOOP_CLR_FD [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 9235 [pid 9166] <... ioctl resumed>) = 0 [pid 9166] close(4 [pid 9235] set_robust_list(0x5555693e0760, 24) = 0 [pid 9235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9235] setpgid(0, 0 [pid 9168] <... close resumed>) = 0 [pid 9168] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9167] <... futex resumed>) = 0 [pid 9167] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9167] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9235] <... setpgid resumed>) = 0 [pid 9235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9168] creat("./bus", 000) = 3 [pid 9235] <... openat resumed>) = 3 [pid 9168] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9167] <... futex resumed>) = 0 [pid 9167] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9167] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9168] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9235] write(3, "1000", 4) = 4 [pid 9235] close(3) = 0 [pid 9235] write(1, "executing program\n", 18executing program ) = 18 [pid 9235] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9167] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9235] <... futex resumed>) = 0 [pid 9167] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9235] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9167] <... futex resumed>) = 0 [pid 9167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9167] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9235] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9167] <... mprotect resumed>) = 0 [pid 9235] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9167] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9167] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9236 attached [pid 9235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9167] <... clone3 resumed> => {parent_tid=[9236]}, 88) = 9236 [pid 9235] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9235] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9167] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9236] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9167] <... futex resumed>) = 0 [pid 9236] <... rseq resumed>) = 0 [pid 9167] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9235] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9236] set_robust_list(0x7ff7dbc719a0, 24 [pid 9235] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9235] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9236] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 9237 attached [pid 9236] rt_sigprocmask(SIG_SETMASK, [], [pid 9235] <... clone3 resumed> => {parent_tid=[9237]}, 88) = 9237 [pid 9235] rt_sigprocmask(SIG_SETMASK, [], [pid 9237] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9237] <... rseq resumed>) = 0 [pid 9235] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] set_robust_list(0x7ff7dbc929a0, 24 [pid 9235] <... futex resumed>) = 0 [pid 9237] <... set_robust_list resumed>) = 0 [pid 9235] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9237] memfd_create("syzkaller", 0 [pid 9236] memfd_create("syzkaller", 0 [pid 9237] <... memfd_create resumed>) = 3 [pid 9236] <... memfd_create resumed>) = 4 [pid 9237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9237] <... mmap resumed>) = 0x7ff7d3800000 [pid 9236] <... mmap resumed>) = 0x7ff7d3800000 [pid 9164] <... close resumed>) = 0 [pid 9164] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9164] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9121] <... futex resumed>) = 0 [pid 9121] exit_group(0) = ? [pid 9129] <... futex resumed>) = ? [pid 9129] +++ exited with 0 +++ [pid 9164] <... futex resumed>) = ? [pid 9164] +++ exited with 0 +++ [pid 9121] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9121, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=84 /* 0.84 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9238 attached , child_tidptr=0x5555693e0750) = 9238 [pid 9238] set_robust_list(0x5555693e0760, 24) = 0 [pid 9238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9238] setpgid(0, 0) = 0 [pid 9238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 9238] write(3, "1000", 4) = 4 [pid 9238] close(3) = 0 [pid 9238] write(1, "executing program\n", 18) = 18 [pid 9238] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9238] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9238] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9238] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9239]}, 88) = 9239 [pid 9238] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9238] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9238] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9239 attached [pid 9239] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9166] <... close resumed>) = 0 [pid 9239] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9239] memfd_create("syzkaller", 0 [pid 9166] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9132] <... futex resumed>) = 0 [pid 9132] exit_group(0 [pid 9166] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 9133] <... futex resumed>) = ? [pid 9132] <... exit_group resumed>) = ? [pid 9166] +++ exited with 0 +++ [pid 9133] +++ exited with 0 +++ [pid 9239] <... memfd_create resumed>) = 3 [pid 9132] +++ exited with 0 +++ [pid 9239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9132, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=78 /* 0.78 s */} --- [pid 9239] <... mmap resumed>) = 0x7ff7d3800000 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9240 attached [pid 9240] set_robust_list(0x5555693e0760, 24 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 9240 [pid 9240] <... set_robust_list resumed>) = 0 [pid 9240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9240] setpgid(0, 0) = 0 [pid 9240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9240] write(3, "1000", 4) = 4 [pid 9240] close(3) = 0 executing program [pid 9240] write(1, "executing program\n", 18) = 18 [pid 9240] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9223] <... write resumed>) = 16777216 [pid 9240] <... futex resumed>) = 0 [pid 9223] munmap(0x7ff7d3800000, 138412032 [pid 9240] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9240] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9240] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9240] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9240] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9223] <... munmap resumed>) = 0 [pid 9223] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9240] <... clone3 resumed> => {parent_tid=[9241]}, 88) = 9241 [pid 9223] <... openat resumed>) = 4 [pid 9240] rt_sigprocmask(SIG_SETMASK, [], [pid 9223] ioctl(4, LOOP_SET_FD, 3 [pid 9240] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 9241 attached [pid 9240] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9241] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9240] <... futex resumed>) = 0 [pid 9241] <... rseq resumed>) = 0 [pid 9240] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9241] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9241] memfd_create("syzkaller", 0) = 3 [pid 9241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9223] <... ioctl resumed>) = 0 [pid 9223] close(3) = 0 [pid 9223] close(4) = 0 [pid 9223] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 339.212234][ T9223] loop1: detected capacity change from 0 to 32768 [pid 9223] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 339.435355][ T9223] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9236] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9237] <... write resumed>) = 16777216 [pid 9237] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9237] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 339.479489][ T9223] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9237] ioctl(4, LOOP_SET_FD, 3 [pid 9239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9237] <... ioctl resumed>) = 0 [pid 9237] close(3) = 0 [ 339.547949][ T9237] loop4: detected capacity change from 0 to 32768 [pid 9237] close(4) = 0 [pid 9237] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9237] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9223] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 339.706918][ T9223] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9223] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9223] ioctl(3, LOOP_CLR_FD) = 0 [pid 9223] close(3 [ 339.810317][ T9237] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 339.830305][ T9237] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9236] <... write resumed>) = 16777216 [pid 9168] <... write resumed>) = 16776704 [pid 9236] munmap(0x7ff7d3800000, 138412032 [pid 9168] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9168] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9236] <... munmap resumed>) = 0 [pid 9239] <... write resumed>) = 16777216 [pid 9236] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9236] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9236] ioctl(5, LOOP_CLR_FD) = 0 [pid 9239] munmap(0x7ff7d3800000, 138412032 [pid 9236] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9236] close(5) = 0 [pid 9236] close(4 [pid 9239] <... munmap resumed>) = 0 [pid 9239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9239] ioctl(4, LOOP_SET_FD, 3 [pid 9237] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9239] <... ioctl resumed>) = 0 [pid 9223] <... close resumed>) = 0 [pid 9237] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 9237] ioctl(3, LOOP_CLR_FD [pid 9239] close(3 [pid 9237] <... ioctl resumed>) = 0 [pid 9223] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9239] <... close resumed>) = 0 [pid 9223] <... futex resumed>) = 1 [pid 9208] <... futex resumed>) = 0 [pid 9239] close(4 [pid 9223] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9239] <... close resumed>) = 0 [pid 9237] close(3 [pid 9239] mkdir("./file1", 0777 [pid 9208] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9239] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9223] <... futex resumed>) = 0 [pid 9208] <... futex resumed>) = 1 [pid 9239] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9223] creat("./bus", 000 [ 340.072854][ T9239] loop0: detected capacity change from 0 to 32768 [ 340.080085][ T9237] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9208] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9208] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9208] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9208] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9259]}, 88) = 9259 [pid 9208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9208] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9259 attached ) = 0 [pid 9259] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9208] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9259] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9236] <... close resumed>) = 0 [pid 9259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9259] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9259] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9208] <... futex resumed>) = 0 [pid 9259] memfd_create("syzkaller", 0 [pid 9208] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9259] <... memfd_create resumed>) = 4 [pid 9208] <... futex resumed>) = 0 [pid 9259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9208] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9259] <... mmap resumed>) = 0x7ff7d3800000 [pid 9236] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9167] <... futex resumed>) = 0 [pid 9236] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9167] exit_group(0 [pid 9236] <... futex resumed>) = ? [pid 9168] <... futex resumed>) = ? [pid 9167] <... exit_group resumed>) = ? [pid 9168] +++ exited with 0 +++ [pid 9241] <... write resumed>) = 16777216 [pid 9241] munmap(0x7ff7d3800000, 138412032 [pid 9236] +++ exited with 0 +++ [pid 9167] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9167, si_uid=0, si_status=0, si_utime=30 /* 0.30 s */, si_stime=95 /* 0.95 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 9241] <... munmap resumed>) = 0 [pid 9237] <... close resumed>) = 0 [pid 5845] close(3) = 0 [pid 9237] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9237] <... futex resumed>) = 1 [pid 9235] <... futex resumed>) = 0 [pid 9237] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9235] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9235] <... futex resumed>) = 0 [pid 9237] creat("./bus", 000 [pid 9235] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9241] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 9241] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9264 attached ) = 0 [pid 9241] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 9264 [pid 9264] set_robust_list(0x5555693e0760, 24 [pid 9241] <... close resumed>) = 0 [pid 9264] <... set_robust_list resumed>) = 0 [pid 9264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9264] setpgid(0, 0) = 0 [pid 9264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 340.330013][ T9239] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 340.359562][ T9241] loop3: detected capacity change from 0 to 32768 [pid 9241] close(4) = 0 [pid 9264] <... openat resumed>) = 3 [pid 9241] mkdir("./file1", 0777 [pid 9264] write(3, "1000", 4 [pid 9241] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9241] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9235] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9235] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0executing program [pid 9264] <... write resumed>) = 4 [pid 9235] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9264] close(3) = 0 [pid 9264] write(1, "executing program\n", 18) = 18 [pid 9264] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9264] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9264] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9264] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9264] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9264] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9235] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9264] <... clone3 resumed> => {parent_tid=[9266]}, 88) = 9266 [pid 9264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9264] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9235] <... mprotect resumed>) = 0 [pid 9264] <... futex resumed>) = 0 [pid 9264] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9266 attached [pid 9235] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9266] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9266] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9266] memfd_create("syzkaller", 0 [ 340.388538][ T9239] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9235] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9269 attached [pid 9266] <... memfd_create resumed>) = 3 [pid 9269] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9237] <... creat resumed>) = 3 [pid 9223] <... creat resumed>) = 3 [pid 9237] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9235] <... clone3 resumed> => {parent_tid=[9269]}, 88) = 9269 [pid 9223] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9223] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9269] <... rseq resumed>) = 0 [pid 9269] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9269] rt_sigprocmask(SIG_SETMASK, [], [pid 9266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9269] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9266] <... mmap resumed>) = 0x7ff7d3800000 [pid 9237] <... futex resumed>) = 0 [pid 9235] rt_sigprocmask(SIG_SETMASK, [], [pid 9237] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9235] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9269] <... futex resumed>) = 0 [pid 9235] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9269] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9235] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9235] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] <... futex resumed>) = 0 [pid 9235] <... futex resumed>) = 1 [pid 9237] memfd_create("syzkaller", 0 [pid 9235] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9237] <... memfd_create resumed>) = 4 [pid 9237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 340.531299][ T9241] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 340.543808][ T9241] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9239] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 340.613636][ T9239] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9239] ioctl(3, LOOP_CLR_FD) = 0 [pid 9239] close(3 [pid 9241] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9241] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 9241] ioctl(3, LOOP_CLR_FD) = 0 [ 340.658024][ T9241] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9241] close(3 [pid 9259] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9239] <... close resumed>) = 0 [pid 9239] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9239] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9238] <... futex resumed>) = 0 [pid 9238] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9238] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9239] <... futex resumed>) = 0 [pid 9239] creat("./bus", 000 [pid 9241] <... close resumed>) = 0 [pid 9241] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9240] <... futex resumed>) = 0 [pid 9241] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9240] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9240] <... futex resumed>) = 0 [pid 9241] creat("./bus", 000 [pid 9240] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9238] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9238] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9238] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9238] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9274 attached [pid 9274] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9238] <... clone3 resumed> => {parent_tid=[9274]}, 88) = 9274 [pid 9274] <... rseq resumed>) = 0 [pid 9238] rt_sigprocmask(SIG_SETMASK, [], [pid 9274] set_robust_list(0x7ff7dbc719a0, 24 [pid 9238] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9274] <... set_robust_list resumed>) = 0 [pid 9266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9238] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9238] <... futex resumed>) = 0 [pid 9274] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9238] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9274] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9274] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9238] <... futex resumed>) = 0 [pid 9274] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9238] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9238] <... futex resumed>) = 0 [pid 9238] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9274] memfd_create("syzkaller", 0) = 4 [pid 9274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9240] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9240] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9237] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9240] <... futex resumed>) = 0 [pid 9240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9240] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9240] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9240] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9275 attached [pid 9275] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9240] <... clone3 resumed> => {parent_tid=[9275]}, 88) = 9275 [pid 9275] <... rseq resumed>) = 0 [pid 9240] rt_sigprocmask(SIG_SETMASK, [], [pid 9275] set_robust_list(0x7ff7dbc719a0, 24 [pid 9240] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9240] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9275] <... set_robust_list resumed>) = 0 [pid 9275] rt_sigprocmask(SIG_SETMASK, [], [pid 9240] <... futex resumed>) = 0 [pid 9275] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9240] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9275] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9275] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9240] <... futex resumed>) = 0 [pid 9275] memfd_create("syzkaller", 0 [pid 9240] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9275] <... memfd_create resumed>) = 4 [pid 9240] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9259] <... write resumed>) = 16777216 [pid 9259] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9259] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 9259] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9259] close(4) = 0 [pid 9259] close(5) = 0 [pid 9259] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 341.409045][ T9259] loop1: detected capacity change from 0 to 32768 [ 341.450212][ T9259] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9259) [pid 9259] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9266] <... write resumed>) = 16777216 [ 341.499831][ T9259] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9274] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9266] munmap(0x7ff7d3800000, 138412032 [pid 9269] <... write resumed>) = 16776704 [pid 9266] <... munmap resumed>) = 0 [pid 9237] <... write resumed>) = 16777216 [pid 9269] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9266] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9269] <... futex resumed>) = 0 [pid 9266] <... openat resumed>) = 4 [pid 9269] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 341.551792][ T9259] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 9266] ioctl(4, LOOP_CLR_FD [pid 9237] munmap(0x7ff7d3800000, 138412032 [pid 9266] <... ioctl resumed>) = 0 [pid 9266] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9237] <... munmap resumed>) = 0 [pid 9266] close(4) = 0 [pid 9266] close(3 [pid 9237] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 9237] ioctl(5, LOOP_SET_FD, 4 [pid 9275] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9237] <... ioctl resumed>) = 0 [ 341.666804][ T9237] loop4: detected capacity change from 0 to 32768 [pid 9237] close(4) = 0 [pid 9237] close(5) = 0 [pid 9237] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 341.750763][ T9237] BTRFS: device /dev/loop4 (7:4) using temp-fsid bcc6ab49-0dc7-4cf8-ab8c-a712d950f00f [pid 9237] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9266] <... close resumed>) = 0 [pid 9266] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9264] <... futex resumed>) = 0 [pid 9266] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9264] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9266] <... futex resumed>) = 0 [pid 9264] <... futex resumed>) = 1 [pid 9266] creat("./bus", 000 [ 341.789750][ T9237] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9237) [ 341.832316][ T9237] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 341.854359][ T9237] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 9264] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9264] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9264] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9264] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9264] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9296]}, 88) = 9296 [pid 9264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9264] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9264] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9296 attached [pid 9296] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9296] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 341.877324][ T9259] BTRFS info (device loop1): rebuilding free space tree [pid 9296] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9274] <... write resumed>) = 16777216 [pid 9296] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] munmap(0x7ff7d3800000, 138412032 [pid 9296] <... futex resumed>) = 1 [pid 9264] <... futex resumed>) = 0 [pid 9264] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9264] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9296] memfd_create("syzkaller", 0) = 4 [pid 9296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9274] <... munmap resumed>) = 0 [ 341.933832][ T9259] BTRFS info (device loop1): disabling free space tree [pid 9274] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9266] <... creat resumed>) = 3 [pid 9239] <... creat resumed>) = 3 [pid 9274] <... openat resumed>) = 5 [pid 9266] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9239] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] ioctl(5, LOOP_SET_FD, 4 [pid 9266] <... futex resumed>) = 0 [pid 9239] <... futex resumed>) = 0 [pid 9266] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9239] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9241] <... creat resumed>) = 3 [pid 9241] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9241] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9274] <... ioctl resumed>) = 0 [pid 9274] close(4) = 0 [pid 9274] close(5) = 0 [pid 9274] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 341.978705][ T9259] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 342.003666][ T9274] loop0: detected capacity change from 0 to 32768 [ 342.052283][ T9274] BTRFS: device /dev/loop0 (7:0) using temp-fsid f08fb051-b9dd-48d6-a701-b66244fc06be [ 342.063708][ T9237] BTRFS info (device loop4): rebuilding free space tree [ 342.071978][ T9259] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9274] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9275] <... write resumed>) = 16777216 [ 342.107761][ T9274] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9274) [pid 9275] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9275] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 342.157863][ T9237] BTRFS info (device loop4): disabling free space tree [ 342.165317][ T9237] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 342.170189][ T9275] loop3: detected capacity change from 0 to 32768 [ 342.189997][ T9259] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9275] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9275] close(4) = 0 [pid 9275] close(5) = 0 [pid 9275] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 342.201712][ T9274] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 342.210758][ T9275] BTRFS: device /dev/loop3 (7:3) using temp-fsid 3dbfb05b-9f30-4524-9570-81817ee3b78c [ 342.224484][ T9237] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 342.241861][ T9275] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9275) [ 342.251594][ T9274] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 9275] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9259] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9259] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9259] ioctl(4, LOOP_CLR_FD) = 0 [ 342.309019][ T9237] BTRFS info (device loop4): last unmount of filesystem bcc6ab49-0dc7-4cf8-ab8c-a712d950f00f [ 342.323446][ T9275] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 342.361512][ T9275] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 9259] close(4 [ 342.510729][ T9274] BTRFS info (device loop0): rebuilding free space tree [ 342.571614][ T9274] BTRFS info (device loop0): disabling free space tree [ 342.598359][ T9274] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 342.608507][ T9275] BTRFS info (device loop3): rebuilding free space tree [pid 9296] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9237] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9237] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9237] ioctl(4, LOOP_CLR_FD) = 0 [ 342.626236][ T9275] BTRFS info (device loop3): disabling free space tree [ 342.633263][ T9275] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 342.643167][ T9275] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 342.671329][ T9274] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 342.755672][ T9275] BTRFS info (device loop3): last unmount of filesystem 3dbfb05b-9f30-4524-9570-81817ee3b78c [pid 9237] close(4 [pid 9259] <... close resumed>) = 0 [pid 9259] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9208] <... futex resumed>) = 0 [pid 9259] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9208] exit_group(0) = ? [pid 9259] <... futex resumed>) = ? [pid 9259] +++ exited with 0 +++ [pid 9223] <... futex resumed>) = ? [pid 9223] +++ exited with 0 +++ [pid 9208] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9208, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=95 /* 0.95 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9341 ./strace-static-x86_64: Process 9341 attached [pid 9341] set_robust_list(0x5555693e0760, 24) = 0 [pid 9341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9341] setpgid(0, 0) = 0 [pid 9341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9341] write(3, "1000", 4) = 4 executing program [pid 9341] close(3) = 0 [pid 9341] write(1, "executing program\n", 18) = 18 [pid 9341] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9341] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [ 342.798119][ T9274] BTRFS info (device loop0): last unmount of filesystem f08fb051-b9dd-48d6-a701-b66244fc06be [pid 9341] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9341] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9275] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9341] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9341] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9342 attached [pid 9342] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9341] <... clone3 resumed> => {parent_tid=[9342]}, 88) = 9342 [pid 9342] <... rseq resumed>) = 0 [pid 9341] rt_sigprocmask(SIG_SETMASK, [], [pid 9342] set_robust_list(0x7ff7dbc929a0, 24 [pid 9341] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9342] <... set_robust_list resumed>) = 0 [pid 9341] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9342] rt_sigprocmask(SIG_SETMASK, [], [pid 9341] <... futex resumed>) = 0 [pid 9342] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9341] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9342] memfd_create("syzkaller", 0) = 3 [pid 9342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9275] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 9275] ioctl(4, LOOP_CLR_FD) = 0 [pid 9274] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9275] close(4 [pid 9274] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9274] ioctl(4, LOOP_CLR_FD [pid 9237] <... close resumed>) = 0 [pid 9274] <... ioctl resumed>) = 0 [pid 9237] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9235] <... futex resumed>) = 0 [pid 9235] exit_group(0 [pid 9269] <... futex resumed>) = ? [pid 9235] <... exit_group resumed>) = ? [pid 9269] +++ exited with 0 +++ [pid 9274] close(4 [pid 9237] +++ exited with 0 +++ [pid 9235] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9235, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=123 /* 1.23 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9343 attached [pid 9343] set_robust_list(0x5555693e0760, 24) = 0 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 9343 [pid 9343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9343] setpgid(0, 0) = 0 [pid 9343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9343] write(3, "1000", 4) = 4 [pid 9343] close(3) = 0 executing program [pid 9343] write(1, "executing program\n", 18) = 18 [pid 9343] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9343] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9343] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9343] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9343] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9343] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9344 attached => {parent_tid=[9344]}, 88) = 9344 [pid 9343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9344] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9343] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9344] <... rseq resumed>) = 0 [pid 9343] <... futex resumed>) = 0 [pid 9344] set_robust_list(0x7ff7dbc929a0, 24 [pid 9343] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9344] <... set_robust_list resumed>) = 0 [pid 9344] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9344] memfd_create("syzkaller", 0) = 3 [pid 9344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9296] <... write resumed>) = 16777216 [pid 9296] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9296] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9296] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9296] ioctl(5, LOOP_CLR_FD) = 0 [pid 9275] <... close resumed>) = 0 [pid 9274] <... close resumed>) = 0 [pid 9296] ioctl(5, LOOP_SET_FD, 4 [pid 9275] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9275] <... futex resumed>) = 1 [pid 9240] <... futex resumed>) = 0 [pid 9296] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9296] close(5 [pid 9275] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9274] <... futex resumed>) = 1 [pid 9240] exit_group(0 [pid 9238] <... futex resumed>) = 0 [pid 9296] <... close resumed>) = 0 [pid 9275] <... futex resumed>) = ? [pid 9240] <... exit_group resumed>) = ? [pid 9296] close(4 [pid 9238] exit_group(0 [pid 9275] +++ exited with 0 +++ [pid 9241] <... futex resumed>) = ? [pid 9239] <... futex resumed>) = ? [pid 9238] <... exit_group resumed>) = ? [pid 9239] +++ exited with 0 +++ [pid 9241] +++ exited with 0 +++ [pid 9240] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9240, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=107 /* 1.07 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9274] +++ exited with 0 +++ [pid 9238] +++ exited with 0 +++ [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9238, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=78 /* 0.78 s */} --- [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 9345 attached [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 9345 [pid 9345] set_robust_list(0x5555693e0760, 24) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3 [pid 9345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] <... close resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9345] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 9346 attached [pid 9345] setpgid(0, 0) = 0 [pid 9346] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 9346 [pid 9346] <... set_robust_list resumed>) = 0 [pid 9346] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9346] <... prctl resumed>) = 0 [pid 9346] setpgid(0, 0) = 0 [pid 9346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9346] write(3, "1000", 4) = 4 [pid 9345] <... openat resumed>) = 3 [pid 9346] close(3) = 0 executing program [pid 9346] write(1, "executing program\n", 18) = 18 [pid 9346] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9345] write(3, "1000", 4 [pid 9346] <... futex resumed>) = 0 [pid 9346] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9346] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9346] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9346] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9346] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9347]}, 88) = 9347 ./strace-static-x86_64: Process 9347 attached [pid 9346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9346] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9346] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9347] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9347] set_robust_list(0x7ff7dbc929a0, 24 [pid 9345] <... write resumed>) = 4 [pid 9347] <... set_robust_list resumed>) = 0 [pid 9347] rt_sigprocmask(SIG_SETMASK, [], [pid 9345] close(3 [pid 9347] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9347] memfd_create("syzkaller", 0) = 3 [pid 9342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9345] <... close resumed>) = 0 [pid 9347] <... mmap resumed>) = 0x7ff7d3800000 executing program [pid 9345] write(1, "executing program\n", 18) = 18 [pid 9345] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9345] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9345] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9345] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9345] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9348 attached => {parent_tid=[9348]}, 88) = 9348 [pid 9348] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9345] rt_sigprocmask(SIG_SETMASK, [], [pid 9348] <... rseq resumed>) = 0 [pid 9348] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9348] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9348] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9345] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9348] memfd_create("syzkaller", 0 [pid 9345] <... futex resumed>) = 0 [pid 9348] <... memfd_create resumed>) = 3 [pid 9345] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9296] <... close resumed>) = 0 [pid 9296] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9264] <... futex resumed>) = 0 [pid 9296] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9264] exit_group(0 [pid 9266] <... futex resumed>) = ? [pid 9296] <... futex resumed>) = ? [pid 9264] <... exit_group resumed>) = ? [pid 9296] +++ exited with 0 +++ [pid 9266] +++ exited with 0 +++ [pid 9264] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9264, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=70 /* 0.70 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9349 ./strace-static-x86_64: Process 9349 attached [pid 9349] set_robust_list(0x5555693e0760, 24) = 0 [pid 9349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9349] setpgid(0, 0) = 0 [pid 9349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9349] write(3, "1000", 4) = 4 [pid 9349] close(3 [pid 9344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9349] <... close resumed>) = 0 executing program [pid 9349] write(1, "executing program\n", 18) = 18 [pid 9349] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9349] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9349] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9349] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9349] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9350 attached => {parent_tid=[9350]}, 88) = 9350 [pid 9350] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9350] set_robust_list(0x7ff7dbc929a0, 24 [pid 9349] rt_sigprocmask(SIG_SETMASK, [], [pid 9350] <... set_robust_list resumed>) = 0 [pid 9349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9350] rt_sigprocmask(SIG_SETMASK, [], [pid 9349] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9350] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9349] <... futex resumed>) = 0 [pid 9349] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9350] memfd_create("syzkaller", 0) = 3 [pid 9350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9342] <... write resumed>) = 16777216 [pid 9342] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9342] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9348] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9342] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9342] close(3) = 0 [pid 9342] close(4) = 0 [ 343.887991][ T9342] loop1: detected capacity change from 0 to 32768 [pid 9344] <... write resumed>) = 16777216 [pid 9342] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9342] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9344] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9344] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9344] ioctl(4, LOOP_SET_FD, 3 [pid 9350] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9344] <... ioctl resumed>) = 0 [pid 9344] close(3) = 0 [pid 9344] close(4) = 0 [pid 9344] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 343.989398][ T9344] loop4: detected capacity change from 0 to 32768 [pid 9344] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9347] <... write resumed>) = 16777216 [ 344.053432][ T9342] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 344.082172][ T9342] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9347] munmap(0x7ff7d3800000, 138412032) = 0 [ 344.100698][ T9344] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 344.111177][ T9344] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9347] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9347] close(3) = 0 [pid 9347] close(4) = 0 [pid 9347] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 344.148905][ T9347] loop0: detected capacity change from 0 to 32768 [pid 9347] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9342] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 344.285955][ T9342] bcachefs: bch2_fs_get_tree() error: EINVAL [ 344.318019][ T9347] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 344.318438][ T9344] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9348] <... write resumed>) = 16777216 [pid 9342] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9342] ioctl(3, LOOP_CLR_FD) = 0 [pid 9344] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9342] close(3 [pid 9344] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9348] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9344] <... openat resumed>) = 3 [ 344.327153][ T9347] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9350] <... write resumed>) = 16777216 [pid 9348] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9344] ioctl(3, LOOP_CLR_FD [pid 9350] munmap(0x7ff7d3800000, 138412032 [pid 9348] <... openat resumed>) = 4 [pid 9344] <... ioctl resumed>) = 0 [pid 9348] ioctl(4, LOOP_SET_FD, 3 [pid 9344] close(3 [pid 9350] <... munmap resumed>) = 0 [pid 9348] <... ioctl resumed>) = 0 [pid 9348] close(3 [pid 9350] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9348] <... close resumed>) = 0 [ 344.421505][ T9348] loop3: detected capacity change from 0 to 32768 [pid 9350] <... openat resumed>) = 4 [pid 9348] close(4) = 0 [pid 9350] ioctl(4, LOOP_SET_FD, 3 [pid 9348] mkdir("./file1", 0777 [pid 9350] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9350] ioctl(4, LOOP_CLR_FD [pid 9348] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9350] <... ioctl resumed>) = 0 [pid 9348] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9350] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9350] close(4) = 0 [pid 9350] close(3 [pid 9342] <... close resumed>) = 0 [pid 9347] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9342] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9342] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9341] <... futex resumed>) = 0 [pid 9341] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9342] <... futex resumed>) = 0 [pid 9341] <... futex resumed>) = 1 [pid 9342] creat("./bus", 000 [pid 9347] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9341] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9347] <... openat resumed>) = 3 [pid 9342] <... creat resumed>) = 3 [pid 9347] ioctl(3, LOOP_CLR_FD) = 0 [pid 9347] close(3 [pid 9342] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9341] <... futex resumed>) = 0 [pid 9342] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9341] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9342] <... futex resumed>) = 0 [pid 9341] <... futex resumed>) = 1 [ 344.578764][ T9347] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9342] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9341] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 344.643998][ T9348] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9341] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9341] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9341] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9341] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9379]}, 88) = 9379 [pid 9341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9341] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9341] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9379 attached [pid 9379] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9379] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9379] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9379] memfd_create("syzkaller", 0) = 4 [ 344.697811][ T9348] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9344] <... close resumed>) = 0 [pid 9344] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9344] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9343] <... futex resumed>) = 0 [pid 9343] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9344] <... futex resumed>) = 0 [pid 9343] <... futex resumed>) = 1 [pid 9344] creat("./bus", 000 [pid 9343] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9343] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9343] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9343] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9343] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9380 attached => {parent_tid=[9380]}, 88) = 9380 [pid 9343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9343] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9343] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9380] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9380] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9380] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9380] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9380] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9343] <... futex resumed>) = 0 [pid 9343] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9380] <... futex resumed>) = 0 [pid 9380] memfd_create("syzkaller", 0 [pid 9343] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9380] <... memfd_create resumed>) = 4 [pid 9380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9350] <... close resumed>) = 0 [pid 9350] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9350] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9349] <... futex resumed>) = 0 [pid 9347] <... close resumed>) = 0 [pid 9349] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9347] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9346] <... futex resumed>) = 0 [pid 9346] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9346] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9347] creat("./bus", 000 [pid 9349] <... futex resumed>) = 1 [pid 9349] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9350] <... futex resumed>) = 0 [pid 9350] creat("./bus", 000 [pid 9348] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9348] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 9348] ioctl(3, LOOP_CLR_FD) = 0 [ 344.906104][ T9348] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9348] close(3 [pid 9349] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9349] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9346] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9349] <... futex resumed>) = 0 [pid 9346] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9346] <... futex resumed>) = 0 [pid 9349] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9349] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9346] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9349] <... mprotect resumed>) = 0 [pid 9346] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9349] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9346] <... mprotect resumed>) = 0 [pid 9349] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9346] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 9346] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9346] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 9349] <... clone3 resumed> => {parent_tid=[9381]}, 88) = 9381 [pid 9349] rt_sigprocmask(SIG_SETMASK, [], [pid 9346] <... clone3 resumed> => {parent_tid=[9382]}, 88) = 9382 ./strace-static-x86_64: Process 9381 attached [pid 9349] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9346] rt_sigprocmask(SIG_SETMASK, [], [pid 9381] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9349] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9346] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9381] <... rseq resumed>) = 0 [pid 9349] <... futex resumed>) = 0 [pid 9346] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9381] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9349] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9346] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9382 attached [pid 9381] rt_sigprocmask(SIG_SETMASK, [], [pid 9346] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9381] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9382] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9381] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9382] <... rseq resumed>) = 0 [pid 9381] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9382] set_robust_list(0x7ff7dbc719a0, 24 [pid 9381] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9382] <... set_robust_list resumed>) = 0 [pid 9381] <... futex resumed>) = 1 [pid 9349] <... futex resumed>) = 0 [pid 9382] rt_sigprocmask(SIG_SETMASK, [], [pid 9381] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9349] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9382] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9381] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9349] <... futex resumed>) = 0 [pid 9382] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9381] memfd_create("syzkaller", 0 [pid 9349] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9382] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9381] <... memfd_create resumed>) = 4 [pid 9382] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9346] <... futex resumed>) = 0 [pid 9382] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9346] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9346] <... futex resumed>) = 0 [pid 9382] memfd_create("syzkaller", 0 [pid 9381] <... mmap resumed>) = 0x7ff7d3800000 [pid 9346] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9382] <... memfd_create resumed>) = 4 [pid 9382] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9379] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9348] <... close resumed>) = 0 [pid 9348] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9348] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9345] <... futex resumed>) = 0 [pid 9345] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9345] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9348] creat("./bus", 000 [pid 9380] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9345] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9345] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9345] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9345] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9383 attached => {parent_tid=[9383]}, 88) = 9383 [pid 9345] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9345] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9345] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9383] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9383] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9383] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9383] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9383] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9345] <... futex resumed>) = 0 [pid 9383] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 9345] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9383] memfd_create("syzkaller", 0) = 4 [pid 9345] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9382] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9381] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9342] <... write resumed>) = 16776704 [pid 9342] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9342] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9379] <... write resumed>) = 16777216 [pid 9379] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9379] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 9379] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9379] close(4) = 0 [pid 9379] close(5) = 0 [pid 9379] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9379] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9383] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9380] <... write resumed>) = 16777216 [ 345.746558][ T9379] loop1: detected capacity change from 0 to 32768 [ 345.779434][ T9379] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9379) [pid 9380] munmap(0x7ff7d3800000, 138412032) = 0 [ 345.832395][ T9379] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9380] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 9382] <... write resumed>) = 16777216 [pid 9380] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9382] munmap(0x7ff7d3800000, 138412032 [pid 9380] close(4) = 0 [pid 9380] close(5 [pid 9382] <... munmap resumed>) = 0 [pid 9380] <... close resumed>) = 0 [pid 9380] mkdir("./bus", 0777 [pid 9382] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9380] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9382] <... openat resumed>) = 5 [pid 9380] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 345.878769][ T9379] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 345.898336][ T9380] loop4: detected capacity change from 0 to 32768 [pid 9382] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9382] close(4 [pid 9381] <... write resumed>) = 16777216 [pid 9382] <... close resumed>) = 0 [ 345.946511][ T9380] BTRFS: device /dev/loop4 (7:4) using temp-fsid 0ff932b5-a455-43da-ae9b-27197751e560 [ 345.958003][ T9382] loop0: detected capacity change from 0 to 32768 [pid 9382] close(5) = 0 [pid 9382] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9382] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 345.992587][ T9380] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9380) [ 346.034860][ T9382] BTRFS: device /dev/loop0 (7:0) using temp-fsid 504635ec-287c-4223-85c0-d1af327fbeb1 [ 346.052206][ T9380] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9381] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9381] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9381] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9381] ioctl(5, LOOP_CLR_FD) = 0 [ 346.099711][ T9382] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9382) [ 346.116645][ T9379] BTRFS info (device loop1): rebuilding free space tree [ 346.129166][ T9380] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 9381] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9381] close(5) = 0 [pid 9381] close(4 [pid 9350] <... creat resumed>) = 3 [pid 9348] <... creat resumed>) = 3 [pid 9347] <... creat resumed>) = 3 [pid 9348] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9347] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9348] <... futex resumed>) = 0 [pid 9347] <... futex resumed>) = 0 [pid 9348] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 346.151534][ T9379] BTRFS info (device loop1): disabling free space tree [ 346.184483][ T9382] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9347] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9344] <... creat resumed>) = 3 [pid 9344] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9344] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9350] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 346.218178][ T9379] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 346.242801][ T9382] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 346.260099][ T9379] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9350] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9383] <... write resumed>) = 16777216 [pid 9383] munmap(0x7ff7d3800000, 138412032) = 0 [ 346.299572][ T9379] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9383] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 9383] ioctl(5, LOOP_SET_FD, 4 [pid 9381] <... close resumed>) = 0 [pid 9381] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9349] <... futex resumed>) = 0 [pid 9381] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9349] exit_group(0 [pid 9381] <... futex resumed>) = ? [pid 9350] <... futex resumed>) = ? [pid 9349] <... exit_group resumed>) = ? [pid 9381] +++ exited with 0 +++ [pid 9350] +++ exited with 0 +++ [pid 9383] <... ioctl resumed>) = 0 [pid 9383] close(4) = 0 [pid 9383] close(5) = 0 [pid 9349] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9349, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=64 /* 0.64 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 9383] mkdir("./bus", 0777 [pid 5845] <... restart_syscall resumed>) = 0 [pid 9383] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9383] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9418 ./strace-static-x86_64: Process 9418 attached [pid 9418] set_robust_list(0x5555693e0760, 24) = 0 [pid 9418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9418] setpgid(0, 0) = 0 [pid 9418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 9418] write(3, "1000", 4) = 4 [pid 9418] close(3) = 0 [pid 9418] write(1, "executing program\n", 18) = 18 [pid 9418] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9418] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9418] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9418] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9418] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 346.358972][ T9383] loop3: detected capacity change from 0 to 32768 [ 346.383553][ T9383] BTRFS: device /dev/loop3 (7:3) using temp-fsid 08dbc703-5247-4563-ab2d-eee641da789f [pid 9418] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9427 attached [pid 9427] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9418] <... clone3 resumed> => {parent_tid=[9427]}, 88) = 9427 [pid 9418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9418] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9418] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9427] <... rseq resumed>) = 0 [pid 9427] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9427] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9427] memfd_create("syzkaller", 0) = 3 [pid 9427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 346.442903][ T9383] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9383) [pid 9379] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9379] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9379] ioctl(4, LOOP_CLR_FD) = 0 [ 346.545675][ T9383] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 346.603841][ T9382] BTRFS info (device loop0): rebuilding free space tree [ 346.611034][ T9383] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 346.633400][ T9380] BTRFS info (device loop4): rebuilding free space tree [ 346.684764][ T9382] BTRFS info (device loop0): disabling free space tree [ 346.730024][ T9380] BTRFS info (device loop4): disabling free space tree [ 346.741855][ T9380] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 346.752735][ T9382] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9379] close(4 [ 346.789154][ T9380] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 346.799758][ T9382] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 346.848612][ T9380] BTRFS info (device loop4): last unmount of filesystem 0ff932b5-a455-43da-ae9b-27197751e560 [ 346.863759][ T9383] BTRFS info (device loop3): rebuilding free space tree [ 346.884396][ T9382] BTRFS info (device loop0): last unmount of filesystem 504635ec-287c-4223-85c0-d1af327fbeb1 [pid 9427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9380] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9379] <... close resumed>) = 0 [ 346.934297][ T9383] BTRFS info (device loop3): disabling free space tree [ 346.948476][ T9383] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 346.958708][ T9383] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9382] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9380] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9379] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9382] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9380] <... openat resumed>) = 4 [pid 9379] <... futex resumed>) = 1 [pid 9341] <... futex resumed>) = 0 [pid 9382] <... openat resumed>) = 4 [pid 9380] ioctl(4, LOOP_CLR_FD [pid 9341] exit_group(0 [pid 9380] <... ioctl resumed>) = 0 [pid 9341] <... exit_group resumed>) = ? [pid 9382] ioctl(4, LOOP_CLR_FD [pid 9380] close(4 [pid 9342] <... futex resumed>) = ? [pid 9382] <... ioctl resumed>) = 0 [pid 9382] close(4 [pid 9342] +++ exited with 0 +++ [ 346.993640][ T9383] BTRFS info (device loop3): last unmount of filesystem 08dbc703-5247-4563-ab2d-eee641da789f [pid 9379] +++ exited with 0 +++ [pid 9341] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9341, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=122 /* 1.22 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9427] <... write resumed>) = 16777216 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 9427] munmap(0x7ff7d3800000, 138412032 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9450 attached , child_tidptr=0x5555693e0750) = 9450 [pid 9450] set_robust_list(0x5555693e0760, 24) = 0 [pid 9450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9383] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9450] <... prctl resumed>) = 0 [pid 9450] setpgid(0, 0) = 0 [pid 9383] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9427] <... munmap resumed>) = 0 [pid 9383] <... openat resumed>) = 4 [pid 9450] <... openat resumed>) = 3 [pid 9383] ioctl(4, LOOP_CLR_FD [pid 9450] write(3, "1000", 4 [pid 9427] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9450] <... write resumed>) = 4 [pid 9383] <... ioctl resumed>) = 0 [pid 9450] close(3 [pid 9427] <... openat resumed>) = 4 [pid 9383] close(4 [pid 9450] <... close resumed>) = 0 [pid 9427] ioctl(4, LOOP_SET_FD, 3 [pid 9450] write(1, "executing program\n", 18executing program [pid 9427] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9450] <... write resumed>) = 18 [pid 9427] ioctl(4, LOOP_CLR_FD) = 0 [pid 9450] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9427] ioctl(4, LOOP_SET_FD, 3 [pid 9450] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9427] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9450] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9427] close(4 [pid 9450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9427] <... close resumed>) = 0 [pid 9450] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9427] close(3 [pid 9450] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9450] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9450] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9451 attached => {parent_tid=[9451]}, 88) = 9451 [pid 9450] rt_sigprocmask(SIG_SETMASK, [], [pid 9451] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9451] <... rseq resumed>) = 0 [pid 9450] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9451] set_robust_list(0x7ff7dbc929a0, 24 [pid 9450] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9451] <... set_robust_list resumed>) = 0 [pid 9451] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9451] memfd_create("syzkaller", 0) = 3 [pid 9451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9382] <... close resumed>) = 0 [pid 9382] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9346] <... futex resumed>) = 0 [pid 9382] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9346] exit_group(0 [pid 9347] <... futex resumed>) = ? [pid 9346] <... exit_group resumed>) = ? [pid 9382] <... futex resumed>) = ? [pid 9347] +++ exited with 0 +++ [pid 9382] +++ exited with 0 +++ [pid 9346] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9346, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=90 /* 0.90 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9380] <... close resumed>) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9452 attached , child_tidptr=0x5555693e0750) = 9452 [pid 9452] set_robust_list(0x5555693e0760, 24) = 0 [pid 9380] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9380] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9343] <... futex resumed>) = 0 [pid 9452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9343] exit_group(0 [pid 9452] <... prctl resumed>) = 0 [pid 9380] <... futex resumed>) = ? [pid 9343] <... exit_group resumed>) = ? [pid 9380] +++ exited with 0 +++ [pid 9344] <... futex resumed>) = ? [pid 9344] +++ exited with 0 +++ [pid 9343] +++ exited with 0 +++ [pid 9452] setpgid(0, 0 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9343, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=100 /* 1.00 s */} --- [pid 9452] <... setpgid resumed>) = 0 [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 9452] <... openat resumed>) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 9452] write(3, "1000", 4 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9452] <... write resumed>) = 4 [pid 5850] close(3 [pid 9452] close(3 [pid 5850] <... close resumed>) = 0 [pid 9452] <... close resumed>) = 0 [pid 9452] write(1, "executing program\n", 18executing program [pid 9383] <... close resumed>) = 0 [pid 9452] <... write resumed>) = 18 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9453 attached [pid 9452] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 9453 [pid 9453] set_robust_list(0x5555693e0760, 24 [pid 9452] <... futex resumed>) = 0 [pid 9383] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9452] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9383] <... futex resumed>) = 1 [pid 9345] <... futex resumed>) = 0 [pid 9452] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9383] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9453] <... set_robust_list resumed>) = 0 [pid 9452] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9345] exit_group(0 [pid 9452] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9383] <... futex resumed>) = ? [pid 9348] <... futex resumed>) = ? [pid 9345] <... exit_group resumed>) = ? [pid 9453] <... prctl resumed>) = 0 [pid 9452] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9383] +++ exited with 0 +++ [pid 9348] +++ exited with 0 +++ [pid 9453] setpgid(0, 0) = 0 [pid 9453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9452] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9453] <... openat resumed>) = 3 [pid 9345] +++ exited with 0 +++ [pid 9452] <... mprotect resumed>) = 0 [pid 9453] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9345, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=89 /* 0.89 s */} --- [pid 9453] <... write resumed>) = 4 [pid 9452] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9453] close(3 [pid 9452] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9453] <... close resumed>) = 0 [pid 9452] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9427] <... close resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 9454 attached [pid 9427] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9454] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9452] <... clone3 resumed> => {parent_tid=[9454]}, 88) = 9454 [pid 9418] <... futex resumed>) = 0 [pid 9427] <... futex resumed>) = 1 [pid 9454] <... rseq resumed>) = 0 [pid 9452] rt_sigprocmask(SIG_SETMASK, [], [pid 9427] creat("./bus", 000 [pid 9418] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9454] set_robust_list(0x7ff7dbc929a0, 24 [pid 9452] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9418] <... futex resumed>) = 0 [pid 9454] <... set_robust_list resumed>) = 0 [pid 9452] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9418] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9454] rt_sigprocmask(SIG_SETMASK, [], [pid 9452] <... futex resumed>) = 0 [pid 9454] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9452] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}executing program [pid 9454] memfd_create("syzkaller", 0 [pid 9453] write(1, "executing program\n", 18 [pid 5847] <... openat resumed>) = 3 [pid 9454] <... memfd_create resumed>) = 3 [pid 9453] <... write resumed>) = 18 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 9454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9453] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9454] <... mmap resumed>) = 0x7ff7d3800000 [pid 9453] <... futex resumed>) = 0 [pid 5847] close(3) = 0 [pid 9453] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9455 attached [pid 9453] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9427] <... creat resumed>) = 3 [pid 9455] set_robust_list(0x5555693e0760, 24 [pid 9453] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9427] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 9455 [pid 9455] <... set_robust_list resumed>) = 0 [pid 9453] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9427] <... futex resumed>) = 1 [pid 9418] <... futex resumed>) = 0 [pid 9455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9455] setpgid(0, 0 [pid 9453] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9455] <... setpgid resumed>) = 0 [pid 9453] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9453] <... mprotect resumed>) = 0 [pid 9427] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9418] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9455] <... openat resumed>) = 3 [pid 9418] <... futex resumed>) = 0 [pid 9455] write(3, "1000", 4 [pid 9453] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9418] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9455] <... write resumed>) = 4 [pid 9453] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9455] close(3) = 0 [pid 9453] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}executing program [pid 9455] write(1, "executing program\n", 18 [pid 9453] <... clone3 resumed> => {parent_tid=[9456]}, 88) = 9456 [pid 9455] <... write resumed>) = 18 [pid 9453] rt_sigprocmask(SIG_SETMASK, [], [pid 9455] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9453] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9455] <... futex resumed>) = 0 [pid 9453] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9455] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9453] <... futex resumed>) = 0 [pid 9455] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9453] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9455] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 ./strace-static-x86_64: Process 9456 attached [pid 9455] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9456] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9455] <... mprotect resumed>) = 0 [pid 9455] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9456] <... rseq resumed>) = 0 [pid 9455] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9456] set_robust_list(0x7ff7dbc929a0, 24 [pid 9455] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9456] <... set_robust_list resumed>) = 0 [pid 9456] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9457 attached [pid 9455] <... clone3 resumed> => {parent_tid=[9457]}, 88) = 9457 [pid 9457] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9455] rt_sigprocmask(SIG_SETMASK, [], [pid 9457] <... rseq resumed>) = 0 [pid 9455] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9457] set_robust_list(0x7ff7dbc929a0, 24 [pid 9455] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9457] <... set_robust_list resumed>) = 0 [pid 9455] <... futex resumed>) = 0 [pid 9457] rt_sigprocmask(SIG_SETMASK, [], [pid 9455] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9457] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9457] memfd_create("syzkaller", 0) = 3 [pid 9456] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9456] memfd_create("syzkaller", 0) = 3 [pid 9456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9418] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9418] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9418] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9418] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9418] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9458 attached => {parent_tid=[9458]}, 88) = 9458 [pid 9418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9418] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9458] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9418] <... futex resumed>) = 0 [pid 9458] <... rseq resumed>) = 0 [pid 9418] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9458] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9458] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9458] memfd_create("syzkaller", 0) = 4 [pid 9458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9451] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9454] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9458] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9456] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9451] <... write resumed>) = 16777216 [pid 9451] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9451] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9451] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9451] close(3) = 0 [pid 9451] close(4) = 0 [pid 9451] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 348.345713][ T9451] loop1: detected capacity change from 0 to 32768 [pid 9451] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9458] <... write resumed>) = 16777216 [pid 9457] <... write resumed>) = 16777216 [pid 9427] <... write resumed>) = 16776704 [pid 9458] munmap(0x7ff7d3800000, 138412032 [pid 9457] munmap(0x7ff7d3800000, 138412032 [pid 9454] <... write resumed>) = 16777216 [pid 9454] munmap(0x7ff7d3800000, 138412032 [pid 9427] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9427] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9458] <... munmap resumed>) = 0 [pid 9454] <... munmap resumed>) = 0 [pid 9457] <... munmap resumed>) = 0 [pid 9457] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9456] <... write resumed>) = 16777216 [pid 9454] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9457] <... openat resumed>) = 4 [pid 9458] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9457] ioctl(4, LOOP_SET_FD, 3 [pid 9458] <... openat resumed>) = 5 [pid 9456] munmap(0x7ff7d3800000, 138412032 [pid 9454] <... openat resumed>) = 4 [pid 9458] ioctl(5, LOOP_SET_FD, 4 [pid 9457] <... ioctl resumed>) = 0 [pid 9454] ioctl(4, LOOP_SET_FD, 3 [pid 9458] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9457] close(3 [pid 9458] ioctl(5, LOOP_CLR_FD [pid 9457] <... close resumed>) = 0 [pid 9458] <... ioctl resumed>) = 0 [ 348.506431][ T9451] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 348.529318][ T9451] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 348.543110][ T9457] loop3: detected capacity change from 0 to 32768 [pid 9457] close(4) = 0 [pid 9457] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9458] ioctl(5, LOOP_SET_FD, 4 [pid 9457] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9458] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9458] close(5) = 0 [pid 9458] close(4 [pid 9454] <... ioctl resumed>) = 0 [pid 9454] close(3) = 0 [pid 9454] close(4) = 0 [pid 9454] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 348.556943][ T9454] loop0: detected capacity change from 0 to 32768 [pid 9454] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9456] <... munmap resumed>) = 0 [pid 9456] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9456] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9456] close(3) = 0 [ 348.632265][ T9456] loop4: detected capacity change from 0 to 32768 [pid 9456] close(4) = 0 [pid 9458] <... close resumed>) = 0 [pid 9456] mkdir("./file1", 0777 [pid 9458] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9456] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9418] <... futex resumed>) = 0 [pid 9458] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9456] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9418] exit_group(0) = ? [pid 9427] <... futex resumed>) = ? [pid 9458] <... futex resumed>) = ? [pid 9427] +++ exited with 0 +++ [pid 9451] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9451] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 348.722280][ T9451] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9451] ioctl(3, LOOP_CLR_FD) = 0 [ 348.780662][ T9457] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 348.796530][ T9457] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 348.824586][ T9454] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 348.849864][ T9454] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9451] close(3 [pid 9457] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9457] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 9457] ioctl(3, LOOP_CLR_FD) = 0 [ 348.904783][ T9456] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 348.927810][ T9456] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 348.948644][ T9457] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9457] close(3 [pid 9451] <... close resumed>) = 0 [pid 9451] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9450] <... futex resumed>) = 0 [pid 9450] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9451] creat("./bus", 000 [pid 9450] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9458] +++ exited with 0 +++ [pid 9418] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9418, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=97 /* 0.97 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9450] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9454] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9450] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9454] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9450] <... futex resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5845] <... openat resumed>) = 3 [pid 9454] <... openat resumed>) = 3 [pid 9450] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9454] ioctl(3, LOOP_CLR_FD [pid 9450] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 5845] ioctl(3, LOOP_CLR_FD [pid 9454] <... ioctl resumed>) = 0 [ 349.081951][ T9454] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9454] close(3 [pid 9450] <... mprotect resumed>) = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 5845] close(3) = 0 [pid 9450] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9450] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 9487 attached [pid 9450] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 9487 [pid 9487] set_robust_list(0x5555693e0760, 24) = 0 [pid 9487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9450] <... clone3 resumed> => {parent_tid=[9488]}, 88) = 9488 ./strace-static-x86_64: Process 9488 attached [pid 9487] <... prctl resumed>) = 0 [pid 9450] rt_sigprocmask(SIG_SETMASK, [], [pid 9487] setpgid(0, 0) = 0 [pid 9488] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9487] <... openat resumed>) = 3 [pid 9450] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9488] <... rseq resumed>) = 0 [pid 9487] write(3, "1000", 4 [pid 9450] <... futex resumed>) = 0 [pid 9488] set_robust_list(0x7ff7dbc719a0, 24 [pid 9450] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9488] <... set_robust_list resumed>) = 0 [pid 9488] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9488] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9487] <... write resumed>) = 4 executing program [pid 9488] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9487] close(3 [pid 9488] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9487] <... close resumed>) = 0 [pid 9488] <... futex resumed>) = 1 [pid 9487] write(1, "executing program\n", 18 [pid 9450] <... futex resumed>) = 0 [pid 9487] <... write resumed>) = 18 [pid 9450] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9487] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] <... futex resumed>) = 0 [pid 9488] memfd_create("syzkaller", 0 [pid 9487] <... futex resumed>) = 0 [pid 9450] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9487] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9487] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9487] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9487] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9487] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9489 attached => {parent_tid=[9489]}, 88) = 9489 [pid 9489] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9487] rt_sigprocmask(SIG_SETMASK, [], [pid 9489] <... rseq resumed>) = 0 [pid 9487] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9489] set_robust_list(0x7ff7dbc929a0, 24 [pid 9487] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9489] <... set_robust_list resumed>) = 0 [pid 9487] <... futex resumed>) = 0 [pid 9489] rt_sigprocmask(SIG_SETMASK, [], [pid 9488] <... memfd_create resumed>) = 4 [pid 9487] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9489] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9489] memfd_create("syzkaller", 0 [pid 9488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9489] <... memfd_create resumed>) = 3 [pid 9489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9456] <... mount resumed>) = -1 EINVAL (Invalid argument) [ 349.188575][ T9456] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9456] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 9456] ioctl(3, LOOP_CLR_FD) = 0 [pid 9456] close(3 [pid 9457] <... close resumed>) = 0 [pid 9457] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9455] <... futex resumed>) = 0 [pid 9457] creat("./bus", 000 [pid 9455] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9455] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9455] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9455] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9455] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9455] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9490]}, 88) = 9490 [pid 9455] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9455] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9455] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9490 attached [pid 9490] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9490] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9490] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9490] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9455] <... futex resumed>) = 0 [pid 9455] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9455] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9490] memfd_create("syzkaller", 0) = 4 [pid 9490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9454] <... close resumed>) = 0 [pid 9454] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9452] <... futex resumed>) = 0 [pid 9454] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9452] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9454] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9454] creat("./bus", 000 [pid 9452] <... futex resumed>) = 0 [pid 9452] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9452] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9452] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9452] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9452] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9491]}, 88) = 9491 [pid 9452] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9452] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9452] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9491 attached [pid 9451] <... creat resumed>) = 3 [pid 9491] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9457] <... creat resumed>) = 3 [pid 9491] set_robust_list(0x7ff7dbc719a0, 24 [pid 9457] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9491] <... set_robust_list resumed>) = 0 [pid 9457] <... futex resumed>) = 0 [pid 9454] <... creat resumed>) = 3 [pid 9491] rt_sigprocmask(SIG_SETMASK, [], [pid 9457] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9454] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9491] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9456] <... close resumed>) = 0 [pid 9454] <... futex resumed>) = 0 [pid 9451] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9491] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9456] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9454] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9451] <... futex resumed>) = 0 [pid 9451] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9456] <... futex resumed>) = 1 [pid 9456] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9489] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9453] <... futex resumed>) = 0 [pid 9452] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9453] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9452] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9454] <... futex resumed>) = 0 [pid 9453] <... futex resumed>) = 1 [pid 9452] <... futex resumed>) = 1 [pid 9456] <... futex resumed>) = 0 [pid 9454] memfd_create("syzkaller", 0 [pid 9453] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9452] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9456] creat("./bus", 000 [pid 9454] <... memfd_create resumed>) = 4 [pid 9454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9488] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9453] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9453] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9453] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9453] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9453] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9492 attached [pid 9492] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9453] <... clone3 resumed> => {parent_tid=[9492]}, 88) = 9492 [pid 9492] <... rseq resumed>) = 0 [pid 9453] rt_sigprocmask(SIG_SETMASK, [], [pid 9492] set_robust_list(0x7ff7dbc719a0, 24 [pid 9453] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9492] <... set_robust_list resumed>) = 0 [pid 9453] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9492] rt_sigprocmask(SIG_SETMASK, [], [pid 9453] <... futex resumed>) = 0 [pid 9453] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9492] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9492] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9492] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9453] <... futex resumed>) = 0 [pid 9492] memfd_create("syzkaller", 0 [pid 9453] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9492] <... memfd_create resumed>) = 4 [pid 9453] <... futex resumed>) = 0 [pid 9492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9453] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9492] <... mmap resumed>) = 0x7ff7d3800000 [pid 9490] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9454] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9489] <... write resumed>) = 16777216 [pid 9489] munmap(0x7ff7d3800000, 138412032 [pid 9492] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9489] <... munmap resumed>) = 0 [pid 9489] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9488] <... write resumed>) = 16777216 [pid 9489] <... openat resumed>) = 4 [pid 9489] ioctl(4, LOOP_SET_FD, 3 [pid 9488] munmap(0x7ff7d3800000, 138412032 [pid 9489] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9489] ioctl(4, LOOP_CLR_FD) = 0 [pid 9488] <... munmap resumed>) = 0 [pid 9489] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9489] close(4 [pid 9488] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9489] <... close resumed>) = 0 [pid 9488] <... openat resumed>) = 5 [pid 9488] ioctl(5, LOOP_SET_FD, 4 [pid 9489] close(3 [pid 9488] <... ioctl resumed>) = 0 [pid 9488] close(4) = 0 [pid 9488] close(5 [pid 9490] <... write resumed>) = 16777216 [pid 9488] <... close resumed>) = 0 [pid 9488] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9488] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 350.215129][ T9488] loop1: detected capacity change from 0 to 32768 [pid 9490] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9490] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 350.282845][ T9488] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9488) [ 350.316102][ T9490] loop3: detected capacity change from 0 to 32768 [pid 9490] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9490] close(4) = 0 [pid 9490] close(5) = 0 [pid 9490] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 350.344536][ T9488] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 350.367895][ T9488] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 350.397117][ T9490] BTRFS: device /dev/loop3 (7:3) using temp-fsid f7dc472b-1bb8-4726-b013-af789244c822 [ 350.418234][ T9490] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9490) [ 350.467491][ T9490] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 350.535794][ T9490] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 9490] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9489] <... close resumed>) = 0 [pid 9489] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9489] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9487] <... futex resumed>) = 0 [pid 9487] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9489] <... futex resumed>) = 0 [ 350.579060][ T9488] BTRFS info (device loop1): rebuilding free space tree [ 350.602558][ T9488] BTRFS info (device loop1): disabling free space tree [pid 9487] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9489] creat("./bus", 000 [pid 9492] <... write resumed>) = 16777216 [pid 9492] munmap(0x7ff7d3800000, 138412032) = 0 [ 350.648300][ T9488] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9454] <... write resumed>) = 16777216 [pid 9492] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9487] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9487] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9492] <... openat resumed>) = 5 [pid 9454] munmap(0x7ff7d3800000, 138412032 [pid 9487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9492] ioctl(5, LOOP_SET_FD, 4 [pid 9487] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9492] <... ioctl resumed>) = 0 [pid 9487] <... mprotect resumed>) = 0 [pid 9487] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 350.696173][ T9490] BTRFS info (device loop3): rebuilding free space tree [ 350.697902][ T9488] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 350.730014][ T9492] loop4: detected capacity change from 0 to 32768 [pid 9454] <... munmap resumed>) = 0 [pid 9487] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 9454] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 9525 attached [pid 9491] <... write resumed>) = 16776704 [pid 9454] <... openat resumed>) = 5 [pid 9491] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9487] <... clone3 resumed> => {parent_tid=[9525]}, 88) = 9525 [pid 9454] ioctl(5, LOOP_SET_FD, 4 [pid 9525] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9492] close(4 [pid 9491] <... futex resumed>) = 0 [pid 9487] rt_sigprocmask(SIG_SETMASK, [], [pid 9525] <... rseq resumed>) = 0 [pid 9454] <... ioctl resumed>) = 0 [pid 9525] set_robust_list(0x7ff7dbc719a0, 24 [pid 9492] <... close resumed>) = 0 [pid 9491] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9487] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9525] <... set_robust_list resumed>) = 0 [pid 9487] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9492] close(5 [pid 9525] rt_sigprocmask(SIG_SETMASK, [], [pid 9492] <... close resumed>) = 0 [pid 9487] <... futex resumed>) = 0 [pid 9525] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9492] mkdir("./bus", 0777 [pid 9487] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9492] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9525] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9492] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9525] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9487] <... futex resumed>) = 0 [pid 9454] close(4) = 0 [pid 9454] close(5) = 0 [pid 9454] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9454] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9487] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 350.743806][ T9490] BTRFS info (device loop3): disabling free space tree [ 350.754099][ T9454] loop0: detected capacity change from 0 to 32768 [ 350.761432][ T9490] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 350.785445][ T9492] BTRFS: device /dev/loop4 (7:4) using temp-fsid 279c266b-871d-4f0d-afba-7b7b2afd3fd7 [pid 9487] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9525] memfd_create("syzkaller", 0) = 4 [pid 9525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 350.796672][ T9490] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 350.827851][ T9492] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9492) [ 350.892299][ T9454] BTRFS: device /dev/loop0 (7:0) using temp-fsid bbe2dbfe-e031-4368-97dc-baec527e8277 [ 350.904056][ T9492] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 350.915723][ T9454] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9454) [ 350.948096][ T9492] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 350.978256][ T9454] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 351.015869][ T9454] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 9525] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9489] <... creat resumed>) = 3 [pid 9489] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 351.121017][ T9492] BTRFS info (device loop4): rebuilding free space tree [ 351.138810][ T9488] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 351.154748][ T9490] BTRFS info (device loop3): last unmount of filesystem f7dc472b-1bb8-4726-b013-af789244c822 [pid 9489] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9456] <... creat resumed>) = 3 [pid 9456] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 351.183416][ T9454] BTRFS info (device loop0): rebuilding free space tree [ 351.200605][ T9492] BTRFS info (device loop4): disabling free space tree [ 351.225397][ T9492] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9456] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9490] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9488] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9490] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 9490] ioctl(4, LOOP_CLR_FD [pid 9488] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9490] <... ioctl resumed>) = 0 [pid 9490] close(4 [pid 9488] <... openat resumed>) = 4 [pid 9488] ioctl(4, LOOP_CLR_FD) = 0 [ 351.267780][ T9492] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 351.286726][ T9454] BTRFS info (device loop0): disabling free space tree [ 351.338516][ T9454] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 351.386291][ T9454] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 351.430335][ T9492] BTRFS info (device loop4): last unmount of filesystem 279c266b-871d-4f0d-afba-7b7b2afd3fd7 [ 351.486618][ T9454] BTRFS info (device loop0): last unmount of filesystem bbe2dbfe-e031-4368-97dc-baec527e8277 [pid 9488] close(4 [pid 9492] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9454] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9492] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9454] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9492] <... openat resumed>) = 4 [pid 9492] ioctl(4, LOOP_CLR_FD [pid 9454] <... openat resumed>) = 4 [pid 9492] <... ioctl resumed>) = 0 [pid 9454] ioctl(4, LOOP_CLR_FD [pid 9492] close(4 [pid 9454] <... ioctl resumed>) = 0 [pid 9454] close(4 [pid 9490] <... close resumed>) = 0 [pid 9488] <... close resumed>) = 0 [pid 9525] <... write resumed>) = 16777216 [pid 9525] munmap(0x7ff7d3800000, 138412032 [pid 9490] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9490] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9488] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] <... futex resumed>) = 0 [pid 9450] exit_group(0 [pid 9451] <... futex resumed>) = ? [pid 9450] <... exit_group resumed>) = ? [pid 9451] +++ exited with 0 +++ [pid 9488] <... futex resumed>) = ? [pid 9455] <... futex resumed>) = 0 [pid 9525] <... munmap resumed>) = 0 [pid 9488] +++ exited with 0 +++ [pid 9455] exit_group(0 [pid 9450] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9450, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=104 /* 1.04 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3 [pid 9490] <... futex resumed>) = ? [pid 9455] <... exit_group resumed>) = ? [pid 5844] <... close resumed>) = 0 [pid 9490] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9558 attached [pid 9525] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9457] <... futex resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 9558 [pid 9558] set_robust_list(0x5555693e0760, 24) = 0 [pid 9558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9525] <... openat resumed>) = 5 [pid 9457] +++ exited with 0 +++ [pid 9455] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9455, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=90 /* 0.90 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9558] <... prctl resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 9558] setpgid(0, 0 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 9558] <... setpgid resumed>) = 0 [pid 9525] ioctl(5, LOOP_SET_FD, 4 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9525] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5847] close(3 [pid 9558] <... openat resumed>) = 3 [pid 9525] ioctl(5, LOOP_CLR_FD [pid 5847] <... close resumed>) = 0 [pid 9525] <... ioctl resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9559 attached [pid 9559] set_robust_list(0x5555693e0760, 24 [pid 9558] write(3, "1000", 4 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 9559 [pid 9525] ioctl(5, LOOP_SET_FD, 4 [pid 9558] <... write resumed>) = 4 [pid 9525] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9525] close(5 [pid 9558] close(3 [pid 9525] <... close resumed>) = 0 [pid 9558] <... close resumed>) = 0 [pid 9558] write(1, "executing program\n", 18executing program ) = 18 [pid 9558] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9558] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9558] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9559] <... set_robust_list resumed>) = 0 [pid 9558] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9525] close(4 [pid 9558] <... mprotect resumed>) = 0 [pid 9558] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9558] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9560]}, 88) = 9560 [pid 9558] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9560 attached NULL, 8) = 0 [pid 9558] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9558] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9560] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9560] set_robust_list(0x7ff7dbc929a0, 24 [pid 9559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9560] <... set_robust_list resumed>) = 0 [pid 9559] <... prctl resumed>) = 0 [pid 9560] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9560] memfd_create("syzkaller", 0 [pid 9559] setpgid(0, 0 [pid 9560] <... memfd_create resumed>) = 3 [pid 9559] <... setpgid resumed>) = 0 [pid 9559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9559] <... openat resumed>) = 3 [pid 9559] write(3, "1000", 4) = 4 [pid 9559] close(3) = 0 executing program [pid 9559] write(1, "executing program\n", 18) = 18 [pid 9559] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9559] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9559] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9454] <... close resumed>) = 0 [pid 9559] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9454] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9559] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9454] <... futex resumed>) = 1 [pid 9452] <... futex resumed>) = 0 [pid 9559] <... mprotect resumed>) = 0 [pid 9492] <... close resumed>) = 0 [pid 9454] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9452] exit_group(0 [pid 9559] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9492] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9491] <... futex resumed>) = ? [pid 9452] <... exit_group resumed>) = ? [pid 9454] <... futex resumed>) = ? [pid 9454] +++ exited with 0 +++ [pid 9491] +++ exited with 0 +++ [pid 9559] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9492] <... futex resumed>) = 1 [pid 9453] <... futex resumed>) = 0 [pid 9559] <... clone3 resumed> => {parent_tid=[9561]}, 88) = 9561 ./strace-static-x86_64: Process 9561 attached [pid 9559] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9559] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9559] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9561] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9492] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9453] exit_group(0 [pid 9561] <... rseq resumed>) = 0 [pid 9561] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9561] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9456] <... futex resumed>) = ? [pid 9453] <... exit_group resumed>) = ? [pid 9561] memfd_create("syzkaller", 0 [pid 9456] +++ exited with 0 +++ [pid 9561] <... memfd_create resumed>) = 3 [pid 9561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9492] <... futex resumed>) = ? [pid 9492] +++ exited with 0 +++ [pid 9453] +++ exited with 0 +++ [pid 9452] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9452, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=119 /* 1.19 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9562 attached [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9453, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=104 /* 1.04 s */} --- [pid 9562] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 9562 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9562] <... set_robust_list resumed>) = 0 [pid 5850] <... openat resumed>) = 3 [pid 9562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9562] <... prctl resumed>) = 0 [pid 5850] close(3) = 0 [pid 9562] setpgid(0, 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9563 attached , child_tidptr=0x5555693e0750) = 9563 [pid 9563] set_robust_list(0x5555693e0760, 24 [pid 9562] <... setpgid resumed>) = 0 [pid 9562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9563] <... set_robust_list resumed>) = 0 [pid 9563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9562] <... openat resumed>) = 3 [pid 9563] <... prctl resumed>) = 0 [pid 9562] write(3, "1000", 4 [pid 9563] setpgid(0, 0 [pid 9562] <... write resumed>) = 4 [pid 9562] close(3 [pid 9563] <... setpgid resumed>) = 0 [pid 9563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9562] <... close resumed>) = 0 [pid 9563] <... openat resumed>) = 3 [pid 9562] write(1, "executing program\n", 18executing program [pid 9563] write(3, "1000", 4) = 4 [pid 9563] close(3) = 0 [pid 9563] write(1, "executing program\n", 18) = 18 [pid 9563] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9563] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9563] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9563] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9563] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9563] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9563] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}executing program [pid 9562] <... write resumed>) = 18 [pid 9563] <... clone3 resumed> => {parent_tid=[9564]}, 88) = 9564 [pid 9562] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9564 attached [pid 9563] rt_sigprocmask(SIG_SETMASK, [], [pid 9562] <... futex resumed>) = 0 [pid 9562] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9563] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9562] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9564] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9563] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9562] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9564] <... rseq resumed>) = 0 [pid 9563] <... futex resumed>) = 0 [pid 9562] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9563] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9562] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9562] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9562] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9565 attached => {parent_tid=[9565]}, 88) = 9565 [pid 9565] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9562] rt_sigprocmask(SIG_SETMASK, [], [pid 9565] <... rseq resumed>) = 0 [pid 9562] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9564] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9564] memfd_create("syzkaller", 0) = 3 [pid 9564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9565] set_robust_list(0x7ff7dbc929a0, 24 [pid 9562] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9565] <... set_robust_list resumed>) = 0 [pid 9562] <... futex resumed>) = 0 [pid 9565] rt_sigprocmask(SIG_SETMASK, [], [pid 9562] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9565] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9565] memfd_create("syzkaller", 0) = 3 [pid 9565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9525] <... close resumed>) = 0 [pid 9525] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9525] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9487] <... futex resumed>) = 0 [pid 9487] exit_group(0) = ? [pid 9489] <... futex resumed>) = ? [pid 9525] <... futex resumed>) = ? [pid 9489] +++ exited with 0 +++ [pid 9525] +++ exited with 0 +++ [pid 9487] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9487, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=72 /* 0.72 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9566 ./strace-static-x86_64: Process 9566 attached [pid 9566] set_robust_list(0x5555693e0760, 24) = 0 [pid 9566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9566] setpgid(0, 0) = 0 [pid 9566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 9566] write(3, "1000", 4) = 4 [pid 9566] close(3) = 0 [pid 9566] write(1, "executing program\n", 18) = 18 [pid 9566] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9566] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9566] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9566] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9566] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9566] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9567]}, 88) = 9567 [pid 9566] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9566] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9566] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9567 attached [pid 9567] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9567] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9567] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9567] memfd_create("syzkaller", 0) = 3 [pid 9567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9560] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9561] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9564] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9567] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9560] <... write resumed>) = 16777216 [pid 9560] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9560] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9560] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9560] close(3) = 0 [pid 9560] close(4) = 0 [pid 9561] <... write resumed>) = 16777216 [pid 9560] mkdir("./file1", 0777 [pid 9561] munmap(0x7ff7d3800000, 138412032 [pid 9560] <... mkdir resumed>) = -1 EEXIST (File exists) [ 352.684763][ T9560] loop1: detected capacity change from 0 to 32768 [pid 9560] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9561] <... munmap resumed>) = 0 [pid 9561] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 9561] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9561] close(3) = 0 [pid 9561] close(4) = 0 [pid 9561] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 352.789328][ T9561] loop3: detected capacity change from 0 to 32768 [pid 9561] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9564] <... write resumed>) = 16777216 [pid 9564] munmap(0x7ff7d3800000, 138412032 [pid 9567] <... write resumed>) = 16777216 [pid 9567] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9567] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9567] ioctl(4, LOOP_SET_FD, 3 [pid 9564] <... munmap resumed>) = 0 [pid 9567] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9567] ioctl(4, LOOP_CLR_FD [pid 9564] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9567] <... ioctl resumed>) = 0 [ 352.892793][ T9560] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 352.911545][ T9560] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 352.916649][ T9561] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9564] <... openat resumed>) = 4 [pid 9564] ioctl(4, LOOP_SET_FD, 3 [pid 9567] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9567] close(4) = 0 [pid 9565] <... write resumed>) = 16777216 [pid 9567] close(3 [pid 9564] <... ioctl resumed>) = 0 [pid 9564] close(3) = 0 [ 352.941690][ T9564] loop4: detected capacity change from 0 to 32768 [pid 9564] close(4) = 0 [pid 9564] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9564] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9565] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9565] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9565] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9560] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9565] close(3 [pid 9560] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9565] <... close resumed>) = 0 [pid 9560] <... openat resumed>) = 3 [pid 9565] close(4 [pid 9560] ioctl(3, LOOP_CLR_FD [pid 9565] <... close resumed>) = 0 [pid 9560] <... ioctl resumed>) = 0 [pid 9560] close(3 [pid 9565] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 353.019921][ T9560] bcachefs: bch2_fs_get_tree() error: EINVAL [ 353.029368][ T9565] loop0: detected capacity change from 0 to 32768 [ 353.032906][ T9561] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9565] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9567] <... close resumed>) = 0 [pid 9567] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9566] <... futex resumed>) = 0 [pid 9566] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9566] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9567] creat("./bus", 000) = 3 [pid 9567] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9566] <... futex resumed>) = 0 [pid 9567] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9566] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9567] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9566] <... futex resumed>) = 0 [pid 9567] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [ 353.163186][ T9564] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 353.201818][ T9564] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9566] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9566] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 353.220908][ T9565] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 353.258676][ T9565] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9566] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9566] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9566] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9596 attached => {parent_tid=[9596]}, 88) = 9596 [pid 9566] rt_sigprocmask(SIG_SETMASK, [], [pid 9596] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9566] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9561] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9566] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9566] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9596] <... rseq resumed>) = 0 [pid 9561] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9596] set_robust_list(0x7ff7dbc719a0, 24 [pid 9561] <... openat resumed>) = 3 [pid 9596] <... set_robust_list resumed>) = 0 [pid 9561] ioctl(3, LOOP_CLR_FD [pid 9596] rt_sigprocmask(SIG_SETMASK, [], [pid 9561] <... ioctl resumed>) = 0 [pid 9596] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9561] close(3 [ 353.272459][ T9561] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9596] memfd_create("syzkaller", 0) = 4 [pid 9596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9560] <... close resumed>) = 0 [pid 9560] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9558] <... futex resumed>) = 0 [pid 9560] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9558] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9560] <... futex resumed>) = 0 [pid 9558] <... futex resumed>) = 1 [pid 9560] creat("./bus", 000 [pid 9558] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9564] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9564] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9558] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9564] <... openat resumed>) = 3 [pid 9558] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9564] ioctl(3, LOOP_CLR_FD [pid 9558] <... futex resumed>) = 0 [pid 9558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9564] <... ioctl resumed>) = 0 [pid 9564] close(3 [pid 9558] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9558] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9558] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9558] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9597 attached [pid 9597] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9558] <... clone3 resumed> => {parent_tid=[9597]}, 88) = 9597 [pid 9597] <... rseq resumed>) = 0 [pid 9558] rt_sigprocmask(SIG_SETMASK, [], [pid 9597] set_robust_list(0x7ff7dbc719a0, 24 [pid 9558] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9597] <... set_robust_list resumed>) = 0 [pid 9558] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9597] rt_sigprocmask(SIG_SETMASK, [], [pid 9558] <... futex resumed>) = 0 [pid 9597] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9558] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9597] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9597] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9558] <... futex resumed>) = 0 [pid 9597] memfd_create("syzkaller", 0 [pid 9558] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9597] <... memfd_create resumed>) = 4 [pid 9558] <... futex resumed>) = 0 [pid 9597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9558] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9597] <... mmap resumed>) = 0x7ff7d3800000 [ 353.489321][ T9564] bcachefs: bch2_fs_get_tree() error: EINVAL [ 353.508867][ T9565] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9565] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9565] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 9565] ioctl(3, LOOP_CLR_FD) = 0 [pid 9565] close(3 [pid 9561] <... close resumed>) = 0 [pid 9561] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9559] <... futex resumed>) = 0 [pid 9561] creat("./bus", 000 [pid 9559] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9559] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9559] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9559] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9559] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9559] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9598 attached [pid 9598] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9559] <... clone3 resumed> => {parent_tid=[9598]}, 88) = 9598 [pid 9598] <... rseq resumed>) = 0 [pid 9559] rt_sigprocmask(SIG_SETMASK, [], [pid 9598] set_robust_list(0x7ff7dbc719a0, 24 [pid 9559] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9598] <... set_robust_list resumed>) = 0 [pid 9559] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9598] rt_sigprocmask(SIG_SETMASK, [], [pid 9559] <... futex resumed>) = 0 [pid 9598] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9559] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9598] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9598] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9598] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9559] <... futex resumed>) = 0 [pid 9559] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9598] <... futex resumed>) = 0 [pid 9598] memfd_create("syzkaller", 0 [pid 9559] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9598] <... memfd_create resumed>) = 4 [pid 9598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9596] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9564] <... close resumed>) = 0 [pid 9564] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9564] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9563] <... futex resumed>) = 0 [pid 9563] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9564] <... futex resumed>) = 0 [pid 9563] <... futex resumed>) = 1 [pid 9564] creat("./bus", 000 [pid 9563] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9563] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9563] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9563] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9563] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9563] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9599 attached => {parent_tid=[9599]}, 88) = 9599 [pid 9563] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9563] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9563] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9599] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9599] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9599] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9599] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9599] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9563] <... futex resumed>) = 0 [pid 9563] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9563] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9599] memfd_create("syzkaller", 0) = 4 [pid 9565] <... close resumed>) = 0 [pid 9599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9565] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9599] <... mmap resumed>) = 0x7ff7d3800000 [pid 9565] <... futex resumed>) = 1 [pid 9562] <... futex resumed>) = 0 [pid 9562] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9562] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9565] creat("./bus", 000 [pid 9562] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9562] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9562] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9562] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9562] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9600 attached [pid 9600] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9562] <... clone3 resumed> => {parent_tid=[9600]}, 88) = 9600 [pid 9562] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9600] <... rseq resumed>) = 0 [pid 9562] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9600] set_robust_list(0x7ff7dbc719a0, 24 [pid 9562] <... futex resumed>) = 0 [pid 9562] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9600] <... set_robust_list resumed>) = 0 [pid 9600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9600] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9600] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9562] <... futex resumed>) = 0 [pid 9600] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9562] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9562] <... futex resumed>) = 0 [pid 9600] memfd_create("syzkaller", 0 [pid 9562] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9600] <... memfd_create resumed>) = 4 [pid 9597] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9598] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9567] <... write resumed>) = 16776704 [pid 9567] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9567] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9596] <... write resumed>) = 16777216 [pid 9596] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9596] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9596] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9596] ioctl(5, LOOP_CLR_FD) = 0 [pid 9596] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9596] close(5) = 0 [pid 9596] close(4 [pid 9599] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9600] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9596] <... close resumed>) = 0 [pid 9596] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9566] <... futex resumed>) = 0 [pid 9596] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9566] exit_group(0 [pid 9596] <... futex resumed>) = ? [pid 9567] <... futex resumed>) = ? [pid 9566] <... exit_group resumed>) = ? [pid 9596] +++ exited with 0 +++ [pid 9597] <... write resumed>) = 16777216 [pid 9597] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9597] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 9597] ioctl(5, LOOP_SET_FD, 4 [pid 9567] +++ exited with 0 +++ [pid 9566] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9566, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=95 /* 0.95 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9601 ./strace-static-x86_64: Process 9601 attached [pid 9601] set_robust_list(0x5555693e0760, 24 [pid 9597] <... ioctl resumed>) = 0 [pid 9601] <... set_robust_list resumed>) = 0 [pid 9597] close(4 [pid 9601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9597] <... close resumed>) = 0 [pid 9601] <... prctl resumed>) = 0 [pid 9597] close(5) = 0 [pid 9601] setpgid(0, 0 [pid 9597] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9601] <... setpgid resumed>) = 0 [pid 9597] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9601] write(3, "1000", 4) = 4 [pid 9601] close(3) = 0 [pid 9565] <... creat resumed>) = 3 [pid 9564] <... creat resumed>) = 3 [pid 9561] <... creat resumed>) = 3 [pid 9560] <... creat resumed>) = 3 [pid 9565] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9561] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9560] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9565] <... futex resumed>) = 0 [pid 9561] <... futex resumed>) = 0 [pid 9565] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9561] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULLexecuting program [pid 9560] <... futex resumed>) = 0 [pid 9601] write(1, "executing program\n", 18 [pid 9598] <... write resumed>) = 16777216 [pid 9564] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9601] <... write resumed>) = 18 [pid 9598] munmap(0x7ff7d3800000, 138412032 [pid 9564] <... futex resumed>) = 0 [pid 9601] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9564] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 354.618670][ T9597] loop1: detected capacity change from 0 to 32768 [ 354.648085][ T9597] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9597) [pid 9560] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9601] <... futex resumed>) = 0 [pid 9601] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9601] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9601] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9601] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9601] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9602]}, 88) = 9602 [pid 9598] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 9602 attached [pid 9601] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9601] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9601] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9602] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9598] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9602] <... rseq resumed>) = 0 [pid 9598] <... openat resumed>) = 5 [pid 9602] set_robust_list(0x7ff7dbc929a0, 24 [pid 9598] ioctl(5, LOOP_SET_FD, 4 [pid 9602] <... set_robust_list resumed>) = 0 [pid 9602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9602] memfd_create("syzkaller", 0) = 3 [pid 9602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9598] <... ioctl resumed>) = 0 [pid 9598] close(4) = 0 [pid 9598] close(5) = 0 [pid 9598] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 354.710029][ T9597] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 354.728659][ T9598] loop3: detected capacity change from 0 to 32768 [ 354.747469][ T9597] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 9598] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9599] <... write resumed>) = 16777216 [ 354.768828][ T9598] BTRFS: device /dev/loop3 (7:3) using temp-fsid 8b812d44-45ff-4cd9-9ad8-5b34dbaf462b [ 354.792506][ T9598] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9598) [pid 9599] munmap(0x7ff7d3800000, 138412032) = 0 [ 354.843019][ T9598] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 354.857734][ T9598] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 9599] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 9599] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9599] close(4) = 0 [pid 9599] close(5) = 0 [pid 9599] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9600] <... write resumed>) = 16777216 [ 354.893278][ T9599] loop4: detected capacity change from 0 to 32768 [ 354.921170][ T9597] BTRFS info (device loop1): rebuilding free space tree [pid 9599] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9600] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9600] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [ 354.961737][ T9599] BTRFS: device /dev/loop4 (7:4) using temp-fsid f3da3c14-df94-49e2-9300-586e651440a5 [pid 9600] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9600] close(4) = 0 [pid 9600] close(5) = 0 [pid 9600] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 355.006043][ T9597] BTRFS info (device loop1): disabling free space tree [ 355.018831][ T9600] loop0: detected capacity change from 0 to 32768 [ 355.029099][ T9599] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9599) [pid 9600] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 355.068015][ T9597] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 355.094050][ T9597] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 355.116031][ T9599] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 355.136393][ T9600] BTRFS: device /dev/loop0 (7:0) using temp-fsid 8fe47c05-f30f-444e-b36d-7889871fb420 [ 355.161871][ T9599] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 355.172359][ T9600] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9600) [ 355.200528][ T9597] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 355.214489][ T9598] BTRFS info (device loop3): rebuilding free space tree [ 355.241984][ T9600] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 355.278873][ T9600] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 355.289302][ T9598] BTRFS info (device loop3): disabling free space tree [ 355.297915][ T9598] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 355.307690][ T9598] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9602] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9597] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9597] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9597] ioctl(4, LOOP_CLR_FD) = 0 [ 355.405724][ T9598] BTRFS info (device loop3): last unmount of filesystem 8b812d44-45ff-4cd9-9ad8-5b34dbaf462b [ 355.432594][ T9599] BTRFS info (device loop4): rebuilding free space tree [ 355.469538][ T9599] BTRFS info (device loop4): disabling free space tree [ 355.489435][ T9599] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 355.510278][ T9600] BTRFS info (device loop0): rebuilding free space tree [pid 9597] close(4 [pid 9598] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9598] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 9598] ioctl(4, LOOP_CLR_FD) = 0 [ 355.526911][ T9599] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 355.562810][ T9600] BTRFS info (device loop0): disabling free space tree [ 355.597736][ T9600] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9598] close(4 [pid 9602] <... write resumed>) = 16777216 [ 355.643292][ T9600] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 355.654367][ T9599] BTRFS info (device loop4): last unmount of filesystem f3da3c14-df94-49e2-9300-586e651440a5 [pid 9602] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9602] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9602] ioctl(4, LOOP_CLR_FD) = 0 [pid 9602] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9602] close(4) = 0 [pid 9602] close(3 [pid 9597] <... close resumed>) = 0 [ 355.723664][ T9600] BTRFS info (device loop0): last unmount of filesystem 8fe47c05-f30f-444e-b36d-7889871fb420 [pid 9597] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9558] <... futex resumed>) = 0 [pid 9558] exit_group(0 [pid 9597] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9558] <... exit_group resumed>) = ? [pid 9597] <... futex resumed>) = ? [pid 9560] <... futex resumed>) = ? [pid 9560] +++ exited with 0 +++ [pid 9597] +++ exited with 0 +++ [pid 9599] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9558] +++ exited with 0 +++ [pid 9599] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9558, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=97 /* 0.97 s */} --- [pid 9600] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9599] <... openat resumed>) = 4 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9600] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9599] ioctl(4, LOOP_CLR_FD [pid 5844] <... openat resumed>) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 9599] <... ioctl resumed>) = 0 [pid 9600] <... openat resumed>) = 4 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] close(3 [pid 9600] ioctl(4, LOOP_CLR_FD [pid 5844] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9600] <... ioctl resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 9667 ./strace-static-x86_64: Process 9667 attached [pid 9599] close(4 [pid 9667] set_robust_list(0x5555693e0760, 24 [pid 9600] close(4 [pid 9599] <... close resumed>) = 0 [pid 9667] <... set_robust_list resumed>) = 0 [pid 9600] <... close resumed>) = 0 [pid 9599] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9667] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9600] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9599] <... futex resumed>) = 1 [pid 9563] <... futex resumed>) = 0 [pid 9600] <... futex resumed>) = 1 [pid 9599] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9600] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9563] exit_group(0 [pid 9599] <... futex resumed>) = ? [pid 9564] <... futex resumed>) = ? [pid 9563] <... exit_group resumed>) = ? [pid 9667] <... prctl resumed>) = 0 [pid 9599] +++ exited with 0 +++ [pid 9564] +++ exited with 0 +++ [pid 9563] +++ exited with 0 +++ [pid 9562] <... futex resumed>) = 0 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9563, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=70 /* 0.70 s */} --- [pid 9562] exit_group(0 [pid 9667] setpgid(0, 0) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 9667] write(3, "1000", 4) = 4 [pid 9667] close(3) = 0 [pid 9667] write(1, "executing program\n", 18 [pid 9600] <... futex resumed>) = ? [pid 9565] <... futex resumed>) = ? [pid 9667] <... write resumed>) = 18 [pid 9562] <... exit_group resumed>) = ? [pid 9600] +++ exited with 0 +++ [pid 9667] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9565] +++ exited with 0 +++ [pid 9667] <... futex resumed>) = 0 [pid 9598] <... close resumed>) = 0 [pid 9667] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9562] +++ exited with 0 +++ [pid 5850] <... openat resumed>) = 3 [pid 9667] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9562, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=75 /* 0.75 s */} --- [pid 9667] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5850] close(3) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9598] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] <... openat resumed>) = 3 [pid 9598] <... futex resumed>) = 1 [pid 9559] <... futex resumed>) = 0 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 9598] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9559] exit_group(0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9602] <... close resumed>) = 0 [pid 9598] <... futex resumed>) = ? [pid 9561] <... futex resumed>) = ? [pid 9559] <... exit_group resumed>) = ? [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9668 attached [pid 9561] +++ exited with 0 +++ [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 9668 [pid 9598] +++ exited with 0 +++ [pid 9559] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9559, si_uid=0, si_status=0, si_utime=24 /* 0.24 s */, si_stime=83 /* 0.83 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 9602] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9669 attached [pid 9668] set_robust_list(0x5555693e0760, 24 [pid 9667] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 9669 [pid 5847] <... restart_syscall resumed>) = 0 [pid 9667] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9668] <... set_robust_list resumed>) = 0 [pid 9669] set_robust_list(0x5555693e0760, 24 [pid 9668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9667] <... mprotect resumed>) = 0 [pid 9602] <... futex resumed>) = 1 [pid 9601] <... futex resumed>) = 0 [pid 9669] <... set_robust_list resumed>) = 0 [pid 9668] <... prctl resumed>) = 0 [pid 9667] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9601] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9668] setpgid(0, 0 [pid 9667] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9601] <... futex resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 9668] <... setpgid resumed>) = 0 [pid 9667] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9601] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] ioctl(3, LOOP_CLR_FD [pid 9602] creat("./bus", 000 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9602] <... creat resumed>) = 3 [pid 5847] close(3 [pid 9602] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... close resumed>) = 0 [pid 9602] <... futex resumed>) = 1 [pid 9601] <... futex resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9669] <... prctl resumed>) = 0 [pid 9668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9667] <... clone3 resumed> => {parent_tid=[9670]}, 88) = 9670 [pid 9601] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9669] setpgid(0, 0 [pid 9667] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9671 attached [pid 9669] <... setpgid resumed>) = 0 [pid 9668] <... openat resumed>) = 3 [pid 9667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9601] <... futex resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 9671 [pid 9601] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9667] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9670 attached [pid 9671] set_robust_list(0x5555693e0760, 24 [pid 9667] <... futex resumed>) = 0 [pid 9602] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9671] <... set_robust_list resumed>) = 0 [pid 9667] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9670] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9671] setpgid(0, 0 [pid 9670] <... rseq resumed>) = 0 [pid 9669] <... openat resumed>) = 3 [pid 9668] write(3, "1000", 4 [pid 9669] write(3, "1000", 4 [pid 9671] <... setpgid resumed>) = 0 [pid 9670] set_robust_list(0x7ff7dbc929a0, 24 [pid 9671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9670] <... set_robust_list resumed>) = 0 [pid 9668] <... write resumed>) = 4 [pid 9670] rt_sigprocmask(SIG_SETMASK, [], [pid 9669] <... write resumed>) = 4 [pid 9670] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9671] <... openat resumed>) = 3 [pid 9670] memfd_create("syzkaller", 0 [pid 9669] close(3 [pid 9668] close(3 [pid 9670] <... memfd_create resumed>) = 3 [pid 9668] <... close resumed>) = 0 [pid 9669] <... close resumed>) = 0 executing program executing program [pid 9671] write(3, "1000", 4 [pid 9670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9669] write(1, "executing program\n", 18 [pid 9668] write(1, "executing program\n", 18 [pid 9669] <... write resumed>) = 18 [pid 9668] <... write resumed>) = 18 [pid 9670] <... mmap resumed>) = 0x7ff7d3800000 [pid 9669] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9668] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9669] <... futex resumed>) = 0 [pid 9668] <... futex resumed>) = 0 [pid 9669] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9671] <... write resumed>) = 4 [pid 9671] close(3) = 0 [pid 9668] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9669] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9671] write(1, "executing program\n", 18 [pid 9669] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9668] <... rt_sigaction resumed>NULL, 8) = 0 executing program [pid 9669] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9668] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9671] <... write resumed>) = 18 [pid 9671] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9669] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9668] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9671] <... futex resumed>) = 0 [pid 9669] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9671] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9669] <... mprotect resumed>) = 0 [pid 9668] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9671] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9669] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9668] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9671] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9668] <... mprotect resumed>) = 0 [pid 9671] <... mprotect resumed>) = 0 [pid 9671] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9669] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9668] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9601] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9668] <... rt_sigprocmask resumed>[], 8) = 0 ./strace-static-x86_64: Process 9672 attached [pid 9671] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9668] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9601] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9672] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9669] <... clone3 resumed> => {parent_tid=[9672]}, 88) = 9672 ./strace-static-x86_64: Process 9673 attached [pid 9672] <... rseq resumed>) = 0 [pid 9671] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9669] rt_sigprocmask(SIG_SETMASK, [], [pid 9601] <... futex resumed>) = 0 [pid 9673] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9672] set_robust_list(0x7ff7dbc929a0, 24 [pid 9673] <... rseq resumed>) = 0 [pid 9672] <... set_robust_list resumed>) = 0 [pid 9671] <... clone3 resumed> => {parent_tid=[9674]}, 88) = 9674 [pid 9669] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9668] <... clone3 resumed> => {parent_tid=[9673]}, 88) = 9673 [pid 9601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9673] set_robust_list(0x7ff7dbc929a0, 24 [pid 9672] rt_sigprocmask(SIG_SETMASK, [], [pid 9669] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9668] rt_sigprocmask(SIG_SETMASK, [], [pid 9673] <... set_robust_list resumed>) = 0 [pid 9672] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9669] <... futex resumed>) = 0 [pid 9668] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9673] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9674 attached NULL, 8) = 0 [pid 9672] memfd_create("syzkaller", 0 [pid 9671] rt_sigprocmask(SIG_SETMASK, [], [pid 9601] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9669] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9668] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9674] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9673] memfd_create("syzkaller", 0 [pid 9671] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9601] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9672] <... memfd_create resumed>) = 3 [pid 9673] <... memfd_create resumed>) = 3 [pid 9668] <... futex resumed>) = 0 [pid 9673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9668] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9674] <... rseq resumed>) = 0 [pid 9673] <... mmap resumed>) = 0x7ff7d3800000 [pid 9672] <... mmap resumed>) = 0x7ff7d3800000 [pid 9671] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9601] <... mprotect resumed>) = 0 [pid 9674] set_robust_list(0x7ff7dbc929a0, 24 [pid 9671] <... futex resumed>) = 0 [pid 9601] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9674] <... set_robust_list resumed>) = 0 [pid 9671] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9601] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9674] rt_sigprocmask(SIG_SETMASK, [], [pid 9601] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9675 attached [pid 9674] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9674] memfd_create("syzkaller", 0 [pid 9601] <... clone3 resumed> => {parent_tid=[9675]}, 88) = 9675 [pid 9674] <... memfd_create resumed>) = 3 [pid 9601] rt_sigprocmask(SIG_SETMASK, [], [pid 9674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9601] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9674] <... mmap resumed>) = 0x7ff7d3800000 [pid 9601] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9675] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9601] <... futex resumed>) = 0 [pid 9675] <... rseq resumed>) = 0 [pid 9675] set_robust_list(0x7ff7dbc719a0, 24 [pid 9601] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9675] <... set_robust_list resumed>) = 0 [pid 9675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9675] memfd_create("syzkaller", 0) = 4 [pid 9675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9670] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9672] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9675] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9674] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9670] <... write resumed>) = 16777216 [pid 9670] munmap(0x7ff7d3800000, 138412032 [pid 9672] <... write resumed>) = 16777216 [pid 9675] <... write resumed>) = 16777216 [pid 9673] <... write resumed>) = 16777216 [pid 9670] <... munmap resumed>) = 0 [pid 9672] munmap(0x7ff7d3800000, 138412032 [pid 9670] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9673] munmap(0x7ff7d3800000, 138412032 [pid 9670] <... openat resumed>) = 4 [pid 9675] munmap(0x7ff7d3800000, 138412032 [pid 9670] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9602] <... write resumed>) = 16776704 [pid 9602] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9602] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9672] <... munmap resumed>) = 0 [pid 9675] <... munmap resumed>) = 0 [pid 9674] <... write resumed>) = 16777216 [pid 9673] <... munmap resumed>) = 0 [pid 9670] close(3 [pid 9675] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9674] munmap(0x7ff7d3800000, 138412032 [pid 9673] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9672] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9670] <... close resumed>) = 0 [pid 9673] <... openat resumed>) = 4 [pid 9670] close(4 [pid 9675] <... openat resumed>) = 5 [pid 9673] ioctl(4, LOOP_SET_FD, 3 [pid 9672] <... openat resumed>) = 4 [pid 9670] <... close resumed>) = 0 [pid 9675] ioctl(5, LOOP_SET_FD, 4 [pid 9674] <... munmap resumed>) = 0 [pid 9672] ioctl(4, LOOP_SET_FD, 3 [pid 9670] mkdir("./file1", 0777 [pid 9675] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9674] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9675] ioctl(5, LOOP_CLR_FD [pid 9673] <... ioctl resumed>) = 0 [pid 9672] <... ioctl resumed>) = 0 [pid 9670] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9674] <... openat resumed>) = 4 [pid 9675] <... ioctl resumed>) = 0 [pid 9674] ioctl(4, LOOP_SET_FD, 3 [pid 9672] close(3 [ 357.148532][ T9670] loop1: detected capacity change from 0 to 32768 [ 357.178285][ T9673] loop0: detected capacity change from 0 to 32768 [ 357.189122][ T9672] loop4: detected capacity change from 0 to 32768 [pid 9670] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9672] <... close resumed>) = 0 [pid 9672] close(4) = 0 [pid 9675] ioctl(5, LOOP_SET_FD, 4 [pid 9672] mkdir("./file1", 0777 [pid 9675] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9672] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9675] close(5 [pid 9672] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9675] <... close resumed>) = 0 [pid 9675] close(4 [pid 9673] close(3 [pid 9674] <... ioctl resumed>) = 0 [pid 9673] <... close resumed>) = 0 [pid 9674] close(3 [pid 9673] close(4 [pid 9674] <... close resumed>) = 0 [pid 9673] <... close resumed>) = 0 [pid 9674] close(4 [pid 9673] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9673] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9674] <... close resumed>) = 0 [pid 9674] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 357.202336][ T9674] loop3: detected capacity change from 0 to 32768 [pid 9674] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9675] <... close resumed>) = 0 [pid 9675] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9601] <... futex resumed>) = 0 [pid 9601] exit_group(0 [pid 9675] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9602] <... futex resumed>) = ? [pid 9601] <... exit_group resumed>) = ? [pid 9675] <... futex resumed>) = ? [pid 9602] +++ exited with 0 +++ [ 357.383782][ T9670] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 357.402719][ T9670] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 357.411236][ T9674] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 357.435016][ T9672] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 357.444992][ T9672] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 357.453719][ T9673] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 357.463230][ T9673] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 357.472057][ T9674] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9670] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9670] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9670] ioctl(3, LOOP_CLR_FD) = 0 [ 357.581483][ T9670] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9670] close(3 [pid 9675] +++ exited with 0 +++ [pid 9601] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9601, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=96 /* 0.96 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9704 ./strace-static-x86_64: Process 9704 attached [pid 9704] set_robust_list(0x5555693e0760, 24) = 0 [pid 9673] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9673] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9704] <... prctl resumed>) = 0 [pid 9673] <... openat resumed>) = 3 [pid 9704] setpgid(0, 0 [pid 9673] ioctl(3, LOOP_CLR_FD [pid 9704] <... setpgid resumed>) = 0 [pid 9673] <... ioctl resumed>) = 0 [pid 9704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9673] close(3 [pid 9704] <... openat resumed>) = 3 executing program [pid 9704] write(3, "1000", 4) = 4 [pid 9704] close(3) = 0 [pid 9704] write(1, "executing program\n", 18) = 18 [pid 9704] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9704] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9704] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [ 357.653775][ T9673] bcachefs: bch2_fs_get_tree() error: EINVAL [ 357.673116][ T9672] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9704] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9672] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9704] <... mprotect resumed>) = 0 [pid 9704] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9672] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9704] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9672] <... openat resumed>) = 3 [pid 9704] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9672] ioctl(3, LOOP_CLR_FD) = 0 [pid 9672] close(3./strace-static-x86_64: Process 9705 attached [pid 9704] <... clone3 resumed> => {parent_tid=[9705]}, 88) = 9705 [pid 9704] rt_sigprocmask(SIG_SETMASK, [], [pid 9674] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9705] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9704] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9705] <... rseq resumed>) = 0 [pid 9704] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9705] set_robust_list(0x7ff7dbc929a0, 24 [pid 9704] <... futex resumed>) = 0 [pid 9705] <... set_robust_list resumed>) = 0 [pid 9704] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9705] rt_sigprocmask(SIG_SETMASK, [], [pid 9674] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9705] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9674] <... openat resumed>) = 3 [pid 9705] memfd_create("syzkaller", 0 [pid 9674] ioctl(3, LOOP_CLR_FD [pid 9705] <... memfd_create resumed>) = 3 [ 357.710452][ T9674] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9674] <... ioctl resumed>) = 0 [pid 9674] close(3 [pid 9670] <... close resumed>) = 0 [pid 9670] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9667] <... futex resumed>) = 0 [pid 9670] creat("./bus", 000 [pid 9667] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9667] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9667] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9667] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9667] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9667] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9706 attached => {parent_tid=[9706]}, 88) = 9706 [pid 9706] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9667] rt_sigprocmask(SIG_SETMASK, [], [pid 9706] <... rseq resumed>) = 0 [pid 9667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9706] set_robust_list(0x7ff7dbc719a0, 24 [pid 9667] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9667] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9706] <... set_robust_list resumed>) = 0 [pid 9706] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9706] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9706] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9667] <... futex resumed>) = 0 [pid 9706] memfd_create("syzkaller", 0 [pid 9667] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9667] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9706] <... memfd_create resumed>) = 4 [pid 9706] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9673] <... close resumed>) = 0 [pid 9673] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9672] <... close resumed>) = 0 [pid 9673] <... futex resumed>) = 1 [pid 9668] <... futex resumed>) = 0 [pid 9668] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9668] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9673] creat("./bus", 000 [pid 9672] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9669] <... futex resumed>) = 0 [pid 9669] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9669] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9672] creat("./bus", 000 [pid 9674] <... close resumed>) = 0 [pid 9674] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9671] <... futex resumed>) = 0 [pid 9668] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9674] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9671] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9674] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9674] creat("./bus", 000 [pid 9671] <... futex resumed>) = 0 [pid 9671] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9668] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9668] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9669] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9668] <... mprotect resumed>) = 0 [pid 9669] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9668] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9669] <... futex resumed>) = 0 [pid 9668] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9668] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9707 attached [pid 9669] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9707] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9669] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9668] <... clone3 resumed> => {parent_tid=[9707]}, 88) = 9707 [pid 9669] <... mprotect resumed>) = 0 [pid 9668] rt_sigprocmask(SIG_SETMASK, [], [pid 9669] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9668] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9669] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9668] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 9668] <... futex resumed>) = 0 [pid 9668] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9669] <... clone3 resumed> => {parent_tid=[9708]}, 88) = 9708 [pid 9707] <... rseq resumed>) = 0 [pid 9669] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9708 attached [pid 9707] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9669] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9707] rt_sigprocmask(SIG_SETMASK, [], [pid 9669] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9708] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9707] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9669] <... futex resumed>) = 0 [pid 9708] <... rseq resumed>) = 0 [pid 9708] set_robust_list(0x7ff7dbc719a0, 24 [pid 9707] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9669] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9707] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9707] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9668] <... futex resumed>) = 0 [pid 9668] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9668] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9708] <... set_robust_list resumed>) = 0 [pid 9708] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9708] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9707] memfd_create("syzkaller", 0 [pid 9708] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9708] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9707] <... memfd_create resumed>) = 4 [pid 9707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9708] <... futex resumed>) = 1 [pid 9671] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9669] <... futex resumed>) = 0 [pid 9708] memfd_create("syzkaller", 0 [pid 9671] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9669] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9708] <... memfd_create resumed>) = 4 [pid 9669] <... futex resumed>) = 0 [pid 9671] <... futex resumed>) = 0 [pid 9671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9669] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9671] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9708] <... mmap resumed>) = 0x7ff7d3800000 [pid 9671] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9671] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9671] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 9705] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 9709 attached [pid 9671] <... clone3 resumed> => {parent_tid=[9709]}, 88) = 9709 [pid 9671] rt_sigprocmask(SIG_SETMASK, [], [pid 9709] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9673] <... creat resumed>) = 3 [pid 9672] <... creat resumed>) = 3 [pid 9671] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9670] <... creat resumed>) = 3 [pid 9674] <... creat resumed>) = 3 [pid 9709] <... rseq resumed>) = 0 [pid 9674] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9671] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9670] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9709] set_robust_list(0x7ff7dbc719a0, 24 [pid 9674] <... futex resumed>) = 0 [pid 9671] <... futex resumed>) = 0 [pid 9670] <... futex resumed>) = 0 [pid 9709] <... set_robust_list resumed>) = 0 [pid 9674] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9673] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9671] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9670] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9709] rt_sigprocmask(SIG_SETMASK, [], [pid 9673] <... futex resumed>) = 0 [pid 9709] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9673] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9709] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9672] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9672] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9671] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9671] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9674] <... futex resumed>) = 0 [pid 9671] <... futex resumed>) = 1 [pid 9671] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9674] memfd_create("syzkaller", 0) = 4 [pid 9674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9707] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9706] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9708] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9705] <... write resumed>) = 16777216 [pid 9705] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9705] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9705] ioctl(4, LOOP_SET_FD, 3 [pid 9674] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9705] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9705] ioctl(4, LOOP_CLR_FD) = 0 [pid 9705] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9705] close(4) = 0 [pid 9705] close(3 [pid 9706] <... write resumed>) = 16777216 [pid 9706] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9707] <... write resumed>) = 16777216 [pid 9706] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9707] munmap(0x7ff7d3800000, 138412032 [pid 9706] <... openat resumed>) = 5 [pid 9706] ioctl(5, LOOP_SET_FD, 4 [pid 9707] <... munmap resumed>) = 0 [pid 9706] <... ioctl resumed>) = 0 [pid 9707] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9706] close(4 [pid 9707] <... openat resumed>) = 5 [pid 9706] <... close resumed>) = 0 [pid 9707] ioctl(5, LOOP_SET_FD, 4 [pid 9706] close(5) = 0 [pid 9706] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 359.001039][ T9706] loop1: detected capacity change from 0 to 32768 [ 359.035154][ T9707] loop0: detected capacity change from 0 to 32768 [pid 9706] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9707] <... ioctl resumed>) = 0 [pid 9707] close(4) = 0 [pid 9707] close(5) = 0 [pid 9707] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9707] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9705] <... close resumed>) = 0 [pid 9705] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9705] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9704] <... futex resumed>) = 0 [pid 9704] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9705] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9704] <... futex resumed>) = 0 [pid 9705] creat("./bus", 000 [pid 9704] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9708] <... write resumed>) = 16777216 [ 359.062291][ T9706] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9706) [ 359.101000][ T9707] BTRFS: device /dev/loop0 (7:0) using temp-fsid ec03afdc-596a-4d99-9c4e-4eafc0cde25f [pid 9708] munmap(0x7ff7d3800000, 138412032 [pid 9704] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9708] <... munmap resumed>) = 0 [pid 9704] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9704] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9708] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9704] <... mprotect resumed>) = 0 [pid 9704] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9704] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9712]}, 88) = 9712 [pid 9704] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9712 attached [pid 9708] <... openat resumed>) = 5 [pid 9704] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 359.112595][ T9706] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 359.133033][ T9707] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9707) [ 359.148495][ T9706] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 9712] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9708] ioctl(5, LOOP_SET_FD, 4 [pid 9704] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9704] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9712] <... rseq resumed>) = 0 [pid 9708] <... ioctl resumed>) = 0 [pid 9712] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9708] close(4 [pid 9712] rt_sigprocmask(SIG_SETMASK, [], [pid 9708] <... close resumed>) = 0 [pid 9712] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9708] close(5 [pid 9712] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9708] <... close resumed>) = 0 [pid 9712] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9708] mkdir("./bus", 0777 [pid 9712] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9708] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9712] <... futex resumed>) = 1 [pid 9704] <... futex resumed>) = 0 [pid 9712] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9708] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9704] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9712] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9712] memfd_create("syzkaller", 0 [pid 9704] <... futex resumed>) = 0 [pid 9712] <... memfd_create resumed>) = 4 [pid 9704] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9712] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 359.169702][ T9708] loop4: detected capacity change from 0 to 32768 [pid 9674] <... write resumed>) = 16777216 [ 359.226770][ T9707] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 359.238834][ T9708] BTRFS: device /dev/loop4 (7:4) using temp-fsid 66e6a3a5-8c2c-4bb1-b706-2f557c883537 [ 359.258010][ T9707] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 9674] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9674] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 359.294164][ T9708] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9708) [pid 9674] ioctl(5, LOOP_SET_FD, 4 [pid 9709] <... write resumed>) = 16776704 [pid 9709] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9709] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9674] <... ioctl resumed>) = 0 [pid 9674] close(4) = 0 [pid 9674] close(5) = 0 [pid 9674] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 359.342868][ T9674] loop3: detected capacity change from 0 to 32768 [ 359.395160][ T9708] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 359.422245][ T9674] BTRFS: device /dev/loop3 (7:3) using temp-fsid 6379e2a5-afd4-4471-8310-020bad39480b [ 359.432195][ T9706] BTRFS info (device loop1): rebuilding free space tree [ 359.482829][ T9708] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 359.510405][ T9674] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9674) [ 359.527926][ T9707] BTRFS info (device loop0): rebuilding free space tree [ 359.539585][ T9706] BTRFS info (device loop1): disabling free space tree [ 359.546548][ T9706] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 359.592358][ T9707] BTRFS info (device loop0): disabling free space tree [ 359.601400][ T9706] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 359.603504][ T9707] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 359.623086][ T9674] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 359.635118][ T9674] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 359.647574][ T9707] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9674] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 359.827845][ T9708] BTRFS info (device loop4): rebuilding free space tree [ 359.882879][ T9708] BTRFS info (device loop4): disabling free space tree [ 359.914164][ T9674] BTRFS info (device loop3): rebuilding free space tree [pid 9712] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 359.927996][ T9708] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9705] <... creat resumed>) = 3 [pid 9705] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 359.968426][ T9706] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 359.979293][ T9707] BTRFS info (device loop0): last unmount of filesystem ec03afdc-596a-4d99-9c4e-4eafc0cde25f [ 359.984776][ T9674] BTRFS info (device loop3): disabling free space tree [ 359.990614][ T9708] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 360.006915][ T9674] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9705] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9707] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9707] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9707] ioctl(4, LOOP_CLR_FD) = 0 [pid 9707] close(4 [pid 9712] <... write resumed>) = 16777216 [pid 9712] munmap(0x7ff7d3800000, 138412032 [pid 9706] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9706] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 360.045298][ T9674] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9706] ioctl(4, LOOP_CLR_FD) = 0 [pid 9706] close(4 [pid 9712] <... munmap resumed>) = 0 [pid 9712] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9712] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9712] ioctl(5, LOOP_CLR_FD) = 0 [ 360.116407][ T9674] BTRFS info (device loop3): last unmount of filesystem 6379e2a5-afd4-4471-8310-020bad39480b [ 360.127825][ T9708] BTRFS info (device loop4): last unmount of filesystem 66e6a3a5-8c2c-4bb1-b706-2f557c883537 [pid 9712] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9712] close(5) = 0 [pid 9712] close(4 [pid 9708] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9674] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9708] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9674] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9708] <... openat resumed>) = 4 [pid 9674] <... openat resumed>) = 4 [pid 9708] ioctl(4, LOOP_CLR_FD) = 0 [pid 9708] close(4 [pid 9674] ioctl(4, LOOP_CLR_FD) = 0 [pid 9674] close(4 [pid 9706] <... close resumed>) = 0 [pid 9706] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9667] <... futex resumed>) = 0 [pid 9706] <... futex resumed>) = 1 [pid 9667] exit_group(0 [pid 9706] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 9670] <... futex resumed>) = ? [pid 9667] <... exit_group resumed>) = ? [pid 9706] +++ exited with 0 +++ [pid 9670] +++ exited with 0 +++ [pid 9707] <... close resumed>) = 0 [pid 9667] +++ exited with 0 +++ [pid 9707] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9667, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=104 /* 1.04 s */} --- [pid 9707] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9668] <... futex resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 9668] exit_group(0 [pid 9707] <... futex resumed>) = ? [pid 9673] <... futex resumed>) = ? [pid 9668] <... exit_group resumed>) = ? [pid 5844] <... restart_syscall resumed>) = 0 [pid 9707] +++ exited with 0 +++ [pid 9673] +++ exited with 0 +++ [pid 9668] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9668, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=89 /* 0.89 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 5844] <... openat resumed>) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] <... restart_syscall resumed>) = 0 [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 9775 attached ) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 9775] set_robust_list(0x5555693e0760, 24 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 9775 [pid 9775] <... set_robust_list resumed>) = 0 [pid 9775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9775] setpgid(0, 0) = 0 [pid 9775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9775] write(3, "1000", 4) = 4 [pid 9775] close(3executing program ) = 0 [pid 9775] write(1, "executing program\n", 18) = 18 [pid 9775] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9775] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9775] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9775] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9775] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9775] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] close(3 [pid 9775] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9775] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5843] <... close resumed>) = 0 [pid 9712] <... close resumed>) = 0 ./strace-static-x86_64: Process 9776 attached [pid 9776] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9775] <... clone3 resumed> => {parent_tid=[9776]}, 88) = 9776 [pid 9776] <... rseq resumed>) = 0 [pid 9775] rt_sigprocmask(SIG_SETMASK, [], [pid 9776] set_robust_list(0x7ff7dbc929a0, 24 [pid 9775] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9776] <... set_robust_list resumed>) = 0 [pid 9775] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9776] rt_sigprocmask(SIG_SETMASK, [], [pid 9775] <... futex resumed>) = 0 [pid 9776] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9775] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9776] memfd_create("syzkaller", 0) = 3 [pid 9776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9776] <... mmap resumed>) = 0x7ff7d3800000 ./strace-static-x86_64: Process 9777 attached [pid 9712] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9777] set_robust_list(0x5555693e0760, 24 [pid 9712] <... futex resumed>) = 1 [pid 9704] <... futex resumed>) = 0 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 9777 [pid 9777] <... set_robust_list resumed>) = 0 [pid 9712] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9704] exit_group(0 [pid 9712] <... futex resumed>) = ? [pid 9705] <... futex resumed>) = ? [pid 9704] <... exit_group resumed>) = ? [pid 9777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9708] <... close resumed>) = 0 [pid 9705] +++ exited with 0 +++ [pid 9777] <... prctl resumed>) = 0 [pid 9708] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9669] <... futex resumed>) = 0 [pid 9669] exit_group(0 [pid 9672] <... futex resumed>) = ? [pid 9669] <... exit_group resumed>) = ? [pid 9777] setpgid(0, 0 [pid 9672] +++ exited with 0 +++ [pid 9708] <... futex resumed>) = ? [pid 9708] +++ exited with 0 +++ [pid 9669] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9669, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=87 /* 0.87 s */} --- [pid 9712] +++ exited with 0 +++ [pid 9704] +++ exited with 0 +++ [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9777] <... setpgid resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9704, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=78 /* 0.78 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5850] <... openat resumed>) = 3 [pid 9777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5850] ioctl(3, LOOP_CLR_FD [pid 9777] <... openat resumed>) = 3 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9777] write(3, "1000", 4 [pid 5850] close(3 [pid 9777] <... write resumed>) = 4 [pid 5850] <... close resumed>) = 0 [pid 9777] close(3 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5845] <... restart_syscall resumed>) = 0 [pid 9777] <... close resumed>) = 0 [pid 9777] write(1, "executing program\n", 18 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 9778 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9777] <... write resumed>) = 18 [pid 5845] <... openat resumed>) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 9778 attached ) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9779 attached [pid 9777] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9779] set_robust_list(0x5555693e0760, 24) = 0 [pid 9778] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 9779 [pid 9779] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9778] <... set_robust_list resumed>) = 0 [pid 9779] <... prctl resumed>) = 0 [pid 9778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9779] setpgid(0, 0 [pid 9778] <... prctl resumed>) = 0 [pid 9779] <... setpgid resumed>) = 0 [pid 9778] setpgid(0, 0 [pid 9779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9778] <... setpgid resumed>) = 0 [pid 9778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9777] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9779] <... openat resumed>) = 3 [pid 9778] <... openat resumed>) = 3 [pid 9777] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9777] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9779] write(3, "1000", 4 [pid 9777] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9779] <... write resumed>) = 4 [pid 9778] write(3, "1000", 4 [pid 9777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9779] close(3 [pid 9778] <... write resumed>) = 4 [pid 9777] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9779] <... close resumed>) = 0 [pid 9778] close(3 [pid 9674] <... close resumed>) = 0 [pid 9779] write(1, "executing program\n", 18executing program executing program [pid 9778] <... close resumed>) = 0 [pid 9779] <... write resumed>) = 18 [pid 9778] write(1, "executing program\n", 18 [pid 9779] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9778] <... write resumed>) = 18 [pid 9779] <... futex resumed>) = 0 [pid 9778] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9779] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9778] <... futex resumed>) = 0 [pid 9779] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9778] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9777] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9778] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9778] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9779] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9778] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9779] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9778] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9779] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9778] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9779] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9778] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9779] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9778] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9777] <... mprotect resumed>) = 0 [pid 9674] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9779] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9780 attached [pid 9779] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9781 attached [pid 9778] <... clone3 resumed> => {parent_tid=[9780]}, 88) = 9780 [pid 9777] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9674] <... futex resumed>) = 1 [pid 9671] <... futex resumed>) = 0 [pid 9781] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9780] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9779] <... clone3 resumed> => {parent_tid=[9781]}, 88) = 9781 [pid 9778] rt_sigprocmask(SIG_SETMASK, [], [pid 9777] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9674] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9671] exit_group(0 [pid 9781] <... rseq resumed>) = 0 [pid 9780] <... rseq resumed>) = 0 [pid 9779] rt_sigprocmask(SIG_SETMASK, [], [pid 9778] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9777] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9709] <... futex resumed>) = ? [pid 9674] <... futex resumed>) = ? [pid 9671] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 9782 attached [pid 9781] set_robust_list(0x7ff7dbc929a0, 24 [pid 9780] set_robust_list(0x7ff7dbc929a0, 24 [pid 9779] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9778] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9709] +++ exited with 0 +++ [pid 9782] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9781] <... set_robust_list resumed>) = 0 [pid 9777] <... clone3 resumed> => {parent_tid=[9782]}, 88) = 9782 [pid 9782] <... rseq resumed>) = 0 [pid 9781] rt_sigprocmask(SIG_SETMASK, [], [pid 9780] <... set_robust_list resumed>) = 0 [pid 9779] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9778] <... futex resumed>) = 0 [pid 9777] rt_sigprocmask(SIG_SETMASK, [], [pid 9782] set_robust_list(0x7ff7dbc929a0, 24 [pid 9781] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9780] rt_sigprocmask(SIG_SETMASK, [], [pid 9782] <... set_robust_list resumed>) = 0 [pid 9781] memfd_create("syzkaller", 0 [pid 9782] rt_sigprocmask(SIG_SETMASK, [], [pid 9781] <... memfd_create resumed>) = 3 [pid 9780] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9782] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9780] memfd_create("syzkaller", 0 [pid 9782] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9780] <... memfd_create resumed>) = 3 [pid 9780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9779] <... futex resumed>) = 0 [pid 9778] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9779] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9781] <... mmap resumed>) = 0x7ff7d3800000 [pid 9777] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9777] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9782] <... futex resumed>) = 0 [pid 9777] <... futex resumed>) = 1 [pid 9782] memfd_create("syzkaller", 0 [pid 9777] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9782] <... memfd_create resumed>) = 3 [pid 9782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9674] +++ exited with 0 +++ [pid 9671] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9671, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=123 /* 1.23 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9783 attached [pid 9783] set_robust_list(0x5555693e0760, 24 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 9783 [pid 9783] <... set_robust_list resumed>) = 0 [pid 9783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9783] setpgid(0, 0) = 0 [pid 9783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9783] write(3, "1000", 4) = 4 [pid 9783] close(3) = 0 [pid 9783] write(1, "executing program\n", 18executing program ) = 18 [pid 9783] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9783] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9783] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9783] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9783] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9783] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9783] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9784 attached [pid 9784] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9783] <... clone3 resumed> => {parent_tid=[9784]}, 88) = 9784 [pid 9783] rt_sigprocmask(SIG_SETMASK, [], [pid 9784] <... rseq resumed>) = 0 [pid 9783] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9784] set_robust_list(0x7ff7dbc929a0, 24 [pid 9783] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9784] <... set_robust_list resumed>) = 0 [pid 9784] rt_sigprocmask(SIG_SETMASK, [], [pid 9783] <... futex resumed>) = 0 [pid 9784] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9783] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9784] memfd_create("syzkaller", 0) = 3 [pid 9784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9776] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9781] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9782] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9780] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9784] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9776] <... write resumed>) = 16777216 [pid 9776] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9776] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9776] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9776] close(3) = 0 [pid 9776] close(4) = 0 [pid 9776] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 361.409348][ T9776] loop1: detected capacity change from 0 to 32768 [pid 9776] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9781] <... write resumed>) = 16777216 [pid 9781] munmap(0x7ff7d3800000, 138412032 [pid 9782] <... write resumed>) = 16777216 [pid 9781] <... munmap resumed>) = 0 [pid 9782] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9781] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9780] <... write resumed>) = 16777216 [pid 9782] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9781] <... openat resumed>) = 4 [pid 9781] ioctl(4, LOOP_SET_FD, 3 [pid 9782] <... openat resumed>) = 4 [pid 9781] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9782] ioctl(4, LOOP_SET_FD, 3 [pid 9781] ioctl(4, LOOP_CLR_FD) = 0 [pid 9780] munmap(0x7ff7d3800000, 138412032 [pid 9781] ioctl(4, LOOP_SET_FD, 3 [pid 9782] <... ioctl resumed>) = 0 [pid 9781] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9780] <... munmap resumed>) = 0 [pid 9782] close(3 [pid 9781] close(4 [pid 9782] <... close resumed>) = 0 [pid 9781] <... close resumed>) = 0 [pid 9781] close(3 [pid 9782] close(4) = 0 [pid 9782] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 9782] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9780] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 361.553486][ T9776] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 361.564268][ T9782] loop0: detected capacity change from 0 to 32768 [ 361.573399][ T9776] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9780] ioctl(4, LOOP_SET_FD, 3 [pid 9784] <... write resumed>) = 16777216 [pid 9784] munmap(0x7ff7d3800000, 138412032 [pid 9780] <... ioctl resumed>) = 0 [pid 9780] close(3) = 0 [pid 9780] close(4) = 0 [pid 9784] <... munmap resumed>) = 0 [pid 9780] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 361.618164][ T9780] loop4: detected capacity change from 0 to 32768 [pid 9780] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9784] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 9784] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9784] close(3) = 0 [pid 9784] close(4) = 0 [pid 9784] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 361.697068][ T9784] loop3: detected capacity change from 0 to 32768 [ 361.702275][ T9782] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 361.736325][ T9782] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9784] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9781] <... close resumed>) = 0 [pid 9781] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9776] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9781] <... futex resumed>) = 1 [pid 9779] <... futex resumed>) = 0 [pid 9781] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9779] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9776] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9781] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9779] <... futex resumed>) = 0 [pid 9781] creat("./bus", 000 [pid 9776] <... openat resumed>) = 3 [pid 9779] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9781] <... creat resumed>) = 3 [pid 9776] ioctl(3, LOOP_CLR_FD [pid 9781] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9779] <... futex resumed>) = 0 [pid 9776] <... ioctl resumed>) = 0 [pid 9781] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9779] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [ 361.809628][ T9776] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9776] close(3 [pid 9781] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9779] <... futex resumed>) = 0 [pid 9779] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 361.851545][ T9780] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9781] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9779] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9779] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9779] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9779] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9779] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9813 attached => {parent_tid=[9813]}, 88) = 9813 [pid 9779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 361.913587][ T9780] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9779] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9779] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9813] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9813] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9813] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9813] memfd_create("syzkaller", 0) = 4 [pid 9813] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 361.959098][ T9784] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9776] <... close resumed>) = 0 [pid 9776] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9775] <... futex resumed>) = 0 [pid 9776] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9775] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9775] <... futex resumed>) = 0 [pid 9776] creat("./bus", 000 [pid 9775] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9782] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 9775] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9782] ioctl(3, LOOP_CLR_FD [pid 9775] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9782] <... ioctl resumed>) = 0 [ 362.030858][ T9784] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 362.061347][ T9782] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9775] <... futex resumed>) = 0 [pid 9782] close(3 [pid 9775] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9775] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9775] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9775] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9814 attached [pid 9814] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9775] <... clone3 resumed> => {parent_tid=[9814]}, 88) = 9814 [pid 9814] set_robust_list(0x7ff7dbc719a0, 24 [pid 9775] rt_sigprocmask(SIG_SETMASK, [], [pid 9814] <... set_robust_list resumed>) = 0 [pid 9775] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9814] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9814] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9784] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9775] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9814] <... futex resumed>) = 0 [pid 9784] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9775] <... futex resumed>) = 1 [pid 9814] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9784] <... openat resumed>) = 3 [pid 9775] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9814] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9784] ioctl(3, LOOP_CLR_FD [pid 9814] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9784] <... ioctl resumed>) = 0 [pid 9814] <... futex resumed>) = 1 [pid 9784] close(3 [pid 9775] <... futex resumed>) = 0 [ 362.157691][ T9784] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9814] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 9775] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9814] memfd_create("syzkaller", 0 [pid 9775] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9814] <... memfd_create resumed>) = 4 [pid 9814] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9780] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9780] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 9780] ioctl(3, LOOP_CLR_FD) = 0 [ 362.243750][ T9780] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9780] close(3 [pid 9782] <... close resumed>) = 0 [pid 9782] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9777] <... futex resumed>) = 0 [pid 9782] creat("./bus", 000 [pid 9777] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9777] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9780] <... close resumed>) = 0 [pid 9780] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9778] <... futex resumed>) = 0 [pid 9780] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9778] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9780] <... futex resumed>) = 0 [pid 9778] <... futex resumed>) = 1 [pid 9780] creat("./bus", 000 [pid 9778] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9777] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9777] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9777] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9777] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9777] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9815]}, 88) = 9815 ./strace-static-x86_64: Process 9815 attached [pid 9777] rt_sigprocmask(SIG_SETMASK, [], [pid 9815] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9777] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9815] <... rseq resumed>) = 0 [pid 9777] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9815] set_robust_list(0x7ff7dbc719a0, 24 [pid 9777] <... futex resumed>) = 0 [pid 9815] <... set_robust_list resumed>) = 0 [pid 9777] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9815] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9815] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9777] <... futex resumed>) = 0 [pid 9815] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9777] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9815] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9777] <... futex resumed>) = 0 [pid 9815] memfd_create("syzkaller", 0 [pid 9777] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9815] <... memfd_create resumed>) = 4 [pid 9815] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9784] <... close resumed>) = 0 [pid 9784] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9783] <... futex resumed>) = 0 [pid 9784] creat("./bus", 000 [pid 9783] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9778] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9783] <... futex resumed>) = 0 [pid 9778] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9783] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9778] <... futex resumed>) = 0 [pid 9778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9778] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9778] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9816]}, 88) = 9816 ./strace-static-x86_64: Process 9816 attached [pid 9816] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9778] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9816] <... rseq resumed>) = 0 [pid 9813] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9778] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9816] set_robust_list(0x7ff7dbc719a0, 24 [pid 9778] <... futex resumed>) = 0 [pid 9816] <... set_robust_list resumed>) = 0 [pid 9778] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9816] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9783] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9783] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9783] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9783] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9783] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9783] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9817]}, 88) = 9817 ./strace-static-x86_64: Process 9817 attached [pid 9783] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9783] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9783] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9817] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9816] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9816] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9817] set_robust_list(0x7ff7dbc719a0, 24 [pid 9778] <... futex resumed>) = 0 [pid 9816] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9817] <... set_robust_list resumed>) = 0 [pid 9778] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9816] <... futex resumed>) = 0 [pid 9817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9816] memfd_create("syzkaller", 0 [pid 9817] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9817] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9816] <... memfd_create resumed>) = 4 [pid 9783] <... futex resumed>) = 0 [pid 9778] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9817] memfd_create("syzkaller", 0 [pid 9783] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9817] <... memfd_create resumed>) = 4 [pid 9783] <... futex resumed>) = 0 [pid 9783] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9816] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9817] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9816] <... mmap resumed>) = 0x7ff7d3800000 [pid 9817] <... mmap resumed>) = 0x7ff7d3800000 [pid 9814] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9781] <... write resumed>) = 16776704 [pid 9781] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9781] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9815] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9816] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9813] <... write resumed>) = 16777216 [pid 9813] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9813] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9813] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9813] ioctl(5, LOOP_CLR_FD) = 0 [pid 9813] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9813] close(5) = 0 [pid 9814] <... write resumed>) = 16777216 [pid 9813] close(4 [pid 9814] munmap(0x7ff7d3800000, 138412032 [pid 9817] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9814] <... munmap resumed>) = 0 [pid 9814] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 9814] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9814] close(4) = 0 [pid 9814] close(5) = 0 [ 363.181919][ T9814] loop1: detected capacity change from 0 to 32768 [pid 9814] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 9814] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9776] <... creat resumed>) = 3 [pid 9782] <... creat resumed>) = 3 [pid 9784] <... creat resumed>) = 3 [pid 9780] <... creat resumed>) = 3 [pid 9776] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9784] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9780] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9784] <... futex resumed>) = 0 [pid 9780] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9784] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9782] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9776] <... futex resumed>) = 0 [pid 9782] <... futex resumed>) = 0 [pid 9776] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 363.251168][ T9814] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9814) [ 363.309893][ T9814] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 363.341570][ T9814] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 9782] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9813] <... close resumed>) = 0 [pid 9813] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9779] <... futex resumed>) = 0 [pid 9813] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9779] exit_group(0 [pid 9813] <... futex resumed>) = ? [pid 9781] <... futex resumed>) = ? [pid 9779] <... exit_group resumed>) = ? [pid 9781] +++ exited with 0 +++ [pid 9816] <... write resumed>) = 16777216 [pid 9816] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9816] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 9816] ioctl(5, LOOP_SET_FD, 4 [pid 9815] <... write resumed>) = 16777216 [pid 9816] <... ioctl resumed>) = 0 [pid 9813] +++ exited with 0 +++ [pid 9779] +++ exited with 0 +++ [pid 9816] close(4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9779, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=105 /* 1.05 s */} --- [pid 9816] <... close resumed>) = 0 [pid 9816] close(5 [pid 9815] munmap(0x7ff7d3800000, 138412032 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9816] <... close resumed>) = 0 [pid 5845] <... openat resumed>) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 9816] mkdir("./bus", 0777 [pid 5845] <... ioctl resumed>) = 0 [pid 9816] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5845] close(3 [pid 9816] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 5845] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9834 [ 363.487718][ T9816] loop4: detected capacity change from 0 to 32768 [ 363.518944][ T9816] BTRFS: device /dev/loop4 (7:4) using temp-fsid 6e0891a7-544a-47c5-b75f-2845fc7f8626 [ 363.519633][ T9814] BTRFS info (device loop1): rebuilding free space tree ./strace-static-x86_64: Process 9834 attached [pid 9834] set_robust_list(0x5555693e0760, 24 [pid 9815] <... munmap resumed>) = 0 [pid 9834] <... set_robust_list resumed>) = 0 [pid 9834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9815] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9834] setpgid(0, 0 [pid 9815] <... openat resumed>) = 5 [pid 9815] ioctl(5, LOOP_SET_FD, 4 [pid 9834] <... setpgid resumed>) = 0 [pid 9834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9815] <... ioctl resumed>) = 0 [pid 9834] <... openat resumed>) = 3 [pid 9834] write(3, "1000", 4) = 4 [pid 9834] close(3) = 0 executing program [pid 9834] write(1, "executing program\n", 18) = 18 [pid 9834] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9834] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9834] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9834] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9834] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9834] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9834] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9835]}, 88) = 9835 [pid 9834] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 9835 attached NULL, 8) = 0 [pid 9834] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9835] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9834] <... futex resumed>) = 0 [pid 9835] <... rseq resumed>) = 0 [pid 9834] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9835] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9835] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9835] memfd_create("syzkaller", 0) = 3 [pid 9835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9815] close(4) = 0 [pid 9815] close(5) = 0 [pid 9815] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 363.543546][ T9816] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9816) [ 363.569711][ T9815] loop0: detected capacity change from 0 to 32768 [ 363.579867][ T9816] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 363.623045][ T9816] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 363.632246][ T9814] BTRFS info (device loop1): disabling free space tree [ 363.643510][ T9815] BTRFS: device /dev/loop0 (7:0) using temp-fsid 5ed8ff21-7dce-41ca-b57d-a50b1f63fb59 [pid 9815] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9817] <... write resumed>) = 16777216 [ 363.665158][ T9814] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 363.677359][ T9815] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9815) [ 363.693169][ T9814] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9817] munmap(0x7ff7d3800000, 138412032) = 0 [ 363.723589][ T9815] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 9817] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 363.779341][ T9814] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 363.797105][ T9817] loop3: detected capacity change from 0 to 32768 [ 363.806006][ T9815] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 363.819178][ T9816] BTRFS info (device loop4): rebuilding free space tree [pid 9817] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9817] close(4) = 0 [pid 9817] close(5) = 0 [pid 9817] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 363.843623][ T9817] BTRFS: device /dev/loop3 (7:3) using temp-fsid c6edb69c-26dc-4ab7-9a65-ef0beb5a577e [ 363.909245][ T9816] BTRFS info (device loop4): disabling free space tree [ 363.919274][ T9816] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 363.919867][ T9817] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9817) [ 363.942592][ T9816] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 363.958957][ T9817] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 363.992284][ T9817] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 364.013615][ T9816] BTRFS info (device loop4): last unmount of filesystem 6e0891a7-544a-47c5-b75f-2845fc7f8626 [ 364.042342][ T9815] BTRFS info (device loop0): rebuilding free space tree [pid 9817] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9814] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9814] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9814] ioctl(4, LOOP_CLR_FD) = 0 [pid 9814] close(4 [pid 9816] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 364.058980][ T9815] BTRFS info (device loop0): disabling free space tree [ 364.071931][ T9815] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9816] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9816] ioctl(4, LOOP_CLR_FD) = 0 [ 364.154911][ T9815] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 364.169076][ T9817] BTRFS info (device loop3): rebuilding free space tree [ 364.213990][ T9817] BTRFS info (device loop3): disabling free space tree [ 364.261955][ T9817] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 364.279330][ T9815] BTRFS info (device loop0): last unmount of filesystem 5ed8ff21-7dce-41ca-b57d-a50b1f63fb59 [pid 9816] close(4 [ 364.333198][ T9817] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9815] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 364.408626][ T9817] BTRFS info (device loop3): last unmount of filesystem c6edb69c-26dc-4ab7-9a65-ef0beb5a577e [pid 9815] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9815] ioctl(4, LOOP_CLR_FD) = 0 [pid 9815] close(4 [pid 9816] <... close resumed>) = 0 [pid 9814] <... close resumed>) = 0 [pid 9816] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9778] <... futex resumed>) = 0 [pid 9778] exit_group(0) = ? [pid 9814] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9775] <... futex resumed>) = 0 [pid 9775] exit_group(0) = ? [pid 9816] +++ exited with 0 +++ [pid 9780] <... futex resumed>) = ? [pid 9776] <... futex resumed>) = ? [pid 9814] +++ exited with 0 +++ [pid 9780] +++ exited with 0 +++ [pid 9778] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9778, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=78 /* 0.78 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 9776] +++ exited with 0 +++ [pid 9775] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9775, si_uid=0, si_status=0, si_utime=27 /* 0.27 s */, si_stime=93 /* 0.93 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5850] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9817] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5850] <... openat resumed>) = 3 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] close(3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] <... close resumed>) = 0 [pid 5850] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5850] <... close resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 9884 [pid 9817] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9884 attached ./strace-static-x86_64: Process 9885 attached [pid 9817] <... openat resumed>) = 4 [pid 9885] set_robust_list(0x5555693e0760, 24) = 0 [pid 9817] ioctl(4, LOOP_CLR_FD [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 9885 [pid 9885] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9817] <... ioctl resumed>) = 0 [pid 9885] <... prctl resumed>) = 0 [pid 9884] set_robust_list(0x5555693e0760, 24 [pid 9885] setpgid(0, 0 [pid 9884] <... set_robust_list resumed>) = 0 [pid 9884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9884] setpgid(0, 0) = 0 [pid 9885] <... setpgid resumed>) = 0 [pid 9884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9817] close(4 [pid 9885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9884] <... openat resumed>) = 3 [pid 9885] <... openat resumed>) = 3 [pid 9884] write(3, "1000", 4executing program ) = 4 [pid 9885] write(3, "1000", 4 [pid 9884] close(3) = 0 [pid 9885] <... write resumed>) = 4 [pid 9884] write(1, "executing program\n", 18 [pid 9885] close(3 [pid 9884] <... write resumed>) = 18 [pid 9885] <... close resumed>) = 0 [pid 9884] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9885] write(1, "executing program\n", 18 [pid 9884] <... futex resumed>) = 0 executing program [pid 9885] <... write resumed>) = 18 [pid 9884] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9885] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9884] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9885] <... futex resumed>) = 0 [pid 9884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9885] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 9884] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9885] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9885] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 9884] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9885] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9884] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9885] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9884] <... mprotect resumed>) = 0 [pid 9885] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9884] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9885] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9884] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9885] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9886 attached [pid 9885] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9885] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 9884] <... clone3 resumed> => {parent_tid=[9886]}, 88) = 9886 [pid 9884] rt_sigprocmask(SIG_SETMASK, [], [pid 9886] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9885] <... clone3 resumed> => {parent_tid=[9887]}, 88) = 9887 [pid 9884] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 9887 attached [pid 9886] <... rseq resumed>) = 0 [pid 9885] rt_sigprocmask(SIG_SETMASK, [], [pid 9884] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9886] set_robust_list(0x7ff7dbc929a0, 24 [pid 9885] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9884] <... futex resumed>) = 0 [pid 9886] <... set_robust_list resumed>) = 0 [pid 9885] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9884] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9887] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9886] rt_sigprocmask(SIG_SETMASK, [], [pid 9885] <... futex resumed>) = 0 [pid 9885] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9887] <... rseq resumed>) = 0 [pid 9886] memfd_create("syzkaller", 0) = 3 [pid 9887] set_robust_list(0x7ff7dbc929a0, 24 [pid 9886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9887] <... set_robust_list resumed>) = 0 [pid 9887] rt_sigprocmask(SIG_SETMASK, [], [pid 9886] <... mmap resumed>) = 0x7ff7d3800000 [pid 9887] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9887] memfd_create("syzkaller", 0) = 3 [pid 9887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9815] <... close resumed>) = 0 [pid 9815] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9777] <... futex resumed>) = 0 [pid 9815] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9777] exit_group(0 [pid 9815] <... futex resumed>) = ? [pid 9782] <... futex resumed>) = ? [pid 9777] <... exit_group resumed>) = ? [pid 9815] +++ exited with 0 +++ [pid 9782] +++ exited with 0 +++ [pid 9777] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9777, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=89 /* 0.89 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9888 attached [pid 9835] <... write resumed>) = 16777216 [pid 9888] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 9888 [pid 9888] <... set_robust_list resumed>) = 0 [pid 9888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9835] munmap(0x7ff7d3800000, 138412032 [pid 9888] <... prctl resumed>) = 0 [pid 9888] setpgid(0, 0) = 0 [pid 9888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9888] write(3, "1000", 4) = 4 [pid 9888] close(3executing program ) = 0 [pid 9888] write(1, "executing program\n", 18) = 18 [pid 9835] <... munmap resumed>) = 0 [pid 9888] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9888] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9835] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9888] <... mmap resumed>) = 0x7ff7dbc72000 [pid 9835] <... openat resumed>) = 4 [pid 9888] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 9835] ioctl(4, LOOP_SET_FD, 3 [pid 9888] <... mprotect resumed>) = 0 [pid 9835] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9835] ioctl(4, LOOP_CLR_FD [pid 9888] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9835] <... ioctl resumed>) = 0 [pid 9888] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9889 attached [pid 9889] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9888] <... clone3 resumed> => {parent_tid=[9889]}, 88) = 9889 [pid 9889] <... rseq resumed>) = 0 [pid 9888] rt_sigprocmask(SIG_SETMASK, [], [pid 9889] set_robust_list(0x7ff7dbc929a0, 24 [pid 9888] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9889] <... set_robust_list resumed>) = 0 [pid 9888] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9889] rt_sigprocmask(SIG_SETMASK, [], [pid 9888] <... futex resumed>) = 0 [pid 9889] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9835] ioctl(4, LOOP_SET_FD, 3 [pid 9888] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9889] memfd_create("syzkaller", 0 [pid 9835] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 9835] close(4 [pid 9889] <... memfd_create resumed>) = 3 [pid 9835] <... close resumed>) = 0 [pid 9889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9835] close(3 [pid 9889] <... mmap resumed>) = 0x7ff7d3800000 [pid 9817] <... close resumed>) = 0 [pid 9817] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9817] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9783] <... futex resumed>) = 0 [pid 9783] exit_group(0 [pid 9817] <... futex resumed>) = ? [pid 9784] <... futex resumed>) = ? [pid 9783] <... exit_group resumed>) = ? [pid 9817] +++ exited with 0 +++ [pid 9784] +++ exited with 0 +++ [pid 9783] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9783, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=89 /* 0.89 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9890 attached , child_tidptr=0x5555693e0750) = 9890 [pid 9890] set_robust_list(0x5555693e0760, 24) = 0 [pid 9890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9890] setpgid(0, 0) = 0 [pid 9890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9890] write(3, "1000", 4) = 4 [pid 9890] close(3executing program ) = 0 [pid 9890] write(1, "executing program\n", 18) = 18 [pid 9890] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9890] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9890] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9891 attached => {parent_tid=[9891]}, 88) = 9891 [pid 9891] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9890] rt_sigprocmask(SIG_SETMASK, [], [pid 9891] <... rseq resumed>) = 0 [pid 9891] set_robust_list(0x7ff7dbc929a0, 24 [pid 9890] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9891] <... set_robust_list resumed>) = 0 [pid 9890] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9891] rt_sigprocmask(SIG_SETMASK, [], [pid 9890] <... futex resumed>) = 0 [pid 9891] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9890] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9891] memfd_create("syzkaller", 0) = 3 [pid 9891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9887] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9835] <... close resumed>) = 0 [pid 9835] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9834] <... futex resumed>) = 0 [pid 9835] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9834] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9835] <... futex resumed>) = 0 [pid 9834] <... futex resumed>) = 1 [pid 9835] creat("./bus", 000 [pid 9834] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9835] <... creat resumed>) = 3 [pid 9835] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9835] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9834] <... futex resumed>) = 0 [pid 9834] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9835] <... futex resumed>) = 0 [pid 9834] <... futex resumed>) = 1 [pid 9835] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9834] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9834] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9834] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9834] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9834] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9834] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9892]}, 88) = 9892 [pid 9834] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9834] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9834] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9892 attached [pid 9892] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9892] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9892] memfd_create("syzkaller", 0) = 4 [pid 9892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9889] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9891] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9887] <... write resumed>) = 16777216 [pid 9886] <... write resumed>) = 16777216 [pid 9886] munmap(0x7ff7d3800000, 138412032 [pid 9887] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9886] <... munmap resumed>) = 0 [pid 9886] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9887] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9886] <... openat resumed>) = 4 [pid 9887] ioctl(4, LOOP_SET_FD, 3 [pid 9886] ioctl(4, LOOP_SET_FD, 3 [pid 9887] <... ioctl resumed>) = 0 [pid 9886] <... ioctl resumed>) = 0 [pid 9886] close(3) = 0 [pid 9887] close(3) = 0 [pid 9887] close(4) = 0 [pid 9887] mkdir("./file1", 0777 [pid 9886] close(4) = 0 [pid 9887] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9886] mkdir("./file1", 0777 [ 365.619001][ T9887] loop4: detected capacity change from 0 to 32768 [ 365.619470][ T9886] loop1: detected capacity change from 0 to 32768 [pid 9887] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9886] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9886] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 365.754436][ T9887] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 365.772479][ T9886] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 365.783638][ T9887] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 365.792442][ T9886] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9892] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9889] <... write resumed>) = 16777216 [pid 9891] <... write resumed>) = 16777216 [pid 9889] munmap(0x7ff7d3800000, 138412032 [pid 9891] munmap(0x7ff7d3800000, 138412032 [pid 9889] <... munmap resumed>) = 0 [pid 9889] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9891] <... munmap resumed>) = 0 [pid 9889] <... openat resumed>) = 4 [pid 9891] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9889] ioctl(4, LOOP_SET_FD, 3 [pid 9891] <... openat resumed>) = 4 [pid 9891] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9889] <... ioctl resumed>) = 0 [pid 9887] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9889] close(3 [pid 9891] close(3 [pid 9889] <... close resumed>) = 0 [pid 9887] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 9891] <... close resumed>) = 0 [pid 9889] close(4 [pid 9887] <... openat resumed>) = 3 [pid 9889] <... close resumed>) = 0 [pid 9887] ioctl(3, LOOP_CLR_FD [pid 9889] mkdir("./file1", 0777 [pid 9891] close(4) = 0 [pid 9889] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9887] <... ioctl resumed>) = 0 [pid 9891] mkdir("./file1", 0777 [pid 9889] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9887] close(3 [pid 9891] <... mkdir resumed>) = -1 EEXIST (File exists) [ 365.963812][ T9889] loop0: detected capacity change from 0 to 32768 [ 365.973361][ T9887] bcachefs: bch2_fs_get_tree() error: EINVAL [ 365.979800][ T9891] loop3: detected capacity change from 0 to 32768 [pid 9891] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9886] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9886] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9886] ioctl(3, LOOP_CLR_FD) = 0 [ 366.006980][ T9886] bcachefs: bch2_fs_get_tree() error: EINVAL [ 366.172715][ T9891] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 366.182039][ T9891] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9886] close(3 [pid 9892] <... write resumed>) = 16777216 [pid 9892] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9892] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 9892] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9892] ioctl(5, LOOP_CLR_FD) = 0 [pid 9892] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9892] close(5) = 0 [ 366.237478][ T9889] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 366.257776][ T9889] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9892] close(4 [pid 9887] <... close resumed>) = 0 [pid 9887] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9885] <... futex resumed>) = 0 [pid 9887] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9885] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9887] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9885] <... futex resumed>) = 0 [pid 9887] creat("./bus", 000 [pid 9885] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9889] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9886] <... close resumed>) = 0 [pid 9889] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9886] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9889] <... openat resumed>) = 3 [pid 9886] <... futex resumed>) = 1 [pid 9884] <... futex resumed>) = 0 [pid 9889] ioctl(3, LOOP_CLR_FD [pid 9886] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9884] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9835] <... write resumed>) = 16776704 [pid 9889] <... ioctl resumed>) = 0 [pid 9886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9884] <... futex resumed>) = 0 [pid 9835] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9889] close(3 [pid 9886] creat("./bus", 000 [pid 9884] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9835] <... futex resumed>) = 0 [ 366.428291][ T9889] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9835] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9885] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9891] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9891] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9885] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9891] <... openat resumed>) = 3 [pid 9891] ioctl(3, LOOP_CLR_FD) = 0 [pid 9885] <... futex resumed>) = 0 [pid 9885] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9891] close(3 [pid 9885] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9884] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9885] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9884] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9885] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9884] <... futex resumed>) = 0 [pid 9885] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9922 attached [pid 9884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9922] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9885] <... clone3 resumed> => {parent_tid=[9922]}, 88) = 9922 [pid 9884] <... mmap resumed>) = 0x7ff7dbc51000 [pid 9885] rt_sigprocmask(SIG_SETMASK, [], [pid 9884] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9885] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9885] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9884] <... mprotect resumed>) = 0 [pid 9885] <... futex resumed>) = 0 [pid 9885] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9884] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9923 attached [pid 9923] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [ 366.492996][ T9891] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 9923] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9923] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9884] <... clone3 resumed> => {parent_tid=[9923]}, 88) = 9923 [pid 9922] <... rseq resumed>) = 0 [pid 9884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9922] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9884] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9922] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9884] <... futex resumed>) = 1 [pid 9923] <... futex resumed>) = 0 [pid 9923] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9923] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9923] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9922] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9884] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9922] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9922] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9884] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9922] <... futex resumed>) = 1 [pid 9885] <... futex resumed>) = 0 [pid 9884] <... futex resumed>) = 1 [pid 9923] <... futex resumed>) = 0 [pid 9923] memfd_create("syzkaller", 0 [pid 9885] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9884] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9923] <... memfd_create resumed>) = 4 [pid 9922] memfd_create("syzkaller", 0 [pid 9885] <... futex resumed>) = 0 [pid 9923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9922] <... memfd_create resumed>) = 4 [pid 9885] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9923] <... mmap resumed>) = 0x7ff7d3800000 [pid 9922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9892] <... close resumed>) = 0 [pid 9892] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9892] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9834] <... futex resumed>) = 0 [pid 9834] exit_group(0 [pid 9835] <... futex resumed>) = ? [pid 9834] <... exit_group resumed>) = ? [pid 9892] <... futex resumed>) = ? [pid 9892] +++ exited with 0 +++ [pid 9835] +++ exited with 0 +++ [pid 9834] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9834, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=108 /* 1.08 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9924 attached [pid 9924] set_robust_list(0x5555693e0760, 24 [pid 9889] <... close resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 9924 [pid 9924] <... set_robust_list resumed>) = 0 [pid 9924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9924] setpgid(0, 0) = 0 [pid 9924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9889] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] write(3, "1000", 4 [pid 9889] <... futex resumed>) = 1 [pid 9924] <... write resumed>) = 4 [pid 9889] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9924] close(3executing program ) = 0 [pid 9888] <... futex resumed>) = 0 [pid 9924] write(1, "executing program\n", 18) = 18 [pid 9888] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9889] <... futex resumed>) = 0 [pid 9888] <... futex resumed>) = 1 [pid 9924] <... futex resumed>) = 0 [pid 9889] creat("./bus", 000 [pid 9924] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9888] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9924] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9925 attached => {parent_tid=[9925]}, 88) = 9925 [pid 9924] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9924] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9925] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9924] <... futex resumed>) = 0 [pid 9925] <... rseq resumed>) = 0 [pid 9924] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9925] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9925] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9925] memfd_create("syzkaller", 0) = 3 [pid 9925] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9888] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9888] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9891] <... close resumed>) = 0 [pid 9888] <... futex resumed>) = 0 [pid 9891] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9888] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 9891] <... futex resumed>) = 1 [pid 9890] <... futex resumed>) = 0 [pid 9888] <... mprotect resumed>) = 0 [pid 9891] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9890] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9888] rt_sigprocmask(SIG_BLOCK, ~[], [pid 9891] <... futex resumed>) = 0 [pid 9890] <... futex resumed>) = 1 [pid 9888] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9891] creat("./bus", 000 [pid 9890] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 9926 attached => {parent_tid=[9926]}, 88) = 9926 [pid 9926] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 9888] rt_sigprocmask(SIG_SETMASK, [], [pid 9926] <... rseq resumed>) = 0 [pid 9888] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9926] set_robust_list(0x7ff7dbc719a0, 24 [pid 9888] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 9926] <... set_robust_list resumed>) = 0 [pid 9888] <... futex resumed>) = 0 [pid 9926] rt_sigprocmask(SIG_SETMASK, [], [pid 9888] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9926] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9886] <... creat resumed>) = 3 [pid 9926] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9891] <... creat resumed>) = 3 [pid 9889] <... creat resumed>) = 3 [pid 9886] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9891] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9886] <... futex resumed>) = 0 [pid 9926] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 9889] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9926] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9891] <... futex resumed>) = 1 [pid 9890] <... futex resumed>) = 0 [pid 9889] <... futex resumed>) = 0 [pid 9886] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9926] <... futex resumed>) = 1 [pid 9891] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9890] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9889] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9888] <... futex resumed>) = 0 [pid 9926] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9891] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9890] <... futex resumed>) = 0 [pid 9888] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9887] <... creat resumed>) = 3 [pid 9891] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9890] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9889] <... futex resumed>) = 0 [pid 9888] <... futex resumed>) = 1 [pid 9887] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9889] memfd_create("syzkaller", 0 [pid 9888] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9887] <... futex resumed>) = 0 [pid 9889] <... memfd_create resumed>) = 4 [pid 9887] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9890] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9890] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9890] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 9922] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 9927 attached [pid 9927] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9927] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9923] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9890] <... clone3 resumed> => {parent_tid=[9927]}, 88) = 9927 [pid 9927] rt_sigprocmask(SIG_SETMASK, [], [pid 9890] rt_sigprocmask(SIG_SETMASK, [], [pid 9927] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9890] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9890] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9927] memfd_create("syzkaller", 0) = 4 [pid 9927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9890] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9925] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9889] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9922] <... write resumed>) = 16777216 [pid 9922] munmap(0x7ff7d3800000, 138412032 [pid 9927] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9923] <... write resumed>) = 16777216 [pid 9923] munmap(0x7ff7d3800000, 138412032 [pid 9922] <... munmap resumed>) = 0 [pid 9922] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 9922] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9923] <... munmap resumed>) = 0 [ 367.519594][ T9922] loop4: detected capacity change from 0 to 32768 [ 367.549500][ T9923] loop1: detected capacity change from 0 to 32768 [pid 9922] close(4) = 0 [pid 9923] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9922] close(5 [pid 9923] <... openat resumed>) = 5 [pid 9922] <... close resumed>) = 0 [pid 9923] ioctl(5, LOOP_SET_FD, 4 [pid 9922] mkdir("./bus", 0777 [pid 9923] <... ioctl resumed>) = 0 [pid 9922] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9922] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9923] close(4) = 0 [pid 9923] close(5) = 0 [pid 9923] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 367.558525][ T9922] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (9922) [ 367.621344][ T9923] BTRFS: device /dev/loop1 (7:1) using temp-fsid 102c2e32-02f4-4b8d-91a2-120efbc10a82 [ 367.649629][ T9923] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (9923) [ 367.667719][ T9922] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 367.690298][ T9922] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 367.727690][ T9923] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 367.761708][ T9923] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 9923] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9925] <... write resumed>) = 16777216 [pid 9925] munmap(0x7ff7d3800000, 138412032 [pid 9889] <... write resumed>) = 16777216 [pid 9889] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 9889] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9889] close(4) = 0 [pid 9889] close(5 [pid 9925] <... munmap resumed>) = 0 [pid 9889] <... close resumed>) = 0 [pid 9889] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 367.853864][ T9922] BTRFS info (device loop4): rebuilding free space tree [ 367.869737][ T9889] loop0: detected capacity change from 0 to 32768 [pid 9889] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 9925] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9925] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9925] ioctl(4, LOOP_CLR_FD) = 0 [pid 9925] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 9925] close(4) = 0 [ 367.901938][ T9889] BTRFS: device /dev/loop0 (7:0) using temp-fsid 3fa509d0-71c0-49d3-8059-c31d97b3f3f4 [ 367.914918][ T9922] BTRFS info (device loop4): disabling free space tree [ 367.938852][ T9889] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (9889) [ 367.985333][ T9922] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9925] close(3 [pid 9927] <... write resumed>) = 16777216 [ 368.031061][ T9889] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 368.053512][ T9922] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 368.053867][ T9889] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 9927] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9927] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 368.081723][ T9923] BTRFS info (device loop1): rebuilding free space tree [pid 9927] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 9891] <... write resumed>) = 16776704 [pid 9927] close(4) = 0 [pid 9927] close(5) = 0 [pid 9927] mkdir("./bus", 0777 [pid 9891] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 9927] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9891] <... futex resumed>) = 0 [pid 9927] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 368.140178][ T9927] loop3: detected capacity change from 0 to 32768 [ 368.148430][ T9923] BTRFS info (device loop1): disabling free space tree [ 368.158588][ T9922] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 368.170425][ T9923] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 368.190516][ T9927] BTRFS: device /dev/loop3 (7:3) using temp-fsid baca860b-dd23-46b9-9559-96d1a7ab4e9d [ 368.221728][ T9923] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9891] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9925] <... close resumed>) = 0 [pid 9925] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9925] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9924] <... futex resumed>) = 0 [pid 9924] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9924] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9925] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 368.228943][ T9927] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (9927) [pid 9925] creat("./bus", 000 [pid 9924] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9924] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9924] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9924] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[9971]}, 88) = 9971 [pid 9924] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9924] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9924] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9971 attached [pid 9971] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 9971] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 9971] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9971] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 9971] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9924] <... futex resumed>) = 0 [pid 9924] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9924] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9971] memfd_create("syzkaller", 0) = 4 [ 368.267907][ T9923] BTRFS info (device loop1): last unmount of filesystem 102c2e32-02f4-4b8d-91a2-120efbc10a82 [pid 9971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9922] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9922] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9922] ioctl(4, LOOP_CLR_FD) = 0 [pid 9922] close(4) = 0 [pid 9922] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9885] <... futex resumed>) = 0 [pid 9885] exit_group(0 [pid 9887] <... futex resumed>) = ? [pid 9885] <... exit_group resumed>) = ? [pid 9887] +++ exited with 0 +++ [pid 9922] +++ exited with 0 +++ [pid 9885] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9885, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=88 /* 0.88 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = 0 [pid 5850] close(3) = 0 [ 368.377730][ T9927] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9978 attached [pid 9978] set_robust_list(0x5555693e0760, 24) = 0 [pid 9978] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 9978 executing program [pid 9978] <... prctl resumed>) = 0 [pid 9978] setpgid(0, 0) = 0 [pid 9978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9978] write(3, "1000", 4) = 4 [pid 9978] close(3) = 0 [pid 9978] write(1, "executing program\n", 18) = 18 [pid 9978] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9978] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9978] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9978] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9978] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9978] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[9979]}, 88) = 9979 [pid 9978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 9979 attached [pid 9978] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9978] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9979] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 9979] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 9979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 368.420793][ T9889] BTRFS info (device loop0): rebuilding free space tree [ 368.448159][ T9927] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 9979] memfd_create("syzkaller", 0 [pid 9923] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9979] <... memfd_create resumed>) = 3 [pid 9979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9923] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9923] ioctl(4, LOOP_CLR_FD) = 0 [pid 9923] close(4 [pid 9925] <... creat resumed>) = 3 [pid 9925] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 368.494939][ T9889] BTRFS info (device loop0): disabling free space tree [ 368.554730][ T9889] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 368.626704][ T9889] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 368.689200][ T9889] BTRFS info (device loop0): last unmount of filesystem 3fa509d0-71c0-49d3-8059-c31d97b3f3f4 [ 368.717872][ T9927] BTRFS info (device loop3): rebuilding free space tree [ 368.779273][ T9927] BTRFS info (device loop3): disabling free space tree [ 368.786313][ T9927] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 9925] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9889] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9889] ioctl(4, LOOP_CLR_FD) = 0 [pid 9889] close(4) = 0 [pid 9889] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9889] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9888] <... futex resumed>) = 0 [pid 9888] exit_group(0) = ? [pid 9926] <... futex resumed>) = ? [pid 9926] +++ exited with 0 +++ [pid 9889] <... futex resumed>) = ? [pid 9889] +++ exited with 0 +++ [pid 9888] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9888, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=75 /* 0.75 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 368.826874][ T9927] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 9979] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5843] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 9997 ./strace-static-x86_64: Process 9997 attached [pid 9997] set_robust_list(0x5555693e0760, 24) = 0 [pid 9997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9997] setpgid(0, 0) = 0 [pid 9997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 9997] write(3, "1000", 4) = 4 [pid 9997] close(3) = 0 [pid 9997] write(1, "executing program\n", 18) = 18 [pid 9997] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9997] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 9997] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9997] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9997] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 9998 attached => {parent_tid=[9998]}, 88) = 9998 [pid 9997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9998] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 9997] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9998] <... rseq resumed>) = 0 [pid 9997] <... futex resumed>) = 0 [pid 9998] set_robust_list(0x7ff7dbc929a0, 24 [pid 9997] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9998] <... set_robust_list resumed>) = 0 [pid 9998] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9998] memfd_create("syzkaller", 0) = 3 [pid 9998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9923] <... close resumed>) = 0 [ 368.949467][ T9927] BTRFS info (device loop3): last unmount of filesystem baca860b-dd23-46b9-9559-96d1a7ab4e9d [pid 9923] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9884] <... futex resumed>) = 0 [pid 9923] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9884] exit_group(0 [pid 9923] <... futex resumed>) = ? [pid 9886] <... futex resumed>) = ? [pid 9884] <... exit_group resumed>) = ? [pid 9923] +++ exited with 0 +++ [pid 9886] +++ exited with 0 +++ [pid 9884] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9884, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=86 /* 0.86 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9999 attached [pid 9999] set_robust_list(0x5555693e0760, 24 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 9999 [pid 9999] <... set_robust_list resumed>) = 0 [pid 9999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9927] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 9999] <... prctl resumed>) = 0 [pid 9927] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 9999] setpgid(0, 0 [pid 9927] <... openat resumed>) = 4 [pid 9927] ioctl(4, LOOP_CLR_FD) = 0 [pid 9927] close(4) = 0 [pid 9927] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9890] <... futex resumed>) = 0 [pid 9999] <... setpgid resumed>) = 0 [pid 9927] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9890] exit_group(0 [pid 9999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9927] <... futex resumed>) = ? [pid 9891] <... futex resumed>) = ? [pid 9890] <... exit_group resumed>) = ? [pid 9927] +++ exited with 0 +++ [pid 9999] <... openat resumed>) = 3 [pid 9999] write(3, "1000", 4) = 4 [pid 9999] close(3 [pid 9971] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9999] <... close resumed>) = 0 [pid 9999] write(1, "executing program\n", 18executing program [pid 9891] +++ exited with 0 +++ [pid 9890] +++ exited with 0 +++ [pid 9999] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9890, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=113 /* 1.13 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 9999] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9999] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = 0 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10000 ./strace-static-x86_64: Process 10000 attached [pid 9999] <... rt_sigaction resumed>NULL, 8) = 0 [pid 9999] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 9999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 9999] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9999] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9999] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10001 attached [pid 10000] set_robust_list(0x5555693e0760, 24) = 0 [pid 10000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9999] <... clone3 resumed> => {parent_tid=[10001]}, 88) = 10001 [pid 10000] <... prctl resumed>) = 0 [pid 9999] rt_sigprocmask(SIG_SETMASK, [], [pid 10001] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10000] setpgid(0, 0 [pid 9999] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9999] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10000] <... setpgid resumed>) = 0 [pid 9999] <... futex resumed>) = 0 [pid 10001] <... rseq resumed>) = 0 [pid 9999] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10001] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10001] rt_sigprocmask(SIG_SETMASK, [], executing program NULL, 8) = 0 [pid 10000] <... openat resumed>) = 3 [pid 10000] write(3, "1000", 4) = 4 [pid 10000] close(3) = 0 [pid 10000] write(1, "executing program\n", 18) = 18 [pid 10000] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10000] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10000] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10001] memfd_create("syzkaller", 0 [pid 10000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10001] <... memfd_create resumed>) = 3 [pid 10000] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10000] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10000] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10000] <... clone3 resumed> => {parent_tid=[10002]}, 88) = 10002 ./strace-static-x86_64: Process 10002 attached [pid 10001] <... mmap resumed>) = 0x7ff7d3800000 [pid 10000] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10000] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10000] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10002] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10002] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10002] memfd_create("syzkaller", 0) = 3 [pid 10002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 9979] <... write resumed>) = 16777216 [pid 9998] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9979] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9979] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 9979] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9979] close(3) = 0 [pid 9979] close(4) = 0 [pid 9979] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 369.566932][ T9979] loop4: detected capacity change from 0 to 32768 [pid 9979] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9971] <... write resumed>) = 16777216 [pid 9971] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9971] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9971] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9971] ioctl(5, LOOP_CLR_FD) = 0 [pid 9971] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 9971] close(5) = 0 [ 369.705587][ T9979] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9971] close(4 [pid 9998] <... write resumed>) = 16777216 [ 369.778875][ T9979] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10002] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9998] munmap(0x7ff7d3800000, 138412032) = 0 [pid 9998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9998] ioctl(4, LOOP_SET_FD, 3 [pid 10001] <... write resumed>) = 16777216 [pid 9998] <... ioctl resumed>) = 0 [pid 10001] munmap(0x7ff7d3800000, 138412032 [pid 9998] close(3) = 0 [pid 9998] close(4) = 0 [ 369.885206][ T9998] loop0: detected capacity change from 0 to 32768 [pid 9998] mkdir("./file1", 0777 [pid 10001] <... munmap resumed>) = 0 [pid 9998] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9998] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10001] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10001] ioctl(4, LOOP_SET_FD, 3 [pid 9979] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10001] <... ioctl resumed>) = 0 [pid 10001] close(3) = 0 [pid 9979] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10001] close(4 [pid 9979] <... openat resumed>) = 3 [ 369.960191][T10001] loop1: detected capacity change from 0 to 32768 [ 369.978609][ T9979] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10001] <... close resumed>) = 0 [pid 9979] ioctl(3, LOOP_CLR_FD) = 0 [pid 10001] mkdir("./file1", 0777 [pid 9979] close(3 [pid 10001] <... mkdir resumed>) = -1 EEXIST (File exists) [ 370.079584][ T9998] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10001] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 9971] <... close resumed>) = 0 [pid 9971] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9924] <... futex resumed>) = 0 [pid 9924] exit_group(0 [pid 9925] <... futex resumed>) = ? [pid 9924] <... exit_group resumed>) = ? [pid 9925] +++ exited with 0 +++ [pid 9971] +++ exited with 0 +++ [pid 9924] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9924, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=83 /* 0.83 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 370.121273][ T9998] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 370.154930][T10001] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 9979] <... close resumed>) = 0 [pid 9979] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... ioctl resumed>) = 0 [pid 5845] close(3) = 0 [pid 9979] <... futex resumed>) = 1 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10024 attached [pid 9979] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9978] <... futex resumed>) = 0 [ 370.208227][T10001] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 10024 [pid 9978] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9978] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9979] <... futex resumed>) = 0 [pid 10024] set_robust_list(0x5555693e0760, 24 [pid 9979] creat("./bus", 000 [pid 10024] <... set_robust_list resumed>) = 0 [pid 9979] <... creat resumed>) = 3 [pid 10024] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9979] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10024] <... prctl resumed>) = 0 [pid 10024] setpgid(0, 0) = 0 [pid 10024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9979] <... futex resumed>) = 1 [pid 10024] <... openat resumed>) = 3 [pid 9979] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10002] <... write resumed>) = 16777216 [pid 10024] write(3, "1000", 4) = 4 [pid 9978] <... futex resumed>) = 0 [pid 9978] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 9979] <... futex resumed>) = 0 [pid 9978] <... futex resumed>) = 1 [pid 9979] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 9978] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10024] close(3) = 0 [pid 10024] write(1, "executing program\n", 18executing program ) = 18 [pid 10024] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10024] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10024] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10025]}, 88) = 10025 ./strace-static-x86_64: Process 10025 attached [pid 10024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10024] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10024] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10002] munmap(0x7ff7d3800000, 138412032 [pid 10025] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10025] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10002] <... munmap resumed>) = 0 [pid 10002] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10025] rt_sigprocmask(SIG_SETMASK, [], [pid 9978] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9978] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10025] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 9978] <... futex resumed>) = 0 [pid 9978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10025] memfd_create("syzkaller", 0 [pid 9978] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10002] <... openat resumed>) = 4 [pid 9978] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10002] ioctl(4, LOOP_SET_FD, 3 [pid 9978] <... mprotect resumed>) = 0 [pid 10025] <... memfd_create resumed>) = 3 [pid 9978] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9978] <... rt_sigprocmask resumed>[], 8) = 0 [pid 9978] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 10025] <... mmap resumed>) = 0x7ff7d3800000 [pid 9978] <... clone3 resumed> => {parent_tid=[10026]}, 88) = 10026 [pid 9978] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 10026 attached NULL, 8) = 0 [pid 9978] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9978] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10026] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10026] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10026] memfd_create("syzkaller", 0) = 4 [pid 10026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10002] <... ioctl resumed>) = 0 [pid 10001] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10002] close(3) = 0 [pid 10002] close(4) = 0 [pid 10002] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10002] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10001] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 370.353625][T10002] loop3: detected capacity change from 0 to 32768 [ 370.379290][T10001] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10001] ioctl(3, LOOP_CLR_FD) = 0 [pid 10001] close(3 [pid 9998] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 9998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 9998] ioctl(3, LOOP_CLR_FD) = 0 [ 370.419739][ T9998] bcachefs: bch2_fs_get_tree() error: EINVAL [ 370.565503][T10002] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 9998] close(3) = 0 [pid 9998] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9997] <... futex resumed>) = 0 [pid 9997] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9997] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 370.622876][T10002] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 9998] creat("./bus", 000 [pid 9997] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9997] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9997] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9997] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10034 attached => {parent_tid=[10034]}, 88) = 10034 [pid 9997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9997] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9997] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10034] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10034] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10034] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10034] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9997] <... futex resumed>) = 0 [pid 9997] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10034] memfd_create("syzkaller", 0 [pid 9997] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10034] <... memfd_create resumed>) = 4 [pid 10034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10001] <... close resumed>) = 0 [pid 10001] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9999] <... futex resumed>) = 0 [pid 10001] creat("./bus", 000 [pid 9999] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9999] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 9999] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9999] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 9999] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9999] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 9999] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10035]}, 88) = 10035 [pid 9999] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 9999] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9999] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10035 attached [pid 10035] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10035] set_robust_list(0x7ff7dbc719a0, 24 [pid 10002] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10035] <... set_robust_list resumed>) = 0 [pid 10035] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10035] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10035] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [ 370.885347][T10002] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10002] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10035] <... futex resumed>) = 1 [pid 9999] <... futex resumed>) = 0 [pid 10002] <... openat resumed>) = 3 [pid 9999] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10035] memfd_create("syzkaller", 0 [pid 9999] <... futex resumed>) = 0 [pid 10002] ioctl(3, LOOP_CLR_FD [pid 10035] <... memfd_create resumed>) = 4 [pid 9999] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10002] <... ioctl resumed>) = 0 [pid 10035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10002] close(3 [pid 10035] <... mmap resumed>) = 0x7ff7d3800000 [pid 10026] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10034] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10002] <... close resumed>) = 0 [pid 10002] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10002] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10000] <... futex resumed>) = 0 [pid 10000] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10002] <... futex resumed>) = 0 [pid 10000] <... futex resumed>) = 1 [pid 10002] creat("./bus", 000 [pid 10000] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10000] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10000] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10000] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10000] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10037 attached => {parent_tid=[10037]}, 88) = 10037 [pid 10037] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10000] rt_sigprocmask(SIG_SETMASK, [], [pid 10037] <... rseq resumed>) = 0 [pid 10000] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10000] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10000] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10037] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10037] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10037] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10037] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10000] <... futex resumed>) = 0 [pid 10037] memfd_create("syzkaller", 0 [pid 10000] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10037] <... memfd_create resumed>) = 4 [pid 10000] <... futex resumed>) = 0 [pid 10037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10000] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10037] <... mmap resumed>) = 0x7ff7d3800000 [pid 10025] <... write resumed>) = 16777216 [pid 10025] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10035] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10025] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10025] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10025] ioctl(4, LOOP_CLR_FD) = 0 [pid 10025] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10025] close(4) = 0 [pid 10025] close(3 [pid 9979] <... write resumed>) = 16776704 [pid 9979] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9979] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10026] <... write resumed>) = 16777216 [pid 10026] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10026] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 10026] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10026] close(4) = 0 [pid 10026] close(5) = 0 [ 371.589385][T10026] loop4: detected capacity change from 0 to 32768 [pid 10026] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10026] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10025] <... close resumed>) = 0 [pid 10025] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10024] <... futex resumed>) = 0 [pid 10025] creat("./bus", 000 [pid 10024] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10024] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10034] <... write resumed>) = 16777216 [ 371.673850][T10026] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10026) [pid 10034] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10037] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10034] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10024] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10024] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10034] <... openat resumed>) = 5 [ 371.730544][T10026] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 371.764492][T10026] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 10024] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10034] ioctl(5, LOOP_SET_FD, 4 [pid 10024] <... mprotect resumed>) = 0 [pid 10024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10040 attached => {parent_tid=[10040]}, 88) = 10040 [pid 10040] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10024] rt_sigprocmask(SIG_SETMASK, [], [pid 10040] <... rseq resumed>) = 0 [pid 10024] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10040] set_robust_list(0x7ff7dbc719a0, 24 [pid 10024] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10040] <... set_robust_list resumed>) = 0 [pid 10024] <... futex resumed>) = 0 [pid 10040] rt_sigprocmask(SIG_SETMASK, [], [pid 10024] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10040] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10034] <... ioctl resumed>) = 0 [pid 10040] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10034] close(4 [pid 10040] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10034] <... close resumed>) = 0 [pid 10040] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10034] close(5 [pid 10040] <... futex resumed>) = 1 [pid 10034] <... close resumed>) = 0 [pid 10024] <... futex resumed>) = 0 [pid 10040] memfd_create("syzkaller", 0 [pid 10034] mkdir("./bus", 0777 [pid 10024] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10040] <... memfd_create resumed>) = 4 [pid 10034] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10024] <... futex resumed>) = 0 [pid 10040] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10034] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10024] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10040] <... mmap resumed>) = 0x7ff7d3800000 [ 371.789597][T10034] loop0: detected capacity change from 0 to 32768 [ 371.843970][T10034] BTRFS: device /dev/loop0 (7:0) using temp-fsid 6daa5517-53d8-42b9-8cf6-6be26c3299f7 [pid 10035] <... write resumed>) = 16777216 [pid 10035] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10035] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10025] <... creat resumed>) = 3 [pid 10002] <... creat resumed>) = 3 [pid 10001] <... creat resumed>) = 3 [pid 9998] <... creat resumed>) = 3 [pid 10025] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10002] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10001] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10025] <... futex resumed>) = 0 [pid 10001] <... futex resumed>) = 0 [pid 10025] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10002] <... futex resumed>) = 0 [pid 10001] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 371.887357][T10034] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10034) [pid 10002] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10035] <... openat resumed>) = 5 [pid 9998] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10035] ioctl(5, LOOP_SET_FD, 4 [pid 9998] <... futex resumed>) = 0 [pid 9998] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10035] <... ioctl resumed>) = 0 [pid 10035] close(4) = 0 [pid 10035] close(5) = 0 [pid 10035] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 371.941114][T10034] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 371.952996][T10035] loop1: detected capacity change from 0 to 32768 [ 371.978762][T10026] BTRFS info (device loop4): rebuilding free space tree [ 372.006819][T10034] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 372.032985][T10035] BTRFS: device /dev/loop1 (7:1) using temp-fsid e112854f-15ae-4d6c-90df-821364aa202e [ 372.062806][T10035] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10035) [ 372.068666][T10026] BTRFS info (device loop4): disabling free space tree [ 372.121610][T10026] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 372.134082][T10035] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 372.169553][T10026] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 372.180466][T10035] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 372.225219][T10034] BTRFS info (device loop0): rebuilding free space tree [ 372.248328][T10026] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10035] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10040] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10037] <... write resumed>) = 16777216 [pid 10037] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10037] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 10037] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10037] close(4) = 0 [pid 10037] close(5) = 0 [pid 10037] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 372.322545][T10034] BTRFS info (device loop0): disabling free space tree [ 372.352042][T10037] loop3: detected capacity change from 0 to 32768 [ 372.354664][T10034] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 372.401502][T10037] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10037) [ 372.409396][T10035] BTRFS info (device loop1): rebuilding free space tree [ 372.436033][T10037] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10037] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10026] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10026] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10026] ioctl(4, LOOP_CLR_FD) = 0 [ 372.446358][T10037] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 372.456229][T10034] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 372.490725][T10035] BTRFS info (device loop1): disabling free space tree [ 372.510472][T10035] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 372.538048][T10034] BTRFS info (device loop0): last unmount of filesystem 6daa5517-53d8-42b9-8cf6-6be26c3299f7 [ 372.548391][T10035] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 372.621333][T10035] BTRFS info (device loop1): last unmount of filesystem e112854f-15ae-4d6c-90df-821364aa202e [pid 10026] close(4) = 0 [ 372.689200][T10037] BTRFS info (device loop3): rebuilding free space tree [pid 10026] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10035] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10034] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10026] <... futex resumed>) = 1 [pid 9978] <... futex resumed>) = 0 [pid 10035] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9978] exit_group(0 [pid 10026] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10035] <... openat resumed>) = 4 [pid 10035] ioctl(4, LOOP_CLR_FD) = 0 [pid 10035] close(4 [pid 10034] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10035] <... close resumed>) = 0 [pid 10026] <... futex resumed>) = ? [pid 9979] <... futex resumed>) = ? [pid 9978] <... exit_group resumed>) = ? [pid 10035] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10026] +++ exited with 0 +++ [pid 9999] <... futex resumed>) = 0 [pid 9979] +++ exited with 0 +++ [pid 10034] <... openat resumed>) = 4 [pid 9999] exit_group(0 [pid 9978] +++ exited with 0 +++ [pid 9999] <... exit_group resumed>) = ? [pid 10001] <... futex resumed>) = ? [pid 10001] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9978, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=116 /* 1.16 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 10034] ioctl(4, LOOP_CLR_FD [pid 10035] +++ exited with 0 +++ [pid 10034] <... ioctl resumed>) = 0 [pid 9999] +++ exited with 0 +++ [pid 10034] close(4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9999, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=76 /* 0.76 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5850] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [ 372.740741][T10037] BTRFS info (device loop3): disabling free space tree [ 372.755216][T10037] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 372.769331][T10037] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5850] <... openat resumed>) = 3 [pid 5844] <... openat resumed>) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] <... ioctl resumed>) = 0 [pid 5850] close(3 [pid 5844] close(3 [pid 5850] <... close resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10104 attached [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 10105 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 10104 ./strace-static-x86_64: Process 10105 attached [pid 10104] set_robust_list(0x5555693e0760, 24) = 0 [pid 10104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10105] set_robust_list(0x5555693e0760, 24 [pid 10104] <... prctl resumed>) = 0 [pid 10105] <... set_robust_list resumed>) = 0 [pid 10104] setpgid(0, 0 [pid 10105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10104] <... setpgid resumed>) = 0 [pid 10105] <... prctl resumed>) = 0 [pid 10104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10105] setpgid(0, 0 [pid 10104] <... openat resumed>) = 3 [pid 10105] <... setpgid resumed>) = 0 [pid 10104] write(3, "1000", 4) = 4 [pid 10104] close(3) = 0 [pid 10104] write(1, "executing program\n", 18executing program ) = 18 [pid 10104] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10104] <... futex resumed>) = 0 [pid 10104] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10104] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [ 372.810088][T10037] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10104] rt_sigprocmask(SIG_BLOCK, ~[], executing program [pid 10105] <... openat resumed>) = 3 [pid 10104] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10105] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 10106 attached [pid 10105] close(3 [pid 10104] <... clone3 resumed> => {parent_tid=[10106]}, 88) = 10106 [pid 10105] <... close resumed>) = 0 [pid 10104] rt_sigprocmask(SIG_SETMASK, [], [pid 10105] write(1, "executing program\n", 18 [pid 10104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10106] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10105] <... write resumed>) = 18 [pid 10104] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10106] <... rseq resumed>) = 0 [pid 10105] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10104] <... futex resumed>) = 0 [pid 10106] set_robust_list(0x7ff7dbc929a0, 24 [pid 10105] <... futex resumed>) = 0 [pid 10104] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10105] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10105] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10105] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10106] <... set_robust_list resumed>) = 0 [pid 10105] <... mprotect resumed>) = 0 [pid 10106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10105] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10106] memfd_create("syzkaller", 0 [pid 10105] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10106] <... memfd_create resumed>) = 3 [pid 10105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10107 attached [pid 10106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10105] <... clone3 resumed> => {parent_tid=[10107]}, 88) = 10107 [pid 10105] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10105] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10105] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10107] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10107] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10107] memfd_create("syzkaller", 0) = 3 [pid 10107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10040] <... write resumed>) = 16777216 [pid 10040] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10037] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10037] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10037] ioctl(4, LOOP_CLR_FD) = 0 [pid 10037] close(4) = 0 [pid 10037] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10000] <... futex resumed>) = 0 [pid 10000] exit_group(0 [pid 10002] <... futex resumed>) = ? [pid 10000] <... exit_group resumed>) = ? [pid 10002] +++ exited with 0 +++ [pid 10040] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10040] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10040] ioctl(5, LOOP_CLR_FD [pid 10037] +++ exited with 0 +++ [pid 10000] +++ exited with 0 +++ [pid 10040] <... ioctl resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10000, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=77 /* 0.77 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 10040] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = 0 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10108 attached , child_tidptr=0x5555693e0750) = 10108 [pid 10108] set_robust_list(0x5555693e0760, 24) = 0 [pid 10108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10108] setpgid(0, 0) = 0 [pid 10108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10040] close(5executing program [pid 10108] <... openat resumed>) = 3 [pid 10040] <... close resumed>) = 0 [pid 10108] write(3, "1000", 4 [pid 10040] close(4 [pid 10108] <... write resumed>) = 4 [pid 10108] close(3) = 0 [pid 10108] write(1, "executing program\n", 18) = 18 [pid 10108] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10108] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10108] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10109]}, 88) = 10109 [pid 10108] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 10109 attached NULL, 8) = 0 [pid 10109] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10108] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10109] <... rseq resumed>) = 0 [pid 10108] <... futex resumed>) = 0 [pid 10109] set_robust_list(0x7ff7dbc929a0, 24 [pid 10108] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10109] <... set_robust_list resumed>) = 0 [pid 10109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10109] memfd_create("syzkaller", 0) = 3 [pid 10109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10034] <... close resumed>) = 0 [pid 10034] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9997] <... futex resumed>) = 0 [pid 10034] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9997] exit_group(0) = ? [pid 10034] <... futex resumed>) = ? [pid 10034] +++ exited with 0 +++ [pid 9998] <... futex resumed>) = ? [pid 9998] +++ exited with 0 +++ [pid 9997] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9997, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=99 /* 0.99 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10110 attached , child_tidptr=0x5555693e0750) = 10110 [pid 10110] set_robust_list(0x5555693e0760, 24) = 0 [pid 10110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10110] setpgid(0, 0) = 0 [pid 10110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10110] write(3, "1000", 4) = 4 [pid 10110] close(3) = 0 [pid 10110] write(1, "executing program\n", 18executing program ) = 18 [pid 10110] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10110] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10040] <... close resumed>) = 0 [pid 10110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10040] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10040] <... futex resumed>) = 1 [pid 10110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10040] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10110] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10024] <... futex resumed>) = 0 [pid 10110] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10024] exit_group(0) = ? [pid 10110] <... mprotect resumed>) = 0 [pid 10040] <... futex resumed>) = ? [pid 10025] <... futex resumed>) = ? [pid 10025] +++ exited with 0 +++ [pid 10110] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10040] +++ exited with 0 +++ [pid 10024] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10024, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=76 /* 0.76 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10110] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5845] <... openat resumed>) = 3 [pid 10110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5845] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 10111 attached ) = 0 [pid 10111] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10110] <... clone3 resumed> => {parent_tid=[10111]}, 88) = 10111 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10112 attached , child_tidptr=0x5555693e0750) = 10112 [pid 10110] rt_sigprocmask(SIG_SETMASK, [], [pid 10111] <... rseq resumed>) = 0 [pid 10111] set_robust_list(0x7ff7dbc929a0, 24 [pid 10110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10110] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10111] <... set_robust_list resumed>) = 0 [pid 10110] <... futex resumed>) = 0 [pid 10112] set_robust_list(0x5555693e0760, 24) = 0 executing program [pid 10112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10110] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10112] <... prctl resumed>) = 0 [pid 10112] setpgid(0, 0) = 0 [pid 10112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10112] write(3, "1000", 4) = 4 [pid 10112] close(3) = 0 [pid 10112] write(1, "executing program\n", 18) = 18 [pid 10112] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10112] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10111] rt_sigprocmask(SIG_SETMASK, [], [pid 10112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10111] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10112] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10112] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10111] memfd_create("syzkaller", 0 [pid 10112] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10111] <... memfd_create resumed>) = 3 [pid 10111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 ./strace-static-x86_64: Process 10113 attached [pid 10112] <... clone3 resumed> => {parent_tid=[10113]}, 88) = 10113 [pid 10107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10113] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10112] rt_sigprocmask(SIG_SETMASK, [], [pid 10113] <... rseq resumed>) = 0 [pid 10112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10113] set_robust_list(0x7ff7dbc929a0, 24 [pid 10112] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10113] <... set_robust_list resumed>) = 0 [pid 10112] <... futex resumed>) = 0 [pid 10113] rt_sigprocmask(SIG_SETMASK, [], [pid 10112] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10113] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10113] memfd_create("syzkaller", 0) = 3 [pid 10113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10107] <... write resumed>) = 16777216 [pid 10107] munmap(0x7ff7d3800000, 138412032 [pid 10106] <... write resumed>) = 16777216 [pid 10107] <... munmap resumed>) = 0 [pid 10106] munmap(0x7ff7d3800000, 138412032 [pid 10107] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10107] ioctl(4, LOOP_SET_FD, 3 [pid 10113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10106] <... munmap resumed>) = 0 [pid 10106] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10106] ioctl(4, LOOP_SET_FD, 3 [pid 10107] <... ioctl resumed>) = 0 [pid 10107] close(3) = 0 [pid 10107] close(4) = 0 [pid 10107] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10107] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10106] <... ioctl resumed>) = 0 [pid 10106] close(3) = 0 [pid 10106] close(4) = 0 [pid 10106] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 373.975694][T10107] loop4: detected capacity change from 0 to 32768 [ 373.984425][T10106] loop1: detected capacity change from 0 to 32768 [ 374.085657][T10107] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 374.094905][T10107] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 374.115517][T10106] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10106] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10109] <... write resumed>) = 16777216 [pid 10109] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10109] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10109] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10109] close(3) = 0 [pid 10109] close(4) = 0 [ 374.151297][T10106] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 374.188229][T10109] loop3: detected capacity change from 0 to 32768 [pid 10109] mkdir("./file1", 0777 [pid 10111] <... write resumed>) = 16777216 [pid 10109] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10109] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10111] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10111] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10106] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10111] <... openat resumed>) = 4 [pid 10111] ioctl(4, LOOP_SET_FD, 3 [pid 10107] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10106] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10106] ioctl(3, LOOP_CLR_FD [pid 10111] <... ioctl resumed>) = 0 [pid 10107] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10106] <... ioctl resumed>) = 0 [pid 10106] close(3 [pid 10107] <... openat resumed>) = 3 [pid 10107] ioctl(3, LOOP_CLR_FD) = 0 [pid 10107] close(3 [ 374.261793][T10106] bcachefs: bch2_fs_get_tree() error: EINVAL [ 374.287118][T10107] bcachefs: bch2_fs_get_tree() error: EINVAL [ 374.300927][T10111] loop0: detected capacity change from 0 to 32768 [pid 10111] close(3) = 0 [pid 10111] close(4) = 0 [pid 10111] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 374.370344][T10109] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 374.379865][T10109] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10111] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10113] <... write resumed>) = 16777216 [ 374.528167][T10111] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 374.553252][T10111] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10113] munmap(0x7ff7d3800000, 138412032 [pid 10106] <... close resumed>) = 0 [pid 10106] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10106] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10104] <... futex resumed>) = 0 [pid 10104] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10106] <... futex resumed>) = 0 [pid 10104] <... futex resumed>) = 1 [pid 10106] creat("./bus", 000 [pid 10104] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10113] <... munmap resumed>) = 0 [pid 10106] <... creat resumed>) = 3 [pid 10113] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10106] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10104] <... futex resumed>) = 0 [pid 10106] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10104] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10104] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10113] <... openat resumed>) = 4 [pid 10109] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10113] ioctl(4, LOOP_SET_FD, 3 [ 374.575345][T10109] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10109] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10113] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10109] <... openat resumed>) = 3 [pid 10113] ioctl(4, LOOP_CLR_FD [pid 10109] ioctl(3, LOOP_CLR_FD [pid 10113] <... ioctl resumed>) = 0 [pid 10109] <... ioctl resumed>) = 0 [pid 10109] close(3 [pid 10113] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10113] close(4) = 0 [pid 10113] close(3 [pid 10104] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10104] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10104] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10143]}, 88) = 10143 [pid 10104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10104] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 10143 attached ) = 0 [pid 10143] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10104] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10143] <... rseq resumed>) = 0 [pid 10107] <... close resumed>) = 0 [pid 10143] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10107] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10143] rt_sigprocmask(SIG_SETMASK, [], [pid 10107] <... futex resumed>) = 1 [pid 10143] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10107] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10143] memfd_create("syzkaller", 0 [pid 10105] <... futex resumed>) = 0 [pid 10143] <... memfd_create resumed>) = 4 [pid 10143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10105] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10143] <... mmap resumed>) = 0x7ff7d3800000 [pid 10107] <... futex resumed>) = 0 [pid 10105] <... futex resumed>) = 1 [pid 10107] creat("./bus", 000 [pid 10105] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10105] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10105] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10105] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10111] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10144 attached [pid 10144] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10105] <... clone3 resumed> => {parent_tid=[10144]}, 88) = 10144 [pid 10144] <... rseq resumed>) = 0 [pid 10105] rt_sigprocmask(SIG_SETMASK, [], [pid 10144] set_robust_list(0x7ff7dbc719a0, 24 [pid 10105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10144] <... set_robust_list resumed>) = 0 [pid 10144] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10105] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10144] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10105] <... futex resumed>) = 0 [pid 10144] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10105] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10144] <... futex resumed>) = 0 [pid 10105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10144] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10105] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10105] <... futex resumed>) = 0 [pid 10144] memfd_create("syzkaller", 0 [pid 10111] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10105] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10111] <... openat resumed>) = 3 [pid 10144] <... memfd_create resumed>) = 4 [pid 10111] ioctl(3, LOOP_CLR_FD [pid 10144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10111] <... ioctl resumed>) = 0 [ 374.868334][T10111] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10144] <... mmap resumed>) = 0x7ff7d3800000 [pid 10111] close(3 [pid 10113] <... close resumed>) = 0 [pid 10113] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10109] <... close resumed>) = 0 [pid 10113] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10112] <... futex resumed>) = 0 [pid 10109] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10112] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10109] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10108] <... futex resumed>) = 0 [pid 10113] <... futex resumed>) = 0 [pid 10112] <... futex resumed>) = 1 [pid 10109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10108] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10113] creat("./bus", 000 [pid 10112] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10109] creat("./bus", 000 [pid 10108] <... futex resumed>) = 0 [pid 10108] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10112] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10108] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10112] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10108] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10112] <... futex resumed>) = 0 [pid 10108] <... futex resumed>) = 0 [pid 10112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10112] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 10108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 10145 attached ) = 0x7ff7dbc51000 [pid 10145] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10112] <... clone3 resumed> => {parent_tid=[10145]}, 88) = 10145 [pid 10108] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10145] <... rseq resumed>) = 0 [pid 10145] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10108] <... mprotect resumed>) = 0 [pid 10145] rt_sigprocmask(SIG_SETMASK, [], [pid 10108] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10145] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10145] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10108] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10112] rt_sigprocmask(SIG_SETMASK, [], [pid 10108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 10112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10112] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 ./strace-static-x86_64: Process 10146 attached [pid 10145] <... futex resumed>) = 0 [pid 10108] <... clone3 resumed> => {parent_tid=[10146]}, 88) = 10146 [pid 10146] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10145] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10112] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10108] rt_sigprocmask(SIG_SETMASK, [], [pid 10145] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10146] <... rseq resumed>) = 0 [pid 10145] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10108] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10146] set_robust_list(0x7ff7dbc719a0, 24 [pid 10145] <... futex resumed>) = 1 [pid 10112] <... futex resumed>) = 0 [pid 10108] <... futex resumed>) = 0 [pid 10112] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10108] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10112] <... futex resumed>) = 0 [pid 10146] <... set_robust_list resumed>) = 0 [pid 10112] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10146] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10145] memfd_create("syzkaller", 0 [pid 10146] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10146] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10145] <... memfd_create resumed>) = 4 [pid 10108] <... futex resumed>) = 0 [pid 10146] memfd_create("syzkaller", 0 [pid 10145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10108] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10146] <... memfd_create resumed>) = 4 [pid 10145] <... mmap resumed>) = 0x7ff7d3800000 [pid 10108] <... futex resumed>) = 0 [pid 10146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10108] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10146] <... mmap resumed>) = 0x7ff7d3800000 [pid 10143] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10111] <... close resumed>) = 0 [pid 10111] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10110] <... futex resumed>) = 0 [pid 10111] creat("./bus", 000 [pid 10110] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10110] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10110] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10110] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10147]}, 88) = 10147 [pid 10110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10110] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10110] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10147 attached [pid 10147] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10147] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10147] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10147] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10147] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10110] <... futex resumed>) = 0 [pid 10147] memfd_create("syzkaller", 0 [pid 10110] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10147] <... memfd_create resumed>) = 4 [pid 10110] <... futex resumed>) = 0 [pid 10110] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10144] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10146] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10145] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10106] <... write resumed>) = 16776704 [pid 10106] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10106] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10143] <... write resumed>) = 16777216 [pid 10143] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10143] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10143] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10143] close(4) = 0 [pid 10143] close(5 [pid 10147] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10143] <... close resumed>) = 0 [pid 10143] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 375.669708][T10143] loop1: detected capacity change from 0 to 32768 [ 375.710852][T10143] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10143) [pid 10143] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10144] <... write resumed>) = 16777216 [pid 10144] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10144] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 375.795757][T10143] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 375.826457][T10143] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 10144] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10144] close(4) = 0 [pid 10144] close(5) = 0 [pid 10144] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 375.873453][T10144] loop4: detected capacity change from 0 to 32768 [pid 10144] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10145] <... write resumed>) = 16777216 [pid 10145] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10145] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10145] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10145] ioctl(5, LOOP_CLR_FD) = 0 [pid 10145] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10145] close(5) = 0 [ 375.928807][T10144] BTRFS: device /dev/loop4 (7:4) using temp-fsid 0d5bd5f0-0a43-4c7f-bfd1-168ad4eab4e3 [ 375.958585][T10144] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10144) [ 376.053200][T10144] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10145] close(4 [pid 10147] <... write resumed>) = 16777216 [pid 10146] <... write resumed>) = 16777216 [pid 10147] munmap(0x7ff7d3800000, 138412032 [pid 10146] munmap(0x7ff7d3800000, 138412032 [pid 10147] <... munmap resumed>) = 0 [ 376.116705][T10144] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 376.129376][T10143] BTRFS info (device loop1): rebuilding free space tree [pid 10147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 10147] ioctl(5, LOOP_SET_FD, 4 [pid 10146] <... munmap resumed>) = 0 [pid 10113] <... creat resumed>) = 3 [pid 10109] <... creat resumed>) = 3 [pid 10111] <... creat resumed>) = 3 [pid 10109] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10111] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10113] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10111] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10109] <... futex resumed>) = 0 [pid 10109] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10146] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 10147] <... ioctl resumed>) = 0 [pid 10113] <... futex resumed>) = 0 [pid 10107] <... creat resumed>) = 3 [pid 10113] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10107] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10107] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10147] close(4 [pid 10146] ioctl(5, LOOP_SET_FD, 4 [pid 10147] <... close resumed>) = 0 [pid 10146] <... ioctl resumed>) = 0 [pid 10147] close(5) = 0 [ 376.169614][T10147] loop0: detected capacity change from 0 to 32768 [ 376.182215][T10143] BTRFS info (device loop1): disabling free space tree [ 376.198566][T10143] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 376.210310][T10146] loop3: detected capacity change from 0 to 32768 [pid 10147] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10147] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10146] close(4) = 0 [pid 10146] close(5) = 0 [pid 10146] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 376.241613][T10147] BTRFS: device /dev/loop0 (7:0) using temp-fsid b8986c9e-8d78-4a72-a00d-1dd03b54d514 [ 376.258142][T10143] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 376.278864][T10144] BTRFS info (device loop4): rebuilding free space tree [ 376.306864][T10147] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10147) [pid 10146] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10145] <... close resumed>) = 0 [ 376.353340][T10144] BTRFS info (device loop4): disabling free space tree [ 376.365640][T10144] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 376.382180][T10143] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 376.382434][T10144] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10145] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10145] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10112] <... futex resumed>) = 0 [pid 10112] exit_group(0) = ? [pid 10145] <... futex resumed>) = ? [pid 10113] <... futex resumed>) = ? [ 376.393458][T10146] BTRFS: device /dev/loop3 (7:3) using temp-fsid c0778f07-3895-43b3-b9b7-fa6221a77a8d [ 376.411149][T10147] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 376.413446][T10146] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10146) [ 376.424211][T10147] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 10145] +++ exited with 0 +++ [pid 10113] +++ exited with 0 +++ [pid 10112] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10112, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=69 /* 0.69 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10180 attached , child_tidptr=0x5555693e0750) = 10180 [pid 10180] set_robust_list(0x5555693e0760, 24) = 0 [pid 10180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10180] setpgid(0, 0) = 0 [pid 10180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10143] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10180] write(3, "1000", 4 [pid 10143] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10180] <... write resumed>) = 4 [pid 10143] <... openat resumed>) = 4 [pid 10180] close(3 [pid 10143] ioctl(4, LOOP_CLR_FD [pid 10180] <... close resumed>) = 0 [ 376.450547][T10144] BTRFS info (device loop4): last unmount of filesystem 0d5bd5f0-0a43-4c7f-bfd1-168ad4eab4e3 executing program [pid 10180] write(1, "executing program\n", 18 [pid 10143] <... ioctl resumed>) = 0 [pid 10180] <... write resumed>) = 18 [pid 10143] close(4 [pid 10180] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10180] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10180] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10191]}, 88) = 10191 ./strace-static-x86_64: Process 10191 attached [pid 10180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10180] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10180] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10191] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10191] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10191] memfd_create("syzkaller", 0) = 3 [ 376.534754][T10146] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10144] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10144] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10144] ioctl(4, LOOP_CLR_FD) = 0 [ 376.596621][T10146] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 376.688333][T10147] BTRFS info (device loop0): rebuilding free space tree [pid 10144] close(4 [pid 10143] <... close resumed>) = 0 [pid 10143] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10143] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10104] <... futex resumed>) = 0 [ 376.798321][T10147] BTRFS info (device loop0): disabling free space tree [ 376.809230][T10147] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10104] exit_group(0 [pid 10143] <... futex resumed>) = ? [pid 10106] <... futex resumed>) = ? [pid 10104] <... exit_group resumed>) = ? [pid 10143] +++ exited with 0 +++ [pid 10106] +++ exited with 0 +++ [pid 10104] +++ exited with 0 +++ [ 376.860429][T10146] BTRFS info (device loop3): rebuilding free space tree [ 376.868021][T10147] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 376.883526][T10146] BTRFS info (device loop3): disabling free space tree [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10104, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=122 /* 1.22 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10214 ./strace-static-x86_64: Process 10214 attached [pid 10214] set_robust_list(0x5555693e0760, 24) = 0 [pid 10214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10214] setpgid(0, 0) = 0 [pid 10214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10214] write(3, "1000", 4) = 4 [pid 10214] close(3) = 0 [pid 10214] write(1, "executing program\n", 18executing program ) = 18 [ 376.919070][T10146] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 376.956708][T10146] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10214] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10214] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10214] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10214] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10214] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10215 attached => {parent_tid=[10215]}, 88) = 10215 [pid 10215] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10214] rt_sigprocmask(SIG_SETMASK, [], [pid 10215] <... rseq resumed>) = 0 [pid 10214] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10215] set_robust_list(0x7ff7dbc929a0, 24 [pid 10214] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10215] <... set_robust_list resumed>) = 0 [pid 10214] <... futex resumed>) = 0 [pid 10215] rt_sigprocmask(SIG_SETMASK, [], [pid 10214] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10215] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10215] memfd_create("syzkaller", 0) = 3 [ 376.991330][T10147] BTRFS info (device loop0): last unmount of filesystem b8986c9e-8d78-4a72-a00d-1dd03b54d514 [ 377.003394][T10146] BTRFS info (device loop3): last unmount of filesystem c0778f07-3895-43b3-b9b7-fa6221a77a8d [pid 10215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10144] <... close resumed>) = 0 [pid 10144] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10144] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10147] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10146] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10105] <... futex resumed>) = 0 [pid 10146] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10105] exit_group(0 [pid 10146] <... openat resumed>) = 4 [pid 10144] <... futex resumed>) = ? [pid 10107] <... futex resumed>) = ? [pid 10105] <... exit_group resumed>) = ? [pid 10144] +++ exited with 0 +++ [pid 10107] +++ exited with 0 +++ [pid 10105] +++ exited with 0 +++ [pid 10146] ioctl(4, LOOP_CLR_FD [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10105, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=97 /* 0.97 s */} --- [pid 10146] <... ioctl resumed>) = 0 [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 10146] close(4 [pid 10147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10147] ioctl(4, LOOP_CLR_FD [pid 10191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10147] <... ioctl resumed>) = 0 [pid 5850] <... restart_syscall resumed>) = 0 [pid 10147] close(4 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10216 attached , child_tidptr=0x5555693e0750) = 10216 [pid 10216] set_robust_list(0x5555693e0760, 24) = 0 [pid 10216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10216] setpgid(0, 0) = 0 [pid 10216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10216] write(3, "1000", 4) = 4 [pid 10216] close(3executing program ) = 0 [pid 10216] write(1, "executing program\n", 18) = 18 [pid 10216] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10216] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10216] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10217 attached => {parent_tid=[10217]}, 88) = 10217 [pid 10216] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10216] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10216] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10217] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10217] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10217] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10217] memfd_create("syzkaller", 0) = 3 [pid 10217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10147] <... close resumed>) = 0 [pid 10147] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10110] <... futex resumed>) = 0 [pid 10147] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10110] exit_group(0 [pid 10147] <... futex resumed>) = ? [pid 10111] <... futex resumed>) = ? [pid 10110] <... exit_group resumed>) = ? [pid 10147] +++ exited with 0 +++ [pid 10111] +++ exited with 0 +++ [pid 10110] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10110, si_uid=0, si_status=0, si_utime=24 /* 0.24 s */, si_stime=83 /* 0.83 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 10146] <... close resumed>) = 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10218 [pid 10146] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10108] <... futex resumed>) = 0 [pid 10108] exit_group(0) = ? [pid 10146] <... futex resumed>) = ? [pid 10146] +++ exited with 0 +++ [pid 10109] <... futex resumed>) = ? [pid 10109] +++ exited with 0 +++ [pid 10108] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10108, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=88 /* 0.88 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 10218 attached [pid 10218] set_robust_list(0x5555693e0760, 24 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10218] <... set_robust_list resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 10218] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] close(3) = 0 [pid 10218] <... prctl resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10218] setpgid(0, 0./strace-static-x86_64: Process 10219 attached ) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 10219 [pid 10218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10218] write(3, "1000", 4) = 4 executing program [pid 10219] set_robust_list(0x5555693e0760, 24 [pid 10218] close(3 [pid 10219] <... set_robust_list resumed>) = 0 [pid 10218] <... close resumed>) = 0 [pid 10219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10218] write(1, "executing program\n", 18 [pid 10219] setpgid(0, 0) = 0 [pid 10218] <... write resumed>) = 18 [pid 10219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10218] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 executing program [pid 10219] <... openat resumed>) = 3 [pid 10219] write(3, "1000", 4) = 4 [pid 10219] close(3) = 0 [pid 10219] write(1, "executing program\n", 18) = 18 [pid 10219] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10219] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10219] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10219] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10219] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10219] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10218] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, ./strace-static-x86_64: Process 10220 attached [pid 10219] <... clone3 resumed> => {parent_tid=[10220]}, 88) = 10220 [pid 10219] rt_sigprocmask(SIG_SETMASK, [], [pid 10220] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10219] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10220] <... rseq resumed>) = 0 [pid 10219] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10220] set_robust_list(0x7ff7dbc929a0, 24 [pid 10219] <... futex resumed>) = 0 [pid 10220] <... set_robust_list resumed>) = 0 [pid 10219] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10220] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10220] memfd_create("syzkaller", 0) = 3 [pid 10218] <... rt_sigaction resumed>NULL, 8) = 0 [pid 10218] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10218] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10218] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10191] <... write resumed>) = 16777216 [pid 10218] <... mprotect resumed>) = 0 [pid 10218] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10218] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10221 attached [pid 10221] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10218] <... clone3 resumed> => {parent_tid=[10221]}, 88) = 10221 [pid 10221] <... rseq resumed>) = 0 [pid 10218] rt_sigprocmask(SIG_SETMASK, [], [pid 10221] set_robust_list(0x7ff7dbc929a0, 24 [pid 10218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10221] <... set_robust_list resumed>) = 0 [pid 10218] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10221] rt_sigprocmask(SIG_SETMASK, [], [pid 10218] <... futex resumed>) = 0 [pid 10221] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10218] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10221] memfd_create("syzkaller", 0) = 3 [pid 10221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10191] munmap(0x7ff7d3800000, 138412032 [pid 10221] <... mmap resumed>) = 0x7ff7d3800000 [pid 10191] <... munmap resumed>) = 0 [pid 10191] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10191] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10191] ioctl(4, LOOP_CLR_FD) = 0 [pid 10191] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10191] close(4) = 0 [pid 10191] close(3 [pid 10217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10215] <... write resumed>) = 16777216 [pid 10215] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10215] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10215] ioctl(4, LOOP_SET_FD, 3 [pid 10191] <... close resumed>) = 0 [pid 10191] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10191] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10180] <... futex resumed>) = 0 [pid 10180] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10191] <... futex resumed>) = 0 [pid 10180] <... futex resumed>) = 1 [pid 10191] creat("./bus", 000 [pid 10180] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10191] <... creat resumed>) = 3 [pid 10215] <... ioctl resumed>) = 0 [pid 10215] close(3 [pid 10191] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10215] <... close resumed>) = 0 [pid 10191] <... futex resumed>) = 1 [pid 10180] <... futex resumed>) = 0 [pid 10215] close(4 [pid 10191] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10180] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10215] <... close resumed>) = 0 [pid 10180] <... futex resumed>) = 0 [pid 10180] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10215] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 377.874315][T10215] loop1: detected capacity change from 0 to 32768 [pid 10215] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10180] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10180] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10180] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10228]}, 88) = 10228 [pid 10180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10180] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 10228 attached ) = 0 [pid 10228] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10180] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10228] <... rseq resumed>) = 0 [pid 10221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10228] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10228] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10228] memfd_create("syzkaller", 0) = 4 [pid 10228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 378.085101][T10215] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 378.127796][T10215] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10217] <... write resumed>) = 16777216 [pid 10217] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10217] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10217] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10217] close(3) = 0 [pid 10217] close(4) = 0 [pid 10217] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 378.272512][T10217] loop4: detected capacity change from 0 to 32768 [pid 10217] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10215] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10215] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10215] ioctl(3, LOOP_CLR_FD) = 0 [ 378.373084][T10217] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 378.399143][T10217] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 378.408996][T10215] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10215] close(3 [pid 10221] <... write resumed>) = 16777216 [pid 10221] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10220] <... write resumed>) = 16777216 [pid 10228] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10221] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10220] munmap(0x7ff7d3800000, 138412032 [pid 10221] <... openat resumed>) = 4 [pid 10221] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10221] close(3 [pid 10220] <... munmap resumed>) = 0 [pid 10221] <... close resumed>) = 0 [pid 10221] close(4) = 0 [pid 10221] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10220] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10221] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10220] <... openat resumed>) = 4 [pid 10217] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10220] ioctl(4, LOOP_SET_FD, 3 [pid 10217] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 378.609639][T10221] loop0: detected capacity change from 0 to 32768 [ 378.623333][T10217] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10217] ioctl(3, LOOP_CLR_FD) = 0 [pid 10217] close(3 [pid 10220] <... ioctl resumed>) = 0 [pid 10220] close(3) = 0 [pid 10220] close(4) = 0 [pid 10220] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 378.666394][T10220] loop3: detected capacity change from 0 to 32768 [pid 10220] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10215] <... close resumed>) = 0 [pid 10215] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10214] <... futex resumed>) = 0 [pid 10215] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10214] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10214] <... futex resumed>) = 0 [pid 10215] creat("./bus", 000 [pid 10214] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10214] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10214] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10214] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10249 attached => {parent_tid=[10249]}, 88) = 10249 [pid 10214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10214] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 378.787038][T10221] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 378.797910][T10221] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10214] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10249] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10249] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10249] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10249] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10214] <... futex resumed>) = 0 [pid 10249] memfd_create("syzkaller", 0 [pid 10214] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10249] <... memfd_create resumed>) = 4 [pid 10214] <... futex resumed>) = 0 [pid 10249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10214] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10249] <... mmap resumed>) = 0x7ff7d3800000 [ 378.918189][T10220] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 378.927562][T10220] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10217] <... close resumed>) = 0 [pid 10217] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10216] <... futex resumed>) = 0 [pid 10217] creat("./bus", 000 [pid 10216] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10191] <... write resumed>) = 16776704 [pid 10216] <... futex resumed>) = 0 [pid 10191] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10216] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10191] <... futex resumed>) = 0 [pid 10191] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10216] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10216] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10216] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10252 attached [pid 10228] <... write resumed>) = 16777216 [pid 10221] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10221] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10216] <... clone3 resumed> => {parent_tid=[10252]}, 88) = 10252 [pid 10221] <... openat resumed>) = 3 [pid 10216] rt_sigprocmask(SIG_SETMASK, [], [pid 10221] ioctl(3, LOOP_CLR_FD) = 0 [pid 10216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10221] close(3 [pid 10216] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10252] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10216] <... futex resumed>) = 0 [pid 10252] <... rseq resumed>) = 0 [pid 10216] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10252] set_robust_list(0x7ff7dbc719a0, 24) = 0 [ 379.053240][T10221] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10252] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10252] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10228] munmap(0x7ff7d3800000, 138412032 [pid 10252] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10252] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10216] <... futex resumed>) = 0 [pid 10216] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10252] memfd_create("syzkaller", 0 [pid 10220] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10216] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10252] <... memfd_create resumed>) = 4 [pid 10252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10228] <... munmap resumed>) = 0 [pid 10220] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10252] <... mmap resumed>) = 0x7ff7d3800000 [pid 10220] <... openat resumed>) = 3 [ 379.116566][T10220] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10220] ioctl(3, LOOP_CLR_FD [pid 10228] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10220] <... ioctl resumed>) = 0 [pid 10228] <... openat resumed>) = 5 [pid 10220] close(3 [pid 10228] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10228] ioctl(5, LOOP_CLR_FD) = 0 [pid 10228] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10228] close(5) = 0 [pid 10228] close(4 [pid 10217] <... creat resumed>) = 3 [pid 10217] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10217] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10215] <... creat resumed>) = 3 [pid 10215] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10215] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10221] <... close resumed>) = 0 [pid 10221] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10218] <... futex resumed>) = 0 [pid 10221] creat("./bus", 000 [pid 10218] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10221] <... creat resumed>) = 3 [pid 10218] <... futex resumed>) = 0 [pid 10221] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10218] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10221] <... futex resumed>) = 0 [pid 10218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10221] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10218] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10218] <... futex resumed>) = 0 [pid 10249] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10221] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10218] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10228] <... close resumed>) = 0 [pid 10228] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10180] <... futex resumed>) = 0 [pid 10228] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10180] exit_group(0 [pid 10228] <... futex resumed>) = ? [pid 10180] <... exit_group resumed>) = ? [pid 10220] <... close resumed>) = 0 [pid 10191] <... futex resumed>) = ? [pid 10191] +++ exited with 0 +++ [pid 10220] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10219] <... futex resumed>) = 0 [pid 10219] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10220] creat("./bus", 000 [pid 10219] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10218] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10228] +++ exited with 0 +++ [pid 10218] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10180] +++ exited with 0 +++ [pid 10218] <... futex resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10180, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=106 /* 1.06 s */} --- [pid 10218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 10218] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10218] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10218] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10218] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10253 attached [pid 10253] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10218] <... clone3 resumed> => {parent_tid=[10253]}, 88) = 10253 [pid 5845] <... restart_syscall resumed>) = 0 [pid 10253] <... rseq resumed>) = 0 [pid 10252] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10219] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10218] rt_sigprocmask(SIG_SETMASK, [], [pid 10253] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10218] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10253] rt_sigprocmask(SIG_SETMASK, [], [pid 10219] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10253] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10219] <... futex resumed>) = 0 [pid 10218] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10253] memfd_create("syzkaller", 0 [pid 10219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10218] <... futex resumed>) = 0 [pid 5845] <... openat resumed>) = 3 [pid 10253] <... memfd_create resumed>) = 4 [pid 10219] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10218] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5845] ioctl(3, LOOP_CLR_FD [pid 10253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10219] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 5845] <... ioctl resumed>) = 0 [pid 10253] <... mmap resumed>) = 0x7ff7d3800000 [pid 10219] <... mprotect resumed>) = 0 [pid 5845] close(3 [pid 10219] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5845] <... close resumed>) = 0 [pid 10219] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10254]}, 88) = 10254 [pid 10219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10219] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10219] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10255 attached , child_tidptr=0x5555693e0750) = 10255 ./strace-static-x86_64: Process 10254 attached [pid 10255] set_robust_list(0x5555693e0760, 24) = 0 [pid 10254] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053executing program [pid 10255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10254] <... rseq resumed>) = 0 [pid 10255] setpgid(0, 0) = 0 [pid 10255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10255] write(3, "1000", 4) = 4 [pid 10255] close(3) = 0 [pid 10255] write(1, "executing program\n", 18) = 18 [pid 10255] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10255] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10254] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10254] rt_sigprocmask(SIG_SETMASK, [], [pid 10255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10254] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10255] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10254] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10255] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10255] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10254] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10255] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10254] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 10256 attached [pid 10256] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10255] <... clone3 resumed> => {parent_tid=[10256]}, 88) = 10256 [pid 10254] <... futex resumed>) = 1 [pid 10219] <... futex resumed>) = 0 [pid 10255] rt_sigprocmask(SIG_SETMASK, [], [pid 10254] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10256] <... rseq resumed>) = 0 [pid 10255] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10219] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10256] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10256] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10256] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10255] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10254] <... futex resumed>) = 0 [pid 10219] <... futex resumed>) = 1 [pid 10256] <... futex resumed>) = 0 [pid 10255] <... futex resumed>) = 1 [pid 10219] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10256] memfd_create("syzkaller", 0 [pid 10255] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10256] <... memfd_create resumed>) = 3 [pid 10256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10254] memfd_create("syzkaller", 0) = 4 [pid 10254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10249] <... write resumed>) = 16777216 [pid 10249] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10249] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10249] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10249] close(4) = 0 [pid 10249] close(5 [pid 10253] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10249] <... close resumed>) = 0 [pid 10252] <... write resumed>) = 16777216 [pid 10252] munmap(0x7ff7d3800000, 138412032 [pid 10249] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 379.977979][T10249] loop1: detected capacity change from 0 to 32768 [pid 10254] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10249] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10256] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10252] <... munmap resumed>) = 0 [pid 10252] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 380.049898][T10249] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10249) [ 380.056239][T10252] loop4: detected capacity change from 0 to 32768 [pid 10252] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10252] close(4) = 0 [pid 10252] close(5) = 0 [pid 10252] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 380.105247][T10249] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 380.116124][T10252] BTRFS: device /dev/loop4 (7:4) using temp-fsid 74af5044-4373-479f-8924-84ba400a7d47 [ 380.147779][T10252] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10252) [ 380.162909][T10249] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 380.238968][T10252] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 380.288000][T10252] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 10252] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10254] <... write resumed>) = 16777216 [ 380.441640][T10249] BTRFS info (device loop1): rebuilding free space tree [pid 10254] munmap(0x7ff7d3800000, 138412032 [pid 10253] <... write resumed>) = 16777216 [pid 10254] <... munmap resumed>) = 0 [pid 10254] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10253] munmap(0x7ff7d3800000, 138412032 [pid 10254] <... openat resumed>) = 5 [pid 10254] ioctl(5, LOOP_SET_FD, 4 [pid 10221] <... write resumed>) = 16776704 [ 380.497833][T10249] BTRFS info (device loop1): disabling free space tree [ 380.504803][T10249] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 380.526575][T10254] loop3: detected capacity change from 0 to 32768 [pid 10221] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10256] <... write resumed>) = 16777216 [pid 10254] <... ioctl resumed>) = 0 [pid 10253] <... munmap resumed>) = 0 [pid 10221] <... futex resumed>) = 0 [pid 10256] munmap(0x7ff7d3800000, 138412032 [pid 10254] close(4 [pid 10253] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10221] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10254] <... close resumed>) = 0 [pid 10253] <... openat resumed>) = 5 [pid 10254] close(5) = 0 [ 380.561036][T10249] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 380.578003][T10252] BTRFS info (device loop4): rebuilding free space tree [pid 10253] ioctl(5, LOOP_SET_FD, 4 [pid 10256] <... munmap resumed>) = 0 [pid 10254] mkdir("./bus", 0777 [pid 10253] <... ioctl resumed>) = 0 [pid 10254] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10253] close(4 [pid 10254] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10256] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10253] <... close resumed>) = 0 [ 380.608327][T10253] loop0: detected capacity change from 0 to 32768 [ 380.613419][T10252] BTRFS info (device loop4): disabling free space tree [pid 10256] <... openat resumed>) = 4 [pid 10253] close(5) = 0 [pid 10256] ioctl(4, LOOP_SET_FD, 3 [pid 10253] mkdir("./bus", 0777 [pid 10256] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10253] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10256] ioctl(4, LOOP_CLR_FD [pid 10253] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10256] <... ioctl resumed>) = 0 [pid 10256] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10256] close(4) = 0 [ 380.648571][T10252] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 380.649070][T10254] BTRFS: device /dev/loop3 (7:3) using temp-fsid 06bdcff9-57a2-4c45-ab66-f07a23599502 [ 380.687808][T10252] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 380.738571][T10254] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10254) [ 380.778713][T10253] BTRFS: device /dev/loop0 (7:0) using temp-fsid debef3ff-984d-430a-ac6d-fb21c6f67d70 [ 380.794559][T10254] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 380.808295][T10253] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10253) [ 380.837913][T10254] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 380.865596][T10253] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10256] close(3) = 0 [pid 10256] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10255] <... futex resumed>) = 0 [pid 10255] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10255] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 380.900145][T10253] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 10256] creat("./bus", 000) = 3 [pid 10255] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10255] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10256] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10255] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10256] <... futex resumed>) = 0 [pid 10255] <... mprotect resumed>) = 0 [pid 10256] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10310 attached => {parent_tid=[10310]}, 88) = 10310 [pid 10255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10255] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10255] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10310] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10310] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10310] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10310] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10220] <... creat resumed>) = 3 [pid 10220] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 380.996074][T10249] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 381.006663][T10252] BTRFS info (device loop4): last unmount of filesystem 74af5044-4373-479f-8924-84ba400a7d47 [pid 10220] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10255] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10255] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10256] <... futex resumed>) = 0 [pid 10255] <... futex resumed>) = 1 [pid 10256] memfd_create("syzkaller", 0 [pid 10255] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10256] <... memfd_create resumed>) = 4 [pid 10256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 381.046285][T10254] BTRFS info (device loop3): rebuilding free space tree [pid 10252] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 381.144444][T10254] BTRFS info (device loop3): disabling free space tree [pid 10249] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10252] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10249] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10252] <... openat resumed>) = 4 [pid 10249] <... openat resumed>) = 4 [pid 10252] ioctl(4, LOOP_CLR_FD [pid 10249] ioctl(4, LOOP_CLR_FD [pid 10252] <... ioctl resumed>) = 0 [pid 10249] <... ioctl resumed>) = 0 [pid 10249] close(4 [ 381.184750][T10253] BTRFS info (device loop0): rebuilding free space tree [ 381.214376][T10254] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 381.267687][T10254] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 381.292039][T10253] BTRFS info (device loop0): disabling free space tree [ 381.327799][T10253] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 381.337524][T10253] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10252] close(4) = 0 [pid 10252] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10216] <... futex resumed>) = 0 [pid 10252] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10216] exit_group(0 [pid 10252] <... futex resumed>) = ? [pid 10217] <... futex resumed>) = ? [pid 10216] <... exit_group resumed>) = ? [pid 10217] +++ exited with 0 +++ [pid 10249] <... close resumed>) = 0 [pid 10249] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10214] <... futex resumed>) = 0 [pid 10249] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10214] exit_group(0 [pid 10249] <... futex resumed>) = ? [pid 10215] <... futex resumed>) = ? [pid 10214] <... exit_group resumed>) = ? [pid 10215] +++ exited with 0 +++ [pid 10256] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10310] <... write resumed>) = 16776704 [pid 10310] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 381.665281][T10254] BTRFS info (device loop3): last unmount of filesystem 06bdcff9-57a2-4c45-ab66-f07a23599502 [ 381.677970][T10253] BTRFS info (device loop0): last unmount of filesystem debef3ff-984d-430a-ac6d-fb21c6f67d70 [pid 10310] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10254] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10254] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10254] ioctl(4, LOOP_CLR_FD) = 0 [pid 10254] close(4 [pid 10253] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10253] ioctl(4, LOOP_CLR_FD) = 0 [pid 10253] close(4 [pid 10252] +++ exited with 0 +++ [pid 10249] +++ exited with 0 +++ [pid 10216] +++ exited with 0 +++ [pid 10214] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10216, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=101 /* 1.01 s */} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10214, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=101 /* 1.01 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5850] <... openat resumed>) = 3 [pid 5844] <... openat resumed>) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5850] close(3 [pid 5844] close(3 [pid 5850] <... close resumed>) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10323 attached ./strace-static-x86_64: Process 10322 attached [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 10322 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 10323 [pid 10322] set_robust_list(0x5555693e0760, 24) = 0 [pid 10323] set_robust_list(0x5555693e0760, 24 [pid 10322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10323] <... set_robust_list resumed>) = 0 [pid 10322] <... prctl resumed>) = 0 [pid 10323] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10322] setpgid(0, 0) = 0 [pid 10322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10323] <... prctl resumed>) = 0 [pid 10322] write(3, "1000", 4 [pid 10323] setpgid(0, 0) = 0 [pid 10323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10322] <... write resumed>) = 4 [pid 10322] close(3executing program ) = 0 [pid 10322] write(1, "executing program\n", 18) = 18 [pid 10323] <... openat resumed>) = 3 [pid 10322] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10322] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10322] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10323] write(3, "1000", 4 [pid 10322] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10322] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10322] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10323] <... write resumed>) = 4 [pid 10323] close(3) = 0 [pid 10322] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}executing program ./strace-static-x86_64: Process 10324 attached [pid 10323] write(1, "executing program\n", 18) = 18 [pid 10322] <... clone3 resumed> => {parent_tid=[10324]}, 88) = 10324 [pid 10324] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10322] rt_sigprocmask(SIG_SETMASK, [], [pid 10324] <... rseq resumed>) = 0 [pid 10322] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10324] set_robust_list(0x7ff7dbc929a0, 24 [pid 10322] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10324] <... set_robust_list resumed>) = 0 [pid 10322] <... futex resumed>) = 0 [pid 10324] rt_sigprocmask(SIG_SETMASK, [], [pid 10322] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10324] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10324] memfd_create("syzkaller", 0) = 3 [pid 10324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10323] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10323] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10323] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10323] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10323] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10323] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10325]}, 88) = 10325 ./strace-static-x86_64: Process 10325 attached [pid 10323] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10325] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10323] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10325] <... rseq resumed>) = 0 [pid 10323] <... futex resumed>) = 0 [pid 10325] set_robust_list(0x7ff7dbc929a0, 24 [pid 10323] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10325] <... set_robust_list resumed>) = 0 [pid 10325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10325] memfd_create("syzkaller", 0) = 3 [pid 10325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10254] <... close resumed>) = 0 [pid 10254] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10219] <... futex resumed>) = 0 [pid 10253] <... close resumed>) = 0 [pid 10254] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10219] exit_group(0 [pid 10254] <... futex resumed>) = ? [pid 10253] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10220] <... futex resumed>) = ? [pid 10219] <... exit_group resumed>) = ? [pid 10254] +++ exited with 0 +++ [pid 10253] <... futex resumed>) = 1 [pid 10220] +++ exited with 0 +++ [pid 10219] +++ exited with 0 +++ [pid 10218] <... futex resumed>) = 0 [pid 10253] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10218] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10219, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=98 /* 0.98 s */} --- [pid 10253] <... futex resumed>) = ? [pid 10221] <... futex resumed>) = ? [pid 10218] <... exit_group resumed>) = ? [pid 10253] +++ exited with 0 +++ [pid 10221] +++ exited with 0 +++ [pid 10256] <... write resumed>) = 16777216 [pid 10256] munmap(0x7ff7d3800000, 138412032 [pid 10218] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10218, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=122 /* 1.22 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5847] ioctl(3, LOOP_CLR_FD [pid 5843] <... openat resumed>) = 3 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] ioctl(3, LOOP_CLR_FD [pid 5847] close(3) = 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] close(3./strace-static-x86_64: Process 10326 attached ) = 0 [pid 10326] set_robust_list(0x5555693e0760, 24 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 10326 [pid 10326] <... set_robust_list resumed>) = 0 [pid 10326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10326] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 10327 attached [pid 10326] setpgid(0, 0) = 0 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 10327 [pid 10326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10327] set_robust_list(0x5555693e0760, 24) = 0 [pid 10326] <... openat resumed>) = 3 [pid 10327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10326] write(3, "1000", 4) = 4 [pid 10326] close(3executing program ) = 0 [pid 10327] <... prctl resumed>) = 0 [pid 10326] write(1, "executing program\n", 18 [pid 10327] setpgid(0, 0 [pid 10326] <... write resumed>) = 18 [pid 10327] <... setpgid resumed>) = 0 [pid 10327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10326] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10256] <... munmap resumed>) = 0 [pid 10326] <... futex resumed>) = 0 [pid 10327] <... openat resumed>) = 3 [pid 10326] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 10327] write(3, "1000", 4 [pid 10326] <... rt_sigaction resumed>NULL, 8) = 0 [pid 10327] <... write resumed>) = 4 [pid 10326] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], executing program [pid 10327] close(3 [pid 10326] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10256] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10327] <... close resumed>) = 0 [pid 10326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10327] write(1, "executing program\n", 18) = 18 [pid 10326] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10256] <... openat resumed>) = 5 [pid 10327] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10326] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10327] <... futex resumed>) = 0 [pid 10256] ioctl(5, LOOP_SET_FD, 4 [pid 10327] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 10326] <... mprotect resumed>) = 0 [pid 10256] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10327] <... rt_sigaction resumed>NULL, 8) = 0 [pid 10256] ioctl(5, LOOP_CLR_FD [pid 10327] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10326] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10256] <... ioctl resumed>) = 0 [pid 10327] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10326] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10327] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10326] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10328 attached [pid 10327] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10328] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10327] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10326] <... clone3 resumed> => {parent_tid=[10328]}, 88) = 10328 [pid 10256] ioctl(5, LOOP_SET_FD, 4 [pid 10326] rt_sigprocmask(SIG_SETMASK, [], [pid 10256] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10328] <... rseq resumed>) = 0 [pid 10327] <... mprotect resumed>) = 0 [pid 10256] close(5 [pid 10328] set_robust_list(0x7ff7dbc929a0, 24 [pid 10327] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10256] <... close resumed>) = 0 [pid 10328] <... set_robust_list resumed>) = 0 [pid 10327] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10256] close(4 [pid 10328] rt_sigprocmask(SIG_SETMASK, [], [pid 10327] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10326] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10328] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10326] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 10329 attached [pid 10329] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10329] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10327] <... clone3 resumed> => {parent_tid=[10329]}, 88) = 10329 [pid 10326] <... futex resumed>) = 0 [pid 10329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10329] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10327] rt_sigprocmask(SIG_SETMASK, [], [pid 10326] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10327] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10327] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10328] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10327] <... futex resumed>) = 1 [pid 10329] <... futex resumed>) = 0 [pid 10327] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10329] memfd_create("syzkaller", 0) = 3 [pid 10328] memfd_create("syzkaller", 0) = 3 [pid 10328] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10328] <... mmap resumed>) = 0x7ff7d3800000 [pid 10329] <... mmap resumed>) = 0x7ff7d3800000 [pid 10324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10256] <... close resumed>) = 0 [pid 10256] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10255] <... futex resumed>) = 0 [pid 10256] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10255] exit_group(0 [pid 10256] <... futex resumed>) = ? [pid 10255] <... exit_group resumed>) = ? [pid 10310] <... futex resumed>) = ? [pid 10256] +++ exited with 0 +++ [pid 10310] +++ exited with 0 +++ [pid 10255] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10255, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=96 /* 0.96 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10330 ./strace-static-x86_64: Process 10330 attached [pid 10330] set_robust_list(0x5555693e0760, 24) = 0 [pid 10330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10330] setpgid(0, 0) = 0 [pid 10330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10330] write(3, "1000", 4) = 4 [pid 10330] close(3executing program ) = 0 [pid 10330] write(1, "executing program\n", 18) = 18 [pid 10330] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10330] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10330] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10331 attached [pid 10331] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10330] <... clone3 resumed> => {parent_tid=[10331]}, 88) = 10331 [pid 10331] <... rseq resumed>) = 0 [pid 10330] rt_sigprocmask(SIG_SETMASK, [], [pid 10331] set_robust_list(0x7ff7dbc929a0, 24 [pid 10330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10331] <... set_robust_list resumed>) = 0 [pid 10330] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10331] rt_sigprocmask(SIG_SETMASK, [], [pid 10330] <... futex resumed>) = 0 [pid 10331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10330] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10331] memfd_create("syzkaller", 0) = 3 [pid 10331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10325] <... write resumed>) = 16777216 [pid 10325] munmap(0x7ff7d3800000, 138412032 [pid 10328] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10325] <... munmap resumed>) = 0 [pid 10325] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10325] ioctl(4, LOOP_SET_FD, 3 [pid 10329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10325] <... ioctl resumed>) = 0 [pid 10325] close(3) = 0 [pid 10325] close(4) = 0 [pid 10325] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 382.702999][T10325] loop1: detected capacity change from 0 to 32768 [pid 10325] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10324] <... write resumed>) = 16777216 [pid 10324] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10324] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 382.835798][T10325] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10324] ioctl(4, LOOP_SET_FD, 3 [pid 10328] <... write resumed>) = 16777216 [pid 10324] <... ioctl resumed>) = 0 [pid 10324] close(3) = 0 [pid 10324] close(4) = 0 [pid 10328] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10324] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10324] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10328] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 382.889035][T10324] loop4: detected capacity change from 0 to 32768 [ 382.901445][T10325] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10328] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10328] close(3) = 0 [pid 10328] close(4) = 0 [pid 10328] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 382.958518][T10328] loop3: detected capacity change from 0 to 32768 [ 382.988870][T10324] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 382.999461][T10324] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10328] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10325] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10325] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10325] ioctl(3, LOOP_CLR_FD) = 0 [ 383.136116][T10328] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 383.146682][T10328] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 383.163848][T10325] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10325] close(3 [pid 10324] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10324] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 10324] ioctl(3, LOOP_CLR_FD) = 0 [ 383.209376][T10324] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10324] close(3 [pid 10329] <... write resumed>) = 16777216 [pid 10329] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10329] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10329] close(3) = 0 [pid 10329] close(4) = 0 [pid 10328] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10328] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10329] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10329] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10328] <... openat resumed>) = 3 [pid 10328] ioctl(3, LOOP_CLR_FD) = 0 [ 383.356204][T10329] loop0: detected capacity change from 0 to 32768 [ 383.363764][T10328] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10328] close(3 [pid 10324] <... close resumed>) = 0 [pid 10324] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10324] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10322] <... futex resumed>) = 0 [pid 10322] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10324] <... futex resumed>) = 0 [pid 10322] <... futex resumed>) = 1 [pid 10324] creat("./bus", 000 [pid 10322] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10325] <... close resumed>) = 0 [pid 10325] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10323] <... futex resumed>) = 0 [pid 10323] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10325] creat("./bus", 000 [pid 10323] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10322] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10322] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10322] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10322] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 383.538731][T10329] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 383.548595][T10329] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10322] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10360]}, 88) = 10360 ./strace-static-x86_64: Process 10360 attached [pid 10322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10323] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10322] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10323] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10322] <... futex resumed>) = 0 [pid 10322] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10323] <... futex resumed>) = 0 [pid 10323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10360] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10323] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10360] <... rseq resumed>) = 0 [pid 10360] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10360] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10360] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10323] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10360] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10323] <... mprotect resumed>) = 0 [pid 10322] <... futex resumed>) = 0 [pid 10323] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10322] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10323] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10322] <... futex resumed>) = 0 [pid 10323] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10361 attached [pid 10360] memfd_create("syzkaller", 0 [pid 10322] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10323] <... clone3 resumed> => {parent_tid=[10361]}, 88) = 10361 [pid 10360] <... memfd_create resumed>) = 4 [pid 10360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10323] rt_sigprocmask(SIG_SETMASK, [], [pid 10360] <... mmap resumed>) = 0x7ff7d3800000 [pid 10323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10361] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10323] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10361] <... rseq resumed>) = 0 [pid 10323] <... futex resumed>) = 0 [pid 10361] set_robust_list(0x7ff7dbc719a0, 24 [pid 10323] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10361] <... set_robust_list resumed>) = 0 [pid 10361] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10361] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10361] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10328] <... close resumed>) = 0 [pid 10361] <... futex resumed>) = 1 [pid 10328] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10323] <... futex resumed>) = 0 [pid 10361] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10328] <... futex resumed>) = 1 [pid 10323] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10328] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10323] <... futex resumed>) = 0 [pid 10326] <... futex resumed>) = 0 [pid 10323] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10326] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10361] memfd_create("syzkaller", 0 [pid 10326] <... futex resumed>) = 1 [pid 10328] <... futex resumed>) = 0 [pid 10361] <... memfd_create resumed>) = 4 [pid 10328] creat("./bus", 000 [pid 10326] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10331] <... write resumed>) = 16777216 [pid 10331] munmap(0x7ff7d3800000, 138412032 [pid 10326] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10326] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10326] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10326] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10326] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10362 attached => {parent_tid=[10362]}, 88) = 10362 [pid 10326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10326] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10326] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10362] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10362] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10362] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10362] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10326] <... futex resumed>) = 0 [pid 10326] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10326] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10331] <... munmap resumed>) = 0 [pid 10362] memfd_create("syzkaller", 0 [pid 10331] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10362] <... memfd_create resumed>) = 4 [pid 10331] <... openat resumed>) = 4 [pid 10362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10331] ioctl(4, LOOP_SET_FD, 3 [pid 10362] <... mmap resumed>) = 0x7ff7d3800000 [pid 10331] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10331] ioctl(4, LOOP_CLR_FD) = 0 [pid 10329] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 383.741974][T10329] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10329] ioctl(3, LOOP_CLR_FD [pid 10331] ioctl(4, LOOP_SET_FD, 3 [pid 10329] <... ioctl resumed>) = 0 [pid 10329] close(3 [pid 10331] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10331] close(4) = 0 [pid 10331] close(3 [pid 10324] <... creat resumed>) = 3 [pid 10324] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10325] <... creat resumed>) = 3 [pid 10324] <... futex resumed>) = 0 [pid 10324] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10328] <... creat resumed>) = 3 [pid 10325] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10328] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10325] <... futex resumed>) = 0 [pid 10328] <... futex resumed>) = 0 [pid 10325] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10328] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10329] <... close resumed>) = 0 [pid 10329] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10327] <... futex resumed>) = 0 [pid 10327] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10327] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10329] creat("./bus", 000) = 3 [pid 10329] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10361] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10329] <... futex resumed>) = 1 [pid 10327] <... futex resumed>) = 0 [pid 10327] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10327] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10329] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10331] <... close resumed>) = 0 [pid 10331] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10330] <... futex resumed>) = 0 [pid 10330] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10330] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10331] <... futex resumed>) = 1 [pid 10331] creat("./bus", 000 [pid 10360] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10327] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10327] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10327] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10327] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10327] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10327] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10363]}, 88) = 10363 [pid 10327] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10327] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10327] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10363 attached [pid 10363] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10363] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10363] rt_sigprocmask(SIG_SETMASK, [], [pid 10330] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10363] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10330] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 10330] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10363] memfd_create("syzkaller", 0 [pid 10330] <... futex resumed>) = 0 [pid 10363] <... memfd_create resumed>) = 4 [pid 10330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10330] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10363] <... mmap resumed>) = 0x7ff7d3800000 [pid 10330] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10364 attached => {parent_tid=[10364]}, 88) = 10364 [pid 10330] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10330] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10364] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10330] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10364] <... rseq resumed>) = 0 [pid 10364] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10364] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10364] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10330] <... futex resumed>) = 0 [pid 10330] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10330] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10364] <... futex resumed>) = 1 [pid 10364] memfd_create("syzkaller", 0) = 4 [pid 10364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10362] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10361] <... write resumed>) = 16777216 [pid 10361] munmap(0x7ff7d3800000, 138412032 [pid 10363] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10364] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10361] <... munmap resumed>) = 0 [pid 10360] <... write resumed>) = 16777216 [pid 10360] munmap(0x7ff7d3800000, 138412032 [pid 10361] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10361] ioctl(5, LOOP_SET_FD, 4 [pid 10360] <... munmap resumed>) = 0 [pid 10361] <... ioctl resumed>) = 0 [pid 10361] close(4) = 0 [pid 10361] close(5) = 0 [pid 10361] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 384.601436][T10361] loop1: detected capacity change from 0 to 32768 [pid 10361] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10360] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 384.641079][T10361] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10361) [pid 10360] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10360] close(4) = 0 [pid 10360] close(5) = 0 [pid 10360] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10360] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10362] <... write resumed>) = 16777216 [ 384.681333][T10360] loop4: detected capacity change from 0 to 32768 [ 384.706539][T10361] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10362] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10362] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 10362] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10362] close(4) = 0 [pid 10362] close(5) = 0 [pid 10362] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 384.737826][T10360] BTRFS: device /dev/loop4 (7:4) using temp-fsid 6d4b62e3-8661-4875-9dd5-283c08f599e8 [ 384.747486][T10360] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10360) [ 384.747754][T10361] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 384.775424][T10362] loop3: detected capacity change from 0 to 32768 [ 384.828798][T10362] BTRFS: device /dev/loop3 (7:3) using temp-fsid 7a176ea9-9369-4d76-a569-e58759c94538 [ 384.853373][T10362] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10362) [ 384.861704][T10360] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 384.922340][T10360] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 384.958061][T10362] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10362] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10329] <... write resumed>) = 16776704 [pid 10329] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 384.977997][T10362] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 385.068857][T10361] BTRFS info (device loop1): rebuilding free space tree [pid 10329] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10331] <... creat resumed>) = 3 [pid 10364] <... write resumed>) = 16777216 [pid 10331] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10331] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10364] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10364] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10364] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10364] ioctl(5, LOOP_CLR_FD) = 0 [pid 10363] <... write resumed>) = 16777216 [ 385.165610][T10361] BTRFS info (device loop1): disabling free space tree [ 385.201822][T10361] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10363] munmap(0x7ff7d3800000, 138412032 [pid 10364] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10363] <... munmap resumed>) = 0 [pid 10363] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10364] close(5 [pid 10363] <... openat resumed>) = 5 [pid 10363] ioctl(5, LOOP_SET_FD, 4 [pid 10364] <... close resumed>) = 0 [pid 10363] <... ioctl resumed>) = 0 [pid 10364] close(4 [pid 10363] close(4) = 0 [pid 10363] close(5) = 0 [pid 10363] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 385.250395][T10363] loop0: detected capacity change from 0 to 32768 [ 385.259283][T10361] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 385.285061][T10363] BTRFS: device /dev/loop0 (7:0) using temp-fsid 60e67f37-ab4a-4986-b675-0cf422d70ab4 [ 385.328199][T10363] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10363) [ 385.367834][T10361] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10363] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10364] <... close resumed>) = 0 [pid 10364] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10330] <... futex resumed>) = 0 [pid 10364] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10330] exit_group(0) = ? [pid 10364] <... futex resumed>) = ? [pid 10331] <... futex resumed>) = ? [pid 10331] +++ exited with 0 +++ [pid 10364] +++ exited with 0 +++ [pid 10330] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10330, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=80 /* 0.80 s */} --- [ 385.425094][T10363] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 385.454585][T10363] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 385.461243][T10360] BTRFS info (device loop4): rebuilding free space tree [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10415 attached , child_tidptr=0x5555693e0750) = 10415 [pid 10415] set_robust_list(0x5555693e0760, 24 [pid 10361] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10415] <... set_robust_list resumed>) = 0 [pid 10415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10415] setpgid(0, 0) = 0 [ 385.509892][T10360] BTRFS info (device loop4): disabling free space tree [ 385.516080][T10362] BTRFS info (device loop3): rebuilding free space tree [ 385.523747][T10360] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 385.523782][T10360] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10361] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10415] write(3, "1000", 4 [pid 10361] <... openat resumed>) = 4 [pid 10415] <... write resumed>) = 4 [pid 10361] ioctl(4, LOOP_CLR_FD [pid 10415] close(3 [pid 10361] <... ioctl resumed>) = 0 executing program [pid 10415] <... close resumed>) = 0 [pid 10361] close(4 [pid 10415] write(1, "executing program\n", 18) = 18 [pid 10415] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10415] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [ 385.564304][T10362] BTRFS info (device loop3): disabling free space tree [ 385.576863][T10362] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 385.595413][T10360] BTRFS info (device loop4): last unmount of filesystem 6d4b62e3-8661-4875-9dd5-283c08f599e8 [pid 10415] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10415] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10425 attached => {parent_tid=[10425]}, 88) = 10425 [ 385.619882][T10362] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10425] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10415] rt_sigprocmask(SIG_SETMASK, [], [pid 10425] <... rseq resumed>) = 0 [pid 10415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10425] set_robust_list(0x7ff7dbc929a0, 24 [pid 10415] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10425] <... set_robust_list resumed>) = 0 [pid 10415] <... futex resumed>) = 0 [pid 10425] rt_sigprocmask(SIG_SETMASK, [], [pid 10415] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10425] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10425] memfd_create("syzkaller", 0) = 3 [pid 10425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10360] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10360] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10360] ioctl(4, LOOP_CLR_FD) = 0 [ 385.667178][T10362] BTRFS info (device loop3): last unmount of filesystem 7a176ea9-9369-4d76-a569-e58759c94538 [ 385.703326][T10363] BTRFS info (device loop0): rebuilding free space tree [pid 10360] close(4 [pid 10362] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10362] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10362] ioctl(4, LOOP_CLR_FD) = 0 [ 385.788257][T10363] BTRFS info (device loop0): disabling free space tree [ 385.830088][T10363] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 385.878721][T10363] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10362] close(4 [pid 10360] <... close resumed>) = 0 [pid 10360] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10360] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10322] <... futex resumed>) = 0 [pid 10322] exit_group(0 [pid 10360] <... futex resumed>) = ? [pid 10324] <... futex resumed>) = ? [pid 10322] <... exit_group resumed>) = ? [pid 10324] +++ exited with 0 +++ [pid 10360] +++ exited with 0 +++ [pid 10322] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10322, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=90 /* 0.90 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10431 attached , child_tidptr=0x5555693e0750) = 10431 [pid 10431] set_robust_list(0x5555693e0760, 24) = 0 [pid 10431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10431] setpgid(0, 0) = 0 [pid 10431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 10431] write(3, "1000", 4) = 4 [pid 10431] close(3) = 0 [pid 10431] write(1, "executing program\n", 18) = 18 [pid 10431] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10431] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10431] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10431] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10361] <... close resumed>) = 0 [pid 10431] <... mprotect resumed>) = 0 [pid 10431] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10431] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10432 attached => {parent_tid=[10432]}, 88) = 10432 [pid 10431] rt_sigprocmask(SIG_SETMASK, [], [pid 10432] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10431] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10432] <... rseq resumed>) = 0 [pid 10431] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10432] set_robust_list(0x7ff7dbc929a0, 24 [pid 10431] <... futex resumed>) = 0 [pid 10361] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10432] <... set_robust_list resumed>) = 0 [pid 10431] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10432] rt_sigprocmask(SIG_SETMASK, [], [pid 10361] <... futex resumed>) = 1 [pid 10323] <... futex resumed>) = 0 [pid 10361] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10323] exit_group(0 [pid 10432] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10432] memfd_create("syzkaller", 0 [pid 10361] <... futex resumed>) = ? [ 385.983264][T10363] BTRFS info (device loop0): last unmount of filesystem 60e67f37-ab4a-4986-b675-0cf422d70ab4 [pid 10325] <... futex resumed>) = ? [pid 10323] <... exit_group resumed>) = ? [pid 10361] +++ exited with 0 +++ [pid 10325] +++ exited with 0 +++ [pid 10432] <... memfd_create resumed>) = 3 [pid 10323] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10323, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=93 /* 0.93 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 10432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10433 attached , child_tidptr=0x5555693e0750) = 10433 [pid 10433] set_robust_list(0x5555693e0760, 24) = 0 [pid 10363] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10363] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10433] setpgid(0, 0 [pid 10363] <... openat resumed>) = 4 [pid 10433] <... setpgid resumed>) = 0 [pid 10433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10363] ioctl(4, LOOP_CLR_FD) = 0 [pid 10433] <... openat resumed>) = 3 [pid 10433] write(3, "1000", 4 [pid 10363] close(4 [pid 10433] <... write resumed>) = 4 [pid 10433] close(3) = 0 [pid 10433] write(1, "executing program\n", 18executing program ) = 18 [pid 10362] <... close resumed>) = 0 [pid 10433] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10362] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10433] <... futex resumed>) = 0 [pid 10362] <... futex resumed>) = 1 [pid 10433] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 10362] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10326] <... futex resumed>) = 0 [pid 10326] exit_group(0 [pid 10362] <... futex resumed>) = ? [pid 10326] <... exit_group resumed>) = ? [pid 10362] +++ exited with 0 +++ [pid 10433] <... rt_sigaction resumed>NULL, 8) = 0 [pid 10328] <... futex resumed>) = ? [pid 10433] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10328] +++ exited with 0 +++ [pid 10326] +++ exited with 0 +++ [pid 10433] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10326, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=89 /* 0.89 s */} --- [pid 10433] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 10433] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10433] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10433] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10434 attached [pid 10434] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10433] <... clone3 resumed> => {parent_tid=[10434]}, 88) = 10434 [pid 5847] <... restart_syscall resumed>) = 0 [pid 10434] <... rseq resumed>) = 0 [pid 10433] rt_sigprocmask(SIG_SETMASK, [], [pid 10434] set_robust_list(0x7ff7dbc929a0, 24 [pid 10433] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10434] <... set_robust_list resumed>) = 0 [pid 10434] rt_sigprocmask(SIG_SETMASK, [], [pid 10433] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10434] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10433] <... futex resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10433] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10434] memfd_create("syzkaller", 0) = 3 [pid 5847] <... openat resumed>) = 3 [pid 10434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10435 attached , child_tidptr=0x5555693e0750) = 10435 [pid 10435] set_robust_list(0x5555693e0760, 24) = 0 [pid 10435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10435] setpgid(0, 0) = 0 [pid 10435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10435] write(3, "1000", 4) = 4 [pid 10435] close(3) = 0 [pid 10435] write(1, "executing program\n", 18executing program ) = 18 [pid 10435] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10435] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10435] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10435] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10435] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10435] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10436 attached => {parent_tid=[10436]}, 88) = 10436 [pid 10436] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10435] rt_sigprocmask(SIG_SETMASK, [], [pid 10436] <... rseq resumed>) = 0 [pid 10435] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10436] set_robust_list(0x7ff7dbc929a0, 24 [pid 10435] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10436] <... set_robust_list resumed>) = 0 [pid 10435] <... futex resumed>) = 0 [pid 10435] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10436] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10363] <... close resumed>) = 0 [pid 10436] memfd_create("syzkaller", 0) = 3 [pid 10363] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10363] <... futex resumed>) = 1 [pid 10436] <... mmap resumed>) = 0x7ff7d3800000 [pid 10363] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10327] <... futex resumed>) = 0 [pid 10327] exit_group(0 [pid 10363] <... futex resumed>) = ? [pid 10329] <... futex resumed>) = ? [pid 10327] <... exit_group resumed>) = ? [pid 10329] +++ exited with 0 +++ [pid 10363] +++ exited with 0 +++ [pid 10327] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10327, si_uid=0, si_status=0, si_utime=24 /* 0.24 s */, si_stime=119 /* 1.19 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10437 ./strace-static-x86_64: Process 10437 attached [pid 10437] set_robust_list(0x5555693e0760, 24) = 0 [pid 10437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10437] setpgid(0, 0) = 0 [pid 10437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10437] write(3, "1000", 4executing program ) = 4 [pid 10437] close(3) = 0 [pid 10437] write(1, "executing program\n", 18) = 18 [pid 10437] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10437] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10437] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10437] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10437] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10437] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10438 attached => {parent_tid=[10438]}, 88) = 10438 [pid 10437] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10437] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10437] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10438] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10438] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10438] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10438] memfd_create("syzkaller", 0) = 3 [pid 10438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10425] <... write resumed>) = 16777216 [pid 10425] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10425] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10425] ioctl(4, LOOP_CLR_FD) = 0 [pid 10434] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10425] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10425] close(4) = 0 [pid 10425] close(3 [pid 10436] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10425] <... close resumed>) = 0 [pid 10438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10425] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10425] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10415] <... futex resumed>) = 0 [pid 10415] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10425] <... futex resumed>) = 0 [pid 10425] creat("./bus", 000) = 3 [pid 10432] <... write resumed>) = 16777216 [pid 10415] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10425] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10425] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10415] <... futex resumed>) = 0 [pid 10415] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10425] <... futex resumed>) = 0 [pid 10415] <... futex resumed>) = 1 [pid 10425] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10415] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10432] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10432] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10432] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10432] close(3) = 0 [pid 10432] close(4) = 0 [pid 10415] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10432] mkdir("./file1", 0777 [pid 10415] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10432] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10415] <... futex resumed>) = 0 [pid 10432] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10415] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10443 attached => {parent_tid=[10443]}, 88) = 10443 [pid 10415] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10443] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [ 387.001932][T10432] loop4: detected capacity change from 0 to 32768 [pid 10415] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10443] set_robust_list(0x7ff7dbc719a0, 24 [pid 10415] <... futex resumed>) = 0 [pid 10415] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10443] <... set_robust_list resumed>) = 0 [pid 10443] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10443] memfd_create("syzkaller", 0) = 4 [pid 10443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10434] <... write resumed>) = 16777216 [ 387.131315][T10432] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10434] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10434] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10434] ioctl(4, LOOP_SET_FD, 3 [pid 10443] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10434] <... ioctl resumed>) = 0 [pid 10434] close(3) = 0 [pid 10434] close(4) = 0 [ 387.199763][T10432] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 387.228908][T10434] loop1: detected capacity change from 0 to 32768 [pid 10434] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10434] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10436] <... write resumed>) = 16777216 [pid 10436] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10436] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10436] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10436] close(3) = 0 [pid 10436] close(4) = 0 [pid 10436] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 387.416441][T10436] loop3: detected capacity change from 0 to 32768 [ 387.435222][T10434] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10436] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10432] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10432] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 10432] ioctl(3, LOOP_CLR_FD) = 0 [ 387.469827][T10434] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 387.483789][T10432] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10432] close(3 [pid 10438] <... write resumed>) = 16777216 [pid 10438] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 387.583270][T10436] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10438] ioctl(4, LOOP_SET_FD, 3 [pid 10434] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10434] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10434] ioctl(3, LOOP_CLR_FD [pid 10438] <... ioctl resumed>) = 0 [pid 10434] <... ioctl resumed>) = 0 [ 387.633078][T10436] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 387.633450][T10438] loop0: detected capacity change from 0 to 32768 [ 387.655236][T10434] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10438] close(3) = 0 [pid 10434] close(3 [pid 10438] close(4) = 0 [pid 10438] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10438] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10443] <... write resumed>) = 16777216 [pid 10443] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10443] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10443] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10443] ioctl(5, LOOP_CLR_FD) = 0 [pid 10443] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10443] close(5) = 0 [pid 10443] close(4 [pid 10436] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10432] <... close resumed>) = 0 [pid 10432] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10432] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10431] <... futex resumed>) = 0 [pid 10431] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10432] <... futex resumed>) = 0 [pid 10431] <... futex resumed>) = 1 [pid 10432] creat("./bus", 000 [pid 10431] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10436] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 10436] ioctl(3, LOOP_CLR_FD) = 0 [ 387.887582][T10436] bcachefs: bch2_fs_get_tree() error: EINVAL [ 387.901086][T10438] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 387.927872][T10438] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10436] close(3 [pid 10431] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10431] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10431] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10431] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10431] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10468]}, 88) = 10468 ./strace-static-x86_64: Process 10468 attached [pid 10468] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10468] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10468] rt_sigprocmask(SIG_SETMASK, [], [pid 10431] rt_sigprocmask(SIG_SETMASK, [], [pid 10468] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10468] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10434] <... close resumed>) = 0 [pid 10431] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10434] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10431] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10468] <... futex resumed>) = 0 [pid 10434] <... futex resumed>) = 1 [pid 10433] <... futex resumed>) = 0 [pid 10431] <... futex resumed>) = 1 [pid 10468] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10433] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10431] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10468] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10433] <... futex resumed>) = 0 [pid 10468] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10433] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10468] <... futex resumed>) = 1 [pid 10431] <... futex resumed>) = 0 [pid 10468] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10434] creat("./bus", 000 [pid 10431] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10468] <... futex resumed>) = 0 [pid 10431] <... futex resumed>) = 1 [pid 10468] memfd_create("syzkaller", 0 [pid 10431] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10468] <... memfd_create resumed>) = 4 [pid 10468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10433] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10433] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10433] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10433] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10433] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10469]}, 88) = 10469 [pid 10433] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10433] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10433] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10469 attached [pid 10469] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10469] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10469] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10433] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10433] futex(0x7ff7dbd6e62c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10469] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10433] <... futex resumed>) = 0 [pid 10469] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10469] <... futex resumed>) = 0 [pid 10469] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10433] <... mmap resumed>) = 0x7ff7dbc30000 [pid 10433] mprotect(0x7ff7dbc31000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10433] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10433] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc50990, parent_tid=0x7ff7dbc50990, exit_signal=0, stack=0x7ff7dbc30000, stack_size=0x20240, tls=0x7ff7dbc506c0} => {parent_tid=[10470]}, 88) = 10470 [pid 10433] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10433] futex(0x7ff7dbd6e628, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 10470 attached [pid 10433] futex(0x7ff7dbd6e62c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10470] rseq(0x7ff7dbc50fe0, 0x20, 0, 0x53053053) = 0 [pid 10470] set_robust_list(0x7ff7dbc509a0, 24) = 0 [pid 10470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10470] memfd_create("syzkaller", 0) = 4 [pid 10470] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10438] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 10438] ioctl(3, LOOP_CLR_FD) = 0 [ 388.173120][T10438] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10438] close(3 [pid 10443] <... close resumed>) = 0 [pid 10443] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10425] <... write resumed>) = 16776704 [pid 10443] <... futex resumed>) = 1 [pid 10415] <... futex resumed>) = 0 [pid 10443] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10425] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10436] <... close resumed>) = 0 [pid 10425] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10415] exit_group(0 [pid 10443] <... futex resumed>) = ? [pid 10425] <... futex resumed>) = ? [pid 10415] <... exit_group resumed>) = ? [pid 10425] +++ exited with 0 +++ [pid 10436] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10435] <... futex resumed>) = 0 [pid 10436] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10435] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10436] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10435] <... futex resumed>) = 0 [pid 10436] creat("./bus", 000 [pid 10435] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10443] +++ exited with 0 +++ [pid 10435] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10415] +++ exited with 0 +++ [pid 10435] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10415, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=107 /* 1.07 s */} --- [pid 10435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10435] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10435] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10435] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5845] <... openat resumed>) = 3 [pid 10435] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 10471 attached [pid 5845] close(3 [pid 10435] <... clone3 resumed> => {parent_tid=[10471]}, 88) = 10471 [pid 5845] <... close resumed>) = 0 [pid 10435] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10435] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10435] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10471] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10471] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10471] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10471] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10471] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10435] <... futex resumed>) = 0 [pid 10435] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10435] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10471] <... futex resumed>) = 1 [pid 10471] memfd_create("syzkaller", 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10471] <... memfd_create resumed>) = 4 [pid 10471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 10472 attached ) = 0x7ff7d3800000 [pid 10472] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 10472 [pid 10472] <... set_robust_list resumed>) = 0 [pid 10472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10472] setpgid(0, 0) = 0 [pid 10472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10472] write(3, "1000", 4) = 4 [pid 10472] close(3) = 0 [pid 10472] write(1, "executing program\n", 18executing program ) = 18 [pid 10472] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10472] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10472] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10472] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10472] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10472] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10473 attached [pid 10473] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10438] <... close resumed>) = 0 [pid 10473] set_robust_list(0x7ff7dbc929a0, 24 [pid 10472] <... clone3 resumed> => {parent_tid=[10473]}, 88) = 10473 [pid 10468] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10473] <... set_robust_list resumed>) = 0 [pid 10472] rt_sigprocmask(SIG_SETMASK, [], [pid 10473] rt_sigprocmask(SIG_SETMASK, [], [pid 10472] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10473] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10472] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10473] memfd_create("syzkaller", 0 [pid 10438] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10472] <... futex resumed>) = 0 [pid 10472] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10438] <... futex resumed>) = 1 [pid 10437] <... futex resumed>) = 0 [pid 10473] <... memfd_create resumed>) = 3 [pid 10437] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10437] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10438] creat("./bus", 000 [pid 10473] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10437] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10437] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10437] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10437] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10437] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10474 attached => {parent_tid=[10474]}, 88) = 10474 [pid 10437] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10437] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10437] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10474] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10474] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10474] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10474] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10474] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10437] <... futex resumed>) = 0 [pid 10437] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10437] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10474] <... futex resumed>) = 1 [pid 10474] memfd_create("syzkaller", 0) = 4 [pid 10474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10470] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10432] <... creat resumed>) = 3 [pid 10434] <... creat resumed>) = 3 [pid 10434] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10434] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10436] <... creat resumed>) = 3 [pid 10436] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10436] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10438] <... creat resumed>) = 3 [pid 10438] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10438] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10432] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10432] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10471] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10473] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10468] <... write resumed>) = 16777216 [pid 10468] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10474] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10468] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 10468] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10468] close(4) = 0 [pid 10468] close(5) = 0 [pid 10468] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10468] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10470] <... write resumed>) = 16777216 [ 388.969980][T10468] loop4: detected capacity change from 0 to 32768 [ 389.002122][T10468] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10468) [pid 10470] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10470] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10470] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10470] close(4) = 0 [pid 10470] close(5) = 0 [pid 10470] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 389.049456][T10468] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 389.069562][T10470] loop1: detected capacity change from 0 to 32768 [ 389.076432][T10468] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 389.119595][T10470] BTRFS: device /dev/loop1 (7:1) using temp-fsid c7784ada-f1d6-4b84-bba8-4bd678122195 [pid 10470] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10471] <... write resumed>) = 16777216 [ 389.167699][T10470] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10470) [pid 10471] munmap(0x7ff7d3800000, 138412032 [pid 10473] <... write resumed>) = 16777216 [ 389.218504][T10470] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10471] <... munmap resumed>) = 0 [pid 10471] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 10471] ioctl(5, LOOP_SET_FD, 4 [pid 10473] munmap(0x7ff7d3800000, 138412032 [pid 10471] <... ioctl resumed>) = 0 [pid 10471] close(4) = 0 [pid 10471] close(5) = 0 [pid 10471] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 389.260300][T10470] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 389.270417][T10471] loop3: detected capacity change from 0 to 32768 [pid 10471] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10473] <... munmap resumed>) = 0 [pid 10473] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10473] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10473] ioctl(4, LOOP_CLR_FD) = 0 [pid 10473] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10473] close(4) = 0 [ 389.310906][T10471] BTRFS: device /dev/loop3 (7:3) using temp-fsid 6e1a8ae3-e9b6-4d4e-8e5b-55771db334de [ 389.341229][T10471] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10471) [pid 10473] close(3 [pid 10474] <... write resumed>) = 16777216 [ 389.388951][T10468] BTRFS info (device loop4): rebuilding free space tree [ 389.402819][T10471] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10474] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 10474] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10474] close(4) = 0 [ 389.433579][T10468] BTRFS info (device loop4): disabling free space tree [ 389.443176][T10468] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 389.455480][T10474] loop0: detected capacity change from 0 to 32768 [ 389.463368][T10468] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 389.468173][T10470] BTRFS info (device loop1): rebuilding free space tree [pid 10474] close(5) = 0 [pid 10474] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 389.477069][T10471] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 389.508299][T10468] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 389.528596][T10474] BTRFS: device /dev/loop0 (7:0) using temp-fsid 12d3e5ea-39f2-4b5d-88db-c1fff1700988 [ 389.558372][T10474] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10474) [ 389.590898][T10474] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 389.606737][T10470] BTRFS info (device loop1): disabling free space tree [ 389.664084][T10470] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 389.677297][T10474] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 10474] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10468] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10468] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10468] ioctl(4, LOOP_CLR_FD) = 0 [ 389.715916][T10470] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 389.722025][T10471] BTRFS info (device loop3): rebuilding free space tree [pid 10468] close(4 [pid 10473] <... close resumed>) = 0 [pid 10473] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10472] <... futex resumed>) = 0 [pid 10472] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10472] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10473] creat("./bus", 000) = 3 [pid 10473] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10472] <... futex resumed>) = 0 [pid 10472] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10472] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 389.785341][T10470] BTRFS info (device loop1): last unmount of filesystem c7784ada-f1d6-4b84-bba8-4bd678122195 [ 389.805560][T10471] BTRFS info (device loop3): disabling free space tree [pid 10473] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10472] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10472] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 10472] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10472] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10472] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10472] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10538]}, 88) = 10538 [pid 10472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10472] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10472] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10538 attached [pid 10538] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [ 389.863588][T10471] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10538] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10538] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10538] memfd_create("syzkaller", 0) = 4 [pid 10538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 389.918806][T10474] BTRFS info (device loop0): rebuilding free space tree [ 389.926541][T10471] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 389.970461][T10474] BTRFS info (device loop0): disabling free space tree [ 389.987802][T10474] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 390.005316][T10474] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10470] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10470] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10470] ioctl(4, LOOP_CLR_FD) = 0 [pid 10470] close(4 [pid 10468] <... close resumed>) = 0 [pid 10468] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10431] <... futex resumed>) = 0 [pid 10431] exit_group(0 [pid 10432] <... futex resumed>) = ? [pid 10431] <... exit_group resumed>) = ? [pid 10432] +++ exited with 0 +++ [pid 10468] +++ exited with 0 +++ [pid 10431] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10431, si_uid=0, si_status=0, si_utime=24 /* 0.24 s */, si_stime=97 /* 0.97 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10540 attached [pid 10470] <... close resumed>) = 0 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 10540 [pid 10540] set_robust_list(0x5555693e0760, 24 [pid 10470] futex(0x7ff7dbd6e62c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10540] <... set_robust_list resumed>) = 0 [pid 10540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10470] <... futex resumed>) = 1 [pid 10433] <... futex resumed>) = 0 [pid 10540] <... prctl resumed>) = 0 [pid 10470] futex(0x7ff7dbd6e628, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10433] exit_group(0 [pid 10540] setpgid(0, 0 [pid 10434] <... futex resumed>) = ? [pid 10433] <... exit_group resumed>) = ? [pid 10540] <... setpgid resumed>) = 0 [pid 10470] <... futex resumed>) = ? [pid 10434] +++ exited with 0 +++ [pid 10469] <... futex resumed>) = ? [pid 10540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10469] +++ exited with 0 +++ [pid 10540] <... openat resumed>) = 3 [pid 10540] write(3, "1000", 4) = 4 [pid 10540] close(3executing program ) = 0 [pid 10540] write(1, "executing program\n", 18) = 18 [pid 10470] +++ exited with 0 +++ [pid 10433] +++ exited with 0 +++ [pid 10540] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10540] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10433, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=85 /* 0.85 s */} --- [pid 10540] <... rt_sigaction resumed>NULL, 8) = 0 [pid 10540] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 10540] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10540] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10540] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10540] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10541 attached [pid 5844] <... restart_syscall resumed>) = 0 [pid 10540] <... clone3 resumed> => {parent_tid=[10541]}, 88) = 10541 [pid 10540] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10540] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10541] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10540] <... futex resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10541] <... rseq resumed>) = 0 [pid 10540] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5844] <... openat resumed>) = 3 [pid 10541] set_robust_list(0x7ff7dbc929a0, 24 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 10541] <... set_robust_list resumed>) = 0 [pid 10541] rt_sigprocmask(SIG_SETMASK, [], [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 10541] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5844] close(3 [pid 10541] memfd_create("syzkaller", 0 [pid 5844] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10542 attached [pid 10541] <... memfd_create resumed>) = 3 [pid 10542] set_robust_list(0x5555693e0760, 24 [pid 10541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 10542 [pid 10542] <... set_robust_list resumed>) = 0 [pid 10542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10541] <... mmap resumed>) = 0x7ff7d3800000 [pid 10542] <... prctl resumed>) = 0 [pid 10538] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10542] setpgid(0, 0) = 0 [pid 10542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10542] write(3, "1000", 4) = 4 [pid 10542] close(3executing program ) = 0 [pid 10542] write(1, "executing program\n", 18) = 18 [pid 10542] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10542] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10542] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10542] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10542] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10542] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10543 attached => {parent_tid=[10543]}, 88) = 10543 [pid 10542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10542] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10543] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10543] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10543] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10543] memfd_create("syzkaller", 0) = 3 [pid 10543] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10542] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10541] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10473] <... write resumed>) = 16776704 [pid 10473] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10473] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10538] <... write resumed>) = 16777216 [ 390.706059][T10471] BTRFS info (device loop3): last unmount of filesystem 6e1a8ae3-e9b6-4d4e-8e5b-55771db334de [ 390.706086][T10474] BTRFS info (device loop0): last unmount of filesystem 12d3e5ea-39f2-4b5d-88db-c1fff1700988 [pid 10538] munmap(0x7ff7d3800000, 138412032 [pid 10543] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10538] <... munmap resumed>) = 0 [pid 10471] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10538] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10474] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10471] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10471] ioctl(4, LOOP_CLR_FD) = 0 [pid 10471] close(4 [pid 10538] <... openat resumed>) = 5 [pid 10474] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10538] ioctl(5, LOOP_SET_FD, 4 [pid 10474] <... openat resumed>) = 4 [pid 10474] ioctl(4, LOOP_CLR_FD [pid 10538] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10474] <... ioctl resumed>) = 0 [pid 10538] ioctl(5, LOOP_CLR_FD) = 0 [pid 10538] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10474] close(4 [pid 10538] close(5) = 0 [pid 10538] close(4 [pid 10541] <... write resumed>) = 16777216 [pid 10538] <... close resumed>) = 0 [pid 10538] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10538] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10472] <... futex resumed>) = 0 [pid 10541] munmap(0x7ff7d3800000, 138412032 [pid 10472] exit_group(0 [pid 10473] <... futex resumed>) = ? [pid 10472] <... exit_group resumed>) = ? [pid 10473] +++ exited with 0 +++ [pid 10538] <... futex resumed>) = ? [pid 10538] +++ exited with 0 +++ [pid 10541] <... munmap resumed>) = 0 [pid 10541] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10474] <... close resumed>) = 0 [pid 10472] +++ exited with 0 +++ [pid 10541] <... openat resumed>) = 4 [pid 10474] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10472, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=99 /* 0.99 s */} --- [pid 10541] ioctl(4, LOOP_SET_FD, 3 [pid 10474] <... futex resumed>) = 1 [pid 10437] <... futex resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 10437] exit_group(0 [pid 10438] <... futex resumed>) = ? [pid 10437] <... exit_group resumed>) = ? [pid 10438] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10544 attached [pid 10544] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 10544 [pid 10544] <... set_robust_list resumed>) = 0 [pid 10544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10544] setpgid(0, 0) = 0 [pid 10544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10544] write(3, "1000", 4) = 4 [pid 10544] close(3executing program ) = 0 [pid 10544] write(1, "executing program\n", 18) = 18 [pid 10544] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10544] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10544] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10474] +++ exited with 0 +++ [pid 10437] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10437, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=88 /* 0.88 s */} --- [pid 10541] <... ioctl resumed>) = 0 [pid 10471] <... close resumed>) = 0 [pid 10541] close(3 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 10544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 10544] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10545 attached [pid 10541] <... close resumed>) = 0 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 10545 [pid 10545] set_robust_list(0x5555693e0760, 24 [pid 10544] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10541] close(4 [pid 10471] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10541] <... close resumed>) = 0 [pid 10471] <... futex resumed>) = 1 [pid 10435] <... futex resumed>) = 0 [pid 10544] <... mprotect resumed>) = 0 [pid 10541] mkdir("./file1", 0777 [pid 10471] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10435] exit_group(0 [pid 10545] <... set_robust_list resumed>) = 0 [pid 10544] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10541] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10471] <... futex resumed>) = ? [pid 10436] <... futex resumed>) = ? [pid 10435] <... exit_group resumed>) = ? [pid 10545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10544] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10541] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10471] +++ exited with 0 +++ [pid 10436] +++ exited with 0 +++ [pid 10435] +++ exited with 0 +++ [pid 10544] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10435, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=85 /* 0.85 s */} --- [pid 10545] <... prctl resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 10544] <... clone3 resumed> => {parent_tid=[10546]}, 88) = 10546 [ 391.150236][T10541] loop4: detected capacity change from 0 to 32768 [pid 10545] setpgid(0, 0 [pid 10544] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10545] <... setpgid resumed>) = 0 [pid 10544] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10544] <... futex resumed>) = 0 [pid 10544] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10545] <... openat resumed>) = 3 [pid 10545] write(3, "1000", 4) = 4 executing program [pid 10545] close(3) = 0 [pid 10545] write(1, "executing program\n", 18 [pid 5847] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 10546 attached [pid 10545] <... write resumed>) = 18 [pid 10546] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10545] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10546] set_robust_list(0x7ff7dbc929a0, 24 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10546] <... set_robust_list resumed>) = 0 [pid 10546] rt_sigprocmask(SIG_SETMASK, [], [pid 10545] <... futex resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 10545] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10545] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10545] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10545] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10546] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10545] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5847] ioctl(3, LOOP_CLR_FD [pid 10546] memfd_create("syzkaller", 0 [pid 10545] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 10546] <... memfd_create resumed>) = 3 [pid 10543] <... write resumed>) = 16777216 [pid 5847] close(3 [pid 10545] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10551 attached [pid 10546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5847] <... close resumed>) = 0 [pid 10546] <... mmap resumed>) = 0x7ff7d3800000 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10553 attached [pid 10551] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10545] <... clone3 resumed> => {parent_tid=[10551]}, 88) = 10551 [pid 10553] set_robust_list(0x5555693e0760, 24 [pid 10551] <... rseq resumed>) = 0 [pid 10545] rt_sigprocmask(SIG_SETMASK, [], [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 10553 [pid 10553] <... set_robust_list resumed>) = 0 [pid 10551] set_robust_list(0x7ff7dbc929a0, 24 [pid 10545] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10545] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10551] <... set_robust_list resumed>) = 0 [pid 10545] <... futex resumed>) = 0 [pid 10553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10551] rt_sigprocmask(SIG_SETMASK, [], [pid 10545] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10543] munmap(0x7ff7d3800000, 138412032 [pid 10553] <... prctl resumed>) = 0 [pid 10551] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10553] setpgid(0, 0 [pid 10551] memfd_create("syzkaller", 0 [pid 10553] <... setpgid resumed>) = 0 [pid 10553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10553] write(3, "1000", 4 [pid 10551] <... memfd_create resumed>) = 3 [pid 10553] <... write resumed>) = 4 [pid 10553] close(3) = 0 [pid 10543] <... munmap resumed>) = 0 [pid 10543] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10543] ioctl(4, LOOP_SET_FD, 3executing program [pid 10553] write(1, "executing program\n", 18 [pid 10551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10553] <... write resumed>) = 18 [pid 10543] <... ioctl resumed>) = 0 [pid 10551] <... mmap resumed>) = 0x7ff7d3800000 [pid 10543] close(3 [pid 10553] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10543] <... close resumed>) = 0 [pid 10543] close(4) = 0 [pid 10543] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10543] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10553] <... futex resumed>) = 0 [pid 10553] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10553] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10553] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10553] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10553] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10557]}, 88) = 10557 ./strace-static-x86_64: Process 10557 attached [pid 10553] rt_sigprocmask(SIG_SETMASK, [], [pid 10557] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10553] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10557] <... rseq resumed>) = 0 [pid 10553] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10557] set_robust_list(0x7ff7dbc929a0, 24 [pid 10553] <... futex resumed>) = 0 [pid 10557] <... set_robust_list resumed>) = 0 [pid 10553] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10557] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10557] memfd_create("syzkaller", 0) = 3 [ 391.289056][T10543] loop1: detected capacity change from 0 to 32768 [ 391.311311][T10541] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 391.402776][T10541] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 391.437270][T10543] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10546] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 391.518825][T10543] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10541] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10541] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 10541] ioctl(3, LOOP_CLR_FD) = 0 [ 391.679420][T10541] bcachefs: bch2_fs_get_tree() error: EINVAL [ 391.694286][T10543] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10541] close(3 [pid 10543] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10543] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10543] ioctl(3, LOOP_CLR_FD) = 0 [pid 10543] close(3 [pid 10546] <... write resumed>) = 16777216 [pid 10546] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10546] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10546] ioctl(4, LOOP_SET_FD, 3 [pid 10557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10546] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10546] ioctl(4, LOOP_CLR_FD) = 0 [pid 10546] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10546] close(4) = 0 [pid 10546] close(3 [pid 10541] <... close resumed>) = 0 [pid 10551] <... write resumed>) = 16777216 [pid 10551] munmap(0x7ff7d3800000, 138412032 [pid 10543] <... close resumed>) = 0 [pid 10541] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10541] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10543] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10540] <... futex resumed>) = 0 [pid 10540] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10543] <... futex resumed>) = 1 [pid 10542] <... futex resumed>) = 0 [pid 10541] <... futex resumed>) = 0 [pid 10540] <... futex resumed>) = 1 [pid 10542] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10541] creat("./bus", 000 [pid 10543] creat("./bus", 000 [pid 10542] <... futex resumed>) = 0 [pid 10540] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10542] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10551] <... munmap resumed>) = 0 [pid 10551] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10551] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10542] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10540] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10542] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10540] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10542] <... futex resumed>) = 0 [pid 10542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10540] <... futex resumed>) = 0 [pid 10542] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10542] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10551] close(3 [pid 10542] <... mprotect resumed>) = 0 [pid 10540] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10551] <... close resumed>) = 0 [pid 10542] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10540] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10551] close(4 [pid 10542] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10551] <... close resumed>) = 0 [pid 10542] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 10540] <... mprotect resumed>) = 0 [pid 10551] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10542] <... clone3 resumed> => {parent_tid=[10564]}, 88) = 10564 [pid 10551] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10540] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 10564 attached [pid 10542] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10540] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10564] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10542] <... futex resumed>) = 0 [pid 10540] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 10564] <... rseq resumed>) = 0 [pid 10542] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10565 attached [pid 10564] set_robust_list(0x7ff7dbc719a0, 24 [pid 10565] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10564] <... set_robust_list resumed>) = 0 [pid 10540] <... clone3 resumed> => {parent_tid=[10565]}, 88) = 10565 [pid 10565] <... rseq resumed>) = 0 [pid 10564] rt_sigprocmask(SIG_SETMASK, [], [pid 10540] rt_sigprocmask(SIG_SETMASK, [], [pid 10565] set_robust_list(0x7ff7dbc719a0, 24 [pid 10564] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10540] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10565] <... set_robust_list resumed>) = 0 [pid 10564] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10540] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10565] rt_sigprocmask(SIG_SETMASK, [], [pid 10564] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10540] <... futex resumed>) = 0 [pid 10565] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10564] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10540] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10565] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10564] <... futex resumed>) = 1 [pid 10542] <... futex resumed>) = 0 [pid 10542] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10565] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10564] memfd_create("syzkaller", 0 [pid 10542] <... futex resumed>) = 0 [pid 10565] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10564] <... memfd_create resumed>) = 4 [pid 10542] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10565] <... futex resumed>) = 1 [pid 10564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10540] <... futex resumed>) = 0 [pid 10540] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10564] <... mmap resumed>) = 0x7ff7d3800000 [pid 10540] <... futex resumed>) = 0 [pid 10540] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 392.108590][T10551] loop0: detected capacity change from 0 to 32768 [pid 10565] memfd_create("syzkaller", 0 [pid 10546] <... close resumed>) = 0 [pid 10565] <... memfd_create resumed>) = 4 [pid 10565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10546] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10565] <... mmap resumed>) = 0x7ff7d3800000 [pid 10546] <... futex resumed>) = 1 [pid 10544] <... futex resumed>) = 0 [pid 10546] creat("./bus", 000 [pid 10544] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10544] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10557] <... write resumed>) = 16777216 [pid 10557] munmap(0x7ff7d3800000, 138412032 [pid 10544] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10544] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10557] <... munmap resumed>) = 0 [pid 10544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10557] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10544] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10544] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10557] <... openat resumed>) = 4 [pid 10544] <... mprotect resumed>) = 0 [ 392.206169][T10551] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 392.238011][T10551] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10557] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10544] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10557] close(3 [pid 10544] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10557] <... close resumed>) = 0 [pid 10544] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 10557] close(4./strace-static-x86_64: Process 10573 attached ) = 0 [pid 10544] <... clone3 resumed> => {parent_tid=[10573]}, 88) = 10573 [pid 10557] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10557] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10544] rt_sigprocmask(SIG_SETMASK, [], [pid 10573] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10544] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10573] <... rseq resumed>) = 0 [pid 10544] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10573] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10544] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10573] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [ 392.270023][T10557] loop3: detected capacity change from 0 to 32768 [pid 10573] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10544] <... futex resumed>) = 0 [pid 10544] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10573] memfd_create("syzkaller", 0 [pid 10544] <... futex resumed>) = 0 [pid 10573] <... memfd_create resumed>) = 4 [pid 10544] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10541] <... creat resumed>) = 3 [pid 10546] <... creat resumed>) = 3 [pid 10543] <... creat resumed>) = 3 [pid 10543] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10546] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10543] <... futex resumed>) = 0 [pid 10543] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10541] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10541] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10546] <... futex resumed>) = 0 [pid 10546] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10551] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10551] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 392.464577][T10551] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10551] ioctl(3, LOOP_CLR_FD) = 0 [pid 10551] close(3 [ 392.530706][T10557] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 392.550548][T10557] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10564] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10565] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10557] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10557] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 10557] ioctl(3, LOOP_CLR_FD) = 0 [ 392.734719][T10557] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10557] close(3 [pid 10551] <... close resumed>) = 0 [pid 10551] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10545] <... futex resumed>) = 0 [pid 10551] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10545] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10545] <... futex resumed>) = 0 [pid 10551] creat("./bus", 000 [pid 10545] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10551] <... creat resumed>) = 3 [pid 10551] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10545] <... futex resumed>) = 0 [pid 10551] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10545] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10545] <... futex resumed>) = 0 [pid 10551] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10545] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10573] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10545] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10545] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10545] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10545] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10545] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10545] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10581 attached => {parent_tid=[10581]}, 88) = 10581 [pid 10545] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10545] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10545] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10581] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10581] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10581] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10581] memfd_create("syzkaller", 0) = 4 [pid 10581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10564] <... write resumed>) = 16777216 [pid 10564] munmap(0x7ff7d3800000, 138412032 [pid 10565] <... write resumed>) = 16777216 [pid 10565] munmap(0x7ff7d3800000, 138412032 [pid 10564] <... munmap resumed>) = 0 [pid 10564] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10564] ioctl(5, LOOP_SET_FD, 4 [pid 10565] <... munmap resumed>) = 0 [pid 10565] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 10565] ioctl(5, LOOP_SET_FD, 4 [pid 10564] <... ioctl resumed>) = 0 [pid 10564] close(4 [pid 10565] <... ioctl resumed>) = 0 [pid 10564] <... close resumed>) = 0 [pid 10565] close(4) = 0 [pid 10564] close(5 [pid 10565] close(5) = 0 [pid 10564] <... close resumed>) = 0 [pid 10565] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10565] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10564] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10564] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10557] <... close resumed>) = 0 [ 393.067175][T10564] loop1: detected capacity change from 0 to 32768 [ 393.073271][T10565] loop4: detected capacity change from 0 to 32768 [ 393.090233][T10565] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10565) [pid 10557] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10553] <... futex resumed>) = 0 [pid 10557] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 10553] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10557] creat("./bus", 000 [pid 10553] <... futex resumed>) = 0 [ 393.143738][T10564] BTRFS: device /dev/loop1 (7:1) using temp-fsid 27547473-e969-47fc-a721-45b292f9047e [ 393.145387][T10565] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 393.175263][T10564] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10564) [pid 10553] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10553] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10553] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10553] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10553] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10584 attached => {parent_tid=[10584]}, 88) = 10584 [ 393.211882][T10565] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 393.227832][T10564] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10584] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10553] rt_sigprocmask(SIG_SETMASK, [], [pid 10584] <... rseq resumed>) = 0 [pid 10584] set_robust_list(0x7ff7dbc719a0, 24 [pid 10553] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10584] <... set_robust_list resumed>) = 0 [pid 10553] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10584] rt_sigprocmask(SIG_SETMASK, [], [pid 10553] <... futex resumed>) = 0 [pid 10584] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10553] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10584] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10584] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10553] <... futex resumed>) = 0 [pid 10584] memfd_create("syzkaller", 0 [pid 10553] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10584] <... memfd_create resumed>) = 4 [pid 10553] <... futex resumed>) = 0 [pid 10584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10553] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10584] <... mmap resumed>) = 0x7ff7d3800000 [ 393.267979][T10564] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 393.389684][T10565] BTRFS info (device loop4): rebuilding free space tree [pid 10581] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10573] <... write resumed>) = 16777216 [pid 10573] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10573] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10573] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10573] ioctl(5, LOOP_CLR_FD) = 0 [ 393.459770][T10565] BTRFS info (device loop4): disabling free space tree [ 393.466748][T10565] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10573] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10573] close(5) = 0 [ 393.565020][T10565] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 393.596334][T10564] BTRFS info (device loop1): rebuilding free space tree [ 393.621130][T10564] BTRFS info (device loop1): disabling free space tree [pid 10573] close(4 [ 393.667816][T10564] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 393.706953][T10564] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10584] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10551] <... write resumed>) = 16776704 [pid 10551] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10551] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10573] <... close resumed>) = 0 [pid 10573] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10544] <... futex resumed>) = 0 [pid 10544] exit_group(0 [pid 10546] <... futex resumed>) = ? [pid 10544] <... exit_group resumed>) = ? [pid 10546] +++ exited with 0 +++ [pid 10573] +++ exited with 0 +++ [pid 10544] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10544, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=60 /* 0.60 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10615 ./strace-static-x86_64: Process 10615 attached [pid 10615] set_robust_list(0x5555693e0760, 24) = 0 [pid 10615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10615] setpgid(0, 0) = 0 [pid 10615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10615] write(3, "1000", 4) = 4 [pid 10615] close(3executing program ) = 0 [pid 10615] write(1, "executing program\n", 18) = 18 [pid 10615] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10615] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10615] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10615] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10615] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10615] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10616 attached => {parent_tid=[10616]}, 88) = 10616 [pid 10615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10616] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10615] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10616] <... rseq resumed>) = 0 [pid 10616] set_robust_list(0x7ff7dbc929a0, 24 [pid 10615] <... futex resumed>) = 0 [pid 10616] <... set_robust_list resumed>) = 0 [pid 10615] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10616] memfd_create("syzkaller", 0) = 3 [pid 10616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10581] <... write resumed>) = 16777216 [pid 10581] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 10581] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10581] close(4) = 0 [pid 10581] close(5) = 0 [pid 10581] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 393.999798][T10581] loop0: detected capacity change from 0 to 32768 [pid 10581] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10584] <... write resumed>) = 16777216 [ 394.049109][T10581] BTRFS: device /dev/loop0 (7:0) using temp-fsid 7845becd-9a16-4525-93c1-edce2a1851a7 [ 394.067199][T10581] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10581) [ 394.080719][T10564] BTRFS info (device loop1): last unmount of filesystem 27547473-e969-47fc-a721-45b292f9047e [pid 10584] munmap(0x7ff7d3800000, 138412032 [pid 10557] <... creat resumed>) = 3 [pid 10557] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10584] <... munmap resumed>) = 0 [ 394.081680][T10565] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10557] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10584] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 10584] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10584] close(4) = 0 [pid 10584] close(5) = 0 [pid 10584] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 394.130966][T10581] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 394.143831][T10581] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 394.145537][T10584] loop3: detected capacity change from 0 to 32768 [pid 10584] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10565] <... mount resumed>) = -1 ENOTDIR (Not a directory) [ 394.190494][T10584] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10584) [pid 10565] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10564] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10565] ioctl(4, LOOP_CLR_FD [pid 10564] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10565] <... ioctl resumed>) = 0 [pid 10565] close(4 [pid 10564] <... openat resumed>) = 4 [pid 10564] ioctl(4, LOOP_CLR_FD) = 0 [pid 10564] close(4) = 0 [ 394.397075][T10584] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10616] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10564] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10542] <... futex resumed>) = 0 [pid 10564] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10542] exit_group(0 [pid 10564] <... futex resumed>) = ? [pid 10542] <... exit_group resumed>) = ? [pid 10564] +++ exited with 0 +++ [pid 10543] <... futex resumed>) = ? [pid 10543] +++ exited with 0 +++ [pid 10542] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10542, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=90 /* 0.90 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10635 attached , child_tidptr=0x5555693e0750) = 10635 [ 394.449112][T10581] BTRFS info (device loop0): rebuilding free space tree [ 394.465062][T10584] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 10635] set_robust_list(0x5555693e0760, 24) = 0 [pid 10635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10635] setpgid(0, 0) = 0 [pid 10635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10635] write(3, "1000", 4) = 4 [pid 10635] close(3) = 0 executing program [pid 10635] write(1, "executing program\n", 18) = 18 [pid 10635] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10635] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10635] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [ 394.509331][T10581] BTRFS info (device loop0): disabling free space tree [ 394.516664][T10581] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10635] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10565] <... close resumed>) = 0 [pid 10565] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10540] <... futex resumed>) = 0 [pid 10540] exit_group(0) = ? [pid 10635] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10541] <... futex resumed>) = ? [pid 10541] +++ exited with 0 +++ [pid 10635] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10635] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10565] +++ exited with 0 +++ [pid 10540] +++ exited with 0 +++ [ 394.570183][T10581] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10635] <... clone3 resumed> => {parent_tid=[10645]}, 88) = 10645 [pid 10635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10635] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 10645 attached ) = 0 [pid 10635] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10645] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10645] set_robust_list(0x7ff7dbc929a0, 24 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10540, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=111 /* 1.11 s */} --- [pid 10645] <... set_robust_list resumed>) = 0 [pid 10645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10645] memfd_create("syzkaller", 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10645] <... memfd_create resumed>) = 3 [pid 5850] <... openat resumed>) = 3 [pid 10645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 10645] <... mmap resumed>) = 0x7ff7d3800000 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10650 attached [pid 10650] set_robust_list(0x5555693e0760, 24 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 10650 [pid 10650] <... set_robust_list resumed>) = 0 [pid 10650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10650] setpgid(0, 0) = 0 [pid 10650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 394.659747][T10581] BTRFS info (device loop0): last unmount of filesystem 7845becd-9a16-4525-93c1-edce2a1851a7 [pid 10650] write(3, "1000", 4) = 4 [pid 10650] close(3) = 0 executing program [pid 10650] write(1, "executing program\n", 18) = 18 [pid 10650] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10650] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10650] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10650] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10650] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10650] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10653]}, 88) = 10653 [pid 10650] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10650] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10650] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10653 attached [pid 10653] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10653] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 394.737897][T10584] BTRFS info (device loop3): rebuilding free space tree [pid 10653] memfd_create("syzkaller", 0 [pid 10581] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10653] <... memfd_create resumed>) = 3 [pid 10653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10581] ioctl(4, LOOP_CLR_FD) = 0 [ 394.858177][T10584] BTRFS info (device loop3): disabling free space tree [ 394.865252][T10584] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 394.935458][T10584] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10581] close(4 [pid 10616] <... write resumed>) = 16777216 [pid 10616] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 395.048968][T10584] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10616] ioctl(4, LOOP_CLR_FD) = 0 [pid 10616] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10616] close(4) = 0 [pid 10616] close(3 [pid 10584] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10584] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10584] ioctl(4, LOOP_CLR_FD) = 0 [pid 10584] close(4 [pid 10581] <... close resumed>) = 0 [pid 10581] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10545] <... futex resumed>) = 0 [pid 10581] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10545] exit_group(0 [pid 10581] <... futex resumed>) = ? [pid 10551] <... futex resumed>) = ? [pid 10545] <... exit_group resumed>) = ? [pid 10581] +++ exited with 0 +++ [pid 10551] +++ exited with 0 +++ [pid 10545] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10545, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=123 /* 1.23 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 10653] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5843] <... restart_syscall resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 10654 attached [pid 10654] set_robust_list(0x5555693e0760, 24 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 10654 [pid 10654] <... set_robust_list resumed>) = 0 [pid 10654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10654] setpgid(0, 0) = 0 [pid 10654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10654] write(3, "1000", 4) = 4 [pid 10654] close(3executing program ) = 0 [pid 10654] write(1, "executing program\n", 18) = 18 [pid 10654] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10654] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10654] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10654] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10654] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10654] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10655 attached [pid 10655] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10655] set_robust_list(0x7ff7dbc929a0, 24 [pid 10654] <... clone3 resumed> => {parent_tid=[10655]}, 88) = 10655 [pid 10655] <... set_robust_list resumed>) = 0 [pid 10654] rt_sigprocmask(SIG_SETMASK, [], [pid 10655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10654] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10655] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10654] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10655] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10655] memfd_create("syzkaller", 0 [pid 10654] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10616] <... close resumed>) = 0 [pid 10655] <... memfd_create resumed>) = 3 [pid 10616] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10584] <... close resumed>) = 0 [pid 10655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10616] <... futex resumed>) = 1 [pid 10615] <... futex resumed>) = 0 [pid 10584] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10655] <... mmap resumed>) = 0x7ff7d3800000 [pid 10616] creat("./bus", 000 [pid 10615] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10584] <... futex resumed>) = 1 [pid 10553] <... futex resumed>) = 0 [pid 10616] <... creat resumed>) = 3 [pid 10615] <... futex resumed>) = 0 [pid 10584] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10553] exit_group(0 [pid 10616] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10615] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10584] <... futex resumed>) = ? [pid 10557] <... futex resumed>) = ? [pid 10553] <... exit_group resumed>) = ? [pid 10616] <... futex resumed>) = 0 [pid 10615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10584] +++ exited with 0 +++ [pid 10557] +++ exited with 0 +++ [pid 10553] +++ exited with 0 +++ [pid 10616] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10615] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10553, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=92 /* 0.92 s */} --- [pid 10616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10615] <... futex resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 10616] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10615] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10656 ./strace-static-x86_64: Process 10656 attached [pid 10656] set_robust_list(0x5555693e0760, 24) = 0 [pid 10656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10656] setpgid(0, 0) = 0 [pid 10656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10656] write(3, "1000", 4executing program ) = 4 [pid 10656] close(3) = 0 [pid 10656] write(1, "executing program\n", 18) = 18 [pid 10656] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10656] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10656] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10656] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10656] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10656] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10657 attached => {parent_tid=[10657]}, 88) = 10657 [pid 10656] rt_sigprocmask(SIG_SETMASK, [], [pid 10657] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10656] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10657] <... rseq resumed>) = 0 [pid 10657] set_robust_list(0x7ff7dbc929a0, 24 [pid 10656] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10657] <... set_robust_list resumed>) = 0 [pid 10657] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10657] memfd_create("syzkaller", 0 [pid 10615] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10615] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10657] <... memfd_create resumed>) = 3 [pid 10656] <... futex resumed>) = 0 [pid 10615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10656] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10657] <... mmap resumed>) = 0x7ff7d3800000 [pid 10615] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10615] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10615] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10615] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10658]}, 88) = 10658 ./strace-static-x86_64: Process 10658 attached [pid 10615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10615] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10658] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10615] <... futex resumed>) = 0 [pid 10658] <... rseq resumed>) = 0 [pid 10615] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10658] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10658] memfd_create("syzkaller", 0) = 4 [pid 10658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10645] <... write resumed>) = 16777216 [pid 10645] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10653] <... write resumed>) = 16777216 [pid 10653] munmap(0x7ff7d3800000, 138412032 [pid 10645] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10645] ioctl(4, LOOP_SET_FD, 3 [pid 10653] <... munmap resumed>) = 0 [pid 10645] <... ioctl resumed>) = 0 [pid 10645] close(3) = 0 [pid 10645] close(4) = 0 [pid 10645] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10645] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 395.879582][T10645] loop1: detected capacity change from 0 to 32768 [pid 10653] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10653] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10653] close(3) = 0 [pid 10653] close(4) = 0 [pid 10653] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 395.935644][T10653] loop4: detected capacity change from 0 to 32768 [pid 10653] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 396.066148][T10645] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 396.089654][T10645] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10655] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 396.194929][T10653] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10658] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10616] <... write resumed>) = 16776704 [pid 10616] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 396.255147][T10653] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10616] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10645] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10645] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10645] ioctl(3, LOOP_CLR_FD) = 0 [pid 10645] close(3 [pid 10655] <... write resumed>) = 16777216 [pid 10653] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10655] munmap(0x7ff7d3800000, 138412032 [pid 10653] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 10653] ioctl(3, LOOP_CLR_FD) = 0 [ 396.438173][T10645] bcachefs: bch2_fs_get_tree() error: EINVAL [ 396.472083][T10653] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10653] close(3 [pid 10655] <... munmap resumed>) = 0 [pid 10655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10655] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10655] close(3) = 0 [pid 10655] close(4) = 0 [pid 10655] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 396.555023][T10655] loop0: detected capacity change from 0 to 32768 [pid 10655] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10657] <... write resumed>) = 16777216 [pid 10657] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10657] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10657] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10657] close(3) = 0 [pid 10657] close(4) = 0 [ 396.687769][T10655] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 396.716535][T10655] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 396.727441][T10657] loop3: detected capacity change from 0 to 32768 [pid 10657] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10657] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10658] <... write resumed>) = 16777216 [pid 10658] munmap(0x7ff7d3800000, 138412032 [pid 10653] <... close resumed>) = 0 [pid 10653] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10650] <... futex resumed>) = 0 [pid 10653] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10650] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10653] <... futex resumed>) = 0 [pid 10650] <... futex resumed>) = 1 [pid 10650] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10653] creat("./bus", 000 [pid 10658] <... munmap resumed>) = 0 [pid 10645] <... close resumed>) = 0 [pid 10658] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10645] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10658] ioctl(5, LOOP_SET_FD, 4 [pid 10645] <... futex resumed>) = 1 [pid 10635] <... futex resumed>) = 0 [pid 10645] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10635] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10645] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10635] <... futex resumed>) = 0 [pid 10635] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10645] creat("./bus", 000 [pid 10650] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10650] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10650] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10650] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10650] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10687]}, 88) = 10687 [pid 10658] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10650] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 10687 attached [pid 10658] ioctl(5, LOOP_CLR_FD [pid 10650] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10658] <... ioctl resumed>) = 0 [pid 10650] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10650] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10687] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10687] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10687] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10687] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10650] <... futex resumed>) = 0 [pid 10650] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10650] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10687] memfd_create("syzkaller", 0) = 4 [pid 10687] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10658] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10658] close(5) = 0 [pid 10658] close(4 [pid 10655] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 10655] ioctl(3, LOOP_CLR_FD) = 0 [pid 10655] close(3 [pid 10635] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10635] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10635] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10635] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10635] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10688]}, 88) = 10688 [pid 10635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10635] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 10688 attached ) = 0 [pid 10688] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10635] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10688] <... rseq resumed>) = 0 [ 396.874640][T10657] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 396.900339][T10655] bcachefs: bch2_fs_get_tree() error: EINVAL [ 396.909794][T10657] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10688] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10688] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10688] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10688] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10635] <... futex resumed>) = 0 [pid 10635] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10688] memfd_create("syzkaller", 0 [pid 10635] <... futex resumed>) = 0 [pid 10635] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10688] <... memfd_create resumed>) = 4 [pid 10688] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10655] <... close resumed>) = 0 [pid 10655] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10654] <... futex resumed>) = 0 [pid 10654] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10654] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10655] creat("./bus", 000 [pid 10657] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10657] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 10657] ioctl(3, LOOP_CLR_FD) = 0 [pid 10657] close(3 [pid 10658] <... close resumed>) = 0 [pid 10654] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10658] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10654] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10658] <... futex resumed>) = 1 [pid 10654] <... futex resumed>) = 0 [pid 10615] <... futex resumed>) = 0 [ 397.183497][T10657] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10658] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10615] exit_group(0 [pid 10658] <... futex resumed>) = ? [pid 10654] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10616] <... futex resumed>) = ? [pid 10615] <... exit_group resumed>) = ? [pid 10658] +++ exited with 0 +++ [pid 10654] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10654] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10654] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10689 attached [pid 10689] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10654] <... clone3 resumed> => {parent_tid=[10689]}, 88) = 10689 [pid 10689] <... rseq resumed>) = 0 [pid 10616] +++ exited with 0 +++ [pid 10689] set_robust_list(0x7ff7dbc719a0, 24 [pid 10654] rt_sigprocmask(SIG_SETMASK, [], [pid 10689] <... set_robust_list resumed>) = 0 [pid 10654] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10689] rt_sigprocmask(SIG_SETMASK, [], [pid 10654] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10689] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10654] <... futex resumed>) = 0 [pid 10689] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10654] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10689] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10689] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10654] <... futex resumed>) = 0 [pid 10689] memfd_create("syzkaller", 0 [pid 10654] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10689] <... memfd_create resumed>) = 4 [pid 10654] <... futex resumed>) = 0 [pid 10689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10654] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10689] <... mmap resumed>) = 0x7ff7d3800000 [pid 10615] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10615, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=101 /* 1.01 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10690 ./strace-static-x86_64: Process 10690 attached [pid 10690] set_robust_list(0x5555693e0760, 24) = 0 [pid 10690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10690] setpgid(0, 0) = 0 [pid 10690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10690] write(3, "1000", 4) = 4 [pid 10690] close(3) = 0 executing program [pid 10690] write(1, "executing program\n", 18) = 18 [pid 10690] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10690] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10690] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10655] <... creat resumed>) = 3 [pid 10653] <... creat resumed>) = 3 [pid 10645] <... creat resumed>) = 3 [pid 10653] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10655] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10653] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10690] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10690] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10655] <... futex resumed>) = 0 [pid 10655] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10645] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10690] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10645] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10690] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10690] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10691 attached => {parent_tid=[10691]}, 88) = 10691 [pid 10691] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10690] rt_sigprocmask(SIG_SETMASK, [], [pid 10691] <... rseq resumed>) = 0 [pid 10690] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10690] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10691] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10690] <... futex resumed>) = 0 [pid 10691] rt_sigprocmask(SIG_SETMASK, [], [pid 10690] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10691] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10691] memfd_create("syzkaller", 0) = 3 [pid 10691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10688] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10687] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10657] <... close resumed>) = 0 [pid 10657] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10656] <... futex resumed>) = 0 [pid 10656] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10657] creat("./bus", 000 [pid 10656] <... futex resumed>) = 0 [pid 10657] <... creat resumed>) = 3 [pid 10656] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10657] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10656] <... futex resumed>) = 0 [pid 10657] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10656] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10656] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10656] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10656] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10656] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10656] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10692 attached => {parent_tid=[10692]}, 88) = 10692 [pid 10692] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10656] rt_sigprocmask(SIG_SETMASK, [], [pid 10692] <... rseq resumed>) = 0 [pid 10692] set_robust_list(0x7ff7dbc719a0, 24 [pid 10656] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10692] <... set_robust_list resumed>) = 0 [pid 10692] rt_sigprocmask(SIG_SETMASK, [], [pid 10656] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10692] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10656] <... futex resumed>) = 0 [pid 10656] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10692] memfd_create("syzkaller", 0) = 4 [pid 10692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10688] <... write resumed>) = 16777216 [pid 10688] munmap(0x7ff7d3800000, 138412032 [pid 10689] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10688] <... munmap resumed>) = 0 [pid 10688] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10688] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10688] close(4) = 0 [pid 10688] close(5) = 0 [pid 10688] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 397.780604][T10688] loop1: detected capacity change from 0 to 32768 [ 397.837851][T10688] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10688) [pid 10688] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10691] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 397.922121][T10688] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 397.975963][T10688] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 10692] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10687] <... write resumed>) = 16777216 [pid 10687] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10687] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 10687] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10687] close(4) = 0 [pid 10687] close(5) = 0 [ 398.169760][T10687] loop4: detected capacity change from 0 to 32768 [pid 10687] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10687] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10691] <... write resumed>) = 16777216 [pid 10691] munmap(0x7ff7d3800000, 138412032 [pid 10692] <... write resumed>) = 16777216 [ 398.238569][T10688] BTRFS info (device loop1): rebuilding free space tree [ 398.248794][T10687] BTRFS: device /dev/loop4 (7:4) using temp-fsid 6ff16750-a540-407a-a1bd-3e160b556d0d [pid 10692] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10691] <... munmap resumed>) = 0 [pid 10691] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10692] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10691] <... openat resumed>) = 4 [pid 10692] <... openat resumed>) = 5 [pid 10691] ioctl(4, LOOP_SET_FD, 3 [pid 10692] ioctl(5, LOOP_SET_FD, 4 [pid 10691] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10691] ioctl(4, LOOP_CLR_FD) = 0 [ 398.293658][T10688] BTRFS info (device loop1): disabling free space tree [ 398.305747][T10687] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10687) [ 398.324233][T10692] loop3: detected capacity change from 0 to 32768 [pid 10692] <... ioctl resumed>) = 0 [pid 10691] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10692] close(4 [pid 10691] close(4 [pid 10692] <... close resumed>) = 0 [pid 10691] <... close resumed>) = 0 [pid 10692] close(5 [pid 10691] close(3 [pid 10692] <... close resumed>) = 0 [pid 10692] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 398.334732][T10688] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 398.360932][T10692] BTRFS: device /dev/loop3 (7:3) using temp-fsid c57f91ba-4add-40ff-b10c-b2dcd0905d53 [ 398.377707][T10688] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 398.391062][T10687] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 398.401569][T10692] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10692) [ 398.430890][T10687] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 10692] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10689] <... write resumed>) = 16777216 [ 398.453609][T10692] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 398.477113][T10692] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 10689] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 10689] ioctl(5, LOOP_SET_FD, 4 [pid 10691] <... close resumed>) = 0 [pid 10689] <... ioctl resumed>) = 0 [pid 10689] close(4) = 0 [pid 10689] close(5 [pid 10691] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10689] <... close resumed>) = 0 [pid 10691] <... futex resumed>) = 1 [pid 10690] <... futex resumed>) = 0 [pid 10689] mkdir("./bus", 0777 [pid 10690] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10689] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10690] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 398.542966][T10689] loop0: detected capacity change from 0 to 32768 [pid 10689] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 398.583799][T10689] BTRFS: device /dev/loop0 (7:0) using temp-fsid 5b3e8c31-a18b-4fbc-a9b4-2d60073041c7 [pid 10691] creat("./bus", 000 [pid 10690] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10690] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10690] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10690] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10690] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10729]}, 88) = 10729 [pid 10690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10690] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10690] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10729 attached [pid 10729] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10729] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10729] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10729] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10690] <... futex resumed>) = 0 [pid 10690] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10729] memfd_create("syzkaller", 0 [pid 10690] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10729] <... memfd_create resumed>) = 4 [pid 10729] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 398.622306][T10689] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10689) [pid 10657] <... write resumed>) = 16776704 [pid 10657] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 398.722542][T10689] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 398.733418][T10688] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 398.761547][T10687] BTRFS info (device loop4): rebuilding free space tree [ 398.773813][T10689] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 398.789364][T10692] BTRFS info (device loop3): rebuilding free space tree [ 398.820656][T10687] BTRFS info (device loop4): disabling free space tree [ 398.841499][T10692] BTRFS info (device loop3): disabling free space tree [ 398.858228][T10692] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 398.867778][T10687] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 398.877681][T10692] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 398.878344][T10687] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10657] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10688] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10688] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10688] ioctl(4, LOOP_CLR_FD) = 0 [ 399.069451][T10689] BTRFS info (device loop0): rebuilding free space tree [ 399.145362][T10689] BTRFS info (device loop0): disabling free space tree [ 399.177844][T10689] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10688] close(4 [pid 10729] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10691] <... creat resumed>) = 3 [pid 10691] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 399.208276][T10689] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 399.222383][T10687] BTRFS info (device loop4): last unmount of filesystem 6ff16750-a540-407a-a1bd-3e160b556d0d [ 399.233932][T10692] BTRFS info (device loop3): last unmount of filesystem c57f91ba-4add-40ff-b10c-b2dcd0905d53 [pid 10691] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10688] <... close resumed>) = 0 [ 399.261301][T10689] BTRFS info (device loop0): last unmount of filesystem 5b3e8c31-a18b-4fbc-a9b4-2d60073041c7 [pid 10688] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10687] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10688] <... futex resumed>) = 1 [pid 10635] <... futex resumed>) = 0 [pid 10635] exit_group(0 [pid 10645] <... futex resumed>) = ? [pid 10635] <... exit_group resumed>) = ? [pid 10692] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10645] +++ exited with 0 +++ [pid 10692] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10687] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10687] ioctl(4, LOOP_CLR_FD) = 0 [pid 10687] close(4 [pid 10692] ioctl(4, LOOP_CLR_FD [pid 10688] +++ exited with 0 +++ [pid 10635] +++ exited with 0 +++ [pid 10692] <... ioctl resumed>) = 0 [pid 10692] close(4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10635, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=76 /* 0.76 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10758 ./strace-static-x86_64: Process 10758 attached [pid 10689] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10689] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10758] set_robust_list(0x5555693e0760, 24 [pid 10689] <... openat resumed>) = 4 [pid 10758] <... set_robust_list resumed>) = 0 [pid 10758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10689] ioctl(4, LOOP_CLR_FD [pid 10758] setpgid(0, 0 [pid 10689] <... ioctl resumed>) = 0 [pid 10758] <... setpgid resumed>) = 0 [pid 10689] close(4 [pid 10758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10758] write(3, "1000", 4) = 4 [pid 10758] close(3) = 0 executing program [pid 10758] write(1, "executing program\n", 18) = 18 [pid 10758] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10758] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10758] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10758] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10758] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10758] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10759 attached [pid 10759] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10758] <... clone3 resumed> => {parent_tid=[10759]}, 88) = 10759 [pid 10759] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10758] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10759] rt_sigprocmask(SIG_SETMASK, [], [pid 10758] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10759] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10759] memfd_create("syzkaller", 0) = 3 [pid 10758] <... futex resumed>) = 0 [pid 10759] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10758] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10687] <... close resumed>) = 0 [pid 10687] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10650] <... futex resumed>) = 0 [pid 10687] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10650] exit_group(0) = ? [pid 10653] <... futex resumed>) = ? [pid 10687] <... futex resumed>) = ? [pid 10653] +++ exited with 0 +++ [pid 10687] +++ exited with 0 +++ [pid 10650] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10650, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=108 /* 1.08 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 10692] <... close resumed>) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 10760 [pid 10689] <... close resumed>) = 0 ./strace-static-x86_64: Process 10760 attached [pid 10692] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10689] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10760] set_robust_list(0x5555693e0760, 24 [pid 10692] <... futex resumed>) = 1 [pid 10689] <... futex resumed>) = 1 [pid 10656] <... futex resumed>) = 0 [pid 10654] <... futex resumed>) = 0 [pid 10692] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10760] <... set_robust_list resumed>) = 0 [pid 10729] <... write resumed>) = 16777216 [pid 10689] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10656] exit_group(0 [pid 10654] exit_group(0 [pid 10760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10729] munmap(0x7ff7d3800000, 138412032 [pid 10692] <... futex resumed>) = ? [pid 10689] <... futex resumed>) = ? [pid 10657] <... futex resumed>) = ? [pid 10656] <... exit_group resumed>) = ? [pid 10655] <... futex resumed>) = ? [pid 10654] <... exit_group resumed>) = ? [pid 10692] +++ exited with 0 +++ [pid 10655] +++ exited with 0 +++ [pid 10689] +++ exited with 0 +++ [pid 10654] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10654, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=77 /* 0.77 s */} --- [pid 10760] <... prctl resumed>) = 0 [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10760] setpgid(0, 0 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 10761 [pid 10760] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 10761 attached [pid 10760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10761] set_robust_list(0x5555693e0760, 24) = 0 [pid 10761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10760] <... openat resumed>) = 3 [pid 10761] <... prctl resumed>) = 0 [pid 10760] write(3, "1000", 4 [pid 10761] setpgid(0, 0 [pid 10760] <... write resumed>) = 4 executing program [pid 10761] <... setpgid resumed>) = 0 [pid 10760] close(3 [pid 10729] <... munmap resumed>) = 0 [pid 10761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10760] <... close resumed>) = 0 [pid 10760] write(1, "executing program\n", 18 [pid 10657] +++ exited with 0 +++ [pid 10656] +++ exited with 0 +++ [pid 10760] <... write resumed>) = 18 [pid 10760] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10656, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=125 /* 1.25 s */} --- [pid 10761] <... openat resumed>) = 3 [pid 10760] <... futex resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 10761] write(3, "1000", 4 [pid 10760] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10729] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10760] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], executing program [pid 10729] <... openat resumed>) = 5 [pid 10761] <... write resumed>) = 4 [pid 10760] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 10760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10729] ioctl(5, LOOP_SET_FD, 4 [pid 10761] close(3 [pid 10760] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10729] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10761] <... close resumed>) = 0 [pid 10760] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10729] ioctl(5, LOOP_CLR_FD [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10761] write(1, "executing program\n", 18 [pid 10760] <... mprotect resumed>) = 0 [pid 10729] <... ioctl resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 10761] <... write resumed>) = 18 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 10761] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10760] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 10761] <... futex resumed>) = 0 [pid 10760] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5847] close(3 [pid 10761] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 10760] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10729] ioctl(5, LOOP_SET_FD, 4 [pid 5847] <... close resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10762 attached [pid 10761] <... rt_sigaction resumed>NULL, 8) = 0 [pid 10729] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10762] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053./strace-static-x86_64: Process 10763 attached ) = 0 [pid 10761] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10760] <... clone3 resumed> => {parent_tid=[10762]}, 88) = 10762 [pid 10729] close(5 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 10763 [pid 10763] set_robust_list(0x5555693e0760, 24 [pid 10762] set_robust_list(0x7ff7dbc929a0, 24 [pid 10761] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10760] rt_sigprocmask(SIG_SETMASK, [], [pid 10729] <... close resumed>) = 0 [pid 10763] <... set_robust_list resumed>) = 0 [pid 10762] <... set_robust_list resumed>) = 0 [pid 10761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10760] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10729] close(4 [pid 10762] rt_sigprocmask(SIG_SETMASK, [], [pid 10761] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10762] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10760] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10761] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10762] memfd_create("syzkaller", 0 [pid 10761] <... mprotect resumed>) = 0 [pid 10760] <... futex resumed>) = 0 [pid 10760] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 10761] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10763] <... prctl resumed>) = 0 [pid 10762] <... memfd_create resumed>) = 3 [pid 10761] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10763] setpgid(0, 0 [pid 10762] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10761] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 10763] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 10764 attached [pid 10762] <... mmap resumed>) = 0x7ff7d3800000 [pid 10764] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10764] <... rseq resumed>) = 0 [pid 10761] <... clone3 resumed> => {parent_tid=[10764]}, 88) = 10764 [pid 10764] set_robust_list(0x7ff7dbc929a0, 24 [pid 10761] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10763] <... openat resumed>) = 3 [pid 10761] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10764] <... set_robust_list resumed>) = 0 [pid 10763] write(3, "1000", 4 [pid 10761] <... futex resumed>) = 0 [pid 10759] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10764] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10761] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10763] <... write resumed>) = 4 [pid 10764] memfd_create("syzkaller", 0) = 3 [pid 10763] close(3 [pid 10764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10763] <... close resumed>) = 0 executing program [pid 10763] write(1, "executing program\n", 18) = 18 [pid 10763] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10763] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10763] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10763] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10763] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10763] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10765 attached [pid 10765] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10763] <... clone3 resumed> => {parent_tid=[10765]}, 88) = 10765 [pid 10765] <... rseq resumed>) = 0 [pid 10765] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10765] rt_sigprocmask(SIG_SETMASK, [], [pid 10763] rt_sigprocmask(SIG_SETMASK, [], [pid 10765] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10765] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10763] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10763] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10765] <... futex resumed>) = 0 [pid 10763] <... futex resumed>) = 1 [pid 10765] memfd_create("syzkaller", 0 [pid 10763] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10765] <... memfd_create resumed>) = 3 [pid 10765] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10729] <... close resumed>) = 0 [pid 10729] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10729] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10690] <... futex resumed>) = 0 [pid 10690] exit_group(0 [pid 10691] <... futex resumed>) = ? [pid 10690] <... exit_group resumed>) = ? [pid 10691] +++ exited with 0 +++ [pid 10729] <... futex resumed>) = ? [pid 10729] +++ exited with 0 +++ [pid 10690] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10690, si_uid=0, si_status=0, si_utime=21 /* 0.21 s */, si_stime=76 /* 0.76 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10766 attached [pid 10766] set_robust_list(0x5555693e0760, 24) = 0 [pid 10766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 10766 executing program [pid 10766] setpgid(0, 0) = 0 [pid 10766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10766] write(3, "1000", 4) = 4 [pid 10766] close(3) = 0 [pid 10766] write(1, "executing program\n", 18) = 18 [pid 10766] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10766] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10766] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10766] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10766] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10766] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10766] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10767 attached => {parent_tid=[10767]}, 88) = 10767 [pid 10766] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10767] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10766] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10767] <... rseq resumed>) = 0 [pid 10766] <... futex resumed>) = 0 [pid 10766] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10767] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10767] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10767] memfd_create("syzkaller", 0) = 3 [pid 10767] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10764] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10762] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10765] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10759] <... write resumed>) = 16777216 [pid 10759] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10759] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10759] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10759] close(3) = 0 [pid 10759] close(4) = 0 [pid 10759] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 400.368776][T10759] loop1: detected capacity change from 0 to 32768 [ 400.510315][T10759] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10759] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 400.557322][T10759] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10767] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10764] <... write resumed>) = 16777216 [pid 10764] munmap(0x7ff7d3800000, 138412032 [pid 10765] <... write resumed>) = 16777216 [pid 10765] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10765] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10765] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10764] <... munmap resumed>) = 0 [pid 10765] close(3) = 0 [pid 10765] close(4) = 0 [pid 10765] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 10765] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10764] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10764] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10764] close(3) = 0 [pid 10764] close(4) = 0 [pid 10764] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 400.661308][T10765] loop3: detected capacity change from 0 to 32768 [ 400.692616][T10764] loop0: detected capacity change from 0 to 32768 [pid 10764] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10762] <... write resumed>) = 16777216 [ 400.800868][T10759] bcachefs: bch2_fs_get_tree() error: EINVAL [ 400.811403][T10765] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10762] munmap(0x7ff7d3800000, 138412032 [pid 10759] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10762] <... munmap resumed>) = 0 [pid 10759] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10762] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10759] <... openat resumed>) = 3 [pid 10762] ioctl(4, LOOP_SET_FD, 3 [pid 10759] ioctl(3, LOOP_CLR_FD) = 0 [ 400.843525][T10765] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 400.856150][T10762] loop4: detected capacity change from 0 to 32768 [ 400.856547][T10764] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10759] close(3 [pid 10762] <... ioctl resumed>) = 0 [pid 10762] close(3) = 0 [pid 10762] close(4) = 0 [pid 10762] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 400.887917][T10764] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10762] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10767] <... write resumed>) = 16777216 [pid 10767] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10767] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10767] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10767] ioctl(4, LOOP_CLR_FD) = 0 [pid 10767] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10767] close(4) = 0 [ 401.049108][T10765] bcachefs: bch2_fs_get_tree() error: EINVAL [ 401.061624][T10764] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10767] close(3 [pid 10765] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10764] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10765] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10764] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10765] <... openat resumed>) = 3 [pid 10764] <... openat resumed>) = 3 [pid 10765] ioctl(3, LOOP_CLR_FD [pid 10764] ioctl(3, LOOP_CLR_FD [pid 10765] <... ioctl resumed>) = 0 [pid 10764] <... ioctl resumed>) = 0 [pid 10765] close(3 [pid 10764] close(3 [pid 10759] <... close resumed>) = 0 [pid 10759] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10758] <... futex resumed>) = 0 [pid 10758] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10759] creat("./bus", 000 [pid 10758] <... futex resumed>) = 0 [pid 10759] <... creat resumed>) = 3 [pid 10758] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10759] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10759] <... futex resumed>) = 0 [pid 10758] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10759] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10758] <... futex resumed>) = 0 [ 401.130107][T10762] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 401.139723][T10762] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10758] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10758] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10758] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10758] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10758] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10796 attached => {parent_tid=[10796]}, 88) = 10796 [pid 10758] rt_sigprocmask(SIG_SETMASK, [], [pid 10796] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10758] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10796] <... rseq resumed>) = 0 [pid 10758] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10796] set_robust_list(0x7ff7dbc719a0, 24 [pid 10758] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10796] <... set_robust_list resumed>) = 0 [pid 10796] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10796] memfd_create("syzkaller", 0) = 4 [pid 10796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10767] <... close resumed>) = 0 [pid 10767] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10766] <... futex resumed>) = 0 [pid 10767] creat("./bus", 000 [pid 10766] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10766] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10766] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10766] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10766] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10762] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10762] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10766] <... mprotect resumed>) = 0 [pid 10762] <... openat resumed>) = 3 [pid 10766] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10762] ioctl(3, LOOP_CLR_FD [pid 10766] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10762] <... ioctl resumed>) = 0 [pid 10766] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10797]}, 88) = 10797 ./strace-static-x86_64: Process 10797 attached [pid 10766] rt_sigprocmask(SIG_SETMASK, [], [pid 10762] close(3 [pid 10766] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10797] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10766] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10797] <... rseq resumed>) = 0 [pid 10766] <... futex resumed>) = 0 [pid 10766] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 401.389825][T10762] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10797] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10797] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10797] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10766] <... futex resumed>) = 0 [pid 10797] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10766] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10797] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10766] <... futex resumed>) = 0 [pid 10797] memfd_create("syzkaller", 0 [pid 10766] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10797] <... memfd_create resumed>) = 4 [pid 10764] <... close resumed>) = 0 [pid 10797] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10764] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10797] <... mmap resumed>) = 0x7ff7d3800000 [pid 10764] <... futex resumed>) = 1 [pid 10761] <... futex resumed>) = 0 [pid 10761] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10764] creat("./bus", 000 [pid 10761] <... futex resumed>) = 0 [pid 10761] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10765] <... close resumed>) = 0 [pid 10765] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10763] <... futex resumed>) = 0 [pid 10763] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10763] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10765] creat("./bus", 000 [pid 10761] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10761] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10761] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10761] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10761] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10798]}, 88) = 10798 [pid 10761] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10761] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10761] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10798 attached [pid 10798] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10798] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10798] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10798] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10798] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10761] <... futex resumed>) = 0 [pid 10798] memfd_create("syzkaller", 0 [pid 10761] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10798] <... memfd_create resumed>) = 4 [pid 10761] <... futex resumed>) = 0 [pid 10798] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10761] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10798] <... mmap resumed>) = 0x7ff7d3800000 [pid 10763] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10763] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10763] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10763] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10763] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10799 attached => {parent_tid=[10799]}, 88) = 10799 [pid 10763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10763] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10763] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10799] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 10799] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10799] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10799] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10763] <... futex resumed>) = 0 [pid 10763] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10799] memfd_create("syzkaller", 0 [pid 10763] <... futex resumed>) = 0 [pid 10763] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10799] <... memfd_create resumed>) = 4 [pid 10799] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10796] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10762] <... close resumed>) = 0 [pid 10762] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10760] <... futex resumed>) = 0 [pid 10762] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10760] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10762] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10760] <... futex resumed>) = 0 [pid 10762] creat("./bus", 000 [pid 10760] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10760] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10760] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10760] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10760] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10800 attached [pid 10800] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10760] <... clone3 resumed> => {parent_tid=[10800]}, 88) = 10800 [pid 10800] <... rseq resumed>) = 0 [pid 10760] rt_sigprocmask(SIG_SETMASK, [], [pid 10800] set_robust_list(0x7ff7dbc719a0, 24 [pid 10760] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10800] <... set_robust_list resumed>) = 0 [pid 10760] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10800] rt_sigprocmask(SIG_SETMASK, [], [pid 10760] <... futex resumed>) = 0 [pid 10800] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10760] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10800] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10800] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10760] <... futex resumed>) = 0 [pid 10800] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10760] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10800] <... futex resumed>) = 0 [pid 10760] <... futex resumed>) = 1 [pid 10800] memfd_create("syzkaller", 0 [pid 10760] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10800] <... memfd_create resumed>) = 4 [pid 10800] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10797] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10798] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10799] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10759] <... write resumed>) = 16776704 [pid 10796] <... write resumed>) = 16777216 [pid 10759] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10759] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10796] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10796] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10796] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10796] close(4) = 0 [pid 10796] close(5) = 0 [pid 10796] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10796] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 402.268137][T10796] loop1: detected capacity change from 0 to 32768 [ 402.278722][T10796] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10796) [ 402.328836][T10796] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 402.358912][T10796] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 10800] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10798] <... write resumed>) = 16777216 [pid 10798] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10797] <... write resumed>) = 16777216 [pid 10797] munmap(0x7ff7d3800000, 138412032 [pid 10798] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 10798] ioctl(5, LOOP_SET_FD, 4 [pid 10799] <... write resumed>) = 16777216 [pid 10798] <... ioctl resumed>) = 0 [pid 10799] munmap(0x7ff7d3800000, 138412032 [pid 10797] <... munmap resumed>) = 0 [pid 10798] close(4) = 0 [pid 10798] close(5) = 0 [pid 10798] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10798] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10797] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 10797] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10797] ioctl(5, LOOP_CLR_FD) = 0 [ 402.475593][T10798] loop0: detected capacity change from 0 to 32768 [ 402.500047][T10796] BTRFS info (device loop1): rebuilding free space tree [ 402.512313][T10798] BTRFS: device /dev/loop0 (7:0) using temp-fsid 2042feb4-58dc-4579-89ab-58d693b7f094 [pid 10799] <... munmap resumed>) = 0 [pid 10797] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10797] close(5) = 0 [pid 10797] close(4 [pid 10799] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [ 402.539499][T10796] BTRFS info (device loop1): disabling free space tree [ 402.546636][T10798] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10798) [ 402.563375][T10798] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 402.567805][T10796] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 402.574146][T10798] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 402.594262][T10799] loop3: detected capacity change from 0 to 32768 [pid 10799] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10799] close(4) = 0 [pid 10799] close(5) = 0 [pid 10799] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10799] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10800] <... write resumed>) = 16777216 [ 402.671413][T10796] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 402.687297][T10799] BTRFS: device /dev/loop3 (7:3) using temp-fsid c67d2874-7cce-4b57-bd38-045bfead61c2 [pid 10800] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10800] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10765] <... creat resumed>) = 3 [pid 10765] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10762] <... creat resumed>) = 3 [pid 10800] <... openat resumed>) = 5 [pid 10765] <... futex resumed>) = 0 [ 402.757773][T10799] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10799) [pid 10762] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10765] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10762] <... futex resumed>) = 0 [pid 10800] ioctl(5, LOOP_SET_FD, 4 [pid 10762] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10800] <... ioctl resumed>) = 0 [pid 10764] <... creat resumed>) = 3 [pid 10764] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10764] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10767] <... creat resumed>) = 3 [pid 10767] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10767] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10800] close(4) = 0 [pid 10800] close(5) = 0 [pid 10800] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 402.798692][T10800] loop4: detected capacity change from 0 to 32768 [ 402.830146][T10796] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 402.877976][T10800] BTRFS: device /dev/loop4 (7:4) using temp-fsid 95be1f6d-01f2-4f4f-a2c4-04313b20b454 [ 402.887770][T10799] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 402.910891][T10800] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10800) [pid 10800] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10797] <... close resumed>) = 0 [pid 10797] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10797] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10766] <... futex resumed>) = 0 [pid 10766] exit_group(0) = ? [pid 10767] <... futex resumed>) = ? [pid 10797] <... futex resumed>) = ? [pid 10767] +++ exited with 0 +++ [ 402.937828][T10798] BTRFS info (device loop0): rebuilding free space tree [ 402.959173][T10799] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 10797] +++ exited with 0 +++ [pid 10766] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10766, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=78 /* 0.78 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10837 attached , child_tidptr=0x5555693e0750) = 10837 [pid 10837] set_robust_list(0x5555693e0760, 24 [pid 10796] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10837] <... set_robust_list resumed>) = 0 [pid 10837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10837] setpgid(0, 0 [pid 10796] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 10837] <... setpgid resumed>) = 0 [ 403.000978][T10798] BTRFS info (device loop0): disabling free space tree [ 403.024789][T10800] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 403.038719][T10798] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10796] <... openat resumed>) = 4 [pid 10796] ioctl(4, LOOP_CLR_FD) = 0 [pid 10796] close(4 [pid 10837] <... openat resumed>) = 3 [pid 10837] write(3, "1000", 4) = 4 executing program [pid 10837] close(3) = 0 [pid 10837] write(1, "executing program\n", 18) = 18 [pid 10837] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10837] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10837] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10837] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [ 403.098209][T10800] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 403.111985][T10798] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10837] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10837] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10845 attached => {parent_tid=[10845]}, 88) = 10845 [pid 10845] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10837] rt_sigprocmask(SIG_SETMASK, [], [pid 10845] <... rseq resumed>) = 0 [pid 10845] set_robust_list(0x7ff7dbc929a0, 24 [pid 10837] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10845] <... set_robust_list resumed>) = 0 [pid 10837] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10845] rt_sigprocmask(SIG_SETMASK, [], [pid 10837] <... futex resumed>) = 0 [pid 10845] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10837] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10845] memfd_create("syzkaller", 0) = 3 [pid 10845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 403.220545][T10798] BTRFS info (device loop0): last unmount of filesystem 2042feb4-58dc-4579-89ab-58d693b7f094 [ 403.234118][T10799] BTRFS info (device loop3): rebuilding free space tree [ 403.315502][T10799] BTRFS info (device loop3): disabling free space tree [pid 10796] <... close resumed>) = 0 [pid 10796] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10758] <... futex resumed>) = 0 [pid 10796] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10758] exit_group(0 [pid 10796] <... futex resumed>) = ? [pid 10759] <... futex resumed>) = ? [pid 10758] <... exit_group resumed>) = ? [pid 10759] +++ exited with 0 +++ [ 403.368003][T10799] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 403.379097][T10799] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 403.389431][T10800] BTRFS info (device loop4): rebuilding free space tree [pid 10798] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10798] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10798] ioctl(4, LOOP_CLR_FD) = 0 [pid 10798] close(4 [pid 10796] +++ exited with 0 +++ [pid 10758] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10758, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=116 /* 1.16 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 10845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10867 attached , child_tidptr=0x5555693e0750) = 10867 [pid 10867] set_robust_list(0x5555693e0760, 24) = 0 [pid 10867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10867] setpgid(0, 0) = 0 [pid 10867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10867] write(3, "1000", 4) = 4 [ 403.478152][T10799] BTRFS info (device loop3): last unmount of filesystem c67d2874-7cce-4b57-bd38-045bfead61c2 [ 403.493635][T10800] BTRFS info (device loop4): disabling free space tree [pid 10867] close(3) = 0 executing program [pid 10867] write(1, "executing program\n", 18) = 18 [pid 10867] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10867] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10799] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10867] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10799] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10867] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10799] <... openat resumed>) = 4 [ 403.519092][T10800] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10867] <... mmap resumed>) = 0x7ff7dbc72000 [pid 10799] ioctl(4, LOOP_CLR_FD [pid 10867] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 10799] <... ioctl resumed>) = 0 [pid 10867] <... mprotect resumed>) = 0 [pid 10799] close(4 [pid 10867] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10867] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10868]}, 88) = 10868 [pid 10867] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 10868 attached NULL, 8) = 0 [pid 10868] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10867] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10868] <... rseq resumed>) = 0 [pid 10867] <... futex resumed>) = 0 [pid 10868] set_robust_list(0x7ff7dbc929a0, 24 [pid 10867] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10868] <... set_robust_list resumed>) = 0 [pid 10868] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10868] memfd_create("syzkaller", 0) = 3 [ 403.585786][T10800] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 403.698581][T10800] BTRFS info (device loop4): last unmount of filesystem 95be1f6d-01f2-4f4f-a2c4-04313b20b454 [pid 10798] <... close resumed>) = 0 [pid 10798] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10761] <... futex resumed>) = 0 [pid 10800] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10761] exit_group(0 [pid 10764] <... futex resumed>) = ? [pid 10761] <... exit_group resumed>) = ? [pid 10764] +++ exited with 0 +++ [pid 10798] +++ exited with 0 +++ [pid 10761] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10761, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=95 /* 0.95 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 10799] <... close resumed>) = 0 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 10800] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 10800] <... openat resumed>) = 4 [pid 10799] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] close(3) = 0 [pid 10800] ioctl(4, LOOP_CLR_FD [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10800] <... ioctl resumed>) = 0 [pid 10800] close(4 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 10869 ./strace-static-x86_64: Process 10869 attached [pid 10869] set_robust_list(0x5555693e0760, 24 [pid 10799] <... futex resumed>) = 1 [pid 10763] <... futex resumed>) = 0 [pid 10763] exit_group(0) = ? [pid 10869] <... set_robust_list resumed>) = 0 [pid 10869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10869] setpgid(0, 0) = 0 [pid 10869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10869] write(3, "1000", 4 [pid 10799] +++ exited with 0 +++ [pid 10869] <... write resumed>) = 4 [pid 10869] close(3 [pid 10765] <... futex resumed>) = ? executing program [pid 10869] <... close resumed>) = 0 [pid 10869] write(1, "executing program\n", 18) = 18 [pid 10869] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10869] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10869] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10765] +++ exited with 0 +++ [pid 10763] +++ exited with 0 +++ [pid 10869] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10763, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=93 /* 0.93 s */} --- [pid 10869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10869] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10869] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10869] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10870 attached => {parent_tid=[10870]}, 88) = 10870 [pid 10870] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10869] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10869] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10869] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5847] <... openat resumed>) = 3 [pid 10870] <... rseq resumed>) = 0 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 10870] set_robust_list(0x7ff7dbc929a0, 24 [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 10870] <... set_robust_list resumed>) = 0 [pid 5847] close(3) = 0 [pid 10870] rt_sigprocmask(SIG_SETMASK, [], [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10871 attached [pid 10870] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10871] set_robust_list(0x5555693e0760, 24) = 0 executing program [pid 10870] memfd_create("syzkaller", 0 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 10871 [pid 10871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10871] setpgid(0, 0) = 0 [pid 10871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10870] <... memfd_create resumed>) = 3 [pid 10871] <... openat resumed>) = 3 [pid 10870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10871] write(3, "1000", 4) = 4 [pid 10870] <... mmap resumed>) = 0x7ff7d3800000 [pid 10871] close(3) = 0 [pid 10871] write(1, "executing program\n", 18) = 18 [pid 10871] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10871] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10871] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10871] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10871] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10871] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10871] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10872 attached => {parent_tid=[10872]}, 88) = 10872 [pid 10872] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10871] rt_sigprocmask(SIG_SETMASK, [], [pid 10872] <... rseq resumed>) = 0 [pid 10871] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10872] set_robust_list(0x7ff7dbc929a0, 24 [pid 10871] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10872] <... set_robust_list resumed>) = 0 [pid 10871] <... futex resumed>) = 0 [pid 10872] rt_sigprocmask(SIG_SETMASK, [], [pid 10871] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10872] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10872] memfd_create("syzkaller", 0) = 3 [pid 10872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10800] <... close resumed>) = 0 [pid 10800] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10760] <... futex resumed>) = 0 [pid 10760] exit_group(0) = ? [pid 10762] <... futex resumed>) = ? [pid 10800] +++ exited with 0 +++ [pid 10762] +++ exited with 0 +++ [pid 10760] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10760, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=86 /* 0.86 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10845] <... write resumed>) = 16777216 [pid 5850] <... openat resumed>) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10873 attached , child_tidptr=0x5555693e0750) = 10873 [pid 10845] munmap(0x7ff7d3800000, 138412032 [pid 10873] set_robust_list(0x5555693e0760, 24) = 0 [pid 10873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10873] setpgid(0, 0) = 0 [pid 10873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10873] write(3, "1000", 4) = 4 [pid 10868] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10873] close(3) = 0 executing program [pid 10873] write(1, "executing program\n", 18) = 18 [pid 10845] <... munmap resumed>) = 0 [pid 10845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10845] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10873] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10845] ioctl(4, LOOP_CLR_FD [pid 10873] <... futex resumed>) = 0 [pid 10845] <... ioctl resumed>) = 0 [pid 10873] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10873] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 10845] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10845] close(4) = 0 [pid 10845] close(3 [pid 10873] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10873] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10873] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10874 attached [pid 10874] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10873] <... clone3 resumed> => {parent_tid=[10874]}, 88) = 10874 [pid 10874] <... rseq resumed>) = 0 [pid 10873] rt_sigprocmask(SIG_SETMASK, [], [pid 10874] set_robust_list(0x7ff7dbc929a0, 24 [pid 10873] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10874] <... set_robust_list resumed>) = 0 [pid 10873] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10874] rt_sigprocmask(SIG_SETMASK, [], [pid 10873] <... futex resumed>) = 0 [pid 10874] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10873] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10874] memfd_create("syzkaller", 0) = 3 [pid 10874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10845] <... close resumed>) = 0 [pid 10872] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10845] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10837] <... futex resumed>) = 0 [pid 10837] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10845] creat("./bus", 000 [pid 10837] <... futex resumed>) = 0 [pid 10837] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10845] <... creat resumed>) = 3 [pid 10845] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10845] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10837] <... futex resumed>) = 0 [pid 10837] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10845] <... futex resumed>) = 0 [pid 10837] <... futex resumed>) = 1 [pid 10845] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10837] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 10837] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10837] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10837] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10837] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10875 attached => {parent_tid=[10875]}, 88) = 10875 [pid 10837] rt_sigprocmask(SIG_SETMASK, [], [pid 10875] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10837] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10875] <... rseq resumed>) = 0 [pid 10837] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10875] set_robust_list(0x7ff7dbc719a0, 24 [pid 10837] <... futex resumed>) = 0 [pid 10875] <... set_robust_list resumed>) = 0 [pid 10837] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10875] memfd_create("syzkaller", 0) = 4 [pid 10875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10868] <... write resumed>) = 16777216 [pid 10868] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10868] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10868] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10868] close(3) = 0 [pid 10868] close(4) = 0 [pid 10868] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 404.617965][T10868] loop1: detected capacity change from 0 to 32768 [pid 10868] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10874] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10872] <... write resumed>) = 16777216 [pid 10872] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10872] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10872] ioctl(4, LOOP_SET_FD, 3 [pid 10870] <... write resumed>) = 16777216 [pid 10872] <... ioctl resumed>) = 0 [pid 10870] munmap(0x7ff7d3800000, 138412032 [pid 10872] close(3) = 0 [pid 10872] close(4) = 0 [pid 10872] mkdir("./file1", 0777 [pid 10870] <... munmap resumed>) = 0 [ 404.798638][T10868] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 404.813353][T10872] loop3: detected capacity change from 0 to 32768 [ 404.820467][T10868] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10872] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10870] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10872] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10870] <... openat resumed>) = 4 [pid 10870] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10870] close(3) = 0 [pid 10870] close(4) = 0 [pid 10870] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 404.880590][T10870] loop0: detected capacity change from 0 to 32768 [pid 10870] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 404.974761][T10872] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 405.027864][T10872] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 405.037086][T10870] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 405.047479][T10870] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10875] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10868] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10868] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10868] ioctl(3, LOOP_CLR_FD) = 0 [pid 10868] close(3 [pid 10874] <... write resumed>) = 16777216 [ 405.085134][T10868] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10874] munmap(0x7ff7d3800000, 138412032 [pid 10872] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10872] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 10872] ioctl(3, LOOP_CLR_FD) = 0 [pid 10872] close(3 [pid 10874] <... munmap resumed>) = 0 [ 405.154849][T10872] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10874] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 10874] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10874] close(3) = 0 [pid 10874] close(4) = 0 [pid 10874] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 405.236020][T10874] loop4: detected capacity change from 0 to 32768 [ 405.345947][T10870] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10874] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10870] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10872] <... close resumed>) = 0 [pid 10872] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10871] <... futex resumed>) = 0 [pid 10872] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10871] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10871] <... futex resumed>) = 0 [pid 10872] creat("./bus", 000 [pid 10871] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10870] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 10870] ioctl(3, LOOP_CLR_FD) = 0 [pid 10870] close(3 [pid 10868] <... close resumed>) = 0 [pid 10868] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10867] <... futex resumed>) = 0 [pid 10868] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10867] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10867] <... futex resumed>) = 0 [pid 10868] creat("./bus", 000 [pid 10867] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10871] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10871] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10871] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10871] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10875] <... write resumed>) = 16777216 [pid 10871] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10875] munmap(0x7ff7d3800000, 138412032 [pid 10871] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10871] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10904 attached => {parent_tid=[10904]}, 88) = 10904 [pid 10875] <... munmap resumed>) = 0 [pid 10871] rt_sigprocmask(SIG_SETMASK, [], [pid 10875] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10871] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10875] <... openat resumed>) = 5 [pid 10871] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10904] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10875] ioctl(5, LOOP_SET_FD, 4 [pid 10871] <... futex resumed>) = 0 [pid 10867] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10904] <... rseq resumed>) = 0 [pid 10875] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10871] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10867] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10904] set_robust_list(0x7ff7dbc719a0, 24 [pid 10875] ioctl(5, LOOP_CLR_FD [pid 10867] <... futex resumed>) = 0 [pid 10904] <... set_robust_list resumed>) = 0 [pid 10875] <... ioctl resumed>) = 0 [pid 10867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10904] rt_sigprocmask(SIG_SETMASK, [], [pid 10867] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10904] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10867] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10904] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10875] ioctl(5, LOOP_SET_FD, 4 [pid 10867] <... mprotect resumed>) = 0 [pid 10904] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10875] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 10867] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10904] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10875] close(5 [pid 10904] <... futex resumed>) = 1 [pid 10871] <... futex resumed>) = 0 [pid 10867] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10904] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10875] <... close resumed>) = 0 [pid 10871] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [ 405.531708][T10874] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10867] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10905 attached [pid 10904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10875] close(4 [pid 10871] <... futex resumed>) = 0 [pid 10870] <... close resumed>) = 0 [pid 10904] memfd_create("syzkaller", 0 [pid 10871] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10867] <... clone3 resumed> => {parent_tid=[10905]}, 88) = 10905 [pid 10904] <... memfd_create resumed>) = 4 [pid 10867] rt_sigprocmask(SIG_SETMASK, [], [pid 10904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10867] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10904] <... mmap resumed>) = 0x7ff7d3800000 [pid 10867] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10905] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10870] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10867] <... futex resumed>) = 0 [pid 10867] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10905] <... rseq resumed>) = 0 [pid 10870] <... futex resumed>) = 1 [pid 10869] <... futex resumed>) = 0 [pid 10905] set_robust_list(0x7ff7dbc719a0, 24 [pid 10870] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10869] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10905] <... set_robust_list resumed>) = 0 [pid 10870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10869] <... futex resumed>) = 0 [pid 10905] rt_sigprocmask(SIG_SETMASK, [], [pid 10870] creat("./bus", 000 [pid 10869] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10905] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 405.575423][T10874] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10905] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10905] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10867] <... futex resumed>) = 0 [pid 10905] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10867] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 10867] <... futex resumed>) = 0 [pid 10905] memfd_create("syzkaller", 0 [pid 10867] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10905] <... memfd_create resumed>) = 4 [pid 10905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10869] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10869] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10869] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10869] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10869] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10906 attached [pid 10906] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10869] <... clone3 resumed> => {parent_tid=[10906]}, 88) = 10906 [pid 10906] <... rseq resumed>) = 0 [pid 10869] rt_sigprocmask(SIG_SETMASK, [], [pid 10906] set_robust_list(0x7ff7dbc719a0, 24 [pid 10869] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10906] <... set_robust_list resumed>) = 0 [pid 10869] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10906] rt_sigprocmask(SIG_SETMASK, [], [pid 10869] <... futex resumed>) = 0 [pid 10906] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10869] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10906] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10906] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10869] <... futex resumed>) = 0 [pid 10906] <... futex resumed>) = 1 [pid 10869] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10869] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10906] memfd_create("syzkaller", 0) = 4 [pid 10906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10874] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10875] <... close resumed>) = 0 [pid 10874] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 10874] ioctl(3, LOOP_CLR_FD) = 0 [pid 10904] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 405.798284][T10874] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10874] close(3 [pid 10875] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10837] <... futex resumed>) = 0 [pid 10875] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10845] <... write resumed>) = 16776704 [pid 10845] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10845] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10837] exit_group(0 [pid 10875] <... futex resumed>) = ? [pid 10845] <... futex resumed>) = ? [pid 10837] <... exit_group resumed>) = ? [pid 10875] +++ exited with 0 +++ [pid 10845] +++ exited with 0 +++ [pid 10837] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10837, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=106 /* 1.06 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10907 attached [pid 10907] set_robust_list(0x5555693e0760, 24 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 10907 [pid 10907] <... set_robust_list resumed>) = 0 [pid 10907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10907] setpgid(0, 0) = 0 [pid 10907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10907] write(3, "1000", 4) = 4 [pid 10907] close(3) = 0 executing program [pid 10907] write(1, "executing program\n", 18) = 18 [pid 10907] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10907] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10907] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10908 attached => {parent_tid=[10908]}, 88) = 10908 [pid 10908] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10907] rt_sigprocmask(SIG_SETMASK, [], [pid 10908] <... rseq resumed>) = 0 [pid 10907] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10908] set_robust_list(0x7ff7dbc929a0, 24 [pid 10907] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10908] <... set_robust_list resumed>) = 0 [pid 10907] <... futex resumed>) = 0 [pid 10908] rt_sigprocmask(SIG_SETMASK, [], [pid 10907] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10908] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10908] memfd_create("syzkaller", 0) = 3 [pid 10908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10874] <... close resumed>) = 0 [pid 10874] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10873] <... futex resumed>) = 0 [pid 10874] creat("./bus", 000 [pid 10873] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10905] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10873] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10906] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10873] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10873] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10873] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10873] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10909 attached [pid 10909] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10873] <... clone3 resumed> => {parent_tid=[10909]}, 88) = 10909 [pid 10909] <... rseq resumed>) = 0 [pid 10873] rt_sigprocmask(SIG_SETMASK, [], [pid 10909] set_robust_list(0x7ff7dbc719a0, 24 [pid 10873] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10909] <... set_robust_list resumed>) = 0 [pid 10873] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10909] rt_sigprocmask(SIG_SETMASK, [], [pid 10873] <... futex resumed>) = 0 [pid 10909] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10873] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10909] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10909] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10873] <... futex resumed>) = 0 [pid 10909] memfd_create("syzkaller", 0 [pid 10873] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10909] <... memfd_create resumed>) = 4 [pid 10873] <... futex resumed>) = 0 [pid 10909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10873] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10909] <... mmap resumed>) = 0x7ff7d3800000 [pid 10874] <... creat resumed>) = 3 [pid 10870] <... creat resumed>) = 3 [pid 10868] <... creat resumed>) = 3 [pid 10874] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10870] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10868] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10874] <... futex resumed>) = 0 [pid 10870] <... futex resumed>) = 0 [pid 10868] <... futex resumed>) = 0 [pid 10874] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10870] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10868] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10904] <... write resumed>) = 16777216 [pid 10872] <... creat resumed>) = 3 [pid 10904] munmap(0x7ff7d3800000, 138412032 [pid 10872] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10872] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10904] <... munmap resumed>) = 0 [pid 10904] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 10904] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10904] close(4) = 0 [pid 10904] close(5) = 0 [pid 10904] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 406.392227][T10904] loop3: detected capacity change from 0 to 32768 [ 406.415294][T10904] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10904) [pid 10904] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10905] <... write resumed>) = 16777216 [ 406.497693][T10904] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 406.523197][T10904] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 10905] munmap(0x7ff7d3800000, 138412032 [pid 10908] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10905] <... munmap resumed>) = 0 [pid 10905] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 10905] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10905] close(4) = 0 [pid 10905] close(5) = 0 [pid 10905] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10905] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 406.602778][T10905] loop1: detected capacity change from 0 to 32768 [ 406.664150][T10905] BTRFS: device /dev/loop1 (7:1) using temp-fsid 3616fc26-d751-4ef9-bb21-77418e8b61c7 [ 406.674845][T10904] BTRFS info (device loop3): rebuilding free space tree [pid 10909] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10906] <... write resumed>) = 16777216 [ 406.715063][T10904] BTRFS info (device loop3): disabling free space tree [ 406.724736][T10905] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (10905) [ 406.739763][T10904] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10906] munmap(0x7ff7d3800000, 138412032) = 0 [pid 10906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [ 406.757708][T10904] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10906] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10906] close(4) = 0 [pid 10906] close(5) = 0 [pid 10906] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 406.792494][T10906] loop0: detected capacity change from 0 to 32768 [ 406.799406][T10905] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 406.818519][T10904] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 406.837920][T10905] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 406.842488][T10906] BTRFS: device /dev/loop0 (7:0) using temp-fsid 5aff3a85-9a18-40d0-9037-096fd4cdbe78 [ 406.889092][T10906] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (10906) [ 407.002206][T10906] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10906] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10904] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10904] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10904] ioctl(4, LOOP_CLR_FD) = 0 [ 407.067071][T10906] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 407.099556][T10905] BTRFS info (device loop1): rebuilding free space tree [pid 10904] close(4 [pid 10908] <... write resumed>) = 16777216 [pid 10908] munmap(0x7ff7d3800000, 138412032 [pid 10909] <... write resumed>) = 16777216 [pid 10908] <... munmap resumed>) = 0 [pid 10909] munmap(0x7ff7d3800000, 138412032 [pid 10908] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10908] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10908] ioctl(4, LOOP_CLR_FD) = 0 [ 407.172669][T10905] BTRFS info (device loop1): disabling free space tree [ 407.196601][T10905] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10908] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10908] close(4) = 0 [pid 10908] close(3 [pid 10909] <... munmap resumed>) = 0 [pid 10909] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 407.257862][T10905] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10909] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 10909] close(4) = 0 [pid 10909] close(5) = 0 [pid 10909] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 10909] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10904] <... close resumed>) = 0 [ 407.312619][T10909] loop4: detected capacity change from 0 to 32768 [ 407.340732][T10906] BTRFS info (device loop0): rebuilding free space tree [ 407.343496][T10909] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (10909) [pid 10904] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10904] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10871] <... futex resumed>) = 0 [pid 10871] exit_group(0 [pid 10904] <... futex resumed>) = ? [pid 10871] <... exit_group resumed>) = ? [pid 10904] +++ exited with 0 +++ [pid 10872] <... futex resumed>) = ? [pid 10872] +++ exited with 0 +++ [pid 10871] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10871, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=96 /* 0.96 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 407.376263][T10905] BTRFS info (device loop1): last unmount of filesystem 3616fc26-d751-4ef9-bb21-77418e8b61c7 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10958 attached , child_tidptr=0x5555693e0750) = 10958 executing program [pid 10958] set_robust_list(0x5555693e0760, 24) = 0 [pid 10958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10958] setpgid(0, 0) = 0 [pid 10958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10958] write(3, "1000", 4) = 4 [pid 10958] close(3) = 0 [pid 10958] write(1, "executing program\n", 18) = 18 [pid 10958] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10958] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10958] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10958] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10958] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 407.431930][T10906] BTRFS info (device loop0): disabling free space tree [ 407.443532][T10909] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10958] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10959 attached => {parent_tid=[10959]}, 88) = 10959 [pid 10959] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10958] rt_sigprocmask(SIG_SETMASK, [], [pid 10959] <... rseq resumed>) = 0 [pid 10958] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10958] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10959] set_robust_list(0x7ff7dbc929a0, 24 [pid 10958] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10959] <... set_robust_list resumed>) = 0 [pid 10959] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10959] memfd_create("syzkaller", 0) = 3 [pid 10959] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 407.474473][T10906] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 407.476942][T10909] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 10908] <... close resumed>) = 0 [pid 10908] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10907] <... futex resumed>) = 0 [pid 10907] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10908] creat("./bus", 000 [pid 10907] <... futex resumed>) = 0 [pid 10907] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10908] <... creat resumed>) = 3 [pid 10908] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10907] <... futex resumed>) = 0 [pid 10907] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10907] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10908] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10905] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10905] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10905] ioctl(4, LOOP_CLR_FD) = 0 [ 407.519677][T10906] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10905] close(4 [pid 10907] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10907] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10907] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[10968]}, 88) = 10968 ./strace-static-x86_64: Process 10968 attached [pid 10907] rt_sigprocmask(SIG_SETMASK, [], [pid 10968] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10907] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10968] <... rseq resumed>) = 0 [pid 10907] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10907] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10968] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10968] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10968] memfd_create("syzkaller", 0) = 4 [pid 10968] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 407.719674][T10909] BTRFS info (device loop4): rebuilding free space tree [pid 10905] <... close resumed>) = 0 [pid 10905] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10905] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10867] <... futex resumed>) = 0 [pid 10867] exit_group(0 [pid 10905] <... futex resumed>) = ? [pid 10868] <... futex resumed>) = ? [pid 10867] <... exit_group resumed>) = ? [ 407.813681][T10909] BTRFS info (device loop4): disabling free space tree [ 407.845811][T10909] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10905] +++ exited with 0 +++ [pid 10868] +++ exited with 0 +++ [pid 10867] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10867, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=86 /* 0.86 s */} --- [ 407.897101][T10909] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 10968] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10959] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10977 attached , child_tidptr=0x5555693e0750) = 10977 [pid 10977] set_robust_list(0x5555693e0760, 24) = 0 [pid 10977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10977] setpgid(0, 0) = 0 [pid 10977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10977] write(3, "1000", 4) = 4 [pid 10977] close(3) = 0 [pid 10977] write(1, "executing program\n", 18executing program ) = 18 [pid 10977] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10977] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10977] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10977] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10977] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 10978 attached [pid 10978] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10977] <... clone3 resumed> => {parent_tid=[10978]}, 88) = 10978 [pid 10978] <... rseq resumed>) = 0 [pid 10977] rt_sigprocmask(SIG_SETMASK, [], [pid 10978] set_robust_list(0x7ff7dbc929a0, 24 [pid 10977] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10978] <... set_robust_list resumed>) = 0 [pid 10977] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10978] rt_sigprocmask(SIG_SETMASK, [], [pid 10977] <... futex resumed>) = 0 [pid 10977] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10978] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10978] memfd_create("syzkaller", 0) = 3 [pid 10978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10908] <... write resumed>) = 16776704 [pid 10908] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 408.291519][T10906] BTRFS info (device loop0): last unmount of filesystem 5aff3a85-9a18-40d0-9037-096fd4cdbe78 [ 408.302580][T10909] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 10908] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10959] <... write resumed>) = 16777216 [pid 10968] <... write resumed>) = 16777216 [pid 10959] munmap(0x7ff7d3800000, 138412032 [pid 10968] munmap(0x7ff7d3800000, 138412032 [pid 10906] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10906] ioctl(4, LOOP_CLR_FD) = 0 [pid 10906] close(4 [pid 10959] <... munmap resumed>) = 0 [pid 10968] <... munmap resumed>) = 0 [pid 10959] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 10959] ioctl(4, LOOP_SET_FD, 3 [pid 10909] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 10909] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 10968] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10909] <... openat resumed>) = 4 [pid 10968] <... openat resumed>) = 5 [pid 10968] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10968] ioctl(5, LOOP_CLR_FD) = 0 [pid 10909] ioctl(4, LOOP_CLR_FD) = 0 [pid 10909] close(4 [pid 10968] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 10968] close(5) = 0 [pid 10968] close(4 [pid 10959] <... ioctl resumed>) = 0 [pid 10959] close(3) = 0 [pid 10959] close(4) = 0 [pid 10959] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 408.405216][T10959] loop3: detected capacity change from 0 to 32768 [pid 10959] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10978] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10909] <... close resumed>) = 0 [pid 10909] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10873] <... futex resumed>) = 0 [pid 10909] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10873] exit_group(0) = ? [pid 10909] <... futex resumed>) = ? [pid 10874] <... futex resumed>) = ? [pid 10909] +++ exited with 0 +++ [pid 10874] +++ exited with 0 +++ [pid 10873] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10873, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=84 /* 0.84 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10986 attached [pid 10986] set_robust_list(0x5555693e0760, 24 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 10986 [pid 10986] <... set_robust_list resumed>) = 0 [pid 10986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10986] setpgid(0, 0) = 0 [pid 10986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10968] <... close resumed>) = 0 [pid 10986] write(3, "1000", 4) = 4 [pid 10986] close(3) = 0 executing program [pid 10986] write(1, "executing program\n", 18 [pid 10968] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10968] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10986] <... write resumed>) = 18 [pid 10907] <... futex resumed>) = 0 [pid 10986] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10907] exit_group(0 [pid 10986] <... futex resumed>) = 0 [pid 10968] <... futex resumed>) = ? [pid 10908] <... futex resumed>) = ? [pid 10907] <... exit_group resumed>) = ? [pid 10986] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 10908] +++ exited with 0 +++ [pid 10986] <... rt_sigaction resumed>NULL, 8) = 0 [ 408.663317][T10959] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 408.698355][T10959] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10986] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10968] +++ exited with 0 +++ [pid 10907] +++ exited with 0 +++ [pid 10986] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10907, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=101 /* 1.01 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 10986] <... mprotect resumed>) = 0 [pid 10986] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 10986] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10986] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10986] <... clone3 resumed> => {parent_tid=[10987]}, 88) = 10987 [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 10988 [pid 10986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 10987 attached [pid 10986] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10986] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10987] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10987] set_robust_list(0x7ff7dbc929a0, 24./strace-static-x86_64: Process 10988 attached ) = 0 [pid 10987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10987] memfd_create("syzkaller", 0) = 3 [pid 10987] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10988] set_robust_list(0x5555693e0760, 24) = 0 [pid 10988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10988] setpgid(0, 0 [pid 10906] <... close resumed>) = 0 [pid 10988] <... setpgid resumed>) = 0 [pid 10988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] kill(-10869, SIGKILL [pid 10906] ???( [pid 5843] <... kill resumed>) = 0 [pid 10988] write(3, "1000", 4 [pid 5843] kill(10869, SIGKILL [pid 10988] <... write resumed>) = 4 [pid 10906] <... ??? resumed>) = ? [pid 10870] <... futex resumed>) = ? [pid 10869] <... futex resumed>) = ? [pid 5843] <... kill resumed>) = 0 [pid 10988] close(3 [pid 10906] +++ killed by SIGKILL +++ [pid 10870] +++ killed by SIGKILL +++ [pid 10869] +++ killed by SIGKILL +++ [pid 10988] <... close resumed>) = 0 [pid 10988] write(1, "executing program\n", 18executing program ) = 18 [pid 10988] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=10869, si_uid=0, si_status=SIGKILL, si_utime=15 /* 0.15 s */, si_stime=94 /* 0.94 s */} --- [pid 10988] <... futex resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10988] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 5843] <... openat resumed>) = 3 [pid 10988] <... rt_sigaction resumed>NULL, 8) = 0 [pid 10988] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5843] ioctl(3, LOOP_CLR_FD [pid 10988] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 10988] <... mmap resumed>) = 0x7ff7dbc72000 [pid 5843] close(3 [pid 10988] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5843] <... close resumed>) = 0 [pid 10988] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 10988] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10988] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 10989 ./strace-static-x86_64: Process 10990 attached [pid 10988] <... clone3 resumed> => {parent_tid=[10990]}, 88) = 10990 [pid 10990] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 10988] rt_sigprocmask(SIG_SETMASK, [], [pid 10990] <... rseq resumed>) = 0 [pid 10990] set_robust_list(0x7ff7dbc929a0, 24 [pid 10988] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10990] <... set_robust_list resumed>) = 0 [pid 10988] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10990] rt_sigprocmask(SIG_SETMASK, [], [pid 10988] <... futex resumed>) = 0 ./strace-static-x86_64: Process 10989 attached [pid 10990] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10988] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10990] memfd_create("syzkaller", 0 [pid 10989] set_robust_list(0x5555693e0760, 24 [pid 10990] <... memfd_create resumed>) = 3 [pid 10989] <... set_robust_list resumed>) = 0 [pid 10990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10990] <... mmap resumed>) = 0x7ff7d3800000 [pid 10989] setpgid(0, 0) = 0 [pid 10959] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10959] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 10989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10959] ioctl(3, LOOP_CLR_FD [pid 10989] <... openat resumed>) = 3 [pid 10989] write(3, "1000", 4) = 4 [pid 10959] <... ioctl resumed>) = 0 [pid 10989] close(3) = 0 executing program [pid 10959] close(3 [pid 10989] write(1, "executing program\n", 18) = 18 [pid 10989] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10989] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 10989] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 10989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 10989] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10989] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[10991]}, 88) = 10991 [ 408.850113][T10959] bcachefs: bch2_fs_get_tree() error: EINVAL ./strace-static-x86_64: Process 10991 attached [pid 10989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10989] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10989] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10991] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 10991] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 10991] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10991] memfd_create("syzkaller", 0 [pid 10978] <... write resumed>) = 16777216 [pid 10978] munmap(0x7ff7d3800000, 138412032 [pid 10991] <... memfd_create resumed>) = 3 [pid 10991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10978] <... munmap resumed>) = 0 [pid 10978] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 10978] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10978] close(3) = 0 [pid 10978] close(4) = 0 [pid 10978] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 408.998433][T10978] loop1: detected capacity change from 0 to 32768 [ 409.131725][T10978] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 10978] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10959] <... close resumed>) = 0 [pid 10959] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10959] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10958] <... futex resumed>) = 0 [ 409.175547][T10978] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10958] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10959] <... futex resumed>) = 0 [pid 10958] <... futex resumed>) = 1 [pid 10959] creat("./bus", 000 [pid 10958] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10990] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10987] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10958] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10958] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10958] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10958] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10958] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 10999 attached [pid 10999] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10958] <... clone3 resumed> => {parent_tid=[10999]}, 88) = 10999 [pid 10999] <... rseq resumed>) = 0 [pid 10958] rt_sigprocmask(SIG_SETMASK, [], [pid 10999] set_robust_list(0x7ff7dbc719a0, 24 [pid 10958] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10999] <... set_robust_list resumed>) = 0 [pid 10958] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10999] rt_sigprocmask(SIG_SETMASK, [], [pid 10958] <... futex resumed>) = 0 [pid 10999] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10958] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10999] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 10999] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10958] <... futex resumed>) = 0 [pid 10999] memfd_create("syzkaller", 0 [pid 10958] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10999] <... memfd_create resumed>) = 4 [pid 10958] <... futex resumed>) = 0 [pid 10999] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 10958] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10999] <... mmap resumed>) = 0x7ff7d3800000 [pid 10978] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10978] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 10978] ioctl(3, LOOP_CLR_FD) = 0 [pid 10978] close(3 [ 409.413503][T10978] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10959] <... creat resumed>) = 3 [pid 10959] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10959] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10978] <... close resumed>) = 0 [pid 10978] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10978] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10977] <... futex resumed>) = 0 [pid 10977] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10977] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10978] <... futex resumed>) = 0 [pid 10978] creat("./bus", 000) = 3 [pid 10978] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10978] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10977] <... futex resumed>) = 0 [pid 10977] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10978] <... futex resumed>) = 0 [pid 10977] <... futex resumed>) = 1 [pid 10978] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10977] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10999] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10977] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10977] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10977] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10990] <... write resumed>) = 16777216 [pid 10977] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10990] munmap(0x7ff7d3800000, 138412032 [pid 10987] <... write resumed>) = 16777216 [pid 10977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11000 attached [pid 10987] munmap(0x7ff7d3800000, 138412032 [pid 11000] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10977] <... clone3 resumed> => {parent_tid=[11000]}, 88) = 11000 [pid 11000] <... rseq resumed>) = 0 [pid 11000] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 10977] rt_sigprocmask(SIG_SETMASK, [], [pid 11000] rt_sigprocmask(SIG_SETMASK, [], [pid 10977] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11000] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 10977] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11000] memfd_create("syzkaller", 0 [pid 10977] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10990] <... munmap resumed>) = 0 [pid 10987] <... munmap resumed>) = 0 [pid 11000] <... memfd_create resumed>) = 4 [pid 10987] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 11000] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10991] <... write resumed>) = 16777216 [pid 10990] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 10987] <... openat resumed>) = 4 [pid 10990] <... openat resumed>) = 4 [pid 10990] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10990] ioctl(4, LOOP_CLR_FD) = 0 [pid 10990] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 10990] close(4 [pid 10991] munmap(0x7ff7d3800000, 138412032 [pid 10990] <... close resumed>) = 0 [pid 10987] ioctl(4, LOOP_SET_FD, 3 [pid 10990] close(3 [pid 10991] <... munmap resumed>) = 0 [pid 10987] <... ioctl resumed>) = 0 [pid 10987] close(3) = 0 [pid 10991] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10987] close(4) = 0 [pid 10987] mkdir("./file1", 0777 [pid 10991] <... openat resumed>) = 4 [pid 10991] ioctl(4, LOOP_SET_FD, 3 [pid 10987] <... mkdir resumed>) = -1 EEXIST (File exists) [ 409.884014][T10987] loop4: detected capacity change from 0 to 32768 [pid 10987] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10991] <... ioctl resumed>) = 0 [pid 10991] close(3) = 0 [pid 10991] close(4) = 0 [pid 10991] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 409.943235][T10991] loop0: detected capacity change from 0 to 32768 [ 410.062177][T10987] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 410.072043][T10987] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 410.086568][T10991] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 410.117531][T10991] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 10991] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 10990] <... close resumed>) = 0 [pid 10990] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10988] <... futex resumed>) = 0 [pid 10990] creat("./bus", 000 [pid 10988] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10988] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10999] <... write resumed>) = 16777216 [pid 10999] munmap(0x7ff7d3800000, 138412032 [pid 10988] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10988] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10999] <... munmap resumed>) = 0 [pid 10988] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10988] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10988] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10999] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 10988] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11015 attached [pid 11015] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10988] <... clone3 resumed> => {parent_tid=[11015]}, 88) = 11015 [pid 10988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10988] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10988] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11015] <... rseq resumed>) = 0 [pid 10999] <... openat resumed>) = 5 [pid 11015] set_robust_list(0x7ff7dbc719a0, 24 [pid 10999] ioctl(5, LOOP_SET_FD, 4 [pid 11015] <... set_robust_list resumed>) = 0 [pid 11015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11015] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11015] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10988] <... futex resumed>) = 0 [pid 10988] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11015] memfd_create("syzkaller", 0 [pid 10988] <... futex resumed>) = 0 [pid 11015] <... memfd_create resumed>) = 4 [pid 10988] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 10987] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10999] <... ioctl resumed>) = 0 [pid 10991] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 10999] close(4 [pid 10991] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 10987] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 11000] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10991] <... openat resumed>) = 3 [pid 10987] <... openat resumed>) = 3 [pid 10991] ioctl(3, LOOP_CLR_FD [pid 10987] ioctl(3, LOOP_CLR_FD [pid 10991] <... ioctl resumed>) = 0 [pid 10987] <... ioctl resumed>) = 0 [pid 10991] close(3 [ 410.284268][T10987] bcachefs: bch2_fs_get_tree() error: EINVAL [ 410.303486][T10999] loop3: detected capacity change from 0 to 32768 [ 410.314222][T10991] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 10987] close(3 [pid 10999] <... close resumed>) = 0 [pid 10999] close(5) = 0 [pid 10999] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 410.369953][T10999] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (10999) [ 410.457868][T10999] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 410.497839][T10999] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 10999] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11015] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10987] <... close resumed>) = 0 [pid 10987] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10986] <... futex resumed>) = 0 [pid 10987] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10986] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10986] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10991] <... close resumed>) = 0 [pid 10987] <... futex resumed>) = 0 [pid 10991] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10991] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10989] <... futex resumed>) = 0 [pid 10987] creat("./bus", 000 [pid 10989] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 10991] <... futex resumed>) = 0 [pid 10989] <... futex resumed>) = 1 [pid 10991] creat("./bus", 000 [ 410.718059][T10999] BTRFS info (device loop3): rebuilding free space tree [ 410.739137][T10999] BTRFS info (device loop3): disabling free space tree [ 410.757762][T10999] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 10989] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10986] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10986] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 10986] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10986] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 10986] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11032]}, 88) = 11032 [pid 10986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10986] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 11032 attached ) = 0 [pid 11032] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 10986] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11032] <... rseq resumed>) = 0 [pid 11032] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11032] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 10989] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11032] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 10989] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 11032] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10989] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11032] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10989] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10986] <... futex resumed>) = 0 [pid 10989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10986] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 10989] <... mmap resumed>) = 0x7ff7dbc51000 [pid 10989] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 10986] <... futex resumed>) = 1 [pid 11032] <... futex resumed>) = 0 [pid 10986] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11032] memfd_create("syzkaller", 0 [pid 10989] <... mprotect resumed>) = 0 [pid 11032] <... memfd_create resumed>) = 4 [pid 11032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 410.777852][T10999] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10989] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11032] <... mmap resumed>) = 0x7ff7d3800000 [pid 10989] <... rt_sigprocmask resumed>[], 8) = 0 [pid 10989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11033 attached => {parent_tid=[11033]}, 88) = 11033 [pid 10989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 10989] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10989] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11033] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11033] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11033] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11033] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10989] <... futex resumed>) = 0 [pid 10989] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11033] memfd_create("syzkaller", 0 [pid 10989] <... futex resumed>) = 0 [pid 11033] <... memfd_create resumed>) = 4 [pid 10989] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11000] <... write resumed>) = 16777216 [pid 10978] <... write resumed>) = 16776704 [pid 10978] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10978] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11000] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11000] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 11000] ioctl(5, LOOP_SET_FD, 4 [pid 11015] <... write resumed>) = 16777216 [pid 11000] <... ioctl resumed>) = 0 [pid 11000] close(4) = 0 [pid 11000] close(5) = 0 [pid 11000] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 11000] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11015] munmap(0x7ff7d3800000, 138412032) = 0 [ 411.032106][T11000] loop1: detected capacity change from 0 to 32768 [ 411.069927][T11000] BTRFS: device /dev/loop1 (7:1) using temp-fsid 42de128e-8c06-4571-b5b5-ec09d36fad62 [pid 11015] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 11015] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11015] ioctl(5, LOOP_CLR_FD) = 0 [pid 11015] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11015] close(5) = 0 [ 411.107889][T11000] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (11000) [ 411.187935][T11000] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11015] close(4 [ 411.228305][T11000] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 11032] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11033] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11015] <... close resumed>) = 0 [pid 10991] <... creat resumed>) = 3 [pid 10990] <... creat resumed>) = 3 [pid 10987] <... creat resumed>) = 3 [pid 10991] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10990] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10987] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10991] <... futex resumed>) = 0 [pid 10990] <... futex resumed>) = 0 [pid 10987] <... futex resumed>) = 0 [pid 10991] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10990] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10987] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11015] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 10988] <... futex resumed>) = 0 [pid 10988] exit_group(0) = ? [pid 11015] <... futex resumed>) = ? [pid 11015] +++ exited with 0 +++ [pid 10990] <... futex resumed>) = ? [pid 10990] +++ exited with 0 +++ [pid 10988] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10988, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=92 /* 0.92 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11046 attached , child_tidptr=0x5555693e0750) = 11046 [pid 11046] set_robust_list(0x5555693e0760, 24) = 0 [ 411.357140][T10999] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d executing program [pid 11046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11046] setpgid(0, 0) = 0 [pid 11046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11046] write(3, "1000", 4) = 4 [pid 11046] close(3) = 0 [pid 11046] write(1, "executing program\n", 18) = 18 [pid 11046] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11046] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11046] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11046] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11046] rt_sigprocmask(SIG_BLOCK, ~[], [pid 10999] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11046] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[11049]}, 88) = 11049 [pid 10999] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11046] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11046] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10999] <... openat resumed>) = 4 [pid 10999] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 11049 attached [pid 10999] close(4 [pid 11049] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 11049] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11049] memfd_create("syzkaller", 0) = 3 [pid 11049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 411.539914][T11000] BTRFS info (device loop1): rebuilding free space tree [pid 11033] <... write resumed>) = 16777216 [ 411.606669][T11000] BTRFS info (device loop1): disabling free space tree [ 411.638550][T11000] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 11033] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11033] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [ 411.677697][T11000] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11033] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11033] close(4) = 0 [pid 11033] close(5) = 0 [pid 11033] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 411.731076][T11033] loop0: detected capacity change from 0 to 32768 [ 411.738341][T11000] BTRFS info (device loop1): last unmount of filesystem 42de128e-8c06-4571-b5b5-ec09d36fad62 [pid 11033] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 10999] <... close resumed>) = 0 [pid 11032] <... write resumed>) = 16777216 [pid 10999] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10958] <... futex resumed>) = 0 [pid 10999] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10958] exit_group(0 [pid 10999] <... futex resumed>) = ? [pid 10959] <... futex resumed>) = ? [pid 10958] <... exit_group resumed>) = ? [pid 10999] +++ exited with 0 +++ [pid 10959] +++ exited with 0 +++ [ 411.779934][T11033] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (11033) [pid 11032] munmap(0x7ff7d3800000, 138412032 [pid 10958] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10958, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=94 /* 0.94 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD [pid 11000] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 5847] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 11000] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 11052 ./strace-static-x86_64: Process 11052 attached [pid 11000] <... openat resumed>) = 4 [pid 11052] set_robust_list(0x5555693e0760, 24 [pid 11032] <... munmap resumed>) = 0 [pid 11000] ioctl(4, LOOP_CLR_FD) = 0 [pid 11052] <... set_robust_list resumed>) = 0 [pid 11000] close(4 [pid 11052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11032] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 11032] ioctl(5, LOOP_SET_FD, 4 [pid 11052] <... prctl resumed>) = 0 [ 411.855880][T11033] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 411.888638][T11032] loop4: detected capacity change from 0 to 32768 [pid 11052] setpgid(0, 0) = 0 [pid 11052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11032] <... ioctl resumed>) = 0 [pid 11032] close(4) = 0 [pid 11032] close(5) = 0 [pid 11032] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 411.899488][T11033] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 11032] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11052] write(3, "1000", 4) = 4 [pid 11052] close(3) = 0 [pid 11052] write(1, "executing program\n", 18executing program ) = 18 [pid 11052] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11052] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11052] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11052] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11052] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[11058]}, 88) = 11058 [ 411.928545][T11032] BTRFS: device /dev/loop4 (7:4) using temp-fsid 26127f4a-7542-4846-917c-ed6f36d9327b [pid 11052] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 11058 attached NULL, 8) = 0 [pid 11049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11058] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11052] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11058] <... rseq resumed>) = 0 [pid 11052] <... futex resumed>) = 0 [pid 11058] set_robust_list(0x7ff7dbc929a0, 24 [pid 11052] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11058] <... set_robust_list resumed>) = 0 [pid 11058] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11058] memfd_create("syzkaller", 0) = 3 [pid 11058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 411.983946][T11032] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (11032) [ 412.042870][T11032] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11049] <... write resumed>) = 16777216 [ 412.118480][T11032] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 412.201644][T11033] BTRFS info (device loop0): rebuilding free space tree [pid 11049] munmap(0x7ff7d3800000, 138412032 [pid 11058] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11049] <... munmap resumed>) = 0 [pid 11049] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 11049] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 412.247869][T11033] BTRFS info (device loop0): disabling free space tree [ 412.254843][T11033] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 11049] ioctl(4, LOOP_CLR_FD) = 0 [pid 11049] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11049] close(4) = 0 [pid 11049] close(3 [pid 11000] <... close resumed>) = 0 [pid 11000] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10977] <... futex resumed>) = 0 [pid 11000] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10977] exit_group(0 [pid 11000] <... futex resumed>) = ? [pid 10978] <... futex resumed>) = ? [pid 10977] <... exit_group resumed>) = ? [pid 10978] +++ exited with 0 +++ [pid 11000] +++ exited with 0 +++ [pid 10977] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10977, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=123 /* 1.23 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 412.350237][T11033] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11085 attached , child_tidptr=0x5555693e0750) = 11085 [pid 11085] set_robust_list(0x5555693e0760, 24) = 0 [pid 11085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11085] setpgid(0, 0) = 0 [pid 11085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 11085] write(3, "1000", 4) = 4 [pid 11085] close(3) = 0 [pid 11085] write(1, "executing program\n", 18) = 18 [pid 11085] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11085] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11085] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11085] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11085] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11085] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11058] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 11087 attached [pid 11058] munmap(0x7ff7d3800000, 138412032 [pid 11087] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11085] <... clone3 resumed> => {parent_tid=[11087]}, 88) = 11087 [pid 11085] rt_sigprocmask(SIG_SETMASK, [], [pid 11087] <... rseq resumed>) = 0 [pid 11085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11087] set_robust_list(0x7ff7dbc929a0, 24 [pid 11085] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11087] <... set_robust_list resumed>) = 0 [pid 11085] <... futex resumed>) = 0 [ 412.432794][T11032] BTRFS info (device loop4): rebuilding free space tree [pid 11087] rt_sigprocmask(SIG_SETMASK, [], [pid 11085] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11087] memfd_create("syzkaller", 0 [pid 11058] <... munmap resumed>) = 0 [pid 11087] <... memfd_create resumed>) = 3 [pid 11058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11058] <... openat resumed>) = 4 [pid 11087] <... mmap resumed>) = 0x7ff7d3800000 [ 412.512513][T11032] BTRFS info (device loop4): disabling free space tree [ 412.512958][T11033] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 412.527912][T11032] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 11058] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11058] close(3) = 0 [pid 11058] close(4) = 0 [ 412.557813][T11058] loop3: detected capacity change from 0 to 32768 [pid 11058] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 11058] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11033] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11033] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 11033] ioctl(4, LOOP_CLR_FD) = 0 [pid 11033] close(4) = 0 [pid 11033] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 412.585068][T11032] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 10989] <... futex resumed>) = 0 [pid 11033] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10989] exit_group(0 [pid 10991] <... futex resumed>) = ? [pid 10989] <... exit_group resumed>) = ? [pid 11033] <... futex resumed>) = ? [pid 10991] +++ exited with 0 +++ [pid 11033] +++ exited with 0 +++ [pid 10989] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10989, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=81 /* 0.81 s */} --- [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 11049] <... close resumed>) = 0 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 11095 ./strace-static-x86_64: Process 11095 attached [pid 11049] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11095] set_robust_list(0x5555693e0760, 24 [pid 11049] <... futex resumed>) = 1 [pid 11046] <... futex resumed>) = 0 [pid 11095] <... set_robust_list resumed>) = 0 [pid 11049] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11046] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11046] <... futex resumed>) = 0 [pid 11049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11046] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11049] creat("./bus", 000 [pid 11095] <... prctl resumed>) = 0 [pid 11049] <... creat resumed>) = 3 [pid 11049] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11046] <... futex resumed>) = 0 [ 412.661491][T11032] BTRFS info (device loop4): last unmount of filesystem 26127f4a-7542-4846-917c-ed6f36d9327b [pid 11095] setpgid(0, 0 [pid 11049] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11046] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11095] <... setpgid resumed>) = 0 [pid 11046] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11095] write(3, "1000", 4) = 4 [pid 11095] close(3) = 0 [pid 11095] write(1, "executing program\n", 18executing program ) = 18 [pid 11095] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11095] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 11046] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11095] <... rt_sigaction resumed>NULL, 8) = 0 [pid 11046] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11032] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 11046] <... futex resumed>) = 0 [pid 11095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [ 412.749803][T11058] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11032] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 11046] <... mmap resumed>) = 0x7ff7dbc51000 [pid 11095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 11032] <... openat resumed>) = 4 [pid 11095] <... mmap resumed>) = 0x7ff7dbc72000 [pid 11046] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 11032] ioctl(4, LOOP_CLR_FD [pid 11095] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 11046] <... mprotect resumed>) = 0 [pid 11032] <... ioctl resumed>) = 0 [pid 11095] <... mprotect resumed>) = 0 [pid 11046] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11032] close(4 [pid 11095] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11046] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11032] <... close resumed>) = 0 [pid 11095] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 11032] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11032] <... futex resumed>) = 1 [pid 10986] <... futex resumed>) = 0 [pid 11046] <... clone3 resumed> => {parent_tid=[11096]}, 88) = 11096 [pid 11032] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10986] exit_group(0 [pid 11095] <... clone3 resumed> => {parent_tid=[11097]}, 88) = 11097 [pid 11046] rt_sigprocmask(SIG_SETMASK, [], [pid 11095] rt_sigprocmask(SIG_SETMASK, [], [pid 11046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11032] <... futex resumed>) = ? [pid 10986] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 11097 attached ./strace-static-x86_64: Process 11096 attached [pid 11095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11046] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11032] +++ exited with 0 +++ [pid 10987] <... futex resumed>) = ? [pid 11097] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11096] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11095] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11097] <... rseq resumed>) = 0 [pid 11096] <... rseq resumed>) = 0 [pid 11095] <... futex resumed>) = 0 [pid 11046] <... futex resumed>) = 0 [pid 11097] set_robust_list(0x7ff7dbc929a0, 24 [ 412.799642][T11058] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11096] set_robust_list(0x7ff7dbc719a0, 24 [pid 11095] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11046] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11097] <... set_robust_list resumed>) = 0 [pid 11096] <... set_robust_list resumed>) = 0 [pid 11097] rt_sigprocmask(SIG_SETMASK, [], [pid 11096] rt_sigprocmask(SIG_SETMASK, [], [pid 11087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 10987] +++ exited with 0 +++ [pid 10986] +++ exited with 0 +++ [pid 11097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11096] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10986, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=78 /* 0.78 s */} --- [pid 11097] memfd_create("syzkaller", 0 [pid 11096] memfd_create("syzkaller", 0 [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 11096] <... memfd_create resumed>) = 4 [pid 11096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11097] <... memfd_create resumed>) = 3 [pid 11096] <... mmap resumed>) = 0x7ff7d3800000 [pid 11097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 5850] <... restart_syscall resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = 0 [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11098 attached [pid 11098] set_robust_list(0x5555693e0760, 24) = 0 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 11098 [pid 11098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11098] setpgid(0, 0) = 0 [pid 11098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11098] write(3, "1000", 4executing program ) = 4 [pid 11098] close(3) = 0 [pid 11098] write(1, "executing program\n", 18) = 18 [pid 11098] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11098] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11098] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11058] <... mount resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 11099 attached [pid 11098] <... clone3 resumed> => {parent_tid=[11099]}, 88) = 11099 [pid 11099] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11098] rt_sigprocmask(SIG_SETMASK, [], [pid 11058] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11099] <... rseq resumed>) = 0 [pid 11098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11099] set_robust_list(0x7ff7dbc929a0, 24 [pid 11098] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11099] <... set_robust_list resumed>) = 0 [pid 11098] <... futex resumed>) = 0 [pid 11099] rt_sigprocmask(SIG_SETMASK, [], [pid 11098] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11099] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11099] memfd_create("syzkaller", 0) = 3 [pid 11099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11058] <... openat resumed>) = 3 [pid 11058] ioctl(3, LOOP_CLR_FD) = 0 [ 413.002040][T11058] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11058] close(3 [pid 11087] <... write resumed>) = 16777216 [pid 11058] <... close resumed>) = 0 [pid 11087] munmap(0x7ff7d3800000, 138412032 [pid 11058] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11052] <... futex resumed>) = 0 [pid 11052] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11052] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11058] creat("./bus", 000 [pid 11087] <... munmap resumed>) = 0 [pid 11087] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 11087] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11087] close(3) = 0 [pid 11052] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11052] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11052] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11087] close(4 [pid 11052] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11087] <... close resumed>) = 0 [pid 11052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11100]}, 88) = 11100 [pid 11087] mkdir("./file1", 0777 [pid 11052] rt_sigprocmask(SIG_SETMASK, [], [pid 11087] <... mkdir resumed>) = -1 EEXIST (File exists) [ 413.474562][T11087] loop1: detected capacity change from 0 to 32768 [pid 11096] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11087] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11052] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 11100 attached [pid 11052] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11052] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11100] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11100] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11100] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11100] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11052] <... futex resumed>) = 0 [pid 11052] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11052] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11100] memfd_create("syzkaller", 0) = 4 [pid 11100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 413.637300][T11087] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 413.667969][T11087] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11087] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11087] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 11087] ioctl(3, LOOP_CLR_FD) = 0 [ 413.864569][T11087] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11087] close(3 [pid 11099] <... write resumed>) = 16777216 [pid 11099] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11099] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 11099] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11049] <... write resumed>) = 16776704 [pid 11099] close(3) = 0 [pid 11099] close(4) = 0 [pid 11099] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 11099] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 414.046167][T11099] loop4: detected capacity change from 0 to 32768 [pid 11049] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11049] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11097] <... write resumed>) = 16777216 [pid 11097] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11097] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 11097] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11097] close(3) = 0 [ 414.138520][T11097] loop0: detected capacity change from 0 to 32768 [pid 11100] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11097] close(4) = 0 [pid 11097] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 11097] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11096] <... write resumed>) = 16777216 [pid 11096] munmap(0x7ff7d3800000, 138412032 [pid 11087] <... close resumed>) = 0 [pid 11087] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11085] <... futex resumed>) = 0 [pid 11087] creat("./bus", 000 [pid 11085] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11085] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11096] <... munmap resumed>) = 0 [pid 11096] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 11096] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [ 414.222833][T11099] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11096] ioctl(5, LOOP_CLR_FD) = 0 [pid 11085] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11085] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11085] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11085] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11085] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 11096] ioctl(5, LOOP_SET_FD, 4 [pid 11085] <... clone3 resumed> => {parent_tid=[11122]}, 88) = 11122 [pid 11096] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 11122 attached [pid 11096] close(5) = 0 [pid 11085] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11085] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 414.274495][T11099] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11085] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11122] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11096] close(4 [pid 11122] <... rseq resumed>) = 0 [pid 11122] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11122] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11122] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11122] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11085] <... futex resumed>) = 0 [pid 11085] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11122] <... futex resumed>) = 0 [pid 11085] <... futex resumed>) = 1 [pid 11122] memfd_create("syzkaller", 0 [pid 11085] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11122] <... memfd_create resumed>) = 4 [pid 11122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 414.343362][T11097] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 414.352854][T11097] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11058] <... creat resumed>) = 3 [pid 11058] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11087] <... creat resumed>) = 3 [pid 11087] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11087] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11058] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11097] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11097] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 11097] ioctl(3, LOOP_CLR_FD) = 0 [ 414.500304][T11097] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11097] close(3 [pid 11096] <... close resumed>) = 0 [pid 11096] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11046] <... futex resumed>) = 0 [pid 11096] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11046] exit_group(0 [pid 11096] <... futex resumed>) = ? [pid 11049] <... futex resumed>) = ? [pid 11046] <... exit_group resumed>) = ? [pid 11099] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11096] +++ exited with 0 +++ [pid 11049] +++ exited with 0 +++ [pid 11099] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 11099] ioctl(3, LOOP_CLR_FD) = 0 [ 414.584857][T11099] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11099] close(3 [pid 11046] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11046, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=105 /* 1.05 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11123 attached , child_tidptr=0x5555693e0750) = 11123 [pid 11123] set_robust_list(0x5555693e0760, 24) = 0 [pid 11123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11123] setpgid(0, 0) = 0 [pid 11100] <... write resumed>) = 16777216 [pid 11123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11100] munmap(0x7ff7d3800000, 138412032 [pid 11123] <... openat resumed>) = 3 executing program [pid 11123] write(3, "1000", 4) = 4 [pid 11123] close(3) = 0 [pid 11123] write(1, "executing program\n", 18) = 18 [pid 11100] <... munmap resumed>) = 0 [pid 11123] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11100] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11123] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11100] <... openat resumed>) = 5 [pid 11123] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 11100] ioctl(5, LOOP_SET_FD, 4 [pid 11123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11123] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11123] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11100] <... ioctl resumed>) = 0 [pid 11123] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11100] close(4 [pid 11123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11100] <... close resumed>) = 0 [pid 11100] close(5 [pid 11123] <... clone3 resumed> => {parent_tid=[11124]}, 88) = 11124 [pid 11100] <... close resumed>) = 0 [pid 11123] rt_sigprocmask(SIG_SETMASK, [], [pid 11100] mkdir("./bus", 0777 [pid 11123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11100] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11123] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 11124 attached ) = 0 [pid 11100] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11123] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11124] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 11124] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11124] memfd_create("syzkaller", 0) = 3 [pid 11124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 414.759381][T11100] loop3: detected capacity change from 0 to 32768 [ 414.788294][T11100] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (11100) [pid 11097] <... close resumed>) = 0 [pid 11097] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11095] <... futex resumed>) = 0 [pid 11097] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11095] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11097] <... futex resumed>) = 0 [pid 11097] creat("./bus", 000 [pid 11095] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11097] <... creat resumed>) = 3 [pid 11097] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11097] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11095] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11097] <... futex resumed>) = 0 [pid 11097] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11095] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11122] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11099] <... close resumed>) = 0 [pid 11099] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11098] <... futex resumed>) = 0 [pid 11099] creat("./bus", 000 [pid 11098] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 414.860086][T11100] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 414.889959][T11100] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 11098] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11095] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11095] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11095] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11130]}, 88) = 11130 [pid 11095] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11095] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11095] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 11130 attached [pid 11130] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11130] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11130] memfd_create("syzkaller", 0) = 4 [pid 11130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11098] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11098] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11098] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11140]}, 88) = 11140 [pid 11098] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11098] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11098] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11140 attached [pid 11140] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11140] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11140] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11140] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11140] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11098] <... futex resumed>) = 0 [pid 11140] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11098] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11140] memfd_create("syzkaller", 0 [pid 11098] <... futex resumed>) = 0 [pid 11140] <... memfd_create resumed>) = 4 [pid 11140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11098] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11140] <... mmap resumed>) = 0x7ff7d3800000 [ 415.088019][T11100] BTRFS info (device loop3): rebuilding free space tree [ 415.152439][T11100] BTRFS info (device loop3): disabling free space tree [ 415.169490][T11100] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 415.187694][T11100] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11124] <... write resumed>) = 16777216 [pid 11124] munmap(0x7ff7d3800000, 138412032 [pid 11122] <... write resumed>) = 16777216 [pid 11122] munmap(0x7ff7d3800000, 138412032 [pid 11130] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11124] <... munmap resumed>) = 0 [pid 11122] <... munmap resumed>) = 0 [pid 11122] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 11122] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11122] close(4 [pid 11140] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11124] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 11124] ioctl(4, LOOP_SET_FD, 3 [pid 11122] <... close resumed>) = 0 [pid 11122] close(5) = 0 [pid 11124] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 11122] mkdir("./bus", 0777 [pid 11124] ioctl(4, LOOP_CLR_FD [pid 11122] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11122] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11124] <... ioctl resumed>) = 0 [pid 11124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11124] close(4) = 0 [ 415.518517][T11122] loop1: detected capacity change from 0 to 32768 [ 415.548787][T11122] BTRFS: device /dev/loop1 (7:1) using temp-fsid 6eb039d1-f17b-4da0-b8ef-4cc296b15588 [ 415.580245][T11122] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (11122) [ 415.653045][T11122] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 415.678191][T11122] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 11124] close(3 [pid 11097] <... write resumed>) = 16776704 [pid 11097] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11097] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11124] <... close resumed>) = 0 [pid 11124] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11123] <... futex resumed>) = 0 [pid 11123] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11123] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 415.730548][T11100] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11124] creat("./bus", 000 [pid 11123] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11123] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 11123] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11123] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11123] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11155]}, 88) = 11155 [pid 11123] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11123] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11123] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11155 attached [pid 11155] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11155] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11155] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11155] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11155] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11123] <... futex resumed>) = 0 [pid 11155] memfd_create("syzkaller", 0 [pid 11123] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11155] <... memfd_create resumed>) = 4 [pid 11123] <... futex resumed>) = 0 [pid 11155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11123] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11155] <... mmap resumed>) = 0x7ff7d3800000 [pid 11140] <... write resumed>) = 16777216 [pid 11100] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11100] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11140] munmap(0x7ff7d3800000, 138412032 [pid 11100] <... openat resumed>) = 4 [pid 11100] ioctl(4, LOOP_CLR_FD) = 0 [pid 11100] close(4 [pid 11140] <... munmap resumed>) = 0 [ 415.939888][T11122] BTRFS info (device loop1): rebuilding free space tree [ 415.961701][T11122] BTRFS info (device loop1): disabling free space tree [ 415.969449][T11122] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 415.969510][T11140] loop4: detected capacity change from 0 to 32768 [pid 11140] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [ 415.979172][T11122] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11140] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11140] close(4) = 0 [pid 11140] close(5) = 0 [pid 11140] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 11130] <... write resumed>) = 16777216 [pid 11130] munmap(0x7ff7d3800000, 138412032 [pid 11140] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11130] <... munmap resumed>) = 0 [ 416.081948][T11140] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (11140) [pid 11130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 11130] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11130] close(4) = 0 [ 416.126052][T11130] loop0: detected capacity change from 0 to 32768 [ 416.167748][T11140] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 416.200552][T11130] BTRFS: device /dev/loop0 (7:0) using temp-fsid e44a0773-0a6c-433e-8aa7-2aa23dc0ae96 [pid 11130] close(5) = 0 [pid 11130] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 11130] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11124] <... creat resumed>) = 3 [pid 11099] <... creat resumed>) = 3 [pid 11099] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11099] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11124] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 416.218215][T11140] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 416.241517][T11130] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (11130) [ 416.258385][T11122] BTRFS info (device loop1): last unmount of filesystem 6eb039d1-f17b-4da0-b8ef-4cc296b15588 [pid 11124] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11100] <... close resumed>) = 0 [pid 11100] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11052] <... futex resumed>) = 0 [pid 11052] exit_group(0 [pid 11058] <... futex resumed>) = ? [pid 11052] <... exit_group resumed>) = ? [pid 11100] +++ exited with 0 +++ [pid 11058] +++ exited with 0 +++ [pid 11052] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11052, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=99 /* 0.99 s */} --- [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11172 attached , child_tidptr=0x5555693e0750) = 11172 [ 416.327426][T11130] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11172] set_robust_list(0x5555693e0760, 24 [pid 11122] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11172] <... set_robust_list resumed>) = 0 [pid 11172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11172] setpgid(0, 0 [pid 11122] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 11172] <... setpgid resumed>) = 0 [pid 11122] <... openat resumed>) = 4 [pid 11172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11122] ioctl(4, LOOP_CLR_FD [pid 11155] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216executing program [pid 11172] <... openat resumed>) = 3 [pid 11122] <... ioctl resumed>) = 0 [pid 11172] write(3, "1000", 4 [pid 11122] close(4 [pid 11172] <... write resumed>) = 4 [pid 11172] close(3) = 0 [pid 11172] write(1, "executing program\n", 18) = 18 [pid 11172] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11172] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11172] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [ 416.387817][T11130] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 11172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[11180]}, 88) = 11180 ./strace-static-x86_64: Process 11180 attached [pid 11172] rt_sigprocmask(SIG_SETMASK, [], [pid 11180] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 11180] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11180] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11172] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11172] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11172] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11180] <... futex resumed>) = 0 [pid 11180] memfd_create("syzkaller", 0) = 3 [pid 11180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 416.491845][T11140] BTRFS info (device loop4): rebuilding free space tree [ 416.598255][T11140] BTRFS info (device loop4): disabling free space tree [ 416.618177][T11140] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 416.697891][T11140] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 416.727552][T11130] BTRFS info (device loop0): rebuilding free space tree [pid 11122] <... close resumed>) = 0 [ 416.760053][T11130] BTRFS info (device loop0): disabling free space tree [ 416.767063][T11130] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 416.795001][T11130] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11122] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11122] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11085] <... futex resumed>) = 0 [pid 11085] exit_group(0 [pid 11122] <... futex resumed>) = ? [pid 11087] <... futex resumed>) = ? [pid 11085] <... exit_group resumed>) = ? [pid 11122] +++ exited with 0 +++ [pid 11087] +++ exited with 0 +++ [pid 11085] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11085, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=83 /* 0.83 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 416.815468][T11140] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 416.815740][T11130] BTRFS info (device loop0): last unmount of filesystem e44a0773-0a6c-433e-8aa7-2aa23dc0ae96 [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11194 attached [pid 11194] set_robust_list(0x5555693e0760, 24 [pid 5844] <... clone resumed>, child_tidptr=0x5555693e0750) = 11194 [pid 11194] <... set_robust_list resumed>) = 0 [pid 11194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11194] setpgid(0, 0) = 0 [pid 11194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11194] write(3, "1000", 4 [pid 11140] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11130] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11194] <... write resumed>) = 4 [pid 11180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11140] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 11194] close(3 [pid 11130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 11130] ioctl(4, LOOP_CLR_FD) = 0 [pid 11130] close(4 [pid 11194] <... close resumed>) = 0 [pid 11140] <... openat resumed>) = 4 [pid 11194] write(1, "executing program\n", 18 [pid 11140] ioctl(4, LOOP_CLR_FDexecuting program [pid 11194] <... write resumed>) = 18 [pid 11140] <... ioctl resumed>) = 0 [pid 11194] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11140] close(4 [pid 11194] <... futex resumed>) = 0 [pid 11194] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11194] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11194] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11195 attached => {parent_tid=[11195]}, 88) = 11195 [pid 11195] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11194] rt_sigprocmask(SIG_SETMASK, [], [pid 11195] <... rseq resumed>) = 0 [pid 11194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11195] set_robust_list(0x7ff7dbc929a0, 24 [pid 11194] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11155] <... write resumed>) = 16777216 [pid 11195] <... set_robust_list resumed>) = 0 [pid 11194] <... futex resumed>) = 0 [pid 11194] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11195] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11195] memfd_create("syzkaller", 0) = 3 [pid 11195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11155] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11155] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 11155] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11155] ioctl(5, LOOP_CLR_FD) = 0 [pid 11155] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11155] close(5) = 0 [pid 11155] close(4 [pid 11130] <... close resumed>) = 0 [pid 11130] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11130] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11095] <... futex resumed>) = 0 [pid 11095] exit_group(0 [pid 11130] <... futex resumed>) = ? [pid 11095] <... exit_group resumed>) = ? [pid 11130] +++ exited with 0 +++ [pid 11097] <... futex resumed>) = ? [pid 11140] <... close resumed>) = 0 [pid 11140] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11097] +++ exited with 0 +++ [pid 11095] +++ exited with 0 +++ [pid 11140] <... futex resumed>) = 1 [pid 11098] <... futex resumed>) = 0 [pid 11140] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11098] exit_group(0 [pid 11140] <... futex resumed>) = ? [pid 11099] <... futex resumed>) = ? [pid 11098] <... exit_group resumed>) = ? [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11095, si_uid=0, si_status=0, si_utime=20 /* 0.20 s */, si_stime=120 /* 1.20 s */} --- [pid 11140] +++ exited with 0 +++ [pid 5843] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 11099] +++ exited with 0 +++ [pid 11098] +++ exited with 0 +++ [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11098, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=114 /* 1.14 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 5843] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] <... restart_syscall resumed>) = 0 [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 11196 [pid 5850] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 ./strace-static-x86_64: Process 11196 attached [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 11197 [pid 11196] set_robust_list(0x5555693e0760, 24./strace-static-x86_64: Process 11197 attached ) = 0 [pid 11196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11197] set_robust_list(0x5555693e0760, 24 [pid 11196] <... prctl resumed>) = 0 [pid 11196] setpgid(0, 0 [pid 11197] <... set_robust_list resumed>) = 0 [pid 11197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11196] <... setpgid resumed>) = 0 [pid 11197] <... prctl resumed>) = 0 [pid 11196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11197] setpgid(0, 0 [pid 11196] <... openat resumed>) = 3 [pid 11197] <... setpgid resumed>) = 0 [pid 11196] write(3, "1000", 4) = 4 [pid 11197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11196] close(3) = 0 [pid 11197] <... openat resumed>) = 3 executing program [pid 11196] write(1, "executing program\n", 18) = 18 [pid 11197] write(3, "1000", 4) = 4 [pid 11196] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11197] close(3 [pid 11196] <... futex resumed>) = 0 [pid 11197] <... close resumed>) = 0 [pid 11196] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, executing program [pid 11197] write(1, "executing program\n", 18 [pid 11196] <... rt_sigaction resumed>NULL, 8) = 0 [pid 11197] <... write resumed>) = 18 [pid 11196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 11197] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11197] <... futex resumed>) = 0 [pid 11196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 11197] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11196] <... mmap resumed>) = 0x7ff7dbc72000 [pid 11197] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 11196] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 11197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 11196] <... mprotect resumed>) = 0 [pid 11155] <... close resumed>) = 0 [pid 11197] <... mmap resumed>) = 0x7ff7dbc72000 [pid 11196] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11197] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 11196] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11155] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11197] <... mprotect resumed>) = 0 [pid 11196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11155] <... futex resumed>) = 1 [pid 11123] <... futex resumed>) = 0 ./strace-static-x86_64: Process 11198 attached [pid 11197] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11196] <... clone3 resumed> => {parent_tid=[11198]}, 88) = 11198 [pid 11155] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11123] exit_group(0 [pid 11197] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11196] rt_sigprocmask(SIG_SETMASK, [], [pid 11155] <... futex resumed>) = ? [pid 11124] <... futex resumed>) = ? [pid 11123] <... exit_group resumed>) = ? [pid 11197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11155] +++ exited with 0 +++ [pid 11124] +++ exited with 0 +++ ./strace-static-x86_64: Process 11199 attached [pid 11196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11123] +++ exited with 0 +++ [pid 11199] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11198] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11197] <... clone3 resumed> => {parent_tid=[11199]}, 88) = 11199 [pid 11196] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11197] rt_sigprocmask(SIG_SETMASK, [], [pid 11198] <... rseq resumed>) = 0 [pid 11197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11196] <... futex resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11123, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=59 /* 0.59 s */} --- [pid 11198] set_robust_list(0x7ff7dbc929a0, 24 [pid 11197] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11196] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11198] <... set_robust_list resumed>) = 0 [pid 11197] <... futex resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 11199] <... rseq resumed>) = 0 [pid 11198] rt_sigprocmask(SIG_SETMASK, [], [pid 11197] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5845] <... restart_syscall resumed>) = 0 [pid 11199] set_robust_list(0x7ff7dbc929a0, 24 [pid 11198] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11199] <... set_robust_list resumed>) = 0 [pid 11198] memfd_create("syzkaller", 0 [pid 11199] rt_sigprocmask(SIG_SETMASK, [], [pid 11198] <... memfd_create resumed>) = 3 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 11199] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] <... openat resumed>) = 3 [pid 11198] <... mmap resumed>) = 0x7ff7d3800000 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 11199] memfd_create("syzkaller", 0 [pid 11180] <... write resumed>) = 16777216 [pid 5845] <... ioctl resumed>) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11200 attached , child_tidptr=0x5555693e0750) = 11200 [pid 11200] set_robust_list(0x5555693e0760, 24) = 0 [pid 11200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11199] <... memfd_create resumed>) = 3 [pid 11200] setpgid(0, 0) = 0 [pid 11200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11180] munmap(0x7ff7d3800000, 138412032 [pid 11200] write(3, "1000", 4) = 4 [pid 11200] close(3) = 0 [pid 11200] write(1, "executing program\n", 18 [pid 11199] <... mmap resumed>) = 0x7ff7d3800000 executing program [pid 11200] <... write resumed>) = 18 [pid 11200] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11200] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11200] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11200] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11201 attached => {parent_tid=[11201]}, 88) = 11201 [pid 11180] <... munmap resumed>) = 0 [pid 11201] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11200] rt_sigprocmask(SIG_SETMASK, [], [pid 11201] <... rseq resumed>) = 0 [pid 11200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11201] set_robust_list(0x7ff7dbc929a0, 24 [pid 11200] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11201] <... set_robust_list resumed>) = 0 [pid 11200] <... futex resumed>) = 0 [pid 11201] rt_sigprocmask(SIG_SETMASK, [], [pid 11200] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11201] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11201] memfd_create("syzkaller", 0) = 3 [pid 11201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11180] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 11180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11180] close(3) = 0 [pid 11180] close(4) = 0 [pid 11180] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 11195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 417.454106][T11180] loop3: detected capacity change from 0 to 32768 [ 417.619217][T11180] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 417.665754][T11180] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11180] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11195] <... write resumed>) = 16777216 [pid 11199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11195] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11195] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 11201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11180] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11195] <... openat resumed>) = 4 [pid 11195] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11180] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 11180] ioctl(3, LOOP_CLR_FD) = 0 [pid 11180] close(3 [pid 11195] close(3) = 0 [pid 11195] close(4) = 0 [pid 11195] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 417.868090][T11180] bcachefs: bch2_fs_get_tree() error: EINVAL [ 417.889202][T11195] loop1: detected capacity change from 0 to 32768 [ 418.015687][T11195] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 418.085121][T11195] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11195] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11201] <... write resumed>) = 16777216 [pid 11201] munmap(0x7ff7d3800000, 138412032 [pid 11180] <... close resumed>) = 0 [pid 11201] <... munmap resumed>) = 0 [pid 11201] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 11180] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11201] <... openat resumed>) = 4 [pid 11180] <... futex resumed>) = 1 [pid 11172] <... futex resumed>) = 0 [pid 11201] ioctl(4, LOOP_SET_FD, 3 [pid 11180] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11172] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11201] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 11180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11172] <... futex resumed>) = 0 [pid 11201] ioctl(4, LOOP_CLR_FD [pid 11180] creat("./bus", 000 [pid 11172] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11201] <... ioctl resumed>) = 0 [pid 11180] <... creat resumed>) = 3 [pid 11180] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11172] <... futex resumed>) = 0 [pid 11180] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11172] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11201] ioctl(4, LOOP_SET_FD, 3 [pid 11180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11172] <... futex resumed>) = 0 [pid 11180] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11201] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 11172] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11201] close(4 [pid 11198] <... write resumed>) = 16777216 [pid 11201] <... close resumed>) = 0 [pid 11198] munmap(0x7ff7d3800000, 138412032 [pid 11201] close(3 [pid 11195] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11195] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 11195] ioctl(3, LOOP_CLR_FD) = 0 [ 418.242199][T11195] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11195] close(3 [pid 11172] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11172] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11172] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 11198] <... munmap resumed>) = 0 [pid 11172] <... mprotect resumed>) = 0 [pid 11172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11216 attached [pid 11198] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 11172] <... clone3 resumed> => {parent_tid=[11216]}, 88) = 11216 [pid 11216] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11198] <... openat resumed>) = 4 [pid 11172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11216] <... rseq resumed>) = 0 [pid 11198] ioctl(4, LOOP_SET_FD, 3 [pid 11172] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11172] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11216] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11216] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11216] memfd_create("syzkaller", 0) = 4 [pid 11216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11198] <... ioctl resumed>) = 0 [pid 11216] <... mmap resumed>) = 0x7ff7d3800000 [pid 11198] close(3 [pid 11199] <... write resumed>) = 16777216 [pid 11198] <... close resumed>) = 0 [pid 11198] close(4) = 0 [ 418.327929][T11198] loop0: detected capacity change from 0 to 32768 [pid 11199] munmap(0x7ff7d3800000, 138412032 [pid 11198] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 11198] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11199] <... munmap resumed>) = 0 [pid 11199] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 11199] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11199] close(3) = 0 [pid 11199] close(4) = 0 [pid 11199] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 418.413370][T11199] loop4: detected capacity change from 0 to 32768 [ 418.513405][T11198] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 418.544214][T11198] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 418.552495][T11199] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11199] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11195] <... close resumed>) = 0 [pid 11195] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11194] <... futex resumed>) = 0 [pid 11195] <... futex resumed>) = 1 [pid 11194] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11195] creat("./bus", 000 [pid 11194] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11201] <... close resumed>) = 0 [pid 11201] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11200] <... futex resumed>) = 0 [pid 11201] creat("./bus", 000 [pid 11200] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 418.561906][T11199] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11200] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11194] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11194] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11194] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11231 attached [pid 11231] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11194] <... clone3 resumed> => {parent_tid=[11231]}, 88) = 11231 [pid 11231] <... rseq resumed>) = 0 [pid 11194] rt_sigprocmask(SIG_SETMASK, [], [pid 11231] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11231] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11194] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11194] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11231] <... futex resumed>) = 0 [pid 11231] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11231] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11231] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11194] <... futex resumed>) = 0 [pid 11194] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11231] <... futex resumed>) = 0 [pid 11194] <... futex resumed>) = 1 [pid 11231] memfd_create("syzkaller", 0 [pid 11194] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11231] <... memfd_create resumed>) = 4 [pid 11231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11200] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11200] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11200] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11200] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11232 attached [pid 11232] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11200] <... clone3 resumed> => {parent_tid=[11232]}, 88) = 11232 [pid 11200] rt_sigprocmask(SIG_SETMASK, [], [pid 11232] <... rseq resumed>) = 0 [pid 11200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11232] set_robust_list(0x7ff7dbc719a0, 24 [pid 11200] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11232] <... set_robust_list resumed>) = 0 [pid 11200] <... futex resumed>) = 0 [pid 11200] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11232] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11232] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11232] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11200] <... futex resumed>) = 0 [pid 11232] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11200] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11232] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11200] <... futex resumed>) = 0 [pid 11200] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11232] memfd_create("syzkaller", 0) = 4 [pid 11198] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11198] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 11232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11198] ioctl(3, LOOP_CLR_FD [pid 11232] <... mmap resumed>) = 0x7ff7d3800000 [pid 11198] <... ioctl resumed>) = 0 [ 418.749166][T11198] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11198] close(3 [pid 11199] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11199] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 11199] ioctl(3, LOOP_CLR_FD) = 0 [ 418.807589][T11199] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11199] close(3 [pid 11216] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11231] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11198] <... close resumed>) = 0 [pid 11198] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11196] <... futex resumed>) = 0 [pid 11198] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11196] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11196] <... futex resumed>) = 0 [pid 11198] creat("./bus", 000 [pid 11196] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11199] <... close resumed>) = 0 [pid 11199] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11197] <... futex resumed>) = 0 [pid 11199] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11197] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11197] <... futex resumed>) = 0 [pid 11199] creat("./bus", 000 [pid 11197] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11196] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11196] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11196] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11233]}, 88) = 11233 [pid 11196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11196] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11196] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11232] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216./strace-static-x86_64: Process 11233 attached [pid 11233] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11233] set_robust_list(0x7ff7dbc719a0, 24 [pid 11197] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11233] <... set_robust_list resumed>) = 0 [pid 11197] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11233] rt_sigprocmask(SIG_SETMASK, [], [pid 11197] <... futex resumed>) = 0 [pid 11197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 11233] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11233] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11197] <... mmap resumed>) = 0x7ff7dbc51000 [pid 11233] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 11197] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 11233] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11197] <... mprotect resumed>) = 0 [pid 11196] <... futex resumed>) = 0 [pid 11233] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11197] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11196] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11197] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11196] <... futex resumed>) = 0 [pid 11197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 11233] memfd_create("syzkaller", 0 [pid 11196] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 11234 attached [pid 11233] <... memfd_create resumed>) = 4 [pid 11234] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11197] <... clone3 resumed> => {parent_tid=[11234]}, 88) = 11234 [pid 11234] <... rseq resumed>) = 0 [pid 11233] <... mmap resumed>) = 0x7ff7d3800000 [pid 11197] rt_sigprocmask(SIG_SETMASK, [], [pid 11234] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11234] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11197] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11234] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11197] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11234] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11197] <... futex resumed>) = 0 [pid 11197] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11234] memfd_create("syzkaller", 0 [pid 11197] <... futex resumed>) = 0 [pid 11234] <... memfd_create resumed>) = 4 [pid 11197] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11180] <... write resumed>) = 16776704 [pid 11180] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11216] <... write resumed>) = 16777216 [pid 11180] <... futex resumed>) = 0 [pid 11216] munmap(0x7ff7d3800000, 138412032 [pid 11180] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11216] <... munmap resumed>) = 0 [pid 11216] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 5 [pid 11216] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11216] close(4) = 0 [pid 11216] close(5) = 0 [ 419.425796][T11216] loop3: detected capacity change from 0 to 32768 [pid 11216] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 419.468164][T11216] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (11216) [ 419.548473][T11216] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 419.578301][T11216] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 11216] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11231] <... write resumed>) = 16777216 [pid 11231] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11231] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [ 419.705666][T11216] BTRFS info (device loop3): rebuilding free space tree [pid 11231] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11232] <... write resumed>) = 16777216 [pid 11231] close(4) = 0 [pid 11231] close(5) = 0 [ 419.759303][T11231] loop1: detected capacity change from 0 to 32768 [ 419.767097][T11216] BTRFS info (device loop3): disabling free space tree [ 419.792422][T11216] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 11231] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 11232] munmap(0x7ff7d3800000, 138412032 [pid 11231] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11201] <... creat resumed>) = 3 [pid 11195] <... creat resumed>) = 3 [pid 11201] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11195] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11201] <... futex resumed>) = 0 [pid 11195] <... futex resumed>) = 0 [pid 11201] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11195] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11198] <... creat resumed>) = 3 [pid 11198] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11199] <... creat resumed>) = 3 [pid 11198] <... futex resumed>) = 0 [pid 11198] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11233] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11232] <... munmap resumed>) = 0 [pid 11199] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11232] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 11232] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11232] ioctl(5, LOOP_CLR_FD) = 0 [pid 11232] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11232] close(5) = 0 [pid 11232] close(4 [pid 11199] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 419.806523][T11216] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 419.836169][T11231] BTRFS: device /dev/loop1 (7:1) using temp-fsid dec1586e-f496-4783-83fb-59f171ffb1f6 [ 419.880683][T11231] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (11231) [ 419.894447][T11216] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11234] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11216] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11216] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 11216] ioctl(4, LOOP_CLR_FD) = 0 [pid 11216] close(4) = 0 [pid 11216] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11216] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11172] <... futex resumed>) = 0 [pid 11172] exit_group(0) = ? [pid 11180] <... futex resumed>) = ? [pid 11180] +++ exited with 0 +++ [pid 11216] <... futex resumed>) = ? [pid 11216] +++ exited with 0 +++ [ 419.961677][T11231] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 419.997955][T11231] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 11172] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11172, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=103 /* 1.03 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = 0 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11255 attached , child_tidptr=0x5555693e0750) = 11255 [pid 11255] set_robust_list(0x5555693e0760, 24) = 0 [pid 11255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11255] setpgid(0, 0) = 0 [pid 11255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11255] write(3, "1000", 4) = 4 [pid 11255] close(3) = 0 executing program [pid 11255] write(1, "executing program\n", 18) = 18 [pid 11255] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11255] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11255] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[11262]}, 88) = 11262 [pid 11255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11255] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11255] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 11262 attached [pid 11262] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 11262] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11262] memfd_create("syzkaller", 0) = 3 [pid 11262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11232] <... close resumed>) = 0 [pid 11232] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11232] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11200] <... futex resumed>) = 0 [pid 11200] exit_group(0 [pid 11234] <... write resumed>) = 16777216 [pid 11232] <... futex resumed>) = ? [pid 11201] <... futex resumed>) = ? [pid 11200] <... exit_group resumed>) = ? [pid 11232] +++ exited with 0 +++ [pid 11201] +++ exited with 0 +++ [pid 11200] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11200, si_uid=0, si_status=0, si_utime=23 /* 0.23 s */, si_stime=59 /* 0.59 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 11234] munmap(0x7ff7d3800000, 138412032 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 11234] <... munmap resumed>) = 0 [pid 11234] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 11269 ./strace-static-x86_64: Process 11269 attached [pid 11269] set_robust_list(0x5555693e0760, 24) = 0 [pid 11269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11234] <... openat resumed>) = 5 [pid 11269] <... prctl resumed>) = 0 [pid 11269] setpgid(0, 0) = 0 [pid 11269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 420.252894][T11231] BTRFS info (device loop1): rebuilding free space tree [ 420.291986][T11234] loop4: detected capacity change from 0 to 32768 [pid 11234] ioctl(5, LOOP_SET_FD, 4 [pid 11269] <... openat resumed>) = 3 [pid 11269] write(3, "1000", 4) = 4 executing program [pid 11269] close(3) = 0 [pid 11269] write(1, "executing program\n", 18) = 18 [pid 11269] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11269] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11234] <... ioctl resumed>) = 0 [pid 11269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11269] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11269] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11234] close(4) = 0 [pid 11269] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[11270]}, 88) = 11270 ./strace-static-x86_64: Process 11270 attached [pid 11269] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11269] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11269] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11270] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11234] close(5 [pid 11270] <... rseq resumed>) = 0 [pid 11270] set_robust_list(0x7ff7dbc929a0, 24 [pid 11234] <... close resumed>) = 0 [pid 11234] mkdir("./bus", 0777 [pid 11270] <... set_robust_list resumed>) = 0 [pid 11270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11270] memfd_create("syzkaller", 0) = 3 [pid 11270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11234] <... mkdir resumed>) = -1 EEXIST (File exists) [ 420.308743][T11231] BTRFS info (device loop1): disabling free space tree [ 420.315709][T11231] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 420.347801][T11231] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 420.395452][T11234] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (11234) [pid 11234] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11233] <... write resumed>) = 16777216 [pid 11233] munmap(0x7ff7d3800000, 138412032) = 0 [ 420.448127][T11231] BTRFS info (device loop1): last unmount of filesystem dec1586e-f496-4783-83fb-59f171ffb1f6 [ 420.469685][T11234] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [ 420.507730][T11234] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 420.513078][T11233] loop0: detected capacity change from 0 to 32768 [pid 11233] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11233] close(4) = 0 [pid 11233] close(5) = 0 [pid 11233] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 420.557234][T11233] BTRFS: device /dev/loop0 (7:0) using temp-fsid 85308363-3d42-4042-831c-e25a006347db [ 420.625639][T11233] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (11233) [pid 11233] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11231] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11231] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 11231] ioctl(4, LOOP_CLR_FD) = 0 [ 420.712736][T11233] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 420.737961][T11233] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 420.784037][T11234] BTRFS info (device loop4): rebuilding free space tree [pid 11231] close(4 [ 420.875896][T11234] BTRFS info (device loop4): disabling free space tree [ 420.915490][T11234] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 11262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 420.950156][T11233] BTRFS info (device loop0): rebuilding free space tree [ 420.983548][T11234] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11231] <... close resumed>) = 0 [pid 11231] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11231] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11194] <... futex resumed>) = 0 [pid 11194] exit_group(0 [pid 11231] <... futex resumed>) = ? [pid 11195] <... futex resumed>) = ? [pid 11194] <... exit_group resumed>) = ? [pid 11231] +++ exited with 0 +++ [ 421.031122][T11233] BTRFS info (device loop0): disabling free space tree [ 421.048630][T11233] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 421.067893][T11234] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11195] +++ exited with 0 +++ [pid 11194] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11194, si_uid=0, si_status=0, si_utime=16 /* 0.16 s */, si_stime=106 /* 1.06 s */} --- [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 11303 ./strace-static-x86_64: Process 11303 attached [pid 11303] set_robust_list(0x5555693e0760, 24) = 0 [pid 11303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11303] setpgid(0, 0) = 0 [pid 11303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 11303] write(3, "1000", 4) = 4 [pid 11303] close(3) = 0 [pid 11303] write(1, "executing program\n", 18) = 18 [pid 11303] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11303] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11303] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11303] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11303] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11303] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11304 attached => {parent_tid=[11304]}, 88) = 11304 [pid 11303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11304] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11303] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11304] <... rseq resumed>) = 0 [pid 11303] <... futex resumed>) = 0 [pid 11304] set_robust_list(0x7ff7dbc929a0, 24 [pid 11303] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11304] <... set_robust_list resumed>) = 0 [pid 11304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11304] memfd_create("syzkaller", 0) = 3 [ 421.096392][T11233] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11234] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11234] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 11234] ioctl(4, LOOP_CLR_FD) = 0 [pid 11234] close(4 [pid 11262] <... write resumed>) = 16777216 [ 421.192594][T11233] BTRFS info (device loop0): last unmount of filesystem 85308363-3d42-4042-831c-e25a006347db [pid 11262] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11262] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 11262] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11262] close(3) = 0 [pid 11262] close(4) = 0 [pid 11262] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 421.291721][T11262] loop3: detected capacity change from 0 to 32768 [pid 11262] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11233] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 11233] ioctl(4, LOOP_CLR_FD) = 0 [pid 11233] close(4 [pid 11234] <... close resumed>) = 0 [pid 11234] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11197] <... futex resumed>) = 0 [pid 11234] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11197] exit_group(0 [pid 11234] <... futex resumed>) = ? [pid 11199] <... futex resumed>) = ? [pid 11197] <... exit_group resumed>) = ? [pid 11234] +++ exited with 0 +++ [pid 11270] <... write resumed>) = 16777216 [pid 11199] +++ exited with 0 +++ [pid 11197] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11197, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=94 /* 0.94 s */} --- [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 11270] munmap(0x7ff7d3800000, 138412032 [pid 5850] <... restart_syscall resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 11270] <... munmap resumed>) = 0 [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 11312 ./strace-static-x86_64: Process 11312 attached [pid 11270] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 11312] set_robust_list(0x5555693e0760, 24) = 0 [pid 11270] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11270] ioctl(4, LOOP_CLR_FD) = 0 [pid 11270] ioctl(4, LOOP_SET_FD, 3 [pid 11312] <... prctl resumed>) = 0 [pid 11270] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 11312] setpgid(0, 0) = 0 [pid 11270] close(4) = 0 [pid 11270] close(3 [pid 11312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11312] write(3, "1000", 4) = 4 [ 421.486418][T11262] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11312] close(3) = 0 [pid 11312] write(1, "executing program\n", 18executing program ) = 18 [pid 11312] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11312] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 11233] <... close resumed>) = 0 [pid 11312] <... rt_sigaction resumed>NULL, 8) = 0 [pid 11233] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11312] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11233] <... futex resumed>) = 1 [pid 11196] <... futex resumed>) = 0 [pid 11312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 11233] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11196] exit_group(0 [pid 11312] <... mmap resumed>) = 0x7ff7dbc72000 [pid 11233] <... futex resumed>) = ? [pid 11198] <... futex resumed>) = ? [pid 11196] <... exit_group resumed>) = ? [pid 11198] +++ exited with 0 +++ [pid 11312] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 11233] +++ exited with 0 +++ [pid 11196] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11196, si_uid=0, si_status=0, si_utime=22 /* 0.22 s */, si_stime=83 /* 0.83 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 11312] <... mprotect resumed>) = 0 [pid 5843] <... openat resumed>) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 11312] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] close(3 [pid 11312] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5843] <... close resumed>) = 0 [pid 11312] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [ 421.544440][T11262] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11313 attached ./strace-static-x86_64: Process 11314 attached [pid 11313] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11312] <... clone3 resumed> => {parent_tid=[11313]}, 88) = 11313 [pid 11313] <... rseq resumed>) = 0 [pid 11314] set_robust_list(0x5555693e0760, 24 [pid 11312] rt_sigprocmask(SIG_SETMASK, [], [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 11314 [pid 11313] set_robust_list(0x7ff7dbc929a0, 24 [pid 11314] <... set_robust_list resumed>) = 0 [pid 11312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11313] <... set_robust_list resumed>) = 0 [pid 11313] rt_sigprocmask(SIG_SETMASK, [], [pid 11314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11312] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11313] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11314] <... prctl resumed>) = 0 [pid 11312] <... futex resumed>) = 0 [pid 11313] memfd_create("syzkaller", 0 [pid 11314] setpgid(0, 0 [pid 11312] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11313] <... memfd_create resumed>) = 3 [pid 11314] <... setpgid resumed>) = 0 [pid 11313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11313] <... mmap resumed>) = 0x7ff7d3800000 [pid 11314] <... openat resumed>) = 3 [pid 11314] write(3, "1000", 4 [pid 11304] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11314] <... write resumed>) = 4 [pid 11314] close(3) = 0 [pid 11314] write(1, "executing program\n", 18executing program ) = 18 [pid 11314] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11314] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11314] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11315 attached => {parent_tid=[11315]}, 88) = 11315 [pid 11315] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11314] rt_sigprocmask(SIG_SETMASK, [], [pid 11315] <... rseq resumed>) = 0 [pid 11314] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11314] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11315] set_robust_list(0x7ff7dbc929a0, 24 [pid 11314] <... futex resumed>) = 0 [pid 11314] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11315] <... set_robust_list resumed>) = 0 [pid 11315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11315] memfd_create("syzkaller", 0) = 3 [pid 11315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11262] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11262] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 11262] ioctl(3, LOOP_CLR_FD) = 0 [pid 11262] close(3 [pid 11270] <... close resumed>) = 0 [pid 11270] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11269] <... futex resumed>) = 0 [pid 11269] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11269] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11270] creat("./bus", 000) = 3 [pid 11270] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11269] <... futex resumed>) = 0 [ 421.789177][T11262] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11270] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11269] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11269] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 11269] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11269] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11269] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11316 attached => {parent_tid=[11316]}, 88) = 11316 [pid 11316] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11269] rt_sigprocmask(SIG_SETMASK, [], [pid 11316] set_robust_list(0x7ff7dbc719a0, 24 [pid 11269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11316] <... set_robust_list resumed>) = 0 [pid 11316] rt_sigprocmask(SIG_SETMASK, [], [pid 11269] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11316] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11269] <... futex resumed>) = 0 [pid 11316] memfd_create("syzkaller", 0 [pid 11269] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11316] <... memfd_create resumed>) = 4 [pid 11316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11262] <... close resumed>) = 0 [pid 11313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11262] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11255] <... futex resumed>) = 0 [pid 11255] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11304] <... write resumed>) = 16777216 [pid 11262] creat("./bus", 000 [pid 11255] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11304] munmap(0x7ff7d3800000, 138412032 [pid 11315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11304] <... munmap resumed>) = 0 [pid 11304] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 11255] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11255] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11255] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11317 attached => {parent_tid=[11317]}, 88) = 11317 [pid 11255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11255] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11255] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11317] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11304] <... openat resumed>) = 4 [pid 11317] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11317] rt_sigprocmask(SIG_SETMASK, [], [pid 11304] ioctl(4, LOOP_SET_FD, 3 [pid 11317] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11317] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11317] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11255] <... futex resumed>) = 0 [pid 11255] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11255] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11317] memfd_create("syzkaller", 0) = 4 [pid 11317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11304] <... ioctl resumed>) = 0 [pid 11304] close(3) = 0 [ 422.220746][T11304] loop1: detected capacity change from 0 to 32768 [pid 11304] close(4) = 0 [pid 11304] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 11304] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 422.376563][T11304] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 422.435508][T11304] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11316] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11313] <... write resumed>) = 16777216 [pid 11313] munmap(0x7ff7d3800000, 138412032 [pid 11315] <... write resumed>) = 16777216 [pid 11315] munmap(0x7ff7d3800000, 138412032 [pid 11313] <... munmap resumed>) = 0 [pid 11313] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 11313] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11313] close(3) = 0 [pid 11313] close(4 [pid 11315] <... munmap resumed>) = 0 [pid 11313] <... close resumed>) = 0 [pid 11315] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 11313] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 422.630894][T11313] loop4: detected capacity change from 0 to 32768 [pid 11313] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11315] <... openat resumed>) = 4 [pid 11315] ioctl(4, LOOP_SET_FD, 3 [pid 11304] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11315] <... ioctl resumed>) = 0 [pid 11304] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 11315] close(3 [pid 11304] <... openat resumed>) = 3 [pid 11304] ioctl(3, LOOP_CLR_FD [pid 11315] <... close resumed>) = 0 [pid 11315] close(4 [pid 11304] <... ioctl resumed>) = 0 [pid 11315] <... close resumed>) = 0 [pid 11304] close(3 [ 422.689647][T11304] bcachefs: bch2_fs_get_tree() error: EINVAL [ 422.707287][T11315] loop0: detected capacity change from 0 to 32768 [pid 11315] mkdir("./file1", 0777 [pid 11316] <... write resumed>) = 16777216 [pid 11317] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11315] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11315] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11316] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11316] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 11316] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11316] ioctl(5, LOOP_CLR_FD) = 0 [pid 11316] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11316] close(5) = 0 [ 422.889382][T11313] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11316] close(4 [pid 11270] <... write resumed>) = 16776704 [pid 11317] <... write resumed>) = 16777216 [pid 11270] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11270] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11317] munmap(0x7ff7d3800000, 138412032 [pid 11316] <... close resumed>) = 0 [ 422.968507][T11313] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 423.002444][T11315] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11316] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11269] <... futex resumed>) = 0 [pid 11269] exit_group(0) = ? [pid 11270] <... futex resumed>) = ? [pid 11270] +++ exited with 0 +++ [pid 11304] <... close resumed>) = 0 [pid 11304] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11304] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11303] <... futex resumed>) = 0 [pid 11317] <... munmap resumed>) = 0 [pid 11303] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11304] <... futex resumed>) = 0 [pid 11303] <... futex resumed>) = 1 [pid 11304] creat("./bus", 000 [pid 11317] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 423.048313][T11315] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11303] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11317] <... openat resumed>) = 5 [pid 11317] ioctl(5, LOOP_SET_FD, 4 [pid 11316] +++ exited with 0 +++ [pid 11269] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11269, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=96 /* 0.96 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 11317] <... ioctl resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 11317] close(4 [pid 11303] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11317] <... close resumed>) = 0 [pid 11303] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11317] close(5 [pid 11303] <... futex resumed>) = 0 ./strace-static-x86_64: Process 11339 attached [pid 11317] <... close resumed>) = 0 [pid 11303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11303] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 5845] <... clone resumed>, child_tidptr=0x5555693e0750) = 11339 [pid 11303] <... mprotect resumed>) = 0 [pid 11339] set_robust_list(0x5555693e0760, 24 [pid 11317] mkdir("./bus", 0777 [pid 11303] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11339] <... set_robust_list resumed>) = 0 [pid 11317] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11303] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11317] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11303] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [ 423.090786][T11317] loop3: detected capacity change from 0 to 32768 [pid 11339] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 11340 attached [pid 11340] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11303] <... clone3 resumed> => {parent_tid=[11340]}, 88) = 11340 [pid 11340] <... rseq resumed>) = 0 [pid 11339] setpgid(0, 0 [pid 11303] rt_sigprocmask(SIG_SETMASK, [], [pid 11340] set_robust_list(0x7ff7dbc719a0, 24 [pid 11303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11340] <... set_robust_list resumed>) = 0 [pid 11339] <... setpgid resumed>) = 0 [pid 11303] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11303] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11340] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11339] <... openat resumed>) = 3 [pid 11340] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11339] write(3, "1000", 4 [pid 11340] <... futex resumed>) = 1 [pid 11339] <... write resumed>) = 4 [pid 11303] <... futex resumed>) = 0 [pid 11339] close(3 [pid 11303] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11340] memfd_create("syzkaller", 0 [pid 11303] <... futex resumed>) = 0 [pid 11339] <... close resumed>) = 0 executing program [pid 11339] write(1, "executing program\n", 18 [pid 11303] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11339] <... write resumed>) = 18 [ 423.159076][T11313] bcachefs: bch2_fs_get_tree() error: EINVAL [ 423.176939][T11317] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (11317) [pid 11313] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11340] <... memfd_create resumed>) = 4 [pid 11339] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11339] <... futex resumed>) = 0 [pid 11313] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 11339] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11340] <... mmap resumed>) = 0x7ff7d3800000 [pid 11339] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 11313] <... openat resumed>) = 3 [pid 11339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11313] ioctl(3, LOOP_CLR_FD [pid 11339] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 11313] <... ioctl resumed>) = 0 [pid 11339] <... mprotect resumed>) = 0 [pid 11313] close(3 [pid 11339] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11339] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11341 attached => {parent_tid=[11341]}, 88) = 11341 [pid 11339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11339] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11339] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11341] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [ 423.208685][T11317] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 423.227973][T11317] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [pid 11341] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11341] memfd_create("syzkaller", 0) = 3 [pid 11341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11315] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11304] <... creat resumed>) = 3 [pid 11304] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11304] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11262] <... creat resumed>) = 3 [pid 11315] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 423.399109][T11315] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11262] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11315] <... openat resumed>) = 3 [pid 11315] ioctl(3, LOOP_CLR_FD) = 0 [pid 11315] close(3 [pid 11262] <... futex resumed>) = 0 [ 423.441786][T11317] BTRFS info (device loop3): rebuilding free space tree [pid 11262] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11313] <... close resumed>) = 0 [pid 11313] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11313] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11312] <... futex resumed>) = 0 [pid 11313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11312] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11313] creat("./bus", 000 [pid 11312] <... futex resumed>) = 0 [pid 11313] <... creat resumed>) = 3 [pid 11312] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11313] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11312] <... futex resumed>) = 0 [pid 11313] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11312] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 423.529921][T11317] BTRFS info (device loop3): disabling free space tree [ 423.536990][T11317] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 11312] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 11312] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11312] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11312] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11312] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11358]}, 88) = 11358 [pid 11312] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 11358 attached [pid 11312] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11358] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11312] <... futex resumed>) = 0 [ 423.582910][T11317] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11358] <... rseq resumed>) = 0 [pid 11312] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11358] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11358] memfd_create("syzkaller", 0) = 4 [pid 11358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11340] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11315] <... close resumed>) = 0 [pid 11315] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11315] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11314] <... futex resumed>) = 0 [pid 11314] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11315] <... futex resumed>) = 0 [pid 11314] <... futex resumed>) = 1 [pid 11315] creat("./bus", 000 [pid 11314] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 11314] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11314] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11359]}, 88) = 11359 [pid 11314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 11359 attached [pid 11314] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11359] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11314] <... futex resumed>) = 0 [pid 11359] <... rseq resumed>) = 0 [pid 11314] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11359] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11359] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11359] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11314] <... futex resumed>) = 0 [pid 11359] memfd_create("syzkaller", 0 [pid 11314] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11314] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11359] <... memfd_create resumed>) = 4 [pid 11359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11358] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11341] <... write resumed>) = 16777216 [pid 11341] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11341] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 11341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11341] ioctl(4, LOOP_CLR_FD) = 0 [pid 11341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11341] close(4) = 0 [pid 11341] close(3 [pid 11340] <... write resumed>) = 16777216 [pid 11340] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11340] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 11340] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11340] close(4) = 0 [pid 11340] close(5) = 0 [pid 11340] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 424.168745][T11340] loop1: detected capacity change from 0 to 32768 [ 424.201914][T11340] BTRFS: device /dev/loop1 (7:1) using temp-fsid 3509de4c-cbf5-472b-943d-7b392335e71f [ 424.227716][T11340] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (11340) [pid 11340] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11359] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11341] <... close resumed>) = 0 [pid 11341] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11341] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11339] <... futex resumed>) = 0 [pid 11339] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11341] <... futex resumed>) = 0 [pid 11341] creat("./bus", 000 [ 424.308728][T11340] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 424.327883][T11340] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 11339] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11358] <... write resumed>) = 16777216 [pid 11358] munmap(0x7ff7d3800000, 138412032 [pid 11339] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11339] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11339] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11339] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11339] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11370 attached [pid 11370] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11339] <... clone3 resumed> => {parent_tid=[11370]}, 88) = 11370 [pid 11370] <... rseq resumed>) = 0 [pid 11339] rt_sigprocmask(SIG_SETMASK, [], [pid 11370] set_robust_list(0x7ff7dbc719a0, 24 [pid 11339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11370] <... set_robust_list resumed>) = 0 [pid 11370] rt_sigprocmask(SIG_SETMASK, [], [pid 11339] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11339] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11370] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11370] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11358] <... munmap resumed>) = 0 [pid 11370] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 11358] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 11370] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11358] <... openat resumed>) = 5 [pid 11370] <... futex resumed>) = 1 [pid 11358] ioctl(5, LOOP_SET_FD, 4 [pid 11339] <... futex resumed>) = 0 [pid 11370] memfd_create("syzkaller", 0 [pid 11339] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11358] <... ioctl resumed>) = 0 [pid 11339] <... futex resumed>) = 0 [pid 11339] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11358] close(4) = 0 [pid 11370] <... memfd_create resumed>) = 4 [pid 11370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11358] close(5 [pid 11370] <... mmap resumed>) = 0x7ff7d3800000 [pid 11358] <... close resumed>) = 0 [pid 11358] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 424.472987][T11358] loop4: detected capacity change from 0 to 32768 [ 424.525558][T11358] BTRFS: device /dev/loop4 (7:4) using temp-fsid c9c9d47f-d729-4849-81f3-682667c9d17e [ 424.556290][T11317] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11358] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11313] <... write resumed>) = 16776704 [pid 11313] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 424.568340][T11358] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (11358) [ 424.588117][T11340] BTRFS info (device loop1): rebuilding free space tree [ 424.617735][T11358] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 424.628141][T11358] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [pid 11313] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11359] <... write resumed>) = 16777216 [pid 11359] munmap(0x7ff7d3800000, 138412032) = 0 [ 424.660152][T11340] BTRFS info (device loop1): disabling free space tree [ 424.667128][T11340] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 424.678855][T11340] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 11359] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 11359] close(4) = 0 [pid 11359] close(5) = 0 [pid 11359] mkdir("./bus", 0777 [pid 11317] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11359] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11359] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11317] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 424.767933][T11359] loop0: detected capacity change from 0 to 32768 [pid 11317] ioctl(4, LOOP_CLR_FD) = 0 [ 424.818766][T11359] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (11359) [ 424.852210][T11358] BTRFS info (device loop4): rebuilding free space tree [ 424.937355][T11359] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 424.961234][T11358] BTRFS info (device loop4): disabling free space tree [ 424.990917][T11358] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 425.007072][T11359] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 11317] close(4 [pid 5847] kill(-11255, SIGKILL [pid 11262] <... futex resumed>) = ? [pid 11255] <... futex resumed>) = ? [pid 5847] <... kill resumed>) = 0 [pid 11262] +++ killed by SIGKILL +++ [pid 5847] kill(11255, SIGKILL) = 0 [ 425.043201][T11358] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11341] <... creat resumed>) = 3 [pid 11341] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11370] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11341] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11315] <... creat resumed>) = 3 [pid 11315] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11315] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11317] <... close resumed>) = ? [pid 11317] +++ killed by SIGKILL +++ [pid 11255] +++ killed by SIGKILL +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=11255, si_uid=0, si_status=SIGKILL, si_utime=15 /* 0.15 s */, si_stime=99 /* 0.99 s */} --- [pid 5847] restart_syscall(<... resuming interrupted kill ...>) = 0 [ 425.133152][T11358] BTRFS info (device loop4): last unmount of filesystem c9c9d47f-d729-4849-81f3-682667c9d17e [ 425.143891][T11340] BTRFS info (device loop1): last unmount of filesystem 3509de4c-cbf5-472b-943d-7b392335e71f [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11407 attached [pid 11407] set_robust_list(0x5555693e0760, 24) = 0 [pid 11407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 11407 [pid 11407] <... prctl resumed>) = 0 [pid 11407] setpgid(0, 0) = 0 [pid 11407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11358] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11358] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 11407] <... openat resumed>) = 3 [pid 11358] <... openat resumed>) = 4 [pid 11407] write(3, "1000", 4 [pid 11358] ioctl(4, LOOP_CLR_FD) = 0 [pid 11340] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11407] <... write resumed>) = 4 [pid 11358] close(4 [pid 11407] close(3) = 0 [pid 11407] write(1, "executing program\n", 18executing program ) = 18 [pid 11340] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 11407] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11340] <... openat resumed>) = 4 [pid 11407] <... futex resumed>) = 0 [pid 11407] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11407] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11340] ioctl(4, LOOP_CLR_FD [pid 11407] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11340] <... ioctl resumed>) = 0 [pid 11407] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11340] close(4 [pid 11407] <... rt_sigprocmask resumed>[], 8) = 0 [ 425.240724][T11359] BTRFS info (device loop0): rebuilding free space tree [pid 11407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[11410]}, 88) = 11410 ./strace-static-x86_64: Process 11410 attached [pid 11407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11410] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11407] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11410] <... rseq resumed>) = 0 [pid 11407] <... futex resumed>) = 0 [pid 11407] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11410] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11410] memfd_create("syzkaller", 0) = 3 [pid 11410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 425.325562][T11359] BTRFS info (device loop0): disabling free space tree [ 425.358482][T11359] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 425.387404][T11359] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 425.454197][T11359] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11359] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 11359] ioctl(4, LOOP_CLR_FD) = 0 [pid 11359] close(4 [pid 11358] <... close resumed>) = 0 [pid 11370] <... write resumed>) = 16777216 [pid 11370] munmap(0x7ff7d3800000, 138412032 [pid 11358] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11358] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11312] <... futex resumed>) = 0 [pid 11312] exit_group(0 [pid 11358] <... futex resumed>) = ? [pid 11313] <... futex resumed>) = ? [pid 11312] <... exit_group resumed>) = ? [pid 11358] +++ exited with 0 +++ [pid 11313] +++ exited with 0 +++ [pid 11370] <... munmap resumed>) = 0 [pid 11340] <... close resumed>) = 0 [pid 11370] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 11340] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11312] +++ exited with 0 +++ [pid 11340] <... futex resumed>) = 1 [pid 11303] <... futex resumed>) = 0 [pid 11340] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11303] exit_group(0 [pid 11370] <... openat resumed>) = 5 [pid 11340] <... futex resumed>) = ? [pid 11303] <... exit_group resumed>) = ? [pid 11370] ioctl(5, LOOP_SET_FD, 4 [pid 11340] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11312, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=132 /* 1.32 s */} --- [pid 11370] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 5850] restart_syscall(<... resuming interrupted clone ...> [pid 11370] ioctl(5, LOOP_CLR_FD [pid 5850] <... restart_syscall resumed>) = 0 [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11411 attached [pid 11370] <... ioctl resumed>) = 0 [pid 11304] <... futex resumed>) = ? [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 11411 [pid 11411] set_robust_list(0x5555693e0760, 24 [pid 11304] +++ exited with 0 +++ [pid 11303] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11303, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=84 /* 0.84 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 11411] <... set_robust_list resumed>) = 0 [pid 11411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... restart_syscall resumed>) = 0 [pid 11411] <... prctl resumed>) = 0 [pid 11370] ioctl(5, LOOP_SET_FD, 4 [pid 11411] setpgid(0, 0 [pid 11370] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 11411] <... setpgid resumed>) = 0 [pid 11370] close(5 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 11411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11370] <... close resumed>) = 0 [pid 5844] <... openat resumed>) = 3 [pid 11370] close(4 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 11411] <... openat resumed>) = 3 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11412 attached , child_tidptr=0x5555693e0750) = 11412 [pid 11412] set_robust_list(0x5555693e0760, 24) = 0 [pid 11412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11412] setpgid(0, 0) = 0 [pid 11412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11411] write(3, "1000", 4) = 4 [pid 11411] close(3 [pid 11412] <... openat resumed>) = 3 [pid 11411] <... close resumed>) = 0 [pid 11412] write(3, "1000", 4) = 4 [pid 11412] close(3executing program [pid 11411] write(1, "executing program\n", 18 [pid 11412] <... close resumed>) = 0 [pid 11412] write(1, "executing program\n", 18) = 18 [pid 11412] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 executing program [pid 11412] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11411] <... write resumed>) = 18 [pid 11412] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 11411] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11412] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11412] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11411] <... futex resumed>) = 0 [pid 11412] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11411] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11412] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 11412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11411] <... mmap resumed>) = 0x7ff7dbc72000 [pid 11411] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 11412] <... clone3 resumed> => {parent_tid=[11413]}, 88) = 11413 [pid 11411] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 11413 attached [pid 11412] rt_sigprocmask(SIG_SETMASK, [], [pid 11411] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11413] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11411] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11413] <... rseq resumed>) = 0 [pid 11411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11413] set_robust_list(0x7ff7dbc929a0, 24./strace-static-x86_64: Process 11414 attached ) = 0 [pid 11412] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11413] rt_sigprocmask(SIG_SETMASK, [], [pid 11411] <... clone3 resumed> => {parent_tid=[11414]}, 88) = 11414 [pid 11414] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11413] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11412] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11411] rt_sigprocmask(SIG_SETMASK, [], [pid 11414] <... rseq resumed>) = 0 [pid 11412] <... futex resumed>) = 0 [pid 11412] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11414] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11413] memfd_create("syzkaller", 0 [pid 11411] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11414] rt_sigprocmask(SIG_SETMASK, [], [pid 11413] <... memfd_create resumed>) = 3 [pid 11414] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11411] <... futex resumed>) = 0 [pid 11414] memfd_create("syzkaller", 0 [pid 11411] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11414] <... memfd_create resumed>) = 3 [pid 11413] <... mmap resumed>) = 0x7ff7d3800000 [pid 11410] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11359] <... close resumed>) = 0 [pid 11370] <... close resumed>) = 0 [pid 11359] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11370] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11359] <... futex resumed>) = 1 [pid 11314] <... futex resumed>) = 0 [pid 11359] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11370] <... futex resumed>) = 1 [pid 11314] exit_group(0 [pid 11370] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11339] <... futex resumed>) = 0 [pid 11339] exit_group(0 [pid 11370] <... futex resumed>) = ? [pid 11341] <... futex resumed>) = ? [pid 11339] <... exit_group resumed>) = ? [pid 11370] +++ exited with 0 +++ [pid 11341] +++ exited with 0 +++ [pid 11339] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11339, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=60 /* 0.60 s */} --- [pid 11359] <... futex resumed>) = ? [pid 11315] <... futex resumed>) = ? [pid 11314] <... exit_group resumed>) = ? [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 11359] +++ exited with 0 +++ [pid 5845] <... openat resumed>) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 11315] +++ exited with 0 +++ [pid 11314] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11314, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=106 /* 1.06 s */} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11415 attached , child_tidptr=0x5555693e0750) = 11415 [pid 11415] set_robust_list(0x5555693e0760, 24) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 11415] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] <... openat resumed>) = 3 [pid 11415] <... prctl resumed>) = 0 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 11415] setpgid(0, 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 11415] <... setpgid resumed>) = 0 [pid 5843] close(3 [pid 11415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] <... close resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11416 attached [pid 11415] <... openat resumed>) = 3 [pid 5843] <... clone resumed>, child_tidptr=0x5555693e0750) = 11416 [pid 11416] set_robust_list(0x5555693e0760, 24 [pid 11415] write(3, "1000", 4 [pid 11416] <... set_robust_list resumed>) = 0 [pid 11416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11416] setpgid(0, 0) = 0 executing program [pid 11416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 11415] <... write resumed>) = 4 [pid 11415] close(3) = 0 [pid 11415] write(1, "executing program\n", 18) = 18 [pid 11416] <... openat resumed>) = 3 [pid 11416] write(3, "1000", 4) = 4 executing program [pid 11416] close(3) = 0 [pid 11416] write(1, "executing program\n", 18) = 18 [pid 11416] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11416] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11416] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11416] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11416] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11416] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11417 attached => {parent_tid=[11417]}, 88) = 11417 [pid 11415] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11416] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11415] <... futex resumed>) = 0 [pid 11416] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11417] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11416] <... futex resumed>) = 0 [pid 11417] <... rseq resumed>) = 0 [pid 11416] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11417] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11417] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11417] memfd_create("syzkaller", 0 [pid 11415] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11415] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11417] <... memfd_create resumed>) = 3 [pid 11417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11415] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11418 attached [pid 11418] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11415] <... clone3 resumed> => {parent_tid=[11418]}, 88) = 11418 [pid 11415] rt_sigprocmask(SIG_SETMASK, [], [pid 11418] <... rseq resumed>) = 0 [pid 11418] set_robust_list(0x7ff7dbc929a0, 24 [pid 11415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11418] <... set_robust_list resumed>) = 0 [pid 11415] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11418] rt_sigprocmask(SIG_SETMASK, [], [pid 11415] <... futex resumed>) = 0 [pid 11418] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11415] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11418] memfd_create("syzkaller", 0) = 3 [pid 11418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11410] <... write resumed>) = 16777216 [pid 11410] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11410] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 11410] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11410] close(3) = 0 [pid 11410] close(4) = 0 [pid 11410] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 426.253779][T11410] loop3: detected capacity change from 0 to 32768 [ 426.368501][T11410] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 426.387895][T11410] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11410] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11418] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11410] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11413] <... write resumed>) = 16777216 [pid 11410] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11413] munmap(0x7ff7d3800000, 138412032 [pid 11410] <... openat resumed>) = 3 [pid 11410] ioctl(3, LOOP_CLR_FD) = 0 [ 426.584158][T11410] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11410] close(3 [pid 11413] <... munmap resumed>) = 0 [pid 11413] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 11413] ioctl(4, LOOP_SET_FD, 3 [pid 11414] <... write resumed>) = 16777216 [pid 11413] <... ioctl resumed>) = 0 [pid 11414] munmap(0x7ff7d3800000, 138412032 [pid 11413] close(3) = 0 [pid 11413] close(4) = 0 [pid 11413] mkdir("./file1", 0777) = -1 EEXIST (File exists) [pid 11414] <... munmap resumed>) = 0 [ 426.663194][T11413] loop1: detected capacity change from 0 to 32768 [pid 11413] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11414] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 11414] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11414] close(3) = 0 [pid 11414] close(4) = 0 [pid 11414] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 426.717128][T11414] loop4: detected capacity change from 0 to 32768 [pid 11414] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11417] <... write resumed>) = 16777216 [ 426.823774][T11413] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 426.867955][T11413] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 426.878544][T11414] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11410] <... close resumed>) = 0 [pid 11410] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11418] <... write resumed>) = 16777216 [pid 11417] munmap(0x7ff7d3800000, 138412032 [pid 11407] <... futex resumed>) = 0 [pid 11410] creat("./bus", 000 [pid 11407] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11410] <... creat resumed>) = 3 [pid 11407] <... futex resumed>) = 0 [pid 11410] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11407] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11410] <... futex resumed>) = 0 [pid 11407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11410] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11407] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11407] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11418] munmap(0x7ff7d3800000, 138412032 [pid 11417] <... munmap resumed>) = 0 [pid 11417] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 426.915128][T11414] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11417] ioctl(4, LOOP_SET_FD, 3 [pid 11418] <... munmap resumed>) = 0 [pid 11418] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 11418] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11418] ioctl(4, LOOP_CLR_FD) = 0 [pid 11407] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11407] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11407] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 11418] ioctl(4, LOOP_SET_FD, 3 [pid 11407] <... mprotect resumed>) = 0 [pid 11418] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 11407] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11418] close(4 [pid 11407] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11418] <... close resumed>) = 0 [pid 11407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} [pid 11418] close(3 [pid 11407] <... clone3 resumed> => {parent_tid=[11440]}, 88) = 11440 ./strace-static-x86_64: Process 11440 attached [pid 11407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11407] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11407] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11440] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11417] <... ioctl resumed>) = 0 [pid 11440] <... rseq resumed>) = 0 [pid 11417] close(3 [pid 11440] set_robust_list(0x7ff7dbc719a0, 24 [pid 11417] <... close resumed>) = 0 [pid 11440] <... set_robust_list resumed>) = 0 [pid 11417] close(4 [pid 11440] rt_sigprocmask(SIG_SETMASK, [], [pid 11417] <... close resumed>) = 0 [pid 11440] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11417] mkdir("./file1", 0777 [pid 11440] memfd_create("syzkaller", 0 [pid 11417] <... mkdir resumed>) = -1 EEXIST (File exists) [ 426.975797][T11417] loop0: detected capacity change from 0 to 32768 [pid 11440] <... memfd_create resumed>) = 4 [pid 11417] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11413] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11413] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 11413] ioctl(3, LOOP_CLR_FD) = 0 [ 427.082848][T11413] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11413] close(3 [pid 11418] <... close resumed>) = 0 [pid 11418] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11415] <... futex resumed>) = 0 [pid 11418] creat("./bus", 000 [pid 11415] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 427.191360][T11417] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [pid 11415] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 11415] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11415] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 11414] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11415] <... mprotect resumed>) = 0 [pid 11415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11448 attached => {parent_tid=[11448]}, 88) = 11448 [pid 11415] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11415] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11415] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11448] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11448] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11448] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11448] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11448] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11415] <... futex resumed>) = 0 [pid 11415] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11415] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11448] memfd_create("syzkaller", 0) = 4 [pid 11448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11414] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 11414] ioctl(3, LOOP_CLR_FD) = 0 [ 427.242993][T11414] bcachefs: bch2_fs_get_tree() error: EINVAL [ 427.244117][T11417] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [pid 11414] close(3 [pid 11413] <... close resumed>) = 0 [pid 11413] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11412] <... futex resumed>) = 0 [pid 11413] creat("./bus", 000 [pid 11412] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11412] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11440] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11417] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11412] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11412] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11412] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 11417] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 11412] <... mprotect resumed>) = 0 [pid 11417] <... openat resumed>) = 3 [pid 11412] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11417] ioctl(3, LOOP_CLR_FD) = 0 [pid 11412] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11417] close(3 [ 427.529274][T11417] bcachefs: bch2_fs_get_tree() error: EINVAL [pid 11412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11449 attached [pid 11414] <... close resumed>) = 0 [pid 11412] <... clone3 resumed> => {parent_tid=[11449]}, 88) = 11449 [pid 11449] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11412] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11412] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11449] <... rseq resumed>) = 0 [pid 11449] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11414] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11449] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11449] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11411] <... futex resumed>) = 0 [pid 11449] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 11414] <... futex resumed>) = 1 [pid 11449] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11411] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11449] <... futex resumed>) = 1 [pid 11414] creat("./bus", 000 [pid 11412] <... futex resumed>) = 0 [pid 11411] <... futex resumed>) = 0 [pid 11449] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11412] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11411] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11449] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11412] <... futex resumed>) = 0 [pid 11449] memfd_create("syzkaller", 0 [pid 11412] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11449] <... memfd_create resumed>) = 4 [pid 11449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11411] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11411] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11411] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11411] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11450 attached [pid 11450] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11411] <... clone3 resumed> => {parent_tid=[11450]}, 88) = 11450 [pid 11450] <... rseq resumed>) = 0 [pid 11411] rt_sigprocmask(SIG_SETMASK, [], [pid 11450] set_robust_list(0x7ff7dbc719a0, 24 [pid 11411] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11450] <... set_robust_list resumed>) = 0 [pid 11411] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11450] rt_sigprocmask(SIG_SETMASK, [], [pid 11411] <... futex resumed>) = 0 [pid 11450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11411] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11450] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683) = -1 EBADF (Bad file descriptor) [pid 11450] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11411] <... futex resumed>) = 0 [pid 11450] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11411] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11411] <... futex resumed>) = 0 [pid 11450] memfd_create("syzkaller", 0 [pid 11411] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11450] <... memfd_create resumed>) = 4 [pid 11450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11448] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11417] <... close resumed>) = 0 [pid 11417] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11416] <... futex resumed>) = 0 [pid 11416] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11416] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11440] <... write resumed>) = 16777216 [pid 11417] creat("./bus", 000 [pid 11440] munmap(0x7ff7d3800000, 138412032 [pid 11416] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11416] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11440] <... munmap resumed>) = 0 [pid 11416] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE [pid 11440] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11416] <... mprotect resumed>) = 0 [pid 11440] <... openat resumed>) = 5 [pid 11416] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11440] ioctl(5, LOOP_SET_FD, 4 [pid 11416] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11440] <... ioctl resumed>) = 0 [pid 11416] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11451 attached [pid 11440] close(4) = 0 [pid 11451] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053 [pid 11440] close(5 [pid 11451] <... rseq resumed>) = 0 [pid 11440] <... close resumed>) = 0 [pid 11416] <... clone3 resumed> => {parent_tid=[11451]}, 88) = 11451 [pid 11451] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11451] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11451] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11440] mkdir("./bus", 0777 [pid 11416] rt_sigprocmask(SIG_SETMASK, [], [pid 11440] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11416] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11416] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11440] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11451] <... futex resumed>) = 0 [pid 11416] <... futex resumed>) = 1 [pid 11451] write(-1, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11416] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11451] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 11451] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11451] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11416] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11416] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11451] <... futex resumed>) = 0 [pid 11416] <... futex resumed>) = 1 [pid 11451] memfd_create("syzkaller", 0) = 4 [pid 11451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11416] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11451] <... mmap resumed>) = 0x7ff7d3800000 [ 427.939050][T11440] loop3: detected capacity change from 0 to 32768 [ 427.970489][T11440] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor309 (11440) [ 428.034863][T11440] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11410] <... write resumed>) = 16776704 [pid 11410] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11410] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [ 428.087742][T11440] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 428.259312][T11440] BTRFS info (device loop3): rebuilding free space tree [pid 11449] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11450] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11413] <... creat resumed>) = 3 [pid 11418] <... creat resumed>) = 3 [pid 11417] <... creat resumed>) = 3 [pid 11414] <... creat resumed>) = 3 [pid 11413] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11418] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11414] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11413] <... futex resumed>) = 0 [pid 11418] <... futex resumed>) = 0 [pid 11414] <... futex resumed>) = 0 [pid 11413] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11418] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11414] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11417] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 428.335832][T11440] BTRFS info (device loop3): disabling free space tree [ 428.378726][T11440] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [pid 11417] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11448] <... write resumed>) = 16777216 [pid 11451] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11448] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11448] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 5 [pid 11448] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11448] ioctl(5, LOOP_CLR_FD) = 0 [pid 11448] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [ 428.427761][T11440] BTRFS info (device loop3): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 428.450571][T11440] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11448] close(5) = 0 [pid 11448] close(4 [pid 11449] <... write resumed>) = 16777216 [pid 11449] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11449] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 5 [pid 11449] ioctl(5, LOOP_SET_FD, 4 [pid 11440] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11440] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 11440] ioctl(4, LOOP_CLR_FD [pid 11449] <... ioctl resumed>) = 0 [pid 11440] <... ioctl resumed>) = 0 [pid 11449] close(4) = 0 [pid 11449] close(5) = 0 [pid 11449] mkdir("./bus", 0777) = -1 EEXIST (File exists) [pid 11449] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [ 428.587091][T11449] loop1: detected capacity change from 0 to 32768 [ 428.623654][T11449] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor309 (11449) [ 428.701908][T11449] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11440] close(4 [pid 11448] <... close resumed>) = 0 [pid 11448] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11415] <... futex resumed>) = 0 [pid 11448] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11415] exit_group(0 [pid 11448] <... futex resumed>) = ? [pid 11418] <... futex resumed>) = ? [pid 11415] <... exit_group resumed>) = ? [pid 11448] +++ exited with 0 +++ [pid 11418] +++ exited with 0 +++ [pid 11415] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11415, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=84 /* 0.84 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 428.768317][T11449] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 11451] <... write resumed>) = 16777216 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 11483 ./strace-static-x86_64: Process 11483 attached [pid 11451] munmap(0x7ff7d3800000, 138412032 [pid 11450] <... write resumed>) = 16777216 [pid 11440] <... close resumed>) = 0 [pid 11450] munmap(0x7ff7d3800000, 138412032 [pid 11483] set_robust_list(0x5555693e0760, 24) = 0 [pid 11483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11483] setpgid(0, 0) = 0 [pid 11483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11483] write(3, "1000", 4) = 4 [pid 11483] close(3) = 0 executing program [pid 11483] write(1, "executing program\n", 18) = 18 [pid 11483] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11483] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11483] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11483] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11483] rt_sigprocmask(SIG_BLOCK, ~[], [pid 11440] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11483] <... rt_sigprocmask resumed>[], 8) = 0 [pid 11407] <... futex resumed>) = 0 [pid 11483] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11407] exit_group(0./strace-static-x86_64: Process 11485 attached [pid 11483] <... clone3 resumed> => {parent_tid=[11485]}, 88) = 11485 [pid 11410] <... futex resumed>) = ? [pid 11407] <... exit_group resumed>) = ? [pid 11483] rt_sigprocmask(SIG_SETMASK, [], [pid 11451] <... munmap resumed>) = 0 [pid 11440] +++ exited with 0 +++ [pid 11410] +++ exited with 0 +++ [pid 11485] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11483] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11483] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11483] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11485] <... rseq resumed>) = 0 [pid 11485] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11485] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 428.916969][T11449] BTRFS info (device loop1): rebuilding free space tree [pid 11485] memfd_create("syzkaller", 0) = 3 [pid 11451] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 11485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 11451] <... openat resumed>) = 5 [pid 11485] <... mmap resumed>) = 0x7ff7d3800000 [pid 11451] ioctl(5, LOOP_SET_FD, 4 [pid 11407] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11407, si_uid=0, si_status=0, si_utime=17 /* 0.17 s */, si_stime=111 /* 1.11 s */} --- [pid 11450] <... munmap resumed>) = 0 [pid 11450] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 5 [pid 5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11450] ioctl(5, LOOP_SET_FD, 4 [pid 5847] <... openat resumed>) = 3 [pid 5847] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 11451] <... ioctl resumed>) = 0 [pid 11451] close(4) = 0 [pid 11451] close(5) = 0 [pid 11450] <... ioctl resumed>) = 0 [pid 11451] mkdir("./bus", 0777 [pid 11450] close(4 [pid 11451] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11450] <... close resumed>) = 0 [ 428.958115][T11451] loop0: detected capacity change from 0 to 32768 [ 428.973775][T11449] BTRFS info (device loop1): disabling free space tree [ 428.988193][T11450] loop4: detected capacity change from 0 to 32768 [pid 11451] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11450] close(5) = 0 [pid 5847] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 11450] mkdir("./bus", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 11486 attached [pid 11450] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,nodatasum,clear_cache,noacl,max_inline=074t,barrier,nospace_cache," [pid 11486] set_robust_list(0x5555693e0760, 24 [pid 5847] <... clone resumed>, child_tidptr=0x5555693e0750) = 11486 [pid 11486] <... set_robust_list resumed>) = 0 [pid 11486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11486] setpgid(0, 0) = 0 [pid 11486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 429.002413][T11451] BTRFS: device /dev/loop0 (7:0) using temp-fsid b088cf0d-4406-475e-8d2e-471bff5d127c [ 429.018980][T11449] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 429.038846][T11451] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor309 (11451) [pid 11486] write(3, "1000", 4) = 4 [pid 11486] close(3) = 0 [pid 11486] write(1, "executing program\n", 18executing program ) = 18 [pid 11486] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11486] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11486] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11486] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11486] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [ 429.066420][T11449] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 429.100159][T11449] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11486] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11486] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11487 attached [pid 11487] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11486] <... clone3 resumed> => {parent_tid=[11487]}, 88) = 11487 [pid 11487] <... rseq resumed>) = 0 [pid 11486] rt_sigprocmask(SIG_SETMASK, [], [pid 11487] set_robust_list(0x7ff7dbc929a0, 24 [pid 11486] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11487] <... set_robust_list resumed>) = 0 [pid 11486] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11487] rt_sigprocmask(SIG_SETMASK, [], [pid 11486] <... futex resumed>) = 0 [pid 11487] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11487] memfd_create("syzkaller", 0 [pid 11486] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11487] <... memfd_create resumed>) = 3 [pid 11487] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 429.111082][T11450] BTRFS: device /dev/loop4 (7:4) using temp-fsid bbef27cc-85aa-4aa2-925e-f9fd7a96c64b [ 429.117685][T11451] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 429.124032][T11450] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor309 (11450) [ 429.145198][T11451] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 11449] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11449] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 429.221058][T11450] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [pid 11449] ioctl(4, LOOP_CLR_FD) = 0 [ 429.292227][T11450] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 429.327244][T11451] BTRFS info (device loop0): rebuilding free space tree [ 429.404167][T11451] BTRFS info (device loop0): disabling free space tree [ 429.434847][T11451] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 429.467749][T11451] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11449] close(4 [pid 11485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11449] <... close resumed>) = 0 [ 429.538530][T11450] BTRFS info (device loop4): rebuilding free space tree [ 429.578052][T11451] BTRFS info (device loop0): last unmount of filesystem b088cf0d-4406-475e-8d2e-471bff5d127c [pid 11449] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11412] <... futex resumed>) = 0 [pid 11412] exit_group(0) = ? [pid 11413] <... futex resumed>) = ? [pid 11413] +++ exited with 0 +++ [pid 11449] +++ exited with 0 +++ [pid 11412] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11412, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=84 /* 0.84 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5844] close(3) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11520 attached , child_tidptr=0x5555693e0750) = 11520 [pid 11520] set_robust_list(0x5555693e0760, 24) = 0 [ 429.580177][T11450] BTRFS info (device loop4): disabling free space tree [ 429.596133][T11450] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 429.606107][T11450] BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [pid 11520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11487] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11520] setpgid(0, 0) = 0 [pid 11520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11520] write(3, "1000", 4) = 4 [pid 11520] close(3) = 0 [pid 11520] write(1, "executing program\n", 18executing program ) = 18 [pid 11520] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11520] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, [pid 11451] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11520] <... rt_sigaction resumed>NULL, 8) = 0 [pid 11520] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11520] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE [pid 11451] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 11520] <... mprotect resumed>) = 0 [pid 11451] <... openat resumed>) = 4 [pid 11520] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11451] ioctl(4, LOOP_CLR_FD [pid 11520] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} [pid 11451] <... ioctl resumed>) = 0 [pid 11451] close(4./strace-static-x86_64: Process 11521 attached [pid 11520] <... clone3 resumed> => {parent_tid=[11521]}, 88) = 11521 [pid 11521] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11520] rt_sigprocmask(SIG_SETMASK, [], [pid 11521] <... rseq resumed>) = 0 [pid 11521] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11521] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11521] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11520] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11520] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11521] <... futex resumed>) = 0 [pid 11520] <... futex resumed>) = 1 [pid 11521] memfd_create("syzkaller", 0 [pid 11520] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11521] <... memfd_create resumed>) = 3 [pid 11521] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 429.713198][T11450] BTRFS info (device loop4): last unmount of filesystem bbef27cc-85aa-4aa2-925e-f9fd7a96c64b [pid 11450] <... mount resumed>) = -1 ENOTDIR (Not a directory) [pid 11450] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 11450] ioctl(4, LOOP_CLR_FD) = 0 [pid 11450] close(4 [pid 11451] <... close resumed>) = 0 [pid 11451] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11416] <... futex resumed>) = 0 [pid 11451] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11416] exit_group(0 [pid 11451] <... futex resumed>) = ? [pid 11417] <... futex resumed>) = ? [pid 11416] <... exit_group resumed>) = ? [pid 11451] +++ exited with 0 +++ [pid 11417] +++ exited with 0 +++ [pid 11416] +++ exited with 0 +++ [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11416, si_uid=0, si_status=0, si_utime=19 /* 0.19 s */, si_stime=89 /* 0.89 s */} --- [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5843] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5843] close(3) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 11522 ./strace-static-x86_64: Process 11522 attached [pid 11522] set_robust_list(0x5555693e0760, 24) = 0 [pid 11522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11522] setpgid(0, 0) = 0 [pid 11522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11522] write(3, "1000", 4) = 4 [pid 11522] close(3) = 0 executing program [pid 11522] write(1, "executing program\n", 18) = 18 [pid 11522] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11522] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11522] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11522] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11522] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11522] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11523 attached [pid 11523] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11522] <... clone3 resumed> => {parent_tid=[11523]}, 88) = 11523 [pid 11523] <... rseq resumed>) = 0 [pid 11522] rt_sigprocmask(SIG_SETMASK, [], [pid 11523] set_robust_list(0x7ff7dbc929a0, 24 [pid 11522] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11523] <... set_robust_list resumed>) = 0 [pid 11522] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11523] rt_sigprocmask(SIG_SETMASK, [], [pid 11522] <... futex resumed>) = 0 [pid 11523] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11522] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11523] memfd_create("syzkaller", 0) = 3 [pid 11523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [pid 11485] <... write resumed>) = 16777216 [pid 11487] <... write resumed>) = 16777216 [pid 11485] munmap(0x7ff7d3800000, 138412032 [ 430.107920][ T30] INFO: task kworker/u8:0:11 blocked for more than 143 seconds. [ 430.115789][ T30] Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [pid 11487] munmap(0x7ff7d3800000, 138412032 [pid 11485] <... munmap resumed>) = 0 [pid 11487] <... munmap resumed>) = 0 [pid 11450] <... close resumed>) = 0 [pid 11487] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 11450] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11487] <... openat resumed>) = 4 [pid 11485] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 11450] <... futex resumed>) = 1 [pid 11487] ioctl(4, LOOP_SET_FD, 3 [pid 11450] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11485] <... openat resumed>) = 4 [pid 11411] <... futex resumed>) = 0 [pid 11485] ioctl(4, LOOP_SET_FD, 3 [pid 11411] exit_group(0 [pid 11485] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 11411] <... exit_group resumed>) = ? [pid 11485] ioctl(4, LOOP_CLR_FD) = 0 [pid 11414] <... futex resumed>) = ? [pid 11414] +++ exited with 0 +++ [pid 11485] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11485] close(4) = 0 [pid 11485] close(3 [pid 11450] <... futex resumed>) = ? [ 430.157821][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.166571][ T30] task:kworker/u8:0 state:D stack:21424 pid:11 tgid:11 ppid:2 flags:0x00004000 [ 430.190513][T11487] loop3: detected capacity change from 0 to 32768 [ 430.201429][ T30] Workqueue: btree_update btree_interior_update_work [pid 11450] +++ exited with 0 +++ [pid 11411] +++ exited with 0 +++ [pid 5850] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11411, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=96 /* 0.96 s */} --- [pid 5850] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5850] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5850] close(3) = 0 [pid 5850] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11524 attached [pid 11487] <... ioctl resumed>) = 0 [pid 11487] close(3 [pid 5850] <... clone resumed>, child_tidptr=0x5555693e0750) = 11524 [pid 11524] set_robust_list(0x5555693e0760, 24) = 0 [pid 11524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 11487] <... close resumed>) = 0 [pid 11524] <... prctl resumed>) = 0 [pid 11487] close(4 [pid 11524] setpgid(0, 0) = 0 [pid 11524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11524] write(3, "1000", 4) = 4 [pid 11524] close(3 [pid 11521] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11487] <... close resumed>) = 0 [pid 11524] <... close resumed>) = 0 executing program [pid 11524] write(1, "executing program\n", 18) = 18 [pid 11524] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11524] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11524] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11524] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11524] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11524] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11524] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0}./strace-static-x86_64: Process 11525 attached [pid 11487] mkdir("./file1", 0777 [pid 11524] <... clone3 resumed> => {parent_tid=[11525]}, 88) = 11525 [pid 11524] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11524] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11525] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053 [pid 11524] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 11487] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 11525] <... rseq resumed>) = 0 [pid 11487] mount("/dev/loop3", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 430.229042][ T30] Call Trace: [ 430.232895][ T30] [ 430.237681][ T30] __schedule+0x17fb/0x4be0 [ 430.244609][ T30] ? __journal_res_get+0x1e98/0x2660 [ 430.267895][ T30] ? __pfx___schedule+0x10/0x10 [ 430.273267][ T30] ? __pfx_lock_release+0x10/0x10 [pid 11525] set_robust_list(0x7ff7dbc929a0, 24) = 0 [pid 11525] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11525] memfd_create("syzkaller", 0) = 3 [pid 11525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 430.291364][ T30] ? kthread_data+0x52/0xd0 [ 430.296247][ T30] ? wq_worker_sleeping+0x66/0x240 [ 430.314375][ T30] ? schedule+0x90/0x320 [ 430.347689][ T30] schedule+0x14b/0x320 [ 430.351949][ T30] __closure_sync+0x259/0x2f0 [ 430.356673][ T30] ? __closure_sync+0x149/0x2f0 [ 430.398426][ T30] ? __pfx___closure_sync+0x10/0x10 [ 430.403732][ T30] ? closure_wait+0xa4/0xf0 [ 430.427680][ T30] bch2_journal_res_get_slowpath+0x55a/0x710 [ 430.433825][ T30] ? __pfx_bch2_journal_res_get_slowpath+0x10/0x10 [pid 11485] <... close resumed>) = 0 [pid 11485] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11485] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11483] <... futex resumed>) = 0 [ 430.467672][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [ 430.473091][ T30] ? bch2_trans_unlock+0x346/0x470 [ 430.497728][ T30] ? run_btree_triggers+0x1263/0x1270 [ 430.503290][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [pid 11483] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11485] <... futex resumed>) = 0 [pid 11483] <... futex resumed>) = 1 [pid 11485] creat("./bus", 000 [pid 11483] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11523] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11485] <... creat resumed>) = 3 [pid 11485] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11483] <... futex resumed>) = 0 [pid 11483] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11483] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 11485] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11521] <... write resumed>) = 16777216 [pid 11483] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11483] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 11521] munmap(0x7ff7d3800000, 138412032 [pid 11483] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11483] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 430.518876][ T30] ? bch2_trans_unlock+0x3a6/0x470 [ 430.524268][ T30] bch2_trans_commit_error+0xd94/0x1380 [ 430.552140][ T30] ? six_unlock_ip+0x2ce/0x3e0 [ 430.556997][ T30] ? bch2_trans_unlock_write+0x892/0xce0 [pid 11483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 11521] <... munmap resumed>) = 0 [pid 11483] <... mmap resumed>) = 0x7ff7dbc51000 [pid 11483] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11483] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11483] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0} => {parent_tid=[11526]}, 88) = 11526 [pid 11483] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11483] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11483] futex(0x7ff7dbd6e61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 11526 attached [pid 11521] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 11526] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11526] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11526] rt_sigprocmask(SIG_SETMASK, [], [pid 11521] <... openat resumed>) = 4 [pid 11526] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11521] ioctl(4, LOOP_SET_FD, 3 [pid 11526] memfd_create("syzkaller", 0) = 4 [pid 11526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 430.605897][ T30] ? __pfx_bch2_trans_commit_error+0x10/0x10 [ 430.632067][T11521] loop1: detected capacity change from 0 to 32768 [ 430.638994][ T30] ? bch2_trans_unlock_write+0xc2d/0xce0 [pid 11521] <... ioctl resumed>) = 0 [pid 11521] close(3) = 0 [pid 11521] close(4) = 0 [pid 11521] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 430.657712][ T30] ? bch2_btree_path_verify_locks+0x633/0x720 [ 430.686915][ T30] ? bch2_trans_verify_locks+0x339/0x3c0 [ 430.697743][ T30] __bch2_trans_commit+0x7ead/0x93c0 [ 430.703149][ T30] ? __pfx___bch2_trans_commit+0x10/0x10 [ 430.737991][ T30] ? __bch2_trans_jset_entry_alloc+0x2c7/0x4b0 [ 430.756678][ T30] ? btree_interior_update_work+0x117a/0x2b10 [ 430.777511][ T30] btree_interior_update_work+0x1492/0x2b10 [pid 11521] mount("/dev/loop1", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11523] <... write resumed>) = 16777216 [pid 11523] munmap(0x7ff7d3800000, 138412032 [pid 11525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11523] <... munmap resumed>) = 0 [pid 11523] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 430.785679][ T30] ? __pfx_btree_interior_update_work+0x10/0x10 [ 430.803558][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 430.817681][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 430.825663][T11523] loop0: detected capacity change from 0 to 32768 [ 430.832838][ T30] ? process_scheduled_works+0x976/0x1840 [pid 11523] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11523] close(3) = 0 [pid 11523] close(4) = 0 [pid 11523] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 430.847654][ T30] process_scheduled_works+0xa66/0x1840 [ 430.857717][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 430.863959][ T30] ? assign_work+0x364/0x3d0 [ 430.879090][ T30] worker_thread+0x870/0xd30 [ 430.883777][ T30] ? __kthread_parkme+0x169/0x1d0 [ 430.902748][ T30] ? __pfx_worker_thread+0x10/0x10 [ 430.917674][ T30] kthread+0x2f0/0x390 [ 430.935300][ T30] ? __pfx_worker_thread+0x10/0x10 [pid 11523] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [ 430.956114][ T30] ? __pfx_kthread+0x10/0x10 [ 430.967657][ T30] ret_from_fork+0x4b/0x80 [ 430.972153][ T30] ? __pfx_kthread+0x10/0x10 [ 430.987741][ T30] ret_from_fork_asm+0x1a/0x30 [ 430.997702][ T30] [ 431.000983][ T30] INFO: task kworker/1:0:25 blocked for more than 144 seconds. [ 431.015497][ T30] Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 431.023278][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 431.034054][ T30] task:kworker/1:0 state:D stack:21200 pid:25 tgid:25 ppid:2 flags:0x00004000 [ 431.046121][ T30] Workqueue: bcachefs_write_ref bch2_do_discards_work [ 431.053050][ T30] Call Trace: [ 431.058679][ T30] [ 431.061671][ T30] __schedule+0x17fb/0x4be0 [ 431.066236][ T30] ? __journal_res_get+0x1e98/0x2660 [ 431.074122][ T30] ? __pfx___schedule+0x10/0x10 [ 431.079110][ T30] ? __pfx_lock_release+0x10/0x10 [ 431.086302][ T30] ? kthread_data+0x52/0xd0 [ 431.091208][ T30] ? wq_worker_sleeping+0x66/0x240 [ 431.098590][ T30] ? schedule+0x90/0x320 [ 431.102903][ T30] schedule+0x14b/0x320 [ 431.107111][ T30] __closure_sync+0x259/0x2f0 [ 431.114127][ T30] ? __closure_sync+0x149/0x2f0 [ 431.124984][ T30] ? __pfx___closure_sync+0x10/0x10 [ 431.134729][ T30] ? closure_wait+0xa4/0xf0 [ 431.145577][ T30] bch2_journal_res_get_slowpath+0x55a/0x710 [pid 11526] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11525] <... write resumed>) = 16777216 [ 431.164343][ T30] ? __pfx_bch2_journal_res_get_slowpath+0x10/0x10 [ 431.177653][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [ 431.189035][ T30] ? bch2_trans_unlock+0x346/0x470 [ 431.194368][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [ 431.208439][ T30] ? bch2_trans_unlock+0x3a6/0x470 [pid 11525] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11525] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 11525] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 11525] close(3) = 0 [pid 11525] close(4) = 0 [pid 11525] mkdir("./file1", 0777) = -1 EEXIST (File exists) [ 431.219793][ T30] bch2_trans_commit_error+0xd94/0x1380 [ 431.225638][ T30] ? six_unlock_ip+0x2ce/0x3e0 [ 431.234391][T11525] loop4: detected capacity change from 0 to 32768 [ 431.241142][ T30] ? bch2_trans_unlock_write+0x892/0xce0 [ 431.252823][ T30] ? __pfx_bch2_trans_commit_error+0x10/0x10 [ 431.261150][ T30] ? bch2_trans_unlock_write+0xc2d/0xce0 [ 431.272292][ T30] ? bch2_btree_path_verify_locks+0x633/0x720 [ 431.279942][ T30] ? bch2_trans_verify_locks+0x339/0x3c0 [ 431.287334][ T30] __bch2_trans_commit+0x7ead/0x93c0 [ 431.293737][ T30] ? __pfx___bch2_trans_commit+0x10/0x10 [ 431.301558][ T30] ? bch2_alloc_to_v4_mut+0x579/0x730 [ 431.308075][ T30] bch2_do_discards_work+0x18ee/0x2cf0 [ 431.315206][ T30] ? bch2_do_discards_work+0x2b4/0x2cf0 [pid 11525] mount("/dev/loop4", "./file1", "bcachefs", MS_SYNCHRONOUS, "" [pid 11526] <... write resumed>) = 16777216 [pid 11526] munmap(0x7ff7d3800000, 138412032 [pid 11485] <... write resumed>) = 16776704 [ 431.321804][ T30] ? __pfx_bch2_do_discards_work+0x10/0x10 [ 431.330101][ T30] ? bch2_do_discards_work+0x2b4/0x2cf0 [ 431.336389][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 431.344604][ T30] ? bch2_do_discards_work+0x2b4/0x2cf0 [ 431.351922][ T30] ? process_scheduled_works+0x976/0x1840 [ 431.360853][ T30] process_scheduled_works+0xa66/0x1840 [pid 11526] <... munmap resumed>) = 0 [pid 11485] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11526] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 11485] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11526] <... openat resumed>) = 5 [pid 11526] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11526] ioctl(5, LOOP_CLR_FD) = 0 [pid 11526] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 11526] close(5) = 0 [ 431.369191][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 431.375860][ T30] ? assign_work+0x364/0x3d0 [ 431.381044][ T30] worker_thread+0x870/0xd30 [ 431.385934][ T30] ? __kthread_parkme+0x169/0x1d0 [ 431.391479][ T30] ? __pfx_worker_thread+0x10/0x10 [ 431.396786][ T30] kthread+0x2f0/0x390 [ 431.400981][ T30] ? __pfx_worker_thread+0x10/0x10 [ 431.406134][ T30] ? __pfx_kthread+0x10/0x10 [ 431.410864][ T30] ret_from_fork+0x4b/0x80 [ 431.415333][ T30] ? __pfx_kthread+0x10/0x10 [ 431.420074][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.424950][ T30] [ 431.428215][ T30] INFO: task kworker/1:2:910 blocked for more than 144 seconds. [ 431.436146][ T30] Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 431.444104][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 431.452999][ T30] task:kworker/1:2 state:D stack:21904 pid:910 tgid:910 ppid:2 flags:0x00004000 [ 431.463676][ T30] Workqueue: bcachefs_write_ref bch2_do_discards_fast_work [ 431.471450][ T30] Call Trace: [ 431.474780][ T30] [ 431.477963][ T30] __schedule+0x17fb/0x4be0 [ 431.482608][ T30] ? do_raw_spin_lock+0x14f/0x370 [ 431.487873][ T30] ? __pfx___schedule+0x10/0x10 [ 431.492791][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 431.498997][ T30] ? __pfx_lock_release+0x10/0x10 [ 431.504089][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 431.509821][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 431.515171][ T30] ? schedule+0x90/0x320 [ 431.519673][ T30] schedule+0x14b/0x320 [ 431.523891][ T30] __closure_sync+0x259/0x2f0 [ 431.528765][ T30] ? __closure_sync+0x149/0x2f0 [ 431.533715][ T30] ? __pfx___closure_sync+0x10/0x10 [ 431.539916][ T30] ? closure_wait+0xa4/0xf0 [pid 11526] close(4) = 0 [ 431.564723][T11521] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 431.575796][ T30] bch2_journal_res_get_slowpath+0x55a/0x710 [ 431.584237][ T30] ? __pfx_bch2_journal_res_get_slowpath+0x10/0x10 [ 431.590036][T11521] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 431.591462][T11523] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 431.600825][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [pid 11526] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11483] <... futex resumed>) = 0 [pid 11526] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11483] exit_group(0 [pid 11526] <... futex resumed>) = ? [pid 11483] <... exit_group resumed>) = ? [pid 11526] +++ exited with 0 +++ [pid 11485] <... futex resumed>) = ? [ 431.617232][T11487] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 431.626568][T11523] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 431.629191][ T30] ? bch2_trans_unlock+0x346/0x470 [ 431.635645][T11487] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 431.642767][ T30] ? run_btree_triggers+0x1263/0x1270 [ 431.655565][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [ 431.674973][ T30] ? bch2_trans_unlock+0x3a6/0x470 [ 431.682006][ T30] bch2_trans_commit_error+0xd94/0x1380 [ 431.688150][ T30] ? six_unlock_ip+0x2ce/0x3e0 [ 431.694544][ T30] ? bch2_trans_unlock_write+0x892/0xce0 [ 431.701153][ T30] ? __pfx_bch2_trans_commit_error+0x10/0x10 [ 431.732217][ T30] ? bch2_trans_unlock_write+0xc2d/0xce0 [ 431.738140][ T30] ? bch2_btree_path_verify_locks+0x633/0x720 [ 431.746314][ T30] ? bch2_trans_verify_locks+0x339/0x3c0 [ 431.752048][ T30] __bch2_trans_commit+0x7ead/0x93c0 [ 431.760060][ T30] ? bch2_path_put+0x1a4/0x2150 [ 431.765010][ T30] ? __pfx___bch2_trans_commit+0x10/0x10 [ 431.772786][ T30] ? __asan_memcpy+0x40/0x70 [ 431.777456][ T30] ? __asan_memset+0x23/0x50 [ 431.784299][ T30] bch2_do_discards_fast_work+0xa87/0x1290 [ 431.790304][ T30] ? mark_lock+0x9a/0x360 [ 431.796648][ T30] ? __pfx_bch2_do_discards_fast_work+0x10/0x10 [ 431.803036][ T30] ? bch2_do_discards_fast_work+0x552/0x1290 [ 431.811109][ T30] ? process_scheduled_works+0x976/0x1840 [ 431.816939][ T30] process_scheduled_works+0xa66/0x1840 [ 431.827749][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 431.845440][ T30] ? assign_work+0x364/0x3d0 [ 431.850256][ T30] worker_thread+0x870/0xd30 [ 431.855087][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 431.861324][ T30] ? __kthread_parkme+0x169/0x1d0 [ 431.866417][ T30] ? __pfx_worker_thread+0x10/0x10 [ 431.875492][ T30] kthread+0x2f0/0x390 [ 431.879861][ T30] ? __pfx_worker_thread+0x10/0x10 [ 431.885513][ T30] ? __pfx_kthread+0x10/0x10 [ 431.890703][ T30] ret_from_fork+0x4b/0x80 [pid 11485] +++ exited with 0 +++ [pid 11483] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11483, si_uid=0, si_status=0, si_utime=18 /* 0.18 s */, si_stime=112 /* 1.12 s */} --- [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] ioctl(3, LOOP_CLR_FD) = 0 [pid 5845] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555693e0750) = 11549 ./strace-static-x86_64: Process 11549 attached [pid 11549] set_robust_list(0x5555693e0760, 24) = 0 [ 431.895221][ T30] ? __pfx_kthread+0x10/0x10 [ 431.900287][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.905106][ T30] [ 431.908596][ T30] INFO: task bch-reclaim/loo:5867 blocked for more than 145 seconds. [ 431.924266][ T30] Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 431.932431][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [pid 11549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 11549] setpgid(0, 0) = 0 [pid 11549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 11549] write(3, "1000", 4) = 4 [pid 11549] close(3) = 0 [pid 11549] write(1, "executing program\n", 18executing program ) = 18 [pid 11549] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11549] rt_sigaction(SIGRT_1, {sa_handler=0x7ff7dbd01e80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff7dbcabb30}, NULL, 8) = 0 [pid 11549] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 11549] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc72000 [pid 11549] mprotect(0x7ff7dbc73000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11549] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 11549] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc92990, parent_tid=0x7ff7dbc92990, exit_signal=0, stack=0x7ff7dbc72000, stack_size=0x20240, tls=0x7ff7dbc926c0} => {parent_tid=[11556]}, 88) = 11556 [ 431.943022][ T30] task:bch-reclaim/loo state:D stack:14960 pid:5867 tgid:5867 ppid:2 flags:0x00004000 [ 431.956353][ T30] Call Trace: [ 431.960001][ T30] [ 431.963004][ T30] __schedule+0x17fb/0x4be0 [ 431.969849][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 431.977357][ T30] ? __pfx___schedule+0x10/0x10 [ 431.982483][ T30] ? __pfx_lock_release+0x10/0x10 [ 431.988565][ T30] ? bch2_print_allocator_stuck+0x165/0xcb0 [pid 11549] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11549] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11549] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 11556 attached [pid 11556] rseq(0x7ff7dbc92fe0, 0x20, 0, 0x53053053) = 0 [pid 11556] set_robust_list(0x7ff7dbc929a0, 24) = 0 [ 431.994984][ T30] ? bch2_print_allocator_stuck+0xc24/0xcb0 [ 432.002058][ T30] ? schedule+0x90/0x320 [ 432.006626][ T30] schedule+0x14b/0x320 [ 432.011349][ T30] __closure_sync+0x259/0x2f0 [ 432.012102][T11525] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 432.016270][ T30] ? __closure_sync+0x149/0x2f0 [ 432.027826][T11525] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 432.030625][ T30] ? __pfx___closure_sync+0x10/0x10 [pid 11556] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 11556] memfd_create("syzkaller", 0) = 3 [pid 11556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff7d3800000 [ 432.043721][ T30] ? __bch2_wait_on_allocator+0x1d6/0x250 [ 432.049630][ T30] bch2_btree_update_start+0x11a2/0x14e0 [ 432.055512][ T30] ? bch2_btree_split_leaf+0x123/0x840 [ 432.061287][ T30] ? __pfx_bch2_btree_update_start+0x10/0x10 [ 432.067338][ T30] ? bch2_btree_write_buffer_flush_locked+0x4f04/0x5a00 [ 432.074739][ T30] ? __pfx_closure_sync_fn+0x10/0x10 [ 432.080525][ T30] ? __do_six_trylock+0x832/0x9f0 [ 432.085628][ T30] bch2_btree_split_leaf+0x123/0x840 [ 432.091064][ T30] bch2_trans_commit_error+0x212/0x1380 [ 432.096665][ T30] ? bch2_btree_write_buffer_flush_locked+0x4f4e/0x5a00 [ 432.104005][ T30] ? six_unlock_ip+0x2ce/0x3e0 [ 432.109284][ T30] ? bch2_trans_unlock_write+0x892/0xce0 [ 432.115016][ T30] ? __pfx_bch2_trans_commit_error+0x10/0x10 [ 432.121138][ T30] ? bch2_trans_unlock_write+0xc2d/0xce0 [ 432.126837][ T30] ? bch2_btree_path_verify_locks+0x633/0x720 [ 432.133063][ T30] ? bch2_trans_verify_locks+0x339/0x3c0 [ 432.138798][ T30] __bch2_trans_commit+0x7ead/0x93c0 [ 432.144182][ T30] ? bch2_path_put+0x1a4/0x2150 [ 432.149273][ T30] ? __pfx___bch2_trans_commit+0x10/0x10 [ 432.154964][ T30] ? __asan_memset+0x23/0x50 [ 432.159652][ T30] bch2_btree_write_buffer_flush_locked+0x4f4e/0x5a00 [ 432.166514][ T30] ? __pfx_bch2_btree_write_buffer_flush_locked+0x10/0x10 [ 432.173745][ T30] ? __pfx___mutex_trylock_common+0x10/0x10 [ 432.180221][ T30] ? bch2_btree_write_buffer_flush_locked+0x4e6a/0x5a00 [ 432.187222][ T30] ? __mutex_lock+0x37f/0xee0 [ 432.194162][ T30] ? __bch2_next_write_buffer_flush_journal_buf+0x287/0x2a0 [ 432.201603][ T30] ? bch2_btree_write_buffer_flush_locked+0x1552/0x5a00 [ 432.208650][ T30] ? __pfx_bch2_next_write_buffer_flush_journal_buf+0x10/0x10 [ 432.216176][ T30] ? bch2_trans_unlock+0x3a6/0x470 [ 432.221704][ T30] btree_write_buffer_flush_seq+0x1b23/0x1cc0 [ 432.228152][ T30] ? __asan_memset+0x23/0x50 [ 432.232798][ T30] ? lockdep_init_map_type+0xa1/0x910 [ 432.238281][ T30] ? __pfx_btree_write_buffer_flush_seq+0x10/0x10 [ 432.244761][ T30] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 432.250686][ T30] ? __pfx_bch2_btree_write_buffer_journal_flush+0x10/0x10 [ 432.258037][ T30] bch2_btree_write_buffer_journal_flush+0xc7/0x150 [ 432.264684][ T30] ? __pfx_bch2_btree_write_buffer_journal_flush+0x10/0x10 [ 432.272012][ T30] ? do_raw_spin_unlock+0x121/0x8b0 [ 432.277270][ T30] ? __pfx_bch2_btree_write_buffer_journal_flush+0x10/0x10 [ 432.284564][ T30] journal_flush_pins+0x5f7/0xb20 [ 432.289711][ T30] __bch2_journal_reclaim+0x789/0xda0 [ 432.295167][ T30] bch2_journal_reclaim_thread+0x174/0x560 [ 432.301229][ T30] ? bch2_journal_reclaim_thread+0x249/0x560 [ 432.307281][ T30] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 432.313721][ T30] kthread+0x2f0/0x390 [ 432.317875][ T30] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 432.324255][ T30] ? __pfx_kthread+0x10/0x10 [ 432.328976][ T30] ret_from_fork+0x4b/0x80 [ 432.333770][ T30] ? __pfx_kthread+0x10/0x10 [ 432.338751][ T30] ret_from_fork_asm+0x1a/0x30 [ 432.343853][ T30] [ 432.347052][ T30] [ 432.347052][ T30] Showing all locks held in the system: [ 432.356585][ T30] 3 locks held by kworker/u8:0/11: [ 432.361795][ T30] #0: ffff888028e09948 ((wq_completion)btree_update){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 [ 432.377932][ T30] #1: ffffc90000107d00 ((work_completion)(&c->btree_interior_update_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 [ 432.391767][ T30] #2: ffff888078384398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 [ 432.393211][T11521] bcachefs: bch2_fs_get_tree() error: EINVAL [ 432.402413][ T30] 3 locks held by kworker/1:0/25: [ 432.402434][ T30] #0: ffff8880323cb148 ((wq_completion)bcachefs_write_ref){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 [ 432.426471][ T30] #1: ffffc900001f7d00 ((work_completion)(&ca->discard_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 [pid 11556] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 11521] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 11521] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 11521] ioctl(3, LOOP_CLR_FD) = 0 [ 432.438976][ T30] #2: ffff888078384398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 [ 432.452416][ T30] 1 lock held by khungtaskd/30: [ 432.457696][ T30] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 432.468294][ T30] 3 locks held by kworker/1:2/910: [ 432.473677][ T30] #0: ffff8880323cb148 ((wq_completion)bcachefs_write_ref){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 [ 432.486473][ T30] #1: ffffc90003ab7d00 ((work_completion)(&ca->discard_fast_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 [ 432.499695][ T30] #2: ffff888078384398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 [pid 11521] close(3 [pid 11556] <... write resumed>) = 16777216 [ 432.548919][ T30] 2 locks held by kworker/u8:10/3511: [ 432.554438][ T30] #0: ffff8880b873e758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [pid 11556] munmap(0x7ff7d3800000, 138412032) = 0 [pid 11556] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 11556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11556] ioctl(4, LOOP_CLR_FD) = 0 [pid 11556] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 11556] close(4) = 0 [ 432.592990][ T30] #1: ffffc9000ce07d00 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 [ 432.604397][ T30] 2 locks held by getty/5581: [ 432.609607][ T30] #0: ffff8880358980a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [pid 11556] close(3 [pid 11521] <... close resumed>) = 0 [pid 11521] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 432.638742][ T30] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 [ 432.655475][ T30] 4 locks held by bch-reclaim/loo/5867: [ 432.661216][ T30] #0: ffff8880783cb0a8 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x167/0x560 [ 432.672357][ T30] #1: ffff888078384740 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x1b19/0x1cc0 [pid 11521] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11520] <... futex resumed>) = 0 [pid 11520] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 11521] <... futex resumed>) = 0 [pid 11520] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 432.684199][ T30] #2: ffff888078384398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_trans_srcu_lock+0x9a/0x1a0 [ 432.695863][ T30] #3: ffff8880783a66d0 (&c->gc_lock){.+.+}-{4:4}, at: bch2_btree_update_start+0x682/0x14e0 [ 432.707326][ T30] 1 lock held by syz-executor309/11487: [ 432.713047][ T30] #0: ffffffff8e93cec0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 [ 432.723302][ T30] 3 locks held by syz-executor309/11521: [ 432.729256][ T30] 1 lock held by syz-executor309/11523: [pid 11521] creat("./bus", 000 [pid 11520] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 11520] futex(0x7ff7dbd6e61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 11520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff7dbc51000 [pid 11520] mprotect(0x7ff7dbc52000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 11520] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 432.734848][ T30] #0: ffffffff8e93cec0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 [ 432.759084][ T30] 1 lock held by syz-executor309/11525: [ 432.765478][ T30] #0: ffffffff8e93cec0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 [ 432.787816][ T30] [pid 11520] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff7dbc71990, parent_tid=0x7ff7dbc71990, exit_signal=0, stack=0x7ff7dbc51000, stack_size=0x20240, tls=0x7ff7dbc716c0}./strace-static-x86_64: Process 11557 attached [pid 11556] <... close resumed>) = 0 [pid 11520] <... clone3 resumed> => {parent_tid=[11557]}, 88) = 11557 [pid 11557] rseq(0x7ff7dbc71fe0, 0x20, 0, 0x53053053) = 0 [pid 11557] set_robust_list(0x7ff7dbc719a0, 24) = 0 [pid 11557] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 432.790227][ T30] ============================================= [ 432.790227][ T30] [ 432.805572][ T30] NMI backtrace for cpu 1 [ 432.809991][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 432.820537][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 432.830755][ T30] Call Trace: [ 432.834085][ T30] [ 432.837054][ T30] dump_stack_lvl+0x241/0x360 [ 432.841789][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 432.847034][ T30] ? __pfx__printk+0x10/0x10 [ 432.851681][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 432.856673][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 432.862176][ T30] ? _printk+0xd5/0x120 [ 432.866379][ T30] ? __pfx__printk+0x10/0x10 [ 432.871097][ T30] ? __wake_up_klogd+0xcc/0x110 [ 432.876004][ T30] ? __pfx__printk+0x10/0x10 [ 432.880634][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 432.885700][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [pid 11557] futex(0x7ff7dbd6e618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11521] <... creat resumed>) = 3 [pid 11556] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11520] rt_sigprocmask(SIG_SETMASK, [], [pid 11556] <... futex resumed>) = 1 [pid 11549] <... futex resumed>) = 0 [pid 11521] futex(0x7ff7dbd6e60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 11520] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 11556] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11549] futex(0x7ff7dbd6e608, FUTEX_WAKE_PRIVATE, 1000000 [pid 11521] <... futex resumed>) = 0 [pid 11520] futex(0x7ff7dbd6e618, FUTEX_WAKE_PRIVATE, 1000000 [pid 11557] <... futex resumed>) = 0 [pid 11556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 11549] <... futex resumed>) = 0 [pid 11521] futex(0x7ff7dbd6e608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 11520] <... futex resumed>) = 1 [pid 11557] write(3, "\x74\x68\x72\x65\x61\x64\x65\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 392007683 [pid 11556] creat("./bus", 000 [pid 11549] futex(0x7ff7dbd6e60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 432.891732][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 432.897761][ T30] watchdog+0xff6/0x1040 [ 432.902035][ T30] ? watchdog+0x1ea/0x1040 [ 432.906473][ T30] ? __pfx_watchdog+0x10/0x10 [ 432.911167][ T30] kthread+0x2f0/0x390 [ 432.915267][ T30] ? __pfx_watchdog+0x10/0x10 [ 432.919998][ T30] ? __pfx_kthread+0x10/0x10 [ 432.924638][ T30] ret_from_fork+0x4b/0x80 [ 432.929271][ T30] ? __pfx_kthread+0x10/0x10 [ 432.933928][ T30] ret_from_fork_asm+0x1a/0x30 [ 432.938759][ T30] [ 432.942065][ T30] Sending NMI from CPU 1 to CPUs 0: [ 432.948417][ C0] NMI backtrace for cpu 0 [ 432.948436][ C0] CPU: 0 UID: 0 PID: 11557 Comm: syz-executor309 Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 432.948458][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 432.948473][ C0] RIP: 0010:__rcu_read_unlock+0x84/0x110 [ 432.948499][ C0] Code: c1 e8 03 42 0f b6 04 20 84 c0 0f 85 88 00 00 00 41 83 3f 00 75 29 42 0f b6 04 23 84 c0 75 62 41 8b 45 00 3d 00 00 00 40 73 0f <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 0f 0b 90 eb eb 4c [ 432.948515][ C0] RSP: 0018:ffffc90003e0f7c8 EFLAGS: 00000087 [ 432.948532][ C0] RAX: 0000000000000000 RBX: 1ffff1100516a808 RCX: ffffc90003e0f603 [ 432.948545][ C0] RDX: 0000000000000004 RSI: ffffffff8c0aaae0 RDI: ffffffff8c5edd60 [ 432.948558][ C0] RBP: 0000000000000000 R08: ffffffff901853f7 R09: 1ffffffff2030a7e [ 432.948571][ C0] R10: dffffc0000000000 R11: fffffbfff2030a7f R12: dffffc0000000000 [ 432.948585][ C0] R13: ffff888028b54044 R14: ffff888028b53c00 R15: ffff888028b54048 [ 432.948599][ C0] FS: 00007ff7dbc716c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 432.948615][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 432.948628][ C0] CR2: 0000000020102000 CR3: 0000000032862000 CR4: 00000000003526f0 [ 432.948644][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 432.948656][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 432.948667][ C0] Call Trace: [ 432.948673][ C0] [ 432.948680][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 432.948703][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 432.948723][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 432.948744][ C0] ? nmi_handle+0x2a/0x5a0 [ 432.948771][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 432.948798][ C0] ? nmi_handle+0x14f/0x5a0 [ 432.948816][ C0] ? nmi_handle+0x2a/0x5a0 [ 432.948837][ C0] ? __rcu_read_unlock+0x84/0x110 [ 432.948855][ C0] ? default_do_nmi+0x63/0x160 [ 432.948875][ C0] ? exc_nmi+0x123/0x1f0 [ 432.948895][ C0] ? end_repeat_nmi+0xf/0x53 [ 432.948917][ C0] ? __rcu_read_unlock+0x84/0x110 [ 432.948936][ C0] ? __rcu_read_unlock+0x84/0x110 [ 432.948954][ C0] ? __rcu_read_unlock+0x84/0x110 [ 432.948973][ C0] [ 432.948979][ C0] [ 432.948987][ C0] __folio_mark_dirty+0x476/0xe80 [ 432.949013][ C0] mark_buffer_dirty+0x28e/0x440 [ 432.949040][ C0] __block_commit_write+0x149/0x290 [ 432.949061][ C0] block_write_end+0x6e/0xb0 [ 432.949078][ C0] ext4_da_write_end+0x356/0xcd0 [ 432.949104][ C0] ? __pfx_ext4_da_write_end+0x10/0x10 [ 432.949125][ C0] generic_perform_write+0x6f6/0x990 [ 432.949157][ C0] ? __pfx_generic_perform_write+0x10/0x10 [ 432.949180][ C0] ? ext4_write_checks+0x255/0x2c0 [ 432.949208][ C0] ext4_buffered_write_iter+0xc5/0x350 [ 432.949236][ C0] ext4_file_write_iter+0x892/0x1c50 [ 432.949265][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 432.949289][ C0] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 432.949322][ C0] vfs_write+0xaeb/0xd30 [ 432.949346][ C0] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 432.949372][ C0] ? __pfx_vfs_write+0x10/0x10 [ 432.949395][ C0] ? __fget_files+0x2a/0x410 [ 432.949414][ C0] ? __fget_files+0x2a/0x410 [ 432.949435][ C0] ksys_write+0x18f/0x2b0 [ 432.949457][ C0] ? __pfx_ksys_write+0x10/0x10 [ 432.949479][ C0] ? do_syscall_64+0x100/0x230 [ 432.949508][ C0] do_syscall_64+0xf3/0x230 [ 432.949534][ C0] ? clear_bhb_loop+0x35/0x90 [ 432.949551][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 432.949576][ C0] RIP: 0033:0x7ff7dbcdc1b9 [ 432.949599][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 432.949614][ C0] RSP: 002b:00007ff7dbc71168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 432.949636][ C0] RAX: ffffffffffffffda RBX: 00007ff7dbd6e618 RCX: 00007ff7dbcdc1b9 [ 432.949649][ C0] RDX: 00000000175d9003 RSI: 0000000020000200 RDI: 0000000000000003 [ 432.949661][ C0] RBP: 00007ff7dbd6e610 R08: 00007ff7dbc716c0 R09: 0000000000000000 [ 432.949673][ C0] R10: 00007ffc2e4dc687 R11: 0000000000000246 R12: 00007ff7dbd6e61c [ 432.949685][ C0] R13: 000000000000006e R14: 00007ffc2e4dc5a0 R15: 00007ffc2e4dc688 [ 432.949706][ C0] [ 432.949714][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.298 msecs [ 432.960449][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 432.960470][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 432.960497][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 432.960512][ T30] Call Trace: [ 432.960522][ T30] [ 432.960533][ T30] dump_stack_lvl+0x241/0x360 [ 432.960573][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 432.960605][ T30] ? __pfx__printk+0x10/0x10 [ 432.960632][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 432.960665][ T30] ? vscnprintf+0x5d/0x90 [ 432.960695][ T30] panic+0x349/0x880 [ 432.960724][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 432.960754][ T30] ? __pfx_panic+0x10/0x10 [ 432.960786][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 432.960812][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 432.960839][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 432.960870][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 432.960909][ T30] watchdog+0x1035/0x1040 [ 432.960936][ T30] ? watchdog+0x1ea/0x1040 [ 432.960967][ T30] ? __pfx_watchdog+0x10/0x10 [ 432.960991][ T30] kthread+0x2f0/0x390 [ 432.961018][ T30] ? __pfx_watchdog+0x10/0x10 [ 432.961042][ T30] ? __pfx_kthread+0x10/0x10 [ 432.961070][ T30] ret_from_fork+0x4b/0x80 [ 432.961091][ T30] ? __pfx_kthread+0x10/0x10 [ 432.961118][ T30] ret_from_fork_asm+0x1a/0x30 [ 432.961164][ T30] [ 433.519780][ T30] Kernel Offset: disabled [ 433.524117][ T30] Rebooting in 86400 seconds..