./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3200741323 <...> Warning: Permanently added '10.128.0.31' (ED25519) to the list of known hosts. execve("./syz-executor3200741323", ["./syz-executor3200741323"], 0x7ffd7f38ba40 /* 10 vars */) = 0 brk(NULL) = 0x55556d0bc000 brk(0x55556d0bcd40) = 0x55556d0bcd40 arch_prctl(ARCH_SET_FS, 0x55556d0bc3c0) = 0 set_tid_address(0x55556d0bc690) = 5220 set_robust_list(0x55556d0bc6a0, 24) = 0 rseq(0x55556d0bcce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3200741323", 4096) = 28 getrandom("\xb7\x84\x9b\xf6\x58\x27\x59\xaa", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d0bcd40 brk(0x55556d0ddd40) = 0x55556d0ddd40 brk(0x55556d0de000) = 0x55556d0de000 mprotect(0x7f6abae2a000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5221 attached , child_tidptr=0x55556d0bc690) = 5221 [pid 5220] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC [pid 5221] set_robust_list(0x55556d0bc6a0, 24) = 0 [pid 5220] <... openat resumed>) = 3 [pid 5220] write(3, "10000000000", 11) = 11 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "20", 2) = 2 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "0", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "0", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "100", 3) = 3 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "0", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "0", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "7 4 1 3", 7) = 7 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "0", 1) = 1 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "5221", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] kill(5221, SIGKILL) = 0 [pid 5221] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5221, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5222 attached , child_tidptr=0x55556d0bc690) = 5222 [pid 5222] set_robust_list(0x55556d0bc6a0, 24) = 0 [pid 5220] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5223 attached ) = 3 [pid 5222] ioctl(3, LOOP_CLR_FD [pid 5220] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5223 [pid 5223] set_robust_list(0x55556d0bc6a0, 24 [pid 5220] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5223] <... set_robust_list resumed>) = 0 [pid 5222] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5224 attached [pid 5224] set_robust_list(0x55556d0bc6a0, 24 [pid 5223] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5222] close(3 [pid 5224] <... set_robust_list resumed>) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5220] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5224 [pid 5220] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5222] <... close resumed>) = 0 ./strace-static-x86_64: Process 5225 attached [pid 5224] <... openat resumed>) = 3 [pid 5223] <... openat resumed>) = 3 [pid 5224] ioctl(3, LOOP_CLR_FD [pid 5225] set_robust_list(0x55556d0bc6a0, 24 [pid 5223] ioctl(3, LOOP_CLR_FD [pid 5222] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5224] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5220] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5225 [pid 5220] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached [pid 5227] set_robust_list(0x55556d0bc6a0, 24) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5228 attached [pid 5220] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5227 [pid 5225] <... set_robust_list resumed>) = 0 [pid 5224] close(3 [pid 5223] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5224] <... close resumed>) = 0 [pid 5223] close(3 [pid 5222] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5228 [pid 5224] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5223] <... close resumed>) = 0 [pid 5225] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5229 attached ) = 3 [pid 5223] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5229] set_robust_list(0x55556d0bc6a0, 24./strace-static-x86_64: Process 5230 attached ) = 0 [pid 5228] set_robust_list(0x55556d0bc6a0, 24 [pid 5227] <... openat resumed>) = 3 [pid 5225] ioctl(3, LOOP_CLR_FD [pid 5224] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5229 [pid 5230] set_robust_list(0x55556d0bc6a0, 24 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5228] <... set_robust_list resumed>) = 0 [pid 5227] ioctl(3, LOOP_CLR_FD [pid 5225] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5230] <... set_robust_list resumed>) = 0 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5227] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5229] <... prctl resumed>) = 0 [pid 5228] <... prctl resumed>) = 0 [pid 5227] close(3 [pid 5225] close(3 [pid 5223] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5230 [pid 5230] <... prctl resumed>) = 0 [pid 5229] setpgid(0, 0 [pid 5228] setpgid(0, 0 [pid 5227] <... close resumed>) = 0 [pid 5225] <... close resumed>) = 0 [pid 5230] setpgid(0, 0 [pid 5229] <... setpgid resumed>) = 0 [pid 5228] <... setpgid resumed>) = 0 [pid 5227] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5225] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5231 attached [pid 5230] <... setpgid resumed>) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5229] <... openat resumed>) = 3 [pid 5228] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5232 attached [pid 5231] set_robust_list(0x55556d0bc6a0, 24 [pid 5230] <... openat resumed>) = 3 [pid 5229] write(3, "1000", 4 [pid 5228] write(3, "1000", 4 [pid 5231] <... set_robust_list resumed>) = 0 [pid 5228] <... write resumed>) = 4 [pid 5227] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5231 executing program [pid 5232] set_robust_list(0x55556d0bc6a0, 24 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5229] <... write resumed>) = 4 [pid 5228] close(3 [pid 5229] close(3 [pid 5232] <... set_robust_list resumed>) = 0 [pid 5228] <... close resumed>) = 0 [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] write(3, "1000", 4 [pid 5228] write(1, "executing program\n", 18 [pid 5225] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5232 [pid 5230] <... write resumed>) = 4 [pid 5229] <... close resumed>) = 0 [pid 5228] <... write resumed>) = 18 [pid 5232] <... prctl resumed>) = 0 [pid 5230] close(3 [pid 5228] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... prctl resumed>) = 0 [pid 5232] setpgid(0, 0 [pid 5230] <... close resumed>) = 0 executing program [pid 5229] write(1, "executing program\n", 18 [pid 5228] <... futex resumed>) = 0 [pid 5232] <... setpgid resumed>) = 0 executing program [pid 5231] setpgid(0, 0 [pid 5230] write(1, "executing program\n", 18 [pid 5229] <... write resumed>) = 18 [pid 5228] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5231] <... setpgid resumed>) = 0 [pid 5230] <... write resumed>) = 18 [pid 5229] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... futex resumed>) = 0 [pid 5228] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5232] write(3, "1000", 4 [pid 5230] <... futex resumed>) = 0 [pid 5229] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, [pid 5228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5232] <... write resumed>) = 4 [pid 5231] <... openat resumed>) = 3 [pid 5230] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, [pid 5229] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5232] close(3 [pid 5230] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5229] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5228] <... mmap resumed>) = 0x7f6abad3b000 [pid 5232] <... close resumed>) = 0 [pid 5232] write(1, "executing program\n", 18executing program [pid 5230] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5228] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5232] <... write resumed>) = 18 [pid 5231] write(3, "1000", 4 [pid 5230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5228] <... mprotect resumed>) = 0 [pid 5232] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... write resumed>) = 4 [pid 5230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5232] <... futex resumed>) = 0 [pid 5230] <... mmap resumed>) = 0x7f6abad3b000 [pid 5228] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5232] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, NULL, 8) = 0 [pid 5230] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5230] <... mprotect resumed>) = 0 executing program [pid 5228] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5231] close(3 [pid 5230] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5229] <... mmap resumed>) = 0x7f6abad3b000 [pid 5228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0} [pid 5231] <... close resumed>) = 0 [pid 5229] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5231] write(1, "executing program\n", 18./strace-static-x86_64: Process 5233 attached [pid 5232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5231] <... write resumed>) = 18 [pid 5230] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5229] <... mprotect resumed>) = 0 [pid 5233] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053 [pid 5232] <... mmap resumed>) = 0x7f6abad3b000 [pid 5231] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0} [pid 5229] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 5234 attached [pid 5233] <... rseq resumed>) = 0 [pid 5232] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5231] <... futex resumed>) = 0 [pid 5229] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5228] <... clone3 resumed> => {parent_tid=[5233]}, 88) = 5233 [pid 5233] set_robust_list(0x7f6abad5b9a0, 24 [pid 5232] <... mprotect resumed>) = 0 [pid 5231] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, [pid 5230] <... clone3 resumed> => {parent_tid=[5234]}, 88) = 5234 [pid 5229] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0} [pid 5234] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053 [pid 5233] <... set_robust_list resumed>) = 0 [pid 5232] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5230] rt_sigprocmask(SIG_SETMASK, [], [pid 5228] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5235 attached [pid 5234] <... rseq resumed>) = 0 [pid 5233] rt_sigprocmask(SIG_SETMASK, [], [pid 5231] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5235] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053 [pid 5234] set_robust_list(0x7f6abad5b9a0, 24 [pid 5233] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5232] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5231] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5230] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... clone3 resumed> => {parent_tid=[5235]}, 88) = 5235 [pid 5228] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... rseq resumed>) = 0 [pid 5234] <... set_robust_list resumed>) = 0 [pid 5233] memfd_create("syzkaller", 0 [pid 5232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0} [pid 5231] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5230] <... futex resumed>) = 0 [pid 5229] rt_sigprocmask(SIG_SETMASK, [], [pid 5228] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5236 attached [pid 5235] set_robust_list(0x7f6abad5b9a0, 24 [pid 5234] rt_sigprocmask(SIG_SETMASK, [], [pid 5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5235] <... set_robust_list resumed>) = 0 [pid 5234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5235] rt_sigprocmask(SIG_SETMASK, [], [pid 5231] <... mmap resumed>) = 0x7f6abad3b000 [pid 5229] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053 [pid 5235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5234] memfd_create("syzkaller", 0 [pid 5233] <... memfd_create resumed>) = 3 [pid 5231] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5230] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5229] <... futex resumed>) = 0 [pid 5228] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5236] <... rseq resumed>) = 0 [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5232] <... clone3 resumed> => {parent_tid=[5236]}, 88) = 5236 [pid 5231] <... mprotect resumed>) = 0 [pid 5236] set_robust_list(0x7f6abad5b9a0, 24 [pid 5235] memfd_create("syzkaller", 0 [pid 5234] <... memfd_create resumed>) = 3 [pid 5233] <... mmap resumed>) = 0x7f6ab2800000 [pid 5232] rt_sigprocmask(SIG_SETMASK, [], [pid 5229] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5236] <... set_robust_list resumed>) = 0 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5231] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5236] rt_sigprocmask(SIG_SETMASK, [], [pid 5235] <... memfd_create resumed>) = 3 [pid 5236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5234] <... mmap resumed>) = 0x7f6ab2800000 [pid 5232] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5232] <... futex resumed>) = 0 [pid 5236] memfd_create("syzkaller", 0 [pid 5235] <... mmap resumed>) = 0x7f6ab2800000 [pid 5232] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5231] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5236] <... memfd_create resumed>) = 3 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6ab2800000 [pid 5231] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0}./strace-static-x86_64: Process 5237 attached [pid 5237] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053) = 0 [pid 5231] <... clone3 resumed> => {parent_tid=[5237]}, 88) = 5237 [pid 5237] set_robust_list(0x7f6abad5b9a0, 24 [pid 5231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5231] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5237] memfd_create("syzkaller", 0) = 3 [pid 5231] <... futex resumed>) = 0 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5231] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5237] <... mmap resumed>) = 0x7f6ab2800000 [pid 5233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5234] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5234] <... write resumed>) = 16777216 [pid 5234] munmap(0x7f6ab2800000, 138412032) = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5234] ioctl(4, LOOP_SET_FD, 3 [pid 5235] <... write resumed>) = 16777216 [pid 5234] <... ioctl resumed>) = 0 [pid 5234] close(3) = 0 [pid 5234] close(4) = 0 [pid 5234] mkdir("./bus", 0777) = 0 [pid 5233] <... write resumed>) = 16777216 [pid 5237] <... write resumed>) = 16777216 [pid 5235] munmap(0x7f6ab2800000, 138412032 [pid 5234] mount("/dev/loop1", "./bus", "btrfs", MS_NOEXEC, "autodefrag,autodefrag,ref_verify,acl,clear_cache,discard,noenospc_debug,barrier,nodatacow," [ 68.545930][ T5234] loop1: detected capacity change from 0 to 32768 [pid 5237] munmap(0x7f6ab2800000, 138412032 [pid 5235] <... munmap resumed>) = 0 [pid 5233] munmap(0x7f6ab2800000, 138412032 [pid 5237] <... munmap resumed>) = 0 [pid 5236] <... write resumed>) = 16777216 [pid 5235] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5233] <... munmap resumed>) = 0 [pid 5237] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5236] munmap(0x7f6ab2800000, 138412032 [pid 5237] <... openat resumed>) = 4 [pid 5235] <... openat resumed>) = 4 [ 68.583942][ T5234] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 (7:1) scanned by syz-executor320 (5234) [pid 5237] ioctl(4, LOOP_SET_FD, 3 [pid 5235] ioctl(4, LOOP_SET_FD, 3 [pid 5233] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5236] <... munmap resumed>) = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5237] <... ioctl resumed>) = 0 [pid 5236] <... openat resumed>) = 4 [pid 5233] <... openat resumed>) = 4 [pid 5236] ioctl(4, LOOP_SET_FD, 3 [pid 5235] <... ioctl resumed>) = 0 [pid 5233] ioctl(4, LOOP_SET_FD, 3 [pid 5237] close(3) = 0 [pid 5237] close(4) = 0 [pid 5237] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 68.625057][ T5234] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 68.626422][ T5237] loop4: detected capacity change from 0 to 32768 [ 68.638672][ T5234] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 68.650699][ T5234] BTRFS info (device loop1): using free-space-tree [ 68.658104][ T5235] loop2: detected capacity change from 0 to 32768 [ 68.667753][ T5236] loop3: detected capacity change from 0 to 32768 [pid 5237] mount("/dev/loop4", "./bus", "btrfs", MS_NOEXEC, "autodefrag,autodefrag,ref_verify,acl,clear_cache,discard,noenospc_debug,barrier,nodatacow," [pid 5233] <... ioctl resumed>) = 0 [pid 5236] <... ioctl resumed>) = 0 [pid 5235] close(3) = 0 [pid 5236] close(3 [pid 5235] close(4) = 0 [pid 5235] mkdir("./bus", 0777 [pid 5236] <... close resumed>) = 0 [pid 5235] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5236] close(4 [pid 5235] mount("/dev/loop2", "./bus", "btrfs", MS_NOEXEC, "autodefrag,autodefrag,ref_verify,acl,clear_cache,discard,noenospc_debug,barrier,nodatacow," [pid 5233] close(3 [pid 5236] <... close resumed>) = 0 [pid 5236] mkdir("./bus", 0777 [pid 5233] <... close resumed>) = 0 [pid 5236] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5233] close(4 [pid 5236] mount("/dev/loop3", "./bus", "btrfs", MS_NOEXEC, "autodefrag,autodefrag,ref_verify,acl,clear_cache,discard,noenospc_debug,barrier,nodatacow," [pid 5233] <... close resumed>) = 0 [pid 5233] mkdir("./bus", 0777) = -1 EEXIST (File exists) [ 68.675136][ T5233] loop0: detected capacity change from 0 to 32768 [ 68.676750][ T5237] BTRFS: device /dev/loop4 (7:4) using temp-fsid b4e96628-a9a1-46f5-bb12-d68b210e6277 [ 68.714550][ T5237] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 (7:4) scanned by syz-executor320 (5237) [ 68.758380][ T5235] BTRFS: device /dev/loop2 (7:2) using temp-fsid f5b5b975-8575-4d39-be52-2c099d9e58a9 [ 68.785022][ T5237] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 68.807157][ T5235] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 (7:2) scanned by syz-executor320 (5235) [ 68.809558][ T5237] BTRFS info (device loop4): using sha256 (sha256-avx2) checksum algorithm [ 68.829302][ T5237] BTRFS info (device loop4): using free-space-tree [ 68.843734][ T5235] BTRFS info (device loop2): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 68.847795][ T5236] BTRFS: device /dev/loop3 (7:3) using temp-fsid e25e1965-0fc7-4b59-8d0b-567e9f96b8ef [ 68.866642][ T5235] BTRFS info (device loop2): using sha256 (sha256-avx2) checksum algorithm [ 68.914361][ T5235] BTRFS info (device loop2): using free-space-tree [ 68.917998][ T5236] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 (7:3) scanned by syz-executor320 (5236) [ 68.937313][ T5233] BTRFS: device /dev/loop0 (7:0) using temp-fsid f102b8c5-8faa-41e5-9b2c-b2e97b7a776b [ 68.947888][ T5233] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor320 (5233) [ 68.949821][ T5236] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 68.971436][ T5236] BTRFS info (device loop3): using sha256 (sha256-avx2) checksum algorithm [ 68.980191][ T5236] BTRFS info (device loop3): using free-space-tree [ 68.997792][ T5233] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 69.035222][ T5234] BTRFS info (device loop1): rebuilding free space tree [ 69.041285][ T5237] BTRFS info (device loop4): rebuilding free space tree [ 69.073199][ T5233] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [pid 5233] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "autodefrag,autodefrag,ref_verify,acl,clear_cache,discard,noenospc_debug,barrier,nodatacow," [pid 5237] <... mount resumed>) = 0 [pid 5237] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5234] <... mount resumed>) = 0 [pid 5237] chdir("./bus" [pid 5234] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5237] <... chdir resumed>) = 0 [pid 5234] <... openat resumed>) = 3 [pid 5237] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5234] chdir("./bus" [pid 5237] <... openat resumed>) = 4 [pid 5234] <... chdir resumed>) = 0 [ 69.124392][ T5233] BTRFS info (device loop0): using free-space-tree [pid 5234] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5237] ioctl(4, LOOP_CLR_FD [pid 5234] <... openat resumed>) = 4 [pid 5237] <... ioctl resumed>) = 0 [pid 5234] ioctl(4, LOOP_CLR_FD [pid 5237] close(4 [pid 5234] <... ioctl resumed>) = 0 [pid 5237] <... close resumed>) = 0 [pid 5234] close(4 [pid 5237] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... close resumed>) = 0 [pid 5237] <... futex resumed>) = 1 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 69.185826][ T5235] BTRFS info (device loop2): rebuilding free space tree [ 69.193831][ T5236] BTRFS info (device loop3): rebuilding free space tree [pid 5237] open("./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME, 000 [pid 5234] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5230] <... futex resumed>) = 0 [pid 5230] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] open("./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME, 000 [pid 5231] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5230] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5231] futex(0x7f6abae3061c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6abad1a000 [pid 5231] mprotect(0x7f6abad1b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5231] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5231] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad3a990, parent_tid=0x7f6abad3a990, exit_signal=0, stack=0x7f6abad1a000, stack_size=0x20300, tls=0x7f6abad3a6c0} => {parent_tid=[5321]}, 88) = 5321 [pid 5231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5231] futex(0x7f6abae30618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7f6abae3061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5321 attached [pid 5321] rseq(0x7f6abad3afe0, 0x20, 0, 0x53053053 [pid 5237] <... open resumed>) = 4 [pid 5234] <... open resumed>) = 4 [pid 5234] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5234] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] <... rseq resumed>) = 0 [pid 5237] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] set_robust_list(0x7f6abad3a9a0, 24) = 0 [pid 5237] <... futex resumed>) = 0 [pid 5321] rt_sigprocmask(SIG_SETMASK, [], [pid 5237] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5230] <... futex resumed>) = 0 [pid 5321] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5230] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5321] <... open resumed>) = 5 [pid 5234] <... futex resumed>) = 0 [pid 5230] <... futex resumed>) = 1 [pid 5234] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5234] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [ 69.224607][ T29] audit: type=1800 audit(1729218450.132:2): pid=5237 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor320" name="bus" dev="loop1" ino=263 res=0 errno=0 [pid 5230] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5230] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... futex resumed>) = 0 [pid 5230] <... futex resumed>) = 1 [pid 5234] 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"..., 4294966868 [pid 5321] futex(0x7f6abae3061c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5231] <... futex resumed>) = 0 [pid 5230] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5321] futex(0x7f6abae30618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5231] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5231] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5237] 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"..., 4294966868 [pid 5235] <... mount resumed>) = 0 [pid 5235] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5235] chdir("./bus") = 0 [pid 5235] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5235] ioctl(4, LOOP_CLR_FD) = 0 [pid 5235] close(4) = 0 [pid 5235] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5236] <... mount resumed>) = 0 [pid 5229] <... futex resumed>) = 0 [pid 5236] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5229] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5229] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5235] open("./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME, 000) = 4 [pid 5236] <... openat resumed>) = 3 [pid 5230] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5235] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] futex(0x7f6abae3061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... futex resumed>) = 1 [pid 5230] <... futex resumed>) = 0 [pid 5229] <... futex resumed>) = 0 [pid 5235] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5229] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... open resumed>) = 5 [pid 5230] <... mmap resumed>) = 0x7f6abad1a000 [pid 5229] <... futex resumed>) = 0 [pid 5236] chdir("./bus" [pid 5235] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 69.309148][ T29] audit: type=1800 audit(1729218450.202:3): pid=5234 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor320" name="bus" dev="loop1" ino=263 res=0 errno=0 [ 69.342874][ T5233] BTRFS info (device loop0): rebuilding free space tree [pid 5230] mprotect(0x7f6abad1b000, 131072, PROT_READ|PROT_WRITE [pid 5229] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... chdir resumed>) = 0 [pid 5235] <... futex resumed>) = 0 [pid 5231] futex(0x7f6abae30618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... mprotect resumed>) = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5235] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5321] <... futex resumed>) = 0 [pid 5236] <... openat resumed>) = 4 [pid 5231] <... futex resumed>) = 1 [pid 5230] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5321] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5236] ioctl(4, LOOP_CLR_FD [pid 5235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5231] futex(0x7f6abae3061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5229] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... ioctl resumed>) = 0 [pid 5235] 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"..., 4294966868 [pid 5230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad3a990, parent_tid=0x7f6abad3a990, exit_signal=0, stack=0x7f6abad1a000, stack_size=0x20300, tls=0x7f6abad3a6c0} [pid 5229] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5324 attached [pid 5236] close(4 [pid 5229] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... close resumed>) = 0 [pid 5230] <... clone3 resumed> => {parent_tid=[5324]}, 88) = 5324 [pid 5236] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] rseq(0x7f6abad3afe0, 0x20, 0, 0x53053053 [pid 5236] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5230] rt_sigprocmask(SIG_SETMASK, [], [pid 5232] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] <... rseq resumed>) = 0 [pid 5236] open("./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME, 000 [pid 5232] <... futex resumed>) = 0 [pid 5230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5232] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5324] set_robust_list(0x7f6abad3a9a0, 24 [pid 5236] <... open resumed>) = 4 [pid 5230] futex(0x7f6abae30618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] <... set_robust_list resumed>) = 0 [pid 5230] <... futex resumed>) = 0 [pid 5324] rt_sigprocmask(SIG_SETMASK, [], [pid 5236] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] futex(0x7f6abae3061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5324] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5236] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5232] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5236] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5232] <... futex resumed>) = 0 [pid 5232] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... open resumed>) = 5 [pid 5231] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5236] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] futex(0x7f6abae3062c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... futex resumed>) = 1 [pid 5232] <... futex resumed>) = 0 [pid 5231] <... futex resumed>) = 0 [ 69.344561][ T29] audit: type=1800 audit(1729218450.262:4): pid=5235 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor320" name="bus" dev="loop2" ino=263 res=0 errno=0 [pid 5236] 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"..., 4294966868 [pid 5232] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5232] <... futex resumed>) = 0 [pid 5231] <... mmap resumed>) = 0x7f6abacf9000 [pid 5229] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5232] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5231] mprotect(0x7f6abacfa000, 131072, PROT_READ|PROT_WRITE [pid 5229] futex(0x7f6abae3061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... mprotect resumed>) = 0 [pid 5229] <... futex resumed>) = 0 [pid 5231] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5231] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5231] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad19990, parent_tid=0x7f6abad19990, exit_signal=0, stack=0x7f6abacf9000, stack_size=0x20300, tls=0x7f6abad196c0} => {parent_tid=[5326]}, 88) = 5326 [pid 5231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5231] futex(0x7f6abae30628, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... mmap resumed>) = 0x7f6abad1a000 [pid 5231] <... futex resumed>) = 0 [pid 5230] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5231] futex(0x7f6abae3062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] futex(0x7f6abae3062c, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5326 attached [pid 5230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6abacf9000 [pid 5230] mprotect(0x7f6abacfa000, 131072, PROT_READ|PROT_WRITE [pid 5326] rseq(0x7f6abad19fe0, 0x20, 0, 0x53053053 [pid 5230] <... mprotect resumed>) = 0 [pid 5229] mprotect(0x7f6abad1b000, 131072, PROT_READ|PROT_WRITE [pid 5326] <... rseq resumed>) = 0 [pid 5230] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5229] <... mprotect resumed>) = 0 [pid 5326] set_robust_list(0x7f6abad199a0, 24 [pid 5230] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5229] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5326] <... set_robust_list resumed>) = 0 [pid 5230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad19990, parent_tid=0x7f6abad19990, exit_signal=0, stack=0x7f6abacf9000, stack_size=0x20300, tls=0x7f6abad196c0} [pid 5326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5230] <... clone3 resumed> => {parent_tid=[5327]}, 88) = 5327 [pid 5326] pwritev2(4, [{iov_base="\x85\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x72\x65\x66\x5f\x76\x65\x72\x69\x66\x79\x2c\x61\x63\x6c"..., iov_len=12288}], 1, 30720, RWF_HIPRI|RWF_DSYNC [pid 5230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5229] <... rt_sigprocmask resumed>[], 8) = 0 [ 69.427344][ T29] audit: type=1800 audit(1729218450.332:5): pid=5236 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor320" name="bus" dev="loop3" ino=263 res=0 errno=0 [pid 5230] futex(0x7f6abae30628, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5327 attached [pid 5232] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5230] <... futex resumed>) = 0 [pid 5229] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad3a990, parent_tid=0x7f6abad3a990, exit_signal=0, stack=0x7f6abad1a000, stack_size=0x20300, tls=0x7f6abad3a6c0} [pid 5230] futex(0x7f6abae3062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5328 attached [pid 5327] rseq(0x7f6abad19fe0, 0x20, 0, 0x53053053 [pid 5232] futex(0x7f6abae3061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5328] rseq(0x7f6abad3afe0, 0x20, 0, 0x53053053 [pid 5229] <... clone3 resumed> => {parent_tid=[5328]}, 88) = 5328 [pid 5232] <... futex resumed>) = 0 [pid 5328] <... rseq resumed>) = 0 [pid 5327] <... rseq resumed>) = 0 [pid 5229] rt_sigprocmask(SIG_SETMASK, [], [pid 5232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5327] set_robust_list(0x7f6abad199a0, 24 [pid 5229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5327] <... set_robust_list resumed>) = 0 [pid 5327] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5327] pwritev2(4, [{iov_base="\x85\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x72\x65\x66\x5f\x76\x65\x72\x69\x66\x79\x2c\x61\x63\x6c"..., iov_len=12288}], 1, 30720, RWF_HIPRI|RWF_DSYNC [pid 5229] futex(0x7f6abae30618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5328] set_robust_list(0x7f6abad3a9a0, 24 [pid 5232] <... mmap resumed>) = 0x7f6abad1a000 [pid 5231] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5229] futex(0x7f6abae3061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5328] <... set_robust_list resumed>) = 0 [pid 5232] mprotect(0x7f6abad1b000, 131072, PROT_READ|PROT_WRITE [pid 5328] rt_sigprocmask(SIG_SETMASK, [], [pid 5232] <... mprotect resumed>) = 0 [pid 5232] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad3a990, parent_tid=0x7f6abad3a990, exit_signal=0, stack=0x7f6abad1a000, stack_size=0x20300, tls=0x7f6abad3a6c0}./strace-static-x86_64: Process 5329 attached [pid 5328] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5328] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5232] <... clone3 resumed> => {parent_tid=[5329]}, 88) = 5329 [pid 5232] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5232] futex(0x7f6abae30618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5329] rseq(0x7f6abad3afe0, 0x20, 0, 0x53053053 [pid 5232] futex(0x7f6abae3061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5329] <... rseq resumed>) = 0 [pid 5329] set_robust_list(0x7f6abad3a9a0, 24 [pid 5233] <... mount resumed>) = 0 [pid 5233] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY [pid 5329] <... set_robust_list resumed>) = 0 [pid 5233] <... openat resumed>) = 3 [pid 5329] rt_sigprocmask(SIG_SETMASK, [], [pid 5233] chdir("./bus" [pid 5329] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5329] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5233] <... chdir resumed>) = 0 [pid 5233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5233] ioctl(4, LOOP_CLR_FD) = 0 [pid 5233] close(4) = 0 [pid 5230] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5233] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5233] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] <... futex resumed>) = 0 [pid 5228] <... futex resumed>) = 1 [pid 5233] open("./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME, 000) = 4 [pid 5233] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5233] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5229] futex(0x7f6abae3062c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] futex(0x7f6abae3062c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... futex resumed>) = 0 [pid 5228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5232] <... futex resumed>) = 0 [pid 5229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5228] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] <... futex resumed>) = 0 [pid 5232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5228] <... futex resumed>) = 1 [pid 5233] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5232] <... mmap resumed>) = 0x7f6abacf9000 [pid 5228] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5233] <... open resumed>) = 5 [pid 5232] mprotect(0x7f6abacfa000, 131072, PROT_READ|PROT_WRITE [pid 5233] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] <... mprotect resumed>) = 0 [pid 5233] <... futex resumed>) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5232] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5233] futex(0x7f6abae30608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5232] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5228] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] 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"..., 4294966868 [pid 5232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad19990, parent_tid=0x7f6abad19990, exit_signal=0, stack=0x7f6abacf9000, stack_size=0x20300, tls=0x7f6abad196c0} [pid 5228] <... futex resumed>) = 0 [ 69.577350][ T29] audit: type=1800 audit(1729218450.482:6): pid=5233 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor320" name="bus" dev="loop0" ino=263 res=0 errno=0 [pid 5228] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5330 attached [pid 5330] rseq(0x7f6abad19fe0, 0x20, 0, 0x53053053 [pid 5232] <... clone3 resumed> => {parent_tid=[5330]}, 88) = 5330 [pid 5330] <... rseq resumed>) = 0 [pid 5232] rt_sigprocmask(SIG_SETMASK, [], [pid 5330] set_robust_list(0x7f6abad199a0, 24 [pid 5232] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5330] <... set_robust_list resumed>) = 0 [pid 5232] futex(0x7f6abae30628, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] rt_sigprocmask(SIG_SETMASK, [], [pid 5232] <... futex resumed>) = 0 [pid 5330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5232] futex(0x7f6abae3062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5330] pwritev2(4, [{iov_base="\x85\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x72\x65\x66\x5f\x76\x65\x72\x69\x66\x79\x2c\x61\x63\x6c"..., iov_len=12288}], 1, 30720, RWF_HIPRI|RWF_DSYNC [pid 5229] <... mmap resumed>) = 0x7f6abacf9000 [pid 5229] mprotect(0x7f6abacfa000, 131072, PROT_READ|PROT_WRITE [pid 5228] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5229] <... mprotect resumed>) = 0 [pid 5228] futex(0x7f6abae3061c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5228] <... futex resumed>) = 0 [pid 5229] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5229] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad19990, parent_tid=0x7f6abad19990, exit_signal=0, stack=0x7f6abacf9000, stack_size=0x20300, tls=0x7f6abad196c0} [pid 5228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6abad1a000 [pid 5228] mprotect(0x7f6abad1b000, 131072, PROT_READ|PROT_WRITE [pid 5229] <... clone3 resumed> => {parent_tid=[5331]}, 88) = 5331 [pid 5228] <... mprotect resumed>) = 0 [pid 5229] rt_sigprocmask(SIG_SETMASK, [], [pid 5228] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5229] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5228] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5229] futex(0x7f6abae30628, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad3a990, parent_tid=0x7f6abad3a990, exit_signal=0, stack=0x7f6abad1a000, stack_size=0x20300, tls=0x7f6abad3a6c0} [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7f6abae3062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... clone3 resumed> => {parent_tid=[5332]}, 88) = 5332 [pid 5228] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5228] futex(0x7f6abae30618, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5332 attached ./strace-static-x86_64: Process 5331 attached [pid 5228] futex(0x7f6abae3061c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5332] rseq(0x7f6abad3afe0, 0x20, 0, 0x53053053 [pid 5331] rseq(0x7f6abad19fe0, 0x20, 0, 0x53053053 [pid 5332] <... rseq resumed>) = 0 [pid 5331] <... rseq resumed>) = 0 [pid 5332] set_robust_list(0x7f6abad3a9a0, 24 [pid 5331] set_robust_list(0x7f6abad199a0, 24 [pid 5332] <... set_robust_list resumed>) = 0 [pid 5331] <... set_robust_list resumed>) = 0 [pid 5332] rt_sigprocmask(SIG_SETMASK, [], [pid 5331] rt_sigprocmask(SIG_SETMASK, [], [pid 5332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5332] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5331] pwritev2(4, [{iov_base="\x85\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x72\x65\x66\x5f\x76\x65\x72\x69\x66\x79\x2c\x61\x63\x6c"..., iov_len=12288}], 1, 30720, RWF_HIPRI|RWF_DSYNC [pid 5232] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5229] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5228] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5228] futex(0x7f6abae3062c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6abacf9000 [pid 5228] mprotect(0x7f6abacfa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5228] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad19990, parent_tid=0x7f6abad19990, exit_signal=0, stack=0x7f6abacf9000, stack_size=0x20300, tls=0x7f6abad196c0}./strace-static-x86_64: Process 5334 attached => {parent_tid=[5334]}, 88) = 5334 [pid 5228] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5228] futex(0x7f6abae30628, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5334] rseq(0x7f6abad19fe0, 0x20, 0, 0x53053053 [pid 5228] futex(0x7f6abae3062c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5334] <... rseq resumed>) = 0 [pid 5334] set_robust_list(0x7f6abad199a0, 24) = 0 [pid 5334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5334] pwritev2(4, [{iov_base="\x85\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x61\x75\x74\x6f\x64\x65\x66\x72\x61\x67\x2c\x72\x65\x66\x5f\x76\x65\x72\x69\x66\x79\x2c\x61\x63\x6c"..., iov_len=12288}], 1, 30720, RWF_HIPRI|RWF_DSYNC [pid 5228] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5231] exit_group(0) = ? [pid 5230] exit_group(0) = ? [pid 5237] <... write resumed>) = ? [pid 5237] +++ exited with 0 +++ [pid 5229] exit_group(0) = ? [pid 5228] exit_group(0) = ? [pid 5232] exit_group(0) = ? [pid 5235] <... write resumed>) = ? [pid 5235] +++ exited with 0 +++ [pid 5329] <... open resumed>) = ? [pid 5329] +++ exited with 0 +++ [pid 5233] <... write resumed>) = ? [pid 5233] +++ exited with 0 +++ [pid 5332] <... open resumed>) = ? [pid 5332] +++ exited with 0 +++ [ 70.559719][ T5330] assertion failed: block_start != EXTENT_MAP_HOLE, in fs/btrfs/extent_io.c:1303 [ 70.583659][ T5330] ------------[ cut here ]------------ [ 70.589157][ T5330] kernel BUG at fs/btrfs/extent_io.c:1303! [ 70.613559][ T5330] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 70.620542][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz-executor320 Not tainted 6.12.0-rc3-syzkaller-00183-g6efbea77b390 #0 [ 70.631668][ T5330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 70.641747][ T5330] RIP: 0010:extent_writepage_io+0xca2/0xd20 [ 70.647687][ T5330] Code: fe 07 90 0f 0b e8 1e 28 d9 fd 48 c7 c7 80 0d 4d 8c 48 c7 c6 60 1b 4d 8c 48 c7 c2 20 0d 4d 8c b9 17 05 00 00 e8 5f f7 fe 07 90 <0f> 0b e8 f7 27 d9 fd eb 5f e8 f0 27 d9 fd 48 c7 c7 80 0d 4d 8c 48 [ 70.667310][ T5330] RSP: 0018:ffffc90004386ec0 EFLAGS: 00010246 [ 70.673372][ T5330] RAX: 000000000000004e RBX: 0000000000001000 RCX: 9daba23182e2ca00 [ 70.681331][ T5330] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 70.689287][ T5330] RBP: ffffc90004387030 R08: ffffffff8174af9c R09: 1ffff92000870d74 [ 70.697247][ T5330] R10: dffffc0000000000 R11: fffff52000870d75 R12: fffffffffffffffd [ 70.705205][ T5330] R13: 0000000000007000 R14: dffffc0000000000 R15: ffffea0001aab500 [ 70.713163][ T5330] FS: 00007f6abad196c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 70.722085][ T5330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.728653][ T5330] CR2: 00007fc8fbbf91b8 CR3: 0000000073b04000 CR4: 00000000003526f0 [ 70.736612][ T5330] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.744569][ T5330] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.752527][ T5330] Call Trace: [ 70.755810][ T5330] [ 70.758729][ T5330] ? __die_body+0x5f/0xb0 [ 70.763049][ T5330] ? die+0x9e/0xc0 [ 70.766758][ T5330] ? do_trap+0x15a/0x3a0 [ 70.770996][ T5330] ? extent_writepage_io+0xca2/0xd20 [ 70.776269][ T5330] ? do_error_trap+0x1dc/0x2c0 [ 70.781023][ T5330] ? extent_writepage_io+0xca2/0xd20 [ 70.786298][ T5330] ? __pfx_do_error_trap+0x10/0x10 [ 70.791398][ T5330] ? report_bug+0x3e8/0x500 [ 70.795903][ T5330] ? handle_invalid_op+0x34/0x40 [ 70.800829][ T5330] ? extent_writepage_io+0xca2/0xd20 [ 70.806101][ T5330] ? exc_invalid_op+0x38/0x50 [ 70.810768][ T5330] ? asm_exc_invalid_op+0x1a/0x20 [ 70.815794][ T5330] ? __wake_up_klogd+0xcc/0x110 [ 70.820636][ T5330] ? extent_writepage_io+0xca2/0xd20 [ 70.825914][ T5330] ? __pfx_extent_writepage_io+0x10/0x10 [ 70.831539][ T5330] ? folio_wait_writeback+0x1a8/0x1e0 [ 70.836904][ T5330] btrfs_writepages+0x11c4/0x2370 [ 70.841922][ T5330] ? __pfx_btrfs_writepages+0x10/0x10 [ 70.847295][ T5330] ? lockdep_hardirqs_on+0x99/0x150 [ 70.852481][ T5330] ? __pfx_end_bbio_data_write+0x10/0x10 [ 70.858105][ T5330] ? __pfx_btrfs_writepages+0x10/0x10 [ 70.863470][ T5330] do_writepages+0x35d/0x870 [ 70.868051][ T5330] ? __pfx_do_writepages+0x10/0x10 [ 70.873153][ T5330] ? wbc_attach_and_unlock_inode+0x317/0x580 [ 70.879132][ T5330] ? __pfx_lock_release+0x10/0x10 [ 70.884149][ T5330] ? do_raw_spin_unlock+0x13c/0x8b0 [ 70.889339][ T5330] ? wbc_attach_and_unlock_inode+0x369/0x580 [ 70.895312][ T5330] filemap_fdatawrite_wbc+0x125/0x180 [ 70.900676][ T5330] filemap_fdatawrite_range+0x11a/0x180 [ 70.906210][ T5330] ? pagecache_isize_extended+0x145/0x2a0 [ 70.911939][ T5330] ? __pfx_filemap_fdatawrite_range+0x10/0x10 [ 70.918019][ T5330] ? btrfs_buffered_write+0x10d1/0x1360 [ 70.923576][ T5330] ? __pfx_up_write+0x10/0x10 [ 70.928250][ T5330] btrfs_fdatawrite_range+0x53/0xe0 [ 70.933450][ T5330] btrfs_direct_write+0x565/0xa70 [ 70.938492][ T5330] ? __pfx_btrfs_direct_write+0x10/0x10 [ 70.944049][ T5330] ? __lock_acquire+0x1384/0x2050 [ 70.949087][ T5330] btrfs_do_write_iter+0x2a0/0x760 [ 70.954199][ T5330] ? mark_lock+0x9a/0x360 [ 70.958524][ T5330] ? __pfx_btrfs_do_write_iter+0x10/0x10 [ 70.964160][ T5330] do_iter_readv_writev+0x600/0x880 [ 70.969364][ T5330] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 70.975084][ T5330] ? rcu_read_lock_any_held+0xb7/0x160 [ 70.980541][ T5330] vfs_writev+0x376/0xba0 [ 70.984867][ T5330] ? __pfx_lock_acquire+0x10/0x10 [ 70.989886][ T5330] ? __pfx_vfs_writev+0x10/0x10 [ 70.994727][ T5330] ? __fget_files+0x29/0x470 [ 70.999312][ T5330] ? __fget_files+0x29/0x470 [ 71.003900][ T5330] __se_sys_pwritev2+0x1ca/0x2d0 [ 71.008831][ T5330] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 71.014282][ T5330] ? do_syscall_64+0x100/0x230 [ 71.019035][ T5330] ? __x64_sys_pwritev2+0x21/0xf0 [ 71.024051][ T5330] do_syscall_64+0xf3/0x230 [ 71.028545][ T5330] ? clear_bhb_loop+0x35/0x90 [ 71.033210][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 71.039095][ T5330] RIP: 0033:0x7f6abada48f9 [ 71.043509][ T5330] 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 [ 71.063102][ T5330] RSP: 002b:00007f6abad19208 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 71.071517][ T5330] RAX: ffffffffffffffda RBX: 00007f6abae30628 RCX: 00007f6abada48f9 [ 71.079477][ T5330] RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000004 [ 71.087434][ T5330] RBP: 00007f6abae30620 R08: 0000000000000000 R09: 0000000000000003 [ 71.095392][ T5330] R10: 0000000000007800 R11: 0000000000000246 R12: 00007f6abadfd864 [ 71.103355][ T5330] R13: 726665646f747561 R14: 697265765f666572 R15: 00000000fffffe54 [ 71.111320][ T5330] [pid 5334] <... pwritev2 resumed>) = ? [pid 5334] +++ exited with 0 +++ [pid 5228] +++ exited with 0 +++ [pid 5222] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=65 /* 0.65 s */} --- [ 71.114325][ T5330] Modules linked in: [ 71.118624][ T5330] ---[ end trace 0000000000000000 ]--- [ 71.128101][ T5330] RIP: 0010:extent_writepage_io+0xca2/0xd20 [ 71.134143][ T5330] Code: fe 07 90 0f 0b e8 1e 28 d9 fd 48 c7 c7 80 0d 4d 8c 48 c7 c6 60 1b 4d 8c 48 c7 c2 20 0d 4d 8c b9 17 05 00 00 e8 5f f7 fe 07 90 <0f> 0b e8 f7 27 d9 fd eb 5f e8 f0 27 d9 fd 48 c7 c7 80 0d 4d 8c 48 [ 71.158460][ T5330] RSP: 0018:ffffc90004386ec0 EFLAGS: 00010246 [pid 5222] restart_syscall(<... resuming interrupted clone ...> [pid 5324] <... open resumed>) = ? [pid 5324] +++ exited with 0 +++ [pid 5326] <... pwritev2 resumed>) = ? [pid 5234] <... write resumed>) = ? [pid 5326] +++ exited with 0 +++ [pid 5234] +++ exited with 0 +++ [pid 5222] <... restart_syscall resumed>) = 0 [pid 5321] <... open resumed>) = ? [pid 5321] +++ exited with 0 +++ [pid 5231] +++ exited with 0 +++ [pid 5227] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=56 /* 0.56 s */} --- [pid 5227] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5227] ioctl(3, LOOP_CLR_FD) = 0 [pid 5227] close(3) = 0 [pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5227] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556d0bc690) = 5335 [pid 5331] <... pwritev2 resumed>) = ? [pid 5328] <... open resumed>) = ? [pid 5331] +++ exited with 0 +++ [ 71.165639][ T5330] RAX: 000000000000004e RBX: 0000000000001000 RCX: 9daba23182e2ca00 [ 71.176231][ T5330] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 71.184588][ T5330] RBP: ffffc90004387030 R08: ffffffff8174af9c R09: 1ffff92000870d74 [ 71.193023][ T5330] R10: dffffc0000000000 R11: fffff52000870d75 R12: fffffffffffffffd [ 71.201957][ T5330] R13: 0000000000007000 R14: dffffc0000000000 R15: ffffea0001aab500 [pid 5328] +++ exited with 0 +++ [pid 5229] +++ exited with 0 +++ ./strace-static-x86_64: Process 5335 attached [pid 5224] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=63 /* 0.63 s */} --- [pid 5222] <... openat resumed>) = 3 [pid 5224] restart_syscall(<... resuming interrupted clone ...> [pid 5327] <... pwritev2 resumed>) = ? [pid 5335] set_robust_list(0x55556d0bc6a0, 24 [pid 5327] +++ exited with 0 +++ [pid 5230] +++ exited with 0 +++ [pid 5224] <... restart_syscall resumed>) = 0 [pid 5222] ioctl(3, LOOP_CLR_FD [pid 5223] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=50 /* 0.50 s */} --- [pid 5224] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5223] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5224] ioctl(3, LOOP_CLR_FD [pid 5223] <... openat resumed>) = 3 [pid 5335] <... set_robust_list resumed>) = 0 [pid 5222] <... ioctl resumed>) = 0 [pid 5224] <... ioctl resumed>) = 0 [pid 5223] ioctl(3, LOOP_CLR_FD [pid 5222] close(3 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5224] close(3 [pid 5223] <... ioctl resumed>) = 0 [pid 5222] <... close resumed>) = 0 [pid 5224] <... close resumed>) = 0 [pid 5223] close(3 [pid 5224] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5223] <... close resumed>) = 0 [pid 5223] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5337 attached ./strace-static-x86_64: Process 5336 attached [pid 5224] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5336 [pid 5223] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5337 [pid 5337] set_robust_list(0x55556d0bc6a0, 24 [pid 5336] set_robust_list(0x55556d0bc6a0, 24 [pid 5337] <... set_robust_list resumed>) = 0 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5337] <... prctl resumed>) = 0 [pid 5336] <... prctl resumed>) = 0 [pid 5337] setpgid(0, 0 [pid 5336] setpgid(0, 0 [pid 5337] <... setpgid resumed>) = 0 [pid 5336] <... setpgid resumed>) = 0 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5337] <... openat resumed>) = 3 [pid 5336] <... openat resumed>) = 3 [pid 5335] <... prctl resumed>) = 0 [pid 5222] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] write(3, "1000", 4 [pid 5336] write(3, "1000", 4 [pid 5337] <... write resumed>) = 4 [pid 5336] <... write resumed>) = 4 [pid 5337] close(3 [pid 5336] close(3) = 0 [pid 5336] write(1, "executing program\n", 18) = 18 executing program ./strace-static-x86_64: Process 5338 attached [pid 5336] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] setpgid(0, 0 [pid 5337] <... close resumed>) = 0 [pid 5336] <... futex resumed>) = 0 [pid 5222] <... clone resumed>, child_tidptr=0x55556d0bc690) = 5338 [pid 5335] <... setpgid resumed>) = 0 [pid 5337] write(1, "executing program\n", 18 [pid 5336] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, [pid 5338] set_robust_list(0x55556d0bc6a0, 24 [pid 5337] <... write resumed>) = 18 [pid 5336] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5337] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5338] <... set_robust_list resumed>) = 0 [pid 5337] <... futex resumed>) = 0 [pid 5336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] <... openat resumed>) = 3 [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5337] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, [pid 5336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5337] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5336] <... mmap resumed>) = 0x7f6abad3b000 [pid 5335] write(3, "1000", 4 [pid 5338] <... prctl resumed>) = 0 [pid 5337] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5336] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5338] setpgid(0, 0 [pid 5337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5336] <... mprotect resumed>) = 0 [pid 5335] <... write resumed>) = 4 [pid 5338] <... setpgid resumed>) = 0 [pid 5337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5336] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5337] <... mmap resumed>) = 0x7f6abad3b000 [pid 5336] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5335] close(3 [pid 5338] <... openat resumed>) = 3 [pid 5337] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5336] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0} [pid 5338] write(3, "1000", 4 [pid 5337] <... mprotect resumed>) = 0 [pid 5335] <... close resumed>) = 0 ./strace-static-x86_64: Process 5339 attached executing program [pid 5338] <... write resumed>) = 4 [pid 5337] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5336] <... clone3 resumed> => {parent_tid=[5339]}, 88) = 5339 [pid 5335] write(1, "executing program\n", 18 [pid 5339] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053 [pid 5338] close(3 [pid 5336] rt_sigprocmask(SIG_SETMASK, [], [pid 5335] <... write resumed>) = 18 [pid 5339] <... rseq resumed>) = 0 [pid 5338] <... close resumed>) = 0 [pid 5337] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5336] <... rt_sigprocmask resumed>NULL, 8) = 0 executing program [pid 5339] set_robust_list(0x7f6abad5b9a0, 24 [pid 5338] write(1, "executing program\n", 18 [pid 5337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0} [pid 5336] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... set_robust_list resumed>) = 0 [pid 5338] <... write resumed>) = 18 [pid 5335] <... futex resumed>) = 0 [pid 5338] futex(0x7f6abae3060c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, NULL, 8) = 0 [pid 5338] <... futex resumed>) = 0 [pid 5335] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5338] rt_sigaction(SIGRT_1, {sa_handler=0x7f6abadca7e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6abadbbe90}, [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5338] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5337] <... clone3 resumed> => {parent_tid=[5341]}, 88) = 5341 [ 71.210215][ T5330] FS: 00007f6abad196c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [pid 5337] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5341 attached [pid 5339] rt_sigprocmask(SIG_SETMASK, [], [pid 5337] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5336] <... futex resumed>) = 0 [pid 5339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5337] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5339] memfd_create("syzkaller", 0 [pid 5337] <... futex resumed>) = 0 [pid 5339] <... memfd_create resumed>) = 3 [pid 5337] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5341] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053 [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5341] <... rseq resumed>) = 0 [pid 5339] <... mmap resumed>) = 0x7f6ab2800000 [pid 5341] set_robust_list(0x7f6abad5b9a0, 24) = 0 [pid 5341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5341] memfd_create("syzkaller", 0) = 3 [pid 5341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6ab2800000 [pid 5338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5335] <... mmap resumed>) = 0x7f6abad3b000 [pid 5335] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5335] <... mprotect resumed>) = 0 [pid 5338] <... mmap resumed>) = 0x7f6abad3b000 [pid 5335] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5338] mprotect(0x7f6abad3c000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5335] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5338] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5335] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0}./strace-static-x86_64: Process 5342 attached [pid 5338] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5342] rseq(0x7f6abad5bfe0, 0x20, 0, 0x53053053 [pid 5338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6abad5b990, parent_tid=0x7f6abad5b990, exit_signal=0, stack=0x7f6abad3b000, stack_size=0x20300, tls=0x7f6abad5b6c0} [pid 5335] <... clone3 resumed> => {parent_tid=[5342]}, 88) = 5342 [pid 5342] <... rseq resumed>) = 0 [pid 5335] rt_sigprocmask(SIG_SETMASK, [], [pid 5342] set_robust_list(0x7f6abad5b9a0, 24 [pid 5338] <... clone3 resumed> => {parent_tid=[5343]}, 88) = 5343 [pid 5335] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] futex(0x7f6abae30608, FUTEX_WAKE_PRIVATE, 1000000 [pid 5338] rt_sigprocmask(SIG_SETMASK, [], [pid 5335] <... futex resumed>) = 0 [pid 5342] <... set_robust_list resumed>) = 0 [pid 5338] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5335] futex(0x7f6abae3060c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5343 attached [pid 5342] rt_sigprocmask(SIG_SETMASK, [],