./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2960399970 <...> Warning: Permanently added '10.128.1.146' (ED25519) to the list of known hosts. execve("./syz-executor2960399970", ["./syz-executor2960399970"], 0x7ffc5f74c110 /* 10 vars */) = 0 brk(NULL) = 0x55558bca6000 brk(0x55558bca6d40) = 0x55558bca6d40 arch_prctl(ARCH_SET_FS, 0x55558bca63c0) = 0 set_tid_address(0x55558bca6690) = 5829 set_robust_list(0x55558bca66a0, 24) = 0 rseq(0x55558bca6ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2960399970", 4096) = 28 getrandom("\x7a\xe6\xba\x5c\x97\x39\x69\x34", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558bca6d40 brk(0x55558bcc7d40) = 0x55558bcc7d40 brk(0x55558bcc8000) = 0x55558bcc8000 mprotect(0x7fd142f72000, 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 5830 attached , child_tidptr=0x55558bca6690) = 5830 [pid 5830] set_robust_list(0x55558bca66a0, 24 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5831 attached [pid 5830] mkdir("./syzkaller.e8B4hT", 0700 [pid 5829] <... clone resumed>, child_tidptr=0x55558bca6690) = 5831 [pid 5831] set_robust_list(0x55558bca66a0, 24 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5832 attached [pid 5831] mkdir("./syzkaller.DBIrcO", 0700 [pid 5832] set_robust_list(0x55558bca66a0, 24 [pid 5830] <... mkdir resumed>) = 0 [pid 5832] <... set_robust_list resumed>) = 0 [pid 5829] <... clone resumed>, child_tidptr=0x55558bca6690) = 5832 [pid 5832] mkdir("./syzkaller.D4t8UX", 0700 [pid 5831] <... mkdir resumed>) = 0 [pid 5830] chmod("./syzkaller.e8B4hT", 0777 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5832] <... mkdir resumed>) = 0 [pid 5831] chmod("./syzkaller.DBIrcO", 0777 [pid 5830] <... chmod resumed>) = 0 [pid 5830] chdir("./syzkaller.e8B4hT" [pid 5831] <... chmod resumed>) = 0 [pid 5832] chmod("./syzkaller.D4t8UX", 0777 [pid 5830] <... chdir resumed>) = 0 [pid 5832] <... chmod resumed>) = 0 [pid 5831] chdir("./syzkaller.DBIrcO" [pid 5830] mkdir("./0", 0777./strace-static-x86_64: Process 5833 attached [pid 5829] <... clone resumed>, child_tidptr=0x55558bca6690) = 5833 [pid 5833] set_robust_list(0x55558bca66a0, 24 [pid 5832] chdir("./syzkaller.D4t8UX" [pid 5831] <... chdir resumed>) = 0 [pid 5833] <... set_robust_list resumed>) = 0 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] mkdir("./syzkaller.Ii7ETV", 0700 [pid 5832] <... chdir resumed>) = 0 [pid 5831] mkdir("./0", 0777 [pid 5830] <... mkdir resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5832] mkdir("./0", 0777 [pid 5831] <... mkdir resumed>) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5832] <... mkdir resumed>) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5830] <... openat resumed>) = 3 [pid 5833] chmod("./syzkaller.Ii7ETV", 0777./strace-static-x86_64: Process 5834 attached [pid 5829] <... clone resumed>, child_tidptr=0x55558bca6690) = 5834 [pid 5832] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5830] ioctl(3, LOOP_CLR_FD [pid 5833] <... chmod resumed>) = 0 [pid 5831] <... openat resumed>) = 3 [pid 5830] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5834] set_robust_list(0x55558bca66a0, 24 [pid 5831] ioctl(3, LOOP_CLR_FD [pid 5830] close(3 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5833] chdir("./syzkaller.Ii7ETV" [pid 5832] <... openat resumed>) = 3 [pid 5831] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5834] mkdir("./syzkaller.3T7eVY", 0700 [pid 5833] <... chdir resumed>) = 0 [pid 5830] <... close resumed>) = 0 [pid 5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("./0", 0777 [pid 5832] ioctl(3, LOOP_CLR_FD [pid 5831] close(3./strace-static-x86_64: Process 5836 attached [pid 5834] chmod("./syzkaller.3T7eVY", 0777 [pid 5833] <... mkdir resumed>) = 0 [pid 5832] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5831] <... close resumed>) = 0 [pid 5830] <... clone resumed>, child_tidptr=0x55558bca6690) = 5836 [pid 5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] set_robust_list(0x55558bca66a0, 24 [pid 5834] <... chmod resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5832] close(3) = 0 [pid 5831] <... clone resumed>, child_tidptr=0x55558bca6690) = 5837 ./strace-static-x86_64: Process 5837 attached [pid 5836] <... set_robust_list resumed>) = 0 [pid 5834] chdir("./syzkaller.3T7eVY" [pid 5833] <... openat resumed>) = 3 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5837] set_robust_list(0x55558bca66a0, 24 [pid 5836] chdir("./0" [pid 5834] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5838 attached [pid 5837] <... set_robust_list resumed>) = 0 [pid 5836] <... chdir resumed>) = 0 [pid 5834] mkdir("./0", 0777 [pid 5837] chdir("./0" [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] <... mkdir resumed>) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5838] set_robust_list(0x55558bca66a0, 24 [pid 5837] <... chdir resumed>) = 0 [pid 5836] <... prctl resumed>) = 0 [pid 5832] <... clone resumed>, child_tidptr=0x55558bca6690) = 5838 [pid 5838] <... set_robust_list resumed>) = 0 [pid 5836] setpgid(0, 0 [pid 5833] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5838] chdir("./0" [pid 5837] <... prctl resumed>) = 0 [pid 5836] <... setpgid resumed>) = 0 [pid 5838] <... chdir resumed>) = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5837] setpgid(0, 0 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5833] close(3 [pid 5838] <... prctl resumed>) = 0 [pid 5837] <... setpgid resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5838] setpgid(0, 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5836] <... openat resumed>) = 3 [pid 5834] <... openat resumed>) = 3 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5838] <... setpgid resumed>) = 0 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] <... openat resumed>) = 3 [pid 5836] write(3, "1000", 4 [pid 5837] write(3, "1000", 4 [pid 5836] <... write resumed>) = 4 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5836] close(3 [pid 5834] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5836] <... close resumed>) = 0 [pid 5837] <... write resumed>) = 4 [pid 5836] symlink("/dev/binderfs", "./binderfs" [pid 5834] close(3./strace-static-x86_64: Process 5839 attached [pid 5838] <... openat resumed>) = 3 [pid 5837] close(3 [pid 5836] <... symlink resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5839] set_robust_list(0x55558bca66a0, 24 [pid 5838] write(3, "1000", 4 [pid 5837] <... close resumed>) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55558bca6690) = 5839 [pid 5838] <... write resumed>) = 4 [pid 5839] <... set_robust_list resumed>) = 0 [pid 5838] close(3) = 0 [pid 5838] symlink("/dev/binderfs", "./binderfs" [pid 5837] symlink("/dev/binderfs", "./binderfs" [pid 5836] write(1, "executing program\n", 18 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5840 attached [pid 5837] <... symlink resumed>) = 0 executing program [pid 5836] <... write resumed>) = 18 [pid 5839] chdir("./0" [pid 5836] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5840] set_robust_list(0x55558bca66a0, 24executing program [pid 5837] write(1, "executing program\n", 18 [pid 5836] <... futex resumed>) = 0 [pid 5840] <... set_robust_list resumed>) = 0 [pid 5837] <... write resumed>) = 18 [pid 5836] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, [pid 5840] chdir("./0" [pid 5839] <... chdir resumed>) = 0 [pid 5838] <... symlink resumed>) = 0 [pid 5837] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5834] <... clone resumed>, child_tidptr=0x55558bca6690) = 5840 [pid 5840] <... chdir resumed>) = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5837] <... futex resumed>) = 0 [pid 5836] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], executing program [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5839] <... prctl resumed>) = 0 [pid 5838] write(1, "executing program\n", 18 [pid 5837] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, [pid 5836] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5840] <... prctl resumed>) = 0 [pid 5839] setpgid(0, 0 [pid 5838] <... write resumed>) = 18 [pid 5837] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5840] setpgid(0, 0 [pid 5839] <... setpgid resumed>) = 0 [pid 5838] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5836] <... mmap resumed>) = 0x7fd142e81000 [pid 5840] <... setpgid resumed>) = 0 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5838] <... futex resumed>) = 0 [pid 5837] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5836] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5839] <... openat resumed>) = 3 [pid 5838] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, [pid 5837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5836] <... mprotect resumed>) = 0 [pid 5839] write(3, "1000", 4 [pid 5838] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5839] <... write resumed>) = 4 [pid 5838] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5840] <... openat resumed>) = 3 [pid 5839] close(3 [pid 5838] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... mmap resumed>) = 0x7fd142e81000 [pid 5836] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5840] write(3, "1000", 4 [pid 5837] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE [pid 5840] <... write resumed>) = 4 [pid 5839] <... close resumed>) = 0 [pid 5838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5837] <... mprotect resumed>) = 0 [pid 5836] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5840] close(3 [pid 5839] symlink("/dev/binderfs", "./binderfs" [pid 5838] <... mmap resumed>) = 0x7fd142e81000 [pid 5837] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5836] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0} [pid 5840] <... close resumed>) = 0 [pid 5838] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE [pid 5837] <... rt_sigprocmask resumed>[], 8) = 0 executing program ./strace-static-x86_64: Process 5841 attached [pid 5840] symlink("/dev/binderfs", "./binderfs" [pid 5838] <... mprotect resumed>) = 0 [pid 5837] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0} [pid 5841] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053 [pid 5840] <... symlink resumed>) = 0 [pid 5839] <... symlink resumed>) = 0 [pid 5836] <... clone3 resumed> => {parent_tid=[5841]}, 88) = 5841 [pid 5841] <... rseq resumed>) = 0 [pid 5839] write(1, "executing program\n", 18 [pid 5838] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5841] set_robust_list(0x7fd142ea19a0, 24 [pid 5839] <... write resumed>) = 18 [pid 5838] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5839] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5841] rt_sigprocmask(SIG_SETMASK, [], [pid 5839] <... futex resumed>) = 0 [pid 5838] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0} [pid 5841] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5839] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, ./strace-static-x86_64: Process 5842 attached executing program [pid 5841] futex(0x7fd142f786a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5840] write(1, "executing program\n", 18 [pid 5839] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5836] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5843 attached [pid 5842] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053 [pid 5840] <... write resumed>) = 18 [pid 5839] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5838] <... clone3 resumed> => {parent_tid=[5842]}, 88) = 5842 [pid 5837] <... clone3 resumed> => {parent_tid=[5843]}, 88) = 5843 [pid 5836] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5843] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053 [pid 5842] <... rseq resumed>) = 0 [pid 5840] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5839] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5838] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] rt_sigprocmask(SIG_SETMASK, [], [pid 5836] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] <... rseq resumed>) = 0 [pid 5842] set_robust_list(0x7fd142ea19a0, 24 [pid 5841] <... futex resumed>) = 0 [pid 5840] <... futex resumed>) = 0 [pid 5839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5838] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5836] <... futex resumed>) = 1 [pid 5843] set_robust_list(0x7fd142ea19a0, 24 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5841] memfd_create("syzkaller", 0 [pid 5840] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, [pid 5837] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5838] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5842] rt_sigprocmask(SIG_SETMASK, [], [pid 5841] <... memfd_create resumed>) = 3 [pid 5840] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5839] <... mmap resumed>) = 0x7fd142e81000 [pid 5838] <... futex resumed>) = 0 [pid 5837] <... futex resumed>) = 0 [pid 5843] rt_sigprocmask(SIG_SETMASK, [], [pid 5842] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5839] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE [pid 5838] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5843] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5842] memfd_create("syzkaller", 0 [pid 5841] <... mmap resumed>) = 0x7fd13aa00000 [pid 5840] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5839] <... mprotect resumed>) = 0 [pid 5837] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5843] memfd_create("syzkaller", 0 [pid 5842] <... memfd_create resumed>) = 3 [pid 5840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5843] <... memfd_create resumed>) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] <... mmap resumed>) = 0x7fd142e81000 [pid 5839] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5842] <... mmap resumed>) = 0x7fd13aa00000 [pid 5839] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5843] <... mmap resumed>) = 0x7fd13aa00000 [pid 5840] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE [pid 5839] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0} [pid 5840] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 5844 attached [pid 5840] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5840] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0}./strace-static-x86_64: Process 5845 attached [pid 5845] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053 [pid 5840] <... clone3 resumed> => {parent_tid=[5845]}, 88) = 5845 [pid 5845] <... rseq resumed>) = 0 [pid 5840] rt_sigprocmask(SIG_SETMASK, [], [pid 5845] set_robust_list(0x7fd142ea19a0, 24 [pid 5840] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5840] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] rt_sigprocmask(SIG_SETMASK, [], [pid 5840] <... futex resumed>) = 0 [pid 5845] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5840] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5845] memfd_create("syzkaller", 0) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd13aa00000 [pid 5844] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053) = 0 [pid 5839] <... clone3 resumed> => {parent_tid=[5844]}, 88) = 5844 [pid 5844] set_robust_list(0x7fd142ea19a0, 24 [pid 5839] rt_sigprocmask(SIG_SETMASK, [], [pid 5844] <... set_robust_list resumed>) = 0 [pid 5839] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5844] rt_sigprocmask(SIG_SETMASK, [], [pid 5839] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5839] <... futex resumed>) = 0 [pid 5844] memfd_create("syzkaller", 0 [pid 5839] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5844] <... memfd_create resumed>) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd13aa00000 [pid 5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] <... write resumed>) = 16777216 [pid 5842] <... write resumed>) = 16777216 [pid 5843] munmap(0x7fd13aa00000, 138412032 [pid 5845] <... write resumed>) = 16777216 [pid 5841] <... write resumed>) = 16777216 [pid 5845] munmap(0x7fd13aa00000, 138412032 [pid 5844] <... write resumed>) = 16777216 [pid 5843] <... munmap resumed>) = 0 [pid 5842] munmap(0x7fd13aa00000, 138412032 [pid 5841] munmap(0x7fd13aa00000, 138412032 [pid 5844] munmap(0x7fd13aa00000, 138412032 [pid 5843] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5845] <... munmap resumed>) = 0 [pid 5843] ioctl(4, LOOP_SET_FD, 3 [pid 5842] <... munmap resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] <... munmap resumed>) = 0 [pid 5843] <... ioctl resumed>) = 0 [pid 5841] <... munmap resumed>) = 0 [pid 5845] <... openat resumed>) = 4 [pid 5842] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5845] ioctl(4, LOOP_SET_FD, 3 [pid 5843] close(3 [pid 5842] <... openat resumed>) = 4 [pid 5845] <... ioctl resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5843] <... close resumed>) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5845] close(3 [pid 5843] close(4 [pid 5845] <... close resumed>) = 0 [pid 5843] <... close resumed>) = 0 [pid 5845] close(4 [pid 5843] mkdir("./file1", 0777 [pid 5845] <... close resumed>) = 0 [pid 5843] <... mkdir resumed>) = 0 [pid 5841] <... openat resumed>) = 4 [pid 5844] <... openat resumed>) = 4 [pid 5844] ioctl(4, LOOP_SET_FD, 3 [pid 5845] mkdir("./file1", 0777) = 0 [pid 5843] mount("/dev/loop1", "./file1", "bcachefs", MS_I_VERSION, "str_hash=crc64,direct_io,norecovery,fsck,journal_flush_disabled,norecovery,btree_node_mem_ptr_optimi"... [pid 5845] mount("/dev/loop4", "./file1", "bcachefs", MS_I_VERSION, "str_hash=crc64,direct_io,norecovery,fsck,journal_flush_disabled,norecovery,btree_node_mem_ptr_optimi"... [pid 5844] <... ioctl resumed>) = 0 [pid 5841] ioctl(4, LOOP_SET_FD, 3 [ 62.270948][ T5843] loop1: detected capacity change from 0 to 32768 [ 62.289558][ T5845] loop4: detected capacity change from 0 to 32768 [ 62.300266][ T5844] loop3: detected capacity change from 0 to 32768 [ 62.310783][ T5841] loop0: detected capacity change from 0 to 32768 [pid 5842] ioctl(4, LOOP_SET_FD, 3 [pid 5844] close(3) = 0 [pid 5844] close(4) = 0 [pid 5842] <... ioctl resumed>) = 0 [pid 5844] mkdir("./file1", 0777 [pid 5841] <... ioctl resumed>) = 0 [pid 5841] close(3) = 0 [pid 5841] close(4) = 0 [pid 5841] mkdir("./file1", 0777 [pid 5844] <... mkdir resumed>) = 0 [pid 5841] <... mkdir resumed>) = 0 [ 62.310903][ T5842] loop2: detected capacity change from 0 to 32768 [pid 5841] mount("/dev/loop0", "./file1", "bcachefs", MS_I_VERSION, "str_hash=crc64,direct_io,norecovery,fsck,journal_flush_disabled,norecovery,btree_node_mem_ptr_optimi"... [pid 5842] close(3 [pid 5844] mount("/dev/loop3", "./file1", "bcachefs", MS_I_VERSION, "str_hash=crc64,direct_io,norecovery,fsck,journal_flush_disabled,norecovery,btree_node_mem_ptr_optimi"... [pid 5842] <... close resumed>) = 0 [pid 5842] close(4) = 0 [pid 5842] mkdir("./file1", 0777) = 0 [ 62.503556][ T5843] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,str_hash=crc64,journal_flush_disabled,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc [ 62.525591][ T5843] bcachefs (loop1): recovering from clean shutdown, journal seq 10 [ 62.534128][ T5843] bcachefs (loop1): Version upgrade required: [ 62.534128][ T5843] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 62.534128][ T5843] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 62.534128][ T5843] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 62.613690][ T5843] bcachefs (loop1): dropping and reconstructing all alloc info [ 62.614045][ T5841] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 62.631040][ T5841] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 62.666074][ T5842] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 62.682117][ T5842] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 62.683756][ T5844] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 62.706275][ T5843] bcachefs (loop1): check_topology... done [ 62.713200][ T5845] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open [ 62.729771][ T5843] bcachefs (loop1): accounting_read... [ 62.731158][ T5844] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 62.734120][ T5845] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete [ 62.751963][ T5843] done [pid 5842] mount("/dev/loop2", "./file1", "bcachefs", MS_I_VERSION, "str_hash=crc64,direct_io,norecovery,fsck,journal_flush_disabled,norecovery,btree_node_mem_ptr_optimi"... [pid 5841] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5841] ioctl(3, LOOP_CLR_FD) = 0 [ 62.764349][ T5841] bcachefs: bch2_fs_get_tree() error: EINVAL [ 62.776115][ T5843] bcachefs (loop1): alloc_read... done [ 62.791050][ T5843] bcachefs (loop1): stripes_read... done [ 62.796977][ T5843] bcachefs (loop1): snapshots_read... done [pid 5841] close(3 [pid 5844] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5845] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5845] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5845] <... openat resumed>) = 3 [pid 5844] <... ioctl resumed>) = 0 [pid 5844] close(3 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 5842] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 5845] <... ioctl resumed>) = 0 [ 62.841693][ T5843] bcachefs (loop1): check_allocations... [ 62.909770][ T5844] bcachefs: bch2_fs_get_tree() error: EINVAL [ 62.933601][ T5845] bcachefs: bch2_fs_get_tree() error: EINVAL [ 62.933676][ T5842] bcachefs: bch2_fs_get_tree() error: EINVAL [ 62.940780][ T5843] done [ 62.954634][ T5843] bcachefs (loop1): going read-write [pid 5842] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5845] close(3 [pid 5842] <... openat resumed>) = 3 [pid 5842] ioctl(3, LOOP_CLR_FD) = 0 [pid 5842] close(3 [pid 5843] <... mount resumed>) = 0 [pid 5843] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5843] chdir("./file1") = 0 [ 62.999413][ T5843] bcachefs (loop1): done starting filesystem [pid 5843] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5843] ioctl(4, LOOP_CLR_FD) = 0 [pid 5843] close(4) = 0 [pid 5843] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5843] futex(0x7fd142f786a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] <... futex resumed>) = 0 [pid 5837] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] <... futex resumed>) = 0 [pid 5841] <... close resumed>) = 0 [pid 5837] <... futex resumed>) = 1 [pid 5837] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5843] mkdir("./bus", 0777 [pid 5841] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5836] <... futex resumed>) = 0 [pid 5843] <... mkdir resumed>) = 0 [pid 5841] mkdir("./bus", 0777 [pid 5836] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5843] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5836] <... futex resumed>) = 0 [pid 5841] <... mkdir resumed>) = 0 [pid 5836] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5841] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5836] <... futex resumed>) = ? [pid 5841] +++ killed by SIGSEGV +++ [pid 5836] +++ killed by SIGSEGV +++ [pid 5830] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5836, si_uid=0, si_status=SIGSEGV, si_utime=4 /* 0.04 s */, si_stime=42 /* 0.42 s */} --- [pid 5837] <... futex resumed>) = ? [pid 5843] +++ killed by SIGSEGV +++ [pid 5837] +++ killed by SIGSEGV +++ [pid 5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5837, si_uid=0, si_status=SIGSEGV, si_utime=4 /* 0.04 s */, si_stime=39 /* 0.39 s */} --- [pid 5830] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5830] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5831] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5830] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5831] <... openat resumed>) = 3 [pid 5830] <... openat resumed>) = 3 [pid 5831] newfstatat(3, "", [pid 5830] newfstatat(3, "", [pid 5831] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5830] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5831] getdents64(3, [pid 5830] getdents64(3, [pid 5831] <... getdents64 resumed>0x55558bca7730 /* 4 entries */, 32768) = 112 [pid 5830] <... getdents64 resumed>0x55558bca7730 /* 5 entries */, 32768) = 136 [pid 5831] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5830] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5830] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5831] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5830] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5831] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5830] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5831] unlink("./0/binderfs" [pid 5830] unlink("./0/binderfs" [pid 5831] <... unlink resumed>) = 0 [pid 5830] <... unlink resumed>) = 0 [pid 5831] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5830] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5830] newfstatat(AT_FDCWD, "./0/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5830] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5830] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5830] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5830] getdents64(4, 0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5830] getdents64(4, 0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5830] close(4) = 0 [pid 5830] rmdir("./0/bus") = 0 [pid 5830] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5830] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5830] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5830] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5830] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5830] getdents64(4, 0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5830] getdents64(4, 0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5830] close(4) = 0 [pid 5830] rmdir("./0/file1") = 0 [pid 5830] getdents64(3, 0x55558bca7730 /* 0 entries */, 32768) = 0 [pid 5830] close(3) = 0 [pid 5830] rmdir("./0") = 0 [pid 5830] mkdir("./1", 0777) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5830] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5830] close(3) = 0 [pid 5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5886 attached , child_tidptr=0x55558bca6690) = 5886 [pid 5886] set_robust_list(0x55558bca66a0, 24) = 0 [pid 5886] chdir("./1") = 0 [pid 5886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 63.181345][ T5831] bcachefs (loop1): shutting down [ 63.186618][ T5831] bcachefs (loop1): going read-only [pid 5886] setpgid(0, 0) = 0 [pid 5844] <... close resumed>) = 0 [pid 5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5842] <... close resumed>) = 0 [pid 5886] <... openat resumed>) = 3 [pid 5844] <... futex resumed>) = 1 [pid 5842] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5839] <... futex resumed>) = 0 [pid 5886] write(3, "1000", 4 [pid 5844] futex(0x7fd142f786a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5842] <... futex resumed>) = 1 [pid 5839] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5838] <... futex resumed>) = 0 [pid 5886] <... write resumed>) = 4 [pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5842] mkdir("./bus", 0777 [pid 5839] <... futex resumed>) = 0 [pid 5838] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] mkdir("./bus", 0777 [pid 5842] <... mkdir resumed>) = 0 [pid 5844] <... mkdir resumed>) = 0 [pid 5842] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5886] close(3 [pid 5845] <... close resumed>) = 0 [pid 5844] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5839] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5838] <... futex resumed>) = 0 [pid 5886] <... close resumed>) = 0 [pid 5845] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5839] <... futex resumed>) = ? [pid 5886] symlink("/dev/binderfs", "./binderfs" [pid 5845] <... futex resumed>) = 1 [pid 5844] +++ killed by SIGSEGV +++ [pid 5840] <... futex resumed>) = 0 [pid 5839] +++ killed by SIGSEGV +++ [pid 5840] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5839, si_uid=0, si_status=SIGSEGV, si_utime=5 /* 0.05 s */, si_stime=45 /* 0.45 s */} --- [pid 5840] <... futex resumed>) = 0 [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 5840] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5886] <... symlink resumed>) = 0 [pid 5845] mkdir("./bus", 0777 [pid 5842] +++ killed by SIGSEGV +++ [pid 5838] +++ killed by SIGSEGV +++ [pid 5833] <... restart_syscall resumed>) = 0 [pid 5845] <... mkdir resumed>) = 0 [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5838, si_uid=0, si_status=SIGSEGV, si_utime=5 /* 0.05 s */, si_stime=37 /* 0.37 s */} --- [pid 5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5886] write(1, "executing program\n", 18 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 5886] <... write resumed>) = 18 [pid 5845] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5832] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] <... futex resumed>) = ? [pid 5833] <... openat resumed>) = 3 [pid 5832] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] newfstatat(3, "", [pid 5832] <... openat resumed>) = 3 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] newfstatat(3, "", [pid 5833] getdents64(3, [pid 5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5886] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... getdents64 resumed>0x55558bca7730 /* 5 entries */, 32768) = 136 [pid 5832] getdents64(3, [pid 5886] <... futex resumed>) = 0 [pid 5845] +++ killed by SIGSEGV +++ [pid 5840] +++ killed by SIGSEGV +++ [pid 5832] <... getdents64 resumed>0x55558bca7730 /* 5 entries */, 32768) = 136 [pid 5886] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5840, si_uid=0, si_status=SIGSEGV, si_utime=4 /* 0.04 s */, si_stime=47 /* 0.47 s */} --- [pid 5832] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5886] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5886] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 63.240607][ T5831] bcachefs (loop1): finished waiting for writes to stop [ 63.265973][ T5831] bcachefs (loop1): flushing journal and stopping allocators, journal seq 11 [pid 5832] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5832] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5832] unlink("./0/binderfs") = 0 [pid 5834] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5832] newfstatat(AT_FDCWD, "./0/bus", [pid 5834] <... openat resumed>) = 3 [pid 5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(3, "", [pid 5832] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5886] <... mmap resumed>) = 0x7fd142e81000 [pid 5834] getdents64(3, [pid 5833] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5832] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5886] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE [pid 5834] <... getdents64 resumed>0x55558bca7730 /* 5 entries */, 32768) = 136 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5832] <... openat resumed>) = 4 [pid 5886] <... mprotect resumed>) = 0 [pid 5834] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] newfstatat(4, "", [pid 5886] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] unlink("./0/binderfs" [pid 5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5886] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5834] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5833] <... unlink resumed>) = 0 [pid 5832] getdents64(4, [pid 5886] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0} [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] <... getdents64 resumed>0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5834] unlink("./0/binderfs" [pid 5832] getdents64(4, [pid 5834] <... unlink resumed>) = 0 [pid 5832] <... getdents64 resumed>0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5832] close(4 [pid 5886] <... clone3 resumed> => {parent_tid=[5888]}, 88) = 5888 [pid 5832] <... close resumed>) = 0 [pid 5886] rt_sigprocmask(SIG_SETMASK, [], [pid 5834] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] rmdir("./0/bus"./strace-static-x86_64: Process 5888 attached [pid 5886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] <... rmdir resumed>) = 0 [pid 5886] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(AT_FDCWD, "./0/bus", [pid 5833] newfstatat(AT_FDCWD, "./0/bus", [pid 5832] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5888] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053 [pid 5886] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5832] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5888] <... rseq resumed>) = 0 [pid 5886] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5834] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] newfstatat(AT_FDCWD, "./0/file1", [pid 5888] set_robust_list(0x7fd142ea19a0, 24 [pid 5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5832] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5832] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] <... openat resumed>) = 4 [pid 5832] <... openat resumed>) = 4 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(4, "", [pid 5832] newfstatat(4, "", [pid 5888] <... set_robust_list resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5888] rt_sigprocmask(SIG_SETMASK, [], [pid 5834] <... openat resumed>) = 4 [pid 5833] getdents64(4, [pid 5888] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] newfstatat(4, "", [pid 5833] <... getdents64 resumed>0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5832] getdents64(4, [pid 5888] memfd_create("syzkaller", 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(4, [pid 5832] <... getdents64 resumed>0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5888] <... memfd_create resumed>) = 3 [pid 5834] getdents64(4, [pid 5833] <... getdents64 resumed>0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5832] getdents64(4, [pid 5888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5834] <... getdents64 resumed>0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5833] close(4 [pid 5832] <... getdents64 resumed>0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5888] <... mmap resumed>) = 0x7fd13aa00000 [pid 5834] getdents64(4, [pid 5833] <... close resumed>) = 0 [pid 5832] close(4 [pid 5833] rmdir("./0/bus" [pid 5832] <... close resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 5832] rmdir("./0/file1") = 0 [pid 5834] <... getdents64 resumed>0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5834] close(4 [pid 5832] getdents64(3, [pid 5834] <... close resumed>) = 0 [pid 5832] <... getdents64 resumed>0x55558bca7730 /* 0 entries */, 32768) = 0 [pid 5834] rmdir("./0/bus" [pid 5833] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] close(3 [pid 5834] <... rmdir resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] <... close resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./0/file1", [pid 5832] rmdir("./0" [pid 5834] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5832] <... rmdir resumed>) = 0 [pid 5833] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./0/file1", [pid 5833] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5832] mkdir("./1", 0777 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... openat resumed>) = 4 [pid 5832] <... mkdir resumed>) = 0 [pid 5834] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] newfstatat(4, "", [pid 5832] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] getdents64(4, [pid 5832] ioctl(3, LOOP_CLR_FD [pid 5834] <... openat resumed>) = 4 [pid 5833] <... getdents64 resumed>0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5832] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5834] newfstatat(4, "", [pid 5833] getdents64(4, [pid 5832] close(3 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... getdents64 resumed>0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5832] <... close resumed>) = 0 [pid 5834] getdents64(4, [pid 5833] close(4 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... getdents64 resumed>0x55558bcaf770 /* 2 entries */, 32768) = 48 [pid 5833] <... close resumed>) = 0 [pid 5833] rmdir("./0/file1" [pid 5834] getdents64(4, [pid 5833] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5889 attached [pid 5834] <... getdents64 resumed>0x55558bcaf770 /* 0 entries */, 32768) = 0 [pid 5833] getdents64(3, [pid 5889] set_robust_list(0x55558bca66a0, 24 [pid 5834] close(4 [pid 5833] <... getdents64 resumed>0x55558bca7730 /* 0 entries */, 32768) = 0 [pid 5889] <... set_robust_list resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5833] close(3 [pid 5834] rmdir("./0/file1" [pid 5833] <... close resumed>) = 0 [pid 5889] chdir("./1" [pid 5834] <... rmdir resumed>) = 0 [pid 5833] rmdir("./0" [pid 5832] <... clone resumed>, child_tidptr=0x55558bca6690) = 5889 [pid 5833] <... rmdir resumed>) = 0 [ 63.319973][ T5831] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 15 [ 63.337560][ T5831] bcachefs (loop1): unshutdown complete, journal seq 16 [ 63.349515][ T5831] bcachefs (loop1): done going read-only, filesystem not clean [pid 5834] getdents64(3, 0x55558bca7730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./0" [pid 5833] mkdir("./1", 0777 [pid 5889] <... chdir resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5834] mkdir("./1", 0777 [pid 5889] setpgid(0, 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5889] <... setpgid resumed>) = 0 [pid 5833] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5833] close(3) = 0 [pid 5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5890 attached [pid 5889] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5889] write(3, "1000", 4 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... clone resumed>, child_tidptr=0x55558bca6690) = 5890 [pid 5890] set_robust_list(0x55558bca66a0, 24 [pid 5889] <... write resumed>) = 4 [pid 5890] <... set_robust_list resumed>) = 0 [pid 5889] close(3 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5889] <... close resumed>) = 0 [pid 5890] chdir("./1" [pid 5889] symlink("/dev/binderfs", "./binderfs" [pid 5834] <... ioctl resumed>) = -1 ENXIO (No such device or address) executing program [pid 5890] <... chdir resumed>) = 0 [pid 5889] <... symlink resumed>) = 0 [pid 5834] close(3 [pid 5890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5889] write(1, "executing program\n", 18 [pid 5890] <... prctl resumed>) = 0 [pid 5889] <... write resumed>) = 18 [pid 5890] setpgid(0, 0 [pid 5889] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... close resumed>) = 0 [pid 5890] <... setpgid resumed>) = 0 [pid 5889] <... futex resumed>) = 0 [pid 5889] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5889] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5891 attached [pid 5890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5889] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd142e81000 [pid 5891] set_robust_list(0x55558bca66a0, 24 [pid 5890] <... openat resumed>) = 3 [pid 5889] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE [pid 5891] <... set_robust_list resumed>) = 0 [pid 5890] write(3, "1000", 4 [pid 5889] <... mprotect resumed>) = 0 [pid 5891] chdir("./1" [pid 5890] <... write resumed>) = 4 [pid 5889] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5834] <... clone resumed>, child_tidptr=0x55558bca6690) = 5891 [pid 5890] close(3 [pid 5889] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5890] <... close resumed>) = 0 [pid 5889] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0} [pid 5890] symlink("/dev/binderfs", "./binderfs" [pid 5891] <... chdir resumed>) = 0 [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5892 attached ) = 0 [pid 5890] <... symlink resumed>) = 0 [pid 5889] <... clone3 resumed> => {parent_tid=[5892]}, 88) = 5892 executing program [pid 5891] setpgid(0, 0 [pid 5889] rt_sigprocmask(SIG_SETMASK, [], [pid 5890] write(1, "executing program\n", 18 [pid 5889] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5890] <... write resumed>) = 18 [pid 5889] futex(0x7fd142f786a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5891] <... setpgid resumed>) = 0 [pid 5889] <... futex resumed>) = 0 [pid 5892] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053 [pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5890] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] futex(0x7fd142f786ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5890] <... futex resumed>) = 0 [pid 5892] <... rseq resumed>) = 0 [pid 5891] <... openat resumed>) = 3 [pid 5890] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, [pid 5892] set_robust_list(0x7fd142ea19a0, 24 [pid 5891] write(3, "1000", 4 [pid 5890] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5892] <... set_robust_list resumed>) = 0 [pid 5891] <... write resumed>) = 4 [pid 5890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5892] rt_sigprocmask(SIG_SETMASK, [], [pid 5891] close(3 [pid 5890] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5892] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5891] <... close resumed>) = 0 [pid 5890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5892] memfd_create("syzkaller", 0 [pid 5891] symlink("/dev/binderfs", "./binderfs" [pid 5890] <... mmap resumed>) = 0x7fd142e81000 [pid 5892] <... memfd_create resumed>) = 3 [pid 5891] <... symlink resumed>) = 0 [pid 5890] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITEexecuting program [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5891] write(1, "executing program\n", 18 [pid 5890] <... mprotect resumed>) = 0 [pid 5891] <... write resumed>) = 18 [pid 5892] <... mmap resumed>) = 0x7fd13aa00000 [pid 5891] futex(0x7fd142f786ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0} [pid 5891] <... futex resumed>) = 0 [pid 5891] rt_sigaction(SIGRT_1, {sa_handler=0x7fd142f110e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd142f02290}, ./strace-static-x86_64: Process 5893 attached NULL, 8) = 0 [pid 5891] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5891] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd142e81000 [pid 5891] mprotect(0x7fd142e82000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5893] rseq(0x7fd142ea1fe0, 0x20, 0, 0x53053053 [pid 5891] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5893] <... rseq resumed>) = 0 [pid 5893] set_robust_list(0x7fd142ea19a0, 24) = 0 [pid 5893] rt_sigprocmask(SIG_SETMASK, [], [pid 5891] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5893] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5891] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd142ea1990, parent_tid=0x7fd142ea1990, exit_signal=0, stack=0x7fd142e81000, stack_size=0x20300, tls=0x7fd142ea16c0}./strace-static-x86_64: Process 5894 attached [pid 5893] futex(0x7fd142f786a8, FUTEX_WAIT_PRIVATE, 0, NULL