./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor435622388 <...> Warning: Permanently added '10.128.10.18' (ECDSA) to the list of known hosts. execve("./syz-executor435622388", ["./syz-executor435622388"], 0x7ffe4cb36f70 /* 10 vars */) = 0 brk(NULL) = 0x555556e9d000 brk(0x555556e9dc40) = 0x555556e9dc40 arch_prctl(ARCH_SET_FS, 0x555556e9d300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556e9d5d0) = 5066 set_robust_list(0x555556e9d5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7fce6b254770, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fce6b254e40}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fce6b254810, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fce6b254e40}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor435622388", 4096) = 27 brk(0x555556ebec40) = 0x555556ebec40 brk(0x555556ebf000) = 0x555556ebf000 mprotect(0x7fce6b316000, 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 getpid() = 5066 mkdir("./syzkaller.KxslOh", 0700) = 0 chmod("./syzkaller.KxslOh", 0777) = 0 chdir("./syzkaller.KxslOh") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5067 ./strace-static-x86_64: Process 5067 attached [pid 5067] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5067] chdir("./0") = 0 [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setpgid(0, 0) = 0 [pid 5067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1000", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5067] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5067] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5067] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5069], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5069 [pid 5067] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5069 attached [pid 5069] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5069] memfd_create("syzkaller", 0) = 3 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5069] munmap(0x7fce62e23000, 524288) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5069] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5069] close(3) = 0 [pid 5069] mkdir("./bus", 0777) = 0 [pid 5069] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5069] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5069] chdir("./bus") = 0 [pid 5069] ioctl(4, LOOP_CLR_FD) = 0 [pid 5069] close(4) = 0 [pid 5069] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5067] <... futex resumed>) = 0 [pid 5069] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] <... futex resumed>) = 0 [pid 5069] unlink("./file2" [pid 5067] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] <... unlink resumed>) = 0 [pid 5069] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = 0 [pid 5067] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5067] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5067] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5070 attached , parent_tid=[5070], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5070 [pid 5070] set_robust_list(0x7fce62ea29e0, 24 [pid 5067] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5070] <... set_robust_list resumed>) = 0 [pid 5069] <... futex resumed>) = 1 [pid 5070] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5069] mkdir(".", 0777) = -1 EEXIST (File exists) syzkaller login: [ 52.881000][ T5069] loop0: detected capacity change from 0 to 1024 [pid 5069] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5070] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = 0 [pid 5070] <... futex resumed>) = 1 [pid 5070] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5069] <... mount resumed>) = 0 [pid 5069] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5069] chdir(".") = 0 [pid 5069] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] exit_group(0) = ? [pid 5069] <... futex resumed>) = ? [pid 5069] +++ exited with 0 +++ [pid 5070] <... futex resumed>) = ? [pid 5070] +++ exited with 0 +++ [pid 5067] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5067, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./0/binderfs") = 0 umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./0/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./0/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5071 attached , child_tidptr=0x555556e9d5d0) = 5071 [pid 5071] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5071] chdir("./1") = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setpgid(0, 0) = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1000", 4) = 4 [ 52.931451][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5071] close(3) = 0 [pid 5071] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5071] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5071] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5071] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5072 attached [pid 5072] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5072] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] <... clone resumed>, parent_tid=[5072], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5072 [pid 5071] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 0 [pid 5071] <... futex resumed>) = 1 [pid 5072] memfd_create("syzkaller", 0) = 3 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5071] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5072] munmap(0x7fce62e23000, 524288) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5072] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5072] close(3) = 0 [pid 5072] mkdir("./bus", 0777) = 0 [pid 5072] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5072] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5072] chdir("./bus") = 0 [pid 5072] ioctl(4, LOOP_CLR_FD) = 0 [pid 5072] close(4) = 0 [pid 5072] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5071] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] unlink("./file2") = 0 [pid 5072] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] <... futex resumed>) = 0 [pid 5071] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5071] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5072] <... futex resumed>) = 0 [pid 5071] <... mmap resumed>) = 0x7fce62e82000 [pid 5071] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5071] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5072] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5071] <... clone resumed>, parent_tid=[5073], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5073 ./strace-static-x86_64: Process 5073 attached [pid 5071] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] set_robust_list(0x7fce62ea29e0, 24 [pid 5071] <... futex resumed>) = 0 [pid 5073] <... set_robust_list resumed>) = 0 [pid 5071] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [ 53.008986][ T5072] loop0: detected capacity change from 0 to 1024 [pid 5072] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5073] <... openat resumed>) = -1 EEXIST (File exists) [pid 5073] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5073] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] <... mount resumed>) = 0 [pid 5072] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5072] chdir(".") = 0 [pid 5072] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5071] exit_group(0) = ? [pid 5073] <... futex resumed>) = ? [pid 5072] <... futex resumed>) = ? [pid 5073] +++ exited with 0 +++ [pid 5072] +++ exited with 0 +++ [pid 5071] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1/binderfs") = 0 umount2("./1/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1") = 0 mkdir("./2", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5074 ./strace-static-x86_64: Process 5074 attached [pid 5074] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5074] chdir("./2") = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] setpgid(0, 0) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5074] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5074] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5075], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5075 [pid 5074] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5075 attached [pid 5075] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5075] memfd_create("syzkaller", 0) = 3 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 53.051623][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5075] munmap(0x7fce62e23000, 524288) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5075] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5075] close(3) = 0 [pid 5075] mkdir("./bus", 0777) = 0 [pid 5075] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5075] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5075] chdir("./bus") = 0 [pid 5075] ioctl(4, LOOP_CLR_FD) = 0 [pid 5075] close(4) = 0 [pid 5075] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 1 [pid 5075] unlink("./file2") = 0 [pid 5075] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5074] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5076], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5076 [pid 5074] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5076 attached ) = 0 [pid 5076] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5074] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 1 [pid 5075] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5075] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5076] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5076] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] <... futex resumed>) = 0 [pid 5075] <... mount resumed>) = 0 [pid 5075] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5075] chdir(".") = 0 [pid 5075] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5075] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] exit_group(0 [pid 5076] <... futex resumed>) = ? [pid 5074] <... exit_group resumed>) = ? [pid 5076] +++ exited with 0 +++ [pid 5075] <... futex resumed>) = ? [pid 5075] +++ exited with 0 +++ [pid 5074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./2/binderfs") = 0 umount2("./2/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./2/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./2/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./2/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./2/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./2") = 0 mkdir("./3", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5077 ./strace-static-x86_64: Process 5077 attached [pid 5077] set_robust_list(0x555556e9d5e0, 24) = 0 [ 53.118096][ T5075] loop0: detected capacity change from 0 to 1024 [ 53.155097][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5077] chdir("./3") = 0 [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5077] setpgid(0, 0) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "1000", 4) = 4 [pid 5077] close(3) = 0 [pid 5077] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5077] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5077] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5077] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5078 attached , parent_tid=[5078], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5078 [pid 5078] set_robust_list(0x7fce6b2439e0, 24 [pid 5077] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... set_robust_list resumed>) = 0 [pid 5078] memfd_create("syzkaller", 0) = 3 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5078] munmap(0x7fce62e23000, 524288) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5078] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5078] close(3) = 0 [pid 5078] mkdir("./bus", 0777) = 0 [pid 5078] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5078] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5078] chdir("./bus") = 0 [pid 5078] ioctl(4, LOOP_CLR_FD) = 0 [pid 5078] close(4) = 0 [pid 5078] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... futex resumed>) = 0 [pid 5077] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... futex resumed>) = 1 [pid 5078] unlink("./file2") = 0 [pid 5078] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... futex resumed>) = 0 [pid 5077] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5077] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5077] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5079], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5079 [pid 5077] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... futex resumed>) = 1 [pid 5078] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5078] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5079 attached [pid 5079] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5079] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5078] <... mount resumed>) = 0 [pid 5078] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5078] chdir(".") = 0 [pid 5078] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... openat resumed>) = -1 EEXIST (File exists) [pid 5079] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... futex resumed>) = 0 [pid 5077] exit_group(0) = ? [pid 5078] <... futex resumed>) = ? [pid 5078] +++ exited with 0 +++ [pid 5079] <... futex resumed>) = ? [pid 5079] +++ exited with 0 +++ [pid 5077] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./3/binderfs") = 0 umount2("./3/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./3/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./3/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./3/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./3/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./3") = 0 mkdir("./4", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5080 ./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5080] chdir("./4") = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setpgid(0, 0) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1000", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 53.218358][ T5078] loop0: detected capacity change from 0 to 1024 [ 53.245566][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5080] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5080] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5081 attached [pid 5081] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5081] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] <... clone resumed>, parent_tid=[5081], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5081 [pid 5080] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5080] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5081] memfd_create("syzkaller", 0) = 3 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5081] munmap(0x7fce62e23000, 524288) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5081] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5081] close(3) = 0 [pid 5081] mkdir("./bus", 0777) = 0 [pid 5081] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5081] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5081] chdir("./bus") = 0 [pid 5081] ioctl(4, LOOP_CLR_FD) = 0 [pid 5081] close(4) = 0 [pid 5081] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5081] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5080] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 0 [pid 5081] unlink("./file2") = 0 [pid 5081] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5080] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5080] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5082], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5082 [pid 5080] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5081] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5082 attached [pid 5082] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5082] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5082] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5082] <... futex resumed>) = 1 [pid 5082] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5081] <... mount resumed>) = 0 [pid 5081] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5081] chdir(".") = 0 [pid 5081] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] exit_group(0) = ? [pid 5081] <... futex resumed>) = ? [pid 5081] +++ exited with 0 +++ [pid 5082] <... futex resumed>) = ? [pid 5082] +++ exited with 0 +++ [pid 5080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./4/binderfs") = 0 umount2("./4/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./4/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./4/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./4/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./4/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./4") = 0 mkdir("./5", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5083 ./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5083] chdir("./5") = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5083] setpgid(0, 0) = 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 53.316009][ T5081] loop0: detected capacity change from 0 to 1024 [ 53.343543][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5083] write(3, "1000", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5083] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5083] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5083] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5084 attached , parent_tid=[5084], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5084 [pid 5084] set_robust_list(0x7fce6b2439e0, 24 [pid 5083] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5083] <... futex resumed>) = 0 [pid 5083] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5084] memfd_create("syzkaller", 0) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5084] munmap(0x7fce62e23000, 524288) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5084] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5084] close(3) = 0 [pid 5084] mkdir("./bus", 0777) = 0 [pid 5084] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5084] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5084] chdir("./bus") = 0 [pid 5084] ioctl(4, LOOP_CLR_FD) = 0 [pid 5084] close(4) = 0 [pid 5084] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = 0 [pid 5083] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5083] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] <... futex resumed>) = 1 [pid 5084] unlink("./file2") = 0 [pid 5084] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = 0 [pid 5083] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5083] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5083] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5083] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5085], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5085 [pid 5083] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5083] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5084] <... futex resumed>) = 1 [pid 5084] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5084] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5085 attached [pid 5085] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5085] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5085] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = 0 [pid 5085] <... futex resumed>) = 1 [pid 5085] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] <... mount resumed>) = 0 [pid 5084] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5084] chdir(".") = 0 [pid 5084] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5083] exit_group(0) = ? [pid 5084] <... futex resumed>) = ? [pid 5084] +++ exited with 0 +++ [pid 5085] <... futex resumed>) = ? [pid 5085] +++ exited with 0 +++ [pid 5083] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./5/binderfs") = 0 umount2("./5/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./5/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./5/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./5/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./5/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./5") = 0 mkdir("./6", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5086 ./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5086] chdir("./6") = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [ 53.417002][ T5084] loop0: detected capacity change from 0 to 1024 [ 53.452120][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5086] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5086] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5086] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5087], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5087 [pid 5086] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5087 attached [pid 5087] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5087] memfd_create("syzkaller", 0) = 3 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5087] munmap(0x7fce62e23000, 524288) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5087] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5087] close(3) = 0 [pid 5087] mkdir("./bus", 0777) = 0 [pid 5087] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5087] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5087] chdir("./bus") = 0 [pid 5087] ioctl(4, LOOP_CLR_FD) = 0 [pid 5087] close(4) = 0 [pid 5087] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5087] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] <... futex resumed>) = 0 [pid 5087] unlink("./file2" [pid 5086] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... unlink resumed>) = 0 [pid 5087] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5087] <... futex resumed>) = 1 [pid 5086] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] mkdir(".", 0777 [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5086] <... futex resumed>) = 0 [pid 5087] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5086] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5086] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5088], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5088 [pid 5086] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5088 attached [pid 5088] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5088] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5088] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5088] <... futex resumed>) = 1 [pid 5088] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] <... mount resumed>) = 0 [pid 5087] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5087] chdir(".") = 0 [pid 5087] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5087] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] exit_group(0 [pid 5087] <... futex resumed>) = ? [pid 5086] <... exit_group resumed>) = ? [pid 5087] +++ exited with 0 +++ [pid 5088] <... futex resumed>) = ? [pid 5088] +++ exited with 0 +++ [pid 5086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./6/binderfs") = 0 umount2("./6/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./6/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./6/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./6/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./6/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./6") = 0 mkdir("./7", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 53.512870][ T5087] loop0: detected capacity change from 0 to 1024 [ 53.552549][ T2393] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5089 ./strace-static-x86_64: Process 5089 attached [pid 5089] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5089] chdir("./7") = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] setpgid(0, 0) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] write(3, "1000", 4) = 4 [pid 5089] close(3) = 0 [pid 5089] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5089] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5089] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5089] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5090], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5090 [pid 5089] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5090 attached [pid 5090] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5090] memfd_create("syzkaller", 0) = 3 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5090] munmap(0x7fce62e23000, 524288) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5090] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5090] close(3) = 0 [pid 5090] mkdir("./bus", 0777) = 0 [pid 5090] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5090] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5090] chdir("./bus") = 0 [pid 5090] ioctl(4, LOOP_CLR_FD) = 0 [pid 5090] close(4) = 0 [pid 5090] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = 0 [pid 5090] <... futex resumed>) = 1 [pid 5089] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] unlink("./file2" [pid 5089] <... futex resumed>) = 0 [pid 5089] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... unlink resumed>) = 0 [pid 5090] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] <... futex resumed>) = 0 [pid 5090] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5089] <... futex resumed>) = 0 [pid 5090] mkdir(".", 0777 [pid 5089] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5090] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5089] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5090] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5089] <... mprotect resumed>) = 0 [pid 5089] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5091], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5091 ./strace-static-x86_64: Process 5091 attached [pid 5089] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] set_robust_list(0x7fce62ea29e0, 24 [pid 5089] <... futex resumed>) = 0 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5089] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5090] <... mount resumed>) = 0 [pid 5091] <... openat resumed>) = -1 EEXIST (File exists) [pid 5090] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5091] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... openat resumed>) = 4 [pid 5089] <... futex resumed>) = 0 [pid 5090] chdir("." [pid 5091] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] <... chdir resumed>) = 0 [pid 5090] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5089] exit_group(0) = ? [pid 5091] <... futex resumed>) = ? [pid 5090] <... futex resumed>) = ? [pid 5090] +++ exited with 0 +++ [pid 5091] +++ exited with 0 +++ [pid 5089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./7/binderfs") = 0 umount2("./7/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./7/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./7/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./7/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./7/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./7") = 0 mkdir("./8", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5092 ./strace-static-x86_64: Process 5092 attached [pid 5092] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5092] chdir("./8") = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5092] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5092] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5092] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5093], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5093 [pid 5092] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5093 attached [pid 5093] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5093] memfd_create("syzkaller", 0) = 3 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 53.613886][ T5090] loop0: detected capacity change from 0 to 1024 [ 53.639493][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5093] munmap(0x7fce62e23000, 524288) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5093] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5093] close(3) = 0 [pid 5093] mkdir("./bus", 0777) = 0 [pid 5093] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5093] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5093] chdir("./bus") = 0 [pid 5093] ioctl(4, LOOP_CLR_FD) = 0 [pid 5093] close(4) = 0 [pid 5093] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5093] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5092] <... futex resumed>) = 0 [pid 5093] unlink("./file2" [pid 5092] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] <... unlink resumed>) = 0 [pid 5093] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5093] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5092] <... futex resumed>) = 0 [pid 5093] mkdir(".", 0777 [pid 5092] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5092] <... futex resumed>) = 0 [pid 5093] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [ 53.696849][ T5093] loop0: detected capacity change from 0 to 1024 [ 53.703730][ T5068] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [pid 5092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5092] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5092] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5094], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5094 [pid 5092] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5094 attached [pid 5094] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5094] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5094] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = 0 [pid 5094] <... futex resumed>) = 1 [pid 5094] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5093] <... mount resumed>) = 0 [pid 5093] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5093] chdir(".") = 0 [pid 5093] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5093] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] exit_group(0 [pid 5093] <... futex resumed>) = ? [pid 5092] <... exit_group resumed>) = ? [pid 5093] +++ exited with 0 +++ [pid 5094] <... futex resumed>) = ? [pid 5094] +++ exited with 0 +++ [pid 5092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./8/binderfs") = 0 umount2("./8/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./8/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./8/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./8/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./8/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./8") = 0 mkdir("./9", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5095 ./strace-static-x86_64: Process 5095 attached [pid 5095] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5095] chdir("./9") = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5095] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5095] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 53.739353][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5095] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5095] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5096 attached [pid 5096] set_robust_list(0x7fce6b2439e0, 24 [pid 5095] <... clone resumed>, parent_tid=[5096], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5096 [pid 5096] <... set_robust_list resumed>) = 0 [pid 5095] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5095] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5096] memfd_create("syzkaller", 0) = 3 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5096] munmap(0x7fce62e23000, 524288) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5096] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5096] close(3) = 0 [pid 5096] mkdir("./bus", 0777) = 0 [pid 5096] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5096] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5096] chdir("./bus") = 0 [pid 5096] ioctl(4, LOOP_CLR_FD) = 0 [pid 5096] close(4) = 0 [pid 5096] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5095] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5095] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... futex resumed>) = 1 [pid 5096] unlink("./file2") = 0 [pid 5096] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5095] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5095] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5095] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5095] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5097], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5097 [pid 5095] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5095] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5096] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5097 attached [pid 5096] mkdir(".", 0777 [pid 5097] set_robust_list(0x7fce62ea29e0, 24 [pid 5096] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5097] <... set_robust_list resumed>) = 0 [pid 5097] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5096] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5097] <... openat resumed>) = -1 EEXIST (File exists) [pid 5097] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5097] <... futex resumed>) = 1 [pid 5097] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] <... mount resumed>) = 0 [pid 5096] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5096] chdir(".") = 0 [pid 5096] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5096] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5095] exit_group(0 [pid 5096] <... futex resumed>) = ? [pid 5095] <... exit_group resumed>) = ? [pid 5097] <... futex resumed>) = ? [pid 5096] +++ exited with 0 +++ [pid 5097] +++ exited with 0 +++ [pid 5095] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./9/binderfs") = 0 umount2("./9/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./9/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./9/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./9/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./9/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./9") = 0 mkdir("./10", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5098 ./strace-static-x86_64: Process 5098 attached [pid 5098] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5098] chdir("./10") = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [ 53.816036][ T5096] loop0: detected capacity change from 0 to 1024 [ 53.853644][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5098] close(3) = 0 [pid 5098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5098] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5098] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5098] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5099 attached [pid 5099] set_robust_list(0x7fce6b2439e0, 24 [pid 5098] <... clone resumed>, parent_tid=[5099], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5098] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5098] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5099] memfd_create("syzkaller", 0) = 3 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5099] munmap(0x7fce62e23000, 524288) = 0 [pid 5099] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5099] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5099] close(3) = 0 [pid 5099] mkdir("./bus", 0777) = 0 [pid 5099] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5099] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5099] chdir("./bus") = 0 [pid 5099] ioctl(4, LOOP_CLR_FD) = 0 [pid 5099] close(4) = 0 [pid 5099] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] <... futex resumed>) = 0 [pid 5098] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] unlink("./file2" [pid 5098] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] <... unlink resumed>) = 0 [pid 5099] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] <... futex resumed>) = 0 [pid 5098] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5098] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5098] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5100 attached , parent_tid=[5100], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5100 [pid 5100] set_robust_list(0x7fce62ea29e0, 24 [pid 5098] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5098] <... futex resumed>) = 0 [pid 5100] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5098] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... openat resumed>) = -1 EEXIST (File exists) [pid 5100] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5100] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] <... futex resumed>) = 0 [pid 5099] mkdir(".", 0777) = -1 EEXIST (File exists) [ 53.917857][ T5099] loop0: detected capacity change from 0 to 1024 [pid 5099] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5099] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5099] chdir(".") = 0 [pid 5099] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] exit_group(0) = ? [pid 5099] <... futex resumed>) = ? [pid 5099] +++ exited with 0 +++ [pid 5100] <... futex resumed>) = ? [pid 5100] +++ exited with 0 +++ [pid 5098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./10/binderfs") = 0 umount2("./10/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./10/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./10/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./10/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./10/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./10") = 0 mkdir("./11", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5101 ./strace-static-x86_64: Process 5101 attached [pid 5101] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5101] chdir("./11") = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] setpgid(0, 0) = 0 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5101] write(3, "1000", 4) = 4 [pid 5101] close(3) = 0 [pid 5101] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5101] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5101] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5101] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5102 attached , parent_tid=[5102], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5102 [pid 5101] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] set_robust_list(0x7fce6b2439e0, 24 [pid 5101] <... futex resumed>) = 0 [pid 5102] <... set_robust_list resumed>) = 0 [pid 5101] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5102] memfd_create("syzkaller", 0) = 3 [ 53.960036][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5102] munmap(0x7fce62e23000, 524288) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5102] close(3) = 0 [pid 5102] mkdir("./bus", 0777) = 0 [pid 5102] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5102] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5102] chdir("./bus") = 0 [pid 5102] ioctl(4, LOOP_CLR_FD) = 0 [pid 5102] close(4) = 0 [pid 5102] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... futex resumed>) = 1 [pid 5102] unlink("./file2") = 0 [pid 5102] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5101] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5101] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5103], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5103 [pid 5101] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... futex resumed>) = 1 [pid 5102] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5102] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5103 attached [pid 5103] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5103] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5103] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 1 [pid 5103] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] <... mount resumed>) = 0 [pid 5102] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5102] chdir(".") = 0 [pid 5102] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5102] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] exit_group(0) = ? [pid 5102] <... futex resumed>) = ? [pid 5102] +++ exited with 0 +++ [pid 5103] <... futex resumed>) = ? [pid 5103] +++ exited with 0 +++ [pid 5101] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./11/binderfs") = 0 umount2("./11/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./11/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./11/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./11/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./11/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./11") = 0 mkdir("./12", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5104 ./strace-static-x86_64: Process 5104 attached [pid 5104] set_robust_list(0x555556e9d5e0, 24) = 0 [ 54.029261][ T5102] loop0: detected capacity change from 0 to 1024 [ 54.053298][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5104] chdir("./12") = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5104] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5104] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5104] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5105 attached , parent_tid=[5105], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5105 [pid 5104] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5104] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5105] memfd_create("syzkaller", 0) = 3 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5105] munmap(0x7fce62e23000, 524288) = 0 [pid 5105] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5105] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5105] close(3) = 0 [pid 5105] mkdir("./bus", 0777) = 0 [pid 5105] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5105] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5105] chdir("./bus") = 0 [pid 5105] ioctl(4, LOOP_CLR_FD) = 0 [pid 5105] close(4) = 0 [pid 5105] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 0 [pid 5104] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... futex resumed>) = 1 [pid 5105] unlink("./file2") = 0 [pid 5105] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 0 [pid 5104] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5104] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5104] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5106], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5106 [pid 5104] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5105] <... futex resumed>) = 1 [pid 5105] mkdir(".", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 5106 attached [pid 5105] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5106] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5106] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5106] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5106] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] <... mount resumed>) = 0 [pid 5105] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5105] chdir(".") = 0 [pid 5105] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] exit_group(0) = ? [pid 5105] +++ exited with 0 +++ [pid 5106] <... futex resumed>) = ? [pid 5106] +++ exited with 0 +++ [pid 5104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./12/binderfs") = 0 umount2("./12/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./12/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./12/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./12/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./12/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./12") = 0 mkdir("./13", 0777) = 0 [ 54.136487][ T5105] loop0: detected capacity change from 0 to 1024 [ 54.174493][ T2393] hfsplus: b-tree write err: -5, ino 4 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5107 ./strace-static-x86_64: Process 5107 attached [pid 5107] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5107] chdir("./13") = 0 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5107] setpgid(0, 0) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5107] write(3, "1000", 4) = 4 [pid 5107] close(3) = 0 [pid 5107] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5107] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5107] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5107] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5108], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5108 [pid 5107] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5108 attached [pid 5108] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5108] memfd_create("syzkaller", 0) = 3 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5108] munmap(0x7fce62e23000, 524288) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5108] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5108] close(3) = 0 [pid 5108] mkdir("./bus", 0777) = 0 [pid 5108] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5108] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5108] chdir("./bus") = 0 [pid 5108] ioctl(4, LOOP_CLR_FD) = 0 [pid 5108] close(4) = 0 [pid 5108] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] <... futex resumed>) = 1 [pid 5108] unlink("./file2") = 0 [pid 5108] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5108] <... futex resumed>) = 1 [pid 5107] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5108] mkdir(".", 0777 [pid 5107] <... mprotect resumed>) = 0 [pid 5108] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5107] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5109 attached [pid 5108] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5109] set_robust_list(0x7fce62ea29e0, 24 [pid 5107] <... clone resumed>, parent_tid=[5109], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5109 [pid 5107] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... set_robust_list resumed>) = 0 [pid 5109] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5109] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5107] <... futex resumed>) = 0 [pid 5109] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] <... mount resumed>) = 0 [pid 5108] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5108] chdir(".") = 0 [pid 5108] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5107] exit_group(0 [pid 5109] <... futex resumed>) = ? [pid 5108] <... futex resumed>) = ? [pid 5107] <... exit_group resumed>) = ? [pid 5109] +++ exited with 0 +++ [pid 5108] +++ exited with 0 +++ [pid 5107] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./13/binderfs") = 0 umount2("./13/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./13/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./13/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./13/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./13/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./13") = 0 mkdir("./14", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5110 ./strace-static-x86_64: Process 5110 attached [pid 5110] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5110] chdir("./14") = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] setpgid(0, 0) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5110] write(3, "1000", 4) = 4 [pid 5110] close(3) = 0 [pid 5110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5110] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 54.249162][ T5108] loop0: detected capacity change from 0 to 1024 [ 54.288179][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5110] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5110] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5111], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5111 [pid 5110] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5111 attached [pid 5111] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5111] memfd_create("syzkaller", 0) = 3 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5111] munmap(0x7fce62e23000, 524288) = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5111] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5111] close(3) = 0 [pid 5111] mkdir("./bus", 0777) = 0 [pid 5111] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5111] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5111] chdir("./bus") = 0 [pid 5111] ioctl(4, LOOP_CLR_FD) = 0 [pid 5111] close(4) = 0 [pid 5111] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5110] <... futex resumed>) = 0 [pid 5111] unlink("./file2" [pid 5110] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] <... unlink resumed>) = 0 [pid 5111] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5110] <... futex resumed>) = 0 [pid 5111] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5110] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5110] <... futex resumed>) = 0 [pid 5111] mkdir(".", 0777 [pid 5110] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5110] <... futex resumed>) = 0 [pid 5111] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5111] <... mount resumed>) = 0 [pid 5110] <... mmap resumed>) = 0x7fce62e82000 [pid 5111] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5110] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5111] <... openat resumed>) = 4 [pid 5110] <... mprotect resumed>) = 0 [pid 5111] chdir("." [pid 5110] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5111] <... chdir resumed>) = 0 [pid 5111] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... clone resumed>, parent_tid=[5112], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5112 [pid 5111] <... futex resumed>) = 0 [pid 5110] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5112 attached [pid 5111] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5110] <... futex resumed>) = 0 [pid 5110] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5112] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5112] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5110] <... futex resumed>) = 0 [pid 5112] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5110] exit_group(0 [pid 5112] <... futex resumed>) = ? [pid 5110] <... exit_group resumed>) = ? [pid 5111] <... futex resumed>) = ? [pid 5112] +++ exited with 0 +++ [pid 5111] +++ exited with 0 +++ [pid 5110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./14/binderfs") = 0 umount2("./14/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./14/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./14/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./14/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./14/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./14") = 0 mkdir("./15", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5113 ./strace-static-x86_64: Process 5113 attached [pid 5113] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5113] chdir("./15") = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5113] setpgid(0, 0) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5113] write(3, "1000", 4) = 4 [pid 5113] close(3) = 0 [pid 5113] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5113] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5113] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5113] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5114], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5114 [pid 5113] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5114 attached [ 54.339696][ T5111] loop0: detected capacity change from 0 to 1024 [ 54.363385][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5114] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5114] memfd_create("syzkaller", 0) = 3 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5114] munmap(0x7fce62e23000, 524288) = 0 [pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5114] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5114] close(3) = 0 [pid 5114] mkdir("./bus", 0777) = 0 [pid 5114] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5114] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5114] chdir("./bus") = 0 [pid 5114] ioctl(4, LOOP_CLR_FD) = 0 [pid 5114] close(4) = 0 [pid 5114] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] unlink("./file2") = 0 [pid 5114] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5114] mkdir(".", 0777 [pid 5113] <... mmap resumed>) = 0x7fce62e82000 [pid 5113] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5114] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5113] <... mprotect resumed>) = 0 [pid 5113] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5114] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5115 attached [pid 5115] set_robust_list(0x7fce62ea29e0, 24 [pid 5113] <... clone resumed>, parent_tid=[5115], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5115 [pid 5115] <... set_robust_list resumed>) = 0 [pid 5113] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5113] <... futex resumed>) = 0 [pid 5115] <... openat resumed>) = -1 EEXIST (File exists) [pid 5113] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] <... mount resumed>) = 0 [pid 5114] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5114] chdir(".") = 0 [pid 5114] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5114] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] exit_group(0 [pid 5114] <... futex resumed>) = ? [pid 5113] <... exit_group resumed>) = ? [pid 5115] <... futex resumed>) = ? [pid 5114] +++ exited with 0 +++ [pid 5115] +++ exited with 0 +++ [pid 5113] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./15/binderfs") = 0 umount2("./15/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./15/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./15/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./15/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./15/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./15") = 0 mkdir("./16", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 54.433794][ T5114] loop0: detected capacity change from 0 to 1024 [ 54.472636][ T2393] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5116 ./strace-static-x86_64: Process 5116 attached [pid 5116] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5116] chdir("./16") = 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5116] setpgid(0, 0) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] write(3, "1000", 4) = 4 [pid 5116] close(3) = 0 [pid 5116] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5116] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5116] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5116] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5117 attached , parent_tid=[5117], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5117 [pid 5117] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5116] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5116] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5117] memfd_create("syzkaller", 0) = 3 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5117] munmap(0x7fce62e23000, 524288) = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5117] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5117] close(3) = 0 [pid 5117] mkdir("./bus", 0777) = 0 [pid 5117] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5117] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5117] chdir("./bus") = 0 [pid 5117] ioctl(4, LOOP_CLR_FD) = 0 [pid 5117] close(4) = 0 [pid 5117] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... futex resumed>) = 0 [pid 5116] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5116] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5117] <... futex resumed>) = 1 [pid 5117] unlink("./file2") = 0 [pid 5117] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... futex resumed>) = 0 [pid 5117] <... futex resumed>) = 1 [pid 5116] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] mkdir(".", 0777 [pid 5116] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5117] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5116] <... mmap resumed>) = 0x7fce62e82000 [pid 5116] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5116] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5118], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5118 ./strace-static-x86_64: Process 5118 attached [pid 5118] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5118] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5118] <... futex resumed>) = 0 [pid 5118] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5116] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5116] <... futex resumed>) = 0 [pid 5118] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] <... mount resumed>) = 0 [pid 5117] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5117] chdir(".") = 0 [pid 5117] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] exit_group(0 [pid 5118] <... futex resumed>) = ? [pid 5117] <... futex resumed>) = ? [pid 5116] <... exit_group resumed>) = ? [pid 5118] +++ exited with 0 +++ [pid 5117] +++ exited with 0 +++ [pid 5116] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./16/binderfs") = 0 umount2("./16/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./16/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./16/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./16/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./16/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./16/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./16") = 0 mkdir("./17", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5119 ./strace-static-x86_64: Process 5119 attached [pid 5119] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5119] chdir("./17") = 0 [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5119] setpgid(0, 0) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5119] write(3, "1000", 4) = 4 [pid 5119] close(3) = 0 [pid 5119] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5119] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5119] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5119] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5120], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5120 [pid 5119] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5120 attached [pid 5120] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5120] memfd_create("syzkaller", 0) = 3 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 54.532511][ T5117] loop0: detected capacity change from 0 to 1024 [ 54.564645][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5120] munmap(0x7fce62e23000, 524288) = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5120] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5120] close(3) = 0 [pid 5120] mkdir("./bus", 0777) = 0 [pid 5120] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5120] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5120] chdir("./bus") = 0 [pid 5120] ioctl(4, LOOP_CLR_FD) = 0 [pid 5120] close(4) = 0 [pid 5120] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... futex resumed>) = 1 [pid 5120] unlink("./file2") = 0 [pid 5120] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5119] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5119] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5121], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5121 [pid 5119] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... futex resumed>) = 1 [pid 5120] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5120] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5121 attached ) = 0 [pid 5120] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5120] chdir(".") = 0 [pid 5120] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5120] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5121] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5121] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5119] <... futex resumed>) = 0 [pid 5119] exit_group(0 [pid 5120] <... futex resumed>) = ? [pid 5119] <... exit_group resumed>) = ? [pid 5120] +++ exited with 0 +++ [pid 5121] +++ exited with 0 +++ [pid 5119] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./17/binderfs") = 0 umount2("./17/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./17/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./17/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./17/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./17/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17") = 0 mkdir("./18", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5122 ./strace-static-x86_64: Process 5122 attached [pid 5122] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5122] chdir("./18") = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] setpgid(0, 0) = 0 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5122] write(3, "1000", 4) = 4 [pid 5122] close(3) = 0 [pid 5122] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5122] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 54.619347][ T5120] loop0: detected capacity change from 0 to 1024 [ 54.645049][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5122] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5122] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5123], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5123 [pid 5122] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5122] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5123 attached [pid 5123] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5123] memfd_create("syzkaller", 0) = 3 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5123] munmap(0x7fce62e23000, 524288) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5123] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5123] close(3) = 0 [pid 5123] mkdir("./bus", 0777) = 0 [pid 5123] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5123] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5123] chdir("./bus") = 0 [pid 5123] ioctl(4, LOOP_CLR_FD) = 0 [pid 5123] close(4) = 0 [pid 5123] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5122] <... futex resumed>) = 0 [pid 5123] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5122] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5123] unlink("./file2") = 0 [pid 5123] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5122] <... futex resumed>) = 0 [pid 5123] mkdir(".", 0777 [pid 5122] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5122] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5122] <... futex resumed>) = 0 [pid 5123] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5122] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5122] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5124], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5124 ./strace-static-x86_64: Process 5124 attached [pid 5122] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5124] set_robust_list(0x7fce62ea29e0, 24 [pid 5122] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... set_robust_list resumed>) = 0 [pid 5124] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5123] <... mount resumed>) = 0 [pid 5123] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5123] chdir(".") = 0 [pid 5123] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] <... openat resumed>) = -1 EEXIST (File exists) [pid 5124] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... futex resumed>) = 0 [pid 5124] <... futex resumed>) = 1 [pid 5124] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] exit_group(0) = ? [pid 5124] <... futex resumed>) = ? [pid 5123] <... futex resumed>) = ? [pid 5124] +++ exited with 0 +++ [pid 5123] +++ exited with 0 +++ [pid 5122] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./18/binderfs") = 0 umount2("./18/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./18/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./18/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./18/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./18/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18") = 0 mkdir("./19", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5125 attached [pid 5125] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5066] <... clone resumed>, child_tidptr=0x555556e9d5d0) = 5125 [pid 5125] chdir("./19") = 0 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5125] setpgid(0, 0) = 0 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5125] write(3, "1000", 4) = 4 [pid 5125] close(3) = 0 [pid 5125] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5125] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5125] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5125] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5126], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5126 [pid 5125] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5126 attached [pid 5126] set_robust_list(0x7fce6b2439e0, 24) = 0 [ 54.727230][ T5123] loop0: detected capacity change from 0 to 1024 [ 54.755129][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5126] memfd_create("syzkaller", 0) = 3 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5126] munmap(0x7fce62e23000, 524288) = 0 [pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5126] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5126] close(3) = 0 [pid 5126] mkdir("./bus", 0777) = 0 [pid 5126] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5126] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5126] chdir("./bus") = 0 [pid 5126] ioctl(4, LOOP_CLR_FD) = 0 [pid 5126] close(4) = 0 [pid 5126] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5126] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] <... futex resumed>) = 0 [pid 5125] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = 1 [pid 5126] unlink("./file2" [pid 5125] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... unlink resumed>) = 0 [pid 5126] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5126] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5125] <... futex resumed>) = 0 [pid 5126] mkdir(".", 0777 [pid 5125] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5125] <... futex resumed>) = 0 [pid 5126] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [ 54.820371][ T5126] loop0: detected capacity change from 0 to 1024 [pid 5125] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5125] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5127], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5127 [pid 5125] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5127 attached [pid 5127] set_robust_list(0x7fce62ea29e0, 24 [pid 5126] <... mount resumed>) = 0 [pid 5127] <... set_robust_list resumed>) = 0 [pid 5126] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5127] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5126] <... openat resumed>) = 4 [pid 5127] <... openat resumed>) = -1 EEXIST (File exists) [pid 5126] chdir("." [pid 5127] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... chdir resumed>) = 0 [pid 5127] <... futex resumed>) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5127] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] exit_group(0 [pid 5126] <... futex resumed>) = 0 [pid 5127] <... futex resumed>) = ? [pid 5125] <... exit_group resumed>) = ? [pid 5126] +++ exited with 0 +++ [pid 5127] +++ exited with 0 +++ [pid 5125] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./19/binderfs") = 0 umount2("./19/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./19/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./19/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./19/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./19/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./19") = 0 mkdir("./20", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5128 ./strace-static-x86_64: Process 5128 attached [pid 5128] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5128] chdir("./20") = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5128] setpgid(0, 0) = 0 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5128] write(3, "1000", 4) = 4 [pid 5128] close(3) = 0 [pid 5128] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5128] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5128] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5128] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5129 attached [pid 5129] set_robust_list(0x7fce6b2439e0, 24 [pid 5128] <... clone resumed>, parent_tid=[5129], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5129 [ 54.861016][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5129] <... set_robust_list resumed>) = 0 [pid 5128] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5128] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5129] memfd_create("syzkaller", 0) = 3 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5129] munmap(0x7fce62e23000, 524288) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5129] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5129] close(3) = 0 [pid 5129] mkdir("./bus", 0777) = 0 [pid 5129] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5129] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5129] chdir("./bus") = 0 [pid 5129] ioctl(4, LOOP_CLR_FD) = 0 [pid 5129] close(4) = 0 [pid 5129] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5128] <... futex resumed>) = 0 [pid 5129] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5128] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] unlink("./file2" [pid 5128] <... futex resumed>) = 0 [pid 5128] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5129] <... unlink resumed>) = 0 [pid 5129] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5128] <... futex resumed>) = 0 [pid 5128] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] mkdir(".", 0777 [pid 5128] <... futex resumed>) = 0 [pid 5129] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5128] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5128] <... futex resumed>) = 0 [pid 5128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5128] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5128] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5130], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5130 [pid 5128] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5128] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5130 attached [pid 5130] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5130] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5130] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... futex resumed>) = 0 [pid 5130] <... futex resumed>) = 1 [pid 5130] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5129] <... mount resumed>) = 0 [pid 5129] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5129] chdir(".") = 0 [pid 5129] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] exit_group(0) = ? [pid 5130] <... futex resumed>) = ? [pid 5129] <... futex resumed>) = ? [pid 5130] +++ exited with 0 +++ [pid 5129] +++ exited with 0 +++ [pid 5128] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./20/binderfs") = 0 umount2("./20/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./20/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./20/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./20/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./20/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./20") = 0 mkdir("./21", 0777) = 0 [ 54.932854][ T5129] loop0: detected capacity change from 0 to 1024 [ 54.966086][ T2393] hfsplus: b-tree write err: -5, ino 4 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5131 ./strace-static-x86_64: Process 5131 attached [pid 5131] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5131] chdir("./21") = 0 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5131] setpgid(0, 0) = 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5131] write(3, "1000", 4) = 4 [pid 5131] close(3) = 0 [pid 5131] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5131] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5131] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5131] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5132 attached , parent_tid=[5132], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5132 [pid 5131] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5132] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5132] memfd_create("syzkaller", 0) = 3 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5132] munmap(0x7fce62e23000, 524288) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5132] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5132] close(3) = 0 [pid 5132] mkdir("./bus", 0777) = 0 [pid 5132] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5132] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5132] chdir("./bus") = 0 [pid 5132] ioctl(4, LOOP_CLR_FD) = 0 [pid 5132] close(4) = 0 [pid 5132] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] <... futex resumed>) = 1 [pid 5132] unlink("./file2") = 0 [pid 5132] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5131] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5132] <... futex resumed>) = 1 [pid 5131] <... mprotect resumed>) = 0 [pid 5131] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5132] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5132] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5131] <... clone resumed>, parent_tid=[5133], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5133 [pid 5131] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5133 attached [pid 5131] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5133] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5133] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5133] <... futex resumed>) = 1 [pid 5133] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] <... mount resumed>) = 0 [pid 5132] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5132] chdir(".") = 0 [pid 5132] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5132] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5131] exit_group(0) = ? [pid 5132] <... futex resumed>) = ? [pid 5133] <... futex resumed>) = ? [pid 5132] +++ exited with 0 +++ [pid 5133] +++ exited with 0 +++ [pid 5131] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./21/binderfs") = 0 umount2("./21/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./21/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./21/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./21/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./21/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./21") = 0 mkdir("./22", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 55.040015][ T5132] loop0: detected capacity change from 0 to 1024 [ 55.075123][ T2393] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5134 attached , child_tidptr=0x555556e9d5d0) = 5134 [pid 5134] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5134] chdir("./22") = 0 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5134] setpgid(0, 0) = 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] write(3, "1000", 4) = 4 [pid 5134] close(3) = 0 [pid 5134] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5134] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5134] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5134] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5135 attached , parent_tid=[5135], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5135 [pid 5135] set_robust_list(0x7fce6b2439e0, 24 [pid 5134] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5134] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5135] memfd_create("syzkaller", 0) = 3 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5135] munmap(0x7fce62e23000, 524288) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5135] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5135] close(3) = 0 [pid 5135] mkdir("./bus", 0777) = 0 [pid 5135] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5135] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5135] chdir("./bus") = 0 [pid 5135] ioctl(4, LOOP_CLR_FD) = 0 [pid 5135] close(4) = 0 [pid 5135] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] <... futex resumed>) = 0 [pid 5134] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5135] unlink("./file2" [pid 5134] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5135] <... unlink resumed>) = 0 [pid 5135] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5134] <... futex resumed>) = 0 [pid 5135] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5134] <... futex resumed>) = 0 [pid 5135] mkdir(".", 0777 [pid 5134] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5134] <... futex resumed>) = 0 [pid 5135] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5134] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5134] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5136], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5136 [pid 5134] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5134] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5136 attached [pid 5136] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5135] <... mount resumed>) = 0 [pid 5135] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5135] chdir(".") = 0 [pid 5135] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5136] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5136] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5134] <... futex resumed>) = 0 [pid 5136] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] exit_group(0 [pid 5136] <... futex resumed>) = ? [pid 5135] <... futex resumed>) = ? [pid 5134] <... exit_group resumed>) = ? [pid 5136] +++ exited with 0 +++ [pid 5135] +++ exited with 0 +++ [pid 5134] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./22/binderfs") = 0 umount2("./22/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./22/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./22/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./22/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./22/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./22") = 0 mkdir("./23", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5137 ./strace-static-x86_64: Process 5137 attached [pid 5137] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5137] chdir("./23") = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5137] write(3, "1000", 4) = 4 [pid 5137] close(3) = 0 [pid 5137] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5137] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5137] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5137] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5138 attached , parent_tid=[5138], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5138 [pid 5138] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5137] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5138] memfd_create("syzkaller", 0 [pid 5137] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5138] <... memfd_create resumed>) = 3 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 55.154700][ T5135] loop0: detected capacity change from 0 to 1024 [ 55.187192][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5138] munmap(0x7fce62e23000, 524288) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5138] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5138] close(3) = 0 [pid 5138] mkdir("./bus", 0777) = 0 [pid 5138] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5138] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5138] chdir("./bus") = 0 [pid 5138] ioctl(4, LOOP_CLR_FD) = 0 [pid 5138] close(4) = 0 [pid 5138] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5138] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5138] <... futex resumed>) = 0 [pid 5137] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] unlink("./file2") = 0 [pid 5138] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5138] mkdir(".", 0777 [pid 5137] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5138] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5138] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5137] <... mmap resumed>) = 0x7fce62e82000 [pid 5137] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5137] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5139], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5139 ./strace-static-x86_64: Process 5139 attached [pid 5137] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] set_robust_list(0x7fce62ea29e0, 24 [pid 5137] <... futex resumed>) = 0 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5137] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5139] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5138] <... mount resumed>) = 0 [pid 5139] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5139] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5139] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5138] <... openat resumed>) = 4 [pid 5138] chdir(".") = 0 [pid 5138] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5138] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5137] exit_group(0 [pid 5138] <... futex resumed>) = ? [pid 5137] <... exit_group resumed>) = ? [pid 5139] <... futex resumed>) = ? [pid 5138] +++ exited with 0 +++ [pid 5139] +++ exited with 0 +++ [pid 5137] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./23/binderfs") = 0 umount2("./23/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./23/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./23/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./23/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./23/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./23/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./23") = 0 mkdir("./24", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5140 ./strace-static-x86_64: Process 5140 attached [pid 5140] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5140] chdir("./24") = 0 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5140] setpgid(0, 0) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5140] write(3, "1000", 4) = 4 [pid 5140] close(3) = 0 [pid 5140] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5140] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5140] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5140] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5141], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5141 [pid 5140] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5141 attached [pid 5141] set_robust_list(0x7fce6b2439e0, 24) = 0 [ 55.239224][ T5138] loop0: detected capacity change from 0 to 1024 [ 55.266386][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5141] memfd_create("syzkaller", 0) = 3 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5141] munmap(0x7fce62e23000, 524288) = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5141] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5141] close(3) = 0 [pid 5141] mkdir("./bus", 0777) = 0 [pid 5141] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5141] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5141] chdir("./bus") = 0 [pid 5141] ioctl(4, LOOP_CLR_FD) = 0 [pid 5141] close(4) = 0 [pid 5141] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... futex resumed>) = 0 [pid 5140] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5141] <... futex resumed>) = 1 [pid 5141] unlink("./file2") = 0 [pid 5141] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... futex resumed>) = 0 [pid 5140] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5140] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5140] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5142], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5142 [pid 5140] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5141] <... futex resumed>) = 1 [pid 5141] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5141] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5142 attached [pid 5142] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5142] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5142] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... futex resumed>) = 0 [pid 5142] <... futex resumed>) = 1 [pid 5142] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] <... mount resumed>) = 0 [pid 5141] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5141] chdir(".") = 0 [pid 5141] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] exit_group(0) = ? [pid 5141] <... futex resumed>) = ? [pid 5141] +++ exited with 0 +++ [pid 5142] <... futex resumed>) = ? [pid 5142] +++ exited with 0 +++ [pid 5140] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./24/binderfs") = 0 umount2("./24/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./24/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./24/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./24/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./24/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./24") = 0 mkdir("./25", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 55.329108][ T5141] loop0: detected capacity change from 0 to 1024 [ 55.355703][ T41] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5143 ./strace-static-x86_64: Process 5143 attached [pid 5143] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5143] chdir("./25") = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5143] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5143] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5143] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5144], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5144 [pid 5143] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5144 attached [pid 5144] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5144] memfd_create("syzkaller", 0) = 3 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5144] munmap(0x7fce62e23000, 524288) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5144] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5144] close(3) = 0 [pid 5144] mkdir("./bus", 0777) = 0 [pid 5144] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5144] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5144] chdir("./bus") = 0 [pid 5144] ioctl(4, LOOP_CLR_FD) = 0 [pid 5144] close(4) = 0 [pid 5144] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5144] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5144] unlink("./file2") = 0 [pid 5144] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5144] mkdir(".", 0777 [pid 5143] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5144] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5144] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5143] <... mmap resumed>) = 0x7fce62e82000 [pid 5143] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5143] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5145 attached , parent_tid=[5145], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5145 [pid 5145] set_robust_list(0x7fce62ea29e0, 24 [pid 5143] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5145] <... set_robust_list resumed>) = 0 [pid 5145] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5144] <... mount resumed>) = 0 [pid 5144] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5145] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5144] chdir(".") = 0 [pid 5145] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5144] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] exit_group(0 [pid 5145] <... futex resumed>) = ? [pid 5144] <... futex resumed>) = ? [pid 5143] <... exit_group resumed>) = ? [pid 5145] +++ exited with 0 +++ [pid 5144] +++ exited with 0 +++ [pid 5143] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./25/binderfs") = 0 umount2("./25/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./25/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./25/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./25/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./25/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./25") = 0 mkdir("./26", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5146 ./strace-static-x86_64: Process 5146 attached [pid 5146] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5146] chdir("./26") = 0 [ 55.434870][ T5144] loop0: detected capacity change from 0 to 1024 [ 55.472839][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5146] setpgid(0, 0) = 0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5146] write(3, "1000", 4) = 4 [pid 5146] close(3) = 0 [pid 5146] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5146] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5146] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5146] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5147 attached , parent_tid=[5147], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5147 [pid 5147] set_robust_list(0x7fce6b2439e0, 24 [pid 5146] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5146] <... futex resumed>) = 0 [pid 5146] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5147] memfd_create("syzkaller", 0) = 3 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5147] munmap(0x7fce62e23000, 524288) = 0 [pid 5147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5147] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5147] close(3) = 0 [pid 5147] mkdir("./bus", 0777) = 0 [pid 5147] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5147] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5147] chdir("./bus") = 0 [pid 5147] ioctl(4, LOOP_CLR_FD) = 0 [pid 5147] close(4) = 0 [pid 5147] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] <... futex resumed>) = 0 [pid 5147] <... futex resumed>) = 1 [pid 5146] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] unlink("./file2" [pid 5146] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5147] <... unlink resumed>) = 0 [pid 5147] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] <... futex resumed>) = 0 [pid 5146] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5146] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5146] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5146] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5148], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5148 [pid 5146] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5146] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5147] <... futex resumed>) = 1 [pid 5147] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5147] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5148 attached [pid 5148] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5148] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5148] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] <... futex resumed>) = 0 [pid 5148] <... futex resumed>) = 1 [pid 5148] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5147] <... mount resumed>) = 0 [pid 5147] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5147] chdir(".") = 0 [pid 5147] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5146] exit_group(0 [pid 5148] <... futex resumed>) = ? [pid 5147] <... futex resumed>) = ? [pid 5146] <... exit_group resumed>) = ? [pid 5147] +++ exited with 0 +++ [pid 5148] +++ exited with 0 +++ [pid 5146] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./26/binderfs") = 0 umount2("./26/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./26/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./26/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./26/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./26/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./26") = 0 mkdir("./27", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5149 ./strace-static-x86_64: Process 5149 attached [ 55.530964][ T5147] loop0: detected capacity change from 0 to 1024 [ 55.563068][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5149] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5149] chdir("./27") = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5149] setpgid(0, 0) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5149] write(3, "1000", 4) = 4 [pid 5149] close(3) = 0 [pid 5149] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5149] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5149] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5149] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5150], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5150 [pid 5149] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5150 attached [pid 5150] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5150] memfd_create("syzkaller", 0) = 3 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5150] munmap(0x7fce62e23000, 524288) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5150] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5150] close(3) = 0 [pid 5150] mkdir("./bus", 0777) = 0 [pid 5150] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5150] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5150] chdir("./bus") = 0 [pid 5150] ioctl(4, LOOP_CLR_FD) = 0 [pid 5150] close(4) = 0 [pid 5150] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] unlink("./file2") = 0 [pid 5150] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5149] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5149] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5150] mkdir(".", 0777 [pid 5149] <... clone resumed>, parent_tid=[5151], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5151 [pid 5149] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5150] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5151 attached [pid 5151] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5151] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5151] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5151] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] <... futex resumed>) = 0 [pid 5150] <... mount resumed>) = 0 [pid 5150] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5150] chdir(".") = 0 [pid 5150] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] exit_group(0 [pid 5150] ???( [pid 5149] <... exit_group resumed>) = ? [pid 5150] <... ??? resumed>) = ? [pid 5151] <... futex resumed>) = ? [pid 5151] +++ exited with 0 +++ [pid 5150] +++ exited with 0 +++ [pid 5149] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./27/binderfs") = 0 umount2("./27/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./27/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./27/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./27/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./27/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./27") = 0 mkdir("./28", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 55.627178][ T5150] loop0: detected capacity change from 0 to 1024 [ 55.662659][ T41] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5152 ./strace-static-x86_64: Process 5152 attached [pid 5152] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5152] chdir("./28") = 0 [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] setpgid(0, 0) = 0 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5152] write(3, "1000", 4) = 4 [pid 5152] close(3) = 0 [pid 5152] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5152] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5152] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5152] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5153 attached , parent_tid=[5153], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5153 [pid 5152] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5153] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5153] memfd_create("syzkaller", 0) = 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5153] munmap(0x7fce62e23000, 524288) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5153] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5153] close(3) = 0 [pid 5153] mkdir("./bus", 0777) = 0 [pid 5153] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5153] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5153] chdir("./bus") = 0 [pid 5153] ioctl(4, LOOP_CLR_FD) = 0 [pid 5153] close(4) = 0 [pid 5153] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5152] <... futex resumed>) = 0 [pid 5152] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5153] <... futex resumed>) = 1 [pid 5153] unlink("./file2") = 0 [pid 5153] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5152] <... futex resumed>) = 0 [pid 5152] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5152] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5152] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5154 attached [pid 5154] set_robust_list(0x7fce62ea29e0, 24 [pid 5152] <... clone resumed>, parent_tid=[5154], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5154 [pid 5154] <... set_robust_list resumed>) = 0 [pid 5153] <... futex resumed>) = 1 [pid 5152] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5153] mkdir(".", 0777 [pid 5152] <... futex resumed>) = 0 [pid 5154] <... openat resumed>) = -1 EEXIST (File exists) [pid 5153] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5152] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5154] <... futex resumed>) = 0 [pid 5152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5154] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] <... mount resumed>) = 0 [pid 5153] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5153] chdir(".") = 0 [pid 5153] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5152] exit_group(0 [pid 5154] <... futex resumed>) = ? [pid 5153] <... futex resumed>) = ? [pid 5152] <... exit_group resumed>) = ? [pid 5154] +++ exited with 0 +++ [pid 5153] +++ exited with 0 +++ [pid 5152] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./28/binderfs") = 0 umount2("./28/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./28/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./28/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./28/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./28/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./28") = 0 mkdir("./29", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5155 [ 55.732859][ T5153] loop0: detected capacity change from 0 to 1024 [ 55.770890][ T41] hfsplus: b-tree write err: -5, ino 4 ./strace-static-x86_64: Process 5155 attached [pid 5155] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5155] chdir("./29") = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5155] setpgid(0, 0) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] write(3, "1000", 4) = 4 [pid 5155] close(3) = 0 [pid 5155] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5155] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5155] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5155] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5156], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5156 [pid 5155] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5156 attached [pid 5156] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5156] memfd_create("syzkaller", 0) = 3 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5156] munmap(0x7fce62e23000, 524288) = 0 [pid 5156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5156] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5156] close(3) = 0 [pid 5156] mkdir("./bus", 0777) = 0 [pid 5156] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5156] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5156] chdir("./bus") = 0 [pid 5156] ioctl(4, LOOP_CLR_FD) = 0 [pid 5156] close(4) = 0 [pid 5156] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] <... futex resumed>) = 1 [pid 5156] unlink("./file2") = 0 [pid 5156] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5156] mkdir(".", 0777 [pid 5155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5156] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5156] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5155] <... mmap resumed>) = 0x7fce62e82000 [pid 5155] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5155] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5157], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5157 [pid 5155] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5157 attached [pid 5157] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5157] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5156] <... mount resumed>) = 0 [pid 5156] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5157] <... openat resumed>) = -1 EEXIST (File exists) [pid 5156] <... openat resumed>) = 5 [pid 5157] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] chdir("." [pid 5155] <... futex resumed>) = 0 [pid 5157] <... futex resumed>) = 1 [pid 5157] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5156] <... chdir resumed>) = 0 [pid 5156] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5156] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5155] exit_group(0 [pid 5157] <... futex resumed>) = ? [pid 5156] <... futex resumed>) = ? [pid 5155] <... exit_group resumed>) = ? [pid 5157] +++ exited with 0 +++ [pid 5156] +++ exited with 0 +++ [pid 5155] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./29/binderfs") = 0 umount2("./29/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./29/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./29/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./29/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./29/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./29") = 0 mkdir("./30", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 55.831400][ T5156] loop0: detected capacity change from 0 to 1024 [ 55.864147][ T41] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5158 ./strace-static-x86_64: Process 5158 attached [pid 5158] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5158] chdir("./30") = 0 [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5158] setpgid(0, 0) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5158] write(3, "1000", 4) = 4 [pid 5158] close(3) = 0 [pid 5158] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5158] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5158] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5158] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5159 attached , parent_tid=[5159], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5159 [pid 5159] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5159] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5158] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5159] <... futex resumed>) = 0 [pid 5159] memfd_create("syzkaller", 0) = 3 [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5159] munmap(0x7fce62e23000, 524288) = 0 [pid 5159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5159] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5159] close(3) = 0 [pid 5159] mkdir("./bus", 0777) = 0 [pid 5159] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5159] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5159] chdir("./bus") = 0 [pid 5159] ioctl(4, LOOP_CLR_FD) = 0 [pid 5159] close(4) = 0 [pid 5159] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5158] <... futex resumed>) = 0 [pid 5158] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5159] <... futex resumed>) = 0 [pid 5159] unlink("./file2") = 0 [pid 5159] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] <... futex resumed>) = 0 [pid 5159] mkdir(".", 0777 [pid 5158] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5158] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5159] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5158] <... mmap resumed>) = 0x7fce62e82000 [pid 5158] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5158] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5160], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5160 [pid 5158] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5158] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5160 attached [pid 5160] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5160] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5159] <... mount resumed>) = 0 [pid 5159] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5160] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] <... futex resumed>) = 0 [pid 5160] <... futex resumed>) = 1 [pid 5160] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] <... openat resumed>) = 4 [pid 5159] chdir(".") = 0 [pid 5159] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5158] exit_group(0 [pid 5159] <... futex resumed>) = ? [pid 5158] <... exit_group resumed>) = ? [pid 5160] <... futex resumed>) = ? [pid 5159] +++ exited with 0 +++ [pid 5160] +++ exited with 0 +++ [pid 5158] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./30/binderfs") = 0 umount2("./30/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./30/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./30/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./30/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./30/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./30") = 0 mkdir("./31", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5161 ./strace-static-x86_64: Process 5161 attached [ 55.937665][ T5159] loop0: detected capacity change from 0 to 1024 [ 55.966985][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5161] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5161] chdir("./31") = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5161] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5161] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5161] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5162 attached , parent_tid=[5162], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5162 [pid 5161] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5162] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5162] memfd_create("syzkaller", 0) = 3 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5162] munmap(0x7fce62e23000, 524288) = 0 [pid 5162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5162] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5162] close(3) = 0 [pid 5162] mkdir("./bus", 0777) = 0 [pid 5162] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5162] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5162] chdir("./bus") = 0 [pid 5162] ioctl(4, LOOP_CLR_FD) = 0 [pid 5162] close(4) = 0 [pid 5162] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... futex resumed>) = 1 [pid 5162] unlink("./file2") = 0 [pid 5162] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5161] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5161] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5163], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5163 [pid 5161] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... futex resumed>) = 1 [pid 5162] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5162] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5163 attached [pid 5163] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5163] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5162] <... mount resumed>) = 0 [pid 5162] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5162] chdir(".") = 0 [pid 5162] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5162] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] <... openat resumed>) = -1 EEXIST (File exists) [pid 5163] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] <... futex resumed>) = 0 [pid 5161] exit_group(0) = ? [pid 5162] <... futex resumed>) = ? [pid 5162] +++ exited with 0 +++ [pid 5163] <... futex resumed>) = ? [pid 5163] +++ exited with 0 +++ [pid 5161] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./31/binderfs") = 0 umount2("./31/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./31/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./31/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./31/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./31/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./31/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./31") = 0 mkdir("./32", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5164 ./strace-static-x86_64: Process 5164 attached [pid 5164] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5164] chdir("./32") = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5164] setpgid(0, 0) = 0 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5164] write(3, "1000", 4) = 4 [pid 5164] close(3) = 0 [pid 5164] symlink("/dev/binderfs", "./binderfs") = 0 [ 56.037630][ T5162] loop0: detected capacity change from 0 to 1024 [ 56.058097][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5164] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5164] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5164] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5165 attached , parent_tid=[5165], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5165 [pid 5165] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5165] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5164] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5165] memfd_create("syzkaller", 0) = 3 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5165] munmap(0x7fce62e23000, 524288) = 0 [pid 5165] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5165] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5165] close(3) = 0 [pid 5165] mkdir("./bus", 0777) = 0 [pid 5165] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5165] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5165] chdir("./bus") = 0 [pid 5165] ioctl(4, LOOP_CLR_FD) = 0 [pid 5165] close(4) = 0 [pid 5165] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] <... futex resumed>) = 0 [pid 5164] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5164] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5165] <... futex resumed>) = 0 [pid 5165] unlink("./file2") = 0 [pid 5165] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5164] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5164] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5165] mkdir(".", 0777 [pid 5164] <... mmap resumed>) = 0x7fce62e82000 [pid 5164] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5165] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5164] <... mprotect resumed>) = 0 [pid 5164] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5166], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5166 [pid 5165] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5164] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5164] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5166 attached [pid 5166] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5166] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5166] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] <... futex resumed>) = 0 [pid 5166] <... futex resumed>) = 1 [pid 5166] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5165] <... mount resumed>) = 0 [pid 5165] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5165] chdir(".") = 0 [pid 5165] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5164] exit_group(0) = ? [pid 5166] <... futex resumed>) = ? [pid 5165] <... futex resumed>) = ? [pid 5166] +++ exited with 0 +++ [pid 5165] +++ exited with 0 +++ [pid 5164] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./32/binderfs") = 0 umount2("./32/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./32/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./32/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./32/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./32/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./32") = 0 mkdir("./33", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5167 [ 56.134073][ T5165] loop0: detected capacity change from 0 to 1024 [ 56.169602][ T9] hfsplus: b-tree write err: -5, ino 4 ./strace-static-x86_64: Process 5167 attached [pid 5167] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5167] chdir("./33") = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5167] setpgid(0, 0) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5167] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5167] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5167] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5168], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5168 [pid 5167] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5168 attached [pid 5168] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5168] memfd_create("syzkaller", 0) = 3 [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5168] munmap(0x7fce62e23000, 524288) = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5168] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5168] close(3) = 0 [pid 5168] mkdir("./bus", 0777) = 0 [pid 5168] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5168] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5168] chdir("./bus") = 0 [pid 5168] ioctl(4, LOOP_CLR_FD) = 0 [pid 5168] close(4) = 0 [pid 5168] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] unlink("./file2") = 0 [pid 5168] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5168] mkdir(".", 0777 [pid 5167] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5168] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5167] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5168] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5167] <... clone resumed>, parent_tid=[5169], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5169 [pid 5167] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5169 attached [pid 5169] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5169] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5168] <... mount resumed>) = 0 [pid 5168] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5169] <... openat resumed>) = -1 EEXIST (File exists) [pid 5168] <... openat resumed>) = 5 [pid 5169] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5169] <... futex resumed>) = 1 [pid 5169] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5168] chdir(".") = 0 [pid 5168] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5168] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] exit_group(0) = ? [pid 5169] <... futex resumed>) = ? [pid 5168] <... futex resumed>) = ? [pid 5168] +++ exited with 0 +++ [pid 5169] +++ exited with 0 +++ [pid 5167] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./33/binderfs") = 0 umount2("./33/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./33/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./33/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./33/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./33/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./33") = 0 mkdir("./34", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5170 ./strace-static-x86_64: Process 5170 attached [pid 5170] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5170] chdir("./34") = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5170] setpgid(0, 0) = 0 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5170] write(3, "1000", 4) = 4 [pid 5170] close(3) = 0 [pid 5170] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5170] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5170] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5170] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5171], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5171 [pid 5170] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5171 attached [pid 5171] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5171] memfd_create("syzkaller", 0) = 3 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5171] munmap(0x7fce62e23000, 524288) = 0 [ 56.226007][ T5168] loop0: detected capacity change from 0 to 1024 [ 56.252733][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5171] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5171] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5171] close(3) = 0 [pid 5171] mkdir("./bus", 0777) = 0 [pid 5171] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5171] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5171] chdir("./bus") = 0 [pid 5171] ioctl(4, LOOP_CLR_FD) = 0 [pid 5171] close(4) = 0 [pid 5171] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5170] <... futex resumed>) = 0 [pid 5170] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5170] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5171] unlink("./file2") = 0 [pid 5171] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5170] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5170] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5170] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5172], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5172 [pid 5170] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5170] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5171] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5171] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5172 attached [pid 5172] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5172] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5172] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5172] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] <... mount resumed>) = 0 [pid 5171] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5171] chdir(".") = 0 [pid 5171] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5170] exit_group(0 [pid 5171] <... futex resumed>) = ? [pid 5170] <... exit_group resumed>) = ? [pid 5172] <... futex resumed>) = ? [pid 5171] +++ exited with 0 +++ [pid 5172] +++ exited with 0 +++ [pid 5170] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./34/binderfs") = 0 umount2("./34/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./34/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./34/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./34/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./34/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./34") = 0 mkdir("./35", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 56.307512][ T5171] loop0: detected capacity change from 0 to 1024 [ 56.310309][ T5068] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 56.347339][ T41] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5173 ./strace-static-x86_64: Process 5173 attached [pid 5173] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5173] chdir("./35") = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setpgid(0, 0) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5173] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5173] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5173] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5174], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5174 [pid 5173] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5174 attached [pid 5174] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5174] memfd_create("syzkaller", 0) = 3 [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5174] munmap(0x7fce62e23000, 524288) = 0 [pid 5174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5174] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5174] close(3) = 0 [pid 5174] mkdir("./bus", 0777) = 0 [pid 5174] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5174] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5174] chdir("./bus") = 0 [pid 5174] ioctl(4, LOOP_CLR_FD) = 0 [pid 5174] close(4) = 0 [pid 5174] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5173] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... futex resumed>) = 0 [pid 5174] unlink("./file2") = 0 [pid 5174] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5174] mkdir(".", 0777 [pid 5173] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5173] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5175], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5175 [pid 5173] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5174] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5175 attached [pid 5175] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5174] <... mount resumed>) = 0 [pid 5175] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5174] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5175] <... openat resumed>) = -1 EEXIST (File exists) [pid 5174] <... openat resumed>) = 4 [pid 5175] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] chdir("." [pid 5173] <... futex resumed>) = 0 [pid 5175] <... futex resumed>) = 1 [pid 5174] <... chdir resumed>) = 0 [pid 5175] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5174] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] exit_group(0 [pid 5175] <... futex resumed>) = ? [pid 5174] <... futex resumed>) = ? [pid 5173] <... exit_group resumed>) = ? [pid 5175] +++ exited with 0 +++ [pid 5174] +++ exited with 0 +++ [pid 5173] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./35/binderfs") = 0 umount2("./35/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./35/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./35/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./35/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./35/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./35") = 0 mkdir("./36", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5176 ./strace-static-x86_64: Process 5176 attached [pid 5176] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5176] chdir("./36") = 0 [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 56.427340][ T5174] loop0: detected capacity change from 0 to 1024 [ 56.458855][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5176] setpgid(0, 0) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5176] write(3, "1000", 4) = 4 [pid 5176] close(3) = 0 [pid 5176] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5176] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5176] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5176] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5177], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5177 ./strace-static-x86_64: Process 5177 attached [pid 5176] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5177] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5177] memfd_create("syzkaller", 0) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5177] munmap(0x7fce62e23000, 524288) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5177] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5177] close(3) = 0 [pid 5177] mkdir("./bus", 0777) = 0 [pid 5177] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5177] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5177] chdir("./bus") = 0 [pid 5177] ioctl(4, LOOP_CLR_FD) = 0 [pid 5177] close(4) = 0 [pid 5177] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5176] <... futex resumed>) = 0 [pid 5176] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5177] <... futex resumed>) = 0 [pid 5177] unlink("./file2") = 0 [pid 5177] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... futex resumed>) = 0 [pid 5176] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5176] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5176] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5178], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5178 [pid 5176] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5177] <... futex resumed>) = 1 [pid 5177] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5177] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5178 attached [pid 5178] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5178] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5178] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... futex resumed>) = 0 [pid 5177] <... mount resumed>) = 0 [pid 5178] <... futex resumed>) = 1 [pid 5177] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5178] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] <... openat resumed>) = 4 [pid 5177] chdir(".") = 0 [pid 5177] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5176] exit_group(0 [pid 5177] <... futex resumed>) = ? [pid 5176] <... exit_group resumed>) = ? [pid 5177] +++ exited with 0 +++ [pid 5178] <... futex resumed>) = ? [pid 5178] +++ exited with 0 +++ [pid 5176] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./36/binderfs") = 0 umount2("./36/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./36/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./36/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./36/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./36/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./36") = 0 mkdir("./37", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5179 ./strace-static-x86_64: Process 5179 attached [pid 5179] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5179] chdir("./37") = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5179] setpgid(0, 0) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 56.522950][ T5177] loop0: detected capacity change from 0 to 1024 [ 56.557331][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 [pid 5179] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5179] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5179] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5179] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5180 attached [pid 5180] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5180] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] <... clone resumed>, parent_tid=[5180], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5180 [pid 5179] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5179] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5180] memfd_create("syzkaller", 0) = 3 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5180] munmap(0x7fce62e23000, 524288) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5180] close(3) = 0 [pid 5180] mkdir("./bus", 0777) = 0 [pid 5180] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5180] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5180] chdir("./bus") = 0 [pid 5180] ioctl(4, LOOP_CLR_FD) = 0 [pid 5180] close(4) = 0 [pid 5180] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] <... futex resumed>) = 0 [pid 5179] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... futex resumed>) = 0 [pid 5180] unlink("./file2") = 0 [pid 5180] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5179] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5179] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5179] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5181 attached , parent_tid=[5181], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5181 [pid 5179] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] mkdir(".", 0777 [pid 5181] set_robust_list(0x7fce62ea29e0, 24 [pid 5180] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5180] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5181] <... set_robust_list resumed>) = 0 [pid 5181] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5181] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5179] <... futex resumed>) = 0 [pid 5181] <... futex resumed>) = 1 [pid 5181] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5180] <... mount resumed>) = 0 [pid 5180] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5180] chdir(".") = 0 [pid 5180] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] exit_group(0) = ? [pid 5180] <... futex resumed>) = ? [pid 5180] +++ exited with 0 +++ [pid 5181] <... futex resumed>) = ? [pid 5181] +++ exited with 0 +++ [pid 5179] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./37/binderfs") = 0 umount2("./37/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./37/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./37/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./37/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./37/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./37") = 0 mkdir("./38", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5182 ./strace-static-x86_64: Process 5182 attached [pid 5182] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5182] chdir("./38") = 0 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5182] setpgid(0, 0) = 0 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5182] write(3, "1000", 4) = 4 [pid 5182] close(3) = 0 [pid 5182] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5182] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5182] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [ 56.622719][ T5180] loop0: detected capacity change from 0 to 1024 [ 56.657467][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5182] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5183 attached , parent_tid=[5183], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5183 [pid 5183] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5183] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5182] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5182] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5183] memfd_create("syzkaller", 0) = 3 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5183] munmap(0x7fce62e23000, 524288) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5183] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5183] close(3) = 0 [pid 5183] mkdir("./bus", 0777) = 0 [pid 5183] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5183] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5183] chdir("./bus") = 0 [pid 5183] ioctl(4, LOOP_CLR_FD) = 0 [pid 5183] close(4) = 0 [pid 5183] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] <... futex resumed>) = 0 [pid 5182] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5183] <... futex resumed>) = 1 [pid 5183] unlink("./file2") = 0 [pid 5183] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] <... futex resumed>) = 0 [pid 5182] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5182] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5182] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5184], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5184 [pid 5182] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5183] <... futex resumed>) = 1 [pid 5183] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5183] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5184 attached [pid 5184] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5184] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5183] <... mount resumed>) = 0 [pid 5183] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5183] chdir(".") = 0 [pid 5183] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5184] <... openat resumed>) = -1 EEXIST (File exists) [pid 5184] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] <... futex resumed>) = 0 [pid 5182] exit_group(0) = ? [pid 5183] <... futex resumed>) = ? [pid 5183] +++ exited with 0 +++ [pid 5184] <... futex resumed>) = ? [pid 5184] +++ exited with 0 +++ [pid 5182] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./38/binderfs") = 0 umount2("./38/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./38/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./38/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./38/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./38/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./38") = 0 mkdir("./39", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5185 ./strace-static-x86_64: Process 5185 attached [pid 5185] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5185] chdir("./39") = 0 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5185] setpgid(0, 0) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5185] write(3, "1000", 4) = 4 [pid 5185] close(3) = 0 [pid 5185] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5185] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5185] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5185] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5186], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5186 ./strace-static-x86_64: Process 5186 attached [pid 5186] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5186] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5186] memfd_create("syzkaller", 0 [pid 5185] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5186] <... memfd_create resumed>) = 3 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5186] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5186] munmap(0x7fce62e23000, 524288) = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 56.713821][ T5183] loop0: detected capacity change from 0 to 1024 [ 56.736875][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5186] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5186] close(3) = 0 [pid 5186] mkdir("./bus", 0777) = 0 [pid 5186] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5186] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5186] chdir("./bus") = 0 [pid 5186] ioctl(4, LOOP_CLR_FD) = 0 [pid 5186] close(4) = 0 [pid 5186] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] unlink("./file2" [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... unlink resumed>) = 0 [pid 5186] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5185] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5185] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5187 attached , parent_tid=[5187], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5187 [pid 5187] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5185] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5187] <... openat resumed>) = -1 EEXIST (File exists) [pid 5187] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5186] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5187] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5186] <... mount resumed>) = 0 [pid 5186] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5186] chdir(".") = 0 [pid 5186] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] exit_group(0) = ? [pid 5187] <... futex resumed>) = ? [pid 5187] +++ exited with 0 +++ [pid 5186] +++ exited with 0 +++ [pid 5185] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./39/binderfs") = 0 umount2("./39/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./39/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./39/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./39/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./39/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./39") = 0 mkdir("./40", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5188 ./strace-static-x86_64: Process 5188 attached [pid 5188] set_robust_list(0x555556e9d5e0, 24) = 0 [ 56.794549][ T5186] loop0: detected capacity change from 0 to 1024 [ 56.827895][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5188] chdir("./40") = 0 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5188] setpgid(0, 0) = 0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5188] write(3, "1000", 4) = 4 [pid 5188] close(3) = 0 [pid 5188] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5188] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5188] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5188] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5189 attached [pid 5189] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5189] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5188] <... clone resumed>, parent_tid=[5189], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5189 [pid 5188] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5188] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5189] memfd_create("syzkaller", 0) = 3 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5189] munmap(0x7fce62e23000, 524288) = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5189] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5189] close(3) = 0 [pid 5189] mkdir("./bus", 0777) = 0 [pid 5189] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5189] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5189] chdir("./bus") = 0 [pid 5189] ioctl(4, LOOP_CLR_FD) = 0 [pid 5189] close(4) = 0 [pid 5189] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5188] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5189] unlink("./file2") = 0 [pid 5189] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] <... futex resumed>) = 0 [pid 5188] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5188] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5188] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5190], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5190 [pid 5188] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5189] <... futex resumed>) = 1 [pid 5189] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5189] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5190 attached [pid 5190] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5190] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5190] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5190] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] <... mount resumed>) = 0 [pid 5189] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5189] chdir(".") = 0 [pid 5189] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5189] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5188] exit_group(0 [pid 5189] <... futex resumed>) = ? [pid 5190] <... futex resumed>) = ? [pid 5188] <... exit_group resumed>) = ? [pid 5189] +++ exited with 0 +++ [pid 5190] +++ exited with 0 +++ [pid 5188] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./40/binderfs") = 0 umount2("./40/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./40/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./40/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./40/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./40/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./40/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./40") = 0 mkdir("./41", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5191 ./strace-static-x86_64: Process 5191 attached [pid 5191] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5191] chdir("./41") = 0 [ 56.893425][ T5189] loop0: detected capacity change from 0 to 1024 [ 56.925313][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5191] setpgid(0, 0) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5191] write(3, "1000", 4) = 4 [pid 5191] close(3) = 0 [pid 5191] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5191] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5191] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5191] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5192 attached , parent_tid=[5192], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5192 [pid 5191] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5192] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5192] memfd_create("syzkaller", 0) = 3 [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5192] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5192] munmap(0x7fce62e23000, 524288) = 0 [pid 5192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5192] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5192] close(3) = 0 [pid 5192] mkdir("./bus", 0777) = 0 [pid 5192] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5192] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5192] chdir("./bus") = 0 [pid 5192] ioctl(4, LOOP_CLR_FD) = 0 [pid 5192] close(4) = 0 [pid 5192] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... futex resumed>) = 1 [pid 5192] unlink("./file2") = 0 [pid 5192] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5191] <... futex resumed>) = 0 [pid 5192] mkdir(".", 0777 [pid 5191] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5191] <... futex resumed>) = 0 [pid 5192] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5191] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5191] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5191] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5192] <... mount resumed>) = 0 [pid 5191] <... clone resumed>, parent_tid=[5193], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5193 [pid 5191] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5191] <... futex resumed>) = 0 [pid 5192] <... openat resumed>) = 4 [pid 5191] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] chdir(".") = 0 [pid 5192] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5192] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5193 attached [pid 5193] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5193] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5193] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5191] <... futex resumed>) = 0 [pid 5193] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] exit_group(0) = ? [pid 5192] <... futex resumed>) = ? [pid 5192] +++ exited with 0 +++ [pid 5193] <... futex resumed>) = ? [pid 5193] +++ exited with 0 +++ [pid 5191] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./41/binderfs") = 0 umount2("./41/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./41/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./41/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./41/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./41/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./41/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./41") = 0 mkdir("./42", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5194 ./strace-static-x86_64: Process 5194 attached [pid 5194] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5194] chdir("./42") = 0 [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5194] setpgid(0, 0) = 0 [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5194] write(3, "1000", 4) = 4 [pid 5194] close(3) = 0 [pid 5194] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5194] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5194] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5194] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5195], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5195 [pid 5194] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5194] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5195 attached [pid 5195] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5195] memfd_create("syzkaller", 0) = 3 [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 56.989889][ T5192] loop0: detected capacity change from 0 to 1024 [ 57.010420][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5195] munmap(0x7fce62e23000, 524288) = 0 [pid 5195] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5195] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5195] close(3) = 0 [pid 5195] mkdir("./bus", 0777) = 0 [pid 5195] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5195] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5195] chdir("./bus") = 0 [pid 5195] ioctl(4, LOOP_CLR_FD) = 0 [pid 5195] close(4) = 0 [pid 5195] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = 0 [pid 5194] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5194] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... futex resumed>) = 1 [pid 5195] unlink("./file2") = 0 [pid 5195] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = 0 [pid 5194] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5194] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5194] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5194] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5196], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5196 [pid 5194] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5194] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5195] <... futex resumed>) = 1 [pid 5195] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5195] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5196 attached [pid 5196] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5196] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5195] <... mount resumed>) = 0 [pid 5195] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5195] chdir(".") = 0 [pid 5195] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5196] <... openat resumed>) = -1 EEXIST (File exists) [pid 5196] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5194] <... futex resumed>) = 0 [pid 5194] exit_group(0) = ? [pid 5195] <... futex resumed>) = ? [pid 5196] +++ exited with 0 +++ [pid 5195] +++ exited with 0 +++ [pid 5194] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./42/binderfs") = 0 umount2("./42/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./42/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./42/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./42/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./42/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./42/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./42") = 0 mkdir("./43", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5197 attached , child_tidptr=0x555556e9d5d0) = 5197 [pid 5197] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5197] chdir("./43") = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 57.061434][ T5195] loop0: detected capacity change from 0 to 1024 [ 57.084939][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5197] setpgid(0, 0) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5197] write(3, "1000", 4) = 4 [pid 5197] close(3) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5197] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5197] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5197] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5198], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5198 [pid 5197] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5198 attached [pid 5198] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5198] memfd_create("syzkaller", 0) = 3 [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5198] munmap(0x7fce62e23000, 524288) = 0 [pid 5198] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5198] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5198] close(3) = 0 [pid 5198] mkdir("./bus", 0777) = 0 [pid 5198] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5198] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5198] chdir("./bus") = 0 [pid 5198] ioctl(4, LOOP_CLR_FD) = 0 [pid 5198] close(4) = 0 [pid 5198] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] unlink("./file2" [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] <... unlink resumed>) = 0 [pid 5198] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5198] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] <... futex resumed>) = 0 [pid 5198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5197] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5198] mkdir(".", 0777 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5198] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5197] <... mmap resumed>) = 0x7fce62e82000 [pid 5198] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5197] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5197] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5199], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5199 [pid 5197] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5199 attached [pid 5199] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5199] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5199] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5197] <... futex resumed>) = 0 [pid 5199] <... futex resumed>) = 1 [pid 5198] <... mount resumed>) = 0 [pid 5198] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5198] chdir(".") = 0 [pid 5198] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5198] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] exit_group(0 [pid 5198] <... futex resumed>) = ? [pid 5197] <... exit_group resumed>) = ? [pid 5198] +++ exited with 0 +++ [pid 5199] +++ exited with 0 +++ [pid 5197] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./43/binderfs") = 0 umount2("./43/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./43/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./43/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./43/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./43/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./43/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./43") = 0 mkdir("./44", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 57.161131][ T5198] loop0: detected capacity change from 0 to 1024 [ 57.188899][ T9] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5200 ./strace-static-x86_64: Process 5200 attached [pid 5200] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5200] chdir("./44") = 0 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5200] setpgid(0, 0) = 0 [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5200] write(3, "1000", 4) = 4 [pid 5200] close(3) = 0 [pid 5200] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5200] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5200] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5200] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5201 attached [pid 5201] set_robust_list(0x7fce6b2439e0, 24 [pid 5200] <... clone resumed>, parent_tid=[5201], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5201 [pid 5201] <... set_robust_list resumed>) = 0 [pid 5200] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5201] memfd_create("syzkaller", 0) = 3 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5201] munmap(0x7fce62e23000, 524288) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5201] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5201] close(3) = 0 [pid 5201] mkdir("./bus", 0777) = 0 [pid 5201] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5201] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5201] chdir("./bus") = 0 [pid 5201] ioctl(4, LOOP_CLR_FD) = 0 [pid 5201] close(4) = 0 [pid 5201] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5201] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5200] <... futex resumed>) = 0 [pid 5201] unlink("./file2" [pid 5200] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5201] <... unlink resumed>) = 0 [pid 5201] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5200] <... futex resumed>) = 0 [pid 5201] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5200] <... mmap resumed>) = 0x7fce62e82000 [pid 5201] mkdir(".", 0777 [pid 5200] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5201] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5201] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5200] <... mprotect resumed>) = 0 [ 57.266501][ T5201] loop0: detected capacity change from 0 to 1024 [pid 5200] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5202], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5202 [pid 5200] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5202 attached [pid 5202] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5202] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5202] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] <... futex resumed>) = 0 [pid 5202] <... futex resumed>) = 1 [pid 5202] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5201] <... mount resumed>) = 0 [pid 5201] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5201] chdir(".") = 0 [pid 5201] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5200] exit_group(0 [pid 5202] <... futex resumed>) = ? [pid 5201] <... futex resumed>) = ? [pid 5200] <... exit_group resumed>) = ? [pid 5201] +++ exited with 0 +++ [pid 5202] +++ exited with 0 +++ [pid 5200] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./44/binderfs") = 0 umount2("./44/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./44/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./44/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./44/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./44/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./44/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./44") = 0 mkdir("./45", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5203 ./strace-static-x86_64: Process 5203 attached [pid 5203] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5203] chdir("./45") = 0 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5203] setpgid(0, 0) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5203] write(3, "1000", 4) = 4 [pid 5203] close(3) = 0 [pid 5203] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5203] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5203] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5203] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5204 attached , parent_tid=[5204], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5204 [pid 5203] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5204] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5204] memfd_create("syzkaller", 0) = 3 [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5204] munmap(0x7fce62e23000, 524288) = 0 [pid 5204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 57.309581][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5204] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5204] close(3) = 0 [pid 5204] mkdir("./bus", 0777) = 0 [pid 5204] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5204] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5204] chdir("./bus") = 0 [pid 5204] ioctl(4, LOOP_CLR_FD) = 0 [pid 5204] close(4) = 0 [pid 5204] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5204] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5203] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 0 [pid 5204] unlink("./file2") = 0 [pid 5204] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5203] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5203] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5205 attached [pid 5205] set_robust_list(0x7fce62ea29e0, 24 [pid 5203] <... clone resumed>, parent_tid=[5205], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5205 [pid 5205] <... set_robust_list resumed>) = 0 [pid 5203] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5203] <... futex resumed>) = 0 [pid 5205] <... openat resumed>) = -1 EEXIST (File exists) [pid 5203] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5205] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5205] <... futex resumed>) = 0 [pid 5205] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5204] <... futex resumed>) = 1 [pid 5204] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5204] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5204] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5204] chdir(".") = 0 [pid 5204] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5204] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] exit_group(0 [pid 5204] <... futex resumed>) = ? [pid 5203] <... exit_group resumed>) = ? [pid 5204] +++ exited with 0 +++ [pid 5205] <... futex resumed>) = ? [pid 5205] +++ exited with 0 +++ [pid 5203] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./45/binderfs") = 0 umount2("./45/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./45/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./45/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./45/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./45/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./45/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./45") = 0 mkdir("./46", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 57.358153][ T5204] loop0: detected capacity change from 0 to 1024 [ 57.392908][ T9] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5206 ./strace-static-x86_64: Process 5206 attached [pid 5206] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5206] chdir("./46") = 0 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5206] setpgid(0, 0) = 0 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5206] write(3, "1000", 4) = 4 [pid 5206] close(3) = 0 [pid 5206] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5206] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5206] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5206] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5207 attached , parent_tid=[5207], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5207 [pid 5206] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5206] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5207] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5207] memfd_create("syzkaller", 0) = 3 [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5207] munmap(0x7fce62e23000, 524288) = 0 [pid 5207] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5207] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5207] close(3) = 0 [pid 5207] mkdir("./bus", 0777) = 0 [pid 5207] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5207] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5207] chdir("./bus") = 0 [pid 5207] ioctl(4, LOOP_CLR_FD) = 0 [pid 5207] close(4) = 0 [pid 5207] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] <... futex resumed>) = 0 [pid 5206] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5207] <... futex resumed>) = 0 [pid 5207] unlink("./file2") = 0 [pid 5207] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5207] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5206] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5207] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5207] mkdir(".", 0777 [pid 5206] <... mmap resumed>) = 0x7fce62e82000 [pid 5207] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5206] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5207] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5206] <... mprotect resumed>) = 0 [pid 5206] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5208], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5208 [pid 5206] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5206] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5208 attached [pid 5208] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5208] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5207] <... mount resumed>) = 0 [pid 5207] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5208] <... openat resumed>) = -1 EEXIST (File exists) [pid 5207] chdir(".") = 0 [pid 5207] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5208] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5208] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5206] exit_group(0 [pid 5207] <... futex resumed>) = ? [pid 5206] <... exit_group resumed>) = ? [pid 5207] +++ exited with 0 +++ [pid 5208] <... futex resumed>) = ? [pid 5208] +++ exited with 0 +++ [pid 5206] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./46/binderfs") = 0 umount2("./46/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./46/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./46/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./46/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./46/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./46/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./46") = 0 mkdir("./47", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5209 ./strace-static-x86_64: Process 5209 attached [pid 5209] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5209] chdir("./47") = 0 [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5209] setpgid(0, 0) = 0 [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5209] write(3, "1000", 4) = 4 [pid 5209] close(3) = 0 [pid 5209] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5209] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5209] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5209] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5210 attached , parent_tid=[5210], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5210 [pid 5210] set_robust_list(0x7fce6b2439e0, 24 [pid 5209] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... set_robust_list resumed>) = 0 [pid 5209] <... futex resumed>) = 0 [pid 5209] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5210] memfd_create("syzkaller", 0) = 3 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5210] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [ 57.469322][ T5207] loop0: detected capacity change from 0 to 1024 [ 57.497356][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5210] munmap(0x7fce62e23000, 524288) = 0 [pid 5210] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5210] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5210] close(3) = 0 [pid 5210] mkdir("./bus", 0777) = 0 [pid 5210] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5210] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5210] chdir("./bus") = 0 [pid 5210] ioctl(4, LOOP_CLR_FD) = 0 [pid 5210] close(4) = 0 [pid 5210] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5210] unlink("./file2" [pid 5209] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... unlink resumed>) = 0 [pid 5209] <... futex resumed>) = 0 [pid 5210] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5209] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] <... futex resumed>) = 0 [pid 5209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5210] mkdir(".", 0777 [pid 5209] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5209] <... futex resumed>) = 0 [pid 5210] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5209] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5209] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5210] <... mount resumed>) = 0 [pid 5209] <... mprotect resumed>) = 0 [pid 5209] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5211 attached [pid 5210] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5209] <... clone resumed>, parent_tid=[5211], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5211 [pid 5210] <... openat resumed>) = 4 [pid 5209] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] chdir("." [pid 5209] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5211] set_robust_list(0x7fce62ea29e0, 24 [pid 5210] <... chdir resumed>) = 0 [pid 5211] <... set_robust_list resumed>) = 0 [pid 5211] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5210] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... futex resumed>) = 0 [pid 5211] <... futex resumed>) = 1 [pid 5210] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] <... futex resumed>) = 0 [pid 5211] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] exit_group(0 [pid 5211] <... futex resumed>) = ? [pid 5210] <... futex resumed>) = ? [pid 5209] <... exit_group resumed>) = ? [pid 5210] +++ exited with 0 +++ [pid 5211] +++ exited with 0 +++ [pid 5209] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./47/binderfs") = 0 umount2("./47/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./47/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./47/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./47/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./47/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./47/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./47") = 0 mkdir("./48", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5212 ./strace-static-x86_64: Process 5212 attached [pid 5212] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5212] chdir("./48") = 0 [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 57.552433][ T5210] loop0: detected capacity change from 0 to 1024 [ 57.585934][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5212] setpgid(0, 0) = 0 [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5212] write(3, "1000", 4) = 4 [pid 5212] close(3) = 0 [pid 5212] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5212] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5212] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5212] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5213 attached , parent_tid=[5213], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5213 [pid 5213] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5213] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5212] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5213] <... futex resumed>) = 0 [pid 5213] memfd_create("syzkaller", 0 [pid 5212] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5213] <... memfd_create resumed>) = 3 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5213] munmap(0x7fce62e23000, 524288) = 0 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5213] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5213] close(3) = 0 [pid 5213] mkdir("./bus", 0777) = 0 [pid 5213] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5213] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5213] chdir("./bus") = 0 [pid 5213] ioctl(4, LOOP_CLR_FD) = 0 [pid 5213] close(4) = 0 [pid 5213] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... futex resumed>) = 0 [pid 5212] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5212] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5213] <... futex resumed>) = 1 [pid 5213] unlink("./file2") = 0 [pid 5213] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... futex resumed>) = 0 [pid 5212] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5212] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5212] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5212] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5214], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5214 [pid 5212] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5212] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5213] <... futex resumed>) = 1 [pid 5213] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5213] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5214 attached [pid 5214] set_robust_list(0x7fce62ea29e0, 24 [pid 5213] <... mount resumed>) = 0 [pid 5213] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5214] <... set_robust_list resumed>) = 0 [pid 5213] <... openat resumed>) = 4 [pid 5213] chdir("." [pid 5214] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5213] <... chdir resumed>) = 0 [pid 5213] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5214] <... openat resumed>) = -1 EEXIST (File exists) [pid 5214] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5212] <... futex resumed>) = 0 [pid 5212] exit_group(0) = ? [pid 5214] +++ exited with 0 +++ [pid 5213] <... futex resumed>) = ? [pid 5213] +++ exited with 0 +++ [pid 5212] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./48/binderfs") = 0 umount2("./48/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./48/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./48/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./48/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./48/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./48/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./48") = 0 mkdir("./49", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5215 [ 57.656009][ T5213] loop0: detected capacity change from 0 to 1024 [ 57.677687][ T2393] hfsplus: b-tree write err: -5, ino 4 ./strace-static-x86_64: Process 5215 attached [pid 5215] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5215] chdir("./49") = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5215] setpgid(0, 0) = 0 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1000", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5215] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5215] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5215] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5216 attached , parent_tid=[5216], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5216 [pid 5216] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5216] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] <... futex resumed>) = 0 [pid 5215] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5216] memfd_create("syzkaller", 0) = 3 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5216] munmap(0x7fce62e23000, 524288) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5216] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5216] close(3) = 0 [pid 5216] mkdir("./bus", 0777) = 0 [pid 5216] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5216] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5216] chdir("./bus") = 0 [pid 5216] ioctl(4, LOOP_CLR_FD) = 0 [pid 5216] close(4) = 0 [pid 5216] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... futex resumed>) = 0 [pid 5215] <... futex resumed>) = 1 [pid 5216] unlink("./file2" [pid 5215] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... unlink resumed>) = 0 [pid 5216] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5216] mkdir(".", 0777 [pid 5215] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5215] <... futex resumed>) = 0 [pid 5216] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5215] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5215] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5215] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5217], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5217 [pid 5215] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5217] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5217] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... futex resumed>) = 0 [pid 5217] <... futex resumed>) = 1 [pid 5216] <... mount resumed>) = 0 [pid 5216] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5217] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5216] <... openat resumed>) = 4 [pid 5216] chdir(".") = 0 [pid 5216] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5216] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] exit_group(0 [pid 5216] <... futex resumed>) = ? [pid 5215] <... exit_group resumed>) = ? [pid 5216] +++ exited with 0 +++ [pid 5217] <... futex resumed>) = ? [pid 5217] +++ exited with 0 +++ [pid 5215] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./49/binderfs") = 0 umount2("./49/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./49/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./49/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./49/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./49/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./49/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./49") = 0 mkdir("./50", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5218 ./strace-static-x86_64: Process 5218 attached [ 57.764449][ T5216] loop0: detected capacity change from 0 to 1024 [ 57.799549][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5218] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5218] chdir("./50") = 0 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5218] setpgid(0, 0) = 0 [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5218] write(3, "1000", 4) = 4 [pid 5218] close(3) = 0 [pid 5218] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5218] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5218] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5218] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5219 attached , parent_tid=[5219], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5219 [pid 5218] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] set_robust_list(0x7fce6b2439e0, 24 [pid 5218] <... futex resumed>) = 0 [pid 5219] <... set_robust_list resumed>) = 0 [pid 5218] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5219] memfd_create("syzkaller", 0) = 3 [pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5219] munmap(0x7fce62e23000, 524288) = 0 [pid 5219] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5219] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5219] close(3) = 0 [pid 5219] mkdir("./bus", 0777) = 0 [pid 5219] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5219] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5219] chdir("./bus") = 0 [pid 5219] ioctl(4, LOOP_CLR_FD) = 0 [pid 5219] close(4) = 0 [pid 5219] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5219] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5219] unlink("./file2") = 0 [pid 5219] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] <... futex resumed>) = 0 [pid 5218] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5219] <... futex resumed>) = 1 [pid 5218] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5219] mkdir(".", 0777 [pid 5218] <... mprotect resumed>) = 0 [pid 5219] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5218] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5220 attached [pid 5219] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5220] set_robust_list(0x7fce62ea29e0, 24 [pid 5218] <... clone resumed>, parent_tid=[5220], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5220 [pid 5218] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... set_robust_list resumed>) = 0 [pid 5220] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5220] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5220] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5219] <... mount resumed>) = 0 [pid 5219] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5219] chdir(".") = 0 [pid 5219] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] exit_group(0 [pid 5220] <... futex resumed>) = ? [pid 5219] <... futex resumed>) = ? [pid 5218] <... exit_group resumed>) = ? [pid 5220] +++ exited with 0 +++ [pid 5219] +++ exited with 0 +++ [pid 5218] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./50/binderfs") = 0 umount2("./50/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./50/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./50/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./50/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./50/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./50/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./50") = 0 mkdir("./51", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5221 ./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x555556e9d5e0, 24) = 0 [ 57.868446][ T5219] loop0: detected capacity change from 0 to 1024 [ 57.902031][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5221] chdir("./51") = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5221] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5221] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5222], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5222 [pid 5221] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5222 attached [pid 5222] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5222] memfd_create("syzkaller", 0) = 3 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5222] munmap(0x7fce62e23000, 524288) = 0 [pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5222] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5222] close(3) = 0 [pid 5222] mkdir("./bus", 0777) = 0 [pid 5222] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5222] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5222] chdir("./bus") = 0 [pid 5222] ioctl(4, LOOP_CLR_FD) = 0 [pid 5222] close(4) = 0 [pid 5222] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] <... futex resumed>) = 0 [pid 5221] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... futex resumed>) = 1 [pid 5222] unlink("./file2") = 0 [pid 5222] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] <... futex resumed>) = 0 [pid 5221] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5221] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5221] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5223], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5223 [pid 5221] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5223 attached [pid 5223] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5223] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5223] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] <... futex resumed>) = 0 [pid 5223] <... futex resumed>) = 1 [pid 5223] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5222] <... futex resumed>) = 1 [pid 5222] mkdir(".", 0777) = -1 EEXIST (File exists) [ 57.973911][ T5222] loop0: detected capacity change from 0 to 1024 [pid 5222] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5222] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5222] chdir(".") = 0 [pid 5222] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] exit_group(0 [pid 5223] <... futex resumed>) = ? [pid 5221] <... exit_group resumed>) = ? [pid 5223] +++ exited with 0 +++ [pid 5222] +++ exited with 0 +++ [pid 5221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./51/binderfs") = 0 umount2("./51/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./51/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./51/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./51/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./51/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./51/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./51") = 0 mkdir("./52", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5224 ./strace-static-x86_64: Process 5224 attached [pid 5224] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5224] chdir("./52") = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5224] setpgid(0, 0) = 0 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5224] write(3, "1000", 4) = 4 [pid 5224] close(3) = 0 [pid 5224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5224] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5224] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5224] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5225], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5225 [pid 5224] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5224] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5225 attached [pid 5225] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5225] memfd_create("syzkaller", 0) = 3 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5225] munmap(0x7fce62e23000, 524288) = 0 [pid 5225] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 58.020703][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5225] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5225] close(3) = 0 [pid 5225] mkdir("./bus", 0777) = 0 [pid 5225] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5225] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5225] chdir("./bus") = 0 [pid 5225] ioctl(4, LOOP_CLR_FD) = 0 [pid 5225] close(4) = 0 [pid 5225] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5224] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5224] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5225] unlink("./file2") = 0 [pid 5225] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5224] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5224] <... futex resumed>) = 0 [pid 5225] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5224] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5224] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5224] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5226 attached , parent_tid=[5226], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5226 [pid 5226] set_robust_list(0x7fce62ea29e0, 24 [pid 5224] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... mount resumed>) = 0 [pid 5224] <... futex resumed>) = 0 [pid 5225] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5224] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5225] <... openat resumed>) = 4 [pid 5225] chdir(".") = 0 [pid 5226] <... set_robust_list resumed>) = 0 [pid 5225] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5226] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5226] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... futex resumed>) = 0 [pid 5226] <... futex resumed>) = 1 [pid 5224] exit_group(0) = ? [pid 5226] +++ exited with 0 +++ [pid 5225] <... futex resumed>) = ? [pid 5225] +++ exited with 0 +++ [pid 5224] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./52/binderfs") = 0 umount2("./52/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./52/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./52/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./52/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./52/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./52/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./52") = 0 [ 58.081944][ T5225] loop0: detected capacity change from 0 to 1024 [ 58.120844][ T11] hfsplus: b-tree write err: -5, ino 4 mkdir("./53", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached [pid 5227] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5227] chdir("./53") = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5066] <... clone resumed>, child_tidptr=0x555556e9d5d0) = 5227 [pid 5227] <... openat resumed>) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5227] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5227] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5227] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5228 attached [pid 5228] set_robust_list(0x7fce6b2439e0, 24 [pid 5227] <... clone resumed>, parent_tid=[5228], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5228 [pid 5228] <... set_robust_list resumed>) = 0 [pid 5227] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5228] memfd_create("syzkaller", 0) = 3 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5228] munmap(0x7fce62e23000, 524288) = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5228] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5228] close(3) = 0 [pid 5228] mkdir("./bus", 0777) = 0 [pid 5228] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5228] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5228] chdir("./bus") = 0 [pid 5228] ioctl(4, LOOP_CLR_FD) = 0 [pid 5228] close(4) = 0 [pid 5228] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 1 [pid 5228] unlink("./file2") = 0 [pid 5228] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5228] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5227] <... futex resumed>) = 0 [pid 5228] mkdir(".", 0777 [pid 5227] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5227] <... futex resumed>) = 0 [pid 5228] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5227] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5227] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5229], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5229 [pid 5227] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5229 attached [pid 5229] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5229] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5229] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 5227] <... futex resumed>) = 1 [pid 5229] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5228] <... mount resumed>) = 0 [pid 5228] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5228] chdir(".") = 0 [pid 5228] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5228] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] exit_group(0 [pid 5228] <... futex resumed>) = ? [pid 5227] <... exit_group resumed>) = ? [pid 5228] +++ exited with 0 +++ [pid 5229] <... futex resumed>) = ? [pid 5229] +++ exited with 0 +++ [pid 5227] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./53/binderfs") = 0 umount2("./53/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./53/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./53/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./53/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./53/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./53/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./53") = 0 mkdir("./54", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 58.193650][ T5228] loop0: detected capacity change from 0 to 1024 [ 58.223049][ T2393] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5230 attached , child_tidptr=0x555556e9d5d0) = 5230 [pid 5230] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5230] chdir("./54") = 0 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5230] setpgid(0, 0) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5230] write(3, "1000", 4) = 4 [pid 5230] close(3) = 0 [pid 5230] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5230] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5230] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5230] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5231], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5231 [pid 5230] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5231 attached [pid 5231] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5231] memfd_create("syzkaller", 0) = 3 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5231] munmap(0x7fce62e23000, 524288) = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5231] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5231] close(3) = 0 [pid 5231] mkdir("./bus", 0777) = 0 [pid 5231] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5231] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5231] chdir("./bus") = 0 [pid 5231] ioctl(4, LOOP_CLR_FD) = 0 [pid 5231] close(4) = 0 [pid 5231] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... futex resumed>) = 0 [pid 5230] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5231] <... futex resumed>) = 1 [pid 5231] unlink("./file2") = 0 [pid 5231] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... futex resumed>) = 0 [pid 5230] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5230] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5230] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5232], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5232 [pid 5230] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5232 attached ) = 0 [pid 5230] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5232] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5231] <... futex resumed>) = 1 [pid 5231] mkdir(".", 0777) = -1 EEXIST (File exists) [ 58.303080][ T5231] loop0: detected capacity change from 0 to 1024 [pid 5231] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5232] <... openat resumed>) = -1 EEXIST (File exists) [pid 5232] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... futex resumed>) = 0 [pid 5232] <... futex resumed>) = 1 [pid 5232] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5231] <... mount resumed>) = 0 [pid 5231] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5231] chdir(".") = 0 [pid 5231] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5230] exit_group(0) = ? [pid 5232] <... futex resumed>) = ? [pid 5232] +++ exited with 0 +++ [pid 5231] <... futex resumed>) = ? [pid 5231] +++ exited with 0 +++ [pid 5230] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./54/binderfs") = 0 umount2("./54/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./54/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./54/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./54/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./54/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./54/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./54") = 0 mkdir("./55", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5233 ./strace-static-x86_64: Process 5233 attached [pid 5233] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5233] chdir("./55") = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] setpgid(0, 0) = 0 [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1000", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5233] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5233] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5233] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5234], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5234 [pid 5233] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5234 attached [pid 5234] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5234] memfd_create("syzkaller", 0) = 3 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [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"..., 524288) = 524288 [pid 5234] munmap(0x7fce62e23000, 524288) = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 58.351990][ T9] hfsplus: b-tree write err: -5, ino 4 [pid 5234] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5234] close(3) = 0 [pid 5234] mkdir("./bus", 0777) = 0 [pid 5234] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5234] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5234] chdir("./bus") = 0 [pid 5234] ioctl(4, LOOP_CLR_FD) = 0 [pid 5234] close(4) = 0 [pid 5234] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] <... futex resumed>) = 0 [pid 5234] <... futex resumed>) = 1 [pid 5233] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] unlink("./file2") = 0 [pid 5234] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5234] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] <... futex resumed>) = 0 [pid 5234] mkdir(".", 0777 [pid 5233] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5234] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5233] <... mmap resumed>) = 0x7fce62e82000 [pid 5233] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5233] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5235 attached [pid 5234] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5233] <... clone resumed>, parent_tid=[5235], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5235 [pid 5233] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5235] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5234] <... mount resumed>) = 0 [pid 5234] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5235] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5234] chdir(".") = 0 [pid 5234] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] <... openat resumed>) = -1 EEXIST (File exists) [pid 5235] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] <... futex resumed>) = 0 [pid 5233] exit_group(0 [pid 5234] <... futex resumed>) = ? [pid 5233] <... exit_group resumed>) = ? [pid 5234] +++ exited with 0 +++ [pid 5235] <... futex resumed>) = ? [pid 5235] +++ exited with 0 +++ [pid 5233] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./55/binderfs") = 0 umount2("./55/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./55/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./55/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./55/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./55/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./55/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./55") = 0 mkdir("./56", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5236 attached , child_tidptr=0x555556e9d5d0) = 5236 [pid 5236] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5236] chdir("./56") = 0 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5236] setpgid(0, 0) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1000", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5236] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5236] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [ 58.405544][ T5234] loop0: detected capacity change from 0 to 1024 [ 58.440162][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5236] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5237 attached , parent_tid=[5237], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5237 [pid 5237] set_robust_list(0x7fce6b2439e0, 24 [pid 5236] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5236] <... futex resumed>) = 0 [pid 5236] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5237] memfd_create("syzkaller", 0) = 3 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [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"..., 524288) = 524288 [pid 5237] munmap(0x7fce62e23000, 524288) = 0 [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5237] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5237] close(3) = 0 [pid 5237] mkdir("./bus", 0777) = 0 [pid 5237] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5237] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5237] chdir("./bus") = 0 [pid 5237] ioctl(4, LOOP_CLR_FD) = 0 [pid 5237] close(4) = 0 [pid 5237] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5236] <... futex resumed>) = 0 [pid 5236] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5236] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5237] unlink("./file2") = 0 [pid 5237] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5236] <... futex resumed>) = 0 [pid 5237] mkdir(".", 0777 [pid 5236] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5237] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5236] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5236] <... futex resumed>) = 0 [pid 5236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5236] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5236] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5238 attached , parent_tid=[5238], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5238 [pid 5238] set_robust_list(0x7fce62ea29e0, 24 [pid 5236] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5236] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... set_robust_list resumed>) = 0 [pid 5238] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5238] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5236] <... futex resumed>) = 0 [pid 5238] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] <... mount resumed>) = 0 [pid 5237] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5237] chdir(".") = 0 [pid 5237] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5237] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5236] exit_group(0 [pid 5237] <... futex resumed>) = ? [pid 5236] <... exit_group resumed>) = ? [pid 5237] +++ exited with 0 +++ [pid 5238] <... futex resumed>) = ? [pid 5238] +++ exited with 0 +++ [pid 5236] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./56/binderfs") = 0 umount2("./56/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./56/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./56/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./56/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./56/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./56/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./56") = 0 mkdir("./57", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5239 ./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5239] chdir("./57") = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 [pid 5239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5239] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5239] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5239] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5240], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5240 [pid 5239] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5240 attached [pid 5240] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5240] memfd_create("syzkaller", 0) = 3 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [ 58.497500][ T5237] loop0: detected capacity change from 0 to 1024 [ 58.523988][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5240] munmap(0x7fce62e23000, 524288) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5240] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5240] close(3) = 0 [pid 5240] mkdir("./bus", 0777) = 0 [pid 5240] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5240] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5240] chdir("./bus") = 0 [pid 5240] ioctl(4, LOOP_CLR_FD) = 0 [pid 5240] close(4) = 0 [pid 5240] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] unlink("./file2") = 0 [pid 5240] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5239] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5239] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5241], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5241 [pid 5239] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5240] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5241 attached [pid 5241] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5241] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5241] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5241] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5240] <... mount resumed>) = 0 [pid 5240] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5240] chdir(".") = 0 [pid 5240] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] exit_group(0) = ? [pid 5241] <... futex resumed>) = ? [pid 5240] <... futex resumed>) = ? [pid 5240] +++ exited with 0 +++ [pid 5241] +++ exited with 0 +++ [pid 5239] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./57/binderfs") = 0 umount2("./57/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./57/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./57/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./57/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./57/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./57/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./57") = 0 mkdir("./58", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 58.580811][ T5240] loop0: detected capacity change from 0 to 1024 [ 58.607666][ T41] hfsplus: b-tree write err: -5, ino 4 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5242 ./strace-static-x86_64: Process 5242 attached [pid 5242] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5242] chdir("./58") = 0 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5242] setpgid(0, 0) = 0 [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5242] write(3, "1000", 4) = 4 [pid 5242] close(3) = 0 [pid 5242] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5242] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5242] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5242] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5243 attached [pid 5243] set_robust_list(0x7fce6b2439e0, 24 [pid 5242] <... clone resumed>, parent_tid=[5243], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5243 [pid 5243] <... set_robust_list resumed>) = 0 [pid 5242] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5242] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5243] memfd_create("syzkaller", 0) = 3 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5243] munmap(0x7fce62e23000, 524288) = 0 [pid 5243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5243] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5243] close(3) = 0 [pid 5243] mkdir("./bus", 0777) = 0 [pid 5243] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5243] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5243] chdir("./bus") = 0 [pid 5243] ioctl(4, LOOP_CLR_FD) = 0 [pid 5243] close(4) = 0 [pid 5243] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5243] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5242] <... futex resumed>) = 0 [pid 5242] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... futex resumed>) = 0 [pid 5242] <... futex resumed>) = 1 [pid 5243] unlink("./file2" [pid 5242] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5243] <... unlink resumed>) = 0 [pid 5243] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5242] <... futex resumed>) = 0 [pid 5243] mkdir(".", 0777 [pid 5242] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5242] <... futex resumed>) = 0 [pid 5243] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5242] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5242] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5242] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5244], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5244 [pid 5242] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5242] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5244 attached [pid 5244] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5244] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5243] <... mount resumed>) = 0 [pid 5243] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5243] chdir(".") = 0 [pid 5243] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5242] <... futex resumed>) = 0 [pid 5242] exit_group(0 [pid 5243] <... futex resumed>) = ? [pid 5242] <... exit_group resumed>) = ? [pid 5243] +++ exited with 0 +++ [pid 5244] <... futex resumed>) = ? [pid 5244] +++ exited with 0 +++ [pid 5242] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./58/binderfs") = 0 umount2("./58/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./58/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./58/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./58/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./58/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./58/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./58") = 0 mkdir("./59", 0777) = 0 [ 58.689046][ T5243] loop0: detected capacity change from 0 to 1024 [ 58.724826][ T41] hfsplus: b-tree write err: -5, ino 4 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5245 ./strace-static-x86_64: Process 5245 attached [pid 5245] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5245] chdir("./59") = 0 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5245] setpgid(0, 0) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5245] write(3, "1000", 4) = 4 [pid 5245] close(3) = 0 [pid 5245] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5245] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5245] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5245] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5246 attached [pid 5246] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5245] <... clone resumed>, parent_tid=[5246], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5246 [pid 5245] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5246] memfd_create("syzkaller", 0) = 3 [pid 5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5246] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5246] munmap(0x7fce62e23000, 524288) = 0 [pid 5246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5246] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5246] close(3) = 0 [pid 5246] mkdir("./bus", 0777) = 0 [pid 5246] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5246] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5246] chdir("./bus") = 0 [pid 5246] ioctl(4, LOOP_CLR_FD) = 0 [pid 5246] close(4) = 0 [pid 5246] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... futex resumed>) = 1 [pid 5246] unlink("./file2") = 0 [pid 5246] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5245] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5245] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5247], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5247 [pid 5245] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5247 attached [pid 5247] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5246] mkdir(".", 0777 [pid 5247] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5246] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5246] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5247] <... openat resumed>) = -1 EEXIST (File exists) [pid 5247] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5247] <... futex resumed>) = 1 [pid 5247] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5246] <... mount resumed>) = 0 [pid 5246] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5246] chdir(".") = 0 [pid 5246] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5246] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5245] exit_group(0 [pid 5247] <... futex resumed>) = ? [pid 5246] <... futex resumed>) = ? [pid 5245] <... exit_group resumed>) = ? [pid 5247] +++ exited with 0 +++ [pid 5246] +++ exited with 0 +++ [pid 5245] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./59/binderfs") = 0 umount2("./59/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./59/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./59/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./59/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./59/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./59/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./59") = 0 mkdir("./60", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5248 ./strace-static-x86_64: Process 5248 attached [pid 5248] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5248] chdir("./60") = 0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5248] setpgid(0, 0) = 0 [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5248] write(3, "1000", 4) = 4 [pid 5248] close(3) = 0 [pid 5248] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5248] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5248] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5248] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5249], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5249 [pid 5248] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5248] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5249 attached [pid 5249] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5249] memfd_create("syzkaller", 0) = 3 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 58.800570][ T5246] loop0: detected capacity change from 0 to 1024 [ 58.832462][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5249] munmap(0x7fce62e23000, 524288) = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5249] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5249] close(3) = 0 [pid 5249] mkdir("./bus", 0777) = 0 [pid 5249] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5249] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5249] chdir("./bus") = 0 [pid 5249] ioctl(4, LOOP_CLR_FD) = 0 [pid 5249] close(4) = 0 [pid 5249] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5248] <... futex resumed>) = 0 [pid 5248] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5248] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5249] <... futex resumed>) = 0 [pid 5249] unlink("./file2") = 0 [pid 5249] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5248] <... futex resumed>) = 0 [pid 5248] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5248] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] mkdir(".", 0777 [pid 5248] <... futex resumed>) = 0 [pid 5248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5249] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5248] <... mmap resumed>) = 0x7fce62e82000 [pid 5249] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5248] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5248] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5250], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5250 [pid 5248] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5248] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5250 attached [pid 5250] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5250] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5249] <... mount resumed>) = 0 [pid 5249] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5249] chdir(".") = 0 [pid 5250] <... openat resumed>) = -1 EEXIST (File exists) [pid 5250] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5248] <... futex resumed>) = 0 [pid 5248] exit_group(0) = ? [pid 5249] <... futex resumed>) = ? [pid 5249] +++ exited with 0 +++ [pid 5250] <... futex resumed>) = ? [pid 5250] +++ exited with 0 +++ [pid 5248] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./60/binderfs") = 0 umount2("./60/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./60/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./60/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./60/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./60/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./60/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./60") = 0 mkdir("./61", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 58.886480][ T5249] loop0: detected capacity change from 0 to 1024 [ 58.908554][ T11] hfsplus: b-tree write err: -5, ino 4 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5251 ./strace-static-x86_64: Process 5251 attached [pid 5251] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5251] chdir("./61") = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5251] setpgid(0, 0) = 0 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] write(3, "1000", 4) = 4 [pid 5251] close(3) = 0 [pid 5251] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5251] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5251] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5251] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5252], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5252 [pid 5251] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5252 attached [pid 5252] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5252] memfd_create("syzkaller", 0) = 3 [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5252] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5252] munmap(0x7fce62e23000, 524288) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5252] close(3) = 0 [pid 5252] mkdir("./bus", 0777) = 0 [pid 5252] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5252] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5252] chdir("./bus") = 0 [pid 5252] ioctl(4, LOOP_CLR_FD) = 0 [pid 5252] close(4) = 0 [pid 5252] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] unlink("./file2") = 0 [pid 5252] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5251] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5251] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5253 attached [pid 5252] <... futex resumed>) = 1 [pid 5251] <... clone resumed>, parent_tid=[5253], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5253 [pid 5253] set_robust_list(0x7fce62ea29e0, 24 [pid 5252] mkdir(".", 0777 [pid 5253] <... set_robust_list resumed>) = 0 [pid 5252] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5253] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5252] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5251] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5251] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] <... futex resumed>) = 0 [pid 5253] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5253] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5253] <... futex resumed>) = 1 [pid 5253] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5252] <... mount resumed>) = 0 [pid 5252] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5252] chdir(".") = 0 [pid 5252] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5252] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] exit_group(0) = ? [pid 5253] <... futex resumed>) = ? [pid 5252] <... futex resumed>) = ? [pid 5253] +++ exited with 0 +++ [pid 5252] +++ exited with 0 +++ [pid 5251] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./61/binderfs") = 0 umount2("./61/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./61/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./61/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./61/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./61/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./61/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./61") = 0 mkdir("./62", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5254 ./strace-static-x86_64: Process 5254 attached [pid 5254] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5254] chdir("./62") = 0 [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5254] setpgid(0, 0) = 0 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5254] write(3, "1000", 4) = 4 [pid 5254] close(3) = 0 [pid 5254] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5254] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5254] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5254] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5255], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5255 [pid 5254] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5255 attached [pid 5255] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5255] memfd_create("syzkaller", 0) = 3 [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 58.978297][ T5252] loop0: detected capacity change from 0 to 1024 [ 59.007551][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5255] munmap(0x7fce62e23000, 524288) = 0 [pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5255] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5255] close(3) = 0 [pid 5255] mkdir("./bus", 0777) = 0 [pid 5255] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5255] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5255] chdir("./bus") = 0 [pid 5255] ioctl(4, LOOP_CLR_FD) = 0 [pid 5255] close(4) = 0 [pid 5255] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5254] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5255] unlink("./file2") = 0 [pid 5255] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5254] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5255] mkdir(".", 0777 [pid 5254] <... mmap resumed>) = 0x7fce62e82000 [pid 5254] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5255] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5254] <... mprotect resumed>) = 0 [pid 5254] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5256 attached [pid 5255] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5254] <... clone resumed>, parent_tid=[5256], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5256 [pid 5254] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5256] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5256] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5256] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5255] <... mount resumed>) = 0 [pid 5255] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5255] chdir(".") = 0 [pid 5255] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5254] exit_group(0 [pid 5256] <... futex resumed>) = ? [pid 5254] <... exit_group resumed>) = ? [pid 5256] +++ exited with 0 +++ [pid 5255] <... futex resumed>) = ? [pid 5255] +++ exited with 0 +++ [pid 5254] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./62/binderfs") = 0 umount2("./62/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./62/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./62/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./62/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./62/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./62/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./62") = 0 mkdir("./63", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5257 ./strace-static-x86_64: Process 5257 attached [pid 5257] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5257] chdir("./63") = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5257] setpgid(0, 0) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 59.062357][ T5255] loop0: detected capacity change from 0 to 1024 [ 59.099145][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5257] write(3, "1000", 4) = 4 [pid 5257] close(3) = 0 [pid 5257] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5257] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5257] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5257] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5258], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5258 [pid 5257] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5258 attached [pid 5258] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5258] memfd_create("syzkaller", 0) = 3 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5258] munmap(0x7fce62e23000, 524288) = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5258] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5258] close(3) = 0 [pid 5258] mkdir("./bus", 0777) = 0 [pid 5258] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5258] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5258] chdir("./bus") = 0 [pid 5258] ioctl(4, LOOP_CLR_FD) = 0 [pid 5258] close(4) = 0 [pid 5258] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5258] <... futex resumed>) = 1 [pid 5257] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] unlink("./file2" [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... unlink resumed>) = 0 [pid 5258] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5258] <... futex resumed>) = 1 [pid 5257] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] mkdir(".", 0777 [pid 5257] <... futex resumed>) = 0 [pid 5258] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5257] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5257] <... futex resumed>) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5257] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5258] <... mount resumed>) = 0 [pid 5257] <... mprotect resumed>) = 0 [pid 5258] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5257] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5259 attached [pid 5258] <... openat resumed>) = 4 [pid 5257] <... clone resumed>, parent_tid=[5259], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5259 [pid 5259] set_robust_list(0x7fce62ea29e0, 24 [pid 5258] chdir("." [pid 5259] <... set_robust_list resumed>) = 0 [pid 5257] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5258] <... chdir resumed>) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5259] <... openat resumed>) = -1 EEXIST (File exists) [pid 5258] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... futex resumed>) = 0 [pid 5257] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5259] <... futex resumed>) = 0 [pid 5258] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5259] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] exit_group(0 [pid 5259] <... futex resumed>) = ? [pid 5258] <... futex resumed>) = ? [pid 5257] <... exit_group resumed>) = ? [pid 5259] +++ exited with 0 +++ [pid 5258] +++ exited with 0 +++ [pid 5257] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./63/binderfs") = 0 umount2("./63/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./63/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./63/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./63/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./63/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./63/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./63") = 0 mkdir("./64", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5260 attached , child_tidptr=0x555556e9d5d0) = 5260 [pid 5260] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5260] chdir("./64") = 0 [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5260] setpgid(0, 0) = 0 [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5260] write(3, "1000", 4) = 4 [pid 5260] close(3) = 0 [pid 5260] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5260] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 59.161734][ T5258] loop0: detected capacity change from 0 to 1024 [ 59.187349][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5260] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5260] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5260] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5261 attached , parent_tid=[5261], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5261 [pid 5261] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5261] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5260] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5260] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5261] memfd_create("syzkaller", 0) = 3 [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5261] munmap(0x7fce62e23000, 524288) = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5261] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5261] close(3) = 0 [pid 5261] mkdir("./bus", 0777) = 0 [pid 5261] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5261] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5261] chdir("./bus") = 0 [pid 5261] ioctl(4, LOOP_CLR_FD) = 0 [pid 5261] close(4) = 0 [pid 5261] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5260] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5260] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5261] unlink("./file2") = 0 [pid 5261] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5260] <... futex resumed>) = 0 [pid 5260] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5260] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5260] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5260] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5260] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5262], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5262 [pid 5260] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5260] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5261] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5261] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5262 attached [pid 5262] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5262] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5262] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5260] <... futex resumed>) = 0 [pid 5262] <... futex resumed>) = 1 [pid 5262] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5261] <... mount resumed>) = 0 [pid 5261] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5261] chdir(".") = 0 [pid 5261] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5260] exit_group(0 [pid 5261] <... futex resumed>) = ? [pid 5260] <... exit_group resumed>) = ? [pid 5261] +++ exited with 0 +++ [pid 5262] <... futex resumed>) = ? [pid 5262] +++ exited with 0 +++ [pid 5260] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./64/binderfs") = 0 umount2("./64/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./64/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./64/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./64/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./64/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./64/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./64") = 0 mkdir("./65", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 59.256289][ T5261] loop0: detected capacity change from 0 to 1024 [ 59.285722][ T41] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5263 ./strace-static-x86_64: Process 5263 attached [pid 5263] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5263] chdir("./65") = 0 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5263] setpgid(0, 0) = 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5263] write(3, "1000", 4) = 4 [pid 5263] close(3) = 0 [pid 5263] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5263] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5263] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5263] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5264], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5264 [pid 5263] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5264 attached [pid 5264] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5264] memfd_create("syzkaller", 0) = 3 [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5264] munmap(0x7fce62e23000, 524288) = 0 [pid 5264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5264] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5264] close(3) = 0 [pid 5264] mkdir("./bus", 0777) = 0 [pid 5264] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5264] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5264] chdir("./bus") = 0 [pid 5264] ioctl(4, LOOP_CLR_FD) = 0 [pid 5264] close(4) = 0 [pid 5264] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] unlink("./file2") = 0 [pid 5264] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5263] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5264] mkdir(".", 0777 [pid 5263] <... mprotect resumed>) = 0 [pid 5263] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5264] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5263] <... clone resumed>, parent_tid=[5265], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5265 [pid 5264] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5263] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5265 attached [pid 5265] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5265] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5265] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5265] <... futex resumed>) = 1 [pid 5265] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5264] <... mount resumed>) = 0 [pid 5264] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5264] chdir(".") = 0 [pid 5264] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5264] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] exit_group(0) = ? [pid 5264] <... futex resumed>) = ? [pid 5264] +++ exited with 0 +++ [pid 5265] <... futex resumed>) = ? [pid 5265] +++ exited with 0 +++ [pid 5263] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./65/binderfs") = 0 umount2("./65/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./65/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./65/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./65/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./65/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./65/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./65") = 0 mkdir("./66", 0777) = 0 [ 59.361509][ T5264] loop0: detected capacity change from 0 to 1024 [ 59.397801][ T41] hfsplus: b-tree write err: -5, ino 4 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5266 ./strace-static-x86_64: Process 5266 attached [pid 5266] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5266] chdir("./66") = 0 [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5266] setpgid(0, 0) = 0 [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5266] write(3, "1000", 4) = 4 [pid 5266] close(3) = 0 [pid 5266] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5266] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5266] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5266] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5267 attached , parent_tid=[5267], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5267 [pid 5267] set_robust_list(0x7fce6b2439e0, 24 [pid 5266] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5267] <... set_robust_list resumed>) = 0 [pid 5267] memfd_create("syzkaller", 0) = 3 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5267] munmap(0x7fce62e23000, 524288) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5267] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5267] close(3) = 0 [pid 5267] mkdir("./bus", 0777) = 0 [pid 5267] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5267] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5267] chdir("./bus") = 0 [pid 5267] ioctl(4, LOOP_CLR_FD) = 0 [pid 5267] close(4) = 0 [pid 5267] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5267] unlink("./file2") = 0 [pid 5267] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5266] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5266] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5268], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5268 [pid 5266] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5267] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5267] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5268 attached [pid 5268] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5268] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5268] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5268] <... futex resumed>) = 1 [pid 5268] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] <... mount resumed>) = 0 [pid 5267] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5267] chdir(".") = 0 [pid 5267] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] exit_group(0 [pid 5267] <... futex resumed>) = ? [pid 5266] <... exit_group resumed>) = ? [pid 5267] +++ exited with 0 +++ [pid 5268] <... futex resumed>) = ? [pid 5268] +++ exited with 0 +++ [pid 5266] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./66/binderfs") = 0 umount2("./66/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./66/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./66/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./66/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./66/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./66/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./66") = 0 mkdir("./67", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5269 ./strace-static-x86_64: Process 5269 attached [pid 5269] set_robust_list(0x555556e9d5e0, 24) = 0 [ 59.474232][ T5267] loop0: detected capacity change from 0 to 1024 [ 59.502953][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5269] chdir("./67") = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5269] setpgid(0, 0) = 0 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5269] write(3, "1000", 4) = 4 [pid 5269] close(3) = 0 [pid 5269] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5269] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5269] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5269] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5270 attached [pid 5270] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5270] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] <... clone resumed>, parent_tid=[5270], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5270 [pid 5269] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5269] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5270] memfd_create("syzkaller", 0) = 3 [pid 5270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5270] munmap(0x7fce62e23000, 524288) = 0 [pid 5270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5270] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5270] close(3) = 0 [pid 5270] mkdir("./bus", 0777) = 0 [pid 5270] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5270] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5270] chdir("./bus") = 0 [pid 5270] ioctl(4, LOOP_CLR_FD) = 0 [pid 5270] close(4) = 0 [pid 5270] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5269] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] unlink("./file2") = 0 [pid 5270] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5269] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5269] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5271], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5271 [pid 5269] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5271 attached [pid 5270] <... futex resumed>) = 1 [pid 5271] set_robust_list(0x7fce62ea29e0, 24 [pid 5269] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5270] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5271] <... set_robust_list resumed>) = 0 [pid 5271] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5271] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5271] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] <... futex resumed>) = 0 [pid 5270] <... mount resumed>) = 0 [pid 5270] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5270] chdir(".") = 0 [pid 5270] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5270] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] exit_group(0 [pid 5271] <... futex resumed>) = ? [pid 5270] <... futex resumed>) = ? [pid 5269] <... exit_group resumed>) = ? [pid 5271] +++ exited with 0 +++ [pid 5270] +++ exited with 0 +++ [pid 5269] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./67/binderfs") = 0 umount2("./67/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./67/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./67/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./67/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./67/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./67/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./67") = 0 mkdir("./68", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5272 ./strace-static-x86_64: Process 5272 attached [pid 5272] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5272] chdir("./68") = 0 [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5272] setpgid(0, 0) = 0 [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5272] write(3, "1000", 4) = 4 [pid 5272] close(3) = 0 [pid 5272] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5272] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5272] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [ 59.575447][ T5270] loop0: detected capacity change from 0 to 1024 [ 59.609509][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5272] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5273 attached , parent_tid=[5273], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5273 [pid 5272] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] set_robust_list(0x7fce6b2439e0, 24 [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5273] <... set_robust_list resumed>) = 0 [pid 5273] memfd_create("syzkaller", 0) = 3 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5273] munmap(0x7fce62e23000, 524288) = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5273] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5273] close(3) = 0 [pid 5273] mkdir("./bus", 0777) = 0 [pid 5273] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5273] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5273] chdir("./bus") = 0 [pid 5273] ioctl(4, LOOP_CLR_FD) = 0 [pid 5273] close(4) = 0 [pid 5273] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5273] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... futex resumed>) = 0 [pid 5273] unlink("./file2") = 0 [pid 5273] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... futex resumed>) = 0 [pid 5273] <... futex resumed>) = 1 [pid 5272] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] mkdir(".", 0777 [pid 5272] <... futex resumed>) = 0 [pid 5273] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5272] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5272] <... futex resumed>) = 0 [pid 5272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5272] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5272] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5274], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5274 [pid 5272] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5274 attached [pid 5273] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5274] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5273] <... openat resumed>) = 4 [pid 5273] chdir("." [pid 5274] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5273] <... chdir resumed>) = 0 [pid 5273] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5274] <... openat resumed>) = -1 EEXIST (File exists) [pid 5273] <... futex resumed>) = 0 [pid 5274] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] exit_group(0 [pid 5273] <... futex resumed>) = ? [pid 5272] <... exit_group resumed>) = ? [pid 5273] +++ exited with 0 +++ [pid 5274] +++ exited with 0 +++ [pid 5272] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./68/binderfs") = 0 [ 59.666734][ T5273] loop0: detected capacity change from 0 to 1024 [ 59.690144][ T2393] hfsplus: b-tree write err: -5, ino 4 umount2("./68/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./68/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./68/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./68/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./68/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./68/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./68") = 0 mkdir("./69", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5275 ./strace-static-x86_64: Process 5275 attached [pid 5275] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5275] chdir("./69") = 0 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5275] setpgid(0, 0) = 0 [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5275] write(3, "1000", 4) = 4 [pid 5275] close(3) = 0 [pid 5275] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5275] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5275] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5275] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5276], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5276 [pid 5275] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5276 attached [pid 5276] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5276] memfd_create("syzkaller", 0) = 3 [pid 5276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5276] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5276] munmap(0x7fce62e23000, 524288) = 0 [pid 5276] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5276] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5276] close(3) = 0 [pid 5276] mkdir("./bus", 0777) = 0 [pid 5276] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5276] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5276] chdir("./bus") = 0 [pid 5276] ioctl(4, LOOP_CLR_FD) = 0 [pid 5276] close(4) = 0 [pid 5276] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... futex resumed>) = 0 [pid 5275] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] <... futex resumed>) = 1 [pid 5276] unlink("./file2") = 0 [pid 5276] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... futex resumed>) = 0 [pid 5275] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5275] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5275] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5277], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5277 [pid 5275] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] <... futex resumed>) = 1 [pid 5276] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5276] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5277 attached [pid 5277] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5277] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5277] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5275] <... futex resumed>) = 0 [pid 5277] <... futex resumed>) = 1 [pid 5277] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5276] <... mount resumed>) = 0 [pid 5276] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5276] chdir(".") = 0 [pid 5276] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5275] exit_group(0) = ? [pid 5277] <... futex resumed>) = ? [pid 5277] +++ exited with 0 +++ [pid 5276] <... futex resumed>) = ? [pid 5276] +++ exited with 0 +++ [pid 5275] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./69/binderfs") = 0 umount2("./69/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./69/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./69/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./69/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./69/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./69/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./69") = 0 mkdir("./70", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5278 ./strace-static-x86_64: Process 5278 attached [pid 5278] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5278] chdir("./70") = 0 [ 59.752675][ T5276] loop0: detected capacity change from 0 to 1024 [ 59.775818][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5278] setpgid(0, 0) = 0 [pid 5278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5278] write(3, "1000", 4) = 4 [pid 5278] close(3) = 0 [pid 5278] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5278] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5278] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5278] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5278] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5279 attached , parent_tid=[5279], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5279 [pid 5278] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5278] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5279] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5279] memfd_create("syzkaller", 0) = 3 [pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5279] munmap(0x7fce62e23000, 524288) = 0 [pid 5279] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5279] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5279] close(3) = 0 [pid 5279] mkdir("./bus", 0777) = 0 [pid 5279] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5279] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5279] chdir("./bus") = 0 [pid 5279] ioctl(4, LOOP_CLR_FD) = 0 [pid 5279] close(4) = 0 [pid 5279] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5279] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5278] <... futex resumed>) = 0 [pid 5278] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... futex resumed>) = 0 [pid 5278] <... futex resumed>) = 1 [pid 5279] unlink("./file2" [pid 5278] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... unlink resumed>) = 0 [pid 5279] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5279] mkdir(".", 0777 [pid 5278] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5279] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5278] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5278] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5279] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5278] <... mmap resumed>) = 0x7fce62e82000 [pid 5278] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5278] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5280], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5280 [pid 5278] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5278] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... mount resumed>) = 0 [pid 5279] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5279] chdir(".") = 0 [pid 5279] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5279] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5280 attached [pid 5280] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5280] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5280] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5280] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5278] exit_group(0) = ? [pid 5279] <... futex resumed>) = ? [pid 5279] +++ exited with 0 +++ [pid 5280] <... futex resumed>) = ? [pid 5280] +++ exited with 0 +++ [pid 5278] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./70/binderfs") = 0 umount2("./70/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./70/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./70/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./70/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./70/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./70/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./70") = 0 mkdir("./71", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5281 ./strace-static-x86_64: Process 5281 attached [pid 5281] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5281] chdir("./71") = 0 [ 59.852539][ T5279] loop0: detected capacity change from 0 to 1024 [ 59.874117][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5281] setpgid(0, 0) = 0 [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5281] write(3, "1000", 4) = 4 [pid 5281] close(3) = 0 [pid 5281] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5281] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5281] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5281] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5282 attached , parent_tid=[5282], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5282 [pid 5282] set_robust_list(0x7fce6b2439e0, 24 [pid 5281] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... set_robust_list resumed>) = 0 [pid 5281] <... futex resumed>) = 0 [pid 5281] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5282] memfd_create("syzkaller", 0) = 3 [pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5282] munmap(0x7fce62e23000, 524288) = 0 [pid 5282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5282] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5282] close(3) = 0 [pid 5282] mkdir("./bus", 0777) = 0 [pid 5282] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5282] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5282] chdir("./bus") = 0 [pid 5282] ioctl(4, LOOP_CLR_FD) = 0 [pid 5282] close(4) = 0 [pid 5282] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5282] unlink("./file2" [pid 5281] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] <... unlink resumed>) = 0 [pid 5282] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5281] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] mkdir(".", 0777 [pid 5281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5282] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5281] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5282] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5281] <... mprotect resumed>) = 0 [pid 5281] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5283 attached [pid 5283] set_robust_list(0x7fce62ea29e0, 24 [pid 5281] <... clone resumed>, parent_tid=[5283], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5283 [pid 5281] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... set_robust_list resumed>) = 0 [pid 5283] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5283] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] <... futex resumed>) = 0 [pid 5283] <... futex resumed>) = 1 [pid 5283] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] <... mount resumed>) = 0 [pid 5282] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5282] chdir(".") = 0 [pid 5282] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5281] exit_group(0) = ? [pid 5282] <... futex resumed>) = ? [pid 5283] <... futex resumed>) = ? [pid 5282] +++ exited with 0 +++ [pid 5283] +++ exited with 0 +++ [pid 5281] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./71/binderfs") = 0 umount2("./71/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./71/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./71/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./71/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./71/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./71/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./71") = 0 mkdir("./72", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5284 ./strace-static-x86_64: Process 5284 attached [pid 5284] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5284] chdir("./72") = 0 [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5284] setpgid(0, 0) = 0 [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5284] write(3, "1000", 4) = 4 [pid 5284] close(3) = 0 [pid 5284] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5284] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5284] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5284] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5285 attached , parent_tid=[5285], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5285 [ 59.953710][ T5282] loop0: detected capacity change from 0 to 1024 [ 59.989836][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5285] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5285] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5285] memfd_create("syzkaller", 0 [pid 5284] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5285] <... memfd_create resumed>) = 3 [pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5285] munmap(0x7fce62e23000, 524288) = 0 [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5285] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5285] close(3) = 0 [pid 5285] mkdir("./bus", 0777) = 0 [pid 5285] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5285] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5285] chdir("./bus") = 0 [pid 5285] ioctl(4, LOOP_CLR_FD) = 0 [pid 5285] close(4) = 0 [pid 5285] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5284] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 1 [pid 5285] unlink("./file2") = 0 [pid 5285] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5284] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5284] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5284] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5286], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5286 [pid 5284] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 1 [pid 5285] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5285] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5286 attached [pid 5286] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5286] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5285] <... mount resumed>) = 0 [pid 5285] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 5 [pid 5285] chdir(".") = 0 [pid 5285] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5285] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] <... openat resumed>) = -1 EEXIST (File exists) [pid 5286] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5284] <... futex resumed>) = 0 [pid 5284] exit_group(0) = ? [pid 5285] <... futex resumed>) = ? [pid 5285] +++ exited with 0 +++ [pid 5286] +++ exited with 0 +++ [pid 5284] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./72/binderfs") = 0 umount2("./72/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./72/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./72/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./72/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./72/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./72/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./72") = 0 mkdir("./73", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5287 [ 60.045292][ T5285] loop0: detected capacity change from 0 to 1024 [ 60.065026][ T2393] hfsplus: b-tree write err: -5, ino 4 ./strace-static-x86_64: Process 5287 attached [pid 5287] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5287] chdir("./73") = 0 [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5287] setpgid(0, 0) = 0 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5287] write(3, "1000", 4) = 4 [pid 5287] close(3) = 0 [pid 5287] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5287] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5287] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5287] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5288 attached , parent_tid=[5288], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5288 [pid 5287] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5288] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5288] memfd_create("syzkaller", 0) = 3 [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5288] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5288] munmap(0x7fce62e23000, 524288) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5288] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5288] close(3) = 0 [pid 5288] mkdir("./bus", 0777) = 0 [pid 5288] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5288] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5288] chdir("./bus") = 0 [pid 5288] ioctl(4, LOOP_CLR_FD) = 0 [pid 5288] close(4) = 0 [pid 5288] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] <... futex resumed>) = 1 [pid 5288] unlink("./file2") = 0 [pid 5288] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5287] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5288] <... futex resumed>) = 1 [pid 5287] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5288] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5287] <... clone resumed>, parent_tid=[5289], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5289 [pid 5288] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5287] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5289 attached [pid 5289] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5289] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5289] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... futex resumed>) = 0 [pid 5289] <... futex resumed>) = 1 [pid 5289] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] <... mount resumed>) = 0 [pid 5288] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5288] chdir(".") = 0 [pid 5288] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5288] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5287] exit_group(0 [pid 5288] <... futex resumed>) = ? [pid 5287] <... exit_group resumed>) = ? [pid 5288] +++ exited with 0 +++ [pid 5289] <... futex resumed>) = ? [pid 5289] +++ exited with 0 +++ [pid 5287] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./73/binderfs") = 0 umount2("./73/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./73/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./73/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./73/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./73/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./73/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./73") = 0 mkdir("./74", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5290 ./strace-static-x86_64: Process 5290 attached [pid 5290] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5290] chdir("./74") = 0 [ 60.140153][ T5288] loop0: detected capacity change from 0 to 1024 [ 60.171918][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5290] setpgid(0, 0) = 0 [pid 5290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5290] write(3, "1000", 4) = 4 [pid 5290] close(3) = 0 [pid 5290] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5290] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5290] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5290] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5291 attached , parent_tid=[5291], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5291 [pid 5290] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5290] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5291] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5291] memfd_create("syzkaller", 0) = 3 [pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5291] munmap(0x7fce62e23000, 524288) = 0 [pid 5291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5291] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5291] close(3) = 0 [pid 5291] mkdir("./bus", 0777) = 0 [pid 5291] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5291] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5291] chdir("./bus") = 0 [pid 5291] ioctl(4, LOOP_CLR_FD) = 0 [pid 5291] close(4) = 0 [pid 5291] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5290] <... futex resumed>) = 0 [pid 5291] unlink("./file2" [pid 5290] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5290] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5291] <... unlink resumed>) = 0 [pid 5291] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5290] <... futex resumed>) = 0 [pid 5291] mkdir(".", 0777 [pid 5290] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5290] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5290] <... futex resumed>) = 0 [pid 5290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5290] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5290] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5292], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5292 [pid 5290] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5290] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5291] <... mount resumed>) = 0 [pid 5291] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5291] chdir(".") = 0 [pid 5291] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5292 attached [pid 5292] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5292] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5292] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5290] <... futex resumed>) = 0 [pid 5292] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] exit_group(0 [pid 5291] <... futex resumed>) = ? [pid 5290] <... exit_group resumed>) = ? [pid 5291] +++ exited with 0 +++ [pid 5292] <... futex resumed>) = ? [pid 5292] +++ exited with 0 +++ [pid 5290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5290, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./74/binderfs") = 0 umount2("./74/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./74/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./74/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./74/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./74/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./74/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./74") = 0 mkdir("./75", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5293 ./strace-static-x86_64: Process 5293 attached [pid 5293] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5293] chdir("./75") = 0 [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5293] setpgid(0, 0) = 0 [ 60.235761][ T5291] loop0: detected capacity change from 0 to 1024 [ 60.272331][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5293] write(3, "1000", 4) = 4 [pid 5293] close(3) = 0 [pid 5293] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5293] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5293] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5293] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5294], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5294 ./strace-static-x86_64: Process 5294 attached [pid 5293] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5294] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5294] memfd_create("syzkaller", 0) = 3 [pid 5294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5294] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5294] munmap(0x7fce62e23000, 524288) = 0 [pid 5294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5294] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5294] close(3) = 0 [pid 5294] mkdir("./bus", 0777) = 0 [pid 5294] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5294] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5294] chdir("./bus") = 0 [pid 5294] ioctl(4, LOOP_CLR_FD) = 0 [pid 5294] close(4) = 0 [pid 5294] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... futex resumed>) = 1 [pid 5294] unlink("./file2") = 0 [pid 5294] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5293] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5293] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5295], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5295 [pid 5293] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... futex resumed>) = 1 [pid 5294] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5294] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5295 attached ) = 0 [pid 5294] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5294] chdir(".") = 0 [pid 5295] set_robust_list(0x7fce62ea29e0, 24 [pid 5294] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] <... set_robust_list resumed>) = 0 [pid 5294] <... futex resumed>) = 0 [pid 5295] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5294] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5295] <... openat resumed>) = -1 EEXIST (File exists) [pid 5295] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5293] exit_group(0) = ? [pid 5294] <... futex resumed>) = ? [pid 5294] +++ exited with 0 +++ [pid 5295] <... futex resumed>) = ? [pid 5295] +++ exited with 0 +++ [pid 5293] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./75/binderfs") = 0 umount2("./75/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./75/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./75/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./75/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./75/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./75/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./75") = 0 mkdir("./76", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5296 ./strace-static-x86_64: Process 5296 attached [pid 5296] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5296] chdir("./76") = 0 [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5296] setpgid(0, 0) = 0 [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5296] write(3, "1000", 4) = 4 [pid 5296] close(3) = 0 [pid 5296] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5296] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 60.343703][ T5294] loop0: detected capacity change from 0 to 1024 [ 60.364348][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5296] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5296] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5297 attached , parent_tid=[5297], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5297 [pid 5297] set_robust_list(0x7fce6b2439e0, 24 [pid 5296] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... set_robust_list resumed>) = 0 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5297] memfd_create("syzkaller", 0) = 3 [pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5297] munmap(0x7fce62e23000, 524288) = 0 [pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5297] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5297] close(3) = 0 [pid 5297] mkdir("./bus", 0777) = 0 [pid 5297] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5297] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5297] chdir("./bus") = 0 [pid 5297] ioctl(4, LOOP_CLR_FD) = 0 [pid 5297] close(4) = 0 [pid 5297] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] <... futex resumed>) = 1 [pid 5297] unlink("./file2") = 0 [pid 5297] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5296] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5296] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5298], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5298 [pid 5296] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] <... futex resumed>) = 1 [pid 5297] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5297] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5298 attached [pid 5298] set_robust_list(0x7fce62ea29e0, 24 [pid 5297] <... mount resumed>) = 0 [pid 5297] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5297] chdir(".") = 0 [pid 5297] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5297] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] <... set_robust_list resumed>) = 0 [pid 5298] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5298] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5296] exit_group(0) = ? [pid 5297] <... futex resumed>) = ? [pid 5297] +++ exited with 0 +++ [pid 5298] <... futex resumed>) = ? [pid 5298] +++ exited with 0 +++ [pid 5296] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./76/binderfs") = 0 umount2("./76/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./76/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./76/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./76/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./76/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./76/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./76") = 0 mkdir("./77", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5299 ./strace-static-x86_64: Process 5299 attached [pid 5299] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5299] chdir("./77") = 0 [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5299] setpgid(0, 0) = 0 [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5299] write(3, "1000", 4) = 4 [pid 5299] close(3) = 0 [pid 5299] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5299] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5299] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5299] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5300], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5300 [pid 5299] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5299] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5300 attached [pid 5300] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5300] memfd_create("syzkaller", 0) = 3 [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5300] munmap(0x7fce62e23000, 524288) = 0 [pid 5300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 60.447256][ T5297] loop0: detected capacity change from 0 to 1024 [ 60.470417][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5300] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5300] close(3) = 0 [pid 5300] mkdir("./bus", 0777) = 0 [pid 5300] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5300] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5300] chdir("./bus") = 0 [pid 5300] ioctl(4, LOOP_CLR_FD) = 0 [pid 5300] close(4) = 0 [pid 5300] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5299] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5299] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5300] unlink("./file2") = 0 [pid 5300] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5299] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5299] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5299] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5299] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5301 attached [pid 5300] mkdir(".", 0777 [pid 5299] <... clone resumed>, parent_tid=[5301], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5301 [pid 5300] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5299] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5299] <... futex resumed>) = 0 [pid 5301] set_robust_list(0x7fce62ea29e0, 24 [pid 5299] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] <... set_robust_list resumed>) = 0 [pid 5300] <... mount resumed>) = 0 [pid 5300] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5301] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5300] chdir(".") = 0 [pid 5300] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5300] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5301] <... openat resumed>) = -1 EEXIST (File exists) [pid 5301] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5301] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5299] exit_group(0 [pid 5301] <... futex resumed>) = ? [pid 5300] <... futex resumed>) = ? [pid 5299] <... exit_group resumed>) = ? [pid 5301] +++ exited with 0 +++ [pid 5300] +++ exited with 0 +++ [pid 5299] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./77/binderfs") = 0 umount2("./77/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./77/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./77/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./77/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./77/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./77/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./77") = 0 mkdir("./78", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 60.524846][ T5300] loop0: detected capacity change from 0 to 1024 [ 60.562918][ T2393] hfsplus: b-tree write err: -5, ino 4 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5302 ./strace-static-x86_64: Process 5302 attached [pid 5302] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5302] chdir("./78") = 0 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5302] setpgid(0, 0) = 0 [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5302] write(3, "1000", 4) = 4 [pid 5302] close(3) = 0 [pid 5302] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5302] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5302] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5302] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5303 attached [pid 5303] set_robust_list(0x7fce6b2439e0, 24 [pid 5302] <... clone resumed>, parent_tid=[5303], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5303 [pid 5302] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5303] <... set_robust_list resumed>) = 0 [pid 5303] memfd_create("syzkaller", 0) = 3 [pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5303] munmap(0x7fce62e23000, 524288) = 0 [pid 5303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5303] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5303] close(3) = 0 [pid 5303] mkdir("./bus", 0777) = 0 [pid 5303] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5303] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5303] chdir("./bus") = 0 [pid 5303] ioctl(4, LOOP_CLR_FD) = 0 [pid 5303] close(4) = 0 [pid 5303] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5302] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] unlink("./file2") = 0 [pid 5303] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5303] mkdir(".", 0777 [pid 5302] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5303] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5302] <... futex resumed>) = 0 [pid 5303] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5302] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5302] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5302] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5304], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5304 [pid 5302] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] <... mount resumed>) = 0 [pid 5303] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5303] chdir(".") = 0 [pid 5303] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5303] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5304 attached [pid 5304] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5304] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5304] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5302] exit_group(0 [pid 5303] <... futex resumed>) = ? [pid 5302] <... exit_group resumed>) = ? [pid 5303] +++ exited with 0 +++ [pid 5304] +++ exited with 0 +++ [pid 5302] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./78/binderfs") = 0 umount2("./78/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./78/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./78/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./78/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./78/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./78/bus") = 0 [ 60.621307][ T5303] loop0: detected capacity change from 0 to 1024 [ 60.639977][ T41] hfsplus: b-tree write err: -5, ino 4 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./78") = 0 mkdir("./79", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5305 ./strace-static-x86_64: Process 5305 attached [pid 5305] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5305] chdir("./79") = 0 [pid 5305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5305] setpgid(0, 0) = 0 [pid 5305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5305] write(3, "1000", 4) = 4 [pid 5305] close(3) = 0 [pid 5305] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5305] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5305] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5305] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5306 attached , parent_tid=[5306], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5306 [pid 5306] set_robust_list(0x7fce6b2439e0, 24 [pid 5305] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] <... set_robust_list resumed>) = 0 [pid 5306] memfd_create("syzkaller", 0 [pid 5305] <... futex resumed>) = 0 [pid 5306] <... memfd_create resumed>) = 3 [pid 5306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5305] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5306] munmap(0x7fce62e23000, 524288) = 0 [pid 5306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5306] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5306] close(3) = 0 [pid 5306] mkdir("./bus", 0777) = 0 [pid 5306] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5306] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5306] chdir("./bus") = 0 [pid 5306] ioctl(4, LOOP_CLR_FD) = 0 [pid 5306] close(4) = 0 [pid 5306] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... futex resumed>) = 0 [pid 5305] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5306] <... futex resumed>) = 1 [pid 5306] unlink("./file2") = 0 [pid 5306] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... futex resumed>) = 0 [pid 5305] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5305] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5305] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5307], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5307 [pid 5305] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5306] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5307 attached [pid 5306] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5306] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5307] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5307] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5307] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5307] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5305] <... futex resumed>) = 0 [pid 5306] <... mount resumed>) = 0 [pid 5306] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5306] chdir(".") = 0 [pid 5306] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] exit_group(0 [pid 5306] <... futex resumed>) = ? [pid 5307] <... futex resumed>) = ? [pid 5305] <... exit_group resumed>) = ? [pid 5307] +++ exited with 0 +++ [pid 5306] +++ exited with 0 +++ [pid 5305] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./79/binderfs") = 0 umount2("./79/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./79/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./79/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./79/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./79/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./79/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./79") = 0 mkdir("./80", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5308 ./strace-static-x86_64: Process 5308 attached [pid 5308] set_robust_list(0x555556e9d5e0, 24) = 0 [ 60.710547][ T5306] loop0: detected capacity change from 0 to 1024 [ 60.744716][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5308] chdir("./80") = 0 [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5308] setpgid(0, 0) = 0 [pid 5308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5308] write(3, "1000", 4) = 4 [pid 5308] close(3) = 0 [pid 5308] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5308] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5308] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5308] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5309 attached , parent_tid=[5309], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5309 [pid 5309] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5309] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5309] memfd_create("syzkaller", 0 [pid 5308] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5309] <... memfd_create resumed>) = 3 [pid 5309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5309] munmap(0x7fce62e23000, 524288) = 0 [pid 5309] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5309] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5309] close(3) = 0 [pid 5309] mkdir("./bus", 0777) = 0 [pid 5309] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5309] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5309] chdir("./bus") = 0 [pid 5309] ioctl(4, LOOP_CLR_FD) = 0 [pid 5309] close(4) = 0 [pid 5309] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... futex resumed>) = 0 [pid 5308] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5309] <... futex resumed>) = 1 [pid 5309] unlink("./file2") = 0 [pid 5309] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... futex resumed>) = 0 [pid 5308] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5308] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5308] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5310], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5310 [pid 5308] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5309] <... futex resumed>) = 1 [pid 5309] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5309] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5310 attached [pid 5310] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5310] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5310] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... futex resumed>) = 0 [pid 5310] <... futex resumed>) = 1 [pid 5310] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5309] <... mount resumed>) = 0 [pid 5309] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5309] chdir(".") = 0 [pid 5309] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5309] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] exit_group(0 [pid 5309] <... futex resumed>) = ? [pid 5308] <... exit_group resumed>) = ? [pid 5309] +++ exited with 0 +++ [pid 5310] <... futex resumed>) = ? [pid 5310] +++ exited with 0 +++ [pid 5308] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./80/binderfs") = 0 umount2("./80/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./80/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./80/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./80/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./80/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./80/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./80") = 0 mkdir("./81", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5311 ./strace-static-x86_64: Process 5311 attached [pid 5311] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5311] chdir("./81") = 0 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5311] setpgid(0, 0) = 0 [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5311] write(3, "1000", 4) = 4 [pid 5311] close(3) = 0 [ 60.814500][ T5309] loop0: detected capacity change from 0 to 1024 [ 60.846051][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5311] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5311] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5311] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5311] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5312], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5312 [pid 5311] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5311] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5312 attached [pid 5312] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5312] memfd_create("syzkaller", 0) = 3 [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5312] munmap(0x7fce62e23000, 524288) = 0 [pid 5312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5312] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5312] close(3) = 0 [pid 5312] mkdir("./bus", 0777) = 0 [pid 5312] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5312] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5312] chdir("./bus") = 0 [pid 5312] ioctl(4, LOOP_CLR_FD) = 0 [pid 5312] close(4) = 0 [pid 5312] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5312] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] <... futex resumed>) = 0 [pid 5311] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] <... futex resumed>) = 0 [pid 5311] <... futex resumed>) = 1 [pid 5311] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5312] unlink("./file2") = 0 [pid 5312] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5311] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] mkdir(".", 0777 [pid 5311] <... futex resumed>) = 0 [pid 5312] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5312] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5311] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5311] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5311] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5312] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5313 attached [pid 5312] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5313] set_robust_list(0x7fce62ea29e0, 24 [pid 5312] <... openat resumed>) = 4 [pid 5311] <... clone resumed>, parent_tid=[5313], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5313 [pid 5312] chdir("." [pid 5311] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5312] <... chdir resumed>) = 0 [pid 5311] <... futex resumed>) = 0 [pid 5313] <... set_robust_list resumed>) = 0 [pid 5312] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5312] <... futex resumed>) = 0 [pid 5313] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5312] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5313] <... openat resumed>) = -1 EEXIST (File exists) [pid 5313] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] <... futex resumed>) = 0 [pid 5313] <... futex resumed>) = 1 [pid 5311] exit_group(0 [pid 5312] <... futex resumed>) = ? [pid 5311] <... exit_group resumed>) = ? [pid 5313] +++ exited with 0 +++ [pid 5312] +++ exited with 0 +++ [pid 5311] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./81/binderfs") = 0 umount2("./81/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./81/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./81/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./81/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./81/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 [ 60.909967][ T5312] loop0: detected capacity change from 0 to 1024 [ 60.947565][ T41] hfsplus: b-tree write err: -5, ino 4 close(4) = 0 rmdir("./81/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./81") = 0 mkdir("./82", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5314 ./strace-static-x86_64: Process 5314 attached [pid 5314] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5314] chdir("./82") = 0 [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5314] setpgid(0, 0) = 0 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5314] write(3, "1000", 4) = 4 [pid 5314] close(3) = 0 [pid 5314] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5314] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5314] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5314] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5315], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5315 [pid 5314] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5315 attached [pid 5315] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5315] memfd_create("syzkaller", 0) = 3 [pid 5315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5315] munmap(0x7fce62e23000, 524288) = 0 [pid 5315] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5315] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5315] close(3) = 0 [pid 5315] mkdir("./bus", 0777) = 0 [pid 5315] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5315] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5315] chdir("./bus") = 0 [pid 5315] ioctl(4, LOOP_CLR_FD) = 0 [pid 5315] close(4) = 0 [pid 5315] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5314] <... futex resumed>) = 0 [pid 5315] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5314] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5314] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5315] <... futex resumed>) = 0 [pid 5315] unlink("./file2") = 0 [pid 5315] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] <... futex resumed>) = 0 [pid 5314] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5314] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5314] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5316], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5316 ./strace-static-x86_64: Process 5316 attached [pid 5314] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5315] <... futex resumed>) = 1 [pid 5315] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5315] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5316] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5316] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5316] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5314] <... futex resumed>) = 0 [pid 5316] <... futex resumed>) = 1 [pid 5316] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5315] <... mount resumed>) = 0 [pid 5315] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5315] chdir(".") = 0 [pid 5315] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5314] exit_group(0) = ? [pid 5316] <... futex resumed>) = ? [pid 5316] +++ exited with 0 +++ [pid 5315] +++ exited with 0 +++ [pid 5314] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./82/binderfs") = 0 umount2("./82/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./82/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./82/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./82/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./82/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./82/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./82") = 0 mkdir("./83", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 61.026417][ T5315] loop0: detected capacity change from 0 to 1024 [ 61.064389][ T2393] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5317 ./strace-static-x86_64: Process 5317 attached [pid 5317] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5317] chdir("./83") = 0 [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5317] setpgid(0, 0) = 0 [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5317] write(3, "1000", 4) = 4 [pid 5317] close(3) = 0 [pid 5317] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5317] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5317] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5317] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5318 attached , parent_tid=[5318], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5318 [pid 5318] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5318] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5318] <... futex resumed>) = 0 [pid 5317] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5318] memfd_create("syzkaller", 0) = 3 [pid 5318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5318] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5318] munmap(0x7fce62e23000, 524288) = 0 [pid 5318] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5318] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5318] close(3) = 0 [pid 5318] mkdir("./bus", 0777) = 0 [pid 5318] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5318] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5318] chdir("./bus") = 0 [pid 5318] ioctl(4, LOOP_CLR_FD) = 0 [pid 5318] close(4) = 0 [pid 5318] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... futex resumed>) = 0 [pid 5317] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5317] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5318] <... futex resumed>) = 1 [pid 5318] unlink("./file2") = 0 [pid 5318] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... futex resumed>) = 0 [pid 5317] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5317] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5317] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5317] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5319], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5319 [pid 5317] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5317] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5318] <... futex resumed>) = 1 [pid 5318] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5318] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5319 attached [pid 5319] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5319] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5319] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... futex resumed>) = 0 [pid 5319] <... futex resumed>) = 1 [pid 5319] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] <... mount resumed>) = 0 [pid 5318] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5318] chdir(".") = 0 [pid 5318] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5318] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] exit_group(0) = ? [pid 5318] <... futex resumed>) = ? [pid 5318] +++ exited with 0 +++ [pid 5319] <... futex resumed>) = ? [pid 5319] +++ exited with 0 +++ [pid 5317] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./83/binderfs") = 0 umount2("./83/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./83/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./83/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./83/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./83/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./83/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./83") = 0 mkdir("./84", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5320 ./strace-static-x86_64: Process 5320 attached [pid 5320] set_robust_list(0x555556e9d5e0, 24) = 0 [ 61.132940][ T5318] loop0: detected capacity change from 0 to 1024 [ 61.163503][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5320] chdir("./84") = 0 [pid 5320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5320] setpgid(0, 0) = 0 [pid 5320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5320] write(3, "1000", 4) = 4 [pid 5320] close(3) = 0 [pid 5320] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5320] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5320] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5320] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5321 attached , parent_tid=[5321], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5321 [pid 5321] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5321] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5320] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5320] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5321] memfd_create("syzkaller", 0) = 3 [pid 5321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5321] munmap(0x7fce62e23000, 524288) = 0 [pid 5321] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5321] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5321] close(3) = 0 [pid 5321] mkdir("./bus", 0777) = 0 [pid 5321] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5321] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5321] chdir("./bus") = 0 [pid 5321] ioctl(4, LOOP_CLR_FD) = 0 [pid 5321] close(4) = 0 [pid 5321] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5320] <... futex resumed>) = 0 [pid 5320] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5320] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5321] unlink("./file2") = 0 [pid 5321] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5320] <... futex resumed>) = 0 [pid 5320] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5320] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5320] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5320] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5322 attached , parent_tid=[5322], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5322 [pid 5320] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5320] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5321] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5321] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5322] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5322] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5322] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5320] <... futex resumed>) = 0 [pid 5322] <... futex resumed>) = 1 [pid 5322] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] <... mount resumed>) = 0 [pid 5321] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5321] chdir(".") = 0 [pid 5321] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5321] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5320] exit_group(0) = ? [pid 5321] <... futex resumed>) = ? [pid 5321] +++ exited with 0 +++ [pid 5322] <... futex resumed>) = ? [pid 5322] +++ exited with 0 +++ [pid 5320] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5320, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./84/binderfs") = 0 umount2("./84/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./84/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./84/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./84/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./84/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./84/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./84") = 0 mkdir("./85", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5323 ./strace-static-x86_64: Process 5323 attached [pid 5323] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5323] chdir("./85") = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5323] setpgid(0, 0) = 0 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5323] write(3, "1000", 4) = 4 [pid 5323] close(3) = 0 [pid 5323] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5323] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5323] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5323] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5324], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5324 [ 61.232824][ T5321] loop0: detected capacity change from 0 to 1024 [ 61.263238][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5323] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5324 attached [pid 5324] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5324] memfd_create("syzkaller", 0) = 3 [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5324] munmap(0x7fce62e23000, 524288) = 0 [pid 5324] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5324] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5324] close(3) = 0 [pid 5324] mkdir("./bus", 0777) = 0 [pid 5324] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5324] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5324] chdir("./bus") = 0 [pid 5324] ioctl(4, LOOP_CLR_FD) = 0 [pid 5324] close(4) = 0 [pid 5324] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = 0 [pid 5323] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5324] <... futex resumed>) = 1 [pid 5324] unlink("./file2") = 0 [pid 5324] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = 0 [pid 5323] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5323] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5323] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5325], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5325 [pid 5323] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5324] <... futex resumed>) = 1 [pid 5324] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5324] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5325 attached [pid 5325] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5325] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5325] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5323] <... futex resumed>) = 0 [pid 5325] <... futex resumed>) = 1 [pid 5325] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5324] <... mount resumed>) = 0 [pid 5324] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5324] chdir(".") = 0 [pid 5324] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5324] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5323] exit_group(0 [pid 5324] <... futex resumed>) = ? [pid 5323] <... exit_group resumed>) = ? [pid 5324] +++ exited with 0 +++ [pid 5325] <... futex resumed>) = ? [pid 5325] +++ exited with 0 +++ [pid 5323] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./85/binderfs") = 0 umount2("./85/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./85/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./85/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./85/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./85/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./85/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./85") = 0 mkdir("./86", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5326 ./strace-static-x86_64: Process 5326 attached [pid 5326] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5326] chdir("./86") = 0 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5326] setpgid(0, 0) = 0 [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5326] write(3, "1000", 4) = 4 [pid 5326] close(3) = 0 [pid 5326] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5326] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 61.324635][ T5324] loop0: detected capacity change from 0 to 1024 [ 61.351875][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5326] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5326] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5327 attached [pid 5327] set_robust_list(0x7fce6b2439e0, 24 [pid 5326] <... clone resumed>, parent_tid=[5327], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5327 [pid 5327] <... set_robust_list resumed>) = 0 [pid 5326] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5326] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5327] memfd_create("syzkaller", 0) = 3 [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5327] munmap(0x7fce62e23000, 524288) = 0 [pid 5327] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5327] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5327] close(3) = 0 [pid 5327] mkdir("./bus", 0777) = 0 [pid 5327] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5327] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5327] chdir("./bus") = 0 [pid 5327] ioctl(4, LOOP_CLR_FD) = 0 [pid 5327] close(4) = 0 [pid 5327] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5327] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] <... futex resumed>) = 0 [pid 5326] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5326] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5327] <... futex resumed>) = 0 [pid 5327] unlink("./file2") = 0 [pid 5327] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5326] <... futex resumed>) = 0 [pid 5326] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5326] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5327] mkdir(".", 0777 [pid 5326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5327] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5326] <... mmap resumed>) = 0x7fce62e82000 [pid 5327] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5326] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5326] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5328 attached [pid 5328] set_robust_list(0x7fce62ea29e0, 24 [pid 5326] <... clone resumed>, parent_tid=[5328], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5328 [pid 5328] <... set_robust_list resumed>) = 0 [pid 5326] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5328] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5326] <... futex resumed>) = 0 [pid 5326] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5328] <... openat resumed>) = -1 EEXIST (File exists) [pid 5328] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5328] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5327] <... mount resumed>) = 0 [pid 5327] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5327] chdir(".") = 0 [pid 5327] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5327] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] exit_group(0 [pid 5328] <... futex resumed>) = ? [pid 5327] <... futex resumed>) = ? [pid 5326] <... exit_group resumed>) = ? [pid 5327] +++ exited with 0 +++ [pid 5328] +++ exited with 0 +++ [pid 5326] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./86/binderfs") = 0 umount2("./86/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./86/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./86/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./86/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./86/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./86/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./86") = 0 mkdir("./87", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 61.418324][ T5327] loop0: detected capacity change from 0 to 1024 [ 61.450743][ T11] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5329 ./strace-static-x86_64: Process 5329 attached [pid 5329] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5329] chdir("./87") = 0 [pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5329] setpgid(0, 0) = 0 [pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5329] write(3, "1000", 4) = 4 [pid 5329] close(3) = 0 [pid 5329] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5329] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5329] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5329] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5329] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5330 attached [pid 5330] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5330] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5329] <... clone resumed>, parent_tid=[5330], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5330 [pid 5329] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5329] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5330] <... futex resumed>) = 0 [pid 5330] memfd_create("syzkaller", 0) = 3 [pid 5330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5330] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5330] munmap(0x7fce62e23000, 524288) = 0 [pid 5330] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5330] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5330] close(3) = 0 [pid 5330] mkdir("./bus", 0777) = 0 [pid 5330] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5330] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5330] chdir("./bus") = 0 [pid 5330] ioctl(4, LOOP_CLR_FD) = 0 [pid 5330] close(4) = 0 [pid 5330] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5330] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5329] <... futex resumed>) = 0 [pid 5329] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... futex resumed>) = 0 [pid 5329] <... futex resumed>) = 1 [pid 5330] unlink("./file2" [pid 5329] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5330] <... unlink resumed>) = 0 [pid 5330] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5329] <... futex resumed>) = 0 [pid 5329] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5329] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5329] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5329] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5329] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5331 attached [pid 5331] set_robust_list(0x7fce62ea29e0, 24 [pid 5329] <... clone resumed>, parent_tid=[5331], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5331 [pid 5331] <... set_robust_list resumed>) = 0 [pid 5329] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5329] <... futex resumed>) = 0 [pid 5329] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5331] <... openat resumed>) = -1 EEXIST (File exists) [pid 5331] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5330] <... futex resumed>) = 1 [pid 5329] <... futex resumed>) = 0 [pid 5331] <... futex resumed>) = 1 [pid 5330] mkdir(".", 0777 [pid 5331] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5330] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5330] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5330] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5330] chdir(".") = 0 [pid 5330] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5330] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5329] exit_group(0 [pid 5331] <... futex resumed>) = ? [pid 5329] <... exit_group resumed>) = ? [pid 5331] +++ exited with 0 +++ [pid 5330] <... futex resumed>) = ? [pid 5330] +++ exited with 0 +++ [pid 5329] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5329, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./87/binderfs") = 0 umount2("./87/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./87/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./87/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./87/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./87/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./87/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./87") = 0 mkdir("./88", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 61.526119][ T5330] loop0: detected capacity change from 0 to 1024 [ 61.561034][ T41] hfsplus: b-tree write err: -5, ino 4 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5332 ./strace-static-x86_64: Process 5332 attached [pid 5332] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5332] chdir("./88") = 0 [pid 5332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5332] setpgid(0, 0) = 0 [pid 5332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5332] write(3, "1000", 4) = 4 [pid 5332] close(3) = 0 [pid 5332] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5332] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5332] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5332] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5333 attached , parent_tid=[5333], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5333 [pid 5332] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5332] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5333] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5333] memfd_create("syzkaller", 0) = 3 [pid 5333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5333] munmap(0x7fce62e23000, 524288) = 0 [pid 5333] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5333] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5333] close(3) = 0 [pid 5333] mkdir("./bus", 0777) = 0 [pid 5333] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5333] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5333] chdir("./bus") = 0 [pid 5333] ioctl(4, LOOP_CLR_FD) = 0 [pid 5333] close(4) = 0 [pid 5333] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5332] <... futex resumed>) = 0 [pid 5333] unlink("./file2" [pid 5332] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5332] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5333] <... unlink resumed>) = 0 [pid 5333] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5332] <... futex resumed>) = 0 [pid 5332] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5332] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5332] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5332] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5334], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5334 [pid 5332] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5332] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5334 attached [pid 5333] mkdir(".", 0777 [pid 5334] set_robust_list(0x7fce62ea29e0, 24 [pid 5333] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5334] <... set_robust_list resumed>) = 0 [pid 5333] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5334] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5334] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5334] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5332] <... futex resumed>) = 0 [pid 5333] <... mount resumed>) = 0 [pid 5333] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5333] chdir(".") = 0 [pid 5333] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5333] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5332] exit_group(0) = ? [pid 5334] <... futex resumed>) = ? [pid 5333] <... futex resumed>) = ? [pid 5334] +++ exited with 0 +++ [pid 5333] +++ exited with 0 +++ [pid 5332] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5332, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./88/binderfs") = 0 umount2("./88/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./88/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./88/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./88/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./88/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./88/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./88") = 0 mkdir("./89", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5335 ./strace-static-x86_64: Process 5335 attached [pid 5335] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5335] chdir("./89") = 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5335] setpgid(0, 0) = 0 [ 61.635805][ T5333] loop0: detected capacity change from 0 to 1024 [ 61.671550][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5335] write(3, "1000", 4) = 4 [pid 5335] close(3) = 0 [pid 5335] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5335] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5335] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5335] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5336 attached , parent_tid=[5336], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5336 [pid 5336] set_robust_list(0x7fce6b2439e0, 24 [pid 5335] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5335] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5336] <... set_robust_list resumed>) = 0 [pid 5336] memfd_create("syzkaller", 0) = 3 [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5336] munmap(0x7fce62e23000, 524288) = 0 [pid 5336] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5336] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5336] close(3) = 0 [pid 5336] mkdir("./bus", 0777) = 0 [pid 5336] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5336] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5336] chdir("./bus") = 0 [pid 5336] ioctl(4, LOOP_CLR_FD) = 0 [pid 5336] close(4) = 0 [pid 5336] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5335] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5335] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] unlink("./file2") = 0 [pid 5336] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5336] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5335] <... futex resumed>) = 0 [pid 5336] mkdir(".", 0777 [pid 5335] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5335] <... futex resumed>) = 0 [pid 5336] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5335] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5335] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5337 attached [pid 5336] <... mount resumed>) = 0 [pid 5335] <... clone resumed>, parent_tid=[5337], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5337 [pid 5337] set_robust_list(0x7fce62ea29e0, 24 [pid 5335] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5335] <... futex resumed>) = 0 [pid 5336] chdir(".") = 0 [pid 5336] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5335] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5337] <... set_robust_list resumed>) = 0 [pid 5336] <... futex resumed>) = 0 [pid 5336] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5337] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5337] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5337] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] exit_group(0 [pid 5337] <... futex resumed>) = ? [pid 5336] <... futex resumed>) = ? [pid 5335] <... exit_group resumed>) = ? [pid 5337] +++ exited with 0 +++ [pid 5336] +++ exited with 0 +++ [pid 5335] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./89/binderfs") = 0 umount2("./89/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./89/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./89/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./89/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./89/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./89/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./89") = 0 mkdir("./90", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 61.749282][ T5336] loop0: detected capacity change from 0 to 1024 [ 61.782576][ T41] hfsplus: b-tree write err: -5, ino 4 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5338 ./strace-static-x86_64: Process 5338 attached [pid 5338] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5338] chdir("./90") = 0 [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5338] setpgid(0, 0) = 0 [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5338] write(3, "1000", 4) = 4 [pid 5338] close(3) = 0 [pid 5338] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5338] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5338] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5338] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5339], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5339 [pid 5338] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5338] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5339 attached [pid 5339] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5339] memfd_create("syzkaller", 0) = 3 [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5339] munmap(0x7fce62e23000, 524288) = 0 [pid 5339] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5339] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5339] close(3) = 0 [pid 5339] mkdir("./bus", 0777) = 0 [pid 5339] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5339] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5339] chdir("./bus") = 0 [pid 5339] ioctl(4, LOOP_CLR_FD) = 0 [pid 5339] close(4) = 0 [pid 5339] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5338] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5339] unlink("./file2" [pid 5338] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5339] <... unlink resumed>) = 0 [pid 5339] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5338] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5338] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5338] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5339] mkdir(".", 0777 [pid 5338] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5339] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5338] <... clone resumed>, parent_tid=[5340], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5340 [pid 5338] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5338] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5340 attached [pid 5339] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5340] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5340] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5340] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5340] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5339] <... mount resumed>) = 0 [pid 5339] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5339] chdir(".") = 0 [pid 5339] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5339] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] exit_group(0 [pid 5340] <... futex resumed>) = ? [pid 5339] <... futex resumed>) = ? [pid 5338] <... exit_group resumed>) = ? [pid 5339] +++ exited with 0 +++ [pid 5340] +++ exited with 0 +++ [pid 5338] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./90/binderfs") = 0 umount2("./90/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./90/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./90/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./90/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./90/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./90/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./90") = 0 mkdir("./91", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 61.855768][ T5339] loop0: detected capacity change from 0 to 1024 [ 61.886952][ T41] hfsplus: b-tree write err: -5, ino 4 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5341 ./strace-static-x86_64: Process 5341 attached [pid 5341] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5341] chdir("./91") = 0 [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5341] setpgid(0, 0) = 0 [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5341] write(3, "1000", 4) = 4 [pid 5341] close(3) = 0 [pid 5341] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5341] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5341] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5341] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5342], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5342 [pid 5341] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5341] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5342 attached [pid 5342] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5342] memfd_create("syzkaller", 0) = 3 [pid 5342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5342] munmap(0x7fce62e23000, 524288) = 0 [pid 5342] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5342] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5342] close(3) = 0 [pid 5342] mkdir("./bus", 0777) = 0 [pid 5342] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5342] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5342] chdir("./bus") = 0 [pid 5342] ioctl(4, LOOP_CLR_FD) = 0 [pid 5342] close(4) = 0 [pid 5342] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] <... futex resumed>) = 0 [pid 5341] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5341] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5342] <... futex resumed>) = 1 [pid 5342] unlink("./file2") = 0 [pid 5342] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] <... futex resumed>) = 0 [pid 5341] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5341] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5341] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5341] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5343], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5343 [pid 5341] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5341] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5342] <... futex resumed>) = 1 [pid 5342] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5342] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5343 attached [pid 5343] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5343] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5343] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5341] <... futex resumed>) = 0 [pid 5343] <... futex resumed>) = 1 [pid 5343] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5342] <... mount resumed>) = 0 [pid 5342] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5342] chdir(".") = 0 [pid 5342] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5342] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] exit_group(0 [pid 5342] <... futex resumed>) = ? [pid 5341] <... exit_group resumed>) = ? [pid 5342] +++ exited with 0 +++ [pid 5343] <... futex resumed>) = ? [pid 5343] +++ exited with 0 +++ [pid 5341] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./91/binderfs") = 0 umount2("./91/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./91/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./91/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./91/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./91/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./91/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./91") = 0 mkdir("./92", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5344 ./strace-static-x86_64: Process 5344 attached [pid 5344] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5344] chdir("./92") = 0 [pid 5344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5344] setpgid(0, 0) = 0 [pid 5344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5344] write(3, "1000", 4) = 4 [pid 5344] close(3) = 0 [pid 5344] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5344] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5344] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5344] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5345], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5345 [pid 5344] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5344] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5345 attached [pid 5345] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5345] memfd_create("syzkaller", 0) = 3 [pid 5345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 61.955206][ T5342] loop0: detected capacity change from 0 to 1024 [ 61.982661][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5345] munmap(0x7fce62e23000, 524288) = 0 [pid 5345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5345] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5345] close(3) = 0 [pid 5345] mkdir("./bus", 0777) = 0 [pid 5345] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5345] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5345] chdir("./bus") = 0 [pid 5345] ioctl(4, LOOP_CLR_FD) = 0 [pid 5345] close(4) = 0 [pid 5345] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5344] <... futex resumed>) = 0 [pid 5345] unlink("./file2" [pid 5344] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5344] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5345] <... unlink resumed>) = 0 [pid 5345] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5344] <... futex resumed>) = 0 [pid 5344] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5344] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5345] mkdir(".", 0777 [pid 5344] <... mmap resumed>) = 0x7fce62e82000 [pid 5344] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5345] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5344] <... mprotect resumed>) = 0 [pid 5344] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5345] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5346 attached [pid 5344] <... clone resumed>, parent_tid=[5346], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5346 [pid 5346] set_robust_list(0x7fce62ea29e0, 24 [pid 5344] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5345] <... mount resumed>) = 0 [pid 5344] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5345] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5345] chdir(".") = 0 [pid 5345] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5346] <... set_robust_list resumed>) = 0 [pid 5345] <... futex resumed>) = 0 [pid 5346] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5345] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5346] <... openat resumed>) = -1 EEXIST (File exists) [pid 5346] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5344] <... futex resumed>) = 0 [pid 5346] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5344] exit_group(0 [pid 5346] <... futex resumed>) = ? [pid 5345] <... futex resumed>) = ? [pid 5344] <... exit_group resumed>) = ? [pid 5345] +++ exited with 0 +++ [pid 5346] +++ exited with 0 +++ [pid 5344] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5344, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./92/binderfs") = 0 umount2("./92/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./92/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./92/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./92/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./92/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./92/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./92") = 0 mkdir("./93", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5347 attached [pid 5347] set_robust_list(0x555556e9d5e0, 24 [pid 5066] <... clone resumed>, child_tidptr=0x555556e9d5d0) = 5347 [pid 5347] <... set_robust_list resumed>) = 0 [pid 5347] chdir("./93") = 0 [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5347] setpgid(0, 0) = 0 [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5347] write(3, "1000", 4) = 4 [pid 5347] close(3) = 0 [pid 5347] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5347] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5347] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5347] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5348 attached , parent_tid=[5348], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5348 [pid 5348] set_robust_list(0x7fce6b2439e0, 24 [pid 5347] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5347] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5348] <... set_robust_list resumed>) = 0 [pid 5348] memfd_create("syzkaller", 0) = 3 [pid 5348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 62.042402][ T5345] loop0: detected capacity change from 0 to 1024 [ 62.071659][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5348] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5348] munmap(0x7fce62e23000, 524288) = 0 [pid 5348] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5348] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5348] close(3) = 0 [pid 5348] mkdir("./bus", 0777) = 0 [pid 5348] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5348] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5348] chdir("./bus") = 0 [pid 5348] ioctl(4, LOOP_CLR_FD) = 0 [pid 5348] close(4) = 0 [pid 5348] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5348] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5347] <... futex resumed>) = 0 [pid 5347] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5347] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5348] <... futex resumed>) = 0 [pid 5348] unlink("./file2") = 0 [pid 5348] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5347] <... futex resumed>) = 0 [pid 5348] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5347] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5347] <... futex resumed>) = 0 [pid 5347] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5348] mkdir(".", 0777 [pid 5347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5348] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5348] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5347] <... mmap resumed>) = 0x7fce62e82000 [pid 5347] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5347] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5349 attached [pid 5349] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5349] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5347] <... clone resumed>, parent_tid=[5349], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5349 [pid 5347] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5347] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5349] <... futex resumed>) = 0 [pid 5349] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5349] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5347] <... futex resumed>) = 0 [pid 5349] <... futex resumed>) = 1 [pid 5349] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5348] <... mount resumed>) = 0 [pid 5348] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5348] chdir(".") = 0 [pid 5348] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5348] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5347] exit_group(0 [pid 5348] <... futex resumed>) = ? [pid 5347] <... exit_group resumed>) = ? [pid 5348] +++ exited with 0 +++ [pid 5349] <... futex resumed>) = ? [pid 5349] +++ exited with 0 +++ [pid 5347] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./93/binderfs") = 0 umount2("./93/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./93/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./93/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./93/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./93/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./93/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./93") = 0 mkdir("./94", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5350 ./strace-static-x86_64: Process 5350 attached [pid 5350] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5350] chdir("./94") = 0 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5350] setpgid(0, 0) = 0 [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5350] write(3, "1000", 4) = 4 [pid 5350] close(3) = 0 [pid 5350] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5350] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5350] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5350] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5351 attached , parent_tid=[5351], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5351 [pid 5351] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5351] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5350] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5351] <... futex resumed>) = 0 [pid 5351] memfd_create("syzkaller", 0 [pid 5350] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5351] <... memfd_create resumed>) = 3 [pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 62.127267][ T5348] loop0: detected capacity change from 0 to 1024 [ 62.160391][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5351] munmap(0x7fce62e23000, 524288) = 0 [pid 5351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5351] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5351] close(3) = 0 [pid 5351] mkdir("./bus", 0777) = 0 [pid 5351] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5351] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5351] chdir("./bus") = 0 [pid 5351] ioctl(4, LOOP_CLR_FD) = 0 [pid 5351] close(4) = 0 [pid 5351] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5350] <... futex resumed>) = 0 [pid 5350] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] <... futex resumed>) = 1 [pid 5351] unlink("./file2") = 0 [pid 5351] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5350] <... futex resumed>) = 0 [pid 5350] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5350] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5350] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5352 attached , parent_tid=[5352], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5352 [pid 5350] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5350] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5351] <... futex resumed>) = 1 [pid 5351] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5352] set_robust_list(0x7fce62ea29e0, 24 [pid 5351] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5352] <... set_robust_list resumed>) = 0 [pid 5352] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5352] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5350] <... futex resumed>) = 0 [pid 5352] <... futex resumed>) = 1 [pid 5352] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5351] <... mount resumed>) = 0 [pid 5351] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5351] chdir(".") = 0 [pid 5351] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5351] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5350] exit_group(0) = ? [pid 5352] <... futex resumed>) = ? [pid 5351] <... futex resumed>) = ? [pid 5351] +++ exited with 0 +++ [pid 5352] +++ exited with 0 +++ [pid 5350] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./94/binderfs") = 0 umount2("./94/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./94/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./94/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./94/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./94/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 [ 62.213355][ T5351] loop0: detected capacity change from 0 to 1024 [ 62.251507][ T41] hfsplus: b-tree write err: -5, ino 4 rmdir("./94/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./94") = 0 mkdir("./95", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5353 ./strace-static-x86_64: Process 5353 attached [pid 5353] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5353] chdir("./95") = 0 [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5353] setpgid(0, 0) = 0 [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5353] write(3, "1000", 4) = 4 [pid 5353] close(3) = 0 [pid 5353] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5353] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5353] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5353] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5354], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5354 [pid 5353] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5354 attached [pid 5354] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5354] memfd_create("syzkaller", 0) = 3 [pid 5354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5354] munmap(0x7fce62e23000, 524288) = 0 [pid 5354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5354] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5354] close(3) = 0 [pid 5354] mkdir("./bus", 0777) = 0 [pid 5354] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5354] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5354] chdir("./bus") = 0 [pid 5354] ioctl(4, LOOP_CLR_FD) = 0 [pid 5354] close(4) = 0 [pid 5354] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] <... futex resumed>) = 0 [pid 5353] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5354] <... futex resumed>) = 1 [pid 5353] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5354] unlink("./file2") = 0 [pid 5354] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] <... futex resumed>) = 0 [pid 5353] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5354] <... futex resumed>) = 1 [pid 5353] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5354] mkdir(".", 0777 [pid 5353] <... mprotect resumed>) = 0 [pid 5354] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5353] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5354] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5353] <... clone resumed>, parent_tid=[5355], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5355 [pid 5353] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5355 attached [pid 5355] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5355] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5355] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5353] <... futex resumed>) = 0 [pid 5355] <... futex resumed>) = 1 [pid 5355] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5354] <... mount resumed>) = 0 [pid 5354] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5354] chdir(".") = 0 [pid 5354] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5353] exit_group(0 [pid 5354] ???( [pid 5353] <... exit_group resumed>) = ? [pid 5354] <... ??? resumed>) = ? [pid 5354] +++ exited with 0 +++ [pid 5355] <... futex resumed>) = ? [pid 5355] +++ exited with 0 +++ [pid 5353] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./95/binderfs") = 0 umount2("./95/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./95/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./95/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./95/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./95/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./95/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./95") = 0 mkdir("./96", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5356 [ 62.309894][ T5354] loop0: detected capacity change from 0 to 1024 [ 62.346063][ T2393] hfsplus: b-tree write err: -5, ino 4 ./strace-static-x86_64: Process 5356 attached [pid 5356] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5356] chdir("./96") = 0 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5356] setpgid(0, 0) = 0 [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5356] write(3, "1000", 4) = 4 [pid 5356] close(3) = 0 [pid 5356] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5356] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5356] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5356] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5357 attached [pid 5357] set_robust_list(0x7fce6b2439e0, 24 [pid 5356] <... clone resumed>, parent_tid=[5357], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5357 [pid 5357] <... set_robust_list resumed>) = 0 [pid 5356] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5357] memfd_create("syzkaller", 0) = 3 [pid 5357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5357] munmap(0x7fce62e23000, 524288) = 0 [pid 5357] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5357] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5357] close(3) = 0 [pid 5357] mkdir("./bus", 0777) = 0 [pid 5357] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5357] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5357] chdir("./bus") = 0 [pid 5357] ioctl(4, LOOP_CLR_FD) = 0 [pid 5357] close(4) = 0 [pid 5357] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] <... futex resumed>) = 0 [pid 5356] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5357] <... futex resumed>) = 1 [pid 5357] unlink("./file2") = 0 [pid 5357] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5356] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5356] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5356] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5358 attached , parent_tid=[5358], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5358 [pid 5358] set_robust_list(0x7fce62ea29e0, 24 [pid 5356] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] <... set_robust_list resumed>) = 0 [pid 5356] <... futex resumed>) = 0 [pid 5358] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5356] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5358] <... openat resumed>) = -1 EEXIST (File exists) [pid 5358] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5358] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5357] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5357] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5357] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5357] chdir(".") = 0 [pid 5357] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] exit_group(0 [pid 5358] <... futex resumed>) = ? [pid 5356] <... exit_group resumed>) = ? [pid 5358] +++ exited with 0 +++ [pid 5357] +++ exited with 0 +++ [pid 5356] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./96/binderfs") = 0 umount2("./96/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./96/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./96/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./96/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./96/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./96/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./96") = 0 mkdir("./97", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5359 ./strace-static-x86_64: Process 5359 attached [ 62.416579][ T5357] loop0: detected capacity change from 0 to 1024 [ 62.451535][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5359] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5359] chdir("./97") = 0 [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5359] setpgid(0, 0) = 0 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5359] write(3, "1000", 4) = 4 [pid 5359] close(3) = 0 [pid 5359] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5359] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5359] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5359] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5360 attached , parent_tid=[5360], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5360 [pid 5360] set_robust_list(0x7fce6b2439e0, 24 [pid 5359] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5360] <... set_robust_list resumed>) = 0 [pid 5360] memfd_create("syzkaller", 0) = 3 [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5360] munmap(0x7fce62e23000, 524288) = 0 [pid 5360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5360] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5360] close(3) = 0 [pid 5360] mkdir("./bus", 0777) = 0 [pid 5360] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5360] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5360] chdir("./bus") = 0 [pid 5360] ioctl(4, LOOP_CLR_FD) = 0 [pid 5360] close(4) = 0 [pid 5360] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] <... futex resumed>) = 0 [pid 5359] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] <... futex resumed>) = 1 [pid 5360] unlink("./file2") = 0 [pid 5360] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] <... futex resumed>) = 0 [pid 5359] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5359] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5359] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5361 attached , parent_tid=[5361], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5361 [pid 5361] set_robust_list(0x7fce62ea29e0, 24 [pid 5359] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... set_robust_list resumed>) = 0 [pid 5359] <... futex resumed>) = 0 [pid 5361] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5359] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5361] <... openat resumed>) = -1 EEXIST (File exists) [pid 5361] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5361] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5360] <... futex resumed>) = 1 [pid 5360] mkdir(".", 0777) = -1 EEXIST (File exists) [ 62.522938][ T5360] loop0: detected capacity change from 0 to 1024 [pid 5360] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5360] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5360] chdir(".") = 0 [pid 5360] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5359] exit_group(0 [pid 5361] <... futex resumed>) = ? [pid 5359] <... exit_group resumed>) = ? [pid 5360] +++ exited with 0 +++ [pid 5361] +++ exited with 0 +++ [pid 5359] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./97/binderfs") = 0 umount2("./97/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./97/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./97/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./97/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./97/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./97/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./97") = 0 mkdir("./98", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5362 attached , child_tidptr=0x555556e9d5d0) = 5362 [pid 5362] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5362] chdir("./98") = 0 [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5362] setpgid(0, 0) = 0 [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5362] write(3, "1000", 4) = 4 [pid 5362] close(3) = 0 [pid 5362] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5362] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 62.568956][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5362] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5362] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5363], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5363 ./strace-static-x86_64: Process 5363 attached [pid 5362] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5362] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5363] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5363] memfd_create("syzkaller", 0) = 3 [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5363] munmap(0x7fce62e23000, 524288) = 0 [pid 5363] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5363] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5363] close(3) = 0 [pid 5363] mkdir("./bus", 0777) = 0 [pid 5363] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5363] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5363] chdir("./bus") = 0 [pid 5363] ioctl(4, LOOP_CLR_FD) = 0 [pid 5363] close(4) = 0 [pid 5363] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5363] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5362] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5362] <... futex resumed>) = 0 [pid 5363] unlink("./file2" [pid 5362] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5363] <... unlink resumed>) = 0 [pid 5363] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5363] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5362] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5362] <... futex resumed>) = 0 [pid 5363] mkdir(".", 0777 [pid 5362] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5363] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5362] <... futex resumed>) = 0 [pid 5363] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5362] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5362] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5364], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5364 [pid 5362] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5362] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5364 attached [pid 5364] set_robust_list(0x7fce62ea29e0, 24 [pid 5363] <... mount resumed>) = 0 [pid 5363] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5364] <... set_robust_list resumed>) = 0 [pid 5363] <... openat resumed>) = 4 [pid 5363] chdir(".") = 0 [pid 5363] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5363] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5364] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5364] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5362] <... futex resumed>) = 0 [pid 5362] exit_group(0 [pid 5363] <... futex resumed>) = ? [pid 5362] <... exit_group resumed>) = ? [pid 5363] +++ exited with 0 +++ [pid 5364] +++ exited with 0 +++ [pid 5362] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5362, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./98/binderfs") = 0 umount2("./98/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./98/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./98/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./98/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./98/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./98/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./98") = 0 mkdir("./99", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5365 ./strace-static-x86_64: Process 5365 attached [pid 5365] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5365] chdir("./99") = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5365] setpgid(0, 0) = 0 [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5365] write(3, "1000", 4) = 4 [pid 5365] close(3) = 0 [pid 5365] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5365] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5365] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5365] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5366], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5366 ./strace-static-x86_64: Process 5366 attached [pid 5365] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5366] set_robust_list(0x7fce6b2439e0, 24 [pid 5365] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5366] <... set_robust_list resumed>) = 0 [pid 5366] memfd_create("syzkaller", 0) = 3 [pid 5366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5366] munmap(0x7fce62e23000, 524288) = 0 [pid 5366] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 62.642586][ T5363] loop0: detected capacity change from 0 to 1024 [ 62.666006][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5366] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5366] close(3) = 0 [pid 5366] mkdir("./bus", 0777) = 0 [pid 5366] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5366] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5366] chdir("./bus") = 0 [pid 5366] ioctl(4, LOOP_CLR_FD) = 0 [pid 5366] close(4) = 0 [pid 5366] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5365] <... futex resumed>) = 0 [pid 5365] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5366] <... futex resumed>) = 1 [pid 5366] unlink("./file2") = 0 [pid 5366] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5365] <... futex resumed>) = 0 [pid 5365] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5365] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5365] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5367], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5367 ./strace-static-x86_64: Process 5367 attached [pid 5366] <... futex resumed>) = 1 [pid 5365] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5367] set_robust_list(0x7fce62ea29e0, 24 [pid 5365] <... futex resumed>) = 0 [pid 5366] mkdir(".", 0777 [pid 5365] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5367] <... set_robust_list resumed>) = 0 [pid 5367] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5366] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5367] <... openat resumed>) = -1 EEXIST (File exists) [pid 5366] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5367] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5367] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5366] <... mount resumed>) = 0 [pid 5366] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5366] chdir(".") = 0 [pid 5366] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5366] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] exit_group(0 [pid 5367] <... futex resumed>) = ? [pid 5366] <... futex resumed>) = ? [pid 5365] <... exit_group resumed>) = ? [pid 5367] +++ exited with 0 +++ [pid 5366] +++ exited with 0 +++ [pid 5365] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./99/binderfs") = 0 umount2("./99/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./99/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./99/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./99/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./99/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./99/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./99") = 0 mkdir("./100", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5368 attached , child_tidptr=0x555556e9d5d0) = 5368 [pid 5368] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5368] chdir("./100") = 0 [pid 5368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 62.714131][ T5366] loop0: detected capacity change from 0 to 1024 [ 62.748304][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5368] setpgid(0, 0) = 0 [pid 5368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5368] write(3, "1000", 4) = 4 [pid 5368] close(3) = 0 [pid 5368] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5368] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5368] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5368] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5369 attached [pid 5369] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5369] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5368] <... clone resumed>, parent_tid=[5369], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5369 [pid 5368] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5369] <... futex resumed>) = 0 [pid 5368] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5369] memfd_create("syzkaller", 0) = 3 [pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5369] munmap(0x7fce62e23000, 524288) = 0 [pid 5369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5369] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5369] close(3) = 0 [pid 5369] mkdir("./bus", 0777) = 0 [pid 5369] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5369] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5369] chdir("./bus") = 0 [pid 5369] ioctl(4, LOOP_CLR_FD) = 0 [pid 5369] close(4) = 0 [pid 5369] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] <... futex resumed>) = 0 [pid 5368] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] <... futex resumed>) = 1 [pid 5369] unlink("./file2") = 0 [pid 5369] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5368] <... futex resumed>) = 0 [pid 5368] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5368] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5368] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5370], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5370 [pid 5368] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5369] <... futex resumed>) = 1 [pid 5369] mkdir(".", 0777./strace-static-x86_64: Process 5370 attached [pid 5370] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5370] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5370] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5368] <... futex resumed>) = 0 [pid 5370] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5369] <... mkdir resumed>) = -1 EEXIST (File exists) [ 62.814284][ T5369] loop0: detected capacity change from 0 to 1024 [pid 5369] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5369] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5369] chdir(".") = 0 [pid 5369] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5368] exit_group(0) = ? [pid 5370] <... futex resumed>) = ? [pid 5370] +++ exited with 0 +++ [pid 5369] +++ exited with 0 +++ [pid 5368] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./100/binderfs") = 0 umount2("./100/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./100/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./100/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./100/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./100/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./100/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./100") = 0 mkdir("./101", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5371 ./strace-static-x86_64: Process 5371 attached [pid 5371] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5371] chdir("./101") = 0 [pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5371] setpgid(0, 0) = 0 [pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5371] write(3, "1000", 4) = 4 [pid 5371] close(3) = 0 [pid 5371] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5371] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5371] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5371] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5372], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5372 [pid 5371] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5372 attached [pid 5372] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5371] <... futex resumed>) = 0 [pid 5372] memfd_create("syzkaller", 0) = 3 [pid 5371] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5372] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5372] munmap(0x7fce62e23000, 524288) = 0 [pid 5372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 62.855085][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5372] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5372] close(3) = 0 [pid 5372] mkdir("./bus", 0777) = 0 [pid 5372] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5372] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5372] chdir("./bus") = 0 [pid 5372] ioctl(4, LOOP_CLR_FD) = 0 [pid 5372] close(4) = 0 [pid 5372] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] <... futex resumed>) = 0 [pid 5371] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... futex resumed>) = 1 [pid 5371] <... futex resumed>) = 0 [pid 5372] unlink("./file2" [pid 5371] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5372] <... unlink resumed>) = 0 [pid 5372] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5371] <... futex resumed>) = 0 [pid 5371] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5371] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5371] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5372] <... futex resumed>) = 1 [pid 5371] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5373 attached [pid 5372] mkdir(".", 0777 [pid 5373] set_robust_list(0x7fce62ea29e0, 24 [pid 5372] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5371] <... clone resumed>, parent_tid=[5373], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5373 [pid 5373] <... set_robust_list resumed>) = 0 [pid 5372] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5371] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5371] <... futex resumed>) = 0 [pid 5371] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5372] <... mount resumed>) = 0 [pid 5372] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5373] <... openat resumed>) = -1 EEXIST (File exists) [pid 5373] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5372] <... openat resumed>) = 4 [pid 5373] <... futex resumed>) = 1 [pid 5372] chdir("." [pid 5371] <... futex resumed>) = 0 [pid 5373] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5372] <... chdir resumed>) = 0 [pid 5372] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5372] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5371] exit_group(0 [pid 5373] <... futex resumed>) = ? [pid 5372] <... futex resumed>) = ? [pid 5371] <... exit_group resumed>) = ? [pid 5372] +++ exited with 0 +++ [pid 5373] +++ exited with 0 +++ [pid 5371] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5371, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./101/binderfs") = 0 umount2("./101/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./101/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./101/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./101/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./101/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./101/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./101") = 0 mkdir("./102", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 62.913379][ T5372] loop0: detected capacity change from 0 to 1024 [ 62.951458][ T41] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5374 attached [pid 5374] set_robust_list(0x555556e9d5e0, 24 [pid 5066] <... clone resumed>, child_tidptr=0x555556e9d5d0) = 5374 [pid 5374] <... set_robust_list resumed>) = 0 [pid 5374] chdir("./102") = 0 [pid 5374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5374] setpgid(0, 0) = 0 [pid 5374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5374] write(3, "1000", 4) = 4 [pid 5374] close(3) = 0 [pid 5374] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5374] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5374] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5374] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5375], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5375 ./strace-static-x86_64: Process 5375 attached [pid 5375] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5375] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5374] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5374] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5375] memfd_create("syzkaller", 0) = 3 [pid 5375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5375] munmap(0x7fce62e23000, 524288) = 0 [pid 5375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5375] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5375] close(3) = 0 [pid 5375] mkdir("./bus", 0777) = 0 [pid 5375] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5375] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5375] chdir("./bus") = 0 [pid 5375] ioctl(4, LOOP_CLR_FD) = 0 [pid 5375] close(4) = 0 [pid 5375] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] <... futex resumed>) = 0 [pid 5374] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5374] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5375] <... futex resumed>) = 1 [pid 5375] unlink("./file2") = 0 [pid 5375] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5374] <... futex resumed>) = 0 [pid 5375] <... futex resumed>) = 1 [pid 5374] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] mkdir(".", 0777 [pid 5374] <... futex resumed>) = 0 [pid 5375] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5374] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5375] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5374] <... futex resumed>) = 0 [pid 5374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5374] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5374] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5376 attached , parent_tid=[5376], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5376 [pid 5376] set_robust_list(0x7fce62ea29e0, 24 [pid 5374] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] <... set_robust_list resumed>) = 0 [pid 5374] <... futex resumed>) = 0 [pid 5375] <... mount resumed>) = 0 [pid 5374] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5376] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5375] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5375] chdir(".") = 0 [pid 5375] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5375] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5376] <... openat resumed>) = -1 EEXIST (File exists) [pid 5376] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5374] <... futex resumed>) = 0 [pid 5374] exit_group(0) = ? [pid 5375] <... futex resumed>) = ? [pid 5375] +++ exited with 0 +++ [pid 5376] +++ exited with 0 +++ [pid 5374] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5374, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./102/binderfs") = 0 umount2("./102/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./102/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./102/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./102/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./102/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./102/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./102") = 0 mkdir("./103", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5377 ./strace-static-x86_64: Process 5377 attached [pid 5377] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5377] chdir("./103") = 0 [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5377] setpgid(0, 0) = 0 [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5377] write(3, "1000", 4) = 4 [pid 5377] close(3) = 0 [pid 5377] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5377] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5377] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5377] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5378], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5378 [pid 5377] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5378 attached [pid 5378] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5378] memfd_create("syzkaller", 0) = 3 [pid 5378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 63.033620][ T5375] loop0: detected capacity change from 0 to 1024 [ 63.060979][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5378] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5378] munmap(0x7fce62e23000, 524288) = 0 [pid 5378] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5378] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5378] close(3) = 0 [pid 5378] mkdir("./bus", 0777) = 0 [pid 5378] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5378] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5378] chdir("./bus") = 0 [pid 5378] ioctl(4, LOOP_CLR_FD) = 0 [pid 5378] close(4) = 0 [pid 5378] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... futex resumed>) = 0 [pid 5377] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] <... futex resumed>) = 1 [pid 5378] unlink("./file2") = 0 [pid 5378] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... futex resumed>) = 0 [pid 5377] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5377] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5378] <... futex resumed>) = 1 [pid 5377] <... mprotect resumed>) = 0 [pid 5377] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5379], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5379 [pid 5377] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5378] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5379 attached [pid 5379] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5379] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5379] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... futex resumed>) = 0 [pid 5379] <... futex resumed>) = 1 [pid 5379] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5378] <... mount resumed>) = 0 [pid 5378] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5378] chdir(".") = 0 [pid 5378] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5378] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] exit_group(0 [pid 5378] <... futex resumed>) = ? [pid 5377] <... exit_group resumed>) = ? [pid 5378] +++ exited with 0 +++ [pid 5379] <... futex resumed>) = ? [pid 5379] +++ exited with 0 +++ [pid 5377] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./103/binderfs") = 0 umount2("./103/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./103/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./103/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./103/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./103/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./103/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./103") = 0 mkdir("./104", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5380 ./strace-static-x86_64: Process 5380 attached [pid 5380] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5380] chdir("./104") = 0 [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5380] setpgid(0, 0) = 0 [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5380] write(3, "1000", 4) = 4 [pid 5380] close(3) = 0 [pid 5380] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5380] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5380] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5380] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5381 attached , parent_tid=[5381], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5381 [pid 5380] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5380] <... futex resumed>) = 0 [pid 5381] memfd_create("syzkaller", 0) = 3 [pid 5381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 63.125022][ T5378] loop0: detected capacity change from 0 to 1024 [ 63.161292][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5380] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5381] munmap(0x7fce62e23000, 524288) = 0 [pid 5381] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5381] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5381] close(3) = 0 [pid 5381] mkdir("./bus", 0777) = 0 [pid 5381] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5381] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5381] chdir("./bus") = 0 [pid 5381] ioctl(4, LOOP_CLR_FD) = 0 [pid 5381] close(4) = 0 [pid 5381] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5380] <... futex resumed>) = 0 [pid 5380] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] unlink("./file2" [pid 5380] <... futex resumed>) = 0 [pid 5380] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5381] <... unlink resumed>) = 0 [pid 5381] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5380] <... futex resumed>) = 0 [pid 5380] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5380] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] mkdir(".", 0777 [pid 5380] <... futex resumed>) = 0 [pid 5380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5381] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5381] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5380] <... mmap resumed>) = 0x7fce62e82000 [pid 5380] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5380] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5382 attached , parent_tid=[5382], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5382 [pid 5380] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5380] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5382] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5382] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5381] <... mount resumed>) = 0 [pid 5381] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5381] chdir(".") = 0 [pid 5381] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5381] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5382] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... futex resumed>) = 0 [pid 5382] <... futex resumed>) = 1 [pid 5380] exit_group(0 [pid 5381] <... futex resumed>) = ? [pid 5380] <... exit_group resumed>) = ? [pid 5381] +++ exited with 0 +++ [pid 5382] +++ exited with 0 +++ [pid 5380] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5380, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./104/binderfs") = 0 umount2("./104/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./104/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./104/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./104/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./104/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./104/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./104") = 0 mkdir("./105", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 63.213559][ T5381] loop0: detected capacity change from 0 to 1024 [ 63.248113][ T41] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5383 ./strace-static-x86_64: Process 5383 attached [pid 5383] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5383] chdir("./105") = 0 [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5383] setpgid(0, 0) = 0 [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5383] write(3, "1000", 4) = 4 [pid 5383] close(3) = 0 [pid 5383] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5383] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5383] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5383] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5384 attached [pid 5384] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5384] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5383] <... clone resumed>, parent_tid=[5384], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5384 [pid 5383] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5384] <... futex resumed>) = 0 [pid 5383] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5384] memfd_create("syzkaller", 0) = 3 [pid 5384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5384] munmap(0x7fce62e23000, 524288) = 0 [pid 5384] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5384] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5384] close(3) = 0 [pid 5384] mkdir("./bus", 0777) = 0 [pid 5384] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5384] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5384] chdir("./bus") = 0 [pid 5384] ioctl(4, LOOP_CLR_FD) = 0 [pid 5384] close(4) = 0 [pid 5384] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... futex resumed>) = 0 [pid 5383] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5383] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] <... futex resumed>) = 1 [pid 5384] unlink("./file2") = 0 [pid 5384] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... futex resumed>) = 0 [pid 5383] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5383] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5383] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5383] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5385], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5385 [pid 5383] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5383] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5384] <... futex resumed>) = 1 [pid 5384] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5384] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5385 attached [pid 5385] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5385] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5385] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... futex resumed>) = 0 [pid 5385] <... futex resumed>) = 1 [pid 5385] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5384] <... mount resumed>) = 0 [pid 5384] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5384] chdir(".") = 0 [pid 5384] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5384] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5383] exit_group(0 [pid 5384] <... futex resumed>) = ? [pid 5383] <... exit_group resumed>) = ? [pid 5384] +++ exited with 0 +++ [pid 5385] <... futex resumed>) = ? [pid 5385] +++ exited with 0 +++ [pid 5383] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./105/binderfs") = 0 umount2("./105/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./105/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./105/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./105/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./105/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./105/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./105") = 0 mkdir("./106", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5386 ./strace-static-x86_64: Process 5386 attached [pid 5386] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5386] chdir("./106") = 0 [pid 5386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5386] setpgid(0, 0) = 0 [ 63.332349][ T5384] loop0: detected capacity change from 0 to 1024 [ 63.354983][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5386] write(3, "1000", 4) = 4 [pid 5386] close(3) = 0 [pid 5386] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5386] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5386] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5386] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5387 attached , parent_tid=[5387], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5387 [pid 5386] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5386] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5387] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5387] memfd_create("syzkaller", 0) = 3 [pid 5387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5387] munmap(0x7fce62e23000, 524288) = 0 [pid 5387] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5387] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5387] close(3) = 0 [pid 5387] mkdir("./bus", 0777) = 0 [pid 5387] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5387] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5387] chdir("./bus") = 0 [pid 5387] ioctl(4, LOOP_CLR_FD) = 0 [pid 5387] close(4) = 0 [pid 5387] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5386] <... futex resumed>) = 0 [pid 5386] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5386] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5387] <... futex resumed>) = 1 [pid 5387] unlink("./file2") = 0 [pid 5387] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5386] <... futex resumed>) = 0 [pid 5386] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5386] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5386] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5386] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5388], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5388 [pid 5387] <... futex resumed>) = 1 [pid 5386] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5387] mkdir(".", 0777 [pid 5386] <... futex resumed>) = 0 [pid 5387] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5386] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5387] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5388 attached [pid 5388] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5388] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5388] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5387] <... mount resumed>) = 0 [pid 5386] <... futex resumed>) = 0 [pid 5388] <... futex resumed>) = 1 [pid 5387] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5387] chdir(".") = 0 [pid 5387] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5387] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5388] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5386] exit_group(0 [pid 5387] <... futex resumed>) = ? [pid 5386] <... exit_group resumed>) = ? [pid 5387] +++ exited with 0 +++ [pid 5388] <... futex resumed>) = ? [pid 5388] +++ exited with 0 +++ [pid 5386] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5386, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./106/binderfs") = 0 umount2("./106/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./106/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./106/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./106/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./106/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./106/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./106") = 0 mkdir("./107", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5389 attached , child_tidptr=0x555556e9d5d0) = 5389 [ 63.428992][ T5387] loop0: detected capacity change from 0 to 1024 [ 63.456228][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5389] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5389] chdir("./107") = 0 [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5389] setpgid(0, 0) = 0 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5389] write(3, "1000", 4) = 4 [pid 5389] close(3) = 0 [pid 5389] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5389] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5389] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5389] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5389] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5390 attached , parent_tid=[5390], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5390 [pid 5389] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5389] <... futex resumed>) = 0 [pid 5389] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5390] memfd_create("syzkaller", 0) = 3 [pid 5390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5390] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5390] munmap(0x7fce62e23000, 524288) = 0 [pid 5390] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5390] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5390] close(3) = 0 [pid 5390] mkdir("./bus", 0777) = 0 [pid 5390] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5390] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5390] chdir("./bus") = 0 [pid 5390] ioctl(4, LOOP_CLR_FD) = 0 [pid 5390] close(4) = 0 [pid 5390] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5390] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5389] <... futex resumed>) = 0 [pid 5389] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5390] <... futex resumed>) = 0 [pid 5390] unlink("./file2" [pid 5389] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5390] <... unlink resumed>) = 0 [pid 5390] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5389] <... futex resumed>) = 0 [pid 5389] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5389] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5389] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5389] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5390] mkdir(".", 0777 [pid 5389] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5390] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5390] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5389] <... clone resumed>, parent_tid=[5391], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5391 ./strace-static-x86_64: Process 5391 attached [pid 5389] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5389] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5391] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5391] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5391] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5390] <... mount resumed>) = 0 [pid 5390] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5390] chdir(".") = 0 [pid 5390] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5389] <... futex resumed>) = 0 [pid 5390] <... futex resumed>) = 0 [pid 5389] exit_group(0) = ? [pid 5390] +++ exited with 0 +++ [pid 5391] <... futex resumed>) = ? [pid 5391] +++ exited with 0 +++ [pid 5389] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./107/binderfs") = 0 umount2("./107/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./107/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./107/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./107/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./107/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./107/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./107") = 0 mkdir("./108", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5392 ./strace-static-x86_64: Process 5392 attached [pid 5392] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5392] chdir("./108") = 0 [pid 5392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5392] setpgid(0, 0) = 0 [pid 5392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5392] write(3, "1000", 4) = 4 [pid 5392] close(3) = 0 [pid 5392] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5392] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [ 63.539351][ T5390] loop0: detected capacity change from 0 to 1024 [ 63.564225][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5392] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5392] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5393], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5393 [pid 5392] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5392] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5393 attached [pid 5393] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5393] memfd_create("syzkaller", 0) = 3 [pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5393] munmap(0x7fce62e23000, 524288) = 0 [pid 5393] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5393] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5393] close(3) = 0 [pid 5393] mkdir("./bus", 0777) = 0 [pid 5393] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5393] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5393] chdir("./bus") = 0 [pid 5393] ioctl(4, LOOP_CLR_FD) = 0 [pid 5393] close(4) = 0 [pid 5393] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5392] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5393] unlink("./file2" [pid 5392] <... futex resumed>) = 0 [pid 5392] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5393] <... unlink resumed>) = 0 [pid 5393] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5393] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5392] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5393] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5392] <... futex resumed>) = 0 [pid 5393] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5392] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5392] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5392] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5394], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5394 [pid 5392] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5392] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5394 attached [pid 5394] set_robust_list(0x7fce62ea29e0, 24 [pid 5393] <... mount resumed>) = 0 [pid 5393] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5393] chdir(".") = 0 [pid 5393] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5393] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5394] <... set_robust_list resumed>) = 0 [pid 5394] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5394] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5394] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] exit_group(0) = ? [pid 5393] <... futex resumed>) = ? [pid 5394] <... futex resumed>) = ? [pid 5394] +++ exited with 0 +++ [pid 5393] +++ exited with 0 +++ [pid 5392] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5392, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./108/binderfs") = 0 umount2("./108/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./108/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./108/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./108/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./108/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./108/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./108") = 0 mkdir("./109", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5395 ./strace-static-x86_64: Process 5395 attached [pid 5395] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5395] chdir("./109") = 0 [pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5395] setpgid(0, 0) = 0 [pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5395] write(3, "1000", 4) = 4 [pid 5395] close(3) = 0 [pid 5395] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5395] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5395] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5395] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5396 attached , parent_tid=[5396], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5396 [ 63.635974][ T5393] loop0: detected capacity change from 0 to 1024 [ 63.663460][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5396] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5396] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5395] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5396] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5395] <... futex resumed>) = 0 [pid 5395] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5396] memfd_create("syzkaller", 0) = 3 [pid 5396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5396] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5396] munmap(0x7fce62e23000, 524288) = 0 [pid 5396] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5396] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5396] close(3) = 0 [pid 5396] mkdir("./bus", 0777) = 0 [pid 5396] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5396] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5396] chdir("./bus") = 0 [pid 5396] ioctl(4, LOOP_CLR_FD) = 0 [pid 5396] close(4) = 0 [pid 5396] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5395] <... futex resumed>) = 0 [pid 5395] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5395] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5396] unlink("./file2") = 0 [pid 5396] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5395] <... futex resumed>) = 0 [pid 5395] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5396] mkdir(".", 0777 [pid 5395] <... futex resumed>) = 0 [pid 5395] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5396] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5396] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5395] <... mmap resumed>) = 0x7fce62e82000 [pid 5395] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5395] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5397 attached [pid 5397] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5397] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5395] <... clone resumed>, parent_tid=[5397], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5397 [pid 5395] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5395] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5397] <... futex resumed>) = 0 [pid 5397] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5397] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5395] <... futex resumed>) = 0 [pid 5396] <... mount resumed>) = 0 [pid 5396] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5396] chdir(".") = 0 [pid 5396] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5396] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5397] <... futex resumed>) = 1 [pid 5395] exit_group(0) = ? [pid 5396] <... futex resumed>) = ? [pid 5396] +++ exited with 0 +++ [pid 5397] +++ exited with 0 +++ [pid 5395] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5395, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./109/binderfs") = 0 umount2("./109/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./109/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./109/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./109/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./109/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./109/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./109") = 0 mkdir("./110", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5398 ./strace-static-x86_64: Process 5398 attached [pid 5398] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5398] chdir("./110") = 0 [pid 5398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5398] setpgid(0, 0) = 0 [ 63.727597][ T5396] loop0: detected capacity change from 0 to 1024 [ 63.760211][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5398] write(3, "1000", 4) = 4 [pid 5398] close(3) = 0 [pid 5398] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5398] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5398] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5398] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5399 attached , parent_tid=[5399], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5399 [pid 5398] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5398] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5399] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5399] memfd_create("syzkaller", 0) = 3 [pid 5399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5399] munmap(0x7fce62e23000, 524288) = 0 [pid 5399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5399] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5399] close(3) = 0 [pid 5399] mkdir("./bus", 0777) = 0 [pid 5399] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5399] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5399] chdir("./bus") = 0 [pid 5399] ioctl(4, LOOP_CLR_FD) = 0 [pid 5399] close(4) = 0 [pid 5399] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5398] <... futex resumed>) = 0 [pid 5398] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5398] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5399] unlink("./file2") = 0 [pid 5399] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5398] <... futex resumed>) = 0 [pid 5399] <... futex resumed>) = 1 [pid 5398] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5398] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5398] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5398] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5400], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5400 [pid 5398] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5400 attached [pid 5398] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5400] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5400] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5399] mkdir(".", 0777 [pid 5400] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5399] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5400] <... futex resumed>) = 1 [pid 5398] <... futex resumed>) = 0 [pid 5399] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5400] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5399] <... mount resumed>) = 0 [pid 5399] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5399] chdir(".") = 0 [pid 5399] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5399] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5398] exit_group(0) = ? [pid 5400] <... futex resumed>) = ? [pid 5400] +++ exited with 0 +++ [pid 5399] <... futex resumed>) = ? [pid 5399] +++ exited with 0 +++ [pid 5398] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5398, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./110/binderfs") = 0 umount2("./110/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./110/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./110/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./110/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./110/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./110/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./110") = 0 mkdir("./111", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5401 ./strace-static-x86_64: Process 5401 attached [pid 5401] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5401] chdir("./111") = 0 [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5401] setpgid(0, 0) = 0 [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5401] write(3, "1000", 4) = 4 [pid 5401] close(3) = 0 [pid 5401] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5401] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5401] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5401] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5402], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5402 [pid 5401] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5402 attached [pid 5402] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5402] memfd_create("syzkaller", 0) = 3 [pid 5402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 63.826984][ T5399] loop0: detected capacity change from 0 to 1024 [ 63.865661][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5402] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5402] munmap(0x7fce62e23000, 524288) = 0 [pid 5402] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5402] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5402] close(3) = 0 [pid 5402] mkdir("./bus", 0777) = 0 [pid 5402] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5402] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5402] chdir("./bus") = 0 [pid 5402] ioctl(4, LOOP_CLR_FD) = 0 [pid 5402] close(4) = 0 [pid 5402] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] <... futex resumed>) = 0 [pid 5401] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5402] <... futex resumed>) = 1 [pid 5402] unlink("./file2") = 0 [pid 5402] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] <... futex resumed>) = 0 [pid 5401] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5401] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5401] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5402] <... futex resumed>) = 1 [pid 5402] mkdir(".", 0777./strace-static-x86_64: Process 5403 attached [pid 5401] <... clone resumed>, parent_tid=[5403], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5403 [pid 5403] set_robust_list(0x7fce62ea29e0, 24 [pid 5401] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5403] <... set_robust_list resumed>) = 0 [pid 5402] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5402] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5403] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5403] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5401] <... futex resumed>) = 0 [pid 5403] <... futex resumed>) = 1 [pid 5403] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5402] <... mount resumed>) = 0 [pid 5402] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5402] chdir(".") = 0 [pid 5402] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5402] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5401] exit_group(0) = ? [pid 5403] <... futex resumed>) = ? [pid 5403] +++ exited with 0 +++ [pid 5402] <... futex resumed>) = ? [pid 5402] +++ exited with 0 +++ [pid 5401] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5401, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./111/binderfs") = 0 umount2("./111/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./111/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./111/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./111/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./111/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./111/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./111") = 0 mkdir("./112", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 63.914433][ T5402] loop0: detected capacity change from 0 to 1024 [ 63.952795][ T2393] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5404 ./strace-static-x86_64: Process 5404 attached [pid 5404] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5404] chdir("./112") = 0 [pid 5404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5404] setpgid(0, 0) = 0 [pid 5404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5404] write(3, "1000", 4) = 4 [pid 5404] close(3) = 0 [pid 5404] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5404] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5404] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5404] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5405 attached [pid 5405] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5405] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5404] <... clone resumed>, parent_tid=[5405], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5405 [pid 5404] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5405] <... futex resumed>) = 0 [pid 5404] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5405] memfd_create("syzkaller", 0) = 3 [pid 5405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5405] munmap(0x7fce62e23000, 524288) = 0 [pid 5405] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5405] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5405] close(3) = 0 [pid 5405] mkdir("./bus", 0777) = 0 [pid 5405] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5405] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5405] chdir("./bus") = 0 [pid 5405] ioctl(4, LOOP_CLR_FD) = 0 [pid 5405] close(4) = 0 [pid 5405] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5404] <... futex resumed>) = 0 [pid 5405] <... futex resumed>) = 1 [pid 5404] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5405] unlink("./file2" [pid 5404] <... futex resumed>) = 0 [pid 5404] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5405] <... unlink resumed>) = 0 [pid 5405] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5404] <... futex resumed>) = 0 [pid 5404] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5405] mkdir(".", 0777 [pid 5404] <... futex resumed>) = 0 [pid 5404] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5405] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5405] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5404] <... mmap resumed>) = 0x7fce62e82000 [pid 5404] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5404] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5406], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5406 [pid 5404] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5404] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5406 attached [pid 5406] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5406] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5406] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5404] <... futex resumed>) = 0 [pid 5406] <... futex resumed>) = 1 [pid 5406] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5405] <... mount resumed>) = 0 [pid 5405] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5405] chdir(".") = 0 [pid 5405] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5405] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5404] exit_group(0 [pid 5405] <... futex resumed>) = ? [pid 5404] <... exit_group resumed>) = ? [pid 5405] +++ exited with 0 +++ [pid 5406] <... futex resumed>) = ? [pid 5406] +++ exited with 0 +++ [pid 5404] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5404, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./112/binderfs") = 0 umount2("./112/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./112/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./112/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./112/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./112/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./112/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./112") = 0 mkdir("./113", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 64.025937][ T5405] loop0: detected capacity change from 0 to 1024 [ 64.060493][ T41] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5407 attached , child_tidptr=0x555556e9d5d0) = 5407 [pid 5407] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5407] chdir("./113") = 0 [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5407] setpgid(0, 0) = 0 [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5407] write(3, "1000", 4) = 4 [pid 5407] close(3) = 0 [pid 5407] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5407] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5407] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5407] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5408 attached , parent_tid=[5408], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5408 [pid 5408] set_robust_list(0x7fce6b2439e0, 24 [pid 5407] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5408] <... set_robust_list resumed>) = 0 [pid 5407] <... futex resumed>) = 0 [pid 5407] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5408] memfd_create("syzkaller", 0) = 3 [pid 5408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5408] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5408] munmap(0x7fce62e23000, 524288) = 0 [pid 5408] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5408] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5408] close(3) = 0 [pid 5408] mkdir("./bus", 0777) = 0 [pid 5408] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5408] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5408] chdir("./bus") = 0 [pid 5408] ioctl(4, LOOP_CLR_FD) = 0 [pid 5408] close(4) = 0 [pid 5408] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5407] <... futex resumed>) = 0 [pid 5408] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5407] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5408] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5407] <... futex resumed>) = 0 [pid 5407] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5408] unlink("./file2") = 0 [pid 5408] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5407] <... futex resumed>) = 0 [pid 5408] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5407] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5408] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5407] <... futex resumed>) = 0 [pid 5408] mkdir(".", 0777 [pid 5407] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5408] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5407] <... futex resumed>) = 0 [pid 5408] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5407] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5407] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5409], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5409 [pid 5407] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5407] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5409 attached [pid 5409] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5409] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5409] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] <... futex resumed>) = 0 [pid 5409] <... futex resumed>) = 1 [pid 5409] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5408] <... mount resumed>) = 0 [pid 5408] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5408] chdir(".") = 0 [pid 5408] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5408] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5407] exit_group(0 [pid 5408] <... futex resumed>) = ? [pid 5407] <... exit_group resumed>) = ? [pid 5408] +++ exited with 0 +++ [pid 5409] <... futex resumed>) = ? [pid 5409] +++ exited with 0 +++ [pid 5407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5407, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./113/binderfs") = 0 umount2("./113/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./113/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./113/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./113/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./113/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./113/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./113") = 0 mkdir("./114", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5410 ./strace-static-x86_64: Process 5410 attached [pid 5410] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5410] chdir("./114") = 0 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5410] setpgid(0, 0) = 0 [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5410] write(3, "1000", 4) = 4 [pid 5410] close(3) = 0 [pid 5410] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5410] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [ 64.141170][ T5408] loop0: detected capacity change from 0 to 1024 [ 64.178347][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5410] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5410] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5411 attached , parent_tid=[5411], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5411 [pid 5411] set_robust_list(0x7fce6b2439e0, 24 [pid 5410] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] <... set_robust_list resumed>) = 0 [pid 5410] <... futex resumed>) = 0 [pid 5410] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5411] memfd_create("syzkaller", 0) = 3 [pid 5411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5411] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5411] munmap(0x7fce62e23000, 524288) = 0 [pid 5411] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5411] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5411] close(3) = 0 [pid 5411] mkdir("./bus", 0777) = 0 [pid 5411] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5411] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5411] chdir("./bus") = 0 [pid 5411] ioctl(4, LOOP_CLR_FD) = 0 [pid 5411] close(4) = 0 [pid 5411] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5410] <... futex resumed>) = 0 [pid 5411] unlink("./file2" [pid 5410] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5410] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5411] <... unlink resumed>) = 0 [pid 5411] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5410] <... futex resumed>) = 0 [pid 5410] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] mkdir(".", 0777 [pid 5410] <... futex resumed>) = 0 [pid 5411] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5410] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5410] <... futex resumed>) = 0 [pid 5410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5410] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5410] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5412 attached [pid 5411] <... mount resumed>) = 0 [pid 5412] set_robust_list(0x7fce62ea29e0, 24 [pid 5411] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5410] <... clone resumed>, parent_tid=[5412], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5412 [pid 5412] <... set_robust_list resumed>) = 0 [pid 5411] <... openat resumed>) = 4 [pid 5410] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] chdir("." [pid 5410] <... futex resumed>) = 0 [pid 5411] <... chdir resumed>) = 0 [pid 5410] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5411] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5411] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5412] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5412] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5410] <... futex resumed>) = 0 [pid 5410] exit_group(0 [pid 5412] <... futex resumed>) = ? [pid 5411] <... futex resumed>) = ? [pid 5410] <... exit_group resumed>) = ? [pid 5412] +++ exited with 0 +++ [pid 5411] +++ exited with 0 +++ [pid 5410] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5410, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./114/binderfs") = 0 umount2("./114/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./114/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./114/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./114/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./114/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./114/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./114") = 0 mkdir("./115", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5413 ./strace-static-x86_64: Process 5413 attached [ 64.233593][ T5411] loop0: detected capacity change from 0 to 1024 [ 64.270988][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5413] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5413] chdir("./115") = 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5413] setpgid(0, 0) = 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5413] write(3, "1000", 4) = 4 [pid 5413] close(3) = 0 [pid 5413] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5413] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5413] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5413] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5414 attached [pid 5414] set_robust_list(0x7fce6b2439e0, 24 [pid 5413] <... clone resumed>, parent_tid=[5414], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5414 [pid 5414] <... set_robust_list resumed>) = 0 [pid 5413] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5414] memfd_create("syzkaller", 0 [pid 5413] <... futex resumed>) = 0 [pid 5413] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5414] <... memfd_create resumed>) = 3 [pid 5414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5414] munmap(0x7fce62e23000, 524288) = 0 [pid 5414] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5414] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5414] close(3) = 0 [pid 5414] mkdir("./bus", 0777) = 0 [pid 5414] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5414] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5414] chdir("./bus") = 0 [pid 5414] ioctl(4, LOOP_CLR_FD) = 0 [pid 5414] close(4) = 0 [pid 5414] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5413] <... futex resumed>) = 0 [pid 5413] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5414] unlink("./file2" [pid 5413] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5414] <... unlink resumed>) = 0 [pid 5414] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5414] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] <... futex resumed>) = 0 [pid 5413] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5413] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5413] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5413] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5415 attached , parent_tid=[5415], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5415 [pid 5413] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5413] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5414] <... futex resumed>) = 0 [pid 5414] mkdir(".", 0777 [pid 5415] set_robust_list(0x7fce62ea29e0, 24 [pid 5414] <... mkdir resumed>) = -1 EEXIST (File exists) [ 64.337240][ T5414] loop0: detected capacity change from 0 to 1024 [pid 5414] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5415] <... set_robust_list resumed>) = 0 [pid 5415] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5415] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5413] <... futex resumed>) = 0 [pid 5415] <... futex resumed>) = 1 [pid 5415] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5414] <... mount resumed>) = 0 [pid 5414] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5414] chdir(".") = 0 [pid 5414] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5414] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] exit_group(0 [pid 5415] <... futex resumed>) = ? [pid 5414] <... futex resumed>) = ? [pid 5413] <... exit_group resumed>) = ? [pid 5415] +++ exited with 0 +++ [pid 5414] +++ exited with 0 +++ [pid 5413] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./115/binderfs") = 0 umount2("./115/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./115/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./115/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./115/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./115/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./115/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./115") = 0 mkdir("./116", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5416 ./strace-static-x86_64: Process 5416 attached [pid 5416] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5416] chdir("./116") = 0 [pid 5416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5416] setpgid(0, 0) = 0 [pid 5416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5416] write(3, "1000", 4) = 4 [pid 5416] close(3) = 0 [pid 5416] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5416] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5416] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5416] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5417 attached [pid 5417] set_robust_list(0x7fce6b2439e0, 24 [pid 5416] <... clone resumed>, parent_tid=[5417], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5417 [pid 5417] <... set_robust_list resumed>) = 0 [pid 5416] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5416] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5417] memfd_create("syzkaller", 0) = 3 [pid 5417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 64.378919][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5417] munmap(0x7fce62e23000, 524288) = 0 [pid 5417] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5417] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5417] close(3) = 0 [pid 5417] mkdir("./bus", 0777) = 0 [pid 5417] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5417] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5417] chdir("./bus") = 0 [pid 5417] ioctl(4, LOOP_CLR_FD) = 0 [pid 5417] close(4) = 0 [pid 5417] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5416] <... futex resumed>) = 0 [pid 5417] unlink("./file2" [pid 5416] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5416] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5417] <... unlink resumed>) = 0 [pid 5417] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5416] <... futex resumed>) = 0 [pid 5417] mkdir(".", 0777 [pid 5416] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5417] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5416] <... futex resumed>) = 0 [pid 5417] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5416] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5416] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5416] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5418], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5418 [pid 5416] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5416] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5418 attached [pid 5418] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5418] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5418] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5416] <... futex resumed>) = 0 [pid 5418] <... futex resumed>) = 1 [pid 5418] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5417] <... mount resumed>) = 0 [pid 5417] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5417] chdir(".") = 0 [pid 5417] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5417] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5416] exit_group(0 [pid 5417] <... futex resumed>) = ? [pid 5416] <... exit_group resumed>) = ? [pid 5417] +++ exited with 0 +++ [pid 5418] <... futex resumed>) = ? [pid 5418] +++ exited with 0 +++ [pid 5416] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5416, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./116/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./116/binderfs") = 0 umount2("./116/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./116/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./116/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./116/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./116/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./116/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./116") = 0 mkdir("./117", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 64.445950][ T5417] loop0: detected capacity change from 0 to 1024 [ 64.485624][ T2393] hfsplus: b-tree write err: -5, ino 4 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5419 attached , child_tidptr=0x555556e9d5d0) = 5419 [pid 5419] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5419] chdir("./117") = 0 [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5419] setpgid(0, 0) = 0 [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5419] write(3, "1000", 4) = 4 [pid 5419] close(3) = 0 [pid 5419] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5419] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5419] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5419] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5420 attached , parent_tid=[5420], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5420 [pid 5419] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5419] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5420] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5420] memfd_create("syzkaller", 0) = 3 [pid 5420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5420] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5420] munmap(0x7fce62e23000, 524288) = 0 [pid 5420] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5420] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5420] close(3) = 0 [pid 5420] mkdir("./bus", 0777) = 0 [pid 5420] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5420] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5420] chdir("./bus") = 0 [pid 5420] ioctl(4, LOOP_CLR_FD) = 0 [pid 5420] close(4) = 0 [pid 5420] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5419] <... futex resumed>) = 0 [pid 5420] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5419] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5419] <... futex resumed>) = 0 [pid 5420] unlink("./file2" [pid 5419] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5420] <... unlink resumed>) = 0 [pid 5420] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5419] <... futex resumed>) = 0 [pid 5420] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5419] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5419] <... futex resumed>) = 0 [pid 5420] mkdir(".", 0777 [pid 5419] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5419] <... futex resumed>) = 0 [pid 5420] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [ 64.557038][ T5420] loop0: detected capacity change from 0 to 1024 [pid 5419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5419] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5419] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5420] <... mount resumed>) = 0 [pid 5420] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5419] <... clone resumed>, parent_tid=[5421], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5421 [pid 5420] <... openat resumed>) = 4 [pid 5419] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] chdir("." [pid 5419] <... futex resumed>) = 0 [pid 5419] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5420] <... chdir resumed>) = 0 [pid 5420] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5420] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5421 attached [pid 5421] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5421] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5421] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5419] <... futex resumed>) = 0 [pid 5421] <... futex resumed>) = 1 [pid 5419] exit_group(0 [pid 5421] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5420] <... futex resumed>) = ? [pid 5419] <... exit_group resumed>) = ? [pid 5421] +++ exited with 0 +++ [pid 5420] +++ exited with 0 +++ [pid 5419] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5419, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./117/binderfs") = 0 umount2("./117/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./117/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./117/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./117/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./117/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./117/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./117") = 0 mkdir("./118", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5422 ./strace-static-x86_64: Process 5422 attached [pid 5422] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5422] chdir("./118") = 0 [pid 5422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5422] setpgid(0, 0) = 0 [pid 5422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5422] write(3, "1000", 4) = 4 [pid 5422] close(3) = 0 [pid 5422] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5422] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5422] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5422] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5423], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5423 [pid 5422] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5422] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5423 attached [pid 5423] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5423] memfd_create("syzkaller", 0) = 3 [pid 5423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5423] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5423] munmap(0x7fce62e23000, 524288) = 0 [ 64.597750][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5423] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5423] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5423] close(3) = 0 [pid 5423] mkdir("./bus", 0777) = 0 [pid 5423] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5423] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5423] chdir("./bus") = 0 [pid 5423] ioctl(4, LOOP_CLR_FD) = 0 [pid 5423] close(4) = 0 [pid 5423] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5423] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5422] <... futex resumed>) = 0 [pid 5422] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5422] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5423] <... futex resumed>) = 0 [pid 5423] unlink("./file2") = 0 [pid 5423] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5422] <... futex resumed>) = 0 [pid 5422] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5422] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5422] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5422] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5424 attached [pid 5424] set_robust_list(0x7fce62ea29e0, 24 [pid 5422] <... clone resumed>, parent_tid=[5424], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5424 [pid 5424] <... set_robust_list resumed>) = 0 [pid 5424] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5422] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5424] <... openat resumed>) = -1 EEXIST (File exists) [pid 5422] <... futex resumed>) = 0 [pid 5424] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5422] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5424] <... futex resumed>) = 0 [pid 5422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5424] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5423] <... futex resumed>) = 1 [pid 5423] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5423] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5423] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5423] chdir(".") = 0 [pid 5423] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5423] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5422] exit_group(0) = ? [pid 5424] <... futex resumed>) = ? [pid 5424] +++ exited with 0 +++ [pid 5423] <... futex resumed>) = ? [pid 5423] +++ exited with 0 +++ [pid 5422] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5422, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./118/binderfs") = 0 umount2("./118/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./118/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./118/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./118/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./118/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 [ 64.660298][ T5423] loop0: detected capacity change from 0 to 1024 [ 64.699232][ T11] hfsplus: b-tree write err: -5, ino 4 rmdir("./118/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./118") = 0 mkdir("./119", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5425 ./strace-static-x86_64: Process 5425 attached [pid 5425] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5425] chdir("./119") = 0 [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5425] setpgid(0, 0) = 0 [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5425] write(3, "1000", 4) = 4 [pid 5425] close(3) = 0 [pid 5425] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5425] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5425] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5425] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5426], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5426 [pid 5425] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5425] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5426 attached [pid 5426] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5426] memfd_create("syzkaller", 0) = 3 [pid 5426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5426] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5426] munmap(0x7fce62e23000, 524288) = 0 [pid 5426] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5426] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5426] close(3) = 0 [pid 5426] mkdir("./bus", 0777) = 0 [pid 5426] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5426] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5426] chdir("./bus") = 0 [pid 5426] ioctl(4, LOOP_CLR_FD) = 0 [pid 5426] close(4) = 0 [pid 5426] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5425] <... futex resumed>) = 0 [pid 5425] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5425] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5426] <... futex resumed>) = 1 [pid 5426] unlink("./file2") = 0 [pid 5426] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5425] <... futex resumed>) = 0 [pid 5425] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5425] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5425] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5425] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5427], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5427 [pid 5425] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5425] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5426] <... futex resumed>) = 1 [pid 5426] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5426] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 ./strace-static-x86_64: Process 5427 attached [pid 5426] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5427] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5427] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5426] <... openat resumed>) = 4 [pid 5427] <... openat resumed>) = -1 EEXIST (File exists) [pid 5426] chdir("." [pid 5427] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5426] <... chdir resumed>) = 0 [pid 5425] <... futex resumed>) = 0 [pid 5427] <... futex resumed>) = 1 [pid 5426] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5426] <... futex resumed>) = 0 [pid 5426] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5425] exit_group(0) = ? [pid 5426] <... futex resumed>) = ? [pid 5427] <... futex resumed>) = ? [pid 5426] +++ exited with 0 +++ [pid 5427] +++ exited with 0 +++ [pid 5425] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5425, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./119/binderfs") = 0 umount2("./119/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./119/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./119/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./119/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./119/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./119/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./119") = 0 mkdir("./120", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5428 ./strace-static-x86_64: Process 5428 attached [pid 5428] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5428] chdir("./120") = 0 [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5428] setpgid(0, 0) = 0 [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5428] write(3, "1000", 4) = 4 [pid 5428] close(3) = 0 [ 64.758182][ T5426] loop0: detected capacity change from 0 to 1024 [ 64.786857][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5428] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5428] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5428] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5428] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5429 attached [pid 5429] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5429] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5428] <... clone resumed>, parent_tid=[5429], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5429 [pid 5428] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5429] <... futex resumed>) = 0 [pid 5429] memfd_create("syzkaller", 0 [pid 5428] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5429] <... memfd_create resumed>) = 3 [pid 5429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5429] munmap(0x7fce62e23000, 524288) = 0 [pid 5429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5429] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5429] close(3) = 0 [pid 5429] mkdir("./bus", 0777) = 0 [pid 5429] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5429] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5429] chdir("./bus") = 0 [pid 5429] ioctl(4, LOOP_CLR_FD) = 0 [pid 5429] close(4) = 0 [pid 5429] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5429] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5428] <... futex resumed>) = 0 [pid 5428] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5428] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5429] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5429] unlink("./file2") = 0 [pid 5429] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5428] <... futex resumed>) = 0 [pid 5429] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5428] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5429] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5428] <... futex resumed>) = 0 [pid 5429] mkdir(".", 0777 [pid 5428] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5429] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5428] <... futex resumed>) = 0 [pid 5428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5428] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5428] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5429] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5428] <... clone resumed>, parent_tid=[5430], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5430 [pid 5428] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5430 attached ) = 0 [pid 5430] set_robust_list(0x7fce62ea29e0, 24 [pid 5428] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5430] <... set_robust_list resumed>) = 0 [pid 5430] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5430] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5428] <... futex resumed>) = 0 [pid 5430] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5429] <... mount resumed>) = 0 [pid 5429] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5429] chdir(".") = 0 [pid 5429] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5428] exit_group(0 [pid 5429] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5428] <... exit_group resumed>) = ? [pid 5429] <... futex resumed>) = ? [pid 5430] <... futex resumed>) = ? [pid 5429] +++ exited with 0 +++ [pid 5430] +++ exited with 0 +++ [pid 5428] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5428, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./120/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./120/binderfs") = 0 umount2("./120/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./120/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./120/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./120/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./120/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./120/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./120") = 0 mkdir("./121", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5431 ./strace-static-x86_64: Process 5431 attached [pid 5431] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5431] chdir("./121") = 0 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5431] setpgid(0, 0) = 0 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5431] write(3, "1000", 4) = 4 [pid 5431] close(3) = 0 [pid 5431] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5431] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5431] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5431] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5432 attached [pid 5432] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5432] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5431] <... clone resumed>, parent_tid=[5432], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5432 [pid 5431] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5432] <... futex resumed>) = 0 [pid 5431] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5432] memfd_create("syzkaller", 0) = 3 [pid 5432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 64.853337][ T5429] loop0: detected capacity change from 0 to 1024 [ 64.882633][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5432] munmap(0x7fce62e23000, 524288) = 0 [pid 5432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5432] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5432] close(3) = 0 [pid 5432] mkdir("./bus", 0777) = 0 [pid 5432] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5432] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5432] chdir("./bus") = 0 [pid 5432] ioctl(4, LOOP_CLR_FD) = 0 [pid 5432] close(4) = 0 [pid 5432] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5431] <... futex resumed>) = 0 [pid 5431] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5431] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5432] <... futex resumed>) = 1 [pid 5432] unlink("./file2") = 0 [pid 5432] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5431] <... futex resumed>) = 0 [pid 5431] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5431] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5431] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5431] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5433], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5433 [pid 5431] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5433 attached ) = 0 [pid 5433] set_robust_list(0x7fce62ea29e0, 24 [pid 5431] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5433] <... set_robust_list resumed>) = 0 [pid 5433] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5432] <... futex resumed>) = 1 [pid 5433] <... openat resumed>) = -1 EEXIST (File exists) [pid 5433] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5432] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5432] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5433] <... futex resumed>) = 1 [pid 5431] <... futex resumed>) = 0 [pid 5433] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5432] <... mount resumed>) = 0 [pid 5432] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5432] chdir(".") = 0 [pid 5432] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5432] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5431] exit_group(0 [pid 5433] <... futex resumed>) = ? [pid 5432] <... futex resumed>) = ? [pid 5431] <... exit_group resumed>) = ? [pid 5432] +++ exited with 0 +++ [pid 5433] +++ exited with 0 +++ [pid 5431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5431, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./121/binderfs") = 0 umount2("./121/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./121/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./121/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./121/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./121/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./121/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./121") = 0 mkdir("./122", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5434 ./strace-static-x86_64: Process 5434 attached [pid 5434] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5434] chdir("./122") = 0 [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 64.942954][ T5432] loop0: detected capacity change from 0 to 1024 [ 64.975663][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5434] setpgid(0, 0) = 0 [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5434] write(3, "1000", 4) = 4 [pid 5434] close(3) = 0 [pid 5434] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5434] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5434] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5434] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5435 attached , parent_tid=[5435], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5435 [pid 5435] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5435] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5434] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5435] <... futex resumed>) = 0 [pid 5434] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5435] memfd_create("syzkaller", 0) = 3 [pid 5435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5435] munmap(0x7fce62e23000, 524288) = 0 [pid 5435] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5435] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5435] close(3) = 0 [pid 5435] mkdir("./bus", 0777) = 0 [pid 5435] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5435] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5435] chdir("./bus") = 0 [pid 5435] ioctl(4, LOOP_CLR_FD) = 0 [pid 5435] close(4) = 0 [pid 5435] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] <... futex resumed>) = 0 [pid 5434] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5434] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5435] <... futex resumed>) = 1 [pid 5435] unlink("./file2") = 0 [pid 5435] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] <... futex resumed>) = 0 [pid 5434] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5434] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5434] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5434] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5436], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5436 [pid 5434] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5434] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5435] <... futex resumed>) = 1 [pid 5435] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5435] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5436 attached [pid 5436] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5436] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5436] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] <... futex resumed>) = 0 [pid 5436] <... futex resumed>) = 1 [pid 5436] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5435] <... mount resumed>) = 0 [pid 5435] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5435] chdir(".") = 0 [pid 5435] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5434] exit_group(0) = ? [pid 5435] +++ exited with 0 +++ [pid 5436] <... futex resumed>) = ? [pid 5436] +++ exited with 0 +++ [pid 5434] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5434, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./122/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./122/binderfs") = 0 umount2("./122/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./122/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./122/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./122/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./122/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./122/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./122") = 0 mkdir("./123", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5437 ./strace-static-x86_64: Process 5437 attached [pid 5437] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5437] chdir("./123") = 0 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5437] setpgid(0, 0) = 0 [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5437] write(3, "1000", 4) = 4 [pid 5437] close(3) = 0 [pid 5437] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5437] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5437] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5437] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5438], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5438 [pid 5437] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5438 attached [pid 5438] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5438] memfd_create("syzkaller", 0) = 3 [pid 5438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5438] munmap(0x7fce62e23000, 524288) = 0 [pid 5438] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 65.043599][ T5435] loop0: detected capacity change from 0 to 1024 [ 65.074841][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5438] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5438] close(3) = 0 [pid 5438] mkdir("./bus", 0777) = 0 [pid 5438] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5438] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5438] chdir("./bus") = 0 [pid 5438] ioctl(4, LOOP_CLR_FD) = 0 [pid 5438] close(4) = 0 [pid 5438] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... futex resumed>) = 0 [pid 5437] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5438] <... futex resumed>) = 1 [pid 5438] unlink("./file2") = 0 [pid 5438] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... futex resumed>) = 0 [pid 5437] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5437] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5437] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5439 attached , parent_tid=[5439], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5439 [pid 5439] set_robust_list(0x7fce62ea29e0, 24 [pid 5437] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5439] <... set_robust_list resumed>) = 0 [pid 5438] <... futex resumed>) = 1 [pid 5438] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5439] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5438] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5439] <... openat resumed>) = -1 EEXIST (File exists) [pid 5439] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... futex resumed>) = 0 [pid 5439] <... futex resumed>) = 1 [pid 5439] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5438] <... mount resumed>) = 0 [pid 5438] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5438] chdir(".") = 0 [pid 5438] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5438] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5437] exit_group(0) = ? [pid 5439] <... futex resumed>) = ? [pid 5438] <... futex resumed>) = ? [pid 5439] +++ exited with 0 +++ [pid 5438] +++ exited with 0 +++ [pid 5437] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./123/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./123/binderfs") = 0 umount2("./123/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./123/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./123/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./123/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./123/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./123/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./123") = 0 mkdir("./124", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 [ 65.123592][ T5438] loop0: detected capacity change from 0 to 1024 [ 65.162104][ T11] hfsplus: b-tree write err: -5, ino 4 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5440 ./strace-static-x86_64: Process 5440 attached [pid 5440] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5440] chdir("./124") = 0 [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5440] setpgid(0, 0) = 0 [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5440] write(3, "1000", 4) = 4 [pid 5440] close(3) = 0 [pid 5440] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5440] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5440] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5440] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5441], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5441 [pid 5440] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5440] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5441 attached [pid 5441] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5441] memfd_create("syzkaller", 0) = 3 [pid 5441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5441] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5441] munmap(0x7fce62e23000, 524288) = 0 [pid 5441] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5441] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5441] close(3) = 0 [pid 5441] mkdir("./bus", 0777) = 0 [pid 5441] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5441] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5441] chdir("./bus") = 0 [pid 5441] ioctl(4, LOOP_CLR_FD) = 0 [pid 5441] close(4) = 0 [pid 5441] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5440] <... futex resumed>) = 0 [pid 5440] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5440] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5441] <... futex resumed>) = 1 [pid 5441] unlink("./file2") = 0 [pid 5441] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5440] <... futex resumed>) = 0 [pid 5440] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5440] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5440] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5440] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5442 attached [pid 5442] set_robust_list(0x7fce62ea29e0, 24 [pid 5440] <... clone resumed>, parent_tid=[5442], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5442 [pid 5442] <... set_robust_list resumed>) = 0 [pid 5440] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5442] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5440] <... futex resumed>) = 0 [pid 5440] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5442] <... openat resumed>) = -1 EEXIST (File exists) [pid 5442] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5440] <... futex resumed>) = 0 [pid 5442] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5441] <... futex resumed>) = 1 [pid 5441] mkdir(".", 0777) = -1 EEXIST (File exists) [ 65.226237][ T5441] loop0: detected capacity change from 0 to 1024 [pid 5441] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6") = 0 [pid 5441] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5441] chdir(".") = 0 [pid 5441] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5441] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5440] exit_group(0 [pid 5442] <... futex resumed>) = ? [pid 5441] <... futex resumed>) = ? [pid 5440] <... exit_group resumed>) = ? [pid 5442] +++ exited with 0 +++ [pid 5441] +++ exited with 0 +++ [pid 5440] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5440, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./124/binderfs") = 0 umount2("./124/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./124/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./124/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./124/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./124/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./124/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./124") = 0 mkdir("./125", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5443 ./strace-static-x86_64: Process 5443 attached [pid 5443] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5443] chdir("./125") = 0 [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5443] setpgid(0, 0) = 0 [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5443] write(3, "1000", 4) = 4 [pid 5443] close(3) = 0 [pid 5443] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5443] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 65.270284][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5443] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5443] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5444 attached , parent_tid=[5444], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5444 [pid 5444] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5444] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5443] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5443] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5444] memfd_create("syzkaller", 0) = 3 [pid 5444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5444] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5444] munmap(0x7fce62e23000, 524288) = 0 [pid 5444] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5444] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5444] close(3) = 0 [pid 5444] mkdir("./bus", 0777) = 0 [pid 5444] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5444] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5444] chdir("./bus") = 0 [pid 5444] ioctl(4, LOOP_CLR_FD) = 0 [pid 5444] close(4) = 0 [pid 5444] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5443] <... futex resumed>) = 0 [pid 5443] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5443] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5444] unlink("./file2") = 0 [pid 5444] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5443] <... futex resumed>) = 0 [pid 5444] mkdir(".", 0777 [pid 5443] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5443] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5444] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5443] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE [pid 5444] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5443] <... mprotect resumed>) = 0 [pid 5443] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5445], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5445 [pid 5443] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5443] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5445 attached [pid 5445] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5445] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5445] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5443] <... futex resumed>) = 0 [pid 5445] <... futex resumed>) = 1 [pid 5445] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5444] <... mount resumed>) = 0 [pid 5444] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5444] chdir(".") = 0 [pid 5444] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5444] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5443] exit_group(0 [pid 5444] <... futex resumed>) = ? [pid 5443] <... exit_group resumed>) = ? [pid 5444] +++ exited with 0 +++ [pid 5445] <... futex resumed>) = ? [pid 5445] +++ exited with 0 +++ [pid 5443] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./125/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./125/binderfs") = 0 umount2("./125/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./125/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./125/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./125/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./125/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./125/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./125") = 0 mkdir("./126", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5446 ./strace-static-x86_64: Process 5446 attached [pid 5446] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5446] chdir("./126") = 0 [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5446] setpgid(0, 0) = 0 [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5446] write(3, "1000", 4) = 4 [pid 5446] close(3) = 0 [pid 5446] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5446] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 65.345271][ T5444] loop0: detected capacity change from 0 to 1024 [ 65.374210][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5446] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5446] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5447 attached , parent_tid=[5447], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5447 [pid 5447] set_robust_list(0x7fce6b2439e0, 24 [pid 5446] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5447] <... set_robust_list resumed>) = 0 [pid 5446] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5447] memfd_create("syzkaller", 0) = 3 [pid 5447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5447] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5447] munmap(0x7fce62e23000, 524288) = 0 [pid 5447] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5447] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5447] close(3) = 0 [pid 5447] mkdir("./bus", 0777) = 0 [pid 5447] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5447] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5447] chdir("./bus") = 0 [pid 5447] ioctl(4, LOOP_CLR_FD) = 0 [pid 5447] close(4) = 0 [pid 5447] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5446] <... futex resumed>) = 0 [pid 5446] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5446] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5447] <... futex resumed>) = 1 [pid 5447] unlink("./file2") = 0 [pid 5447] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5446] <... futex resumed>) = 0 [pid 5446] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5446] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5446] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5446] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5448], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5448 [pid 5446] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5446] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5447] <... futex resumed>) = 1 [pid 5447] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5447] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5448 attached [pid 5448] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5448] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5448] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5446] <... futex resumed>) = 0 [pid 5448] <... futex resumed>) = 1 [pid 5448] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5447] <... mount resumed>) = 0 [pid 5447] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5447] chdir(".") = 0 [pid 5447] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5447] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5446] exit_group(0 [pid 5447] <... futex resumed>) = ? [pid 5446] <... exit_group resumed>) = ? [pid 5447] +++ exited with 0 +++ [pid 5448] <... futex resumed>) = ? [pid 5448] +++ exited with 0 +++ [pid 5446] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5446, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./126", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./126/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./126/binderfs") = 0 umount2("./126/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./126/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./126/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./126/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./126/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./126/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./126") = 0 mkdir("./127", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5449 attached , child_tidptr=0x555556e9d5d0) = 5449 [pid 5449] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5449] chdir("./127") = 0 [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5449] setpgid(0, 0) = 0 [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5449] write(3, "1000", 4) = 4 [pid 5449] close(3) = 0 [pid 5449] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5449] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [ 65.437949][ T5447] loop0: detected capacity change from 0 to 1024 [ 65.465548][ T11] hfsplus: b-tree write err: -5, ino 4 [pid 5449] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5449] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5450 attached , parent_tid=[5450], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5450 [pid 5450] set_robust_list(0x7fce6b2439e0, 24 [pid 5449] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5449] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5450] <... set_robust_list resumed>) = 0 [pid 5450] memfd_create("syzkaller", 0) = 3 [pid 5450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5450] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5450] munmap(0x7fce62e23000, 524288) = 0 [pid 5450] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5450] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5450] close(3) = 0 [pid 5450] mkdir("./bus", 0777) = 0 [pid 5450] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5450] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5450] chdir("./bus") = 0 [pid 5450] ioctl(4, LOOP_CLR_FD) = 0 [pid 5450] close(4) = 0 [pid 5450] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5449] <... futex resumed>) = 0 [pid 5449] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5449] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5450] <... futex resumed>) = 1 [pid 5450] unlink("./file2") = 0 [pid 5450] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5449] <... futex resumed>) = 0 [pid 5449] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5449] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5449] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5450] <... futex resumed>) = 1 [pid 5449] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5450] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5449] <... clone resumed>, parent_tid=[5451], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5451 [pid 5450] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5449] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5449] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5451 attached [pid 5451] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5451] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5451] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5449] <... futex resumed>) = 0 [pid 5451] <... futex resumed>) = 1 [pid 5451] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5450] <... mount resumed>) = 0 [pid 5450] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5450] chdir(".") = 0 [pid 5450] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5450] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5449] exit_group(0 [pid 5451] <... futex resumed>) = ? [pid 5450] <... futex resumed>) = ? [pid 5449] <... exit_group resumed>) = ? [pid 5451] +++ exited with 0 +++ [pid 5450] +++ exited with 0 +++ [pid 5449] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./127", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./127/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./127/binderfs") = 0 umount2("./127/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./127/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./127/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./127/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./127/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./127/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./127") = 0 mkdir("./128", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5452 ./strace-static-x86_64: Process 5452 attached [pid 5452] set_robust_list(0x555556e9d5e0, 24) = 0 [ 65.538946][ T5450] loop0: detected capacity change from 0 to 1024 [ 65.568892][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5452] chdir("./128") = 0 [pid 5452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5452] setpgid(0, 0) = 0 [pid 5452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5452] write(3, "1000", 4) = 4 [pid 5452] close(3) = 0 [pid 5452] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5452] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5452] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5452] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5453 attached , parent_tid=[5453], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5453 [pid 5453] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5453] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5452] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5453] <... futex resumed>) = 0 [pid 5453] memfd_create("syzkaller", 0 [pid 5452] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5453] <... memfd_create resumed>) = 3 [pid 5453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5453] munmap(0x7fce62e23000, 524288) = 0 [pid 5453] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5453] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5453] close(3) = 0 [pid 5453] mkdir("./bus", 0777) = 0 [pid 5453] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5453] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5453] chdir("./bus") = 0 [pid 5453] ioctl(4, LOOP_CLR_FD) = 0 [pid 5453] close(4) = 0 [pid 5453] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5452] <... futex resumed>) = 0 [pid 5452] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5452] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5453] <... futex resumed>) = 1 [pid 5453] unlink("./file2") = 0 [pid 5453] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5452] <... futex resumed>) = 0 [pid 5452] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5452] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5452] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5452] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5454], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5454 [pid 5453] <... futex resumed>) = 1 [pid 5452] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5453] mkdir(".", 0777 [pid 5452] <... futex resumed>) = 0 [pid 5453] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5452] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5453] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5454 attached [pid 5454] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5454] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5454] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5452] <... futex resumed>) = 0 [pid 5454] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5453] <... mount resumed>) = 0 [pid 5453] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5453] chdir(".") = 0 [pid 5453] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5452] exit_group(0 [pid 5454] <... futex resumed>) = ? [pid 5452] <... exit_group resumed>) = ? [pid 5454] +++ exited with 0 +++ [pid 5453] +++ exited with 0 +++ [pid 5452] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5452, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./128", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./128/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./128/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./128/binderfs") = 0 umount2("./128/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./128/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./128/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./128/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./128/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./128/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./128") = 0 mkdir("./129", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5455 ./strace-static-x86_64: Process 5455 attached [pid 5455] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5455] chdir("./129") = 0 [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5455] setpgid(0, 0) = 0 [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5455] write(3, "1000", 4) = 4 [pid 5455] close(3) = 0 [pid 5455] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5455] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5455] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5455] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5456], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5456 [pid 5455] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5455] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5456 attached [pid 5456] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5456] memfd_create("syzkaller", 0) = 3 [pid 5456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [ 65.639271][ T5453] loop0: detected capacity change from 0 to 1024 [ 65.673375][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5456] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5456] munmap(0x7fce62e23000, 524288) = 0 [pid 5456] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5456] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5456] close(3) = 0 [pid 5456] mkdir("./bus", 0777) = 0 [pid 5456] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5456] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5456] chdir("./bus") = 0 [pid 5456] ioctl(4, LOOP_CLR_FD) = 0 [pid 5456] close(4) = 0 [pid 5456] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5455] <... futex resumed>) = 0 [pid 5455] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5455] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5456] <... futex resumed>) = 1 [pid 5456] unlink("./file2") = 0 [pid 5456] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5455] <... futex resumed>) = 0 [pid 5455] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5455] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce62e82000 [pid 5455] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5455] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5457], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5457 ./strace-static-x86_64: Process 5457 attached [pid 5455] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5455] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5456] <... futex resumed>) = 1 [pid 5456] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5456] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5457] set_robust_list(0x7fce62ea29e0, 24) = 0 [pid 5457] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5457] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5455] <... futex resumed>) = 0 [pid 5457] <... futex resumed>) = 1 [pid 5457] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5456] <... mount resumed>) = 0 [pid 5456] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5456] chdir(".") = 0 [pid 5456] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5456] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5455] exit_group(0 [pid 5456] <... futex resumed>) = ? [pid 5455] <... exit_group resumed>) = ? [pid 5456] +++ exited with 0 +++ [pid 5457] <... futex resumed>) = ? [pid 5457] +++ exited with 0 +++ [pid 5455] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5455, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./129", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./129/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./129/binderfs") = 0 umount2("./129/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./129/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./129/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./129/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./129/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./129/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./129") = 0 mkdir("./130", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e9d5d0) = 5458 ./strace-static-x86_64: Process 5458 attached [pid 5458] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5458] chdir("./130") = 0 [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5458] setpgid(0, 0) = 0 [ 65.725288][ T5456] loop0: detected capacity change from 0 to 1024 [ 65.765219][ T2393] hfsplus: b-tree write err: -5, ino 4 [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5458] write(3, "1000", 4) = 4 [pid 5458] close(3) = 0 [pid 5458] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5458] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5458] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5458] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5459 attached [pid 5459] set_robust_list(0x7fce6b2439e0, 24 [pid 5458] <... clone resumed>, parent_tid=[5459], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5459 [pid 5459] <... set_robust_list resumed>) = 0 [pid 5458] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5458] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5459] memfd_create("syzkaller", 0) = 3 [pid 5459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5459] munmap(0x7fce62e23000, 524288) = 0 [pid 5459] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5459] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5459] close(3) = 0 [pid 5459] mkdir("./bus", 0777) = 0 [pid 5459] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5459] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5459] chdir("./bus") = 0 [pid 5459] ioctl(4, LOOP_CLR_FD) = 0 [pid 5459] close(4) = 0 [pid 5459] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5459] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5458] <... futex resumed>) = 0 [pid 5458] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5459] <... futex resumed>) = 0 [pid 5458] <... futex resumed>) = 1 [pid 5459] unlink("./file2" [pid 5458] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5459] <... unlink resumed>) = 0 [pid 5459] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5458] <... futex resumed>) = 0 [pid 5458] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5459] <... futex resumed>) = 1 [pid 5458] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5459] mkdir(".", 0777 [pid 5458] <... futex resumed>) = 0 [pid 5459] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5459] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6" [pid 5458] <... mmap resumed>) = 0x7fce62e82000 [pid 5458] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5458] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5460 attached , parent_tid=[5460], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5460 [pid 5460] set_robust_list(0x7fce62ea29e0, 24 [pid 5458] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5458] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5460] <... set_robust_list resumed>) = 0 [pid 5459] <... mount resumed>) = 0 [pid 5459] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5459] chdir(".") = 0 [pid 5459] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5459] futex(0x7fce6b31c788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5460] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = -1 EEXIST (File exists) [pid 5460] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5458] <... futex resumed>) = 0 [pid 5460] futex(0x7fce6b31c798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5458] exit_group(0 [pid 5460] <... futex resumed>) = ? [pid 5459] <... futex resumed>) = ? [pid 5458] <... exit_group resumed>) = ? [pid 5460] +++ exited with 0 +++ [pid 5459] +++ exited with 0 +++ [pid 5458] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./130", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555556e9e620 /* 4 entries */, 32768) = 104 umount2("./130/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./130/binderfs") = 0 umount2("./130/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./130/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./130/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./130/bus", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./130/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555556ea6660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555556ea6660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./130/bus") = 0 getdents64(3, 0x555556e9e620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./130") = 0 mkdir("./131", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5461 attached , child_tidptr=0x555556e9d5d0) = 5461 [ 65.821584][ T5459] loop0: detected capacity change from 0 to 1024 [ 65.843640][ T41] hfsplus: b-tree write err: -5, ino 4 [pid 5461] set_robust_list(0x555556e9d5e0, 24) = 0 [pid 5461] chdir("./131") = 0 [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5461] setpgid(0, 0) = 0 [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5461] write(3, "1000", 4) = 4 [pid 5461] close(3) = 0 [pid 5461] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5461] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fce6b223000 [pid 5461] mprotect(0x7fce6b224000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5461] clone(child_stack=0x7fce6b2433f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5462 attached , parent_tid=[5462], tls=0x7fce6b243700, child_tidptr=0x7fce6b2439d0) = 5462 [pid 5461] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5461] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5462] set_robust_list(0x7fce6b2439e0, 24) = 0 [pid 5462] memfd_create("syzkaller", 0) = 3 [pid 5462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce62e23000 [pid 5462] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5462] munmap(0x7fce62e23000, 524288) = 0 [pid 5462] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5462] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5462] close(3) = 0 [pid 5462] mkdir("./bus", 0777) = 0 [pid 5462] mount("/dev/loop0", "./bus", "hfsplus", MS_NOEXEC|MS_RELATIME, "") = 0 [pid 5462] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5462] chdir("./bus") = 0 [pid 5462] ioctl(4, LOOP_CLR_FD) = 0 [pid 5462] close(4) = 0 [pid 5462] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5461] <... futex resumed>) = 0 [pid 5461] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5461] futex(0x7fce6b31c78c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5462] <... futex resumed>) = 1 [pid 5462] unlink("./file2") = 0 [pid 5462] futex(0x7fce6b31c78c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5461] <... futex resumed>) = 0 [pid 5461] futex(0x7fce6b31c788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5462] mkdir(".", 0777 [pid 5461] futex(0x7fce6b31c79c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5462] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5461] <... mmap resumed>) = 0x7fce62e82000 [pid 5461] mprotect(0x7fce62e83000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5461] clone(child_stack=0x7fce62ea23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5463], tls=0x7fce62ea2700, child_tidptr=0x7fce62ea29d0) = 5463 [pid 5461] futex(0x7fce6b31c798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5461] futex(0x7fce6b31c79c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5462] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xee\xa7\x3c\x3c\xa0\x47\x34\x9a\xb6\x6d\x52\x9f\xb1\xe2\xbd\xc6\x18\x75\xc6\xcc\xeb\xea\x30\xba\x1b\x89\x77\xc6\x32\xdd\xcb\xe0\xed\x04\xf9\x86\xb6\x8e\xe6"./strace-static-x86_64: Process 5463 attached [pid 5463] set_robust_list(0x7fce62ea29e0, 24) = 0 [ 65.924798][ T5462] loop0: detected capacity change from 0 to 1024 [ 65.961505][ T11] hfsplus: b-tree write err: -5, ino 4 [ 65.967443][ T11] ------------[ cut here ]------------ [pid 5463] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NOCTTY|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|FASYNC, 000 [pid 5461] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 65.973580][ T11] WARNING: CPU: 1 PID: 11 at fs/hfsplus/inode.c:616 hfsplus_cat_write_inode+0xb13/0xfe0 [ 65.984192][ T11] Modules linked in: [ 65.988340][ T11] CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.2.0-rc1-syzkaller-00068-gbff687b3dad6 #0 [ 65.998897][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 66.009020][ T11] Workqueue: writeback wb_workfn (flush-7:0) [ 66.015121][ T11] RIP: 0010:hfsplus_cat_write_inode+0xb13/0xfe0 [ 66.021452][ T11] Code: 00 0f 85 df 04 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c9 d0 2c ff 0f 0b e9 d1 f7 ff ff e8 bd d0 2c ff <0f> 0b e9 7f fa ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 13 f6 ff [ 66.041117][ T11] RSP: 0018:ffffc90000107120 EFLAGS: 00010293 [ 66.047197][ T11] RAX: ffffffff825f0ab3 RBX: 0000000000000058 RCX: ffff88813fee3a80 [ 66.055224][ T11] RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000000000f8 [ 66.063535][ T11] RBP: ffffc900001074d0 R08: ffffffff825f0528 R09: ffffed100f7bdcd1 [ 66.071600][ T11] R10: ffffed100f7bdcd1 R11: 1ffff1100f7bdcd0 R12: dffffc0000000000 [ 66.079630][ T11] R13: ffffc900001071e0 R14: ffffc90000107180 R15: ffff88807bdee680 [ 66.087613][ T11] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 66.096597][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.103228][ T11] CR2: 00007fce62ea2718 CR3: 00000000226d1000 CR4: 00000000003506f0 [ 66.111256][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [pid 5461] exit_group(0) = ? [ 66.119288][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.127279][ T11] Call Trace: [ 66.130608][ T11] [ 66.133571][ T11] ? hfsplus_get_perms+0x810/0x810 [ 66.138767][ T11] ? __mutex_lock_common+0x45f/0x26e0 [ 66.144182][ T11] ? mpage_writepages+0x15c/0x1c0 [ 66.149545][ T11] ? __mutex_unlock_slowpath+0x222/0x770 [ 66.155206][ T11] ? hfsplus_ext_write_extent+0x87/0x1e0 [ 66.160929][ T11] ? mutex_unlock+0x10/0x10 [ 66.165453][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.171144][ T11] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.177144][ T11] ? hfsplus_ext_write_extent+0x177/0x1e0 [ 66.182928][ T11] ? hfsplus_ext_cmp_key+0x2e0/0x2e0 [ 66.188230][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.193899][ T11] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.199940][ T11] ? hfsplus_write_inode+0x185/0x5c0 [ 66.205231][ T11] __writeback_single_inode+0x4d6/0x670 [ 66.210828][ T11] writeback_sb_inodes+0x812/0x1050 [ 66.216060][ T11] ? queue_io+0x400/0x400 [ 66.220484][ T11] ? queue_io+0x382/0x400 [ 66.224833][ T11] ? trace_writeback_queue_io+0xe8/0x2d0 [ 66.230506][ T11] wb_writeback+0x41f/0x7b0 [ 66.235055][ T11] ? trace_writeback_exec+0x2c0/0x2c0 [ 66.240507][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.246171][ T11] ? do_raw_spin_unlock+0x134/0x8a0 [ 66.251436][ T11] wb_workfn+0x3cb/0xef0 [ 66.255704][ T11] ? inode_wait_for_writeback+0x2c0/0x2c0 [ 66.261479][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.267126][ T11] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.273163][ T11] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 66.279127][ T11] ? do_raw_spin_unlock+0x134/0x8a0 [ 66.284441][ T11] process_one_work+0x877/0xdb0 [ 66.289388][ T11] ? worker_detach_from_pool+0x260/0x260 [ 66.295034][ T11] ? _raw_spin_lock_irq+0xba/0xf0 [ 66.300111][ T11] ? _raw_spin_lock_irqsave+0x100/0x100 [ 66.305688][ T11] worker_thread+0xb14/0x1330 [ 66.310449][ T11] kthread+0x266/0x300 [ 66.314523][ T11] ? rcu_lock_release+0x20/0x20 [ 66.319424][ T11] ? kthread_blkcg+0xd0/0xd0 [ 66.324036][ T11] ret_from_fork+0x1f/0x30 [ 66.328475][ T11] [ 66.331527][ T11] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 66.338806][ T11] CPU: 0 PID: 11 Comm: kworker/u4:1 Not tainted 6.2.0-rc1-syzkaller-00068-gbff687b3dad6 #0 [ 66.348778][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 66.358832][ T11] Workqueue: writeback wb_workfn (flush-7:0) [ 66.364826][ T11] Call Trace: [ 66.368100][ T11] [ 66.371029][ T11] dump_stack_lvl+0x1b1/0x290 [ 66.375714][ T11] ? nf_tcp_handle_invalid+0x630/0x630 [ 66.381176][ T11] ? panic+0x710/0x710 [ 66.385246][ T11] ? vscnprintf+0x59/0x80 [ 66.389572][ T11] ? hfsplus_cat_write_inode+0xa60/0xfe0 [ 66.395206][ T11] panic+0x2d6/0x710 [ 66.399099][ T11] ? __warn+0x16d/0x2d0 [ 66.403254][ T11] ? memcpy_page_flushcache+0x100/0x100 [ 66.408802][ T11] ? ret_from_fork+0x1f/0x30 [ 66.413392][ T11] ? hfsplus_cat_write_inode+0xb13/0xfe0 [ 66.419023][ T11] __warn+0x284/0x2d0 [ 66.423003][ T11] ? hfsplus_cat_write_inode+0xb13/0xfe0 [ 66.428636][ T11] report_bug+0x1b3/0x2d0 [ 66.432973][ T11] handle_bug+0x3d/0x70 [ 66.437128][ T11] exc_invalid_op+0x16/0x40 [ 66.441631][ T11] asm_exc_invalid_op+0x16/0x20 [ 66.446487][ T11] RIP: 0010:hfsplus_cat_write_inode+0xb13/0xfe0 [ 66.452725][ T11] Code: 00 0f 85 df 04 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c9 d0 2c ff 0f 0b e9 d1 f7 ff ff e8 bd d0 2c ff <0f> 0b e9 7f fa ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 13 f6 ff [ 66.472330][ T11] RSP: 0018:ffffc90000107120 EFLAGS: 00010293 [ 66.478391][ T11] RAX: ffffffff825f0ab3 RBX: 0000000000000058 RCX: ffff88813fee3a80 [ 66.486355][ T11] RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000000000f8 [ 66.494316][ T11] RBP: ffffc900001074d0 R08: ffffffff825f0528 R09: ffffed100f7bdcd1 [ 66.502285][ T11] R10: ffffed100f7bdcd1 R11: 1ffff1100f7bdcd0 R12: dffffc0000000000 [ 66.510252][ T11] R13: ffffc900001071e0 R14: ffffc90000107180 R15: ffff88807bdee680 [ 66.518224][ T11] ? hfsplus_cat_write_inode+0x588/0xfe0 [ 66.523856][ T11] ? hfsplus_cat_write_inode+0xb13/0xfe0 [ 66.529502][ T11] ? hfsplus_get_perms+0x810/0x810 [ 66.534624][ T11] ? __mutex_lock_common+0x45f/0x26e0 [ 66.540000][ T11] ? mpage_writepages+0x15c/0x1c0 [ 66.545029][ T11] ? __mutex_unlock_slowpath+0x222/0x770 [ 66.550655][ T11] ? hfsplus_ext_write_extent+0x87/0x1e0 [ 66.556291][ T11] ? mutex_unlock+0x10/0x10 [ 66.560787][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.566442][ T11] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.572458][ T11] ? hfsplus_ext_write_extent+0x177/0x1e0 [ 66.578207][ T11] ? hfsplus_ext_cmp_key+0x2e0/0x2e0 [ 66.583503][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.589135][ T11] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.595120][ T11] ? hfsplus_write_inode+0x185/0x5c0 [ 66.600407][ T11] __writeback_single_inode+0x4d6/0x670 [ 66.605958][ T11] writeback_sb_inodes+0x812/0x1050 [ 66.611189][ T11] ? queue_io+0x400/0x400 [ 66.615539][ T11] ? queue_io+0x382/0x400 [ 66.619870][ T11] ? trace_writeback_queue_io+0xe8/0x2d0 [ 66.625500][ T11] wb_writeback+0x41f/0x7b0 [ 66.630017][ T11] ? trace_writeback_exec+0x2c0/0x2c0 [ 66.635391][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.641024][ T11] ? do_raw_spin_unlock+0x134/0x8a0 [ 66.646227][ T11] wb_workfn+0x3cb/0xef0 [ 66.650484][ T11] ? inode_wait_for_writeback+0x2c0/0x2c0 [ 66.656215][ T11] ? rcu_read_lock_sched_held+0x87/0x110 [ 66.661843][ T11] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 66.667816][ T11] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 66.673718][ T11] ? do_raw_spin_unlock+0x134/0x8a0 [ 66.678922][ T11] process_one_work+0x877/0xdb0 [ 66.683789][ T11] ? worker_detach_from_pool+0x260/0x260 [ 66.689423][ T11] ? _raw_spin_lock_irq+0xba/0xf0 [ 66.694449][ T11] ? _raw_spin_lock_irqsave+0x100/0x100 [ 66.700004][ T11] worker_thread+0xb14/0x1330 [ 66.704705][ T11] kthread+0x266/0x300 [ 66.708769][ T11] ? rcu_lock_release+0x20/0x20 [ 66.713628][ T11] ? kthread_blkcg+0xd0/0xd0 [ 66.718215][ T11] ret_from_fork+0x1f/0x30 [ 66.722643][ T11] [ 66.725813][ T11] Kernel Offset: disabled [ 66.730206][ T11] Rebooting in 86400 seconds..