./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2349475404 <...> Warning: Permanently added '10.128.1.82' (ED25519) to the list of known hosts. execve("./syz-executor2349475404", ["./syz-executor2349475404"], 0x7fff34e869d0 /* 10 vars */) = 0 brk(NULL) = 0x555555ce3000 brk(0x555555ce3d00) = 0x555555ce3d00 arch_prctl(ARCH_SET_FS, 0x555555ce3380) = 0 set_tid_address(0x555555ce3650) = 5064 set_robust_list(0x555555ce3660, 24) = 0 rseq(0x555555ce3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2349475404", 4096) = 28 getrandom("\xb5\xf7\xae\xf1\x46\xf1\xdf\x7e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555ce3d00 brk(0x555555d04d00) = 0x555555d04d00 brk(0x555555d05000) = 0x555555d05000 mprotect(0x7f5136b0e000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ce3650) = 5065 ./strace-static-x86_64: Process 5065 attached [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5065] set_robust_list(0x555555ce3660, 24) = 0 [pid 5065] mkdir("./syzkaller.SvVpwu", 0700./strace-static-x86_64: Process 5066 attached [pid 5064] <... clone resumed>, child_tidptr=0x555555ce3650) = 5066 [pid 5066] set_robust_list(0x555555ce3660, 24 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5066] <... set_robust_list resumed>) = 0 [pid 5065] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5067 attached [pid 5065] chmod("./syzkaller.SvVpwu", 0777 [pid 5066] mkdir("./syzkaller.DzMT2l", 0700 [pid 5064] <... clone resumed>, child_tidptr=0x555555ce3650) = 5067 [pid 5067] set_robust_list(0x555555ce3660, 24 [pid 5065] <... chmod resumed>) = 0 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... set_robust_list resumed>) = 0 [pid 5067] mkdir("./syzkaller.sLPcal", 0700 [pid 5065] chdir("./syzkaller.SvVpwu") = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5065] mkdir("./0", 0777 [pid 5066] chmod("./syzkaller.DzMT2l", 0777) = 0 [pid 5065] <... mkdir resumed>) = 0 [pid 5066] chdir("./syzkaller.DzMT2l" [pid 5067] <... mkdir resumed>) = 0 [pid 5066] <... chdir resumed>) = 0 [ 106.001108][ T27] audit: type=1400 audit(1702488802.370:86): avc: denied { execmem } for pid=5064 comm="syz-executor234" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5068 attached [pid 5064] <... clone resumed>, child_tidptr=0x555555ce3650) = 5068 [pid 5067] chmod("./syzkaller.sLPcal", 0777 [pid 5066] mkdir("./0", 0777 [pid 5065] <... openat resumed>) = 3 [pid 5066] <... mkdir resumed>) = 0 [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] set_robust_list(0x555555ce3660, 24 [pid 5067] <... chmod resumed>) = 0 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5068] <... set_robust_list resumed>) = 0 [pid 5067] chdir("./syzkaller.sLPcal" [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] mkdir("./syzkaller.LKtUsG", 0700 [pid 5067] <... chdir resumed>) = 0 [pid 5067] mkdir("./0", 0777 [pid 5066] <... openat resumed>) = 3 [pid 5067] <... mkdir resumed>) = 0 [pid 5065] close(3 [pid 5068] <... mkdir resumed>) = 0 [pid 5065] <... close resumed>) = 0 [pid 5066] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 106.067464][ T27] audit: type=1400 audit(1702488802.430:87): avc: denied { read write } for pid=5065 comm="syz-executor234" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 106.092151][ T27] audit: type=1400 audit(1702488802.430:88): avc: denied { open } for pid=5065 comm="syz-executor234" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5068] chmod("./syzkaller.LKtUsG", 0777 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] close(3 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5069 attached [pid 5068] <... chmod resumed>) = 0 [pid 5067] <... openat resumed>) = 3 [pid 5066] <... close resumed>) = 0 [pid 5064] <... clone resumed>, child_tidptr=0x555555ce3650) = 5069 [pid 5068] chdir("./syzkaller.LKtUsG" [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5064] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... chdir resumed>) = 0 [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] mkdir("./0", 0777 [pid 5067] close(3 [pid 5066] <... clone resumed>, child_tidptr=0x555555ce3650) = 5071 [pid 5068] <... mkdir resumed>) = 0 [pid 5067] <... close resumed>) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5064] <... clone resumed>, child_tidptr=0x555555ce3650) = 5072 [pid 5065] <... clone resumed>, child_tidptr=0x555555ce3650) = 5070 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5067] <... clone resumed>, child_tidptr=0x555555ce3650) = 5073 ./strace-static-x86_64: Process 5071 attached [pid 5069] set_robust_list(0x555555ce3660, 24 [pid 5071] set_robust_list(0x555555ce3660, 24./strace-static-x86_64: Process 5073 attached ./strace-static-x86_64: Process 5070 attached ./strace-static-x86_64: Process 5072 attached ) = 0 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5073] set_robust_list(0x555555ce3660, 24 [pid 5069] mkdir("./syzkaller.yOe20c", 0700 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] <... set_robust_list resumed>) = 0 [pid 5070] set_robust_list(0x555555ce3660, 24 [pid 5072] set_robust_list(0x555555ce3660, 24 [pid 5071] chdir("./0" [pid 5073] chdir("./0" [pid 5070] <... set_robust_list resumed>) = 0 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5071] <... chdir resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... mkdir resumed>) = 0 [pid 5073] <... chdir resumed>) = 0 [pid 5070] chdir("./0" [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] chmod("./syzkaller.yOe20c", 0777 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... chdir resumed>) = 0 [pid 5072] mkdir("./syzkaller.6TJXHG", 0700 [pid 5071] <... prctl resumed>) = 0 [pid 5068] close(3 [pid 5071] setpgid(0, 0 [pid 5069] <... chmod resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... mkdir resumed>) = 0 [pid 5073] <... prctl resumed>) = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] chmod("./syzkaller.6TJXHG", 0777 [pid 5071] <... setpgid resumed>) = 0 [pid 5069] chdir("./syzkaller.yOe20c" [pid 5073] setpgid(0, 0 [pid 5070] <... prctl resumed>) = 0 [pid 5072] <... chmod resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... chdir resumed>) = 0 [pid 5073] <... setpgid resumed>) = 0 [pid 5070] setpgid(0, 0 [pid 5072] chdir("./syzkaller.6TJXHG" [pid 5070] <... setpgid resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5069] mkdir("./0", 0777 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5074 attached [pid 5073] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5072] <... chdir resumed>) = 0 [pid 5071] write(3, "1000", 4 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] set_robust_list(0x555555ce3660, 24 [pid 5073] write(3, "1000", 4 [pid 5070] write(3, "1000", 4 [pid 5072] mkdir("./0", 0777 [pid 5068] <... clone resumed>, child_tidptr=0x555555ce3650) = 5074 [pid 5074] <... set_robust_list resumed>) = 0 [pid 5073] <... write resumed>) = 4 [pid 5070] <... write resumed>) = 4 [pid 5071] <... write resumed>) = 4 [pid 5069] <... openat resumed>) = 3 [pid 5074] chdir("./0" [pid 5073] close(3 [pid 5070] close(3 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] close(3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5074] <... chdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] symlink("/dev/binderfs", "./binderfs" [pid 5070] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... prctl resumed>) = 0 [pid 5070] <... symlink resumed>) = 0 [pid 5071] symlink("/dev/binderfs", "./binderfs" [pid 5069] close(3 [pid 5074] setpgid(0, 0 [pid 5073] <... symlink resumed>) = 0 [pid 5074] <... setpgid resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5070] memfd_create("syzkaller", 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... memfd_create resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 5071] <... symlink resumed>) = 0 [pid 5073] memfd_create("syzkaller", 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... openat resumed>) = 3 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... mmap resumed>) = 0x7f512e65a000 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3) = 0 [pid 5072] close(3 [pid 5074] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... close resumed>) = 0 [pid 5073] <... memfd_create resumed>) = 3 [pid 5074] <... symlink resumed>) = 0 [ 106.117468][ T27] audit: type=1400 audit(1702488802.450:89): avc: denied { ioctl } for pid=5065 comm="syz-executor234" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5074] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5075 attached ) = 3 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... clone resumed>, child_tidptr=0x555555ce3650) = 5075 [pid 5075] set_robust_list(0x555555ce3660, 24 [pid 5071] memfd_create("syzkaller", 0 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f512e65a000 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5073] <... mmap resumed>) = 0x7f512e65a000 [pid 5071] <... memfd_create resumed>) = 3 [pid 5072] <... clone resumed>, child_tidptr=0x555555ce3650) = 5076 ./strace-static-x86_64: Process 5076 attached [pid 5075] chdir("./0" [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] set_robust_list(0x555555ce3660, 24) = 0 [pid 5076] chdir("./0") = 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] <... mmap resumed>) = 0x7f512e65a000 [pid 5075] <... chdir resumed>) = 0 [pid 5076] write(3, "1000", 4) = 4 [pid 5076] close(3) = 0 [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] symlink("/dev/binderfs", "./binderfs" [pid 5075] setpgid(0, 0) = 0 [pid 5076] <... symlink resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "1000", 4) = 4 [pid 5076] memfd_create("syzkaller", 0 [pid 5075] close(3 [pid 5076] <... memfd_create resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f512e65a000 [pid 5075] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5075] memfd_create("syzkaller", 0 [pid 5070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... memfd_create resumed>) = 3 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... mmap resumed>) = 0x7f512e65a000 [pid 5071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [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"..., 4194304 [pid 5070] <... write resumed>) = 4194304 [pid 5070] munmap(0x7f512e65a000, 138412032 [pid 5073] <... write resumed>) = 4194304 [pid 5070] <... munmap resumed>) = 0 [pid 5071] <... write resumed>) = 4194304 [pid 5073] munmap(0x7f512e65a000, 138412032) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5071] munmap(0x7f512e65a000, 138412032 [pid 5073] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... munmap resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... openat resumed>) = 4 [pid 5071] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... ioctl resumed>) = 0 [pid 5071] <... ioctl resumed>) = 0 [pid 5071] close(3) = 0 [pid 5071] mkdir("./file0", 0777 [pid 5074] <... write resumed>) = 4194304 [pid 5073] close(3 [pid 5070] <... ioctl resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5074] munmap(0x7f512e65a000, 138412032 [pid 5073] <... close resumed>) = 0 [pid 5070] close(3 [pid 5071] mount("/dev/loop1", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [ 106.630408][ T5073] loop2: detected capacity change from 0 to 8192 [ 106.639439][ T5071] loop1: detected capacity change from 0 to 8192 [ 106.648057][ T5070] loop0: detected capacity change from 0 to 8192 [pid 5073] mkdir("./file0", 0777 [pid 5074] <... munmap resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5076] <... write resumed>) = 4194304 [pid 5076] munmap(0x7f512e65a000, 138412032) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] mkdir("./file0", 0777 [pid 5076] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5075] <... write resumed>) = 4194304 [pid 5073] mount("/dev/loop2", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5074] <... openat resumed>) = 4 [pid 5076] <... openat resumed>) = 4 [ 106.676628][ T27] audit: type=1400 audit(1702488803.040:90): avc: denied { mounton } for pid=5071 comm="syz-executor234" path="/root/syzkaller.DzMT2l/0/file0" dev="sda1" ino=1945 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 106.710789][ T5071] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5076] ioctl(4, LOOP_SET_FD, 3 [pid 5074] ioctl(4, LOOP_SET_FD, 3 [pid 5075] munmap(0x7f512e65a000, 138412032 [pid 5070] <... mkdir resumed>) = 0 [pid 5075] <... munmap resumed>) = 0 [pid 5070] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5075] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 106.714605][ T5076] loop5: detected capacity change from 0 to 8192 [ 106.731953][ T5074] loop3: detected capacity change from 0 to 8192 [ 106.735565][ T5071] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 106.760969][ T5071] REISERFS (device loop1): using ordered data mode [ 106.768073][ T5071] reiserfs: using flush barriers [pid 5075] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... ioctl resumed>) = 0 [pid 5074] <... ioctl resumed>) = 0 [pid 5076] close(3 [pid 5074] close(3 [pid 5076] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5074] mkdir("./file0", 0777) = 0 [ 106.776097][ T5070] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.791249][ T5073] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.806768][ T5075] loop4: detected capacity change from 0 to 8192 [pid 5076] mkdir("./file0", 0777) = 0 [pid 5075] <... ioctl resumed>) = 0 [pid 5075] close(3) = 0 [pid 5075] mkdir("./file0", 0777) = 0 [pid 5076] mount("/dev/loop5", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [ 106.827313][ T5071] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 106.837125][ T5073] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 106.844940][ T5071] REISERFS (device loop1): checking transaction log (loop1) [pid 5074] mount("/dev/loop3", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [ 106.879795][ T5074] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.881298][ T5070] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 106.903028][ T5076] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.904137][ T5070] REISERFS (device loop0): using ordered data mode [ 106.923853][ T5070] reiserfs: using flush barriers [ 106.932231][ T5073] REISERFS (device loop2): using ordered data mode [ 106.938664][ T5075] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.938959][ T5070] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 106.969114][ T5073] reiserfs: using flush barriers [ 106.978047][ T5070] REISERFS (device loop0): checking transaction log (loop0) [ 106.985557][ T5073] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 106.998601][ T5071] REISERFS (device loop1): Using r5 hash to sort names [ 107.009169][ T5073] REISERFS (device loop2): checking transaction log (loop2) [ 107.009440][ T5074] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 107.026168][ T5076] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 107.036445][ T5073] REISERFS (device loop2): Using r5 hash to sort names [ 107.038549][ T5075] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [pid 5075] mount("/dev/loop4", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5073] <... mount resumed>) = 0 [ 107.074670][ T5076] REISERFS (device loop5): using ordered data mode [ 107.084242][ T5070] REISERFS (device loop0): Using r5 hash to sort names [ 107.094141][ T27] audit: type=1400 audit(1702488803.460:91): avc: denied { mount } for pid=5071 comm="syz-executor234" name="/" dev="loop1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nfs_t tclass=filesystem permissive=1 [ 107.118650][ T5074] REISERFS (device loop3): using ordered data mode [pid 5073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5073] chdir("./file0" [pid 5071] <... mount resumed>) = 0 [pid 5070] <... mount resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... chdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... openat resumed>) = 3 [pid 5071] chdir("./file0" [pid 5073] ioctl(4, LOOP_CLR_FD [pid 5070] <... openat resumed>) = 3 [pid 5071] <... chdir resumed>) = 0 [pid 5073] <... ioctl resumed>) = 0 [pid 5073] close(4) = 0 [pid 5073] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5073] 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, "" [pid 5071] ioctl(4, LOOP_CLR_FD) = 0 [ 107.119720][ T5076] reiserfs: using flush barriers [ 107.125193][ T5074] reiserfs: using flush barriers [ 107.136517][ T5075] REISERFS (device loop4): using ordered data mode [ 107.151744][ T5075] reiserfs: using flush barriers [ 107.163173][ T5073] reiserfs: enabling write barrier flush mode [pid 5070] chdir("./file0" [ 107.172769][ T5074] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 107.198759][ T5075] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5071] close(4) = 0 [pid 5071] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5070] <... chdir resumed>) = 0 [pid 5070] ioctl(4, LOOP_CLR_FD [pid 5071] 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, "" [pid 5070] <... ioctl resumed>) = 0 [pid 5070] close(4) = 0 [ 107.214688][ T27] audit: type=1400 audit(1702488803.530:92): avc: denied { remount } for pid=5073 comm="syz-executor234" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nfs_t tclass=filesystem permissive=1 [ 107.215675][ T5076] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 107.258685][ T5071] reiserfs: enabling write barrier flush mode [ 107.279529][ T5074] REISERFS (device loop3): checking transaction log (loop3) [ 107.297594][ T5074] REISERFS (device loop3): Using r5 hash to sort names [ 107.299489][ T5075] REISERFS (device loop4): checking transaction log (loop4) [ 107.307563][ T5073] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] mkdir(".", 0777 [pid 5074] <... mount resumed>) = 0 [pid 5070] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5070] 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, "" [pid 5071] <... mount resumed>) = 0 [pid 5071] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5074] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... openat resumed>) = 4 [pid 5074] <... openat resumed>) = 3 [pid 5073] <... mount resumed>) = 0 [pid 5074] chdir("./file0" [pid 5073] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5074] <... chdir resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5074] ioctl(4, LOOP_CLR_FD) = 0 [pid 5074] close(4) = 0 [pid 5074] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5074] 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, "" [pid 5073] chdir("." [pid 5075] <... mount resumed>) = 0 [pid 5073] <... chdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 107.323662][ T5071] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 107.330653][ T5075] REISERFS (device loop4): Using r5 hash to sort names [ 107.341163][ T5070] reiserfs: enabling write barrier flush mode [ 107.350927][ T5076] REISERFS (device loop5): checking transaction log (loop5) [ 107.363392][ T5074] reiserfs: enabling write barrier flush mode [pid 5073] creat("./bus", 000 [pid 5075] <... openat resumed>) = 3 [pid 5073] <... creat resumed>) = 5 [pid 5073] ioctl(5, FS_IOC_GETVERSION [pid 5075] chdir("./file0" [pid 5073] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5075] <... chdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5075] ioctl(4, LOOP_CLR_FD) = 0 [pid 5075] close(4 [pid 5073] <... openat resumed>) = 6 [pid 5075] <... close resumed>) = 0 [pid 5073] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0 [pid 5075] mkdir(".", 0777 [pid 5073] <... mmap resumed>) = 0x20000000 [ 107.375163][ T5076] REISERFS (device loop5): Using r5 hash to sort names [ 107.396757][ T5074] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] chdir("." [pid 5076] <... mount resumed>) = 0 [pid 5075] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5073] exit_group(0 [pid 5071] <... chdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [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, "" [pid 5073] <... exit_group resumed>) = ? [pid 5071] creat("./bus", 000) = 5 [pid 5071] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5071] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6 [pid 5073] +++ exited with 0 +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5067] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5067] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5071] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0 [pid 5067] getdents64(3, [pid 5071] <... mmap resumed>) = 0x20000000 [pid 5067] <... getdents64 resumed>0x555555ce46f0 /* 4 entries */, 32768) = 112 [pid 5067] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5067] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] unlink("./0/binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5067] <... unlink resumed>) = 0 [ 107.422313][ T5070] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 107.444106][ T5075] reiserfs: enabling write barrier flush mode [pid 5076] chdir("./file0" [pid 5067] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... chdir resumed>) = 0 [pid 5074] <... mount resumed>) = 0 [pid 5071] exit_group(0 [pid 5074] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5071] <... exit_group resumed>) = ? [pid 5074] <... openat resumed>) = 4 [pid 5071] +++ exited with 0 +++ [pid 5074] chdir("." [pid 5070] <... mount resumed>) = 0 [pid 5074] <... chdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5074] creat("./bus", 000 [pid 5070] <... openat resumed>) = 4 [pid 5074] <... creat resumed>) = 5 [pid 5070] chdir("." [pid 5074] ioctl(5, FS_IOC_GETVERSION [pid 5070] <... chdir resumed>) = 0 [pid 5074] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5070] creat("./bus", 000 [pid 5074] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5070] <... creat resumed>) = 5 [pid 5074] <... openat resumed>) = 6 [pid 5070] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5070] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6 [pid 5076] ioctl(4, LOOP_CLR_FD [pid 5074] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0 [pid 5070] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0) = 0x20000000 [pid 5076] <... ioctl resumed>) = 0 [pid 5074] <... mmap resumed>) = 0x20000000 [pid 5070] exit_group(0 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5076] close(4 [pid 5070] <... exit_group resumed>) = ? [pid 5076] <... close resumed>) = 0 [pid 5074] exit_group(0 [pid 5070] +++ exited with 0 +++ [pid 5066] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5066] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir(".", 0777 [pid 5074] <... exit_group resumed>) = ? [pid 5076] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5074] +++ exited with 0 +++ [pid 5066] <... openat resumed>) = 3 [pid 5065] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] 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, "" [pid 5075] <... mount resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5066] newfstatat(3, "", [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5066] getdents64(3, [pid 5065] newfstatat(3, "", [pid 5068] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] <... getdents64 resumed>0x555555ce46f0 /* 4 entries */, 32768) = 112 [pid 5068] <... openat resumed>) = 3 [pid 5066] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5068] newfstatat(3, "", [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5066] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5065] getdents64(3, [pid 5068] getdents64(3, [pid 5066] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] unlink("./0/binderfs" [pid 5065] <... getdents64 resumed>0x555555ce46f0 /* 4 entries */, 32768) = 112 [pid 5068] <... getdents64 resumed>0x555555ce46f0 /* 4 entries */, 32768) = 112 [pid 5075] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5068] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... unlink resumed>) = 0 [pid 5065] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 4 [pid 5068] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5068] unlink("./0/binderfs" [pid 5065] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] unlink("./0/binderfs") = 0 [pid 5068] <... unlink resumed>) = 0 [ 107.467833][ T27] audit: type=1400 audit(1702488803.830:93): avc: denied { unmount } for pid=5067 comm="syz-executor234" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nfs_t tclass=filesystem permissive=1 [ 107.503151][ T5075] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 107.520883][ T5076] reiserfs: enabling write barrier flush mode [pid 5065] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] chdir("." [pid 5065] <... umount2 resumed>) = 0 [pid 5065] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... chdir resumed>) = 0 [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] creat("./bus", 000 [pid 5076] <... mount resumed>) = 0 [pid 5075] <... creat resumed>) = 5 [pid 5065] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5076] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5065] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] ioctl(5, FS_IOC_GETVERSION [pid 5065] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] chdir("." [pid 5075] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5065] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... chdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5066] <... umount2 resumed>) = 0 [pid 5065] <... openat resumed>) = 4 [ 107.566074][ T5076] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] creat("./bus", 000) = 5 [pid 5066] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] newfstatat(4, "", [pid 5076] ioctl(5, FS_IOC_GETVERSION [pid 5075] <... openat resumed>) = 6 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5076] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5075] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0 [pid 5066] newfstatat(AT_FDCWD, "./0/file0", [pid 5065] getdents64(4, [pid 5076] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5065] <... getdents64 resumed>0x555555cec730 /* 2 entries */, 32768) = 48 [pid 5076] <... openat resumed>) = 6 [pid 5076] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0 [pid 5066] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mmap resumed>) = 0x20000000 [pid 5066] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] exit_group(0 [pid 5066] newfstatat(4, "", [pid 5076] <... exit_group resumed>) = ? [pid 5066] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5076] +++ exited with 0 +++ [pid 5066] getdents64(4, 0x555555cec730 /* 2 entries */, 32768) = 48 [pid 5066] getdents64(4, 0x555555cec730 /* 0 entries */, 32768) = 0 [pid 5066] close(4) = 0 [pid 5066] rmdir("./0/file0") = 0 [pid 5066] getdents64(3, 0x555555ce46f0 /* 0 entries */, 32768) = 0 [pid 5066] close(3) = 0 [pid 5066] rmdir("./0") = 0 [ 107.639110][ T5075] [ 107.641621][ T5075] ====================================================== [ 107.648759][ T5075] WARNING: possible circular locking dependency detected [ 107.655818][ T5075] 6.7.0-rc5-syzkaller-00042-g88035e5694a8 #0 Not tainted [ 107.662975][ T5075] ------------------------------------------------------ [ 107.670030][ T5075] syz-executor234/5075 is trying to acquire lock: [ 107.676660][ T5075] ffff8880203c3090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x79/0x100 [ 107.686866][ T5075] [ 107.686866][ T5075] but task is already holding lock: [ 107.694262][ T5075] ffff88801e8d16a0 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x15d/0x3c0 [ 107.703313][ T5075] [ 107.703313][ T5075] which lock already depends on the new lock. [ 107.703313][ T5075] [ 107.713773][ T5075] [ 107.713773][ T5075] the existing dependency chain (in reverse order) is: [ 107.722824][ T5075] [ 107.722824][ T5075] -> #1 (&mm->mmap_lock){++++}-{3:3}: [ 107.730446][ T5075] __might_fault+0x11f/0x1a0 [ 107.735625][ T5075] reiserfs_ioctl+0x1c4/0x2e0 [ 107.740875][ T5075] __x64_sys_ioctl+0x18f/0x210 [ 107.746217][ T5075] do_syscall_64+0x40/0x110 [ 107.751312][ T5075] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 107.757790][ T5075] [ 107.757790][ T5075] -> #0 (&sbi->lock){+.+.}-{3:3}: [ 107.765039][ T5075] __lock_acquire+0x2433/0x3b20 [ 107.770449][ T5075] lock_acquire+0x1ae/0x520 [ 107.775509][ T5075] __mutex_lock+0x175/0x9d0 [ 107.780583][ T5075] reiserfs_write_lock+0x79/0x100 [ 107.786182][ T5075] reiserfs_dirty_inode+0xe6/0x270 [ 107.791862][ T5075] __mark_inode_dirty+0x1e0/0xd60 [ 107.797534][ T5075] generic_update_time+0xcf/0xf0 [ 107.803143][ T5075] touch_atime+0x4eb/0x5d0 [ 107.808112][ T5075] generic_file_mmap+0x120/0x160 [ 107.813616][ T5075] mmap_region+0x5e3/0x2830 [ 107.818676][ T5075] do_mmap+0x893/0xef0 [ 107.823307][ T5075] vm_mmap_pgoff+0x1a8/0x3c0 [ 107.828545][ T5075] ksys_mmap_pgoff+0x422/0x5b0 [ 107.833873][ T5075] __x64_sys_mmap+0x125/0x190 [ 107.839107][ T5075] do_syscall_64+0x40/0x110 [ 107.844190][ T5075] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 107.850694][ T5075] [ 107.850694][ T5075] other info that might help us debug this: [ 107.850694][ T5075] [ 107.860947][ T5075] Possible unsafe locking scenario: [ 107.860947][ T5075] [ 107.868410][ T5075] CPU0 CPU1 [ 107.873803][ T5075] ---- ---- [ 107.879281][ T5075] lock(&mm->mmap_lock); [ 107.883739][ T5075] lock(&sbi->lock); [ 107.890270][ T5075] lock(&mm->mmap_lock); [ 107.897157][ T5075] lock(&sbi->lock); [ 107.901339][ T5075] [ 107.901339][ T5075] *** DEADLOCK *** [ 107.901339][ T5075] [ 107.909492][ T5075] 2 locks held by syz-executor234/5075: [ 107.915059][ T5075] #0: ffff88801e8d16a0 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x15d/0x3c0 [ 107.924496][ T5075] #1: ffff888072498418 (sb_writers#10){.+.+}-{0:0}, at: generic_file_mmap+0x120/0x160 [ 107.934236][ T5075] [ 107.934236][ T5075] stack backtrace: [ 107.940134][ T5075] CPU: 0 PID: 5075 Comm: syz-executor234 Not tainted 6.7.0-rc5-syzkaller-00042-g88035e5694a8 #0 [ 107.950564][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 107.960632][ T5075] Call Trace: [ 107.963932][ T5075] [ 107.966918][ T5075] dump_stack_lvl+0xd9/0x1b0 [ 107.971538][ T5075] check_noncircular+0x317/0x400 [ 107.976508][ T5075] ? stack_trace_save+0x96/0xd0 [ 107.981383][ T5075] ? print_circular_bug+0x5c0/0x5c0 [ 107.986729][ T5075] ? _find_first_zero_bit+0x94/0xb0 [ 107.992065][ T5075] ? add_lock_to_list+0x17d/0x380 [ 107.997135][ T5075] __lock_acquire+0x2433/0x3b20 [ 108.002135][ T5075] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 108.008166][ T5075] ? _find_first_zero_bit+0x94/0xb0 [ 108.013405][ T5075] lock_acquire+0x1ae/0x520 [ 108.017952][ T5075] ? reiserfs_write_lock+0x79/0x100 [ 108.023293][ T5075] ? lock_sync+0x190/0x190 [ 108.027781][ T5075] ? preempt_count_sub+0x160/0x160 [ 108.032954][ T5075] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 108.038977][ T5075] __mutex_lock+0x175/0x9d0 [ 108.043516][ T5075] ? reiserfs_write_lock+0x79/0x100 [ 108.048744][ T5075] ? reiserfs_write_lock+0x79/0x100 [ 108.053966][ T5075] ? find_held_lock+0x2d/0x110 [ 108.058768][ T5075] ? mutex_trylock+0x130/0x130 [ 108.063577][ T5075] ? timestamp_truncate+0x21f/0x2d0 [ 108.068823][ T5075] ? reiserfs_write_lock+0x79/0x100 [ 108.074092][ T5075] reiserfs_write_lock+0x79/0x100 [ 108.079249][ T5075] reiserfs_dirty_inode+0xe6/0x270 [ 108.084394][ T5075] ? reiserfs_unfreeze+0xa0/0xa0 [ 108.089359][ T5075] ? mode_strip_sgid+0x1c0/0x1c0 [ 108.094331][ T5075] ? reiserfs_unfreeze+0xa0/0xa0 [ 108.099321][ T5075] __mark_inode_dirty+0x1e0/0xd60 [ 108.104548][ T5075] generic_update_time+0xcf/0xf0 [ 108.109524][ T5075] touch_atime+0x4eb/0x5d0 [ 108.113966][ T5075] generic_file_mmap+0x120/0x160 [ 108.118949][ T5075] mmap_region+0x5e3/0x2830 [ 108.123510][ T5075] ? expand_stack+0x4b0/0x4b0 [ 108.128210][ T5075] ? security_mmap_addr+0x84/0xa0 [ 108.133283][ T5075] ? get_unmapped_area+0x2c5/0x3e0 [ 108.138430][ T5075] do_mmap+0x893/0xef0 [ 108.142521][ T5075] vm_mmap_pgoff+0x1a8/0x3c0 [ 108.147134][ T5075] ? randomize_page+0xb0/0xb0 [ 108.151830][ T5075] ? __fget_files+0x1c6/0x340 [ 108.156532][ T5075] ksys_mmap_pgoff+0x422/0x5b0 [ 108.161347][ T5075] ? _raw_spin_unlock_irq+0x2e/0x50 [ 108.166590][ T5075] __x64_sys_mmap+0x125/0x190 [ 108.171288][ T5075] do_syscall_64+0x40/0x110 [ 108.175816][ T5075] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 108.181749][ T5075] RIP: 0033:0x7f5136a99499 [ 108.186177][ T5075] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 108.205852][ T5075] RSP: 002b:00007fffc07f1a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 108.214306][ T5075] RAX: ffffffffffffffda RBX: 00007f5136ae2095 RCX: 00007f5136a99499 [ 108.222380][ T5075] RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000020000000 [ 108.230369][ T5075] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000 [ 108.238357][ T5075] R10: 0000000000010012 R11: 0000000000000246 R12: 0000000000000001 [ 108.246341][ T5075] R13: 0000000000000000 R14: 431bde82d7b634db R15: 00007fffc07f1ab0 [ 108.254424][ T5075] [pid 5066] mkdir("./1", 0777) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5065] getdents64(4, [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5067] <... umount2 resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5065] <... getdents64 resumed>0x555555cec730 /* 0 entries */, 32768) = 0 [pid 5075] <... mmap resumed>) = 0x20000000 [pid 5072] <... restart_syscall resumed>) = 0 [pid 5067] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] <... openat resumed>) = 3 [pid 5065] close(4 [pid 5075] exit_group(0 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5065] <... close resumed>) = 0 [pid 5067] newfstatat(AT_FDCWD, "./0/file0", [pid 5066] ioctl(3, LOOP_CLR_FD [pid 5065] rmdir("./0/file0" [pid 5075] <... exit_group resumed>) = ? [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5066] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5065] <... rmdir resumed>) = 0 [pid 5072] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... close resumed>) = 0 [pid 5065] getdents64(3, [pid 5075] +++ exited with 0 +++ [pid 5072] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5066] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... openat resumed>) = 3 [pid 5067] <... openat resumed>) = 4 [pid 5065] <... getdents64 resumed>0x555555ce46f0 /* 0 entries */, 32768) = 0 [pid 5072] newfstatat(3, "", [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5067] newfstatat(4, "", [pid 5065] close(3 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5065] <... close resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5067] getdents64(4, 0x555555cec730 /* 2 entries */, 32768) = 48 [pid 5067] getdents64(4, [pid 5065] rmdir("./0" [pid 5072] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... getdents64 resumed>0x555555cec730 /* 0 entries */, 32768) = 0 [pid 5065] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] close(4 [pid 5069] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5067] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5067] rmdir("./0/file0" [pid 5069] newfstatat(3, "", [pid 5067] <... rmdir resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5067] getdents64(3, [pid 5069] getdents64(3, [pid 5067] <... getdents64 resumed>0x555555ce46f0 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555555ce46f0 /* 4 entries */, 32768) = 112 [pid 5067] close(3 [pid 5069] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x555555ce46f0 /* 4 entries */, 32768) = 112 [pid 5067] <... close resumed>) = 0 [pid 5065] mkdir("./1", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] rmdir("./0" [pid 5069] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5067] <... rmdir resumed>) = 0 [pid 5069] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] mkdir("./1", 0777 [pid 5065] <... mkdir resumed>) = 0 [pid 5069] unlink("./0/binderfs" [pid 5067] <... mkdir resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] <... openat resumed>) = 3 [pid 5072] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5067] ioctl(3, LOOP_CLR_FD [pid 5066] <... clone resumed>, child_tidptr=0x555555ce3650) = 5087 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5067] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5067] close(3) = 0 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x555555ce3650) = 5088 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] unlink("./0/binderfs") = 0 [pid 5065] <... openat resumed>) = 3 [pid 5065] ioctl(3, LOOP_CLR_FD [pid 5072] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5065] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5065] close(3) = 0 [pid 5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached [pid 5089] set_robust_list(0x555555ce3660, 24 [pid 5065] <... clone resumed>, child_tidptr=0x555555ce3650) = 5089 ./strace-static-x86_64: Process 5088 attached [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] set_robust_list(0x555555ce3660, 24./strace-static-x86_64: Process 5087 attached ) = 0 [pid 5089] chdir("./1" [pid 5087] set_robust_list(0x555555ce3660, 24 [pid 5089] <... chdir resumed>) = 0 [pid 5088] chdir("./1" [pid 5087] <... set_robust_list resumed>) = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] chdir("./1" [pid 5089] <... prctl resumed>) = 0 [pid 5088] <... chdir resumed>) = 0 [pid 5087] <... chdir resumed>) = 0 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] setpgid(0, 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... prctl resumed>) = 0 [pid 5089] <... setpgid resumed>) = 0 [pid 5088] <... prctl resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] setpgid(0, 0 [pid 5087] setpgid(0, 0 [pid 5088] <... setpgid resumed>) = 0 [pid 5087] <... setpgid resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... openat resumed>) = 3 [pid 5087] <... openat resumed>) = 3 [pid 5089] write(3, "1000", 4 [pid 5088] <... openat resumed>) = 3 [pid 5088] write(3, "1000", 4 [pid 5089] <... write resumed>) = 4 [pid 5087] write(3, "1000", 4 [pid 5089] close(3 [pid 5088] <... write resumed>) = 4 [pid 5087] <... write resumed>) = 4 [pid 5088] close(3 [pid 5087] close(3 [pid 5089] <... close resumed>) = 0 [pid 5088] <... close resumed>) = 0 [pid 5087] <... close resumed>) = 0 [pid 5089] symlink("/dev/binderfs", "./binderfs" [pid 5088] symlink("/dev/binderfs", "./binderfs" [pid 5087] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5088] <... symlink resumed>) = 0 [pid 5087] memfd_create("syzkaller", 0 [pid 5088] memfd_create("syzkaller", 0 [pid 5087] <... memfd_create resumed>) = 3 [pid 5089] <... symlink resumed>) = 0 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] <... memfd_create resumed>) = 3 [pid 5087] <... mmap resumed>) = 0x7f512e65a000 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] memfd_create("syzkaller", 0 [pid 5088] <... mmap resumed>) = 0x7f512e65a000 [pid 5089] <... memfd_create resumed>) = 3 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f512e65a000 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5069] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5069] getdents64(4, 0x555555cec730 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555cec730 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./0/file0") = 0 [pid 5069] getdents64(3, 0x555555ce46f0 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./0") = 0 [pid 5069] mkdir("./1", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [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"..., 4194304 [pid 5069] <... clone resumed>, child_tidptr=0x555555ce3650) = 5090 ./strace-static-x86_64: Process 5090 attached [pid 5090] set_robust_list(0x555555ce3660, 24) = 0 [pid 5090] chdir("./1") = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5090] <... prctl resumed>) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5090] write(3, "1000", 4) = 4 [pid 5090] close(3 [pid 5068] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] <... close resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5090] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5068] newfstatat(AT_FDCWD, "./0/file0", [pid 5090] memfd_create("syzkaller", 0) = 3 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5072] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5090] <... mmap resumed>) = 0x7f512e65a000 [pid 5072] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5068] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5072] getdents64(4, 0x555555cec730 /* 2 entries */, 32768) = 48 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(4, [pid 5068] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] <... getdents64 resumed>0x555555cec730 /* 0 entries */, 32768) = 0 [pid 5068] newfstatat(4, "", [pid 5072] close(4 [pid 5068] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./0/file0" [pid 5068] getdents64(4, 0x555555cec730 /* 2 entries */, 32768) = 48 [pid 5072] <... rmdir resumed>) = 0 [pid 5068] getdents64(4, 0x555555cec730 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5072] getdents64(3, [pid 5068] rmdir("./0/file0" [pid 5072] <... getdents64 resumed>0x555555ce46f0 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5072] close(3 [pid 5068] getdents64(3, 0x555555ce46f0 /* 0 entries */, 32768) = 0 [pid 5072] <... close resumed>) = 0 [pid 5068] close(3 [pid 5072] rmdir("./0" [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./0") = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./1", 0777 [pid 5068] mkdir("./1", 0777 [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"..., 4194304 [pid 5087] <... write resumed>) = 4194304 [pid 5072] <... mkdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5087] munmap(0x7f512e65a000, 138412032 [pid 5072] <... openat resumed>) = 3 [pid 5087] <... munmap resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5068] <... openat resumed>) = 3 [pid 5087] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5072] close(3 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... close resumed>) = 0 [pid 5068] close(3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5091 attached [pid 5087] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5092 attached [pid 5092] set_robust_list(0x555555ce3660, 24) = 0 [pid 5092] chdir("./1") = 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 5089] <... write resumed>) = 4194304 [pid 5087] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... clone resumed>, child_tidptr=0x555555ce3650) = 5091 [pid 5072] <... clone resumed>, child_tidptr=0x555555ce3650) = 5092 [pid 5091] set_robust_list(0x555555ce3660, 24 [pid 5092] write(3, "1000", 4 [pid 5088] <... write resumed>) = 4194304 [pid 5092] <... write resumed>) = 4 [pid 5092] close(3) = 0 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5087] <... ioctl resumed>) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5091] chdir("./1" [pid 5087] close(3 [pid 5092] memfd_create("syzkaller", 0 [pid 5091] <... chdir resumed>) = 0 [pid 5087] <... close resumed>) = 0 [pid 5092] <... memfd_create resumed>) = 3 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] mkdir("./file0", 0777 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5091] <... prctl resumed>) = 0 [pid 5092] <... mmap resumed>) = 0x7f512e65a000 [pid 5091] setpgid(0, 0 [pid 5089] munmap(0x7f512e65a000, 138412032 [pid 5091] <... setpgid resumed>) = 0 [pid 5088] munmap(0x7f512e65a000, 138412032 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... munmap resumed>) = 0 [pid 5088] <... munmap resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5091] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5091] write(3, "1000", 4 [pid 5089] <... openat resumed>) = 4 [pid 5088] <... openat resumed>) = 4 [pid 5091] <... write resumed>) = 4 [pid 5089] ioctl(4, LOOP_SET_FD, 3 [pid 5088] ioctl(4, LOOP_SET_FD, 3 [pid 5091] close(3 [pid 5088] <... ioctl resumed>) = 0 [pid 5091] <... close resumed>) = 0 [pid 5088] close(3) = 0 [pid 5091] symlink("/dev/binderfs", "./binderfs" [ 108.866876][ T5087] loop1: detected capacity change from 0 to 8192 [ 108.896717][ T5088] loop2: detected capacity change from 0 to 8192 [pid 5088] mkdir("./file0", 0777 [pid 5089] <... ioctl resumed>) = 0 [pid 5089] close(3) = 0 [pid 5089] mkdir("./file0", 0777 [pid 5091] <... symlink resumed>) = 0 [pid 5088] <... mkdir resumed>) = 0 [pid 5088] mount("/dev/loop2", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5087] <... mkdir resumed>) = 0 [ 108.911312][ T5089] loop0: detected capacity change from 0 to 8192 [pid 5091] memfd_create("syzkaller", 0 [pid 5089] <... mkdir resumed>) = 0 [pid 5087] mount("/dev/loop1", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5091] <... memfd_create resumed>) = 3 [pid 5089] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f512e65a000 [ 108.966677][ T5087] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.982005][ T5088] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.996928][ T5089] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5092] <... write resumed>) = 4194304 [pid 5092] munmap(0x7f512e65a000, 138412032 [pid 5090] <... write resumed>) = 4194304 [ 109.022835][ T5088] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 109.033206][ T5087] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 109.035011][ T5089] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 109.051825][ T5089] REISERFS (device loop0): using ordered data mode [ 109.057583][ T5088] REISERFS (device loop2): using ordered data mode [ 109.060098][ T5089] reiserfs: using flush barriers [pid 5090] munmap(0x7f512e65a000, 138412032) = 0 [pid 5092] <... munmap resumed>) = 0 [pid 5091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5090] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5090] ioctl(4, LOOP_SET_FD, 3 [ 109.065486][ T5087] REISERFS (device loop1): using ordered data mode [ 109.072504][ T5088] reiserfs: using flush barriers [ 109.079843][ T5090] loop4: detected capacity change from 0 to 8192 [ 109.084185][ T5087] reiserfs: using flush barriers [ 109.093302][ T5088] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5092] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5092] ioctl(4, LOOP_SET_FD, 3 [pid 5090] <... ioctl resumed>) = 0 [pid 5090] close(3) = 0 [pid 5090] mkdir("./file0", 0777) = 0 [pid 5090] mount("/dev/loop4", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5092] <... ioctl resumed>) = 0 [pid 5092] close(3) = 0 [ 109.098998][ T5089] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.113418][ T5088] REISERFS (device loop2): checking transaction log (loop2) [ 109.133945][ T5092] loop5: detected capacity change from 0 to 8192 [ 109.141184][ T5087] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.158579][ T5087] REISERFS (device loop1): checking transaction log (loop1) [pid 5092] mkdir("./file0", 0777) = 0 [pid 5092] mount("/dev/loop5", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5088] <... mount resumed>) = 0 [ 109.160387][ T5090] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.168348][ T5089] REISERFS (device loop0): checking transaction log (loop0) [ 109.188771][ T5088] REISERFS (device loop2): Using r5 hash to sort names [ 109.196690][ T5090] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 109.197220][ T5087] REISERFS (device loop1): Using r5 hash to sort names [ 109.206207][ T5090] REISERFS (device loop4): using ordered data mode [pid 5088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5088] chdir("./file0") = 0 [pid 5088] ioctl(4, LOOP_CLR_FD) = 0 [ 109.219509][ T5092] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.220898][ T5089] REISERFS (device loop0): Using r5 hash to sort names [ 109.232507][ T5090] reiserfs: using flush barriers [ 109.235390][ T5090] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.252474][ T5088] reiserfs: enabling write barrier flush mode [pid 5088] close(4) = 0 [pid 5088] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5088] 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, "" [pid 5087] <... mount resumed>) = 0 [pid 5087] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5090] <... mount resumed>) = 0 [pid 5089] <... mount resumed>) = 0 [pid 5088] <... mount resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5088] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5090] <... openat resumed>) = 3 [pid 5087] chdir("./file0") = 0 [pid 5087] ioctl(4, LOOP_CLR_FD [pid 5090] chdir("./file0" [pid 5089] <... openat resumed>) = 3 [pid 5088] <... openat resumed>) = 4 [pid 5087] <... ioctl resumed>) = 0 [pid 5090] <... chdir resumed>) = 0 [pid 5087] close(4 [ 109.260523][ T5092] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 109.268238][ T5090] REISERFS (device loop4): checking transaction log (loop4) [ 109.286390][ T5090] REISERFS (device loop4): Using r5 hash to sort names [ 109.287950][ T5088] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 109.295002][ T5092] REISERFS (device loop5): using ordered data mode [ 109.309043][ T5092] reiserfs: using flush barriers [pid 5090] ioctl(4, LOOP_CLR_FD [pid 5091] <... write resumed>) = 4194304 [pid 5090] <... ioctl resumed>) = 0 [pid 5089] chdir("./file0" [pid 5088] chdir("." [pid 5087] <... close resumed>) = 0 [pid 5089] <... chdir resumed>) = 0 [pid 5089] ioctl(4, LOOP_CLR_FD [pid 5088] <... chdir resumed>) = 0 [pid 5089] <... ioctl resumed>) = 0 [pid 5088] creat("./bus", 000 [pid 5087] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5089] close(4 [pid 5091] munmap(0x7f512e65a000, 138412032 [pid 5088] <... creat resumed>) = 5 [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, "" [pid 5089] <... close resumed>) = 0 [pid 5091] <... munmap resumed>) = 0 [pid 5090] close(4 [pid 5089] mkdir(".", 0777 [pid 5088] ioctl(5, FS_IOC_GETVERSION [pid 5091] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5089] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5088] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5089] 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, "" [pid 5090] <... close resumed>) = 0 [pid 5090] mkdir(".", 0777) = -1 EEXIST (File exists) [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, "" [pid 5091] <... openat resumed>) = 4 [pid 5088] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5091] ioctl(4, LOOP_SET_FD, 3 [pid 5088] <... openat resumed>) = 6 [ 109.330848][ T5092] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.354338][ T5087] reiserfs: enabling write barrier flush mode [ 109.361922][ T5089] reiserfs: enabling write barrier flush mode [ 109.363815][ T5090] reiserfs: enabling write barrier flush mode [pid 5088] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0) = 0x20000000 [pid 5088] exit_group(0) = ? [pid 5088] +++ exited with 0 +++ [ 109.383250][ T5091] loop3: detected capacity change from 0 to 8192 [ 109.387844][ T5092] REISERFS (device loop5): checking transaction log (loop5) [ 109.392196][ T5089] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 109.408137][ T5087] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5087] <... mount resumed>) = 0 [pid 5091] <... ioctl resumed>) = 0 [pid 5089] <... mount resumed>) = 0 [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5091] close(3 [pid 5089] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5091] <... close resumed>) = 0 [pid 5091] mkdir("./file0", 0777 [pid 5089] <... openat resumed>) = 4 [pid 5087] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5091] <... mkdir resumed>) = 0 [pid 5091] mount("/dev/loop3", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "" [pid 5089] chdir("." [pid 5087] chdir("." [pid 5067] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5087] <... chdir resumed>) = 0 [pid 5089] <... chdir resumed>) = 0 [pid 5087] creat("./bus", 000 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5089] creat("./bus", 000 [pid 5087] <... creat resumed>) = 5 [pid 5067] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5087] ioctl(5, FS_IOC_GETVERSION [pid 5092] <... mount resumed>) = 0 [pid 5087] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5067] <... openat resumed>) = 3 [pid 5087] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6 [pid 5067] newfstatat(3, "", [pid 5087] mmap(0x20000000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_NONBLOCK, 6, 0) = 0x20000000 [pid 5067] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5087] exit_group(0) = ? [pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5087] +++ exited with 0 +++ [pid 5092] chdir("./file0" [pid 5090] <... mount resumed>) = 0 [pid 5067] getdents64(3, [pid 5092] <... chdir resumed>) = 0 [pid 5090] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5092] ioctl(4, LOOP_CLR_FD) = 0 [pid 5090] <... openat resumed>) = 4 [pid 5067] <... getdents64 resumed>0x555555ce46f0 /* 4 entries */, 32768) = 112 [pid 5066] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5090] chdir(".") = 0 [pid 5067] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] restart_syscall(<... resuming interrupted clone ...> [pid 5090] creat("./bus", 000) = 5 [pid 5067] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5066] <... restart_syscall resumed>) = 0 [pid 5090] ioctl(5, FS_IOC_GETVERSION