./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor204602469 <...> Warning: Permanently added '10.128.0.144' (ED25519) to the list of known hosts. execve("./syz-executor204602469", ["./syz-executor204602469"], 0x7fffce6e2bc0 /* 10 vars */) = 0 brk(NULL) = 0x55557f81b000 brk(0x55557f81bd00) = 0x55557f81bd00 arch_prctl(ARCH_SET_FS, 0x55557f81b380) = 0 set_tid_address(0x55557f81b650) = 5078 set_robust_list(0x55557f81b660, 24) = 0 rseq(0x55557f81bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor204602469", 4096) = 27 getrandom("\x53\xeb\xcd\xf3\xec\xf3\x73\x04", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557f81bd00 brk(0x55557f83cd00) = 0x55557f83cd00 brk(0x55557f83d000) = 0x55557f83d000 mprotect(0x7f5a28c7c000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached , child_tidptr=0x55557f81b650) = 5079 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] set_robust_list(0x55557f81b660, 24) = 0 ./strace-static-x86_64: Process 5080 attached [pid 5078] <... clone resumed>, child_tidptr=0x55557f81b650) = 5080 [pid 5080] set_robust_list(0x55557f81b660, 24 [pid 5079] mkdir("./syzkaller.xJCfMl", 0700 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... set_robust_list resumed>) = 0 [pid 5080] mkdir("./syzkaller.qZFOft", 0700./strace-static-x86_64: Process 5081 attached [pid 5078] <... clone resumed>, child_tidptr=0x55557f81b650) = 5081 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] set_robust_list(0x55557f81b660, 24 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] chmod("./syzkaller.qZFOft", 0777 [pid 5079] chmod("./syzkaller.xJCfMl", 0777./strace-static-x86_64: Process 5082 attached [pid 5078] <... clone resumed>, child_tidptr=0x55557f81b650) = 5082 [pid 5081] mkdir("./syzkaller.IzrOFg", 0700 [pid 5079] <... chmod resumed>) = 0 [pid 5080] <... chmod resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] set_robust_list(0x55557f81b660, 24 [pid 5080] chdir("./syzkaller.qZFOft" [pid 5079] chdir("./syzkaller.xJCfMl" [pid 5082] <... set_robust_list resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... chdir resumed>) = 0 [pid 5079] <... chdir resumed>) = 0 [pid 5080] mkdir("./0", 0777 [pid 5079] mkdir("./0", 0777 [pid 5082] mkdir("./syzkaller.RYDWT5", 0700 [pid 5081] chmod("./syzkaller.IzrOFg", 0777 [pid 5080] <... mkdir resumed>) = 0 [pid 5081] <... chmod resumed>) = 0 ./strace-static-x86_64: Process 5083 attached [pid 5082] <... mkdir resumed>) = 0 [pid 5081] chdir("./syzkaller.IzrOFg" [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] <... mkdir resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x55557f81b650) = 5083 [pid 5083] set_robust_list(0x55557f81b660, 24 [pid 5082] chmod("./syzkaller.RYDWT5", 0777 [pid 5081] <... chdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] <... set_robust_list resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5080] close(3 [pid 5083] mkdir("./syzkaller.6ASEJs", 0700 [pid 5082] <... chmod resumed>) = 0 [pid 5081] mkdir("./0", 0777 [pid 5079] <... openat resumed>) = 3 [pid 5083] <... mkdir resumed>) = 0 [pid 5082] chdir("./syzkaller.RYDWT5" [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5082] <... chdir resumed>) = 0 [pid 5083] chmod("./syzkaller.6ASEJs", 0777 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5083] <... chmod resumed>) = 0 [pid 5082] mkdir("./0", 0777 [pid 5081] <... openat resumed>) = 3 [pid 5079] close(3./strace-static-x86_64: Process 5084 attached [pid 5083] chdir("./syzkaller.6ASEJs" [pid 5082] <... mkdir resumed>) = 0 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5084 [pid 5079] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5084] set_robust_list(0x55557f81b660, 24 [pid 5083] <... chdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5085 attached [pid 5084] <... set_robust_list resumed>) = 0 [pid 5083] mkdir("./0", 0777 [pid 5082] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5085 [pid 5085] set_robust_list(0x55557f81b660, 24) = 0 [pid 5084] chdir("./0" [pid 5083] <... mkdir resumed>) = 0 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5081] <... close resumed>) = 0 [pid 5085] chdir("./0" [pid 5084] <... chdir resumed>) = 0 [pid 5082] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] close(3 [pid 5084] setpgid(0, 0 [pid 5082] <... close resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5085] <... chdir resumed>) = 0 [pid 5084] <... setpgid resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] <... openat resumed>) = 3 [pid 5083] <... openat resumed>) = 3 [pid 5085] <... prctl resumed>) = 0 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5085] setpgid(0, 0 [pid 5083] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5087 ./strace-static-x86_64: Process 5087 attached [pid 5085] <... setpgid resumed>) = 0 [pid 5083] close(3 [pid 5084] write(3, "1000", 4 [pid 5087] set_robust_list(0x55557f81b660, 24 [pid 5084] <... write resumed>) = 4 ./strace-static-x86_64: Process 5088 attached [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] close(3 [pid 5083] <... close resumed>) = 0 [pid 5088] set_robust_list(0x55557f81b660, 24 [pid 5084] <... close resumed>) = 0 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5084] symlink("/dev/binderfs", "./binderfs" [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5088 [pid 5088] chdir("./0" [pid 5087] chdir("./0" [pid 5084] <... symlink resumed>) = 0 [pid 5088] <... chdir resumed>) = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] setpgid(0, 0) = 0 [pid 5087] <... chdir resumed>) = 0 [pid 5085] write(3, "1000", 4 [pid 5084] memfd_create("syzkaller", 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] <... write resumed>) = 4 [pid 5088] <... openat resumed>) = 3 [pid 5088] write(3, "1000", 4) = 4 [pid 5088] close(3) = 0 [pid 5085] close(3 [pid 5087] <... prctl resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5088] symlink("/dev/binderfs", "./binderfs" [pid 5085] symlink("/dev/binderfs", "./binderfs" [pid 5087] setpgid(0, 0 [pid 5088] <... symlink resumed>) = 0 [pid 5087] <... setpgid resumed>) = 0 [pid 5085] <... symlink resumed>) = 0 [pid 5088] memfd_create("syzkaller", 0 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5089 ./strace-static-x86_64: Process 5089 attached [pid 5087] <... openat resumed>) = 3 [pid 5089] set_robust_list(0x55557f81b660, 24 [pid 5088] <... memfd_create resumed>) = 3 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5085] memfd_create("syzkaller", 0 [pid 5084] <... memfd_create resumed>) = 3 [pid 5089] chdir("./0" [pid 5088] <... mmap resumed>) = 0x7f5a20600000 [pid 5087] write(3, "1000", 4 [pid 5085] <... memfd_create resumed>) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... chdir resumed>) = 0 [pid 5084] <... mmap resumed>) = 0x7f5a20600000 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5087] <... write resumed>) = 4 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5089] <... prctl resumed>) = 0 [pid 5089] setpgid(0, 0 [pid 5085] <... mmap resumed>) = 0x7f5a20600000 [pid 5089] <... setpgid resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] close(3) = 0 [pid 5089] <... openat resumed>) = 3 [pid 5087] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5089] write(3, "1000", 4) = 4 [pid 5087] memfd_create("syzkaller", 0 [pid 5089] close(3) = 0 [pid 5089] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5087] <... memfd_create resumed>) = 3 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5089] memfd_create("syzkaller", 0) = 3 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [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"..., 16777216 [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"..., 16777216 [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"..., 16777216 [pid 5084] <... write resumed>) = 16777216 [pid 5084] munmap(0x7f5a20600000, 138412032 [pid 5089] <... write resumed>) = 16777216 [pid 5089] munmap(0x7f5a20600000, 138412032 [pid 5084] <... munmap resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5089] <... munmap resumed>) = 0 [pid 5084] <... openat resumed>) = 4 [pid 5084] ioctl(4, LOOP_SET_FD, 3 [pid 5089] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5089] ioctl(4, LOOP_SET_FD, 3 [pid 5085] <... write resumed>) = 16777216 [pid 5085] munmap(0x7f5a20600000, 138412032 [pid 5088] <... write resumed>) = 16777216 [pid 5084] <... ioctl resumed>) = 0 [pid 5084] close(3) = 0 [pid 5084] close(4) = 0 [pid 5089] <... ioctl resumed>) = 0 [pid 5088] munmap(0x7f5a20600000, 138412032 [pid 5084] mkdir("./file0", 0777 [pid 5089] close(3 [pid 5087] <... write resumed>) = 16777216 [pid 5089] <... close resumed>) = 0 [pid 5089] close(4) = 0 [pid 5087] munmap(0x7f5a20600000, 138412032 [pid 5085] <... munmap resumed>) = 0 [pid 5089] mkdir("./file0", 0777 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5089] <... mkdir resumed>) = 0 [pid 5089] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5084] <... mkdir resumed>) = 0 [pid 5085] <... openat resumed>) = 4 syzkaller login: [ 73.582670][ T5084] loop1: detected capacity change from 0 to 32768 [ 73.593590][ T5089] loop4: detected capacity change from 0 to 32768 [pid 5084] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5085] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5085] close(3) = 0 [pid 5085] close(4 [pid 5087] <... munmap resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5085] mkdir("./file0", 0777 [pid 5088] <... munmap resumed>) = 0 [pid 5085] <... mkdir resumed>) = 0 [ 73.647425][ T5085] loop0: detected capacity change from 0 to 32768 [ 73.674162][ T5084] [ 73.674162][ T5084] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.674162][ T5084] [pid 5085] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5087] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5088] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5084] <... mount resumed>) = 0 [pid 5088] ioctl(4, LOOP_SET_FD, 3 [pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5084] chdir("./file0" [pid 5087] ioctl(4, LOOP_SET_FD, 3 [pid 5084] <... chdir resumed>) = 0 [pid 5089] <... mount resumed>) = 0 [pid 5089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5089] chdir("./file0") = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] openat(AT_FDCWD, ".", O_RDONLY [pid 5084] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5089] <... openat resumed>) = 4 [pid 5084] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5089] getdents64(4, [pid 5084] openat(AT_FDCWD, ".", O_RDONLY [pid 5089] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5084] <... openat resumed>) = 4 [pid 5084] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5089] exit_group(0 [pid 5084] exit_group(0 [pid 5089] <... exit_group resumed>) = ? [pid 5084] <... exit_group resumed>) = ? [pid 5084] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=26 /* 0.26 s */} --- [pid 5089] +++ exited with 0 +++ [pid 5085] <... mount resumed>) = 0 [pid 5085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=28 /* 0.28 s */} --- [pid 5080] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5087] <... ioctl resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5085] chdir("./file0" [pid 5080] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5087] close(3 [pid 5085] <... chdir resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5087] <... close resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] newfstatat(3, "", [pid 5087] close(4 [pid 5085] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5087] <... close resumed>) = 0 [pid 5085] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5087] mkdir("./file0", 0777 [pid 5085] <... openat resumed>) = 4 [pid 5085] getdents64(4, [pid 5080] getdents64(3, [pid 5085] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5085] exit_group(0 [pid 5088] <... ioctl resumed>) = 0 [pid 5085] <... exit_group resumed>) = ? [pid 5088] close(3 [pid 5087] <... mkdir resumed>) = 0 [pid 5085] +++ exited with 0 +++ [pid 5083] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5088] <... close resumed>) = 0 [pid 5087] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] newfstatat(3, "", [pid 5080] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=29 /* 0.29 s */} --- [pid 5088] close(4 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] getdents64(3, [pid 5080] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5079] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] unlink("./0/binderfs" [pid 5079] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5088] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [ 73.699228][ T5089] [ 73.699228][ T5089] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.699228][ T5089] [ 73.711716][ T5085] [ 73.711716][ T5085] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.711716][ T5085] [ 73.717491][ T5088] loop3: detected capacity change from 0 to 32768 [ 73.730482][ T5087] loop2: detected capacity change from 0 to 32768 [pid 5088] mkdir("./file0", 0777 [pid 5079] newfstatat(3, "", [pid 5088] <... mkdir resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] unlink("./0/binderfs") = 0 [pid 5079] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5088] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./0/binderfs") = 0 [ 73.769361][ T5087] [ 73.769361][ T5087] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.769361][ T5087] [ 73.786935][ T62] [ 73.786935][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.786935][ T62] [ 73.792739][ T5088] [ 73.792739][ T5088] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.792739][ T5088] [ 73.798046][ T1837] [ 73.798046][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.798046][ T1837] [pid 5083] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5088] <... mount resumed>) = 0 [pid 5087] <... mount resumed>) = 0 [pid 5088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5088] chdir("./file0") = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5088] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5088] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5088] exit_group(0) = ? [pid 5088] +++ exited with 0 +++ [pid 5087] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5087] chdir("./file0") = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5087] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5087] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5087] exit_group(0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=31 /* 0.31 s */} --- [pid 5087] <... exit_group resumed>) = ? [pid 5087] +++ exited with 0 +++ [ 73.819661][ T11] [ 73.819661][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.819661][ T11] [ 73.831310][ T62] [ 73.831310][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.831310][ T62] [ 73.849304][ T5080] [ 73.849304][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.849304][ T5080] [ 73.860012][ T11] [ 73.860012][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5082] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] newfstatat(3, "", [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] getdents64(3, [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 73.860012][ T11] [ 73.867383][ T1837] [ 73.867383][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.867383][ T1837] [ 73.885530][ T111] [ 73.885530][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.885530][ T111] [ 73.902899][ T112] [ 73.902899][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.902899][ T112] [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] getdents64(3, [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5081] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] unlink("./0/binderfs" [pid 5081] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5082] <... unlink resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 73.921125][ T5083] [ 73.921125][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.921125][ T5083] [ 73.921301][ T5080] [ 73.921301][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.921301][ T5080] [ 73.950630][ T5079] [ 73.950630][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.950630][ T5079] [ 73.968578][ T5083] [pid 5081] unlink("./0/binderfs") = 0 [pid 5081] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [ 73.968578][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.968578][ T5083] [ 73.979842][ T1837] [ 73.979842][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.979842][ T1837] [ 73.991152][ T62] [ 73.991152][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 73.991152][ T62] [ 74.002445][ T5079] [ 74.002445][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.002445][ T5079] [ 74.016825][ T1837] [pid 5080] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 74.016825][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.016825][ T1837] [ 74.017641][ T62] [ 74.017641][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.017641][ T62] [ 74.028736][ T111] [ 74.028736][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.028736][ T111] [ 74.048543][ T5081] [ 74.048543][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.048543][ T5081] [ 74.059182][ T112] [ 74.059182][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.059182][ T112] [pid 5080] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5080] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = 0 [pid 5083] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./0/file0", [pid 5079] newfstatat(AT_FDCWD, "./0/file0", [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] <... openat resumed>) = 4 [pid 5080] <... openat resumed>) = 4 [pid 5079] <... openat resumed>) = 4 [pid 5083] newfstatat(4, "", [pid 5079] newfstatat(4, "", [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, [pid 5079] getdents64(4, [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, [pid 5079] getdents64(4, [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4 [pid 5079] close(4 [pid 5083] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5083] rmdir("./0/file0" [pid 5079] rmdir("./0/file0" [pid 5083] <... rmdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5083] getdents64(3, [pid 5079] getdents64(3, [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3 [pid 5079] close(3 [pid 5083] <... close resumed>) = 0 [pid 5080] newfstatat(4, "", [pid 5079] <... close resumed>) = 0 [pid 5083] rmdir("./0" [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] rmdir("./0") = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5079] mkdir("./1", 0777 [pid 5081] <... umount2 resumed>) = 0 [pid 5080] getdents64(4, [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] mkdir("./1", 0777 [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] <... mkdir resumed>) = 0 [ 74.070989][ T5081] [ 74.070989][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.070989][ T5081] [ 74.082439][ T112] [ 74.082439][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.082439][ T112] [ 74.095236][ T5082] [ 74.095236][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 74.095236][ T5082] [ 74.112522][ T5082] [ 74.112522][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5081] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] getdents64(4, [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] newfstatat(AT_FDCWD, "./0/file0", [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] close(4) = 0 [pid 5082] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 74.112522][ T5082] [pid 5080] rmdir("./0/file0" [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... rmdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] getdents64(3, [pid 5082] newfstatat(AT_FDCWD, "./0/file0", [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] newfstatat(4, "", [pid 5080] close(3 [pid 5082] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... close resumed>) = 0 [pid 5081] getdents64(4, [pid 5080] rmdir("./0" [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] <... rmdir resumed>) = 0 [pid 5081] getdents64(4, [pid 5082] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... openat resumed>) = 4 [pid 5081] close(4) = 0 [pid 5081] rmdir("./0/file0" [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] mkdir("./1", 0777) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] getdents64(3, [pid 5080] <... openat resumed>) = 3 [pid 5082] close(4 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5082] <... close resumed>) = 0 [pid 5081] close(3 [pid 5082] rmdir("./0/file0" [pid 5081] <... close resumed>) = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5081] rmdir("./0") = 0 [pid 5082] getdents64(3, [pid 5081] mkdir("./1", 0777 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./0") = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5082] mkdir("./1", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... openat resumed>) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5093 attached , child_tidptr=0x55557f81b650) = 5093 [pid 5093] set_robust_list(0x55557f81b660, 24) = 0 [pid 5093] chdir("./1") = 0 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5093] setpgid(0, 0) = 0 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1000", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5093] memfd_create("syzkaller", 0) = 3 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3 [pid 5082] <... ioctl resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5082] close(3 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... close resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5094 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5095 [pid 5094] set_robust_list(0x55557f81b660, 24./strace-static-x86_64: Process 5095 attached [pid 5095] set_robust_list(0x55557f81b660, 24) = 0 [pid 5094] <... set_robust_list resumed>) = 0 [pid 5095] chdir("./1" [pid 5094] chdir("./1") = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] <... chdir resumed>) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] <... prctl resumed>) = 0 [pid 5095] setpgid(0, 0 [pid 5094] setpgid(0, 0 [pid 5095] <... setpgid resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] <... setpgid resumed>) = 0 [pid 5095] write(3, "1000", 4 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... ioctl resumed>) = 0 [pid 5095] <... write resumed>) = 4 [pid 5095] close(3) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5094] write(3, "1000", 4) = 4 [pid 5095] symlink("/dev/binderfs", "./binderfs" [pid 5094] close(3 [pid 5081] <... close resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] symlink("/dev/binderfs", "./binderfs" [pid 5095] <... symlink resumed>) = 0 [pid 5080] close(3 [pid 5095] memfd_create("syzkaller", 0 [pid 5080] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] <... memfd_create resumed>) = 3 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5094] <... symlink resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5096 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5097 ./strace-static-x86_64: Process 5096 attached [pid 5096] set_robust_list(0x55557f81b660, 24) = 0 ./strace-static-x86_64: Process 5097 attached [pid 5096] chdir("./1" [pid 5094] memfd_create("syzkaller", 0 [pid 5097] set_robust_list(0x55557f81b660, 24 [pid 5096] <... chdir resumed>) = 0 [pid 5094] <... memfd_create resumed>) = 3 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] setpgid(0, 0) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5096] write(3, "1000", 4) = 4 [pid 5097] chdir("./1") = 0 [pid 5096] close(3) = 0 [pid 5096] symlink("/dev/binderfs", "./binderfs" [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] <... symlink resumed>) = 0 [pid 5097] <... prctl resumed>) = 0 [pid 5096] memfd_create("syzkaller", 0 [pid 5097] setpgid(0, 0) = 0 [pid 5096] <... memfd_create resumed>) = 3 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5097] <... openat resumed>) = 3 [pid 5097] write(3, "1000", 4) = 4 [pid 5097] close(3 [pid 5096] <... mmap resumed>) = 0x7f5a20600000 [pid 5097] <... close resumed>) = 0 [pid 5097] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5097] memfd_create("syzkaller", 0) = 3 [pid 5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [pid 5097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5093] <... write resumed>) = 16777216 [pid 5093] munmap(0x7f5a20600000, 138412032) = 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] close(4) = 0 [pid 5093] mkdir("./file0", 0777) = 0 [ 75.442979][ T5093] loop0: detected capacity change from 0 to 32768 [pid 5093] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5093] chdir("./file0") = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5093] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 75.492871][ T5093] [ 75.492871][ T5093] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.492871][ T5093] [pid 5093] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5093] exit_group(0) = ? [pid 5093] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=28 /* 0.28 s */} --- [pid 5079] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./1/binderfs") = 0 [ 75.598329][ T2436] [ 75.598329][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.598329][ T2436] [pid 5079] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5094] <... write resumed>) = 16777216 [pid 5094] munmap(0x7f5a20600000, 138412032 [pid 5095] <... write resumed>) = 16777216 [pid 5094] <... munmap resumed>) = 0 [ 75.648274][ T2436] [ 75.648274][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.648274][ T2436] [ 75.680721][ T5079] [ 75.680721][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.680721][ T5079] [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5095] munmap(0x7f5a20600000, 138412032 [pid 5094] <... openat resumed>) = 4 [pid 5097] <... write resumed>) = 16777216 [pid 5096] <... write resumed>) = 16777216 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5097] munmap(0x7f5a20600000, 138412032 [pid 5096] munmap(0x7f5a20600000, 138412032 [pid 5095] <... munmap resumed>) = 0 [pid 5094] <... ioctl resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5094] close(3 [pid 5079] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5094] <... close resumed>) = 0 [pid 5095] <... openat resumed>) = 4 [pid 5094] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5097] <... munmap resumed>) = 0 [pid 5095] ioctl(4, LOOP_SET_FD, 3 [pid 5094] <... close resumed>) = 0 [pid 5079] newfstatat(AT_FDCWD, "./1/file0", [pid 5097] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 75.708578][ T111] [ 75.708578][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.708578][ T111] [ 75.726770][ T5079] [ 75.726770][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.726770][ T5079] [ 75.729263][ T5094] loop4: detected capacity change from 0 to 32768 [pid 5094] mkdir("./file0", 0777 [pid 5097] <... openat resumed>) = 4 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5097] ioctl(4, LOOP_SET_FD, 3 [pid 5095] <... ioctl resumed>) = 0 [pid 5094] <... mkdir resumed>) = 0 [pid 5079] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5094] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", [pid 5095] close(3 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5095] <... close resumed>) = 0 [pid 5095] close(4 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./1/file0" [pid 5097] <... ioctl resumed>) = 0 [pid 5096] <... munmap resumed>) = 0 [pid 5095] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5097] close(3 [pid 5096] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5095] mkdir("./file0", 0777) = 0 [pid 5097] <... close resumed>) = 0 [pid 5096] <... openat resumed>) = 4 [pid 5094] <... mount resumed>) = 0 [pid 5079] getdents64(3, [pid 5096] ioctl(4, LOOP_SET_FD, 3 [ 75.767651][ T5095] loop3: detected capacity change from 0 to 32768 [ 75.775076][ T5097] loop1: detected capacity change from 0 to 32768 [ 75.801363][ T5094] [ 75.801363][ T5094] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.801363][ T5094] [pid 5094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5096] <... ioctl resumed>) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5094] chdir("./file0" [pid 5097] close(4 [pid 5094] <... chdir resumed>) = 0 [pid 5079] close(3 [pid 5097] <... close resumed>) = 0 [pid 5095] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... close resumed>) = 0 [pid 5097] mkdir("./file0", 0777) = 0 [pid 5094] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] rmdir("./1" [pid 5094] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] <... rmdir resumed>) = 0 [pid 5097] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5094] <... openat resumed>) = 4 [pid 5094] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./2", 0777 [pid 5096] close(3 [pid 5095] <... mount resumed>) = 0 [pid 5094] exit_group(0 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5094] <... exit_group resumed>) = ? [pid 5095] <... openat resumed>) = 3 [pid 5094] +++ exited with 0 +++ [pid 5079] <... openat resumed>) = 3 [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5096] <... close resumed>) = 0 [pid 5095] chdir("./file0" [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5095] <... chdir resumed>) = 0 [pid 5096] close(4 [pid 5095] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", [pid 5096] <... close resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5096] mkdir("./file0", 0777 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5096] <... mkdir resumed>) = 0 [pid 5095] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5096] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5095] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./1/binderfs" [pid 5095] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 75.818694][ T5096] loop2: detected capacity change from 0 to 32768 [ 75.837933][ T5095] [ 75.837933][ T5095] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.837933][ T5095] [ 75.855463][ T5097] [ 75.855463][ T5097] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.855463][ T5097] [pid 5095] exit_group(0 [pid 5083] <... unlink resumed>) = 0 [pid 5095] <... exit_group resumed>) = ? [pid 5083] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5095] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=29 /* 0.29 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5097] <... mount resumed>) = 0 [pid 5082] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5097] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./1/binderfs") = 0 [pid 5097] <... openat resumed>) = 3 [pid 5082] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5097] chdir("./file0") = 0 [pid 5097] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5097] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5097] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5097] exit_group(0) = ? [pid 5097] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=30 /* 0.30 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./1/binderfs") = 0 [ 75.915124][ T62] [ 75.915124][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.915124][ T62] [ 75.935846][ T5096] [ 75.935846][ T5096] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.935846][ T5096] [ 75.951045][ T2481] [ 75.951045][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.951045][ T2481] [ 75.962013][ T2436] [pid 5080] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5096] <... mount resumed>) = 0 [pid 5096] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5096] chdir("./file0") = 0 [ 75.962013][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.962013][ T2436] [ 75.977918][ T2481] [ 75.977918][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.977918][ T2481] [ 75.979413][ T62] [ 75.979413][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 75.979413][ T62] [ 76.002230][ T5082] [ 76.002230][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.002230][ T5082] [pid 5096] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5096] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 76.026763][ T2436] [ 76.026763][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.026763][ T2436] [ 76.043898][ T5083] [ 76.043898][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.043898][ T5083] [ 76.055062][ T112] [ 76.055062][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.055062][ T112] [ 76.067734][ T111] [ 76.067734][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5096] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5096] exit_group(0) = ? [pid 5096] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=40 /* 0.40 s */} --- [pid 5081] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./1/binderfs") = 0 [pid 5081] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = 0 [ 76.067734][ T111] [ 76.068984][ T5082] [ 76.068984][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.068984][ T5082] [ 76.088114][ T111] [ 76.088114][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.088114][ T111] [ 76.088980][ T5083] [ 76.088980][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.088980][ T5083] [ 76.113431][ T5080] [ 76.113431][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.113431][ T5080] [pid 5082] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, [pid 5083] <... umount2 resumed>) = 0 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] getdents64(4, [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] newfstatat(AT_FDCWD, "./1/file0", [pid 5082] close(4 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] <... close resumed>) = 0 [pid 5083] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] rmdir("./1/file0" [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5083] getdents64(4, [pid 5082] getdents64(3, [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] getdents64(4, [pid 5082] close(3 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... close resumed>) = 0 [pid 5083] close(4 [pid 5082] rmdir("./1" [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./1/file0") = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./1") = 0 [pid 5083] mkdir("./2", 0777) = 0 [pid 5082] mkdir("./2", 0777 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 76.131762][ T62] [ 76.131762][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.131762][ T62] [ 76.142900][ T5080] [ 76.142900][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.142900][ T5080] [ 76.154347][ T62] [ 76.154347][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.154347][ T62] [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5079] close(3) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... umount2 resumed>) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... openat resumed>) = 3 [pid 5081] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5098 attached [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5098] set_robust_list(0x55557f81b660, 24 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5098 [pid 5081] newfstatat(AT_FDCWD, "./1/file0", [pid 5098] <... set_robust_list resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5098] chdir("./2" [pid 5081] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5098] <... chdir resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./1/file0", [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5098] <... prctl resumed>) = 0 [pid 5098] setpgid(0, 0 [pid 5081] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5098] <... setpgid resumed>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] newfstatat(4, "", [pid 5080] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5081] getdents64(4, [pid 5080] newfstatat(4, "", [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5098] <... openat resumed>) = 3 [pid 5081] getdents64(4, [pid 5080] getdents64(4, [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5098] write(3, "1000", 4 [pid 5081] close(4 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5098] <... write resumed>) = 4 [pid 5081] <... close resumed>) = 0 [pid 5080] getdents64(4, [pid 5081] rmdir("./1/file0" [pid 5098] close(3) = 0 [ 76.181824][ T5081] [ 76.181824][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.181824][ T5081] [ 76.193107][ T112] [ 76.193107][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.193107][ T112] [ 76.206272][ T5081] [ 76.206272][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 76.206272][ T5081] [pid 5098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5098] memfd_create("syzkaller", 0 [pid 5081] getdents64(3, [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5080] close(4 [pid 5098] <... memfd_create resumed>) = 3 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5081] <... close resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5081] rmdir("./1" [pid 5080] rmdir("./1/file0" [pid 5081] <... rmdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5081] mkdir("./2", 0777 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] rmdir("./1" [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5080] mkdir("./2", 0777 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5080] <... mkdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached [pid 5099] set_robust_list(0x55557f81b660, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5099] chdir("./2") = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] write(3, "1000", 4) = 4 [pid 5099] close(3) = 0 [pid 5099] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5099] memfd_create("syzkaller", 0) = 3 [pid 5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5100 attached , child_tidptr=0x55557f81b650) = 5100 [pid 5100] set_robust_list(0x55557f81b660, 24) = 0 [pid 5100] chdir("./2") = 0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5100] setpgid(0, 0) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1000", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5100] memfd_create("syzkaller", 0) = 3 [pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5081] <... ioctl resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached [pid 5080] close(3 [pid 5101] set_robust_list(0x55557f81b660, 24 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5101 [pid 5080] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5102 ./strace-static-x86_64: Process 5102 attached [pid 5101] <... set_robust_list resumed>) = 0 [pid 5102] set_robust_list(0x55557f81b660, 24 [pid 5101] chdir("./2") = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] <... set_robust_list resumed>) = 0 [pid 5101] setpgid(0, 0 [pid 5102] chdir("./2") = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] <... setpgid resumed>) = 0 [pid 5102] setpgid(0, 0) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] <... close resumed>) = 0 [pid 5102] symlink("/dev/binderfs", "./binderfs" [pid 5101] <... openat resumed>) = 3 [pid 5101] write(3, "1000", 4) = 4 [pid 5102] <... symlink resumed>) = 0 [pid 5101] close(3) = 0 [pid 5102] memfd_create("syzkaller", 0 [pid 5101] symlink("/dev/binderfs", "./binderfs" [pid 5102] <... memfd_create resumed>) = 3 [pid 5101] <... symlink resumed>) = 0 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5101] memfd_create("syzkaller", 0) = 3 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [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"..., 16777216 [pid 5101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5098] <... write resumed>) = 16777216 [pid 5098] munmap(0x7f5a20600000, 138412032) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5098] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5098] close(3) = 0 [pid 5098] close(4) = 0 [pid 5098] mkdir("./file0", 0777) = 0 [ 77.367619][ T5098] loop0: detected capacity change from 0 to 32768 [pid 5098] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 77.423426][ T5098] [ 77.423426][ T5098] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.423426][ T5098] [pid 5098] chdir("./file0" [pid 5100] <... write resumed>) = 16777216 [pid 5098] <... chdir resumed>) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5100] munmap(0x7f5a20600000, 138412032 [pid 5098] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5098] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5098] exit_group(0) = ? [pid 5098] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=29 /* 0.29 s */} --- [pid 5079] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./2/binderfs") = 0 [pid 5079] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5100] <... munmap resumed>) = 0 [pid 5100] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 77.570320][ T2436] [ 77.570320][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.570320][ T2436] [ 77.607594][ T2436] [ 77.607594][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.607594][ T2436] [pid 5100] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5100] close(3) = 0 [ 77.619995][ T5100] loop3: detected capacity change from 0 to 32768 [ 77.631309][ T5079] [ 77.631309][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.631309][ T5079] [pid 5100] close(4) = 0 [pid 5100] mkdir("./file0", 0777) = 0 [pid 5101] <... write resumed>) = 16777216 [pid 5100] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5099] <... write resumed>) = 16777216 [pid 5101] munmap(0x7f5a20600000, 138412032 [pid 5099] munmap(0x7f5a20600000, 138412032 [pid 5079] <... umount2 resumed>) = 0 [ 77.667451][ T112] [ 77.667451][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.667451][ T112] [ 77.683297][ T5079] [ 77.683297][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.683297][ T5079] [pid 5101] <... munmap resumed>) = 0 [pid 5099] <... munmap resumed>) = 0 [pid 5079] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5099] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5099] ioctl(4, LOOP_SET_FD, 3 [pid 5079] newfstatat(AT_FDCWD, "./2/file0", [pid 5099] <... ioctl resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5101] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5100] <... mount resumed>) = 0 [pid 5079] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5101] <... openat resumed>) = 4 [pid 5100] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5101] ioctl(4, LOOP_SET_FD, 3 [pid 5100] chdir("./file0" [pid 5079] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5100] <... chdir resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5100] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5101] <... ioctl resumed>) = 0 [pid 5099] close(3 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./2/file0" [pid 5100] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5101] close(3 [pid 5099] close(4 [pid 5079] getdents64(3, [pid 5101] <... close resumed>) = 0 [pid 5100] openat(AT_FDCWD, ".", O_RDONLY [pid 5099] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5101] close(4 [pid 5099] mkdir("./file0", 0777 [pid 5079] close(3 [pid 5101] <... close resumed>) = 0 [pid 5099] <... mkdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5101] mkdir("./file0", 0777 [pid 5099] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] rmdir("./2" [pid 5101] <... mkdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./3", 0777 [pid 5100] <... openat resumed>) = 4 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5101] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5100] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 77.738621][ T5100] [ 77.738621][ T5100] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.738621][ T5100] [ 77.759233][ T5099] loop4: detected capacity change from 0 to 32768 [ 77.770410][ T5101] loop2: detected capacity change from 0 to 32768 [pid 5100] exit_group(0) = ? [pid 5102] <... write resumed>) = 16777216 [pid 5102] munmap(0x7f5a20600000, 138412032 [pid 5100] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=28 /* 0.28 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5102] <... munmap resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5099] <... mount resumed>) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5099] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 77.828830][ T5099] [ 77.828830][ T5099] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.828830][ T5099] [pid 5082] unlink("./2/binderfs") = 0 [pid 5082] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5099] chdir("./file0") = 0 [pid 5102] <... openat resumed>) = 4 [pid 5099] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5102] ioctl(4, LOOP_SET_FD, 3 [pid 5099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] openat(AT_FDCWD, ".", O_RDONLY [pid 5102] <... ioctl resumed>) = 0 [pid 5102] close(3 [pid 5101] <... mount resumed>) = 0 [pid 5099] <... openat resumed>) = 4 [pid 5102] <... close resumed>) = 0 [pid 5101] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5099] getdents64(4, [pid 5102] close(4) = 0 [pid 5101] <... openat resumed>) = 3 [pid 5102] mkdir("./file0", 0777 [pid 5101] chdir("./file0" [pid 5102] <... mkdir resumed>) = 0 [pid 5102] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5101] <... chdir resumed>) = 0 [pid 5099] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5099] exit_group(0 [pid 5101] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5099] <... exit_group resumed>) = ? [pid 5101] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5099] +++ exited with 0 +++ [pid 5101] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=36 /* 0.36 s */} --- [pid 5101] <... openat resumed>) = 4 [pid 5083] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5101] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5101] exit_group(0 [pid 5083] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5101] <... exit_group resumed>) = ? [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5101] +++ exited with 0 +++ [pid 5083] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./2/binderfs" [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=22 /* 0.22 s */} --- [ 77.878415][ T5101] [ 77.878415][ T5101] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.878415][ T5101] [ 77.890754][ T2481] [ 77.890754][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.890754][ T2481] [ 77.908364][ T5102] loop1: detected capacity change from 0 to 32768 [pid 5083] <... unlink resumed>) = 0 [pid 5081] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./2/binderfs") = 0 [pid 5081] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5102] <... mount resumed>) = 0 [pid 5102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 77.945519][ T5102] [ 77.945519][ T5102] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.945519][ T5102] [ 77.947481][ T2481] [ 77.947481][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.947481][ T2481] [ 77.972138][ T2436] [ 77.972138][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.972138][ T2436] [ 77.992515][ T62] [pid 5102] chdir("./file0") = 0 [ 77.992515][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 77.992515][ T62] [ 78.017498][ T2436] [ 78.017498][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.017498][ T2436] [ 78.019152][ T5082] [ 78.019152][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.019152][ T5082] [ 78.039359][ T62] [pid 5102] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5102] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5102] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 78.039359][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.039359][ T62] [ 78.064786][ T112] [ 78.064786][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.064786][ T112] [ 78.076109][ T111] [ 78.076109][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.076109][ T111] [ 78.077020][ T5081] [ 78.077020][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5102] exit_group(0) = ? [pid 5102] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5080] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./2/binderfs") = 0 [ 78.077020][ T5081] [ 78.097683][ T5083] [ 78.097683][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.097683][ T5083] [ 78.109215][ T5082] [ 78.109215][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.109215][ T5082] [ 78.131082][ T5083] [ 78.131082][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.131082][ T5083] [ 78.141960][ T2481] [pid 5080] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./2/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3 [pid 5083] <... umount2 resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5083] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] rmdir("./2" [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... rmdir resumed>) = 0 [pid 5083] newfstatat(AT_FDCWD, "./2/file0", [pid 5082] mkdir("./3", 0777 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5083] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./2/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./2") = 0 [pid 5083] mkdir("./3", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 78.141960][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.141960][ T2481] [ 78.146053][ T5081] [ 78.146053][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.146053][ T5081] [ 78.167244][ T2481] [ 78.167244][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.167244][ T2481] [ 78.201115][ T112] [ 78.201115][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.201115][ T112] [ 78.204389][ T5080] [ 78.204389][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.204389][ T5080] [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] <... umount2 resumed>) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5081] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [ 78.253110][ T111] [ 78.253110][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.253110][ T111] [pid 5081] newfstatat(AT_FDCWD, "./2/file0", [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5103 [pid 5081] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5103 attached [pid 5081] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5103] set_robust_list(0x55557f81b660, 24) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5103] chdir("./3" [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5103] <... chdir resumed>) = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] getdents64(4, [pid 5103] <... prctl resumed>) = 0 [pid 5103] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5103] <... setpgid resumed>) = 0 [pid 5081] getdents64(4, [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4 [pid 5103] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [ 78.302756][ T5080] [ 78.302756][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 78.302756][ T5080] [pid 5103] write(3, "1000", 4 [pid 5081] rmdir("./2/file0" [pid 5080] <... umount2 resumed>) = 0 [pid 5103] <... write resumed>) = 4 [pid 5103] close(3 [pid 5081] <... rmdir resumed>) = 0 [pid 5080] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5103] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5103] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5103] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5080] newfstatat(AT_FDCWD, "./2/file0", [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./2" [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] <... rmdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] mkdir("./3", 0777) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5103] memfd_create("syzkaller", 0 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5080] getdents64(4, [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5103] <... memfd_create resumed>) = 3 [pid 5080] getdents64(4, [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5103] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] rmdir("./2/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./2") = 0 [pid 5080] mkdir("./3", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5082] <... ioctl resumed>) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5083] close(3 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5104 attached [pid 5083] <... close resumed>) = 0 [pid 5104] set_robust_list(0x55557f81b660, 24 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5104] <... set_robust_list resumed>) = 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5104 [pid 5104] chdir("./3") = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5105 [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] memfd_create("syzkaller", 0) = 3 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 ./strace-static-x86_64: Process 5105 attached [pid 5105] set_robust_list(0x55557f81b660, 24) = 0 [pid 5105] chdir("./3") = 0 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5105] setpgid(0, 0) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5105] write(3, "1000", 4) = 4 [pid 5105] close(3) = 0 [pid 5105] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5105] memfd_create("syzkaller", 0) = 3 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5106 ./strace-static-x86_64: Process 5106 attached [pid 5106] set_robust_list(0x55557f81b660, 24) = 0 [pid 5106] chdir("./3") = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] setpgid(0, 0) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5106] write(3, "1000", 4) = 4 [pid 5106] close(3) = 0 [pid 5106] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5106] memfd_create("syzkaller", 0) = 3 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5106] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5107 attached [pid 5107] set_robust_list(0x55557f81b660, 24 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5107 [pid 5107] <... set_robust_list resumed>) = 0 [pid 5107] chdir("./3") = 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] memfd_create("syzkaller", 0) = 3 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [pid 5106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5103] <... write resumed>) = 16777216 [pid 5103] munmap(0x7f5a20600000, 138412032) = 0 [pid 5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5103] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5103] close(3) = 0 [pid 5103] close(4) = 0 [pid 5103] mkdir("./file0", 0777) = 0 [pid 5103] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 79.580469][ T5103] loop0: detected capacity change from 0 to 32768 [pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5103] <... mount resumed>) = 0 [pid 5103] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5105] <... write resumed>) = 16777216 [pid 5103] <... openat resumed>) = 3 [pid 5103] chdir("./file0") = 0 [pid 5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5103] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 79.659091][ T5103] [ 79.659091][ T5103] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.659091][ T5103] [pid 5103] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5105] munmap(0x7f5a20600000, 138412032 [pid 5103] exit_group(0) = ? [pid 5104] <... write resumed>) = 16777216 [pid 5103] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=27 /* 0.27 s */} --- [pid 5105] <... munmap resumed>) = 0 [pid 5104] munmap(0x7f5a20600000, 138412032 [pid 5079] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, [pid 5105] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5105] <... openat resumed>) = 4 [pid 5079] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5105] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5104] <... munmap resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./3/binderfs" [pid 5105] <... ioctl resumed>) = 0 [pid 5105] close(3 [pid 5079] <... unlink resumed>) = 0 [pid 5105] <... close resumed>) = 0 [pid 5079] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5105] close(4) = 0 [pid 5105] mkdir("./file0", 0777) = 0 [pid 5105] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5104] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 79.776872][ T5105] loop4: detected capacity change from 0 to 32768 [ 79.810089][ T2481] [ 79.810089][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.810089][ T2481] [pid 5104] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5104] close(3) = 0 [pid 5104] close(4) = 0 [pid 5104] mkdir("./file0", 0777 [pid 5105] <... mount resumed>) = 0 [pid 5105] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5105] chdir("./file0") = 0 [pid 5104] <... mkdir resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5105] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5105] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5104] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5105] exit_group(0) = ? [pid 5105] +++ exited with 0 +++ [ 79.824592][ T5104] loop3: detected capacity change from 0 to 32768 [ 79.838146][ T2481] [ 79.838146][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.838146][ T2481] [ 79.850888][ T5105] [ 79.850888][ T5105] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.850888][ T5105] [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5083] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5106] <... write resumed>) = 16777216 [pid 5106] munmap(0x7f5a20600000, 138412032 [pid 5083] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./3/binderfs" [pid 5104] <... mount resumed>) = 0 [pid 5083] <... unlink resumed>) = 0 [pid 5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5104] <... openat resumed>) = 3 [ 79.898553][ T112] [ 79.898553][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.898553][ T112] [ 79.916318][ T5104] [ 79.916318][ T5104] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.916318][ T5104] [ 79.945415][ T5079] [pid 5106] <... munmap resumed>) = 0 [pid 5104] chdir("./file0" [pid 5106] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5104] <... chdir resumed>) = 0 [pid 5106] <... openat resumed>) = 4 [pid 5106] ioctl(4, LOOP_SET_FD, 3 [pid 5104] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 79.945415][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.945415][ T5079] [ 79.957239][ T2436] [ 79.957239][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.957239][ T2436] [ 79.967977][ T5079] [ 79.967977][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.967977][ T5079] [ 79.982047][ T5106] loop2: detected capacity change from 0 to 32768 [ 79.991401][ T2436] [pid 5104] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5079] <... umount2 resumed>) = 0 [pid 5104] getdents64(4, [pid 5079] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5104] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5104] exit_group(0 [pid 5079] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5104] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5106] <... ioctl resumed>) = 0 [pid 5106] close(3) = 0 [pid 5104] +++ exited with 0 +++ [pid 5106] close(4) = 0 [pid 5106] mkdir("./file0", 0777) = 0 [pid 5106] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=34 /* 0.34 s */} --- [pid 5082] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 79.991401][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 79.991401][ T2436] [ 80.016770][ T5083] [ 80.016770][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.016770][ T5083] [ 80.030930][ T5106] [ 80.030930][ T5106] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.030930][ T5106] [pid 5082] getdents64(3, [pid 5079] <... openat resumed>) = 4 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] newfstatat(4, "", [pid 5082] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(4, [pid 5082] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./3/binderfs") = 0 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5082] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./3/file0") = 0 [pid 5106] <... mount resumed>) = 0 [pid 5106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5106] chdir("./file0") = 0 [pid 5106] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5106] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5106] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5106] exit_group(0) = ? [pid 5106] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=30 /* 0.30 s */} --- [pid 5081] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./3/binderfs") = 0 [ 80.047910][ T112] [ 80.047910][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.047910][ T112] [ 80.067025][ T2436] [ 80.067025][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.067025][ T2436] [ 80.085189][ T5083] [ 80.085189][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.085189][ T5083] [ 80.096352][ T2436] [pid 5081] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [ 80.096352][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.096352][ T2436] [ 80.107508][ T2481] [ 80.107508][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.107508][ T2481] [ 80.119514][ T2481] [ 80.119514][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.119514][ T2481] [ 80.132348][ T112] [ 80.132348][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.132348][ T112] [ 80.137809][ T111] [pid 5079] rmdir("./3" [pid 5107] <... write resumed>) = 16777216 [pid 5083] <... umount2 resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5107] munmap(0x7f5a20600000, 138412032 [pid 5083] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] mkdir("./4", 0777 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... mkdir resumed>) = 0 [pid 5083] newfstatat(AT_FDCWD, "./3/file0", [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5107] <... munmap resumed>) = 0 [pid 5083] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = 0 [pid 5083] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... openat resumed>) = 4 [pid 5107] <... openat resumed>) = 4 [pid 5082] <... umount2 resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] ioctl(4, LOOP_SET_FD, 3 [ 80.137809][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.137809][ T111] [ 80.153526][ T5082] [ 80.153526][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.153526][ T5082] [ 80.165097][ T5081] [ 80.165097][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.165097][ T5081] [ 80.178369][ T5081] [ 80.178369][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.178369][ T5081] [ 80.182430][ T5082] [ 80.182430][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.182430][ T5082] [pid 5082] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] newfstatat(4, "", [pid 5081] newfstatat(AT_FDCWD, "./3/file0", [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] getdents64(4, [pid 5081] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5107] <... ioctl resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] close(3 [pid 5083] getdents64(4, [pid 5082] newfstatat(AT_FDCWD, "./3/file0", [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5107] <... close resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5107] close(4 [pid 5083] close(4 [pid 5082] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5083] rmdir("./3/file0" [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(4, "", [pid 5083] <... rmdir resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, [pid 5081] getdents64(4, [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] close(3 [pid 5081] getdents64(4, [pid 5083] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] rmdir("./3" [pid 5081] close(4 [pid 5083] <... rmdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5083] mkdir("./4", 0777 [pid 5081] rmdir("./3/file0" [pid 5083] <... mkdir resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] getdents64(3, [pid 5083] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] close(3) = 0 [pid 5081] rmdir("./3") = 0 [pid 5081] mkdir("./4", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5107] <... close resumed>) = 0 [pid 5082] <... openat resumed>) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 80.206771][ T5107] loop1: detected capacity change from 0 to 32768 [pid 5082] getdents64(4, [pid 5081] <... openat resumed>) = 3 [pid 5107] mkdir("./file0", 0777 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5107] <... mkdir resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./3/file0" [pid 5107] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... rmdir resumed>) = 0 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./3") = 0 [pid 5082] mkdir("./4", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5107] <... mount resumed>) = 0 [pid 5107] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5107] chdir("./file0") = 0 [pid 5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5107] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5107] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5107] exit_group(0) = ? [pid 5107] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=37 /* 0.37 s */} --- [pid 5080] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 80.307089][ T5107] [ 80.307089][ T5107] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.307089][ T5107] [pid 5080] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./3/binderfs") = 0 [ 80.394195][ T2436] [ 80.394195][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.394195][ T2436] [ 80.424177][ T2436] [ 80.424177][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.424177][ T2436] [ 80.457436][ T5080] [ 80.457436][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.457436][ T5080] [ 80.468505][ T5080] [ 80.468505][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.468505][ T5080] [ 80.497418][ T112] [ 80.497418][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 80.497418][ T112] [pid 5080] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3./strace-static-x86_64: Process 5108 attached ) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5108 [pid 5108] set_robust_list(0x55557f81b660, 24 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5108] <... set_robust_list resumed>) = 0 [pid 5108] chdir("./4"./strace-static-x86_64: Process 5109 attached [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5109 [pid 5108] <... chdir resumed>) = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5109] set_robust_list(0x55557f81b660, 24 [pid 5108] setpgid(0, 0 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5108] <... setpgid resumed>) = 0 [pid 5109] chdir("./4") = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5108] <... openat resumed>) = 3 [pid 5109] <... prctl resumed>) = 0 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5108] write(3, "1000", 4 [pid 5109] write(3, "1000", 4 [pid 5108] <... write resumed>) = 4 [pid 5109] <... write resumed>) = 4 [pid 5108] close(3 [pid 5109] close(3 [pid 5108] <... close resumed>) = 0 [pid 5109] <... close resumed>) = 0 [pid 5108] symlink("/dev/binderfs", "./binderfs" [pid 5109] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5108] <... symlink resumed>) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5109] memfd_create("syzkaller", 0 [pid 5108] memfd_create("syzkaller", 0 [pid 5109] <... memfd_create resumed>) = 3 [pid 5082] close(3 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] <... memfd_create resumed>) = 3 [pid 5082] <... close resumed>) = 0 [pid 5109] <... mmap resumed>) = 0x7f5a20600000 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5110 ./strace-static-x86_64: Process 5110 attached [pid 5110] set_robust_list(0x55557f81b660, 24) = 0 [pid 5110] chdir("./4" [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached [pid 5110] <... chdir resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5111 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] set_robust_list(0x55557f81b660, 24 [pid 5110] <... prctl resumed>) = 0 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] setpgid(0, 0 [pid 5111] chdir("./4" [pid 5110] <... setpgid resumed>) = 0 [pid 5111] <... chdir resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] <... openat resumed>) = 3 [pid 5111] <... prctl resumed>) = 0 [pid 5110] write(3, "1000", 4 [pid 5111] setpgid(0, 0 [pid 5110] <... write resumed>) = 4 [pid 5111] <... setpgid resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] close(3 [pid 5111] <... openat resumed>) = 3 [pid 5110] <... close resumed>) = 0 [pid 5111] write(3, "1000", 4 [pid 5110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5111] <... write resumed>) = 4 [pid 5111] close(3) = 0 [pid 5111] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5110] memfd_create("syzkaller", 0 [pid 5111] memfd_create("syzkaller", 0) = 3 [pid 5110] <... memfd_create resumed>) = 3 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./3/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./3") = 0 [pid 5080] mkdir("./4", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [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"..., 16777216 [pid 5109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5112 attached , child_tidptr=0x55557f81b650) = 5112 [pid 5112] set_robust_list(0x55557f81b660, 24) = 0 [pid 5112] chdir("./4") = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5112] setpgid(0, 0) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5112] write(3, "1000", 4) = 4 [pid 5112] close(3) = 0 [pid 5112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5112] memfd_create("syzkaller", 0) = 3 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5109] <... write resumed>) = 16777216 [pid 5108] <... write resumed>) = 16777216 [pid 5109] munmap(0x7f5a20600000, 138412032 [pid 5108] munmap(0x7f5a20600000, 138412032 [pid 5109] <... munmap resumed>) = 0 [pid 5109] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5109] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5109] close(3 [pid 5108] <... munmap resumed>) = 0 [pid 5109] <... close resumed>) = 0 [pid 5109] close(4 [pid 5111] <... write resumed>) = 16777216 [pid 5109] <... close resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 81.658769][ T5109] loop4: detected capacity change from 0 to 32768 [pid 5109] mkdir("./file0", 0777 [pid 5111] munmap(0x7f5a20600000, 138412032 [pid 5108] <... openat resumed>) = 4 [pid 5108] ioctl(4, LOOP_SET_FD, 3 [pid 5109] <... mkdir resumed>) = 0 [pid 5108] <... ioctl resumed>) = 0 [pid 5109] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5108] close(3) = 0 [pid 5108] close(4) = 0 [pid 5108] mkdir("./file0", 0777) = 0 [ 81.701541][ T5108] loop0: detected capacity change from 0 to 32768 [ 81.726141][ T5109] [ 81.726141][ T5109] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.726141][ T5109] [ 81.749275][ T5108] [pid 5108] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5111] <... munmap resumed>) = 0 [pid 5109] <... mount resumed>) = 0 [pid 5109] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5108] <... mount resumed>) = 0 [pid 5109] chdir("./file0") = 0 [pid 5109] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5109] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5108] <... openat resumed>) = 3 [pid 5109] getdents64(4, [pid 5108] chdir("./file0" [pid 5109] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5108] <... chdir resumed>) = 0 [pid 5109] exit_group(0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5109] <... exit_group resumed>) = ? [pid 5108] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5109] +++ exited with 0 +++ [pid 5111] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5108] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=21 /* 0.21 s */} --- [pid 5083] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5111] <... openat resumed>) = 4 [pid 5108] <... openat resumed>) = 4 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 81.749275][ T5108] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.749275][ T5108] [pid 5083] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5111] ioctl(4, LOOP_SET_FD, 3 [pid 5108] getdents64(4, [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./4/binderfs") = 0 [pid 5083] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5108] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5108] exit_group(0) = ? [pid 5110] <... write resumed>) = 16777216 [pid 5108] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5111] <... ioctl resumed>) = 0 [pid 5111] close(3) = 0 [pid 5111] close(4) = 0 [pid 5111] mkdir("./file0", 0777) = 0 [ 81.801293][ T5111] loop2: detected capacity change from 0 to 32768 [ 81.814791][ T2481] [ 81.814791][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.814791][ T2481] [ 81.839181][ T2481] [ 81.839181][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.839181][ T2481] [pid 5111] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5110] munmap(0x7f5a20600000, 138412032 [pid 5079] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./4/binderfs") = 0 [ 81.854790][ T5111] [ 81.854790][ T5111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.854790][ T5111] [ 81.897272][ T2436] [ 81.897272][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.897272][ T2436] [ 81.908010][ T2436] [ 81.908010][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.908010][ T2436] [ 81.908817][ T112] [ 81.908817][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.908817][ T112] [ 81.920624][ T111] [ 81.920624][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.920624][ T111] [ 81.940314][ T5079] [pid 5079] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5111] <... mount resumed>) = 0 [pid 5111] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5111] chdir("./file0") = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5111] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5111] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5111] exit_group(0) = ? [pid 5110] <... munmap resumed>) = 0 [pid 5111] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=34 /* 0.34 s */} --- [pid 5081] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 81.940314][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.940314][ T5079] [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5110] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5110] <... openat resumed>) = 4 [pid 5081] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5110] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5081] unlink("./4/binderfs" [pid 5079] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] <... unlink resumed>) = 0 [pid 5079] newfstatat(AT_FDCWD, "./4/file0", [pid 5081] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 81.982700][ T5083] [ 81.982700][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.982700][ T5083] [ 81.982893][ T5079] [ 81.982893][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 81.982893][ T5079] [ 81.996766][ T5110] loop3: detected capacity change from 0 to 32768 [ 82.012932][ T5083] [ 82.012932][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.012932][ T5083] [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, [pid 5083] <... umount2 resumed>) = 0 [pid 5110] <... ioctl resumed>) = 0 [pid 5110] close(3) = 0 [pid 5083] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./4/file0", [pid 5079] <... close resumed>) = 0 [pid 5110] close(4) = 0 [pid 5110] mkdir("./file0", 0777 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] rmdir("./4/file0") = 0 [pid 5083] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] close(3 [pid 5083] newfstatat(4, "", [pid 5079] <... close resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] rmdir("./4" [pid 5083] getdents64(4, [pid 5110] <... mkdir resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] <... rmdir resumed>) = 0 [pid 5083] getdents64(4, [pid 5079] mkdir("./5", 0777 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5110] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 82.034095][ T2481] [ 82.034095][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.034095][ T2481] [ 82.044931][ T2481] [ 82.044931][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.044931][ T2481] [ 82.058026][ T112] [ 82.058026][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.058026][ T112] [ 82.069090][ T5081] [ 82.069090][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.069090][ T5081] [pid 5083] close(4 [pid 5079] <... mkdir resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] rmdir("./4/file0" [pid 5079] <... openat resumed>) = 3 [pid 5083] <... rmdir resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./4") = 0 [pid 5083] mkdir("./5", 0777) = 0 [ 82.094473][ T5081] [ 82.094473][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.094473][ T5081] [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./4/file0") = 0 [ 82.140502][ T5110] [ 82.140502][ T5110] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.140502][ T5110] [pid 5110] <... mount resumed>) = 0 [pid 5081] getdents64(3, [pid 5110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5110] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5110] chdir("./file0" [pid 5081] <... close resumed>) = 0 [pid 5110] <... chdir resumed>) = 0 [pid 5081] rmdir("./4" [pid 5110] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5110] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./5", 0777 [pid 5110] getdents64(4, [pid 5081] <... mkdir resumed>) = 0 [pid 5110] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5110] exit_group(0 [pid 5081] <... openat resumed>) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5110] <... exit_group resumed>) = ? [pid 5110] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=32 /* 0.32 s */} --- [pid 5082] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./4/binderfs") = 0 [ 82.243582][ T2436] [ 82.243582][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.243582][ T2436] [ 82.293631][ T2436] [ 82.293631][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.293631][ T2436] [ 82.347711][ T111] [ 82.347711][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.347711][ T111] [ 82.377261][ T5082] [ 82.377261][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.377261][ T5082] [pid 5082] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5082] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 82.402503][ T5082] [ 82.402503][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.402503][ T5082] [pid 5082] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./4/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./4") = 0 [pid 5082] mkdir("./5", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5112] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 5113 attached [pid 5083] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5113 [pid 5113] set_robust_list(0x55557f81b660, 24 [pid 5083] <... close resumed>) = 0 [pid 5113] <... set_robust_list resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5113] chdir("./5"./strace-static-x86_64: Process 5114 attached ) = 0 [pid 5112] munmap(0x7f5a20600000, 138412032 [pid 5114] set_robust_list(0x55557f81b660, 24 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5114 [pid 5081] <... ioctl resumed>) = 0 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5113] <... prctl resumed>) = 0 [pid 5114] chdir("./5" [pid 5113] setpgid(0, 0) = 0 [pid 5081] close(3 [pid 5114] <... chdir resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... close resumed>) = 0 [pid 5114] <... prctl resumed>) = 0 [pid 5113] <... openat resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5115 attached [pid 5114] setpgid(0, 0 [pid 5113] write(3, "1000", 4 [pid 5115] set_robust_list(0x55557f81b660, 24 [pid 5114] <... setpgid resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5115 [pid 5113] <... write resumed>) = 4 [pid 5115] <... set_robust_list resumed>) = 0 [pid 5113] close(3 [pid 5115] chdir("./5" [pid 5113] <... close resumed>) = 0 [pid 5113] symlink("/dev/binderfs", "./binderfs" [pid 5115] <... chdir resumed>) = 0 [pid 5113] <... symlink resumed>) = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] memfd_create("syzkaller", 0 [pid 5115] <... prctl resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5115] setpgid(0, 0 [pid 5114] <... openat resumed>) = 3 [pid 5113] <... memfd_create resumed>) = 3 [pid 5115] <... setpgid resumed>) = 0 [pid 5114] write(3, "1000", 4 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5112] <... munmap resumed>) = 0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] <... mmap resumed>) = 0x7f5a20600000 [pid 5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5114] <... write resumed>) = 4 [pid 5114] close(3) = 0 [pid 5114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5112] <... openat resumed>) = 4 [pid 5112] ioctl(4, LOOP_SET_FD, 3 [pid 5115] <... openat resumed>) = 3 [pid 5114] memfd_create("syzkaller", 0) = 3 [pid 5115] write(3, "1000", 4 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5115] <... write resumed>) = 4 [pid 5114] <... mmap resumed>) = 0x7f5a20600000 [pid 5115] close(3) = 0 [pid 5115] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5115] memfd_create("syzkaller", 0 [pid 5112] <... ioctl resumed>) = 0 [pid 5112] close(3) = 0 [pid 5115] <... memfd_create resumed>) = 3 [pid 5112] close(4 [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5112] <... close resumed>) = 0 [pid 5115] <... mmap resumed>) = 0x7f5a20600000 [pid 5112] mkdir("./file0", 0777) = 0 [ 82.703620][ T5112] loop1: detected capacity change from 0 to 32768 [pid 5112] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 82.758641][ T5112] [ 82.758641][ T5112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.758641][ T5112] [pid 5112] chdir("./file0") = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5112] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5112] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5112] exit_group(0) = ? [pid 5112] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=39 /* 0.39 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./4/binderfs") = 0 [ 82.867373][ T11] [ 82.867373][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.867373][ T11] [ 82.907337][ T11] [ 82.907337][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.907337][ T11] [pid 5080] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5116 attached , child_tidptr=0x55557f81b650) = 5116 [ 82.938216][ T112] [ 82.938216][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.938216][ T112] [ 82.967629][ T5080] [ 82.967629][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 82.967629][ T5080] [pid 5116] set_robust_list(0x55557f81b660, 24) = 0 [pid 5116] chdir("./5") = 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] memfd_create("syzkaller", 0) = 3 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 83.017882][ T5080] [ 83.017882][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 83.017882][ T5080] [pid 5080] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./4/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./4") = 0 [pid 5080] mkdir("./5", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [pid 5115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5117 attached , child_tidptr=0x55557f81b650) = 5117 [pid 5117] set_robust_list(0x55557f81b660, 24) = 0 [pid 5117] chdir("./5") = 0 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5117] setpgid(0, 0) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] write(3, "1000", 4) = 4 [pid 5117] close(3) = 0 [pid 5117] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5117] memfd_create("syzkaller", 0) = 3 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5113] <... write resumed>) = 16777216 [pid 5113] munmap(0x7f5a20600000, 138412032 [pid 5114] <... write resumed>) = 16777216 [pid 5114] munmap(0x7f5a20600000, 138412032 [pid 5113] <... munmap resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5113] ioctl(4, LOOP_SET_FD, 3 [pid 5115] <... write resumed>) = 16777216 [pid 5115] munmap(0x7f5a20600000, 138412032 [pid 5114] <... munmap resumed>) = 0 [pid 5113] <... ioctl resumed>) = 0 [pid 5113] close(3 [pid 5114] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5113] <... close resumed>) = 0 [pid 5113] close(4 [pid 5114] <... openat resumed>) = 4 [pid 5113] <... close resumed>) = 0 [pid 5114] ioctl(4, LOOP_SET_FD, 3 [pid 5115] <... munmap resumed>) = 0 [pid 5114] <... ioctl resumed>) = 0 [pid 5113] mkdir("./file0", 0777 [pid 5114] close(3 [pid 5113] <... mkdir resumed>) = 0 [pid 5114] <... close resumed>) = 0 [pid 5114] close(4) = 0 [pid 5115] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5114] mkdir("./file0", 0777 [pid 5113] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5115] <... openat resumed>) = 4 [ 83.951342][ T5113] loop0: detected capacity change from 0 to 32768 [ 83.990445][ T5114] loop4: detected capacity change from 0 to 32768 [pid 5114] <... mkdir resumed>) = 0 [pid 5115] ioctl(4, LOOP_SET_FD, 3 [pid 5114] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5115] <... ioctl resumed>) = 0 [pid 5115] close(3) = 0 [pid 5115] close(4) = 0 [pid 5115] mkdir("./file0", 0777 [pid 5113] <... mount resumed>) = 0 [pid 5115] <... mkdir resumed>) = 0 [pid 5113] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5115] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5113] <... openat resumed>) = 3 [pid 5113] chdir("./file0") = 0 [pid 5113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5113] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5113] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 84.023157][ T5115] loop2: detected capacity change from 0 to 32768 [ 84.040947][ T5113] [ 84.040947][ T5113] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.040947][ T5113] [ 84.059278][ T5114] [ 84.059278][ T5114] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.059278][ T5114] [pid 5113] exit_group(0) = ? [pid 5113] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5114] <... mount resumed>) = 0 [pid 5114] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5079] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5114] chdir("./file0" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5114] <... chdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5114] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... openat resumed>) = 3 [pid 5114] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] newfstatat(3, "", [pid 5114] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5114] <... openat resumed>) = 4 [pid 5079] getdents64(3, [pid 5114] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5114] exit_group(0 [pid 5079] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5115] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5115] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5114] <... exit_group resumed>) = ? [pid 5079] unlink("./5/binderfs" [pid 5115] <... openat resumed>) = 3 [pid 5079] <... unlink resumed>) = 0 [pid 5115] chdir("./file0" [pid 5114] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=36 /* 0.36 s */} --- [pid 5079] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5115] <... chdir resumed>) = 0 [ 84.099000][ T5115] [ 84.099000][ T5115] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.099000][ T5115] [pid 5115] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5115] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5083] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5115] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5116] <... write resumed>) = 16777216 [pid 5115] exit_group(0 [pid 5083] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5115] <... exit_group resumed>) = ? [ 84.139959][ T2436] [ 84.139959][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.139959][ T2436] [pid 5116] munmap(0x7f5a20600000, 138412032 [pid 5115] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./5/binderfs") = 0 [pid 5083] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 84.181496][ T2436] [ 84.181496][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.181496][ T2436] [ 84.193053][ T11] [ 84.193053][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.193053][ T11] [ 84.204463][ T111] [ 84.204463][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.204463][ T111] [ 84.220208][ T5079] [ 84.220208][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.220208][ T5079] [pid 5081] newfstatat(3, "", [pid 5116] <... munmap resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [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"..., 16777216 [pid 5116] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5116] <... openat resumed>) = 4 [pid 5081] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5116] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./5/binderfs") = 0 [ 84.225904][ T11] [ 84.225904][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.225904][ T11] [ 84.241088][ T5079] [ 84.241088][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.241088][ T5079] [ 84.243184][ T112] [ 84.243184][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.243184][ T112] [ 84.260610][ T5116] loop3: detected capacity change from 0 to 32768 [ 84.272578][ T62] [ 84.272578][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5081] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = 0 [pid 5116] <... ioctl resumed>) = 0 [pid 5079] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5116] close(3) = 0 [pid 5079] newfstatat(AT_FDCWD, "./5/file0", [pid 5116] close(4 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5116] <... close resumed>) = 0 [pid 5116] mkdir("./file0", 0777) = 0 [pid 5079] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5116] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [ 84.272578][ T62] [ 84.283273][ T5083] [ 84.283273][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.283273][ T5083] [ 84.295148][ T5083] [ 84.295148][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.295148][ T5083] [ 84.296420][ T5116] [ 84.296420][ T5116] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.296420][ T5116] [ 84.305812][ T62] [ 84.305812][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.305812][ T62] [ 84.306210][ T5081] [pid 5079] rmdir("./5/file0") = 0 [pid 5116] <... mount resumed>) = 0 [pid 5079] getdents64(3, [pid 5116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5116] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5116] chdir("./file0" [pid 5079] <... close resumed>) = 0 [pid 5116] <... chdir resumed>) = 0 [pid 5079] rmdir("./5" [pid 5116] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5079] <... rmdir resumed>) = 0 [pid 5116] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5083] <... umount2 resumed>) = 0 [pid 5116] getdents64(4, [pid 5079] mkdir("./6", 0777 [pid 5116] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5116] exit_group(0 [pid 5079] <... mkdir resumed>) = 0 [pid 5116] <... exit_group resumed>) = ? [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5116] +++ exited with 0 +++ [pid 5083] newfstatat(AT_FDCWD, "./5/file0", [pid 5079] <... openat resumed>) = 3 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=27 /* 0.27 s */} --- [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... openat resumed>) = 4 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(4, "", [pid 5082] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... openat resumed>) = 3 [ 84.306210][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.306210][ T5081] [pid 5083] getdents64(4, [pid 5082] newfstatat(3, "", [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, [pid 5082] getdents64(3, [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] close(4 [pid 5082] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... close resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] rmdir("./5/file0" [pid 5082] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5083] <... rmdir resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] getdents64(3, [pid 5082] unlink("./5/binderfs" [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] <... unlink resumed>) = 0 [pid 5083] close(3 [pid 5082] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./5") = 0 [pid 5083] mkdir("./6", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./5/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./5") = 0 [ 84.405134][ T62] [ 84.405134][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.405134][ T62] [ 84.406280][ T5081] [ 84.406280][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.406280][ T5081] [ 84.428557][ T111] [ 84.428557][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.428557][ T111] [ 84.440966][ T62] [ 84.440966][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.440966][ T62] [pid 5081] mkdir("./6", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 84.491509][ T5082] [ 84.491509][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.491509][ T5082] [ 84.528066][ T112] [ 84.528066][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.528066][ T112] [ 84.545297][ T5082] [ 84.545297][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.545297][ T5082] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./5/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./5") = 0 [pid 5082] mkdir("./6", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5118 attached , child_tidptr=0x55557f81b650) = 5118 [pid 5118] set_robust_list(0x55557f81b660, 24) = 0 [pid 5118] chdir("./6") = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5118] setpgid(0, 0) = 0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5118] write(3, "1000", 4) = 4 [pid 5118] close(3) = 0 [pid 5118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5118] memfd_create("syzkaller", 0) = 3 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5117] <... write resumed>) = 16777216 [pid 5083] <... ioctl resumed>) = 0 [pid 5117] munmap(0x7f5a20600000, 138412032 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5119 attached [pid 5119] set_robust_list(0x55557f81b660, 24) = 0 [pid 5119] chdir("./6" [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5119 [pid 5081] <... ioctl resumed>) = 0 [pid 5119] <... chdir resumed>) = 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] memfd_create("syzkaller", 0 [pid 5081] close(3) = 0 [pid 5119] <... memfd_create resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] <... munmap resumed>) = 0 [pid 5119] <... mmap resumed>) = 0x7f5a20600000 [pid 5117] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5120 attached ) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5120 [pid 5117] ioctl(4, LOOP_SET_FD, 3 [pid 5120] set_robust_list(0x55557f81b660, 24) = 0 [pid 5120] chdir("./6") = 0 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5120] write(3, "1000", 4) = 4 [pid 5120] close(3) = 0 [pid 5120] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5120] memfd_create("syzkaller", 0) = 3 [pid 5117] <... ioctl resumed>) = 0 [pid 5117] close(3 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] <... close resumed>) = 0 [pid 5120] <... mmap resumed>) = 0x7f5a20600000 [pid 5117] close(4) = 0 [pid 5117] mkdir("./file0", 0777) = 0 [ 84.903832][ T5117] loop1: detected capacity change from 0 to 32768 [pid 5117] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5117] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5117] chdir("./file0") = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5117] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5117] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5117] exit_group(0) = ? [pid 5117] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=30 /* 0.30 s */} --- [pid 5080] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 84.997249][ T5117] [ 84.997249][ T5117] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 84.997249][ T5117] [pid 5080] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./5/binderfs") = 0 [pid 5080] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5121 ./strace-static-x86_64: Process 5121 attached [ 85.087939][ T2481] [ 85.087939][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 85.087939][ T2481] [ 85.117400][ T2481] [ 85.117400][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 85.117400][ T2481] [pid 5121] set_robust_list(0x55557f81b660, 24) = 0 [pid 5121] chdir("./6") = 0 [ 85.158005][ T111] [ 85.158005][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 85.158005][ T111] [ 85.187328][ T5080] [ 85.187328][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 85.187328][ T5080] [ 85.205968][ T5080] [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5121] setpgid(0, 0) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5121] write(3, "1000", 4 [pid 5080] <... umount2 resumed>) = 0 [pid 5121] <... write resumed>) = 4 [pid 5080] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5121] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5121] <... close resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5121] symlink("/dev/binderfs", "./binderfs" [pid 5080] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5121] <... symlink resumed>) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4 [pid 5121] memfd_create("syzkaller", 0 [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./5/file0" [pid 5121] <... memfd_create resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] getdents64(3, [pid 5121] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [ 85.205968][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 85.205968][ T5080] [pid 5080] close(3) = 0 [pid 5080] rmdir("./5") = 0 [pid 5080] mkdir("./6", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... openat resumed>) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [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"..., 16777216 [pid 5119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5122 ./strace-static-x86_64: Process 5122 attached [pid 5122] set_robust_list(0x55557f81b660, 24) = 0 [pid 5122] chdir("./6") = 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] memfd_create("syzkaller", 0) = 3 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5120] <... write resumed>) = 16777216 [pid 5118] <... write resumed>) = 16777216 [pid 5118] munmap(0x7f5a20600000, 138412032 [pid 5120] munmap(0x7f5a20600000, 138412032 [pid 5118] <... munmap resumed>) = 0 [pid 5120] <... munmap resumed>) = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5120] <... openat resumed>) = 4 [pid 5120] ioctl(4, LOOP_SET_FD, 3 [pid 5118] <... openat resumed>) = 4 [pid 5118] ioctl(4, LOOP_SET_FD, 3 [pid 5119] <... write resumed>) = 16777216 [pid 5120] <... ioctl resumed>) = 0 [pid 5118] <... ioctl resumed>) = 0 [pid 5120] close(3 [pid 5118] close(3 [pid 5120] <... close resumed>) = 0 [pid 5118] <... close resumed>) = 0 [pid 5120] close(4 [pid 5118] close(4 [pid 5120] <... close resumed>) = 0 [pid 5119] munmap(0x7f5a20600000, 138412032 [pid 5120] mkdir("./file0", 0777 [pid 5118] <... close resumed>) = 0 [ 85.968292][ T5118] loop0: detected capacity change from 0 to 32768 [ 85.975202][ T5120] loop2: detected capacity change from 0 to 32768 [pid 5120] <... mkdir resumed>) = 0 [pid 5118] mkdir("./file0", 0777 [pid 5120] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5118] <... mkdir resumed>) = 0 [pid 5118] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5119] <... munmap resumed>) = 0 [pid 5119] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5119] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5118] <... mount resumed>) = 0 [pid 5119] close(3) = 0 [pid 5118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5120] <... mount resumed>) = 0 [pid 5118] <... openat resumed>) = 3 [pid 5120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5118] chdir("./file0" [pid 5120] <... openat resumed>) = 3 [pid 5120] chdir("./file0" [pid 5118] <... chdir resumed>) = 0 [pid 5120] <... chdir resumed>) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5120] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5119] close(4 [pid 5118] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 86.052845][ T5118] [ 86.052845][ T5118] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.052845][ T5118] [ 86.064616][ T5120] [ 86.064616][ T5120] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.064616][ T5120] [ 86.081822][ T5119] loop4: detected capacity change from 0 to 32768 [pid 5121] <... write resumed>) = 16777216 [pid 5120] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5119] <... close resumed>) = 0 [pid 5118] openat(AT_FDCWD, ".", O_RDONLY [pid 5121] munmap(0x7f5a20600000, 138412032 [pid 5120] openat(AT_FDCWD, ".", O_RDONLY [pid 5119] mkdir("./file0", 0777 [pid 5118] <... openat resumed>) = 4 [pid 5118] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5118] exit_group(0) = ? [pid 5119] <... mkdir resumed>) = 0 [pid 5118] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=25 /* 0.25 s */} --- [pid 5120] <... openat resumed>) = 4 [pid 5119] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5120] getdents64(4, [pid 5079] unlink("./6/binderfs" [pid 5120] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5120] exit_group(0 [pid 5079] <... unlink resumed>) = 0 [pid 5120] <... exit_group resumed>) = ? [pid 5079] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5120] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=26 /* 0.26 s */} --- [pid 5081] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./6/binderfs") = 0 [pid 5081] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5121] <... munmap resumed>) = 0 [ 86.195113][ T2481] [ 86.195113][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.195113][ T2481] [ 86.206104][ T62] [ 86.206104][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.206104][ T62] [ 86.219063][ T5119] [ 86.219063][ T5119] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.219063][ T5119] [ 86.229818][ T62] [ 86.229818][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.229818][ T62] [pid 5121] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5121] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5119] <... mount resumed>) = 0 [pid 5119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5121] close(3) = 0 [pid 5121] close(4) = 0 [pid 5121] mkdir("./file0", 0777) = 0 [pid 5121] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5119] <... openat resumed>) = 3 [ 86.231067][ T5121] loop3: detected capacity change from 0 to 32768 [ 86.242505][ T2481] [ 86.242505][ T2481] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.242505][ T2481] [ 86.269844][ T112] [ 86.269844][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.269844][ T112] [ 86.281671][ T5081] [ 86.281671][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.281671][ T5081] [ 86.293432][ T112] [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5119] chdir("./file0") = 0 [pid 5119] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5119] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5119] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5119] exit_group(0) = ? [pid 5119] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=29 /* 0.29 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./6/binderfs") = 0 [ 86.293432][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.293432][ T112] [ 86.293782][ T5081] [ 86.293782][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.293782][ T5081] [ 86.326686][ T5121] [ 86.326686][ T5121] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.326686][ T5121] [pid 5083] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5121] <... mount resumed>) = 0 [pid 5121] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5081] <... umount2 resumed>) = 0 [pid 5121] chdir("./file0") = 0 [pid 5121] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5121] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5121] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5121] exit_group(0) = ? [pid 5121] +++ exited with 0 +++ [ 86.357771][ T5079] [ 86.357771][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.357771][ T5079] [ 86.368709][ T62] [ 86.368709][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.368709][ T62] [ 86.388144][ T62] [ 86.388144][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.388144][ T62] [ 86.399424][ T5079] [ 86.399424][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5081] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=34 /* 0.34 s */} --- [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./6/file0", [pid 5082] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] getdents64(4, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] newfstatat(AT_FDCWD, "./6/file0", [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./6/binderfs" [pid 5081] getdents64(4, [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] <... unlink resumed>) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] rmdir("./6/file0" [pid 5079] <... openat resumed>) = 4 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] getdents64(3, [ 86.399424][ T5079] [ 86.418973][ T111] [ 86.418973][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.418973][ T111] [ 86.431951][ T5083] [ 86.431951][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.431951][ T5083] [ 86.448626][ T62] [ 86.448626][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5079] newfstatat(4, "", [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, [pid 5081] close(3 [pid 5083] <... umount2 resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] rmdir("./6" [pid 5079] getdents64(4, [pid 5083] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] mkdir("./7", 0777 [pid 5079] close(4 [pid 5083] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./6/file0" [pid 5083] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", [pid 5079] <... rmdir resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] getdents64(4, [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] close(3 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5079] rmdir("./6" [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./6/file0") = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5083] getdents64(3, [pid 5079] mkdir("./7", 0777 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./6") = 0 [ 86.448626][ T62] [ 86.451593][ T5083] [ 86.451593][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.451593][ T5083] [ 86.459437][ T62] [ 86.459437][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.459437][ T62] [ 86.485425][ T5082] [ 86.485425][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.485425][ T5082] [ 86.496397][ T112] [ 86.496397][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.496397][ T112] [pid 5083] mkdir("./7", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... mkdir resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 86.522507][ T5082] [ 86.522507][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.522507][ T5082] [pid 5082] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./6/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./6") = 0 [pid 5082] mkdir("./7", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5122] <... write resumed>) = 16777216 [pid 5122] munmap(0x7f5a20600000, 138412032) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5122] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5122] close(3) = 0 [pid 5122] close(4) = 0 [pid 5122] mkdir("./file0", 0777) = 0 [ 86.779488][ T5122] loop1: detected capacity change from 0 to 32768 [pid 5122] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] <... ioctl resumed>) = 0 [pid 5122] <... mount resumed>) = 0 [pid 5122] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5122] chdir("./file0") = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5122] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5122] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5122] exit_group(0 [pid 5083] close(3 [pid 5122] <... exit_group resumed>) = ? [pid 5122] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5080] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./6/binderfs") = 0 [pid 5080] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... close resumed>) = 0 [ 86.874280][ T5122] [ 86.874280][ T5122] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.874280][ T5122] [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5123 attached [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5123 [ 86.936944][ T2436] [ 86.936944][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.936944][ T2436] [ 86.955468][ T2436] [ 86.955468][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.955468][ T2436] [ 86.968742][ T111] [ 86.968742][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.968742][ T111] [ 86.979532][ T5080] [pid 5081] <... ioctl resumed>) = 0 [pid 5123] set_robust_list(0x55557f81b660, 24 [pid 5082] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5123] <... set_robust_list resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5124 attached [pid 5123] chdir("./7" [pid 5082] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5123] <... chdir resumed>) = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5123] setpgid(0, 0) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5125 ./strace-static-x86_64: Process 5125 attached [pid 5123] <... close resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5123] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5124] set_robust_list(0x55557f81b660, 24 [pid 5125] set_robust_list(0x55557f81b660, 24 [pid 5123] memfd_create("syzkaller", 0 [pid 5125] <... set_robust_list resumed>) = 0 [pid 5125] chdir("./7") = 0 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] <... memfd_create resumed>) = 3 [pid 5125] <... prctl resumed>) = 0 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5125] setpgid(0, 0 [pid 5123] <... mmap resumed>) = 0x7f5a20600000 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5126 [pid 5125] <... setpgid resumed>) = 0 [pid 5124] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5126 attached [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5124 [pid 5126] set_robust_list(0x55557f81b660, 24) = 0 [pid 5124] chdir("./7" [pid 5126] chdir("./7") = 0 [pid 5124] <... chdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5126] <... prctl resumed>) = 0 [pid 5125] <... openat resumed>) = 3 [pid 5124] <... prctl resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] setpgid(0, 0 [pid 5124] setpgid(0, 0 [pid 5080] newfstatat(AT_FDCWD, "./6/file0", [pid 5126] <... setpgid resumed>) = 0 [pid 5125] write(3, "1000", 4 [pid 5124] <... setpgid resumed>) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5125] <... write resumed>) = 4 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5126] <... openat resumed>) = 3 [pid 5125] close(3 [pid 5080] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5125] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5125] symlink("/dev/binderfs", "./binderfs" [pid 5080] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5125] <... symlink resumed>) = 0 [pid 5126] write(3, "1000", 4 [pid 5125] memfd_create("syzkaller", 0 [pid 5124] <... openat resumed>) = 3 [pid 5126] <... write resumed>) = 4 [pid 5124] write(3, "1000", 4 [pid 5126] close(3 [pid 5124] <... write resumed>) = 4 [pid 5126] <... close resumed>) = 0 [pid 5124] close(3 [pid 5126] symlink("/dev/binderfs", "./binderfs" [pid 5124] <... close resumed>) = 0 [pid 5125] <... memfd_create resumed>) = 3 [pid 5124] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... openat resumed>) = 4 [pid 5126] <... symlink resumed>) = 0 [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5124] <... symlink resumed>) = 0 [ 86.979532][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.979532][ T5080] [ 86.997508][ T5080] [ 86.997508][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 86.997508][ T5080] [ 86.999182][ T8] cfg80211: failed to load regulatory.db [pid 5080] newfstatat(4, "", [pid 5126] memfd_create("syzkaller", 0 [pid 5124] memfd_create("syzkaller", 0 [pid 5126] <... memfd_create resumed>) = 3 [pid 5124] <... memfd_create resumed>) = 3 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5126] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./6/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./6") = 0 [pid 5124] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] mkdir("./7", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD) = 0 [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"..., 16777216 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5127 ./strace-static-x86_64: Process 5127 attached [pid 5127] set_robust_list(0x55557f81b660, 24) = 0 [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"..., 16777216 [pid 5127] chdir("./7" [pid 5125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5127] <... chdir resumed>) = 0 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5127] setpgid(0, 0) = 0 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5127] write(3, "1000", 4) = 4 [pid 5127] close(3) = 0 [pid 5127] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5127] memfd_create("syzkaller", 0) = 3 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5124] <... write resumed>) = 16777216 [pid 5124] munmap(0x7f5a20600000, 138412032 [pid 5125] <... write resumed>) = 16777216 [pid 5125] munmap(0x7f5a20600000, 138412032 [pid 5124] <... munmap resumed>) = 0 [pid 5126] <... write resumed>) = 16777216 [pid 5124] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5124] ioctl(4, LOOP_SET_FD, 3 [pid 5126] munmap(0x7f5a20600000, 138412032 [pid 5124] <... ioctl resumed>) = 0 [pid 5123] <... write resumed>) = 16777216 [pid 5124] close(3) = 0 [pid 5125] <... munmap resumed>) = 0 [pid 5124] close(4 [pid 5123] munmap(0x7f5a20600000, 138412032 [pid 5124] <... close resumed>) = 0 [pid 5124] mkdir("./file0", 0777 [pid 5125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5124] <... mkdir resumed>) = 0 [pid 5125] ioctl(4, LOOP_SET_FD, 3 [ 88.119574][ T5124] loop2: detected capacity change from 0 to 32768 [pid 5124] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5126] <... munmap resumed>) = 0 [pid 5126] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5125] <... ioctl resumed>) = 0 [pid 5126] <... openat resumed>) = 4 [pid 5125] close(3 [pid 5123] <... munmap resumed>) = 0 [pid 5125] <... close resumed>) = 0 [pid 5125] close(4 [pid 5123] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5123] ioctl(4, LOOP_SET_FD, 3 [pid 5125] <... close resumed>) = 0 [pid 5126] ioctl(4, LOOP_SET_FD, 3 [pid 5125] mkdir("./file0", 0777) = 0 [pid 5123] <... ioctl resumed>) = 0 [pid 5123] close(3) = 0 [pid 5123] close(4) = 0 [pid 5123] mkdir("./file0", 0777 [pid 5126] <... ioctl resumed>) = 0 [pid 5123] <... mkdir resumed>) = 0 [pid 5123] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5124] <... mount resumed>) = 0 [pid 5126] close(3) = 0 [pid 5125] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5124] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5126] close(4 [pid 5124] <... openat resumed>) = 3 [pid 5126] <... close resumed>) = 0 [pid 5124] chdir("./file0" [pid 5126] mkdir("./file0", 0777 [pid 5124] <... chdir resumed>) = 0 [ 88.163155][ T5125] loop0: detected capacity change from 0 to 32768 [ 88.174476][ T5124] [ 88.174476][ T5124] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.174476][ T5124] [ 88.195704][ T5123] loop4: detected capacity change from 0 to 32768 [ 88.203866][ T5126] loop3: detected capacity change from 0 to 32768 [pid 5126] <... mkdir resumed>) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5126] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5124] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5124] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5124] getdents64(4, [pid 5125] <... mount resumed>) = 0 [pid 5124] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5125] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5124] exit_group(0 [pid 5125] chdir("./file0" [pid 5124] <... exit_group resumed>) = ? [pid 5124] +++ exited with 0 +++ [ 88.231143][ T5125] [ 88.231143][ T5125] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.231143][ T5125] [ 88.250052][ T5123] [ 88.250052][ T5123] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.250052][ T5123] [pid 5125] <... chdir resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=29 /* 0.29 s */} --- [pid 5125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5125] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5081] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5125] getdents64(4, [pid 5081] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5125] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5125] exit_group(0 [pid 5081] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5125] <... exit_group resumed>) = ? [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./7/binderfs") = 0 [pid 5081] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5123] <... mount resumed>) = 0 [pid 5123] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5123] chdir("./file0" [pid 5125] +++ exited with 0 +++ [pid 5123] <... chdir resumed>) = 0 [pid 5126] <... mount resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5126] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5123] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=31 /* 0.31 s */} --- [pid 5126] <... openat resumed>) = 3 [pid 5123] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5126] chdir("./file0" [pid 5123] <... openat resumed>) = 4 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5126] <... chdir resumed>) = 0 [ 88.281303][ T5126] [ 88.281303][ T5126] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.281303][ T5126] [ 88.300879][ T11] [ 88.300879][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.300879][ T11] [ 88.327336][ T11] [pid 5126] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5123] getdents64(4, [pid 5079] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, [pid 5123] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5126] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5123] exit_group(0 [pid 5079] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5126] openat(AT_FDCWD, ".", O_RDONLY [pid 5123] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5126] <... openat resumed>) = 4 [pid 5123] +++ exited with 0 +++ [pid 5079] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5126] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5126] exit_group(0 [pid 5079] unlink("./7/binderfs" [pid 5126] <... exit_group resumed>) = ? [pid 5079] <... unlink resumed>) = 0 [pid 5083] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, [pid 5126] +++ exited with 0 +++ [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=32 /* 0.32 s */} --- [pid 5083] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 88.327336][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.327336][ T11] [ 88.352534][ T112] [ 88.352534][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.352534][ T112] [ 88.376705][ T11] [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5083] unlink("./7/binderfs") = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./7/binderfs" [pid 5083] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... unlink resumed>) = 0 [ 88.376705][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.376705][ T11] [ 88.393842][ T5081] [ 88.393842][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.393842][ T5081] [ 88.394217][ T2436] [ 88.394217][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.394217][ T2436] [ 88.406709][ T11] [ 88.406709][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.406709][ T11] [ 88.417352][ T62] [ 88.417352][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.417352][ T62] [ 88.426380][ T5079] [ 88.426380][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.426380][ T5079] [ 88.449535][ T5081] [ 88.449535][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.449535][ T5081] [ 88.479683][ T62] [pid 5082] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./7/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./7") = 0 [pid 5081] mkdir("./8", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 88.479683][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.479683][ T62] [ 88.497419][ T112] [ 88.497419][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.497419][ T112] [ 88.507887][ T2436] [ 88.507887][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.507887][ T2436] [ 88.508445][ T111] [ 88.508445][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.508445][ T111] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5127] <... write resumed>) = 16777216 [ 88.535861][ T5079] [ 88.535861][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.535861][ T5079] [ 88.546777][ T5082] [ 88.546777][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.546777][ T5082] [ 88.546880][ T5083] [ 88.546880][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.546880][ T5083] [ 88.558585][ T5082] [ 88.558585][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.558585][ T5082] [ 88.570403][ T5083] [pid 5127] munmap(0x7f5a20600000, 138412032 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./7/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5083] <... umount2 resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./7" [ 88.570403][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.570403][ T5083] [ 88.586487][ T111] [ 88.586487][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.586487][ T111] [pid 5083] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./8", 0777 [pid 5083] newfstatat(AT_FDCWD, "./7/file0", [pid 5079] <... mkdir resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] <... openat resumed>) = 3 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./7/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./7") = 0 [pid 5083] mkdir("./8", 0777 [pid 5127] <... munmap resumed>) = 0 [pid 5083] <... mkdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5127] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] <... openat resumed>) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5127] <... openat resumed>) = 4 [pid 5127] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5127] close(3) = 0 [pid 5127] close(4) = 0 [pid 5127] mkdir("./file0", 0777) = 0 [ 88.679012][ T5127] loop1: detected capacity change from 0 to 32768 [pid 5127] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5127] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5127] chdir("./file0") = 0 [pid 5127] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5127] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5127] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5127] exit_group(0) = ? [pid 5127] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=26 /* 0.26 s */} --- [pid 5080] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./7/binderfs") = 0 [ 88.726918][ T5127] [ 88.726918][ T5127] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.726918][ T5127] [pid 5080] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [ 88.796134][ T2436] [ 88.796134][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.796134][ T2436] [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5128 attached [pid 5082] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./7/file0", [pid 5128] set_robust_list(0x55557f81b660, 24 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5128 [pid 5128] <... set_robust_list resumed>) = 0 [pid 5082] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5128] chdir("./8") = 0 [pid 5082] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] <... openat resumed>) = 4 [pid 5082] newfstatat(4, "", [pid 5128] setpgid(0, 0) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5128] <... openat resumed>) = 3 [pid 5128] write(3, "1000", 4 [pid 5082] <... close resumed>) = 0 [pid 5128] <... write resumed>) = 4 [pid 5128] close(3 [pid 5082] rmdir("./7/file0" [pid 5128] <... close resumed>) = 0 [pid 5128] symlink("/dev/binderfs", "./binderfs" [pid 5082] <... rmdir resumed>) = 0 [pid 5082] getdents64(3, [pid 5128] <... symlink resumed>) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./7" [pid 5128] memfd_create("syzkaller", 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] mkdir("./8", 0777 [pid 5128] <... memfd_create resumed>) = 3 [pid 5082] <... mkdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 88.837437][ T2436] [ 88.837437][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.837437][ T2436] [ 88.867749][ T5080] [ 88.867749][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.867749][ T5080] [ 88.902525][ T112] [ 88.902525][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.902525][ T112] [ 88.917380][ T5080] [ 88.917380][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 88.917380][ T5080] [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./7/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./7") = 0 [pid 5080] mkdir("./8", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5129 ./strace-static-x86_64: Process 5129 attached [pid 5129] set_robust_list(0x55557f81b660, 24) = 0 [pid 5129] chdir("./8") = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] close(3 [pid 5129] <... prctl resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5129] setpgid(0, 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5129] <... setpgid resumed>) = 0 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5130 attached ) = 3 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5130 [pid 5129] write(3, "1000", 4) = 4 [pid 5129] close(3) = 0 [pid 5129] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5129] memfd_create("syzkaller", 0 [pid 5130] set_robust_list(0x55557f81b660, 24 [pid 5129] <... memfd_create resumed>) = 3 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5130] <... set_robust_list resumed>) = 0 [pid 5130] chdir("./8") = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5130] setpgid(0, 0) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5130] write(3, "1000", 4) = 4 [pid 5130] close(3) = 0 [pid 5130] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5130] memfd_create("syzkaller", 0) = 3 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5131 attached [pid 5131] set_robust_list(0x55557f81b660, 24 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5131 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5131] chdir("./8") = 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] memfd_create("syzkaller", 0) = 3 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached , child_tidptr=0x55557f81b650) = 5132 [pid 5132] set_robust_list(0x55557f81b660, 24) = 0 [pid 5132] chdir("./8") = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5132] setpgid(0, 0) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5132] write(3, "1000", 4) = 4 [pid 5132] close(3) = 0 [pid 5132] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5132] memfd_create("syzkaller", 0) = 3 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5128] <... write resumed>) = 16777216 [pid 5128] munmap(0x7f5a20600000, 138412032) = 0 [pid 5128] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5128] ioctl(4, LOOP_SET_FD, 3 [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"..., 16777216 [pid 5128] <... ioctl resumed>) = 0 [pid 5128] close(3) = 0 [pid 5128] close(4) = 0 [pid 5128] mkdir("./file0", 0777) = 0 [ 89.929945][ T5128] loop2: detected capacity change from 0 to 32768 [pid 5128] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5128] chdir("./file0") = 0 [pid 5128] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5129] <... write resumed>) = 16777216 [pid 5128] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5128] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 90.017286][ T5128] [ 90.017286][ T5128] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.017286][ T5128] [pid 5129] munmap(0x7f5a20600000, 138412032 [pid 5128] exit_group(0) = ? [pid 5128] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=27 /* 0.27 s */} --- [pid 5081] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./8/binderfs" [pid 5129] <... munmap resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5081] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5129] ioctl(4, LOOP_SET_FD, 3 [pid 5130] <... write resumed>) = 16777216 [pid 5129] <... ioctl resumed>) = 0 [pid 5129] close(3) = 0 [ 90.127547][ T2436] [ 90.127547][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.127547][ T2436] [ 90.146755][ T5129] loop0: detected capacity change from 0 to 32768 [ 90.167971][ T2436] [ 90.167971][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5129] close(4) = 0 [pid 5129] mkdir("./file0", 0777) = 0 [pid 5129] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 90.167971][ T2436] [ 90.195954][ T5129] [ 90.195954][ T5129] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.195954][ T5129] [pid 5130] munmap(0x7f5a20600000, 138412032 [pid 5129] <... mount resumed>) = 0 [pid 5130] <... munmap resumed>) = 0 [ 90.228688][ T112] [ 90.228688][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.228688][ T112] [ 90.268898][ T5081] [ 90.268898][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5129] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5130] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5129] chdir("./file0" [pid 5130] <... openat resumed>) = 4 [pid 5129] <... chdir resumed>) = 0 [pid 5130] ioctl(4, LOOP_SET_FD, 3 [pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5129] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5129] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5129] exit_group(0) = ? [pid 5129] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=29 /* 0.29 s */} --- [pid 5079] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5130] <... ioctl resumed>) = 0 [pid 5079] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5130] close(3) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5130] close(4 [pid 5079] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5130] <... close resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5130] mkdir("./file0", 0777 [pid 5079] unlink("./8/binderfs") = 0 [pid 5130] <... mkdir resumed>) = 0 [ 90.268898][ T5081] [ 90.269309][ T5130] loop4: detected capacity change from 0 to 32768 [ 90.310420][ T5081] [ 90.310420][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.310420][ T5081] [pid 5079] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5130] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 90.342493][ T62] [ 90.342493][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.342493][ T62] [ 90.368577][ T62] [ 90.368577][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.368577][ T62] [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4 [pid 5131] <... write resumed>) = 16777216 [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./8/file0") = 0 [pid 5131] munmap(0x7f5a20600000, 138412032 [pid 5130] <... mount resumed>) = 0 [pid 5081] getdents64(3, [pid 5130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5130] <... openat resumed>) = 3 [pid 5081] close(3 [pid 5130] chdir("./file0" [pid 5132] <... write resumed>) = 16777216 [pid 5130] <... chdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5132] munmap(0x7f5a20600000, 138412032 [pid 5130] openat(AT_FDCWD, "/dev/loop4", O_RDWR [ 90.390695][ T5130] [ 90.390695][ T5130] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.390695][ T5130] [ 90.406551][ T5079] [ 90.406551][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.406551][ T5079] [ 90.427769][ T111] [ 90.427769][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.427769][ T111] [pid 5081] rmdir("./8" [pid 5130] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] <... rmdir resumed>) = 0 [pid 5130] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5130] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5130] exit_group(0) = ? [pid 5081] mkdir("./9", 0777 [pid 5131] <... munmap resumed>) = 0 [pid 5132] <... munmap resumed>) = 0 [pid 5130] +++ exited with 0 +++ [pid 5081] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=30 /* 0.30 s */} --- [pid 5131] <... openat resumed>) = 4 [pid 5079] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5132] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5131] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5132] <... openat resumed>) = 4 [pid 5083] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5132] ioctl(4, LOOP_SET_FD, 3 [pid 5131] <... ioctl resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5079] newfstatat(AT_FDCWD, "./8/file0", [pid 5131] close(3 [pid 5083] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5131] <... close resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5079] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5131] close(4 [pid 5083] newfstatat(3, "", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5131] <... close resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5131] mkdir("./file0", 0777 [pid 5083] getdents64(3, [pid 5079] <... openat resumed>) = 4 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] newfstatat(4, "", [pid 5083] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5131] <... mkdir resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5079] getdents64(4, [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] unlink("./8/binderfs" [pid 5079] close(4) = 0 [pid 5083] <... unlink resumed>) = 0 [pid 5079] rmdir("./8/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [ 90.458771][ T5079] [ 90.458771][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.458771][ T5079] [ 90.490482][ T5131] loop3: detected capacity change from 0 to 32768 [ 90.492805][ T5132] loop1: detected capacity change from 0 to 32768 [pid 5083] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5131] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] rmdir("./8") = 0 [pid 5079] mkdir("./9", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5132] <... ioctl resumed>) = 0 [pid 5131] <... mount resumed>) = 0 [pid 5132] close(3 [pid 5131] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5132] <... close resumed>) = 0 [pid 5132] close(4 [pid 5131] <... openat resumed>) = 3 [pid 5132] <... close resumed>) = 0 [pid 5132] mkdir("./file0", 0777) = 0 [ 90.513891][ T62] [ 90.513891][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.513891][ T62] [ 90.521844][ T5131] [ 90.521844][ T5131] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.521844][ T5131] [ 90.530740][ T62] [ 90.530740][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.530740][ T62] [ 90.555665][ T5132] [ 90.555665][ T5132] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5132] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5131] chdir("./file0") = 0 [pid 5131] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5131] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5131] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5131] exit_group(0) = ? [pid 5132] <... mount resumed>) = 0 [pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5132] chdir("./file0") = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5132] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5132] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5131] +++ exited with 0 +++ [pid 5132] exit_group(0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=33 /* 0.33 s */} --- [pid 5132] <... exit_group resumed>) = ? [pid 5082] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5132] +++ exited with 0 +++ [pid 5082] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=34 /* 0.34 s */} --- [ 90.555665][ T5132] [ 90.581119][ T112] [ 90.581119][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.581119][ T112] [ 90.610331][ T5083] [pid 5082] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./8/binderfs") = 0 [pid 5082] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./8/binderfs") = 0 [ 90.610331][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.610331][ T5083] [ 90.647950][ T2436] [ 90.647950][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.647950][ T2436] [ 90.662873][ T5083] [ 90.662873][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.662873][ T5083] [ 90.674115][ T62] [ 90.674115][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.674115][ T62] [ 90.681648][ T2436] [ 90.681648][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.681648][ T2436] [ 90.695566][ T62] [ 90.695566][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.695566][ T62] [ 90.707006][ T5080] [pid 5080] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 90.707006][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.707006][ T5080] [ 90.719392][ T111] [ 90.719392][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.719392][ T111] [ 90.731139][ T5080] [ 90.731139][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.731139][ T5080] [ 90.742072][ T112] [ 90.742072][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.742072][ T112] [ 90.753661][ T5082] [ 90.753661][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.753661][ T5082] [pid 5080] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./8/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./8" [pid 5083] newfstatat(AT_FDCWD, "./8/file0", [pid 5080] <... rmdir resumed>) = 0 [pid 5080] mkdir("./9", 0777 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... mkdir resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] <... openat resumed>) = 3 [pid 5083] newfstatat(4, "", [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, [pid 5080] <... close resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] rmdir("./8/file0") = 0 [pid 5083] getdents64(3, ./strace-static-x86_64: Process 5133 attached [pid 5133] set_robust_list(0x55557f81b660, 24) = 0 [pid 5133] chdir("./9") = 0 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5133] setpgid(0, 0) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5133 [pid 5133] write(3, "1000", 4) = 4 [pid 5133] close(3) = 0 [ 90.774149][ T5082] [ 90.774149][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 90.774149][ T5082] [pid 5133] symlink("/dev/binderfs", "./binderfs" [pid 5083] close(3 [pid 5133] <... symlink resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5133] memfd_create("syzkaller", 0 [pid 5083] rmdir("./8" [pid 5082] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./8/file0", [pid 5083] <... rmdir resumed>) = 0 [pid 5083] mkdir("./9", 0777 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5133] <... memfd_create resumed>) = 3 [pid 5082] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... mkdir resumed>) = 0 [pid 5082] <... openat resumed>) = 4 [pid 5133] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] newfstatat(4, "", [pid 5083] <... openat resumed>) = 3 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./8/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./8") = 0 [pid 5082] mkdir("./9", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5134 attached [pid 5079] <... close resumed>) = 0 [pid 5134] set_robust_list(0x55557f81b660, 24) = 0 [pid 5134] chdir("./9" [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5134 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5134] <... chdir resumed>) = 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 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5135 [pid 5134] write(3, "1000", 4) = 4 [pid 5134] close(3) = 0 [pid 5134] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5135 attached ) = 0 [pid 5135] set_robust_list(0x55557f81b660, 24 [pid 5134] memfd_create("syzkaller", 0) = 3 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5135] chdir("./9") = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5135] memfd_create("syzkaller", 0) = 3 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5082] <... ioctl resumed>) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5136 ./strace-static-x86_64: Process 5136 attached [pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] close(3 [pid 5136] set_robust_list(0x55557f81b660, 24 [pid 5082] <... close resumed>) = 0 [pid 5136] <... set_robust_list resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5136] chdir("./9"./strace-static-x86_64: Process 5137 attached ) = 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5137 [pid 5137] set_robust_list(0x55557f81b660, 24 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] <... set_robust_list resumed>) = 0 [pid 5137] chdir("./9" [pid 5136] setpgid(0, 0 [pid 5137] <... chdir resumed>) = 0 [pid 5136] <... setpgid resumed>) = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5137] <... prctl resumed>) = 0 [pid 5136] <... openat resumed>) = 3 [pid 5136] write(3, "1000", 4 [pid 5137] setpgid(0, 0 [pid 5136] <... write resumed>) = 4 [pid 5136] close(3) = 0 [pid 5137] <... setpgid resumed>) = 0 [pid 5136] symlink("/dev/binderfs", "./binderfs" [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5136] <... symlink resumed>) = 0 [pid 5137] <... openat resumed>) = 3 [pid 5136] memfd_create("syzkaller", 0 [pid 5137] write(3, "1000", 4 [pid 5136] <... memfd_create resumed>) = 3 [pid 5137] <... write resumed>) = 4 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5137] close(3) = 0 [pid 5137] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5137] memfd_create("syzkaller", 0) = 3 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [pid 5137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5133] <... write resumed>) = 16777216 [pid 5133] munmap(0x7f5a20600000, 138412032) = 0 [pid 5133] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5133] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5133] close(3) = 0 [pid 5133] close(4) = 0 [pid 5133] mkdir("./file0", 0777) = 0 [ 92.039408][ T5133] loop1: detected capacity change from 0 to 32768 [pid 5133] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5134] <... write resumed>) = 16777216 [pid 5134] munmap(0x7f5a20600000, 138412032 [pid 5133] <... mount resumed>) = 0 [pid 5133] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5133] chdir("./file0") = 0 [pid 5133] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5133] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5133] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5133] exit_group(0) = ? [pid 5133] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=38 /* 0.38 s */} --- [pid 5080] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 92.098372][ T5133] [ 92.098372][ T5133] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.098372][ T5133] [pid 5080] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./9/binderfs") = 0 [pid 5080] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5134] <... munmap resumed>) = 0 [pid 5134] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5134] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5134] close(3) = 0 [pid 5134] close(4) = 0 [pid 5134] mkdir("./file0", 0777) = 0 [pid 5134] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5135] <... write resumed>) = 16777216 [ 92.181520][ T62] [ 92.181520][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.181520][ T62] [ 92.194862][ T5134] loop2: detected capacity change from 0 to 32768 [ 92.214614][ T62] [ 92.214614][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.214614][ T62] [ 92.258649][ T5080] [ 92.258649][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.258649][ T5080] [ 92.286547][ T5134] [ 92.286547][ T5134] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.286547][ T5134] [ 92.299463][ T5080] [ 92.299463][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5135] munmap(0x7f5a20600000, 138412032) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5135] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5134] <... mount resumed>) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5135] close(3 [pid 5080] getdents64(4, [pid 5135] <... close resumed>) = 0 [pid 5134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5135] close(4 [pid 5134] <... openat resumed>) = 3 [pid 5080] getdents64(4, [pid 5135] <... close resumed>) = 0 [pid 5134] chdir("./file0" [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [ 92.299463][ T5080] [ 92.314089][ T5135] loop0: detected capacity change from 0 to 32768 [ 92.322547][ T111] [ 92.322547][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.322547][ T111] [pid 5135] mkdir("./file0", 0777 [pid 5134] <... chdir resumed>) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./9/file0" [pid 5135] <... mkdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5135] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5134] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5080] close(3 [pid 5134] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./9") = 0 [pid 5080] mkdir("./10", 0777) = 0 [pid 5134] openat(AT_FDCWD, ".", O_RDONLY [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5134] <... openat resumed>) = 4 [pid 5134] getdents64(4, [pid 5080] <... openat resumed>) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5134] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5134] exit_group(0) = ? [pid 5134] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=23 /* 0.23 s */} --- [pid 5081] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", [pid 5135] <... mount resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5137] <... write resumed>) = 16777216 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5137] munmap(0x7f5a20600000, 138412032 [pid 5135] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 92.377631][ T5135] [ 92.377631][ T5135] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.377631][ T5135] [pid 5081] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5135] <... openat resumed>) = 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./9/binderfs" [pid 5135] chdir("./file0") = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5081] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5135] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5135] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5135] exit_group(0) = ? [pid 5135] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=42 /* 0.42 s */} --- [pid 5079] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5136] <... write resumed>) = 16777216 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5136] munmap(0x7f5a20600000, 138412032 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5137] <... munmap resumed>) = 0 [pid 5079] unlink("./9/binderfs") = 0 [pid 5079] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5137] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 92.448067][ T1837] [ 92.448067][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.448067][ T1837] [ 92.478411][ T1837] [ 92.478411][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.478411][ T1837] [pid 5137] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5136] <... munmap resumed>) = 0 [pid 5137] close(3) = 0 [pid 5136] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5137] close(4) = 0 [pid 5136] <... openat resumed>) = 4 [ 92.492158][ T5137] loop3: detected capacity change from 0 to 32768 [ 92.500284][ T111] [ 92.500284][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.500284][ T111] [ 92.511684][ T1837] [ 92.511684][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.511684][ T1837] [ 92.519346][ T5081] [ 92.519346][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.519346][ T5081] [ 92.533368][ T5081] [ 92.533368][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.533368][ T5081] [pid 5137] mkdir("./file0", 0777 [pid 5136] ioctl(4, LOOP_SET_FD, 3 [pid 5137] <... mkdir resumed>) = 0 [pid 5137] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5136] <... ioctl resumed>) = 0 [pid 5136] close(3) = 0 [pid 5136] close(4) = 0 [pid 5136] mkdir("./file0", 0777) = 0 [ 92.535959][ T5136] loop4: detected capacity change from 0 to 32768 [ 92.557031][ T1837] [ 92.557031][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.557031][ T1837] [ 92.578564][ T5137] [ 92.578564][ T5137] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.578564][ T5137] [ 92.590915][ T5079] [pid 5136] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... umount2 resumed>) = 0 [pid 5137] <... mount resumed>) = 0 [pid 5137] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5137] chdir("./file0") = 0 [pid 5137] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5137] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5137] getdents64(4, [pid 5081] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./9/file0", [pid 5137] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5137] exit_group(0 [pid 5081] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5137] <... exit_group resumed>) = ? [pid 5137] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=29 /* 0.29 s */} --- [pid 5081] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", [pid 5136] <... mount resumed>) = 0 [pid 5082] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5082] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5136] chdir("./file0" [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 92.590915][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.590915][ T5079] [ 92.603773][ T5136] [ 92.603773][ T5136] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.603773][ T5136] [pid 5136] <... chdir resumed>) = 0 [pid 5082] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5136] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] unlink("./9/binderfs" [pid 5136] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] <... unlink resumed>) = 0 [pid 5136] openat(AT_FDCWD, ".", O_RDONLY [pid 5082] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5136] <... openat resumed>) = 4 [pid 5136] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5136] exit_group(0) = ? [pid 5136] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=34 /* 0.34 s */} --- [pid 5083] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, [pid 5081] getdents64(4, [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] getdents64(4, [pid 5083] unlink("./9/binderfs") = 0 [pid 5083] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [ 92.651594][ T111] [ 92.651594][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.651594][ T111] [ 92.666855][ T2436] [ 92.666855][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.666855][ T2436] [ 92.671451][ T5079] [ 92.671451][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.671451][ T5079] [ 92.689798][ T1837] [ 92.689798][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.689798][ T1837] [pid 5081] rmdir("./9/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./9") = 0 [pid 5081] mkdir("./10", 0777 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5079] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5079] <... openat resumed>) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./9/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./9") = 0 [pid 5079] mkdir("./10", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 92.702280][ T1837] [ 92.702280][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.702280][ T1837] [ 92.715259][ T2436] [ 92.715259][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.715259][ T2436] [ 92.741867][ T112] [ 92.741867][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.741867][ T112] [ 92.743219][ T5083] [ 92.743219][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.743219][ T5083] [ 92.763130][ T5082] [ 92.763130][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.763130][ T5082] [ 92.774275][ T5082] [ 92.774275][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.774275][ T5082] [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 92.808519][ T5083] [ 92.808519][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.808519][ T5083] [pid 5082] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] close(3 [pid 5082] newfstatat(4, "", [pid 5080] <... close resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5138 ./strace-static-x86_64: Process 5138 attached [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5138] set_robust_list(0x55557f81b660, 24 [pid 5082] <... close resumed>) = 0 [pid 5138] <... set_robust_list resumed>) = 0 [pid 5138] chdir("./10" [pid 5082] rmdir("./9/file0" [pid 5138] <... chdir resumed>) = 0 [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] <... rmdir resumed>) = 0 [pid 5138] <... prctl resumed>) = 0 [pid 5082] getdents64(3, [pid 5138] setpgid(0, 0) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] close(3 [pid 5083] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5138] <... openat resumed>) = 3 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./9" [pid 5138] write(3, "1000", 4) = 4 [pid 5083] newfstatat(AT_FDCWD, "./9/file0", [pid 5082] <... rmdir resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 92.861954][ T112] [ 92.861954][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 92.861954][ T112] [pid 5083] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5138] close(3 [pid 5083] <... openat resumed>) = 4 [pid 5082] mkdir("./10", 0777 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./9/file0" [pid 5138] <... close resumed>) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5083] getdents64(3, [pid 5138] symlink("/dev/binderfs", "./binderfs" [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./9") = 0 [pid 5138] <... symlink resumed>) = 0 [pid 5138] memfd_create("syzkaller", 0 [pid 5083] mkdir("./10", 0777 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5138] <... memfd_create resumed>) = 3 [pid 5083] <... mkdir resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5138] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5139 ./strace-static-x86_64: Process 5139 attached [pid 5139] set_robust_list(0x55557f81b660, 24) = 0 [pid 5139] chdir("./10") = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5139] setpgid(0, 0) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5139] write(3, "1000", 4) = 4 [pid 5139] close(3) = 0 [pid 5139] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5139] memfd_create("syzkaller", 0) = 3 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5140 ./strace-static-x86_64: Process 5140 attached [pid 5140] set_robust_list(0x55557f81b660, 24) = 0 [pid 5140] chdir("./10") = 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] memfd_create("syzkaller", 0) = 3 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3 [pid 5083] <... close resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... close resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5141 attached [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5141 [pid 5141] set_robust_list(0x55557f81b660, 24./strace-static-x86_64: Process 5142 attached [pid 5142] set_robust_list(0x55557f81b660, 24 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5142 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5142] chdir("./10") = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5142] setpgid(0, 0) = 0 [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5142] write(3, "1000", 4) = 4 [pid 5142] close(3) = 0 [pid 5142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5142] memfd_create("syzkaller", 0) = 3 [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5141] <... set_robust_list resumed>) = 0 [pid 5141] chdir("./10") = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5141] setpgid(0, 0) = 0 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5141] write(3, "1000", 4) = 4 [pid 5141] close(3) = 0 [pid 5141] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5141] memfd_create("syzkaller", 0) = 3 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5138] <... write resumed>) = 16777216 [pid 5138] munmap(0x7f5a20600000, 138412032 [pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5138] <... munmap resumed>) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop1", O_RDWR [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"..., 16777216 [pid 5138] <... openat resumed>) = 4 [pid 5138] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5138] close(3) = 0 [pid 5138] close(4) = 0 [pid 5138] mkdir("./file0", 0777) = 0 [ 93.970454][ T5138] loop1: detected capacity change from 0 to 32768 [pid 5138] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5139] <... write resumed>) = 16777216 [pid 5139] munmap(0x7f5a20600000, 138412032 [pid 5138] <... mount resumed>) = 0 [pid 5138] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5138] chdir("./file0") = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5139] <... munmap resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5139] <... openat resumed>) = 4 [ 94.022468][ T5138] [ 94.022468][ T5138] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.022468][ T5138] [pid 5138] openat(AT_FDCWD, ".", O_RDONLY [pid 5139] ioctl(4, LOOP_SET_FD, 3 [pid 5138] <... openat resumed>) = 4 [pid 5138] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5139] <... ioctl resumed>) = 0 [pid 5138] exit_group(0 [pid 5139] close(3 [pid 5138] <... exit_group resumed>) = ? [pid 5139] <... close resumed>) = 0 [pid 5138] +++ exited with 0 +++ [pid 5139] close(4) = 0 [pid 5139] mkdir("./file0", 0777 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=27 /* 0.27 s */} --- [pid 5080] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5139] <... mkdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 94.086654][ T5139] loop0: detected capacity change from 0 to 32768 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./10/binderfs") = 0 [pid 5080] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5139] <... mount resumed>) = 0 [pid 5139] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 94.128886][ T5139] [ 94.128886][ T5139] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.128886][ T5139] [ 94.147570][ T2436] [ 94.147570][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.147570][ T2436] [ 94.168306][ T2436] [ 94.168306][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.168306][ T2436] [pid 5139] chdir("./file0") = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5139] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5139] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5139] exit_group(0) = ? [pid 5139] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=33 /* 0.33 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 94.197709][ T111] [ 94.197709][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.197709][ T111] [ 94.209742][ T5080] [ 94.209742][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.209742][ T5080] [pid 5079] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./10/binderfs") = 0 [ 94.241162][ T5080] [ 94.241162][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.241162][ T5080] [pid 5079] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [pid 5140] <... write resumed>) = 16777216 [pid 5140] munmap(0x7f5a20600000, 138412032 [pid 5080] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 94.287422][ T1837] [ 94.287422][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.287422][ T1837] [ 94.308345][ T1837] [ 94.308345][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.308345][ T1837] [pid 5080] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./10/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./10") = 0 [pid 5080] mkdir("./11", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 94.339524][ T5079] [ 94.339524][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.339524][ T5079] [ 94.350897][ T112] [ 94.350897][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.350897][ T112] [ 94.379240][ T5079] [ 94.379240][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.379240][ T5079] [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5140] <... munmap resumed>) = 0 [pid 5141] <... write resumed>) = 16777216 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5141] munmap(0x7f5a20600000, 138412032 [pid 5140] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] newfstatat(AT_FDCWD, "./10/file0", [pid 5140] <... openat resumed>) = 4 [pid 5140] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, [pid 5142] <... write resumed>) = 16777216 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5140] <... ioctl resumed>) = 0 [pid 5142] munmap(0x7f5a20600000, 138412032 [pid 5141] <... munmap resumed>) = 0 [pid 5079] getdents64(4, [pid 5142] <... munmap resumed>) = 0 [pid 5140] close(3 [pid 5142] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5140] <... close resumed>) = 0 [pid 5142] <... openat resumed>) = 4 [pid 5140] close(4) = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [ 94.433737][ T5140] loop2: detected capacity change from 0 to 32768 [pid 5140] mkdir("./file0", 0777 [pid 5142] ioctl(4, LOOP_SET_FD, 3 [pid 5140] <... mkdir resumed>) = 0 [pid 5141] <... openat resumed>) = 4 [pid 5079] close(4 [pid 5141] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./10/file0" [pid 5140] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5142] <... ioctl resumed>) = 0 [pid 5141] <... ioctl resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5142] close(3 [pid 5141] close(3 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./10") = 0 [pid 5142] <... close resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5079] mkdir("./11", 0777 [pid 5142] close(4 [pid 5141] close(4 [pid 5142] <... close resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5142] mkdir("./file0", 0777 [pid 5141] mkdir("./file0", 0777 [pid 5142] <... mkdir resumed>) = 0 [pid 5141] <... mkdir resumed>) = 0 [pid 5142] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [ 94.475374][ T5142] loop3: detected capacity change from 0 to 32768 [ 94.483366][ T5141] loop4: detected capacity change from 0 to 32768 [ 94.504687][ T5140] [ 94.504687][ T5140] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.504687][ T5140] [pid 5141] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5140] <... mount resumed>) = 0 [pid 5140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5140] chdir("./file0") = 0 [pid 5140] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5140] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5140] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5140] exit_group(0) = ? [pid 5140] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=38 /* 0.38 s */} --- [pid 5142] <... mount resumed>) = 0 [pid 5142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5142] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5142] chdir("./file0" [pid 5081] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5142] <... chdir resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5142] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] newfstatat(3, "", [pid 5142] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./10/binderfs") = 0 [pid 5081] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 94.544680][ T5142] [ 94.544680][ T5142] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.544680][ T5142] [ 94.568245][ T5141] [ 94.568245][ T5141] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.568245][ T5141] [pid 5142] openat(AT_FDCWD, ".", O_RDONLY [pid 5141] <... mount resumed>) = 0 [pid 5141] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5142] <... openat resumed>) = 4 [pid 5141] <... openat resumed>) = 3 [pid 5141] chdir("./file0") = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5142] getdents64(4, [pid 5141] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5142] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5141] openat(AT_FDCWD, ".", O_RDONLY [pid 5142] exit_group(0 [pid 5141] <... openat resumed>) = 4 [pid 5141] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5141] exit_group(0) = ? [pid 5141] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=27 /* 0.27 s */} --- [pid 5083] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 94.597478][ T2436] [ 94.597478][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.597478][ T2436] [ 94.637636][ T2436] [ 94.637636][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.637636][ T2436] [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5142] <... exit_group resumed>) = ? [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5142] +++ exited with 0 +++ [pid 5083] unlink("./10/binderfs") = 0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=32 /* 0.32 s */} --- [pid 5083] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./10/binderfs") = 0 [ 94.687435][ T62] [ 94.687435][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.687435][ T62] [ 94.699361][ T5081] [ 94.699361][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.699361][ T5081] [ 94.710576][ T1837] [ 94.710576][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.710576][ T1837] [ 94.721352][ T111] [ 94.721352][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.721352][ T111] [ 94.727412][ T62] [ 94.727412][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.727412][ T62] [ 94.743663][ T1837] [ 94.743663][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.743663][ T1837] [ 94.745960][ T5081] [ 94.745960][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.745960][ T5081] [ 94.767733][ T111] [ 94.767733][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.767733][ T111] [pid 5082] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = 0 [ 94.785852][ T112] [ 94.785852][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.785852][ T112] [ 94.785850][ T5082] [ 94.785850][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.785850][ T5082] [ 94.785898][ T5083] [ 94.785898][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.785898][ T5083] [ 94.819167][ T5082] [ 94.819167][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.819167][ T5082] [pid 5080] <... ioctl resumed>) = 0 [pid 5081] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./10/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./10") = 0 [pid 5081] mkdir("./11", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5080] close(3 [pid 5083] <... umount2 resumed>) = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5083] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./10/file0", [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5079] close(3 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] newfstatat(AT_FDCWD, "./10/file0", [pid 5083] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [ 94.843057][ T5083] [ 94.843057][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 94.843057][ T5083] [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5143 attached [pid 5083] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5143 [pid 5143] set_robust_list(0x55557f81b660, 24) = 0 [pid 5083] <... openat resumed>) = 4 [pid 5082] <... openat resumed>) = 4 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5144 ./strace-static-x86_64: Process 5144 attached [pid 5143] chdir("./11" [pid 5083] newfstatat(4, "", [pid 5082] newfstatat(4, "", [pid 5143] <... chdir resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] getdents64(4, [pid 5143] setpgid(0, 0 [pid 5144] set_robust_list(0x55557f81b660, 24 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5143] <... setpgid resumed>) = 0 [pid 5082] getdents64(4, [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5144] <... set_robust_list resumed>) = 0 [pid 5083] getdents64(4, [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5143] <... openat resumed>) = 3 [pid 5144] chdir("./11" [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] close(4 [pid 5143] write(3, "1000", 4 [pid 5144] <... chdir resumed>) = 0 [pid 5083] getdents64(4, [pid 5082] <... close resumed>) = 0 [pid 5143] <... write resumed>) = 4 [pid 5143] close(3 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] rmdir("./10/file0" [pid 5143] <... close resumed>) = 0 [pid 5144] <... prctl resumed>) = 0 [pid 5083] close(4 [pid 5143] symlink("/dev/binderfs", "./binderfs" [pid 5144] setpgid(0, 0 [pid 5083] <... close resumed>) = 0 [pid 5143] <... symlink resumed>) = 0 [pid 5144] <... setpgid resumed>) = 0 [pid 5083] rmdir("./10/file0" [pid 5143] memfd_create("syzkaller", 0 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... rmdir resumed>) = 0 [pid 5143] <... memfd_create resumed>) = 3 [pid 5144] <... openat resumed>) = 3 [pid 5082] <... rmdir resumed>) = 0 [pid 5144] write(3, "1000", 4) = 4 [pid 5082] getdents64(3, [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5144] close(3 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5143] <... mmap resumed>) = 0x7f5a20600000 [pid 5144] <... close resumed>) = 0 [pid 5083] getdents64(3, [pid 5082] close(3 [pid 5144] symlink("/dev/binderfs", "./binderfs" [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./10" [pid 5144] <... symlink resumed>) = 0 [pid 5083] close(3 [pid 5082] <... rmdir resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5082] mkdir("./11", 0777 [pid 5083] rmdir("./10") = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5083] mkdir("./11", 0777) = 0 [pid 5144] memfd_create("syzkaller", 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5144] <... memfd_create resumed>) = 3 [pid 5083] <... openat resumed>) = 3 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5144] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5145 ./strace-static-x86_64: Process 5145 attached [pid 5145] set_robust_list(0x55557f81b660, 24) = 0 [pid 5145] chdir("./11") = 0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5145] setpgid(0, 0) = 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5145] write(3, "1000", 4) = 4 [pid 5145] close(3) = 0 [pid 5145] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5145] memfd_create("syzkaller", 0) = 3 [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5146 attached [pid 5083] <... ioctl resumed>) = 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5146 [pid 5146] set_robust_list(0x55557f81b660, 24 [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"..., 16777216 [pid 5083] close(3 [pid 5146] <... set_robust_list resumed>) = 0 [pid 5146] chdir("./11" [pid 5083] <... close resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] <... chdir resumed>) = 0 [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 ./strace-static-x86_64: Process 5147 attached [pid 5147] set_robust_list(0x55557f81b660, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5147 [pid 5147] <... set_robust_list resumed>) = 0 [pid 5147] chdir("./11") = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5147] setpgid(0, 0) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5146] write(3, "1000", 4 [pid 5147] write(3, "1000", 4 [pid 5146] <... write resumed>) = 4 [pid 5147] <... write resumed>) = 4 [pid 5146] close(3 [pid 5147] close(3 [pid 5146] <... close resumed>) = 0 [pid 5147] <... close resumed>) = 0 [pid 5146] symlink("/dev/binderfs", "./binderfs" [pid 5147] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5147] memfd_create("syzkaller", 0) = 3 [pid 5146] <... symlink resumed>) = 0 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5146] memfd_create("syzkaller", 0 [pid 5147] <... mmap resumed>) = 0x7f5a20600000 [pid 5146] <... memfd_create resumed>) = 3 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5143] <... write resumed>) = 16777216 [pid 5143] munmap(0x7f5a20600000, 138412032) = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5143] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5143] close(3) = 0 [pid 5143] close(4) = 0 [pid 5143] mkdir("./file0", 0777) = 0 [ 95.782589][ T5143] loop1: detected capacity change from 0 to 32768 [pid 5143] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [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"..., 16777216 [pid 5143] <... mount resumed>) = 0 [pid 5143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5143] chdir("./file0") = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5143] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5143] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5143] exit_group(0) = ? [pid 5143] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=28 /* 0.28 s */} --- [ 95.849616][ T5143] [ 95.849616][ T5143] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 95.849616][ T5143] [pid 5080] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", [pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./11/binderfs") = 0 [ 95.937756][ T62] [ 95.937756][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 95.937756][ T62] [ 95.960136][ T62] [ 95.960136][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 95.960136][ T62] [pid 5080] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5144] <... write resumed>) = 16777216 [ 96.002685][ T5080] [ 96.002685][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.002685][ T5080] [ 96.037514][ T112] [ 96.037514][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.037514][ T112] [ 96.049473][ T5080] [pid 5144] munmap(0x7f5a20600000, 138412032) = 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 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5144] close(4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5144] <... close resumed>) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./11/file0") = 0 [pid 5144] mkdir("./file0", 0777 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./11" [pid 5144] <... mkdir resumed>) = 0 [pid 5144] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] <... rmdir resumed>) = 0 [pid 5080] mkdir("./12", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 96.049473][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.049473][ T5080] [ 96.073046][ T5144] loop0: detected capacity change from 0 to 32768 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5144] <... mount resumed>) = 0 [pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5144] chdir("./file0") = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5144] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5144] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5144] exit_group(0) = ? [ 96.161483][ T5144] [ 96.161483][ T5144] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.161483][ T5144] [pid 5144] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=34 /* 0.34 s */} --- [pid 5079] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./11/binderfs") = 0 [pid 5079] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5145] <... write resumed>) = 16777216 [ 96.268252][ T11] [ 96.268252][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.268252][ T11] [ 96.288595][ T11] [ 96.288595][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.288595][ T11] [ 96.312085][ T111] [pid 5145] munmap(0x7f5a20600000, 138412032) = 0 [pid 5145] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5145] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5145] close(3) = 0 [pid 5145] close(4) = 0 [pid 5145] mkdir("./file0", 0777) = 0 [ 96.312085][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.312085][ T111] [ 96.329803][ T5079] [ 96.329803][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.329803][ T5079] [ 96.341648][ T5145] loop2: detected capacity change from 0 to 32768 [ 96.353006][ T5079] [ 96.353006][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.353006][ T5079] [pid 5145] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./11/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./11") = 0 [pid 5079] mkdir("./12", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5145] <... mount resumed>) = 0 [pid 5147] <... write resumed>) = 16777216 [pid 5146] <... write resumed>) = 16777216 [pid 5147] munmap(0x7f5a20600000, 138412032 [pid 5146] munmap(0x7f5a20600000, 138412032 [ 96.433852][ T5145] [ 96.433852][ T5145] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.433852][ T5145] [pid 5145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5145] chdir("./file0") = 0 [pid 5145] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5147] <... munmap resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5145] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5080] close(3 [pid 5146] <... munmap resumed>) = 0 [pid 5145] getdents64(4, [pid 5080] <... close resumed>) = 0 [pid 5145] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5147] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5145] exit_group(0 [pid 5147] <... openat resumed>) = 4 [pid 5147] ioctl(4, LOOP_SET_FD, 3 [pid 5145] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5148 attached [pid 5146] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5145] +++ exited with 0 +++ [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5148 [pid 5148] set_robust_list(0x55557f81b660, 24 [pid 5146] <... openat resumed>) = 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=26 /* 0.26 s */} --- [pid 5148] <... set_robust_list resumed>) = 0 [pid 5148] chdir("./12") = 0 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5148] setpgid(0, 0) = 0 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5146] ioctl(4, LOOP_SET_FD, 3 [pid 5081] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5148] write(3, "1000", 4) = 4 [pid 5148] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5148] <... close resumed>) = 0 [pid 5148] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5148] memfd_create("syzkaller", 0 [pid 5147] <... ioctl resumed>) = 0 [pid 5148] <... memfd_create resumed>) = 3 [pid 5147] close(3 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5147] <... close resumed>) = 0 [pid 5148] <... mmap resumed>) = 0x7f5a20600000 [pid 5147] close(4) = 0 [pid 5081] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5147] mkdir("./file0", 0777 [pid 5081] <... openat resumed>) = 3 [pid 5147] <... mkdir resumed>) = 0 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5146] <... ioctl resumed>) = 0 [pid 5081] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5146] close(3) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5147] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5146] close(4) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./11/binderfs" [ 96.521163][ T5147] loop4: detected capacity change from 0 to 32768 [ 96.548676][ T5146] loop3: detected capacity change from 0 to 32768 [pid 5146] mkdir("./file0", 0777) = 0 [pid 5146] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... unlink resumed>) = 0 [pid 5081] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5147] <... mount resumed>) = 0 [pid 5147] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5147] chdir("./file0") = 0 [ 96.584698][ T5147] [ 96.584698][ T5147] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.584698][ T5147] [ 96.612624][ T62] [ 96.612624][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.612624][ T62] [pid 5147] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5147] openat(AT_FDCWD, ".", O_RDONLY [pid 5146] <... mount resumed>) = 0 [pid 5147] <... openat resumed>) = 4 [pid 5146] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5147] getdents64(4, [pid 5146] <... openat resumed>) = 3 [pid 5146] chdir("./file0" [pid 5147] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5146] <... chdir resumed>) = 0 [pid 5147] exit_group(0) = ? [pid 5147] +++ exited with 0 +++ [ 96.638615][ T5146] [ 96.638615][ T5146] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.638615][ T5146] [ 96.667917][ T62] [ 96.667917][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.667917][ T62] [pid 5146] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=39 /* 0.39 s */} --- [pid 5146] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5146] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5146] <... openat resumed>) = 4 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5146] getdents64(4, [pid 5083] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5146] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(3, "", [pid 5146] exit_group(0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5146] <... exit_group resumed>) = ? [pid 5146] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=27 /* 0.27 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./11/binderfs") = 0 [pid 5082] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 96.698214][ T112] [ 96.698214][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.698214][ T112] [ 96.716721][ T5081] [ 96.716721][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.716721][ T5081] [ 96.727885][ T5081] [ 96.727885][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.727885][ T5081] [ 96.740639][ T62] [pid 5083] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./11/binderfs") = 0 [pid 5083] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = 0 [ 96.740639][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.740639][ T62] [ 96.752686][ T62] [ 96.752686][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.752686][ T62] [ 96.777615][ T11] [ 96.777615][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.777615][ T11] [ 96.788562][ T111] [ 96.788562][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.788562][ T111] [pid 5081] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3 [pid 5081] <... openat resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5081] newfstatat(4, "", [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5149 attached [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5149 [pid 5149] set_robust_list(0x55557f81b660, 24 [pid 5081] getdents64(4, [pid 5149] <... set_robust_list resumed>) = 0 [ 96.801434][ T5082] [ 96.801434][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.801434][ T5082] [ 96.812386][ T11] [ 96.812386][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.812386][ T11] [ 96.824723][ T5082] [ 96.824723][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.824723][ T5082] [ 96.846896][ T112] [pid 5149] chdir("./12" [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, [pid 5149] <... chdir resumed>) = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5149] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5149] <... setpgid resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] close(4 [pid 5082] <... umount2 resumed>) = 0 [pid 5149] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5149] write(3, "1000", 4 [pid 5081] rmdir("./11/file0" [pid 5149] <... write resumed>) = 4 [pid 5149] close(3 [pid 5082] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./11/file0", [pid 5149] <... close resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5149] symlink("/dev/binderfs", "./binderfs" [pid 5081] getdents64(3, [pid 5149] <... symlink resumed>) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5082] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5149] memfd_create("syzkaller", 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5149] <... memfd_create resumed>) = 3 [pid 5083] newfstatat(AT_FDCWD, "./11/file0", [pid 5082] <... openat resumed>) = 4 [pid 5081] close(3 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] newfstatat(4, "", [pid 5149] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... close resumed>) = 0 [pid 5083] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5083] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] rmdir("./11/file0" [pid 5083] <... openat resumed>) = 4 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3 [pid 5083] newfstatat(4, "", [pid 5082] <... close resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] rmdir("./11") = 0 [pid 5081] rmdir("./11" [pid 5083] getdents64(4, [pid 5082] mkdir("./12", 0777 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] <... mkdir resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5083] getdents64(4, [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5081] mkdir("./12", 0777 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] close(4) = 0 [pid 5083] rmdir("./11/file0" [pid 5081] <... mkdir resumed>) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5083] close(3) = 0 [pid 5083] rmdir("./11" [pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... rmdir resumed>) = 0 [ 96.846896][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.846896][ T112] [ 96.859003][ T5083] [ 96.859003][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.859003][ T5083] [ 96.874530][ T5083] [ 96.874530][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 96.874530][ T5083] [pid 5083] mkdir("./12", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5150 ./strace-static-x86_64: Process 5150 attached [pid 5150] set_robust_list(0x55557f81b660, 24) = 0 [pid 5150] chdir("./12") = 0 [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5150] setpgid(0, 0) = 0 [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5150] write(3, "1000", 4) = 4 [pid 5150] close(3) = 0 [pid 5150] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5150] memfd_create("syzkaller", 0) = 3 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5148] <... write resumed>) = 16777216 [pid 5083] <... ioctl resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5148] munmap(0x7f5a20600000, 138412032 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5151 ./strace-static-x86_64: Process 5151 attached [pid 5151] set_robust_list(0x55557f81b660, 24 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5152 [pid 5151] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5152 attached [pid 5151] chdir("./12" [pid 5152] set_robust_list(0x55557f81b660, 24) = 0 [pid 5151] <... chdir resumed>) = 0 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] chdir("./12" [pid 5151] setpgid(0, 0) = 0 [pid 5152] <... chdir resumed>) = 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] <... munmap resumed>) = 0 [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... openat resumed>) = 3 [pid 5152] <... prctl resumed>) = 0 [pid 5151] write(3, "1000", 4 [pid 5152] setpgid(0, 0 [pid 5151] <... write resumed>) = 4 [pid 5152] <... setpgid resumed>) = 0 [pid 5151] close(3 [pid 5148] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5151] <... close resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] symlink("/dev/binderfs", "./binderfs" [pid 5148] <... openat resumed>) = 4 [pid 5152] <... openat resumed>) = 3 [pid 5151] <... symlink resumed>) = 0 [pid 5148] ioctl(4, LOOP_SET_FD, 3 [pid 5152] write(3, "1000", 4 [pid 5148] <... ioctl resumed>) = 0 [pid 5152] <... write resumed>) = 4 [pid 5152] close(3) = 0 [pid 5152] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5151] memfd_create("syzkaller", 0 [pid 5152] memfd_create("syzkaller", 0 [pid 5148] close(3 [pid 5152] <... memfd_create resumed>) = 3 [pid 5151] <... memfd_create resumed>) = 3 [pid 5148] <... close resumed>) = 0 [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5148] close(4) = 0 [pid 5152] <... mmap resumed>) = 0x7f5a20600000 [pid 5151] <... mmap resumed>) = 0x7f5a20600000 [ 97.447216][ T5148] loop1: detected capacity change from 0 to 32768 [pid 5148] mkdir("./file0", 0777) = 0 [pid 5148] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5148] chdir("./file0") = 0 [pid 5148] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 97.551012][ T5148] [ 97.551012][ T5148] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 97.551012][ T5148] [pid 5148] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5148] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5148] exit_group(0) = ? [pid 5148] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=23 /* 0.23 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./12/binderfs") = 0 [pid 5080] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 97.665932][ T11] [ 97.665932][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 97.665932][ T11] [ 97.688424][ T11] [ 97.688424][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 97.688424][ T11] [ 97.718888][ T112] [ 97.718888][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 97.718888][ T112] [ 97.757634][ T5080] [ 97.757634][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 97.757634][ T5080] [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"..., 16777216 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, [pid 5149] <... write resumed>) = 16777216 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5149] munmap(0x7f5a20600000, 138412032 [pid 5080] close(4) = 0 [pid 5080] rmdir("./12/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [ 97.785874][ T5080] [ 97.785874][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 97.785874][ T5080] [pid 5080] close(3) = 0 [pid 5080] rmdir("./12") = 0 [pid 5080] mkdir("./13", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5149] <... munmap resumed>) = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5149] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5149] close(3) = 0 [pid 5149] close(4) = 0 [pid 5149] mkdir("./file0", 0777 [pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5149] <... mkdir resumed>) = 0 [pid 5149] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 97.909214][ T5149] loop0: detected capacity change from 0 to 32768 [pid 5152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5149] <... mount resumed>) = 0 [pid 5149] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5149] chdir("./file0") = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 97.961514][ T5149] [ 97.961514][ T5149] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 97.961514][ T5149] [pid 5149] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5149] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5149] exit_group(0) = ? [pid 5149] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=33 /* 0.33 s */} --- [pid 5079] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./12/binderfs") = 0 [ 98.083054][ T62] [ 98.083054][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.083054][ T62] [ 98.118054][ T62] [ 98.118054][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.118054][ T62] [ 98.161626][ T112] [ 98.161626][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.161626][ T112] [ 98.203606][ T5079] [ 98.203606][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.203606][ T5079] [pid 5079] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5153 attached [pid 5153] set_robust_list(0x55557f81b660, 24) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5153 [pid 5153] chdir("./13") = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5153] setpgid(0, 0) = 0 [ 98.247799][ T5079] [ 98.247799][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.247799][ T5079] [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5150] <... write resumed>) = 16777216 [pid 5079] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5150] munmap(0x7f5a20600000, 138412032 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5153] <... openat resumed>) = 3 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, [pid 5153] write(3, "1000", 4 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5153] <... write resumed>) = 4 [pid 5153] close(3) = 0 [pid 5079] close(4 [pid 5153] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./12/file0" [pid 5153] <... symlink resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./12") = 0 [pid 5153] memfd_create("syzkaller", 0) = 3 [pid 5150] <... munmap resumed>) = 0 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] mkdir("./13", 0777) = 0 [pid 5153] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5150] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5150] <... openat resumed>) = 4 [pid 5150] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5150] close(3) = 0 [pid 5150] close(4) = 0 [ 98.355076][ T5150] loop2: detected capacity change from 0 to 32768 [pid 5150] mkdir("./file0", 0777) = 0 [pid 5150] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5152] <... write resumed>) = 16777216 [pid 5152] munmap(0x7f5a20600000, 138412032 [pid 5151] <... write resumed>) = 16777216 [pid 5151] munmap(0x7f5a20600000, 138412032 [pid 5152] <... munmap resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5150] <... mount resumed>) = 0 [pid 5150] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5152] <... openat resumed>) = 4 [pid 5152] ioctl(4, LOOP_SET_FD, 3 [pid 5150] <... openat resumed>) = 3 [ 98.450841][ T5150] [ 98.450841][ T5150] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.450841][ T5150] [pid 5150] chdir("./file0") = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5152] <... ioctl resumed>) = 0 [pid 5151] <... munmap resumed>) = 0 [pid 5150] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5152] close(3 [pid 5150] openat(AT_FDCWD, ".", O_RDONLY [pid 5152] <... close resumed>) = 0 [pid 5150] <... openat resumed>) = 4 [pid 5152] close(4 [pid 5151] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5150] getdents64(4, [pid 5152] <... close resumed>) = 0 [pid 5152] mkdir("./file0", 0777 [pid 5151] <... openat resumed>) = 4 [pid 5150] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5151] ioctl(4, LOOP_SET_FD, 3 [pid 5152] <... mkdir resumed>) = 0 [pid 5151] <... ioctl resumed>) = 0 [pid 5150] exit_group(0 [pid 5152] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5150] <... exit_group resumed>) = ? [ 98.510136][ T5152] loop3: detected capacity change from 0 to 32768 [ 98.548527][ T5151] loop4: detected capacity change from 0 to 32768 [pid 5151] close(3 [pid 5150] +++ exited with 0 +++ [pid 5151] <... close resumed>) = 0 [pid 5151] close(4) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5151] mkdir("./file0", 0777 [pid 5081] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5151] <... mkdir resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5151] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5152] <... mount resumed>) = 0 [pid 5081] getdents64(3, [pid 5152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5152] <... openat resumed>) = 3 [pid 5081] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [ 98.570010][ T5152] [ 98.570010][ T5152] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.570010][ T5152] [pid 5152] chdir("./file0" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5152] <... chdir resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5152] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5152] openat(AT_FDCWD, ".", O_RDONLY [pid 5081] unlink("./12/binderfs" [pid 5152] <... openat resumed>) = 4 [pid 5152] getdents64(4, [pid 5081] <... unlink resumed>) = 0 [pid 5152] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5152] exit_group(0) = ? [pid 5081] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5152] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./12/binderfs") = 0 [ 98.642781][ T2445] [ 98.642781][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.642781][ T2445] [ 98.654422][ T5151] [ 98.654422][ T5151] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.654422][ T5151] [ 98.679582][ T2445] [ 98.679582][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.679582][ T2445] [pid 5082] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5151] <... mount resumed>) = 0 [pid 5151] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 98.692050][ T62] [ 98.692050][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.692050][ T62] [ 98.698141][ T111] [ 98.698141][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.698141][ T111] [ 98.714915][ T62] [ 98.714915][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.714915][ T62] [ 98.737345][ T5081] [pid 5151] chdir("./file0") = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5151] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5151] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5151] exit_group(0) = ? [pid 5151] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=26 /* 0.26 s */} --- [pid 5083] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... ioctl resumed>) = 0 [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"..., 16777216 [pid 5083] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5154 ./strace-static-x86_64: Process 5154 attached [pid 5154] set_robust_list(0x55557f81b660, 24) = 0 [pid 5154] chdir("./13" [pid 5083] <... openat resumed>) = 3 [pid 5154] <... chdir resumed>) = 0 [pid 5083] newfstatat(3, "", [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5154] <... prctl resumed>) = 0 [pid 5083] getdents64(3, [pid 5154] setpgid(0, 0) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5154] <... openat resumed>) = 3 [pid 5083] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5154] write(3, "1000", 4) = 4 [pid 5154] close(3 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5154] <... close resumed>) = 0 [pid 5154] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5083] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5154] memfd_create("syzkaller", 0) = 3 [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] unlink("./12/binderfs" [pid 5154] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] <... unlink resumed>) = 0 [ 98.737345][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.737345][ T5081] [ 98.739858][ T112] [ 98.739858][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.739858][ T112] [ 98.755219][ T5081] [ 98.755219][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.755219][ T5081] [pid 5083] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 98.798010][ T5082] [ 98.798010][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.798010][ T5082] [ 98.798411][ T62] [ 98.798411][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.798411][ T62] [ 98.814887][ T5082] [ 98.814887][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.814887][ T5082] [pid 5081] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] <... umount2 resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", [pid 5082] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] getdents64(4, [pid 5082] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] getdents64(4, [pid 5082] <... openat resumed>) = 4 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] newfstatat(4, "", [pid 5081] close(4 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, [pid 5081] <... close resumed>) = 0 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] rmdir("./12/file0" [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./12/file0") = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5082] getdents64(3, [pid 5081] getdents64(3, [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3 [pid 5081] close(3 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./12") = 0 [pid 5082] mkdir("./13", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./12" [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5081] <... rmdir resumed>) = 0 [ 98.849135][ T62] [ 98.849135][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.849135][ T62] [ 98.874067][ T5083] [ 98.874067][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.874067][ T5083] [pid 5081] mkdir("./13", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 98.899003][ T111] [ 98.899003][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.899003][ T111] [ 98.926014][ T5083] [ 98.926014][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 98.926014][ T5083] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./12/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./12") = 0 [pid 5083] mkdir("./13", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... ioctl resumed>) = 0 [pid 5153] <... write resumed>) = 16777216 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] munmap(0x7f5a20600000, 138412032./strace-static-x86_64: Process 5155 attached [pid 5155] set_robust_list(0x55557f81b660, 24) = 0 [pid 5155] chdir("./13" [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5155 [pid 5155] <... chdir resumed>) = 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 5153] <... munmap resumed>) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5081] close(3 [pid 5153] <... openat resumed>) = 4 [pid 5081] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] ioctl(4, LOOP_SET_FD, 3 [pid 5155] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 5156 attached [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5156] set_robust_list(0x55557f81b660, 24 [pid 5155] <... mmap resumed>) = 0x7f5a20600000 [pid 5153] <... ioctl resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5156 [pid 5156] <... set_robust_list resumed>) = 0 [pid 5156] chdir("./13") = 0 [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5156] setpgid(0, 0) = 0 [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5156] write(3, "1000", 4) = 4 [pid 5156] close(3) = 0 [pid 5156] symlink("/dev/binderfs", "./binderfs" [pid 5153] close(3 [pid 5156] <... symlink resumed>) = 0 [pid 5153] <... close resumed>) = 0 [ 99.328221][ T5153] loop1: detected capacity change from 0 to 32768 [pid 5156] memfd_create("syzkaller", 0 [pid 5153] close(4) = 0 [pid 5153] mkdir("./file0", 0777) = 0 [pid 5153] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5156] <... memfd_create resumed>) = 3 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5153] <... mount resumed>) = 0 [pid 5153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5153] chdir("./file0") = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5153] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 99.372214][ T5153] [ 99.372214][ T5153] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 99.372214][ T5153] [pid 5153] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5153] exit_group(0) = ? [pid 5153] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=28 /* 0.28 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5080] unlink("./13/binderfs") = 0 [pid 5080] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached [pid 5157] set_robust_list(0x55557f81b660, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5157 [pid 5157] <... set_robust_list resumed>) = 0 [pid 5157] chdir("./13") = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5157] setpgid(0, 0) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5157] write(3, "1000", 4) = 4 [pid 5157] close(3) = 0 [pid 5157] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5157] memfd_create("syzkaller", 0) = 3 [ 99.465393][ T62] [ 99.465393][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 99.465393][ T62] [ 99.498661][ T62] [ 99.498661][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 99.498661][ T62] [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 99.538217][ T5080] [ 99.538217][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 99.538217][ T5080] [ 99.578284][ T112] [ 99.578284][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 99.578284][ T112] [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 99.607695][ T5080] [ 99.607695][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 99.607695][ T5080] [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./13/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./13") = 0 [pid 5080] mkdir("./14", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5154] <... write resumed>) = 16777216 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5154] munmap(0x7f5a20600000, 138412032 [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"..., 16777216 [pid 5154] <... munmap resumed>) = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5154] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5154] close(3) = 0 [pid 5154] close(4) = 0 [pid 5154] mkdir("./file0", 0777) = 0 [ 99.834915][ T5154] loop0: detected capacity change from 0 to 32768 [pid 5154] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5154] chdir("./file0") = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 99.902342][ T5154] [ 99.902342][ T5154] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 99.902342][ T5154] [pid 5154] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5154] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5154] exit_group(0) = ? [pid 5154] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./13/binderfs") = 0 [pid 5079] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 100.008529][ T2445] [ 100.008529][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.008529][ T2445] [ 100.047356][ T2445] [ 100.047356][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.047356][ T2445] [ 100.077832][ T5079] [ 100.077832][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.077832][ T5079] [ 100.097722][ T111] [ 100.097722][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.097722][ T111] [ 100.122470][ T5079] [ 100.122470][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.122470][ T5079] [pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5080] close(3 [pid 5079] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5158 [pid 5079] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 5158 attached [pid 5158] set_robust_list(0x55557f81b660, 24) = 0 [pid 5158] chdir("./14") = 0 [pid 5079] newfstatat(4, "", [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5158] setpgid(0, 0 [pid 5079] getdents64(4, [pid 5158] <... setpgid resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5158] <... openat resumed>) = 3 [pid 5079] getdents64(4, [pid 5158] write(3, "1000", 4) = 4 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5158] close(3 [pid 5079] <... close resumed>) = 0 [pid 5158] <... close resumed>) = 0 [pid 5079] rmdir("./13/file0" [pid 5158] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... rmdir resumed>) = 0 [pid 5158] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5158] memfd_create("syzkaller", 0) = 3 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] close(3 [pid 5158] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./13") = 0 [pid 5079] mkdir("./14", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5156] <... write resumed>) = 16777216 [pid 5155] <... write resumed>) = 16777216 [pid 5155] munmap(0x7f5a20600000, 138412032 [pid 5156] munmap(0x7f5a20600000, 138412032 [pid 5155] <... munmap resumed>) = 0 [pid 5156] <... munmap resumed>) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5156] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5155] ioctl(4, LOOP_SET_FD, 3 [pid 5156] ioctl(4, LOOP_SET_FD, 3 [pid 5155] <... ioctl resumed>) = 0 [pid 5155] close(3) = 0 [pid 5155] close(4 [pid 5156] <... ioctl resumed>) = 0 [pid 5155] <... close resumed>) = 0 [pid 5155] mkdir("./file0", 0777 [pid 5156] close(3) = 0 [pid 5155] <... mkdir resumed>) = 0 [pid 5156] close(4 [pid 5155] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5156] <... close resumed>) = 0 [pid 5156] mkdir("./file0", 0777) = 0 [pid 5156] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5157] <... write resumed>) = 16777216 [ 100.430483][ T5155] loop3: detected capacity change from 0 to 32768 [ 100.431417][ T5156] loop2: detected capacity change from 0 to 32768 [pid 5157] munmap(0x7f5a20600000, 138412032 [pid 5155] <... mount resumed>) = 0 [pid 5155] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5156] <... mount resumed>) = 0 [pid 5155] chdir("./file0" [pid 5156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5155] <... chdir resumed>) = 0 [pid 5156] chdir("./file0" [pid 5155] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5156] <... chdir resumed>) = 0 [ 100.489339][ T5155] [ 100.489339][ T5155] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.489339][ T5155] [ 100.502577][ T5156] [ 100.502577][ T5156] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.502577][ T5156] [pid 5155] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5156] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5155] openat(AT_FDCWD, ".", O_RDONLY [pid 5156] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5155] <... openat resumed>) = 4 [pid 5156] openat(AT_FDCWD, ".", O_RDONLY [pid 5155] getdents64(4, [pid 5156] <... openat resumed>) = 4 [pid 5155] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5157] <... munmap resumed>) = 0 [pid 5156] getdents64(4, [pid 5155] exit_group(0 [pid 5156] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5156] exit_group(0 [pid 5155] <... exit_group resumed>) = ? [pid 5157] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5156] <... exit_group resumed>) = ? [pid 5157] <... openat resumed>) = 4 [pid 5156] +++ exited with 0 +++ [pid 5155] +++ exited with 0 +++ [pid 5157] ioctl(4, LOOP_SET_FD, 3 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=29 /* 0.29 s */} --- [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=25 /* 0.25 s */} --- [pid 5157] <... ioctl resumed>) = 0 [pid 5082] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 3 [pid 5082] newfstatat(3, "", [pid 5081] newfstatat(3, "", [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, [pid 5081] getdents64(3, [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5081] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./13/binderfs" [pid 5081] unlink("./13/binderfs" [pid 5082] <... unlink resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5082] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 100.568266][ T5157] loop4: detected capacity change from 0 to 32768 [ 100.593803][ T2445] [ 100.593803][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.593803][ T2445] [ 100.593812][ T11] [ 100.593812][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.593812][ T11] [ 100.593834][ T11] [pid 5081] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5157] close(3) = 0 [pid 5157] close(4) = 0 [pid 5157] mkdir("./file0", 0777) = 0 [ 100.593834][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.593834][ T11] [ 100.637857][ T2445] [ 100.637857][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.637857][ T2445] [ 100.658868][ T5157] [ 100.658868][ T5157] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5157] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5157] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5157] chdir("./file0") = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5157] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5157] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5157] exit_group(0) = ? [pid 5157] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=44 /* 0.44 s */} --- [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5083] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 100.658868][ T5157] [ 100.669035][ T112] [ 100.669035][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.669035][ T112] [ 100.687719][ T5082] [ 100.687719][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.687719][ T5082] [ 100.700563][ T5081] [ 100.700563][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.700563][ T5081] [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5159 [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] getdents64(3, ./strace-static-x86_64: Process 5159 attached [pid 5159] set_robust_list(0x55557f81b660, 24) = 0 [pid 5159] chdir("./14") = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5159] setpgid(0, 0) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5159] write(3, "1000", 4) = 4 [pid 5159] close(3) = 0 [pid 5159] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5159] memfd_create("syzkaller", 0) = 3 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5159] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 100.724596][ T5082] [ 100.724596][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.724596][ T5082] [ 100.744077][ T112] [ 100.744077][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.744077][ T112] [ 100.767726][ T5081] [pid 5083] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./13/binderfs") = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5083] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./13/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./13") = 0 [ 100.767726][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.767726][ T5081] [ 100.786607][ T2436] [ 100.786607][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.786607][ T2436] [pid 5082] mkdir("./14", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 100.819960][ T2436] [ 100.819960][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.819960][ T2436] [ 100.847708][ T111] [ 100.847708][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.847708][ T111] [ 100.858931][ T5083] [ 100.858931][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.858931][ T5083] [pid 5081] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4 [pid 5083] <... umount2 resumed>) = 0 [pid 5081] <... close resumed>) = 0 [ 100.874213][ T5083] [ 100.874213][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 100.874213][ T5083] [pid 5081] rmdir("./13/file0") = 0 [pid 5081] getdents64(3, [pid 5083] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... close resumed>) = 0 [pid 5083] newfstatat(AT_FDCWD, "./13/file0", [pid 5081] rmdir("./13") = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] mkdir("./14", 0777 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] <... mkdir resumed>) = 0 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./13/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./13") = 0 [pid 5083] mkdir("./14", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5158] <... write resumed>) = 16777216 [pid 5158] munmap(0x7f5a20600000, 138412032) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5158] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5158] close(3) = 0 [pid 5158] close(4 [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"..., 16777216 [pid 5158] <... close resumed>) = 0 [pid 5158] mkdir("./file0", 0777) = 0 [ 101.128100][ T5158] loop1: detected capacity change from 0 to 32768 [pid 5158] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5160 attached [pid 5160] set_robust_list(0x55557f81b660, 24) = 0 [pid 5160] chdir("./14") = 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5160 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5160] setpgid(0, 0) = 0 [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5160] write(3, "1000", 4) = 4 [pid 5160] close(3) = 0 [pid 5160] symlink("/dev/binderfs", "./binderfs" [pid 5158] <... mount resumed>) = 0 [pid 5160] <... symlink resumed>) = 0 [pid 5158] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5160] memfd_create("syzkaller", 0) = 3 [ 101.202403][ T5158] [ 101.202403][ T5158] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.202403][ T5158] [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] chdir("./file0" [pid 5160] <... mmap resumed>) = 0x7f5a20600000 [pid 5158] <... chdir resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5158] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5158] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5158] exit_group(0) = ? [pid 5158] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=30 /* 0.30 s */} --- [pid 5080] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./14/binderfs") = 0 [pid 5080] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [ 101.315640][ T2445] [ 101.315640][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.315640][ T2445] [ 101.347280][ T2445] [ 101.347280][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.347280][ T2445] [pid 5083] <... ioctl resumed>) = 0 [pid 5081] close(3 [pid 5083] close(3 [pid 5081] <... close resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5161 attached [pid 5161] set_robust_list(0x55557f81b660, 24 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5161 [pid 5161] <... set_robust_list resumed>) = 0 [pid 5161] chdir("./14") = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [ 101.372792][ T5080] [ 101.372792][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.372792][ T5080] [ 101.387534][ T111] [ 101.387534][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.387534][ T111] [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5162 attached ) = 3 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5162] set_robust_list(0x55557f81b660, 24 [pid 5161] memfd_create("syzkaller", 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5162 [pid 5162] <... set_robust_list resumed>) = 0 [pid 5161] <... memfd_create resumed>) = 3 [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5162] chdir("./14") = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5162] setpgid(0, 0) = 0 [pid 5161] <... mmap resumed>) = 0x7f5a20600000 [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5162] write(3, "1000", 4) = 4 [pid 5162] close(3) = 0 [pid 5162] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5162] memfd_create("syzkaller", 0) = 3 [pid 5080] <... umount2 resumed>) = 0 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5162] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 101.428280][ T5080] [ 101.428280][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.428280][ T5080] [pid 5080] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./14/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./14") = 0 [pid 5080] mkdir("./15", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5159] <... write resumed>) = 16777216 [pid 5159] munmap(0x7f5a20600000, 138412032) = 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] close(4) = 0 [pid 5159] mkdir("./file0", 0777) = 0 [ 101.832821][ T5159] loop0: detected capacity change from 0 to 32768 [pid 5159] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5159] <... mount resumed>) = 0 [pid 5159] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5159] chdir("./file0") = 0 [pid 5159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5159] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5159] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5159] exit_group(0) = ? [ 101.899762][ T5159] [ 101.899762][ T5159] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.899762][ T5159] [pid 5159] +++ exited with 0 +++ [pid 5080] <... ioctl resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=36 /* 0.36 s */} --- [pid 5079] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./14/binderfs") = 0 [pid 5079] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] close(3 [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"..., 16777216 [pid 5080] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5163 ./strace-static-x86_64: Process 5163 attached [pid 5163] set_robust_list(0x55557f81b660, 24) = 0 [pid 5163] chdir("./15") = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5163] setpgid(0, 0) = 0 [ 101.963936][ T2445] [ 101.963936][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.963936][ T2445] [ 101.997243][ T2445] [ 101.997243][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 101.997243][ T2445] [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] write(3, "1000", 4) = 4 [pid 5163] close(3) = 0 [pid 5163] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5163] memfd_create("syzkaller", 0) = 3 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 102.037853][ T111] [ 102.037853][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.037853][ T111] [ 102.069113][ T5079] [ 102.069113][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.069113][ T5079] [ 102.089684][ T5079] [ 102.089684][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.089684][ T5079] [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./14/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./14") = 0 [pid 5079] mkdir("./15", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5160] <... write resumed>) = 16777216 [pid 5160] munmap(0x7f5a20600000, 138412032) = 0 [pid 5160] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5160] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5160] close(3) = 0 [pid 5160] close(4) = 0 [pid 5160] mkdir("./file0", 0777) = 0 [pid 5161] <... write resumed>) = 16777216 [pid 5161] munmap(0x7f5a20600000, 138412032 [ 102.335084][ T5160] loop3: detected capacity change from 0 to 32768 [pid 5160] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5161] <... munmap resumed>) = 0 [pid 5161] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5161] ioctl(4, LOOP_SET_FD, 3 [pid 5160] <... mount resumed>) = 0 [pid 5160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5161] <... ioctl resumed>) = 0 [pid 5160] <... openat resumed>) = 3 [pid 5161] close(3 [pid 5160] chdir("./file0" [pid 5161] <... close resumed>) = 0 [pid 5160] <... chdir resumed>) = 0 [pid 5161] close(4 [pid 5160] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5161] <... close resumed>) = 0 [pid 5160] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5161] mkdir("./file0", 0777 [pid 5160] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5160] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5161] <... mkdir resumed>) = 0 [pid 5160] exit_group(0 [pid 5161] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5160] <... exit_group resumed>) = ? [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5160] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=28 /* 0.28 s */} --- [ 102.400806][ T5160] [ 102.400806][ T5160] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.400806][ T5160] [ 102.440689][ T5161] loop2: detected capacity change from 0 to 32768 [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", [pid 5162] <... write resumed>) = 16777216 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5162] munmap(0x7f5a20600000, 138412032 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5161] <... mount resumed>) = 0 [pid 5161] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] unlink("./14/binderfs" [pid 5161] <... openat resumed>) = 3 [pid 5082] <... unlink resumed>) = 0 [pid 5161] chdir("./file0" [pid 5082] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5161] <... chdir resumed>) = 0 [pid 5161] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 102.480670][ T5161] [ 102.480670][ T5161] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.480670][ T5161] [pid 5161] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5162] <... munmap resumed>) = 0 [pid 5161] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5162] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5161] exit_group(0) = ? [pid 5162] <... openat resumed>) = 4 [pid 5162] ioctl(4, LOOP_SET_FD, 3 [pid 5161] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=32 /* 0.32 s */} --- [pid 5081] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5162] <... ioctl resumed>) = 0 [pid 5162] close(3) = 0 [pid 5162] close(4) = 0 [ 102.547024][ T2436] [ 102.547024][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.547024][ T2436] [ 102.566768][ T5162] loop4: detected capacity change from 0 to 32768 [ 102.587357][ T2436] [ 102.587357][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5162] mkdir("./file0", 0777 [pid 5081] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5162] <... mkdir resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./14/binderfs" [pid 5162] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... unlink resumed>) = 0 [ 102.587357][ T2436] [pid 5081] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [ 102.618778][ T5082] [ 102.618778][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.618778][ T5082] [ 102.631987][ T112] [ 102.631987][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.631987][ T112] [ 102.642914][ T2445] [ 102.642914][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.642914][ T2445] [ 102.654075][ T5082] [ 102.654075][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.654075][ T5082] [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5164 attached , child_tidptr=0x55557f81b650) = 5164 [pid 5164] set_robust_list(0x55557f81b660, 24) = 0 [pid 5164] chdir("./15") = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] <... umount2 resumed>) = 0 [pid 5164] <... prctl resumed>) = 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 [pid 5082] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5164] <... write resumed>) = 4 [pid 5164] close(3 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./14/file0", [pid 5164] <... close resumed>) = 0 [ 102.667139][ T5162] [ 102.667139][ T5162] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.667139][ T5162] [ 102.668436][ T2445] [ 102.668436][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.668436][ T2445] [pid 5164] symlink("/dev/binderfs", "./binderfs" [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5164] <... symlink resumed>) = 0 [pid 5082] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5164] memfd_create("syzkaller", 0 [pid 5082] <... openat resumed>) = 4 [pid 5164] <... memfd_create resumed>) = 3 [pid 5082] newfstatat(4, "", [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5162] <... mount resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5164] <... mmap resumed>) = 0x7f5a20600000 [pid 5162] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] getdents64(4, [pid 5162] <... openat resumed>) = 3 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5162] chdir("./file0") = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5162] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5162] openat(AT_FDCWD, ".", O_RDONLY [pid 5082] <... close resumed>) = 0 [pid 5162] <... openat resumed>) = 4 [pid 5162] getdents64(4, [pid 5082] rmdir("./14/file0" [pid 5162] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5162] exit_group(0) = ? [pid 5162] +++ exited with 0 +++ [pid 5082] <... rmdir resumed>) = 0 [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=27 /* 0.27 s */} --- [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3 [pid 5083] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... close resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] rmdir("./14" [pid 5083] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] <... rmdir resumed>) = 0 [pid 5083] newfstatat(3, "", [pid 5082] mkdir("./15", 0777) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] <... openat resumed>) = 3 [pid 5083] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./14/binderfs") = 0 [ 102.711811][ T111] [ 102.711811][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.711811][ T111] [ 102.743249][ T5081] [ 102.743249][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.743249][ T5081] [pid 5083] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./14/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./14") = 0 [pid 5081] mkdir("./15", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 102.776977][ T5081] [ 102.776977][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.776977][ T5081] [ 102.797861][ T2445] [ 102.797861][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.797861][ T2445] [ 102.841666][ T2445] [ 102.841666][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.841666][ T2445] [ 102.867628][ T5083] [ 102.867628][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.867628][ T5083] [ 102.883949][ T112] [ 102.883949][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.883949][ T112] [ 102.897318][ T5083] [ 102.897318][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 102.897318][ T5083] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5163] <... write resumed>) = 16777216 [pid 5163] munmap(0x7f5a20600000, 138412032 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./14/file0" [pid 5163] <... munmap resumed>) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5083] getdents64(3, [pid 5163] ioctl(4, LOOP_SET_FD, 3 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./14") = 0 [pid 5083] mkdir("./15", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5163] <... ioctl resumed>) = 0 [pid 5163] close(3) = 0 [pid 5163] close(4) = 0 [pid 5163] mkdir("./file0", 0777) = 0 [ 103.012208][ T5163] loop1: detected capacity change from 0 to 32768 [pid 5163] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5163] chdir("./file0") = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 103.090003][ T5163] [ 103.090003][ T5163] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.090003][ T5163] [pid 5163] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5163] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5163] exit_group(0 [pid 5082] <... ioctl resumed>) = 0 [pid 5163] <... exit_group resumed>) = ? [pid 5082] close(3 [pid 5163] +++ exited with 0 +++ [pid 5082] <... close resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=30 /* 0.30 s */} --- [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5165 attached [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5165 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5165] set_robust_list(0x55557f81b660, 24 [pid 5080] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5165] <... set_robust_list resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5165] chdir("./15" [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./15/binderfs" [pid 5164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... unlink resumed>) = 0 [pid 5080] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5165] <... chdir resumed>) = 0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] setpgid(0, 0) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5165] write(3, "1000", 4) = 4 [ 103.192580][ T2445] [ 103.192580][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.192580][ T2445] [ 103.211112][ T2445] [ 103.211112][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.211112][ T2445] [ 103.237673][ T5080] [pid 5165] close(3) = 0 [pid 5165] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... ioctl resumed>) = 0 [pid 5165] <... symlink resumed>) = 0 [pid 5081] close(3 [pid 5165] memfd_create("syzkaller", 0 [pid 5081] <... close resumed>) = 0 [pid 5165] <... memfd_create resumed>) = 3 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached [pid 5166] set_robust_list(0x55557f81b660, 24) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5166 [pid 5166] chdir("./15" [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] <... chdir resumed>) = 0 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] <... mmap resumed>) = 0x7f5a20600000 [pid 5166] <... prctl resumed>) = 0 [pid 5166] setpgid(0, 0) = 0 [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5166] write(3, "1000", 4) = 4 [pid 5166] close(3) = 0 [pid 5166] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5166] memfd_create("syzkaller", 0) = 3 [ 103.237673][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.237673][ T5080] [ 103.255121][ T111] [ 103.255121][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.255121][ T111] [ 103.280112][ T5080] [ 103.280112][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.280112][ T5080] [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./15/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./15") = 0 [pid 5080] mkdir("./16", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] <... ioctl resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5083] close(3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5083] <... close resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5167 attached , child_tidptr=0x55557f81b650) = 5167 [pid 5167] set_robust_list(0x55557f81b660, 24) = 0 [pid 5167] chdir("./15") = 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] memfd_create("syzkaller", 0) = 3 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5164] <... write resumed>) = 16777216 [pid 5164] munmap(0x7f5a20600000, 138412032) = 0 [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5164] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5164] close(3) = 0 [pid 5164] close(4) = 0 [pid 5164] mkdir("./file0", 0777) = 0 [ 103.766263][ T5164] loop0: detected capacity change from 0 to 32768 [pid 5164] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5168 attached [pid 5164] <... mount resumed>) = 0 [pid 5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5168] set_robust_list(0x55557f81b660, 24 [pid 5164] <... openat resumed>) = 3 [pid 5168] <... set_robust_list resumed>) = 0 [pid 5164] chdir("./file0" [pid 5168] chdir("./16" [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5168 [pid 5164] <... chdir resumed>) = 0 [pid 5168] <... chdir resumed>) = 0 [ 103.826646][ T5164] [ 103.826646][ T5164] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.826646][ T5164] [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5168] setpgid(0, 0) = 0 [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5168] <... openat resumed>) = 3 [pid 5164] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5168] write(3, "1000", 4 [pid 5164] getdents64(4, [pid 5168] <... write resumed>) = 4 [pid 5164] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5168] close(3 [pid 5164] exit_group(0 [pid 5168] <... close resumed>) = 0 [pid 5164] <... exit_group resumed>) = ? [pid 5168] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5168] memfd_create("syzkaller", 0 [pid 5164] +++ exited with 0 +++ [pid 5168] <... memfd_create resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=25 /* 0.25 s */} --- [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5168] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5079] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./15/binderfs") = 0 [pid 5079] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 103.970581][ T2445] [ 103.970581][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.970581][ T2445] [ 103.997258][ T2445] [ 103.997258][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 103.997258][ T2445] [ 104.047719][ T5079] [ 104.047719][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.047719][ T5079] [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5165] <... write resumed>) = 16777216 [pid 5165] munmap(0x7f5a20600000, 138412032 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 104.088197][ T112] [ 104.088197][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.088197][ T112] [ 104.127450][ T5079] [ 104.127450][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.127450][ T5079] [pid 5079] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5165] <... munmap resumed>) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./15/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./15") = 0 [pid 5165] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] mkdir("./16", 0777 [pid 5165] <... openat resumed>) = 4 [pid 5165] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5165] <... ioctl resumed>) = 0 [pid 5165] close(3) = 0 [pid 5165] close(4) = 0 [ 104.208231][ T5165] loop3: detected capacity change from 0 to 32768 [pid 5165] mkdir("./file0", 0777) = 0 [pid 5165] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5166] <... write resumed>) = 16777216 [pid 5166] munmap(0x7f5a20600000, 138412032) = 0 [pid 5165] <... mount resumed>) = 0 [pid 5165] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 104.309461][ T5165] [ 104.309461][ T5165] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.309461][ T5165] [pid 5165] chdir("./file0") = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5165] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [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"..., 16777216 [pid 5166] <... openat resumed>) = 4 [pid 5165] openat(AT_FDCWD, ".", O_RDONLY [pid 5166] ioctl(4, LOOP_SET_FD, 3 [pid 5165] <... openat resumed>) = 4 [pid 5167] <... write resumed>) = 16777216 [pid 5165] getdents64(4, [pid 5167] munmap(0x7f5a20600000, 138412032 [pid 5165] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5165] exit_group(0) = ? [pid 5165] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=29 /* 0.29 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...> [pid 5166] <... ioctl resumed>) = 0 [pid 5166] close(3) = 0 [pid 5166] close(4) = 0 [pid 5082] <... restart_syscall resumed>) = 0 [pid 5166] mkdir("./file0", 0777) = 0 [pid 5082] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5166] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./15/binderfs" [pid 5167] <... munmap resumed>) = 0 [pid 5167] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] <... unlink resumed>) = 0 [pid 5167] <... openat resumed>) = 4 [pid 5082] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 104.388266][ T5166] loop2: detected capacity change from 0 to 32768 [pid 5167] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5167] close(3) = 0 [pid 5167] close(4) = 0 [ 104.445082][ T5167] loop4: detected capacity change from 0 to 32768 [ 104.452050][ T2436] [ 104.452050][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.452050][ T2436] [ 104.480156][ T5166] [ 104.480156][ T5166] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.480156][ T5166] [pid 5167] mkdir("./file0", 0777) = 0 [pid 5167] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5166] <... mount resumed>) = 0 [pid 5166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5166] chdir("./file0") = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5166] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5166] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5166] exit_group(0) = ? [pid 5166] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=31 /* 0.31 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5167] <... mount resumed>) = 0 [ 104.498069][ T2436] [ 104.498069][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.498069][ T2436] [ 104.523650][ T5167] [ 104.523650][ T5167] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.523650][ T5167] [ 104.535141][ T5082] [ 104.535141][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.535141][ T5082] [pid 5081] unlink("./15/binderfs" [pid 5167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] <... unlink resumed>) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5081] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5167] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5167] chdir("./file0" [pid 5079] <... close resumed>) = 0 [pid 5167] <... chdir resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5167] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5169 [pid 5167] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5169 attached [pid 5167] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5167] getdents64(4, [pid 5169] set_robust_list(0x55557f81b660, 24) = 0 [pid 5167] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5167] exit_group(0) = ? [ 104.568501][ T111] [ 104.568501][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.568501][ T111] [ 104.581290][ T5082] [ 104.581290][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.581290][ T5082] [ 104.592961][ T2436] [ 104.592961][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.592961][ T2436] [pid 5169] chdir("./16" [pid 5167] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=42 /* 0.42 s */} --- [pid 5169] <... chdir resumed>) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5169] setpgid(0, 0 [pid 5083] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5169] <... setpgid resumed>) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5169] <... openat resumed>) = 3 [pid 5083] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5169] write(3, "1000", 4) = 4 [pid 5083] <... openat resumed>) = 3 [pid 5169] close(3 [pid 5083] newfstatat(3, "", [pid 5169] <... close resumed>) = 0 [pid 5169] symlink("/dev/binderfs", "./binderfs" [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5169] <... symlink resumed>) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5169] memfd_create("syzkaller", 0 [pid 5083] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5169] <... memfd_create resumed>) = 3 [pid 5083] unlink("./15/binderfs" [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] newfstatat(AT_FDCWD, "./15/file0", [pid 5083] <... unlink resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5169] <... mmap resumed>) = 0x7f5a20600000 [pid 5082] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, [pid 5083] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./15/file0") = 0 [ 104.619712][ T2436] [ 104.619712][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.619712][ T2436] [ 104.641355][ T5081] [ 104.641355][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.641355][ T5081] [ 104.657929][ T5081] [ 104.657929][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.657929][ T5081] [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./15") = 0 [pid 5082] mkdir("./16", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 104.691499][ T112] [ 104.691499][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.691499][ T112] [ 104.702449][ T2445] [ 104.702449][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.702449][ T2445] [ 104.716716][ T2445] [ 104.716716][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.716716][ T2445] [ 104.747632][ T5083] [ 104.747632][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.747632][ T5083] [ 104.777510][ T111] [ 104.777510][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.777510][ T111] [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [ 104.811725][ T5083] [ 104.811725][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 104.811725][ T5083] [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./15/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./15") = 0 [pid 5083] mkdir("./16", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5168] <... write resumed>) = 16777216 [pid 5169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5168] munmap(0x7f5a20600000, 138412032) = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5168] <... openat resumed>) = 4 [pid 5081] newfstatat(AT_FDCWD, "./15/file0", [pid 5168] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./15/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5168] <... ioctl resumed>) = 0 [pid 5168] close(3 [pid 5081] close(3 [pid 5168] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5168] close(4 [pid 5081] rmdir("./15" [pid 5168] <... close resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5168] mkdir("./file0", 0777) = 0 [pid 5081] mkdir("./16", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [ 104.993521][ T5168] loop1: detected capacity change from 0 to 32768 [pid 5168] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5170 ./strace-static-x86_64: Process 5170 attached [ 105.040708][ T5168] [ 105.040708][ T5168] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.040708][ T5168] [pid 5170] set_robust_list(0x55557f81b660, 24) = 0 [pid 5168] <... mount resumed>) = 0 [pid 5170] chdir("./16" [pid 5168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5170] <... chdir resumed>) = 0 [pid 5168] <... openat resumed>) = 3 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5168] chdir("./file0" [pid 5170] setpgid(0, 0 [pid 5168] <... chdir resumed>) = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5170] <... setpgid resumed>) = 0 [pid 5168] openat(AT_FDCWD, ".", O_RDONLY [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] <... openat resumed>) = 4 [pid 5168] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5168] exit_group(0) = ? [pid 5170] <... openat resumed>) = 3 [pid 5170] write(3, "1000", 4 [pid 5168] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=27 /* 0.27 s */} --- [pid 5080] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5170] <... write resumed>) = 4 [pid 5080] newfstatat(3, "", [pid 5170] close(3 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5170] <... close resumed>) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5170] symlink("/dev/binderfs", "./binderfs" [pid 5080] unlink("./16/binderfs" [pid 5170] <... symlink resumed>) = 0 [pid 5170] memfd_create("syzkaller", 0) = 3 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... unlink resumed>) = 0 [ 105.197434][ T2436] [ 105.197434][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.197434][ T2436] [ 105.220192][ T2436] [ 105.220192][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.220192][ T2436] [pid 5080] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5171 ./strace-static-x86_64: Process 5171 attached [pid 5171] set_robust_list(0x55557f81b660, 24) = 0 [pid 5171] chdir("./16") = 0 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5171] write(3, "1000", 4) = 4 [pid 5171] close(3) = 0 [pid 5171] symlink("/dev/binderfs", "./binderfs") = 0 [ 105.257852][ T112] [ 105.257852][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.257852][ T112] [ 105.287397][ T5080] [ 105.287397][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.287397][ T5080] [pid 5171] memfd_create("syzkaller", 0) = 3 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 105.319066][ T5080] [ 105.319066][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.319066][ T5080] [pid 5080] <... umount2 resumed>) = 0 [pid 5169] <... write resumed>) = 16777216 [pid 5081] <... ioctl resumed>) = 0 [pid 5080] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5169] munmap(0x7f5a20600000, 138412032 [pid 5081] <... close resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./16/file0", [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5172 attached [pid 5080] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5172 [pid 5172] set_robust_list(0x55557f81b660, 24) = 0 [pid 5172] chdir("./16" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5172] <... chdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5172] setpgid(0, 0) = 0 [pid 5080] newfstatat(4, "", [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5172] write(3, "1000", 4 [pid 5080] getdents64(4, [pid 5172] <... write resumed>) = 4 [pid 5172] close(3 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5172] <... close resumed>) = 0 [pid 5080] getdents64(4, [pid 5172] symlink("/dev/binderfs", "./binderfs" [pid 5170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5172] <... symlink resumed>) = 0 [pid 5169] <... munmap resumed>) = 0 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5172] memfd_create("syzkaller", 0 [pid 5169] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] close(4 [pid 5172] <... memfd_create resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5169] <... openat resumed>) = 4 [pid 5080] rmdir("./16/file0") = 0 [pid 5169] ioctl(4, LOOP_SET_FD, 3 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./16") = 0 [pid 5080] mkdir("./17", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5169] <... ioctl resumed>) = 0 [pid 5169] close(3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5169] <... close resumed>) = 0 [pid 5169] close(4) = 0 [pid 5169] mkdir("./file0", 0777) = 0 [ 105.516706][ T5169] loop0: detected capacity change from 0 to 32768 [pid 5169] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [ 105.590889][ T5169] [ 105.590889][ T5169] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.590889][ T5169] [pid 5169] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5169] chdir("./file0") = 0 [pid 5169] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5169] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5169] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5169] exit_group(0) = ? [pid 5169] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=39 /* 0.39 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./16/binderfs" [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"..., 16777216 [pid 5079] <... unlink resumed>) = 0 [ 105.749395][ T2436] [ 105.749395][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.749395][ T2436] [ 105.775039][ T2436] [ 105.775039][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.775039][ T2436] [ 105.809541][ T111] [ 105.809541][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.809541][ T111] [ 105.839204][ T5079] [ 105.839204][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.839204][ T5079] [ 105.862665][ T5079] [ 105.862665][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 105.862665][ T5079] [pid 5079] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5079] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./16/file0", [pid 5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5173 attached [pid 5079] <... openat resumed>) = 4 [pid 5173] set_robust_list(0x55557f81b660, 24 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5173 [pid 5079] newfstatat(4, "", [pid 5173] <... set_robust_list resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5173] chdir("./17" [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5173] <... chdir resumed>) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./16/file0") = 0 [pid 5079] getdents64(3, [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5173] <... prctl resumed>) = 0 [pid 5173] setpgid(0, 0 [pid 5079] rmdir("./16" [pid 5173] <... setpgid resumed>) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./17", 0777 [pid 5173] <... openat resumed>) = 3 [pid 5170] <... write resumed>) = 16777216 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5170] munmap(0x7f5a20600000, 138412032 [pid 5173] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5173] <... symlink resumed>) = 0 [pid 5173] memfd_create("syzkaller", 0) = 3 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5170] <... munmap resumed>) = 0 [pid 5170] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5170] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5170] close(3) = 0 [pid 5170] close(4) = 0 [pid 5170] mkdir("./file0", 0777) = 0 [ 106.094505][ T5170] loop3: detected capacity change from 0 to 32768 [pid 5170] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5170] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5170] chdir("./file0") = 0 [pid 5170] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5170] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 106.158063][ T5170] [ 106.158063][ T5170] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.158063][ T5170] [pid 5170] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5170] exit_group(0) = ? [pid 5170] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=28 /* 0.28 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./16/binderfs") = 0 [pid 5082] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5171] <... write resumed>) = 16777216 [pid 5171] munmap(0x7f5a20600000, 138412032 [pid 5172] <... write resumed>) = 16777216 [ 106.278984][ T11] [ 106.278984][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.278984][ T11] [ 106.292216][ T11] [ 106.292216][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.292216][ T11] [pid 5172] munmap(0x7f5a20600000, 138412032 [pid 5171] <... munmap resumed>) = 0 [pid 5171] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5172] <... munmap resumed>) = 0 [pid 5171] <... openat resumed>) = 4 [ 106.332855][ T5082] [ 106.332855][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.332855][ T5082] [ 106.359230][ T112] [ 106.359230][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.359230][ T112] [ 106.375808][ T5171] loop4: detected capacity change from 0 to 32768 [pid 5171] ioctl(4, LOOP_SET_FD, 3 [pid 5172] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5172] ioctl(4, LOOP_SET_FD, 3 [pid 5171] <... ioctl resumed>) = 0 [pid 5171] close(3) = 0 [pid 5171] close(4 [pid 5173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5172] <... ioctl resumed>) = 0 [pid 5171] <... close resumed>) = 0 [pid 5171] mkdir("./file0", 0777) = 0 [pid 5171] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5172] close(3) = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5172] close(4) = 0 [pid 5082] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5172] mkdir("./file0", 0777) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 106.382574][ T5082] [ 106.382574][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.382574][ T5082] [ 106.397850][ T5172] loop2: detected capacity change from 0 to 32768 [pid 5172] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] <... ioctl resumed>) = 0 [pid 5082] newfstatat(4, "", [pid 5172] <... mount resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, [pid 5172] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] close(3 [pid 5172] <... openat resumed>) = 3 [pid 5171] <... mount resumed>) = 0 [pid 5082] getdents64(4, [pid 5079] <... close resumed>) = 0 [pid 5171] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 106.447943][ T5172] [ 106.447943][ T5172] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.447943][ T5172] [ 106.461410][ T5171] [ 106.461410][ T5171] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.461410][ T5171] [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5172] chdir("./file0" [pid 5171] <... openat resumed>) = 3 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5171] chdir("./file0" [pid 5082] close(4 [pid 5172] <... chdir resumed>) = 0 [pid 5171] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5174 attached [pid 5172] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5171] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] <... close resumed>) = 0 [pid 5172] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5171] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] rmdir("./16/file0" [pid 5174] set_robust_list(0x55557f81b660, 24 [pid 5172] openat(AT_FDCWD, ".", O_RDONLY [pid 5171] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5174 [pid 5174] <... set_robust_list resumed>) = 0 [pid 5172] <... openat resumed>) = 4 [pid 5171] <... openat resumed>) = 4 [pid 5082] <... rmdir resumed>) = 0 [pid 5174] chdir("./17" [pid 5172] getdents64(4, [pid 5171] getdents64(4, [pid 5082] getdents64(3, [pid 5174] <... chdir resumed>) = 0 [pid 5172] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5171] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5171] exit_group(0 [pid 5082] close(3 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5172] exit_group(0 [pid 5082] <... close resumed>) = 0 [pid 5174] <... prctl resumed>) = 0 [pid 5172] <... exit_group resumed>) = ? [pid 5082] rmdir("./16" [pid 5174] setpgid(0, 0 [pid 5171] <... exit_group resumed>) = ? [pid 5172] +++ exited with 0 +++ [pid 5174] <... setpgid resumed>) = 0 [pid 5171] +++ exited with 0 +++ [pid 5082] <... rmdir resumed>) = 0 [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=33 /* 0.33 s */} --- [pid 5082] mkdir("./17", 0777 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=29 /* 0.29 s */} --- [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5174] write(3, "1000", 4) = 4 [pid 5081] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5174] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5174] <... close resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5174] symlink("/dev/binderfs", "./binderfs" [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... openat resumed>) = 3 [pid 5083] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(3, "", [pid 5083] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] <... openat resumed>) = 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5174] <... symlink resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] newfstatat(3, "", [pid 5081] getdents64(3, [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5174] memfd_create("syzkaller", 0 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5174] <... memfd_create resumed>) = 3 [pid 5083] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5081] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5174] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./16/binderfs" [pid 5081] unlink("./16/binderfs" [pid 5083] <... unlink resumed>) = 0 [pid 5081] <... unlink resumed>) = 0 [pid 5083] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 106.562684][ T2445] [ 106.562684][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.562684][ T2445] [ 106.575290][ T11] [ 106.575290][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.575290][ T11] [ 106.586136][ T2445] [ 106.586136][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.586136][ T2445] [ 106.617365][ T11] [ 106.617365][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.617365][ T11] [ 106.628459][ T111] [ 106.628459][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.628459][ T111] [ 106.667271][ T5081] [ 106.667271][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.667271][ T5081] [ 106.668188][ T5083] [ 106.668188][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.668188][ T5083] [ 106.688705][ T5081] [ 106.688705][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.688705][ T5081] [ 106.713111][ T112] [pid 5081] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./16/file0", [pid 5083] newfstatat(AT_FDCWD, "./16/file0", [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", [pid 5083] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] <... openat resumed>) = 4 [pid 5081] getdents64(4, [pid 5083] newfstatat(4, "", [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 106.713111][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.713111][ T112] [ 106.729711][ T5083] [ 106.729711][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 106.729711][ T5083] [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] getdents64(4, [pid 5081] close(4 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, [pid 5081] <... close resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5081] rmdir("./16/file0" [pid 5083] rmdir("./16/file0") = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5083] getdents64(3, [pid 5081] getdents64(3, [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./16") = 0 [pid 5083] mkdir("./17", 0777) = 0 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] close(3) = 0 [pid 5081] rmdir("./16") = 0 [pid 5081] mkdir("./17", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5173] <... write resumed>) = 16777216 [pid 5173] munmap(0x7f5a20600000, 138412032 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5175 attached , child_tidptr=0x55557f81b650) = 5175 [pid 5175] set_robust_list(0x55557f81b660, 24) = 0 [pid 5175] chdir("./17") = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5173] <... munmap resumed>) = 0 [pid 5175] <... prctl resumed>) = 0 [pid 5175] setpgid(0, 0) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5173] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5175] <... openat resumed>) = 3 [pid 5173] <... openat resumed>) = 4 [pid 5175] write(3, "1000", 4) = 4 [pid 5173] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5175] close(3) = 0 [pid 5175] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5173] close(3 [pid 5175] memfd_create("syzkaller", 0 [pid 5173] <... close resumed>) = 0 [pid 5175] <... memfd_create resumed>) = 3 [pid 5173] close(4 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5173] <... close resumed>) = 0 [pid 5173] mkdir("./file0", 0777 [pid 5175] <... mmap resumed>) = 0x7f5a20600000 [pid 5173] <... mkdir resumed>) = 0 [pid 5173] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 106.969209][ T5173] loop1: detected capacity change from 0 to 32768 [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"..., 16777216 [pid 5173] <... mount resumed>) = 0 [pid 5173] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5173] chdir("./file0") = 0 [pid 5173] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5173] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5173] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5173] exit_group(0) = ? [pid 5173] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=36 /* 0.36 s */} --- [pid 5080] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 107.016527][ T5173] [ 107.016527][ T5173] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.016527][ T5173] [pid 5080] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./17/binderfs") = 0 [ 107.100419][ T11] [ 107.100419][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.100419][ T11] [ 107.131545][ T11] [ 107.131545][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.131545][ T11] [ 107.173831][ T5080] [ 107.173831][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.173831][ T5080] [ 107.197465][ T111] [ 107.197465][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.197465][ T111] [ 107.220862][ T5080] [pid 5080] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./17/file0", [pid 5083] <... close resumed>) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5176 ./strace-static-x86_64: Process 5176 attached [ 107.220862][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.220862][ T5080] [pid 5080] newfstatat(4, "", [pid 5081] <... ioctl resumed>) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, [pid 5176] set_robust_list(0x55557f81b660, 24 [pid 5081] close(3 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5176] <... set_robust_list resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] close(4 [pid 5176] chdir("./17" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... close resumed>) = 0 ./strace-static-x86_64: Process 5177 attached [pid 5176] <... chdir resumed>) = 0 [pid 5080] rmdir("./17/file0" [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5177 [pid 5176] <... prctl resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5177] set_robust_list(0x55557f81b660, 24 [pid 5176] setpgid(0, 0 [pid 5177] <... set_robust_list resumed>) = 0 [pid 5176] <... setpgid resumed>) = 0 [pid 5080] getdents64(3, [pid 5177] chdir("./17" [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5177] <... chdir resumed>) = 0 [pid 5176] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] write(3, "1000", 4 [pid 5080] <... close resumed>) = 0 [pid 5177] <... prctl resumed>) = 0 [pid 5177] setpgid(0, 0 [pid 5176] <... write resumed>) = 4 [pid 5080] rmdir("./17" [pid 5176] close(3) = 0 [pid 5176] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5176] memfd_create("syzkaller", 0) = 3 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5177] <... setpgid resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5176] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] mkdir("./18", 0777 [pid 5177] <... openat resumed>) = 3 [pid 5177] write(3, "1000", 4) = 4 [pid 5177] close(3 [pid 5080] <... mkdir resumed>) = 0 [pid 5177] <... close resumed>) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5177] memfd_create("syzkaller", 0 [pid 5080] <... openat resumed>) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5177] <... memfd_create resumed>) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5174] <... write resumed>) = 16777216 [pid 5174] munmap(0x7f5a20600000, 138412032) = 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] close(4) = 0 [ 107.653892][ T5174] loop0: detected capacity change from 0 to 32768 [pid 5174] mkdir("./file0", 0777) = 0 [pid 5174] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [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"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5178 attached , child_tidptr=0x55557f81b650) = 5178 [pid 5178] set_robust_list(0x55557f81b660, 24) = 0 [pid 5178] chdir("./18") = 0 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5178] <... prctl resumed>) = 0 [pid 5178] setpgid(0, 0) = 0 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5178] write(3, "1000", 4) = 4 [pid 5178] close(3) = 0 [pid 5178] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5174] <... mount resumed>) = 0 [pid 5174] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5174] chdir("./file0" [pid 5178] memfd_create("syzkaller", 0 [pid 5174] <... chdir resumed>) = 0 [pid 5178] <... memfd_create resumed>) = 3 [ 107.773553][ T5174] [ 107.773553][ T5174] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.773553][ T5174] [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5174] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5174] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5174] exit_group(0) = ? [pid 5174] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=27 /* 0.27 s */} --- [pid 5079] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5175] <... write resumed>) = 16777216 [pid 5175] munmap(0x7f5a20600000, 138412032 [pid 5079] unlink("./17/binderfs") = 0 [pid 5079] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5175] <... munmap resumed>) = 0 [pid 5175] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 107.918945][ T11] [ 107.918945][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.918945][ T11] [ 107.938071][ T11] [ 107.938071][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.938071][ T11] [ 107.960743][ T5175] loop3: detected capacity change from 0 to 32768 [pid 5175] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5175] close(3) = 0 [pid 5175] close(4) = 0 [pid 5175] mkdir("./file0", 0777) = 0 [ 107.965550][ T111] [ 107.965550][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.965550][ T111] [ 107.998217][ T5079] [ 107.998217][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 107.998217][ T5079] [pid 5175] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", [pid 5175] <... mount resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5079] getdents64(4, [pid 5175] chdir("./file0" [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5175] <... chdir resumed>) = 0 [pid 5175] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] getdents64(4, [pid 5175] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [ 108.018130][ T5079] [ 108.018130][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.018130][ T5079] [ 108.054829][ T5175] [ 108.054829][ T5175] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.054829][ T5175] [pid 5175] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] close(4 [pid 5175] <... openat resumed>) = 4 [pid 5175] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5175] exit_group(0 [pid 5079] rmdir("./17/file0" [pid 5175] <... exit_group resumed>) = ? [pid 5175] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=31 /* 0.31 s */} --- [pid 5082] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5082] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./17/binderfs" [pid 5079] close(3) = 0 [pid 5082] <... unlink resumed>) = 0 [pid 5082] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] rmdir("./17") = 0 [pid 5079] mkdir("./18", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 108.130001][ T2445] [ 108.130001][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.130001][ T2445] [ 108.158013][ T2445] [ 108.158013][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.158013][ T2445] [ 108.210582][ T5082] [ 108.210582][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.210582][ T5082] [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5177] <... write resumed>) = 16777216 [pid 5177] munmap(0x7f5a20600000, 138412032 [pid 5176] <... write resumed>) = 16777216 [pid 5176] munmap(0x7f5a20600000, 138412032 [pid 5177] <... munmap resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5177] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... umount2 resumed>) = 0 [ 108.268425][ T111] [ 108.268425][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.268425][ T111] [ 108.288035][ T5082] [ 108.288035][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.288035][ T5082] [pid 5082] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5177] <... ioctl resumed>) = 0 [pid 5082] newfstatat(4, "", [pid 5177] close(3) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 108.339930][ T5177] loop2: detected capacity change from 0 to 32768 [pid 5177] close(4 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5176] <... munmap resumed>) = 0 [pid 5177] <... close resumed>) = 0 [pid 5082] getdents64(4, [pid 5176] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5176] ioctl(4, LOOP_SET_FD, 3 [pid 5177] mkdir("./file0", 0777 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5177] <... mkdir resumed>) = 0 [pid 5082] close(4 [pid 5177] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./17/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5176] <... ioctl resumed>) = 0 [pid 5177] <... mount resumed>) = 0 [pid 5082] rmdir("./17" [pid 5176] close(3) = 0 [pid 5176] close(4 [pid 5177] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5176] <... close resumed>) = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] mkdir("./18", 0777 [pid 5176] mkdir("./file0", 0777 [pid 5177] <... openat resumed>) = 3 [pid 5176] <... mkdir resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5176] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5177] chdir("./file0" [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5177] <... chdir resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5177] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5177] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 108.395493][ T5176] loop4: detected capacity change from 0 to 32768 [ 108.411675][ T5177] [ 108.411675][ T5177] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.411675][ T5177] [pid 5177] exit_group(0) = ? [pid 5177] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5081] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./17/binderfs") = 0 [ 108.466952][ T5176] [ 108.466952][ T5176] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.466952][ T5176] [pid 5081] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5176] <... mount resumed>) = 0 [pid 5176] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5176] chdir("./file0") = 0 [pid 5176] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5176] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5176] getdents64(4, [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5176] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5176] exit_group(0) = ? ./strace-static-x86_64: Process 5179 attached [pid 5176] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=36 /* 0.36 s */} --- [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5179 [pid 5179] set_robust_list(0x55557f81b660, 24 [pid 5083] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5179] <... set_robust_list resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5179] chdir("./18" [pid 5083] <... openat resumed>) = 3 [ 108.513962][ T11] [ 108.513962][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.513962][ T11] [pid 5179] <... chdir resumed>) = 0 [pid 5083] newfstatat(3, "", [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5179] <... prctl resumed>) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5179] setpgid(0, 0 [pid 5083] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5179] <... setpgid resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] unlink("./17/binderfs") = 0 [pid 5083] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5179] <... openat resumed>) = 3 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 [pid 5179] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5179] memfd_create("syzkaller", 0) = 3 [ 108.566614][ T11] [ 108.566614][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.566614][ T11] [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 108.607754][ T112] [ 108.607754][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.607754][ T112] [ 108.621192][ T5081] [ 108.621192][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.621192][ T5081] [ 108.637383][ T2436] [ 108.637383][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.637383][ T2436] [pid 5178] <... write resumed>) = 16777216 [ 108.660543][ T5081] [ 108.660543][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.660543][ T5081] [ 108.667915][ T2436] [ 108.667915][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.667915][ T2436] [pid 5178] munmap(0x7f5a20600000, 138412032) = 0 [pid 5178] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./17/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./17") = 0 [pid 5081] mkdir("./18", 0777) = 0 [ 108.717421][ T5083] [ 108.717421][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.717421][ T5083] [ 108.741958][ T112] [ 108.741958][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.741958][ T112] [ 108.762603][ T5083] [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5178] <... openat resumed>) = 4 [pid 5178] ioctl(4, LOOP_SET_FD, 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5178] <... ioctl resumed>) = 0 [pid 5178] close(3) = 0 [pid 5178] close(4) = 0 [pid 5178] mkdir("./file0", 0777) = 0 [ 108.762603][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.762603][ T5083] [ 108.774453][ T5178] loop1: detected capacity change from 0 to 32768 [pid 5178] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./17/file0", [pid 5178] <... mount resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5178] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5178] <... openat resumed>) = 3 [pid 5178] chdir("./file0") = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5178] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5178] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] <... openat resumed>) = 4 [ 108.811502][ T5178] [ 108.811502][ T5178] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.811502][ T5178] [pid 5083] newfstatat(4, "", [pid 5178] <... openat resumed>) = 4 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5178] getdents64(4, [pid 5083] getdents64(4, [pid 5178] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5178] exit_group(0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5178] <... exit_group resumed>) = ? [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./17/file0") = 0 [pid 5178] +++ exited with 0 +++ [pid 5083] getdents64(3, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=27 /* 0.27 s */} --- [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] close(3 [pid 5080] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5083] <... close resumed>) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] rmdir("./17" [pid 5080] unlink("./18/binderfs" [pid 5083] <... rmdir resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5080] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] mkdir("./18", 0777) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5082] close(3) = 0 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5180 attached , child_tidptr=0x55557f81b650) = 5180 [pid 5180] set_robust_list(0x55557f81b660, 24) = 0 [ 108.884465][ T2436] [ 108.884465][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.884465][ T2436] [pid 5180] chdir("./18") = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5180] setpgid(0, 0) = 0 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5180] close(3) = 0 [pid 5180] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5180] memfd_create("syzkaller", 0) = 3 [ 108.925655][ T2436] [ 108.925655][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.925655][ T2436] [ 108.948844][ T111] [ 108.948844][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.948844][ T111] [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 108.976676][ T5080] [ 108.976676][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 108.976676][ T5080] [ 109.015157][ T5080] [ 109.015157][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 109.015157][ T5080] [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./18/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./18") = 0 [pid 5080] mkdir("./19", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5181 ./strace-static-x86_64: Process 5181 attached [pid 5181] set_robust_list(0x55557f81b660, 24) = 0 [pid 5181] chdir("./18") = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] setpgid(0, 0) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5181] write(3, "1000", 4) = 4 [pid 5181] close(3) = 0 [pid 5181] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5181] memfd_create("syzkaller", 0) = 3 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5183 attached , child_tidptr=0x55557f81b650) = 5183 [pid 5183] set_robust_list(0x55557f81b660, 24) = 0 [pid 5183] chdir("./18") = 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5183] setpgid(0, 0) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5183] write(3, "1000", 4) = 4 [pid 5183] close(3) = 0 [pid 5183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5183] memfd_create("syzkaller", 0) = 3 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5179] <... write resumed>) = 16777216 [pid 5179] munmap(0x7f5a20600000, 138412032) = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5179] ioctl(4, LOOP_SET_FD, 3 [pid 5080] <... ioctl resumed>) = 0 [pid 5179] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5179] close(3) = 0 [pid 5179] close(4./strace-static-x86_64: Process 5184 attached ) = 0 [pid 5184] set_robust_list(0x55557f81b660, 24) = 0 [pid 5179] mkdir("./file0", 0777 [pid 5184] chdir("./19" [pid 5179] <... mkdir resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5184 [pid 5184] <... chdir resumed>) = 0 [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5184] setpgid(0, 0 [pid 5179] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5184] <... setpgid resumed>) = 0 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5184] write(3, "1000", 4) = 4 [pid 5184] close(3) = 0 [pid 5184] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5184] memfd_create("syzkaller", 0) = 3 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 109.599156][ T5179] loop0: detected capacity change from 0 to 32768 [ 109.667785][ T5179] [ 109.667785][ T5179] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 109.667785][ T5179] [pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5179] <... mount resumed>) = 0 [pid 5179] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5179] chdir("./file0") = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5179] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5179] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5179] exit_group(0) = ? [pid 5179] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=27 /* 0.27 s */} --- [pid 5079] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./18/binderfs") = 0 [ 109.810961][ T62] [ 109.810961][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 109.810961][ T62] [ 109.847229][ T62] [ 109.847229][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 109.847229][ T62] [pid 5079] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 109.877483][ T5079] [ 109.877483][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 109.877483][ T5079] [ 109.897514][ T112] [ 109.897514][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 109.897514][ T112] [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"..., 16777216 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 109.927504][ T5079] [ 109.927504][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 109.927504][ T5079] [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./18/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./18") = 0 [pid 5079] mkdir("./19", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5180] <... write resumed>) = 16777216 [pid 5180] munmap(0x7f5a20600000, 138412032) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5180] close(3) = 0 [pid 5180] close(4) = 0 [pid 5180] mkdir("./file0", 0777) = 0 [ 110.139800][ T5180] loop3: detected capacity change from 0 to 32768 [ 110.231161][ T5180] [ 110.231161][ T5180] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.231161][ T5180] [pid 5180] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5181] <... write resumed>) = 16777216 [pid 5180] <... mount resumed>) = 0 [pid 5180] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5181] munmap(0x7f5a20600000, 138412032 [pid 5180] <... openat resumed>) = 3 [pid 5180] chdir("./file0") = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5181] <... munmap resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5180] openat(AT_FDCWD, ".", O_RDONLY [pid 5181] <... openat resumed>) = 4 [pid 5180] <... openat resumed>) = 4 [pid 5180] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5181] ioctl(4, LOOP_SET_FD, 3 [pid 5180] exit_group(0) = ? [pid 5180] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=38 /* 0.38 s */} --- [pid 5181] <... ioctl resumed>) = 0 [pid 5181] close(3 [pid 5082] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5181] <... close resumed>) = 0 [pid 5082] getdents64(3, [pid 5181] close(4) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./18/binderfs") = 0 [pid 5082] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5181] mkdir("./file0", 0777) = 0 [pid 5183] <... write resumed>) = 16777216 [ 110.344705][ T5181] loop2: detected capacity change from 0 to 32768 [pid 5181] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 110.388507][ T62] [ 110.388507][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.388507][ T62] [ 110.409664][ T5181] [ 110.409664][ T5181] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.409664][ T5181] [ 110.434572][ T62] [pid 5183] munmap(0x7f5a20600000, 138412032 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5186 attached , child_tidptr=0x55557f81b650) = 5186 [pid 5186] set_robust_list(0x55557f81b660, 24) = 0 [pid 5186] chdir("./19") = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5186] setpgid(0, 0) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5181] <... mount resumed>) = 0 [pid 5186] <... openat resumed>) = 3 [pid 5183] <... munmap resumed>) = 0 [pid 5181] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5186] write(3, "1000", 4 [pid 5181] <... openat resumed>) = 3 [pid 5186] <... write resumed>) = 4 [pid 5181] chdir("./file0" [pid 5186] close(3 [pid 5181] <... chdir resumed>) = 0 [pid 5186] <... close resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5186] symlink("/dev/binderfs", "./binderfs" [pid 5181] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5186] <... symlink resumed>) = 0 [pid 5181] openat(AT_FDCWD, ".", O_RDONLY [pid 5186] memfd_create("syzkaller", 0 [pid 5181] <... openat resumed>) = 4 [pid 5181] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 110.434572][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.434572][ T62] [ 110.470082][ T111] [ 110.470082][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.470082][ T111] [pid 5186] <... memfd_create resumed>) = 3 [pid 5183] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5181] exit_group(0 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5183] <... openat resumed>) = 4 [pid 5181] <... exit_group resumed>) = ? [pid 5186] <... mmap resumed>) = 0x7f5a20600000 [pid 5183] ioctl(4, LOOP_SET_FD, 3 [pid 5181] +++ exited with 0 +++ [pid 5183] <... ioctl resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=32 /* 0.32 s */} --- [pid 5183] close(3 [pid 5081] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5183] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5183] close(4 [pid 5081] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5183] <... close resumed>) = 0 [pid 5081] getdents64(3, [pid 5183] mkdir("./file0", 0777 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 110.487247][ T5082] [ 110.487247][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.487247][ T5082] [ 110.509896][ T5183] loop4: detected capacity change from 0 to 32768 [ 110.523632][ T5082] [ 110.523632][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.523632][ T5082] [pid 5183] <... mkdir resumed>) = 0 [pid 5081] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5183] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./18/binderfs") = 0 [ 110.557554][ T11] [ 110.557554][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.557554][ T11] [ 110.574100][ T5183] [ 110.574100][ T5183] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.574100][ T5183] [ 110.599747][ T11] [ 110.599747][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5081] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5184] <... write resumed>) = 16777216 [pid 5183] <... mount resumed>) = 0 [pid 5082] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5184] munmap(0x7f5a20600000, 138412032 [pid 5183] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5082] close(4) = 0 [pid 5183] chdir("./file0" [pid 5082] rmdir("./18/file0" [pid 5183] <... chdir resumed>) = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] getdents64(3, [pid 5183] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5183] openat(AT_FDCWD, ".", O_RDONLY [pid 5082] close(3) = 0 [pid 5183] <... openat resumed>) = 4 [pid 5082] rmdir("./18") = 0 [pid 5183] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5082] mkdir("./19", 0777 [pid 5183] exit_group(0 [pid 5082] <... mkdir resumed>) = 0 [pid 5183] <... exit_group resumed>) = ? [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5183] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=36 /* 0.36 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 110.599747][ T11] [ 110.613524][ T112] [ 110.613524][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.613524][ T112] [ 110.647689][ T5081] [ 110.647689][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.647689][ T5081] [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5184] <... munmap resumed>) = 0 [pid 5083] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5184] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] unlink("./18/binderfs" [pid 5184] <... openat resumed>) = 4 [pid 5083] <... unlink resumed>) = 0 [pid 5081] <... umount2 resumed>) = 0 [pid 5184] ioctl(4, LOOP_SET_FD, 3 [pid 5083] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, [pid 5184] <... ioctl resumed>) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5184] close(3 [pid 5081] getdents64(4, [pid 5184] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5184] close(4 [pid 5081] close(4 [pid 5184] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5184] mkdir("./file0", 0777 [pid 5081] rmdir("./18/file0") = 0 [ 110.665443][ T5081] [ 110.665443][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.665443][ T5081] [ 110.686365][ T5184] loop1: detected capacity change from 0 to 32768 [ 110.694471][ T11] [ 110.694471][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.694471][ T11] [pid 5184] <... mkdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5184] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./18") = 0 [pid 5081] mkdir("./19", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 110.740039][ T11] [ 110.740039][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.740039][ T11] [ 110.765622][ T5184] [ 110.765622][ T5184] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.765622][ T5184] [ 110.785239][ T111] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5184] <... mount resumed>) = 0 [pid 5184] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5184] chdir("./file0") = 0 [pid 5184] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5184] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5184] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5184] exit_group(0) = ? [pid 5184] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=34 /* 0.34 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./19/binderfs") = 0 [pid 5080] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 110.785239][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.785239][ T111] [ 110.829364][ T5083] [ 110.829364][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.829364][ T5083] [ 110.867768][ T11] [ 110.867768][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.867768][ T11] [ 110.885571][ T5083] [ 110.885571][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.885571][ T5083] [ 110.907676][ T11] [ 110.907676][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.907676][ T11] [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"..., 16777216 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./18/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./18") = 0 [pid 5083] mkdir("./19", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 110.931181][ T5080] [ 110.931181][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.931181][ T5080] [ 110.953457][ T112] [ 110.953457][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.953457][ T112] [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] <... ioctl resumed>) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5082] close(3 [pid 5080] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... close resumed>) = 0 [ 110.981371][ T5080] [ 110.981371][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 110.981371][ T5080] [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./19/file0", [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5188 ./strace-static-x86_64: Process 5188 attached [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5188] set_robust_list(0x55557f81b660, 24 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] <... set_robust_list resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5188] chdir("./19" [pid 5080] <... openat resumed>) = 4 [pid 5188] <... chdir resumed>) = 0 [pid 5080] newfstatat(4, "", [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5188] <... prctl resumed>) = 0 [pid 5080] getdents64(4, [pid 5188] setpgid(0, 0 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5188] <... setpgid resumed>) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... close resumed>) = 0 [pid 5188] <... openat resumed>) = 3 [pid 5080] rmdir("./19/file0" [pid 5188] write(3, "1000", 4) = 4 [pid 5080] <... rmdir resumed>) = 0 [pid 5188] close(3 [pid 5081] <... ioctl resumed>) = 0 [pid 5080] getdents64(3, [pid 5188] <... close resumed>) = 0 [pid 5081] close(3 [pid 5188] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5081] <... close resumed>) = 0 [pid 5188] <... symlink resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] rmdir("./19") = 0 [pid 5080] mkdir("./20", 0777 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5189 ./strace-static-x86_64: Process 5189 attached [pid 5189] set_robust_list(0x55557f81b660, 24) = 0 [pid 5189] chdir("./19" [pid 5080] <... mkdir resumed>) = 0 [pid 5189] <... chdir resumed>) = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0 [pid 5188] memfd_create("syzkaller", 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5188] <... memfd_create resumed>) = 3 [pid 5189] <... setpgid resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... openat resumed>) = 3 [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5188] <... mmap resumed>) = 0x7f5a20600000 [pid 5189] <... openat resumed>) = 3 [pid 5189] write(3, "1000", 4) = 4 [pid 5189] close(3) = 0 [pid 5189] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5189] memfd_create("syzkaller", 0) = 3 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5186] <... write resumed>) = 16777216 [pid 5186] munmap(0x7f5a20600000, 138412032 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5191 attached [pid 5186] <... munmap resumed>) = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5191 [pid 5191] set_robust_list(0x55557f81b660, 24 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5191] <... set_robust_list resumed>) = 0 [pid 5186] <... openat resumed>) = 4 [pid 5191] chdir("./19" [pid 5186] ioctl(4, LOOP_SET_FD, 3 [pid 5080] <... ioctl resumed>) = 0 [pid 5191] <... chdir resumed>) = 0 [pid 5080] close(3 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] <... close resumed>) = 0 [pid 5191] setpgid(0, 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5191] <... setpgid resumed>) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5191] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5192 attached [pid 5191] close(3) = 0 [pid 5192] set_robust_list(0x55557f81b660, 24 [pid 5191] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5192 [pid 5192] <... set_robust_list resumed>) = 0 [pid 5191] <... symlink resumed>) = 0 [pid 5192] chdir("./20") = 0 [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5191] memfd_create("syzkaller", 0 [pid 5192] setpgid(0, 0) = 0 [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] <... memfd_create resumed>) = 3 [pid 5186] <... ioctl resumed>) = 0 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5186] close(3 [pid 5191] <... mmap resumed>) = 0x7f5a20600000 [pid 5186] <... close resumed>) = 0 [pid 5186] close(4) = 0 [pid 5186] mkdir("./file0", 0777) = 0 [pid 5186] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5192] <... openat resumed>) = 3 [pid 5192] write(3, "1000", 4) = 4 [pid 5192] close(3) = 0 [pid 5192] symlink("/dev/binderfs", "./binderfs") = 0 [ 111.473928][ T5186] loop0: detected capacity change from 0 to 32768 [pid 5192] memfd_create("syzkaller", 0) = 3 [pid 5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5186] <... mount resumed>) = 0 [ 111.525435][ T5186] [ 111.525435][ T5186] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 111.525435][ T5186] [pid 5186] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5186] chdir("./file0") = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5186] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5186] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5186] exit_group(0) = ? [pid 5186] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./19/binderfs") = 0 [ 111.612524][ T62] [ 111.612524][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 111.612524][ T62] [pid 5079] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 111.655450][ T62] [ 111.655450][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 111.655450][ T62] [ 111.678219][ T111] [ 111.678219][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 111.678219][ T111] [ 111.698605][ T5079] [ 111.698605][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 111.698605][ T5079] [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"..., 16777216 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 111.739437][ T5079] [ 111.739437][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 111.739437][ T5079] [pid 5079] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./19/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./19") = 0 [pid 5079] mkdir("./20", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [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"..., 16777216 [pid 5191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5188] <... write resumed>) = 16777216 [pid 5189] <... write resumed>) = 16777216 [pid 5189] munmap(0x7f5a20600000, 138412032 [pid 5188] munmap(0x7f5a20600000, 138412032 [pid 5189] <... munmap resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5189] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5189] close(3) = 0 [pid 5188] <... munmap resumed>) = 0 [pid 5189] close(4 [pid 5188] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5189] <... close resumed>) = 0 [pid 5188] ioctl(4, LOOP_SET_FD, 3 [pid 5189] mkdir("./file0", 0777) = 0 [ 112.171815][ T5189] loop2: detected capacity change from 0 to 32768 [pid 5189] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5188] <... ioctl resumed>) = 0 [pid 5188] close(3) = 0 [pid 5188] close(4) = 0 [pid 5188] mkdir("./file0", 0777 [pid 5079] <... ioctl resumed>) = 0 [pid 5188] <... mkdir resumed>) = 0 [pid 5188] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5194 attached [pid 5194] set_robust_list(0x55557f81b660, 24) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5194 [pid 5194] chdir("./20") = 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] memfd_create("syzkaller", 0) = 3 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5189] <... mount resumed>) = 0 [pid 5188] <... mount resumed>) = 0 [pid 5189] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5189] <... openat resumed>) = 3 [pid 5189] chdir("./file0") = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5189] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5189] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5189] exit_group(0) = ? [ 112.217575][ T5188] loop3: detected capacity change from 0 to 32768 [ 112.237779][ T5188] [ 112.237779][ T5188] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.237779][ T5188] [ 112.255963][ T5189] [ 112.255963][ T5189] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.255963][ T5189] [pid 5188] <... openat resumed>) = 3 [pid 5188] chdir("./file0") = 0 [pid 5188] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5188] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5188] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5189] +++ exited with 0 +++ [pid 5188] exit_group(0) = ? [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=35 /* 0.35 s */} --- [pid 5081] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5188] +++ exited with 0 +++ [pid 5081] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=27 /* 0.27 s */} --- [pid 5081] newfstatat(3, "", [pid 5082] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] getdents64(3, [pid 5082] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] <... openat resumed>) = 3 [pid 5081] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] newfstatat(3, "", [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5082] getdents64(3, [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] unlink("./19/binderfs" [pid 5082] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... unlink resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./19/binderfs" [pid 5081] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... unlink resumed>) = 0 [ 112.338096][ T62] [ 112.338096][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.338096][ T62] [ 112.358400][ T11] [ 112.358400][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.358400][ T11] [ 112.370125][ T62] [ 112.370125][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.370125][ T62] [ 112.388242][ T11] [ 112.388242][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.388242][ T11] [ 112.408467][ T112] [ 112.408467][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.408467][ T112] [ 112.428432][ T111] [ 112.428432][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5082] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5192] <... write resumed>) = 16777216 [ 112.428432][ T111] [ 112.440601][ T5081] [ 112.440601][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.440601][ T5081] [ 112.460884][ T5082] [ 112.460884][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.460884][ T5082] [ 112.486084][ T5081] [pid 5192] munmap(0x7f5a20600000, 138412032) = 0 [pid 5192] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5192] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5081] <... umount2 resumed>) = 0 [pid 5192] close(3) = 0 [pid 5081] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5192] close(4 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./19/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./19") = 0 [pid 5081] mkdir("./20", 0777 [pid 5192] <... close resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5192] mkdir("./file0", 0777) = 0 [ 112.486084][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.486084][ T5081] [ 112.498444][ T5082] [ 112.498444][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.498444][ T5082] [ 112.513013][ T5192] loop1: detected capacity change from 0 to 32768 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5192] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... openat resumed>) = 3 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5191] <... write resumed>) = 16777216 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5191] munmap(0x7f5a20600000, 138412032 [pid 5082] rmdir("./19/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./19" [pid 5192] <... mount resumed>) = 0 [pid 5192] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 112.590121][ T5192] [ 112.590121][ T5192] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.590121][ T5192] [pid 5192] chdir("./file0") = 0 [pid 5192] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] <... rmdir resumed>) = 0 [pid 5192] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5192] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5192] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5192] exit_group(0) = ? [pid 5192] +++ exited with 0 +++ [pid 5082] mkdir("./20", 0777) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=27 /* 0.27 s */} --- [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5191] <... munmap resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5080] <... restart_syscall resumed>) = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5191] <... openat resumed>) = 4 [pid 5191] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5191] close(3 [pid 5080] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5191] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5191] close(4 [pid 5080] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5191] <... close resumed>) = 0 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5191] mkdir("./file0", 0777) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5191] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./20/binderfs") = 0 [ 112.699009][ T5191] loop4: detected capacity change from 0 to 32768 [ 112.757627][ T2436] [ 112.757627][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.757627][ T2436] [ 112.777221][ T5191] [ 112.777221][ T5191] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.777221][ T5191] [ 112.797983][ T2436] [ 112.797983][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5080] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5191] <... mount resumed>) = 0 [pid 5191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5191] chdir("./file0") = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5191] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5191] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5191] exit_group(0) = ? [pid 5191] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5083] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 112.797983][ T2436] [ 112.824358][ T111] [ 112.824358][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.824358][ T111] [pid 5083] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./19/binderfs") = 0 [pid 5083] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [ 112.867311][ T5080] [ 112.867311][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.867311][ T5080] [ 112.879003][ T2436] [ 112.879003][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.879003][ T2436] [ 112.896010][ T2436] [ 112.896010][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.896010][ T2436] [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5196 attached , child_tidptr=0x55557f81b650) = 5196 [pid 5196] set_robust_list(0x55557f81b660, 24) = 0 [pid 5196] chdir("./20") = 0 [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5196] setpgid(0, 0) = 0 [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] <... umount2 resumed>) = 0 [pid 5196] write(3, "1000", 4) = 4 [pid 5196] close(3) = 0 [pid 5196] symlink("/dev/binderfs", "./binderfs") = 0 [ 112.917263][ T5080] [ 112.917263][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.917263][ T5080] [ 112.928269][ T111] [ 112.928269][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.928269][ T111] [ 112.947880][ T5083] [ 112.947880][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.947880][ T5083] [pid 5196] memfd_create("syzkaller", 0 [pid 5080] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5196] <... memfd_create resumed>) = 3 [pid 5080] newfstatat(AT_FDCWD, "./20/file0", [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./20/file0" [pid 5083] <... umount2 resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5083] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] close(3 [pid 5083] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... close resumed>) = 0 [pid 5083] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] rmdir("./20" [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, [pid 5080] <... rmdir resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] mkdir("./21", 0777 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4 [pid 5080] <... mkdir resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./19/file0") = 0 [ 112.986000][ T5083] [ 112.986000][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 112.986000][ T5083] [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./19") = 0 [pid 5080] <... openat resumed>) = 3 [pid 5083] mkdir("./20", 0777 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5083] <... mkdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5197 ./strace-static-x86_64: Process 5197 attached [pid 5197] set_robust_list(0x55557f81b660, 24) = 0 [pid 5197] chdir("./20") = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [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 5194] <... write resumed>) = 16777216 [pid 5197] close(3 [pid 5194] munmap(0x7f5a20600000, 138412032 [pid 5197] <... close resumed>) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5197] memfd_create("syzkaller", 0) = 3 [pid 5194] <... munmap resumed>) = 0 [pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5194] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5197] <... mmap resumed>) = 0x7f5a20600000 [pid 5194] <... openat resumed>) = 4 [pid 5194] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5194] close(3) = 0 [pid 5194] close(4) = 0 [pid 5194] mkdir("./file0", 0777) = 0 [ 113.227989][ T5194] loop0: detected capacity change from 0 to 32768 [pid 5194] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [ 113.316057][ T5194] [ 113.316057][ T5194] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 113.316057][ T5194] [pid 5194] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5194] chdir("./file0") = 0 [pid 5194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5194] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5194] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5194] exit_group(0) = ? [pid 5196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5194] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./20/binderfs") = 0 [ 113.457542][ T2445] [ 113.457542][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 113.457542][ T2445] [ 113.472497][ T2445] [ 113.472497][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 113.472497][ T2445] [ 113.499734][ T5079] [ 113.499734][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5079] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... ioctl resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5083] close(3 [pid 5197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... close resumed>) = 0 [pid 5080] close(3 [pid 5079] <... umount2 resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5198 [pid 5079] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5199 attached [pid 5079] newfstatat(AT_FDCWD, "./20/file0", [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5199 ./strace-static-x86_64: Process 5198 attached [pid 5199] set_robust_list(0x55557f81b660, 24 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5199] <... set_robust_list resumed>) = 0 [pid 5199] chdir("./21" [pid 5198] set_robust_list(0x55557f81b660, 24 [pid 5079] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5198] <... set_robust_list resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5199] <... chdir resumed>) = 0 [pid 5198] chdir("./20" [pid 5079] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5198] <... chdir resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5199] <... prctl resumed>) = 0 [pid 5199] setpgid(0, 0 [pid 5198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] newfstatat(4, "", [pid 5199] <... setpgid resumed>) = 0 [pid 5198] <... prctl resumed>) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5199] <... openat resumed>) = 3 [pid 5198] setpgid(0, 0 [pid 5079] getdents64(4, [pid 5199] write(3, "1000", 4 [pid 5198] <... setpgid resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5199] <... write resumed>) = 4 [ 113.499734][ T5079] [ 113.513508][ T111] [ 113.513508][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 113.513508][ T111] [ 113.538358][ T5079] [ 113.538358][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 113.538358][ T5079] [pid 5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] getdents64(4, [pid 5199] close(3 [pid 5198] <... openat resumed>) = 3 [pid 5199] <... close resumed>) = 0 [pid 5199] symlink("/dev/binderfs", "./binderfs" [pid 5198] write(3, "1000", 4 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5198] <... write resumed>) = 4 [pid 5079] close(4 [pid 5199] <... symlink resumed>) = 0 [pid 5198] close(3 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./20/file0" [pid 5198] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5198] symlink("/dev/binderfs", "./binderfs" [pid 5079] getdents64(3, [pid 5199] memfd_create("syzkaller", 0) = 3 [pid 5198] <... symlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5198] memfd_create("syzkaller", 0 [pid 5199] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] close(3 [pid 5198] <... memfd_create resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] rmdir("./20" [pid 5198] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./21", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5196] <... write resumed>) = 16777216 [pid 5196] munmap(0x7f5a20600000, 138412032) = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5196] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5196] close(3) = 0 [pid 5196] close(4 [pid 5079] <... ioctl resumed>) = 0 [pid 5196] <... close resumed>) = 0 [pid 5079] close(3) = 0 [pid 5196] mkdir("./file0", 0777 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5196] <... mkdir resumed>) = 0 [ 113.889662][ T5196] loop2: detected capacity change from 0 to 32768 [pid 5196] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5200 ./strace-static-x86_64: Process 5200 attached [pid 5200] set_robust_list(0x55557f81b660, 24) = 0 [pid 5200] chdir("./21") = 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] memfd_create("syzkaller", 0) = 3 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5196] <... mount resumed>) = 0 [ 114.011319][ T5196] [ 114.011319][ T5196] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.011319][ T5196] [pid 5196] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5196] chdir("./file0") = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5196] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5196] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5196] exit_group(0) = ? [pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5196] +++ exited with 0 +++ [pid 5197] <... write resumed>) = 16777216 [pid 5197] munmap(0x7f5a20600000, 138412032 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=32 /* 0.32 s */} --- [pid 5081] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./20/binderfs") = 0 [pid 5081] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5197] <... munmap resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 114.143982][ T2445] [ 114.143982][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.143982][ T2445] [ 114.179126][ T5197] loop3: detected capacity change from 0 to 32768 [ 114.188701][ T2445] [pid 5197] ioctl(4, LOOP_SET_FD, 3) = 0 [ 114.188701][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.188701][ T2445] [pid 5197] close(3) = 0 [pid 5197] close(4) = 0 [pid 5197] mkdir("./file0", 0777) = 0 [ 114.217717][ T112] [ 114.217717][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.217717][ T112] [ 114.237269][ T5081] [ 114.237269][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.237269][ T5081] [ 114.264618][ T5197] [pid 5197] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5197] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5197] chdir("./file0") = 0 [pid 5197] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5197] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5197] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 114.264618][ T5197] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.264618][ T5197] [ 114.267262][ T5081] [ 114.267262][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.267262][ T5081] [pid 5197] exit_group(0) = ? [pid 5197] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = 0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=25 /* 0.25 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./20/binderfs") = 0 [pid 5082] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./20/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./20") = 0 [pid 5081] mkdir("./21", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 114.365325][ T2436] [ 114.365325][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.365325][ T2436] [ 114.397872][ T2436] [ 114.397872][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.397872][ T2436] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 114.419527][ T5082] [ 114.419527][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.419527][ T5082] [ 114.440138][ T112] [ 114.440138][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.440138][ T112] [ 114.459272][ T5082] [ 114.459272][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.459272][ T5082] [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5198] <... write resumed>) = 16777216 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5198] munmap(0x7f5a20600000, 138412032 [pid 5082] rmdir("./20/file0") = 0 [pid 5198] <... munmap resumed>) = 0 [pid 5082] getdents64(3, [pid 5198] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./20" [pid 5198] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] mkdir("./21", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5198] <... ioctl resumed>) = 0 [ 114.564813][ T5198] loop4: detected capacity change from 0 to 32768 [pid 5198] close(3) = 0 [pid 5198] close(4) = 0 [pid 5198] mkdir("./file0", 0777) = 0 [pid 5198] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5198] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5198] chdir("./file0") = 0 [pid 5198] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5198] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5199] <... write resumed>) = 16777216 [pid 5198] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 114.653095][ T5198] [ 114.653095][ T5198] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.653095][ T5198] [pid 5198] exit_group(0) = ? [pid 5198] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=36 /* 0.36 s */} --- [pid 5083] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./20/binderfs") = 0 [pid 5083] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 114.732924][ T2436] [ 114.732924][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.732924][ T2436] [ 114.765138][ T2436] [ 114.765138][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.765138][ T2436] [pid 5199] munmap(0x7f5a20600000, 138412032) = 0 [pid 5199] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5199] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... ioctl resumed>) = 0 [pid 5199] <... ioctl resumed>) = 0 [pid 5199] close(3) = 0 [pid 5199] close(4) = 0 [ 114.790376][ T111] [ 114.790376][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.790376][ T111] [ 114.804228][ T5199] loop1: detected capacity change from 0 to 32768 [ 114.811158][ T5083] [ 114.811158][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.811158][ T5083] [pid 5199] mkdir("./file0", 0777 [pid 5081] close(3 [pid 5199] <... mkdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5199] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5201 attached [pid 5201] set_robust_list(0x55557f81b660, 24 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5201 [pid 5201] <... set_robust_list resumed>) = 0 [ 114.847335][ T5083] [ 114.847335][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.847335][ T5083] [pid 5201] chdir("./21") = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5083] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5201] setpgid(0, 0) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./20/file0", [pid 5201] <... openat resumed>) = 3 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5201] write(3, "1000", 4 [pid 5199] <... mount resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5201] <... write resumed>) = 4 [pid 5083] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5199] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] <... openat resumed>) = 4 [pid 5199] <... openat resumed>) = 3 [pid 5201] close(3 [pid 5199] chdir("./file0" [pid 5083] newfstatat(4, "", [pid 5201] <... close resumed>) = 0 [pid 5201] symlink("/dev/binderfs", "./binderfs" [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5201] <... symlink resumed>) = 0 [pid 5199] <... chdir resumed>) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5199] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] getdents64(4, [pid 5201] memfd_create("syzkaller", 0 [pid 5199] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5201] <... memfd_create resumed>) = 3 [pid 5199] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] close(4 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5199] <... openat resumed>) = 4 [pid 5201] <... mmap resumed>) = 0x7f5a20600000 [pid 5199] getdents64(4, [pid 5083] <... close resumed>) = 0 [ 114.913543][ T5199] [ 114.913543][ T5199] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 114.913543][ T5199] [pid 5083] rmdir("./20/file0" [pid 5199] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5200] <... write resumed>) = 16777216 [pid 5199] exit_group(0 [pid 5083] <... rmdir resumed>) = 0 [pid 5199] <... exit_group resumed>) = ? [pid 5083] getdents64(3, [pid 5082] <... ioctl resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3 [pid 5199] +++ exited with 0 +++ [pid 5200] munmap(0x7f5a20600000, 138412032 [pid 5083] <... close resumed>) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=30 /* 0.30 s */} --- [pid 5083] rmdir("./20") = 0 [pid 5083] mkdir("./21", 0777 [pid 5082] close(3) = 0 [pid 5083] <... mkdir resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5202 attached [pid 5083] <... openat resumed>) = 3 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5202 [pid 5080] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5202] set_robust_list(0x55557f81b660, 24 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5080] <... openat resumed>) = 3 [pid 5202] <... set_robust_list resumed>) = 0 [pid 5080] newfstatat(3, "", [pid 5202] chdir("./21" [pid 5200] <... munmap resumed>) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, [pid 5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5202] <... chdir resumed>) = 0 [pid 5200] <... openat resumed>) = 4 [pid 5080] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] ioctl(4, LOOP_SET_FD, 3 [pid 5202] <... prctl resumed>) = 0 [pid 5202] setpgid(0, 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./21/binderfs") = 0 [pid 5080] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5202] <... setpgid resumed>) = 0 [pid 5200] <... ioctl resumed>) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] close(3 [pid 5202] <... openat resumed>) = 3 [pid 5200] <... close resumed>) = 0 [pid 5202] write(3, "1000", 4 [pid 5200] close(4 [pid 5202] <... write resumed>) = 4 [pid 5200] <... close resumed>) = 0 [pid 5202] close(3 [pid 5200] mkdir("./file0", 0777 [pid 5202] <... close resumed>) = 0 [ 115.011134][ T5200] loop0: detected capacity change from 0 to 32768 [ 115.019338][ T1837] [ 115.019338][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.019338][ T1837] [ 115.040022][ T1837] [ 115.040022][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.040022][ T1837] [pid 5202] symlink("/dev/binderfs", "./binderfs" [pid 5200] <... mkdir resumed>) = 0 [pid 5202] <... symlink resumed>) = 0 [pid 5200] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 115.062191][ T112] [ 115.062191][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.062191][ T112] [ 115.075207][ T5080] [ 115.075207][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.075207][ T5080] [ 115.092044][ T5200] [ 115.092044][ T5200] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.092044][ T5200] [pid 5202] memfd_create("syzkaller", 0) = 3 [pid 5200] <... mount resumed>) = 0 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5200] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5202] <... mmap resumed>) = 0x7f5a20600000 [pid 5200] <... openat resumed>) = 3 [pid 5200] chdir("./file0") = 0 [pid 5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5200] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5200] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5200] exit_group(0) = ? [pid 5200] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./21/binderfs") = 0 [ 115.114878][ T5080] [ 115.114878][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.114878][ T5080] [pid 5079] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [ 115.160907][ T11] [ 115.160907][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.160907][ T11] [pid 5080] rmdir("./21/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./21") = 0 [pid 5080] mkdir("./22", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 115.219322][ T11] [ 115.219322][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.219322][ T11] [ 115.248684][ T5079] [ 115.248684][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.248684][ T5079] [ 115.289255][ T112] [ 115.289255][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.289255][ T112] [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5203 ./strace-static-x86_64: Process 5203 attached [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 115.337465][ T5079] [ 115.337465][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 115.337465][ T5079] [pid 5079] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5203] set_robust_list(0x55557f81b660, 24 [pid 5079] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5203] <... set_robust_list resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5203] chdir("./21" [pid 5079] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5203] <... chdir resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] newfstatat(4, "", [pid 5203] setpgid(0, 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, [pid 5203] <... setpgid resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] getdents64(4, [pid 5203] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5203] write(3, "1000", 4 [pid 5079] close(4 [pid 5203] <... write resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5203] close(3 [pid 5079] rmdir("./21/file0" [pid 5203] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5203] symlink("/dev/binderfs", "./binderfs" [pid 5079] getdents64(3, [pid 5203] <... symlink resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./21" [pid 5203] memfd_create("syzkaller", 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5203] <... memfd_create resumed>) = 3 [pid 5079] mkdir("./22", 0777 [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5203] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [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"..., 16777216 [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5202] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5204 attached , child_tidptr=0x55557f81b650) = 5204 [pid 5204] set_robust_list(0x55557f81b660, 24) = 0 [pid 5204] chdir("./22") = 0 [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5204] setpgid(0, 0) = 0 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5204] write(3, "1000", 4) = 4 [pid 5204] close(3) = 0 [pid 5204] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5204] memfd_create("syzkaller", 0) = 3 [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5205 ./strace-static-x86_64: Process 5205 attached [pid 5205] set_robust_list(0x55557f81b660, 24) = 0 [pid 5205] chdir("./22") = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5205] setpgid(0, 0) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5205] write(3, "1000", 4) = 4 [pid 5205] close(3 [pid 5201] <... write resumed>) = 16777216 [pid 5205] <... close resumed>) = 0 [pid 5205] symlink("/dev/binderfs", "./binderfs" [pid 5201] munmap(0x7f5a20600000, 138412032 [pid 5205] <... symlink resumed>) = 0 [pid 5205] memfd_create("syzkaller", 0) = 3 [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5201] <... munmap resumed>) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5201] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5201] close(3) = 0 [pid 5201] close(4) = 0 [pid 5201] mkdir("./file0", 0777) = 0 [ 116.019804][ T5201] loop2: detected capacity change from 0 to 32768 [pid 5201] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5201] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 116.068437][ T5201] [ 116.068437][ T5201] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.068437][ T5201] [pid 5201] chdir("./file0") = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5201] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5201] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5201] exit_group(0) = ? [pid 5201] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5202] <... write resumed>) = 16777216 [pid 5081] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5202] munmap(0x7f5a20600000, 138412032 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./21/binderfs") = 0 [pid 5081] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5202] <... munmap resumed>) = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [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"..., 16777216 [ 116.168547][ T1837] [ 116.168547][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.168547][ T1837] [ 116.207283][ T1837] [ 116.207283][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.207283][ T1837] [pid 5202] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5202] close(3) = 0 [pid 5202] close(4) = 0 [ 116.228843][ T5202] loop3: detected capacity change from 0 to 32768 [ 116.235759][ T5081] [ 116.235759][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.235759][ T5081] [ 116.256071][ T111] [ 116.256071][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.256071][ T111] [pid 5202] mkdir("./file0", 0777) = 0 [pid 5202] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5202] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5202] chdir("./file0") = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5202] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5202] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5202] exit_group(0) = ? [pid 5202] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=27 /* 0.27 s */} --- [pid 5082] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] <... umount2 resumed>) = 0 [ 116.290058][ T5081] [ 116.290058][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.290058][ T5081] [ 116.304845][ T5202] [ 116.304845][ T5202] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.304845][ T5202] [pid 5082] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./21/binderfs") = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5203] <... write resumed>) = 16777216 [pid 5081] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5203] munmap(0x7f5a20600000, 138412032 [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./21/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./21") = 0 [pid 5081] mkdir("./22", 0777) = 0 [ 116.358636][ T11] [ 116.358636][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.358636][ T11] [ 116.377093][ T11] [ 116.377093][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.377093][ T11] [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5203] <... munmap resumed>) = 0 [pid 5203] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5203] ioctl(4, LOOP_SET_FD, 3 [pid 5205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5203] <... ioctl resumed>) = 0 [pid 5203] close(3) = 0 [pid 5203] close(4) = 0 [pid 5203] mkdir("./file0", 0777) = 0 [ 116.408614][ T5082] [ 116.408614][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.408614][ T5082] [ 116.430708][ T5203] loop4: detected capacity change from 0 to 32768 [ 116.438401][ T5082] [ 116.438401][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.438401][ T5082] [pid 5203] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5203] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5203] chdir("./file0") = 0 [pid 5203] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5203] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5203] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 116.471716][ T5203] [ 116.471716][ T5203] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.471716][ T5203] [ 116.495147][ T112] [ 116.495147][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.495147][ T112] [pid 5203] exit_group(0) = ? [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5203] +++ exited with 0 +++ [pid 5082] close(4 [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=38 /* 0.38 s */} --- [pid 5082] <... close resumed>) = 0 [pid 5083] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] rmdir("./21/file0" [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... rmdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5082] close(3 [pid 5083] newfstatat(3, "", [pid 5082] <... close resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] rmdir("./21" [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... rmdir resumed>) = 0 [pid 5083] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./21/binderfs") = 0 [pid 5083] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] mkdir("./22", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 116.597986][ T11] [ 116.597986][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.597986][ T11] [ 116.620030][ T11] [ 116.620030][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.620030][ T11] [ 116.658403][ T111] [ 116.658403][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.658403][ T111] [ 116.675315][ T5083] [ 116.675315][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.675315][ T5083] [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5204] <... write resumed>) = 16777216 [ 116.713928][ T5083] [ 116.713928][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.713928][ T5083] [pid 5204] munmap(0x7f5a20600000, 138412032 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5204] <... munmap resumed>) = 0 [pid 5204] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5204] <... openat resumed>) = 4 [pid 5083] close(4) = 0 [pid 5083] rmdir("./21/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./21") = 0 [pid 5204] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... ioctl resumed>) = 0 [pid 5083] mkdir("./22", 0777 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... mkdir resumed>) = 0 [pid 5204] <... ioctl resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 ./strace-static-x86_64: Process 5206 attached [pid 5204] close(3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5206 [pid 5204] <... close resumed>) = 0 [pid 5206] set_robust_list(0x55557f81b660, 24 [pid 5204] close(4) = 0 [pid 5206] <... set_robust_list resumed>) = 0 [pid 5206] chdir("./22" [pid 5204] mkdir("./file0", 0777 [pid 5206] <... chdir resumed>) = 0 [pid 5204] <... mkdir resumed>) = 0 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5204] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5206] <... prctl resumed>) = 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] memfd_create("syzkaller", 0) = 3 [ 116.823678][ T5204] loop1: detected capacity change from 0 to 32768 [pid 5206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 116.874864][ T5204] [ 116.874864][ T5204] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 116.874864][ T5204] [pid 5205] <... write resumed>) = 16777216 [pid 5204] <... mount resumed>) = 0 [pid 5204] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5205] munmap(0x7f5a20600000, 138412032 [pid 5204] <... openat resumed>) = 3 [pid 5204] chdir("./file0") = 0 [pid 5204] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5204] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5204] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5204] exit_group(0) = ? [pid 5204] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=29 /* 0.29 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5205] <... munmap resumed>) = 0 [pid 5080] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./22/binderfs") = 0 [pid 5080] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5205] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... ioctl resumed>) = 0 [pid 5205] <... ioctl resumed>) = 0 [pid 5205] close(3 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5207 attached , child_tidptr=0x55557f81b650) = 5207 [pid 5207] set_robust_list(0x55557f81b660, 24) = 0 [pid 5207] chdir("./22") = 0 [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5207] setpgid(0, 0) = 0 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5205] <... close resumed>) = 0 [pid 5207] write(3, "1000", 4 [pid 5205] close(4 [pid 5207] <... write resumed>) = 4 [pid 5207] close(3 [pid 5205] <... close resumed>) = 0 [pid 5205] mkdir("./file0", 0777 [pid 5207] <... close resumed>) = 0 [pid 5207] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5207] memfd_create("syzkaller", 0) = 3 [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5205] <... mkdir resumed>) = 0 [ 117.044036][ T5205] loop0: detected capacity change from 0 to 32768 [ 117.051772][ T2436] [ 117.051772][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.051772][ T2436] [ 117.070931][ T2436] [ 117.070931][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.070931][ T2436] [pid 5205] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5205] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5205] chdir("./file0") = 0 [pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5205] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 117.127717][ T5080] [ 117.127717][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.127717][ T5080] [ 117.130288][ T5205] [ 117.130288][ T5205] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.130288][ T5205] [ 117.153633][ T5080] [ 117.153633][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.153633][ T5080] [pid 5205] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5205] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5205] <... exit_group resumed>) = ? [pid 5080] newfstatat(AT_FDCWD, "./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5205] +++ exited with 0 +++ [pid 5080] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=30 /* 0.30 s */} --- [pid 5080] <... openat resumed>) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5080] getdents64(4, [pid 5206] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4 [pid 5079] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] rmdir("./22/file0" [pid 5079] <... openat resumed>) = 3 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] newfstatat(3, "", [pid 5080] getdents64(3, [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3 [pid 5079] getdents64(3, [pid 5080] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] rmdir("./22") = 0 [pid 5079] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] mkdir("./23", 0777 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... mkdir resumed>) = 0 [pid 5079] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 117.193984][ T112] [ 117.193984][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.193984][ T112] [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] unlink("./22/binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5079] <... unlink resumed>) = 0 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5208 ./strace-static-x86_64: Process 5208 attached [pid 5208] set_robust_list(0x55557f81b660, 24) = 0 [pid 5208] chdir("./22") = 0 [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5208] setpgid(0, 0) = 0 [ 117.258115][ T11] [ 117.258115][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.258115][ T11] [ 117.275029][ T11] [ 117.275029][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.275029][ T11] [ 117.298156][ T111] [ 117.298156][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.298156][ T111] [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5208] write(3, "1000", 4) = 4 [pid 5208] close(3) = 0 [pid 5208] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5208] memfd_create("syzkaller", 0) = 3 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 117.321916][ T5079] [ 117.321916][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.321916][ T5079] [ 117.345692][ T5079] [ 117.345692][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.345692][ T5079] [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./22/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./22") = 0 [pid 5079] mkdir("./23", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [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"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5209 ./strace-static-x86_64: Process 5209 attached [pid 5209] set_robust_list(0x55557f81b660, 24) = 0 [pid 5209] chdir("./23") = 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] memfd_create("syzkaller", 0) = 3 [pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5206] <... write resumed>) = 16777216 [pid 5206] munmap(0x7f5a20600000, 138412032 [pid 5208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5206] <... munmap resumed>) = 0 [pid 5206] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5206] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5206] close(3 [pid 5079] <... close resumed>) = 0 [pid 5206] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5206] close(4 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5210 ./strace-static-x86_64: Process 5210 attached [pid 5206] <... close resumed>) = 0 [pid 5210] set_robust_list(0x55557f81b660, 24 [pid 5206] mkdir("./file0", 0777 [pid 5210] <... set_robust_list resumed>) = 0 [pid 5206] <... mkdir resumed>) = 0 [pid 5210] chdir("./23" [pid 5206] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5210] <... chdir resumed>) = 0 [ 117.869794][ T5206] loop2: detected capacity change from 0 to 32768 [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5210] setpgid(0, 0) = 0 [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5206] <... mount resumed>) = 0 [pid 5210] <... openat resumed>) = 3 [pid 5206] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5210] write(3, "1000", 4 [pid 5206] <... openat resumed>) = 3 [pid 5210] <... write resumed>) = 4 [pid 5210] close(3 [pid 5206] chdir("./file0" [pid 5210] <... close resumed>) = 0 [pid 5206] <... chdir resumed>) = 0 [pid 5210] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5210] memfd_create("syzkaller", 0) = 3 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5206] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5206] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5206] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5206] exit_group(0) = ? [ 117.939772][ T5206] [ 117.939772][ T5206] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 117.939772][ T5206] [pid 5206] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=31 /* 0.31 s */} --- [pid 5081] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./22/binderfs") = 0 [ 118.029106][ T2436] [ 118.029106][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.029106][ T2436] [ 118.058320][ T2436] [ 118.058320][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.058320][ T2436] [ 118.100855][ T112] [ 118.100855][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.100855][ T112] [ 118.127248][ T5081] [ 118.127248][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.127248][ T5081] [pid 5081] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5207] <... write resumed>) = 16777216 [pid 5207] munmap(0x7f5a20600000, 138412032) = 0 [pid 5207] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 118.162211][ T5081] [ 118.162211][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.162211][ T5081] [pid 5207] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5207] <... ioctl resumed>) = 0 [pid 5207] close(3) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5207] close(4 [pid 5209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5207] <... close resumed>) = 0 [pid 5207] mkdir("./file0", 0777 [pid 5081] <... openat resumed>) = 4 [ 118.213868][ T5207] loop3: detected capacity change from 0 to 32768 [pid 5207] <... mkdir resumed>) = 0 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5207] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./22/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./22" [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"..., 16777216 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./23", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5207] <... mount resumed>) = 0 [pid 5207] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5207] chdir("./file0") = 0 [pid 5207] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5207] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 118.320651][ T5207] [ 118.320651][ T5207] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.320651][ T5207] [pid 5207] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5207] exit_group(0) = ? [pid 5207] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=30 /* 0.30 s */} --- [pid 5082] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./22/binderfs") = 0 [pid 5082] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5208] <... write resumed>) = 16777216 [ 118.419753][ T2436] [ 118.419753][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.419753][ T2436] [ 118.440580][ T2436] [ 118.440580][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.440580][ T2436] [pid 5208] munmap(0x7f5a20600000, 138412032) = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5208] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5208] close(3) = 0 [pid 5208] close(4) = 0 [ 118.477836][ T112] [ 118.477836][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.477836][ T112] [ 118.498684][ T5208] loop4: detected capacity change from 0 to 32768 [ 118.505670][ T5082] [ 118.505670][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.505670][ T5082] [pid 5208] mkdir("./file0", 0777) = 0 [pid 5208] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./22/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [ 118.530836][ T5082] [ 118.530836][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.530836][ T5082] [pid 5082] close(3) = 0 [pid 5082] rmdir("./22") = 0 [pid 5082] mkdir("./23", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5208] <... mount resumed>) = 0 [pid 5208] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5208] chdir("./file0") = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5208] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5208] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5208] exit_group(0) = ? [pid 5208] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=33 /* 0.33 s */} --- [pid 5083] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./22/binderfs") = 0 [ 118.608874][ T5208] [ 118.608874][ T5208] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.608874][ T5208] [ 118.677334][ T2436] [ 118.677334][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.677334][ T2436] [ 118.700473][ T2436] [ 118.700473][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.700473][ T2436] [ 118.737355][ T5083] [ 118.737355][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.737355][ T5083] [pid 5083] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5210] <... write resumed>) = 16777216 [pid 5209] <... write resumed>) = 16777216 [pid 5210] munmap(0x7f5a20600000, 138412032 [pid 5081] close(3) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5209] munmap(0x7f5a20600000, 138412032 [pid 5083] newfstatat(AT_FDCWD, "./22/file0", [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5211 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5211 attached [ 118.777812][ T112] [ 118.777812][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.777812][ T112] [ 118.790973][ T5083] [ 118.790973][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.790973][ T5083] [pid 5211] set_robust_list(0x55557f81b660, 24 [pid 5083] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5211] <... set_robust_list resumed>) = 0 [pid 5210] <... munmap resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5210] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5211] chdir("./23" [pid 5083] <... openat resumed>) = 4 [pid 5211] <... chdir resumed>) = 0 [pid 5083] newfstatat(4, "", [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5211] <... prctl resumed>) = 0 [pid 5210] <... openat resumed>) = 4 [pid 5083] getdents64(4, [pid 5211] setpgid(0, 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, [pid 5211] <... setpgid resumed>) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5211] write(3, "1000", 4) = 4 [pid 5211] close(3) = 0 [pid 5211] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5210] ioctl(4, LOOP_SET_FD, 3 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5211] memfd_create("syzkaller", 0 [pid 5083] close(4 [pid 5211] <... memfd_create resumed>) = 3 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./22/file0") = 0 [pid 5209] <... munmap resumed>) = 0 [pid 5083] getdents64(3, [pid 5209] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5209] ioctl(4, LOOP_SET_FD, 3 [pid 5083] close(3) = 0 [pid 5083] rmdir("./22" [pid 5209] <... ioctl resumed>) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5209] close(3) = 0 [pid 5209] close(4) = 0 [pid 5210] <... ioctl resumed>) = 0 [pid 5083] mkdir("./23", 0777 [pid 5210] close(3) = 0 [pid 5210] close(4) = 0 [pid 5209] mkdir("./file0", 0777 [pid 5083] <... mkdir resumed>) = 0 [pid 5210] mkdir("./file0", 0777 [pid 5209] <... mkdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5209] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] <... openat resumed>) = 3 [pid 5210] <... mkdir resumed>) = 0 [pid 5083] ioctl(3, LOOP_CLR_FD [ 118.848118][ T5210] loop0: detected capacity change from 0 to 32768 [ 118.869276][ T5209] loop1: detected capacity change from 0 to 32768 [pid 5210] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... ioctl resumed>) = 0 [pid 5210] <... mount resumed>) = 0 [pid 5210] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] close(3 [pid 5210] <... openat resumed>) = 3 [pid 5082] <... close resumed>) = 0 [pid 5210] chdir("./file0" [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5210] <... chdir resumed>) = 0 [pid 5210] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5212 attached [ 118.913317][ T5209] [ 118.913317][ T5209] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.913317][ T5209] [ 118.917911][ T5210] [ 118.917911][ T5210] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 118.917911][ T5210] [pid 5212] set_robust_list(0x55557f81b660, 24 [pid 5210] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5212 [pid 5210] openat(AT_FDCWD, ".", O_RDONLY [pid 5212] <... set_robust_list resumed>) = 0 [pid 5210] <... openat resumed>) = 4 [pid 5209] <... mount resumed>) = 0 [pid 5212] chdir("./23" [pid 5209] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5210] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5212] <... chdir resumed>) = 0 [pid 5210] exit_group(0 [pid 5209] <... openat resumed>) = 3 [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5209] chdir("./file0" [pid 5212] <... prctl resumed>) = 0 [pid 5209] <... chdir resumed>) = 0 [pid 5212] setpgid(0, 0 [pid 5210] <... exit_group resumed>) = ? [pid 5209] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5212] <... setpgid resumed>) = 0 [pid 5209] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5209] openat(AT_FDCWD, ".", O_RDONLY [pid 5212] <... openat resumed>) = 3 [pid 5209] <... openat resumed>) = 4 [pid 5209] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5209] exit_group(0 [pid 5212] write(3, "1000", 4 [pid 5209] <... exit_group resumed>) = ? [pid 5212] <... write resumed>) = 4 [pid 5209] +++ exited with 0 +++ [pid 5212] close(3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=34 /* 0.34 s */} --- [pid 5212] <... close resumed>) = 0 [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5212] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5210] +++ exited with 0 +++ [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=30 /* 0.30 s */} --- [pid 5079] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5080] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5212] memfd_create("syzkaller", 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] newfstatat(3, "", [pid 5079] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5212] <... memfd_create resumed>) = 3 [pid 5080] getdents64(3, [pid 5079] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] unlink("./23/binderfs") = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./23/binderfs") = 0 [ 119.040811][ T62] [ 119.040811][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.040811][ T62] [ 119.055817][ T11] [ 119.055817][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.055817][ T11] [ 119.087395][ T62] [ 119.087395][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.087395][ T62] [ 119.097928][ T11] [ 119.097928][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.097928][ T11] [ 119.098415][ T111] [ 119.098415][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.098415][ T111] [ 119.150885][ T5080] [ 119.150885][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.150885][ T5080] [ 119.163964][ T112] [ 119.163964][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.163964][ T112] [ 119.169038][ T5080] [ 119.169038][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.169038][ T5080] [ 119.184970][ T5079] [ 119.184970][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.184970][ T5079] [pid 5080] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5080] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./23/file0") = 0 [pid 5080] getdents64(3, [pid 5079] <... umount2 resumed>) = 0 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] close(3) = 0 [ 119.210250][ T5079] [ 119.210250][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 119.210250][ T5079] [pid 5079] newfstatat(AT_FDCWD, "./23/file0", [pid 5080] rmdir("./23" [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] mkdir("./24", 0777 [pid 5079] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./23/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./23") = 0 [pid 5079] mkdir("./24", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5213 ./strace-static-x86_64: Process 5213 attached [pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5213] set_robust_list(0x55557f81b660, 24) = 0 [pid 5213] chdir("./23") = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] setpgid(0, 0) = 0 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5213] write(3, "1000", 4) = 4 [pid 5213] close(3) = 0 [pid 5213] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5213] memfd_create("syzkaller", 0) = 3 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5214 attached [pid 5079] close(3 [pid 5214] set_robust_list(0x55557f81b660, 24 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5214 [pid 5079] <... close resumed>) = 0 [pid 5214] <... set_robust_list resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5214] chdir("./24") = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5214] setpgid(0, 0) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5215 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5215 attached [pid 5215] set_robust_list(0x55557f81b660, 24 [pid 5214] write(3, "1000", 4 [pid 5215] <... set_robust_list resumed>) = 0 [pid 5214] <... write resumed>) = 4 [pid 5215] chdir("./24" [pid 5214] close(3 [pid 5215] <... chdir resumed>) = 0 [pid 5214] <... close resumed>) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5214] memfd_create("syzkaller", 0 [pid 5215] <... prctl resumed>) = 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 5214] <... memfd_create resumed>) = 3 [pid 5215] close(3 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5215] <... close resumed>) = 0 [pid 5214] <... mmap resumed>) = 0x7f5a20600000 [pid 5215] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5215] memfd_create("syzkaller", 0) = 3 [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5211] <... write resumed>) = 16777216 [pid 5211] munmap(0x7f5a20600000, 138412032) = 0 [pid 5211] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5211] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5211] close(3 [pid 5212] <... write resumed>) = 16777216 [pid 5211] <... close resumed>) = 0 [pid 5211] close(4) = 0 [pid 5211] mkdir("./file0", 0777) = 0 [pid 5212] munmap(0x7f5a20600000, 138412032 [ 119.958095][ T5211] loop2: detected capacity change from 0 to 32768 [pid 5211] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5212] <... munmap resumed>) = 0 [pid 5212] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5212] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5211] <... mount resumed>) = 0 [pid 5211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5212] close(3) = 0 [pid 5211] <... openat resumed>) = 3 [pid 5212] close(4) = 0 [pid 5211] chdir("./file0") = 0 [pid 5212] mkdir("./file0", 0777 [pid 5211] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5212] <... mkdir resumed>) = 0 [pid 5211] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5212] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5211] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 120.040101][ T5211] [ 120.040101][ T5211] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.040101][ T5211] [ 120.056976][ T5212] loop3: detected capacity change from 0 to 32768 [pid 5211] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5211] exit_group(0) = ? [pid 5211] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5081] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./23/binderfs") = 0 [pid 5081] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5212] <... mount resumed>) = 0 [pid 5212] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5212] chdir("./file0") = 0 [ 120.110144][ T5212] [ 120.110144][ T5212] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.110144][ T5212] [ 120.134354][ T2436] [ 120.134354][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.134354][ T2436] [pid 5212] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5212] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5212] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5212] exit_group(0) = ? [pid 5212] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=25 /* 0.25 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5214] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", [pid 5215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./23/binderfs") = 0 [ 120.168318][ T2436] [ 120.168318][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.168318][ T2436] [ 120.207420][ T111] [ 120.207420][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.207420][ T111] [ 120.224229][ T62] [ 120.224229][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.224229][ T62] [ 120.227246][ T5081] [ 120.227246][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.227246][ T5081] [ 120.238118][ T62] [ 120.238118][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.238118][ T62] [pid 5082] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5213] <... write resumed>) = 16777216 [ 120.278085][ T5082] [ 120.278085][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.278085][ T5082] [ 120.287747][ T5081] [ 120.287747][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.287747][ T5081] [ 120.303383][ T111] [ 120.303383][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.303383][ T111] [ 120.320430][ T5082] [ 120.320430][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5213] munmap(0x7f5a20600000, 138412032) = 0 [pid 5213] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5213] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./23/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./23") = 0 [pid 5081] mkdir("./24", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./23/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./23") = 0 [pid 5082] mkdir("./24", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 120.320430][ T5082] [ 120.341990][ T5213] loop4: detected capacity change from 0 to 32768 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5213] <... ioctl resumed>) = 0 [pid 5213] close(3) = 0 [pid 5213] close(4) = 0 [pid 5213] mkdir("./file0", 0777) = 0 [pid 5213] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5213] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5213] chdir("./file0") = 0 [pid 5213] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5213] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5213] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5213] exit_group(0) = ? [ 120.429978][ T5213] [ 120.429978][ T5213] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.429978][ T5213] [pid 5213] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=37 /* 0.37 s */} --- [pid 5083] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./23/binderfs") = 0 [ 120.537871][ T62] [ 120.537871][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.537871][ T62] [ 120.570317][ T62] [ 120.570317][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.570317][ T62] [ 120.608015][ T112] [ 120.608015][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.608015][ T112] [ 120.638033][ T5083] [ 120.638033][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.638033][ T5083] [pid 5083] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [ 120.666556][ T5083] [ 120.666556][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.666556][ T5083] [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5216 ./strace-static-x86_64: Process 5216 attached [pid 5214] <... write resumed>) = 16777216 [pid 5216] set_robust_list(0x55557f81b660, 24 [pid 5214] munmap(0x7f5a20600000, 138412032 [pid 5216] <... set_robust_list resumed>) = 0 [pid 5216] chdir("./24") = 0 [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5216] setpgid(0, 0) = 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5216] write(3, "1000", 4) = 4 [pid 5216] close(3) = 0 [pid 5216] symlink("/dev/binderfs", "./binderfs" [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./23/file0", [pid 5216] <... symlink resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5216] memfd_create("syzkaller", 0 [pid 5214] <... munmap resumed>) = 0 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5216] <... memfd_create resumed>) = 3 [pid 5214] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] getdents64(4, [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5216] <... mmap resumed>) = 0x7f5a20600000 [pid 5214] <... openat resumed>) = 4 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5214] ioctl(4, LOOP_SET_FD, 3 [pid 5083] close(4) = 0 [pid 5083] rmdir("./23/file0") = 0 [pid 5215] <... write resumed>) = 16777216 [pid 5214] <... ioctl resumed>) = 0 [pid 5083] getdents64(3, [pid 5215] munmap(0x7f5a20600000, 138412032 [pid 5214] close(3 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5214] <... close resumed>) = 0 [pid 5083] close(3 [pid 5214] close(4 [pid 5083] <... close resumed>) = 0 [pid 5214] <... close resumed>) = 0 [pid 5083] rmdir("./23" [pid 5214] mkdir("./file0", 0777) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5214] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] mkdir("./24", 0777 [pid 5215] <... munmap resumed>) = 0 [pid 5083] <... mkdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [ 120.781647][ T5214] loop1: detected capacity change from 0 to 32768 [pid 5215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5082] <... ioctl resumed>) = 0 [pid 5215] ioctl(4, LOOP_SET_FD, 3 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5217 ./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x55557f81b660, 24) = 0 [pid 5217] chdir("./24") = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 [pid 5217] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5217] memfd_create("syzkaller", 0) = 3 [pid 5214] <... mount resumed>) = 0 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5214] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5217] <... mmap resumed>) = 0x7f5a20600000 [pid 5214] <... openat resumed>) = 3 [pid 5214] chdir("./file0") = 0 [pid 5215] <... ioctl resumed>) = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5215] close(3) = 0 [pid 5215] close(4) = 0 [pid 5214] openat(AT_FDCWD, ".", O_RDONLY [pid 5215] mkdir("./file0", 0777 [pid 5214] <... openat resumed>) = 4 [pid 5215] <... mkdir resumed>) = 0 [pid 5214] getdents64(4, [ 120.831213][ T5214] [ 120.831213][ T5214] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.831213][ T5214] [ 120.833864][ T5215] loop0: detected capacity change from 0 to 32768 [pid 5215] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5214] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5214] exit_group(0) = ? [pid 5214] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=30 /* 0.30 s */} --- [pid 5080] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./24/binderfs") = 0 [ 120.924102][ T62] [ 120.924102][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.924102][ T62] [ 120.949328][ T62] [ 120.949328][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.949328][ T62] [ 120.961790][ T5215] [ 120.961790][ T5215] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 120.961790][ T5215] [pid 5080] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5215] <... mount resumed>) = 0 [pid 5215] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5215] chdir("./file0") = 0 [pid 5215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5215] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5215] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5215] exit_group(0) = ? [pid 5215] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=33 /* 0.33 s */} --- [pid 5079] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./24/binderfs") = 0 [ 121.014363][ T111] [ 121.014363][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.014363][ T111] [ 121.041665][ T62] [ 121.041665][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.041665][ T62] [ 121.049203][ T5080] [ 121.049203][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.049203][ T5080] [ 121.079953][ T62] [ 121.079953][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.079953][ T62] [ 121.093708][ T5080] [ 121.093708][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.093708][ T5080] [ 121.104697][ T5079] [ 121.104697][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.104697][ T5079] [ 121.116368][ T111] [ 121.116368][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.116368][ T111] [pid 5079] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] <... ioctl resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5083] close(3 [pid 5079] newfstatat(4, "", [pid 5080] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 121.141093][ T5079] [ 121.141093][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.141093][ T5079] [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(4, [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./24/file0") = 0 [pid 5080] getdents64(3, [pid 5079] getdents64(4, [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5218 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] close(4 [pid 5080] rmdir("./24" [pid 5079] <... close resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5218 attached [pid 5218] set_robust_list(0x55557f81b660, 24 [pid 5080] mkdir("./25", 0777 [pid 5218] <... set_robust_list resumed>) = 0 [pid 5218] chdir("./24" [pid 5080] <... mkdir resumed>) = 0 [pid 5079] rmdir("./24/file0" [pid 5218] <... chdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5218] <... prctl resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [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] memfd_create("syzkaller", 0 [pid 5079] close(3 [pid 5218] <... memfd_create resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./24" [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./25", 0777 [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"..., 16777216 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5080] <... ioctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] close(3./strace-static-x86_64: Process 5219 attached [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5219 [pid 5080] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5219] set_robust_list(0x55557f81b660, 24) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5220 [pid 5219] chdir("./25"./strace-static-x86_64: Process 5220 attached ) = 0 [pid 5220] set_robust_list(0x55557f81b660, 24) = 0 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5220] chdir("./25") = 0 [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5220] setpgid(0, 0 [pid 5219] <... prctl resumed>) = 0 [pid 5220] <... setpgid resumed>) = 0 [pid 5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5219] setpgid(0, 0 [pid 5220] <... openat resumed>) = 3 [pid 5219] <... setpgid resumed>) = 0 [pid 5220] write(3, "1000", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5220] memfd_create("syzkaller", 0 [pid 5219] <... openat resumed>) = 3 [pid 5219] write(3, "1000", 4 [pid 5220] <... memfd_create resumed>) = 3 [pid 5219] <... write resumed>) = 4 [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5219] close(3 [pid 5220] <... mmap resumed>) = 0x7f5a20600000 [pid 5219] <... close resumed>) = 0 [pid 5219] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5219] memfd_create("syzkaller", 0) = 3 [pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5216] <... write resumed>) = 16777216 [pid 5219] <... mmap resumed>) = 0x7f5a20600000 [pid 5216] munmap(0x7f5a20600000, 138412032 [pid 5218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5216] <... munmap resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5216] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5216] close(3) = 0 [pid 5216] close(4) = 0 [pid 5216] mkdir("./file0", 0777) = 0 [ 121.808662][ T5216] loop2: detected capacity change from 0 to 32768 [pid 5216] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 121.862698][ T5216] [ 121.862698][ T5216] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 121.862698][ T5216] [pid 5217] <... write resumed>) = 16777216 [pid 5216] chdir("./file0") = 0 [pid 5217] munmap(0x7f5a20600000, 138412032 [pid 5216] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5216] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5216] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5216] exit_group(0) = ? [pid 5220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5216] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=28 /* 0.28 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5217] <... munmap resumed>) = 0 [pid 5081] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5217] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] newfstatat(AT_FDCWD, "./24/binderfs", [pid 5217] <... openat resumed>) = 4 [pid 5217] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./24/binderfs") = 0 [pid 5081] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5217] <... ioctl resumed>) = 0 [pid 5217] close(3) = 0 [pid 5217] close(4) = 0 [pid 5217] mkdir("./file0", 0777) = 0 [ 122.008543][ T5217] loop3: detected capacity change from 0 to 32768 [ 122.023816][ T62] [ 122.023816][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.023816][ T62] [ 122.047656][ T62] [ 122.047656][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.047656][ T62] [ 122.088549][ T112] [ 122.088549][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.088549][ T112] [ 122.098442][ T5217] [ 122.098442][ T5217] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.098442][ T5217] [ 122.109778][ T5081] [ 122.109778][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.109778][ T5081] [pid 5217] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5217] chdir("./file0") = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5217] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5081] <... umount2 resumed>) = 0 [ 122.147577][ T5081] [ 122.147577][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.147577][ T5081] [pid 5217] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5081] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5217] exit_group(0 [pid 5081] newfstatat(AT_FDCWD, "./24/file0", [pid 5217] <... exit_group resumed>) = ? [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [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"..., 16777216 [pid 5217] +++ exited with 0 +++ [pid 5081] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=31 /* 0.31 s */} --- [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", [pid 5082] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./24/binderfs" [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] <... unlink resumed>) = 0 [pid 5081] getdents64(4, [pid 5082] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./24/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./24") = 0 [pid 5081] mkdir("./25", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5218] <... write resumed>) = 16777216 [ 122.258923][ T62] [ 122.258923][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.258923][ T62] [ 122.287291][ T62] [ 122.287291][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.287291][ T62] [pid 5218] munmap(0x7f5a20600000, 138412032 [pid 5220] <... write resumed>) = 16777216 [ 122.317115][ T111] [ 122.317115][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.317115][ T111] [ 122.339918][ T5082] [ 122.339918][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.339918][ T5082] [ 122.359187][ T5082] [ 122.359187][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5220] munmap(0x7f5a20600000, 138412032 [pid 5218] <... munmap resumed>) = 0 [pid 5220] <... munmap resumed>) = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5220] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop4", O_RDWR [ 122.359187][ T5082] [pid 5082] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5220] <... openat resumed>) = 4 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5220] ioctl(4, LOOP_SET_FD, 3 [pid 5082] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5218] <... openat resumed>) = 4 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5218] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./24/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./24") = 0 [pid 5220] <... ioctl resumed>) = 0 [pid 5082] mkdir("./25", 0777 [pid 5220] close(3 [pid 5082] <... mkdir resumed>) = 0 [pid 5220] <... close resumed>) = 0 [pid 5220] close(4 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5218] <... ioctl resumed>) = 0 [pid 5220] <... close resumed>) = 0 [pid 5220] mkdir("./file0", 0777 [pid 5218] close(3) = 0 [pid 5218] close(4) = 0 [pid 5218] mkdir("./file0", 0777 [pid 5220] <... mkdir resumed>) = 0 [pid 5218] <... mkdir resumed>) = 0 [ 122.398794][ T5220] loop1: detected capacity change from 0 to 32768 [ 122.403229][ T5218] loop4: detected capacity change from 0 to 32768 [pid 5218] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5220] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5218] <... mount resumed>) = 0 [pid 5218] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5218] chdir("./file0") = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 122.488333][ T5218] [ 122.488333][ T5218] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.488333][ T5218] [ 122.493462][ T5220] [ 122.493462][ T5220] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.493462][ T5220] [pid 5218] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5218] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5218] exit_group(0) = ? [pid 5218] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=27 /* 0.27 s */} --- [pid 5083] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5220] <... mount resumed>) = 0 [pid 5220] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] <... openat resumed>) = 3 [pid 5220] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, [pid 5220] chdir("./file0" [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5220] <... chdir resumed>) = 0 [pid 5083] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5220] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5220] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./24/binderfs" [pid 5220] <... openat resumed>) = 4 [pid 5220] getdents64(4, [pid 5083] <... unlink resumed>) = 0 [pid 5220] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5220] exit_group(0 [pid 5083] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5220] <... exit_group resumed>) = ? [pid 5220] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5220, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=34 /* 0.34 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./25/binderfs") = 0 [ 122.600661][ T62] [ 122.600661][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.600661][ T62] [ 122.611619][ T2436] [ 122.611619][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.611619][ T2436] [ 122.636179][ T62] [ 122.636179][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.636179][ T62] [ 122.647562][ T2436] [ 122.647562][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.647562][ T2436] [ 122.668902][ T5080] [ 122.668902][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.668902][ T5080] [ 122.697588][ T5083] [pid 5080] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5219] <... write resumed>) = 16777216 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x55557f81b660, 24) = 0 [ 122.697588][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.697588][ T5083] [ 122.708421][ T112] [ 122.708421][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.708421][ T112] [ 122.708831][ T5083] [ 122.708831][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.708831][ T5083] [ 122.737248][ T5080] [ 122.737248][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.737248][ T5080] [pid 5221] chdir("./25" [pid 5219] munmap(0x7f5a20600000, 138412032 [pid 5080] <... umount2 resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5221 [pid 5221] <... chdir resumed>) = 0 [pid 5080] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [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 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5221] memfd_create("syzkaller", 0) = 3 [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] newfstatat(AT_FDCWD, "./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] newfstatat(AT_FDCWD, "./24/file0", [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./25/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [ 122.769789][ T111] [ 122.769789][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.769789][ T111] [pid 5083] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5219] <... munmap resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... ioctl resumed>) = 0 [pid 5080] close(3 [pid 5219] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5083] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... close resumed>) = 0 [pid 5219] <... openat resumed>) = 4 [pid 5083] <... openat resumed>) = 4 [pid 5082] close(3 [pid 5080] rmdir("./25" [pid 5083] newfstatat(4, "", [pid 5080] <... rmdir resumed>) = 0 [pid 5219] ioctl(4, LOOP_SET_FD, 3 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... close resumed>) = 0 [pid 5080] mkdir("./26", 0777 [pid 5219] <... ioctl resumed>) = 0 [pid 5083] getdents64(4, [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... mkdir resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] getdents64(4, [pid 5080] <... openat resumed>) = 3 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5222 attached [pid 5083] close(4 [pid 5222] set_robust_list(0x55557f81b660, 24 [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./24/file0" [pid 5222] <... set_robust_list resumed>) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5222] chdir("./25" [pid 5083] getdents64(3, [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5222 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5222] <... chdir resumed>) = 0 [pid 5083] rmdir("./24") = 0 [pid 5222] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] mkdir("./25", 0777 [pid 5222] <... prctl resumed>) = 0 [pid 5219] close(3 [pid 5083] <... mkdir resumed>) = 0 [pid 5222] setpgid(0, 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5222] <... setpgid resumed>) = 0 [pid 5219] <... close resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5219] close(4 [pid 5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5219] <... close resumed>) = 0 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5219] mkdir("./file0", 0777 [pid 5222] <... openat resumed>) = 3 [pid 5222] write(3, "1000", 4 [pid 5219] <... mkdir resumed>) = 0 [pid 5222] <... write resumed>) = 4 [pid 5222] close(3 [pid 5219] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5222] <... close resumed>) = 0 [pid 5222] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5222] memfd_create("syzkaller", 0) = 3 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 122.849802][ T5219] loop0: detected capacity change from 0 to 32768 [ 122.912287][ T5219] [ 122.912287][ T5219] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 122.912287][ T5219] [pid 5219] <... mount resumed>) = 0 [pid 5219] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5219] chdir("./file0") = 0 [pid 5219] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5219] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5219] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5219] exit_group(0) = ? [pid 5219] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./25/binderfs") = 0 [pid 5079] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 123.109482][ T11] [ 123.109482][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 123.109482][ T11] [ 123.140839][ T11] [ 123.140839][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 123.140839][ T11] [ 123.178527][ T111] [ 123.178527][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 123.178527][ T111] [ 123.207262][ T5079] [ 123.207262][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 123.207262][ T5079] [pid 5221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5223 ./strace-static-x86_64: Process 5223 attached [pid 5083] close(3 [pid 5223] set_robust_list(0x55557f81b660, 24) = 0 [pid 5083] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [ 123.234004][ T5079] [ 123.234004][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 123.234004][ T5079] [pid 5079] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5223] chdir("./26" [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5223] <... chdir resumed>) = 0 [pid 5079] newfstatat(AT_FDCWD, "./25/file0", [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5224 [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5223] setpgid(0, 0) = 0 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5223] write(3, "1000", 4) = 4 [pid 5223] close(3) = 0 [pid 5223] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 5224 attached [pid 5223] memfd_create("syzkaller", 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5224] set_robust_list(0x55557f81b660, 24 [pid 5079] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5223] <... memfd_create resumed>) = 3 [pid 5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5224] <... set_robust_list resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5224] chdir("./25" [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"..., 16777216 [pid 5079] <... openat resumed>) = 4 [pid 5224] <... chdir resumed>) = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] newfstatat(4, "", [pid 5224] <... prctl resumed>) = 0 [pid 5224] setpgid(0, 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5224] <... setpgid resumed>) = 0 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5224] <... openat resumed>) = 3 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5224] write(3, "1000", 4 [pid 5079] close(4 [pid 5224] <... write resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5224] close(3) = 0 [pid 5079] rmdir("./25/file0" [pid 5224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5224] memfd_create("syzkaller", 0 [pid 5079] getdents64(3, [pid 5224] <... memfd_create resumed>) = 3 [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5224] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./25") = 0 [pid 5079] mkdir("./26", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5221] <... write resumed>) = 16777216 ./strace-static-x86_64: Process 5225 attached [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5225 [pid 5225] set_robust_list(0x55557f81b660, 24) = 0 [pid 5225] chdir("./26") = 0 [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5225] setpgid(0, 0) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1000", 4 [pid 5221] munmap(0x7f5a20600000, 138412032 [pid 5225] <... write resumed>) = 4 [pid 5225] close(3) = 0 [pid 5225] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5225] memfd_create("syzkaller", 0) = 3 [pid 5223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5224] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5222] <... write resumed>) = 16777216 [pid 5221] <... munmap resumed>) = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5221] ioctl(4, LOOP_SET_FD, 3 [pid 5222] munmap(0x7f5a20600000, 138412032 [pid 5221] <... ioctl resumed>) = 0 [pid 5221] close(3) = 0 [pid 5221] close(4) = 0 [pid 5221] mkdir("./file0", 0777) = 0 [ 123.869461][ T5221] loop2: detected capacity change from 0 to 32768 [pid 5221] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5222] <... munmap resumed>) = 0 [ 123.916862][ T5221] [ 123.916862][ T5221] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 123.916862][ T5221] [pid 5222] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5221] <... mount resumed>) = 0 [pid 5222] ioctl(4, LOOP_SET_FD, 3 [pid 5221] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5221] chdir("./file0") = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5221] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5221] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5221] exit_group(0) = ? [pid 5221] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./25/binderfs") = 0 [pid 5081] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5222] <... ioctl resumed>) = 0 [pid 5222] close(3) = 0 [pid 5222] close(4) = 0 [pid 5222] mkdir("./file0", 0777) = 0 [ 123.959156][ T5222] loop3: detected capacity change from 0 to 32768 [ 123.980642][ T11] [ 123.980642][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 123.980642][ T11] [ 124.013807][ T11] [ 124.013807][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.013807][ T11] [ 124.051570][ T5081] [ 124.051570][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.051570][ T5081] [pid 5222] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5081] <... umount2 resumed>) = 0 [pid 5222] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5222] chdir("./file0") = 0 [pid 5222] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5081] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5222] openat(AT_FDCWD, ".", O_RDONLY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 124.088446][ T111] [ 124.088446][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.088446][ T111] [ 124.109841][ T5222] [ 124.109841][ T5222] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.109841][ T5222] [ 124.120847][ T5081] [ 124.120847][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.120847][ T5081] [pid 5222] <... openat resumed>) = 4 [pid 5081] newfstatat(AT_FDCWD, "./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5222] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5222] exit_group(0) = ? [pid 5081] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5222] +++ exited with 0 +++ [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5222, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=30 /* 0.30 s */} --- [pid 5081] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(4, "", [pid 5082] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, [pid 5082] <... openat resumed>) = 3 [pid 5082] newfstatat(3, "", [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./25/file0") = 0 [pid 5081] getdents64(3, [pid 5082] getdents64(3, [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] close(3 [pid 5224] <... write resumed>) = 16777216 [pid 5082] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./25" [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5224] munmap(0x7f5a20600000, 138412032 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./26", 0777) = 0 [pid 5082] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5082] unlink("./25/binderfs" [pid 5081] <... openat resumed>) = 3 [pid 5082] <... unlink resumed>) = 0 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5224] <... munmap resumed>) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 124.202848][ T11] [ 124.202848][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.202848][ T11] [ 124.227946][ T11] [ 124.227946][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.227946][ T11] [pid 5224] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5224] close(3) = 0 [pid 5224] close(4) = 0 [ 124.259947][ T5224] loop4: detected capacity change from 0 to 32768 [ 124.266114][ T5082] [ 124.266114][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.266114][ T5082] [pid 5224] mkdir("./file0", 0777) = 0 [pid 5224] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [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"..., 16777216 [ 124.308978][ T112] [ 124.308978][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.308978][ T112] [ 124.329677][ T5082] [ 124.329677][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.329677][ T5082] [ 124.344931][ T5224] [ 124.344931][ T5224] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.344931][ T5224] [pid 5223] <... write resumed>) = 16777216 [pid 5224] <... mount resumed>) = 0 [pid 5223] munmap(0x7f5a20600000, 138412032 [pid 5224] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] <... umount2 resumed>) = 0 [pid 5224] <... openat resumed>) = 3 [pid 5224] chdir("./file0") = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5224] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5224] getdents64(4, [pid 5082] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5224] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5224] exit_group(0 [pid 5082] newfstatat(AT_FDCWD, "./25/file0", [pid 5224] <... exit_group resumed>) = ? [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5224] +++ exited with 0 +++ [pid 5223] <... munmap resumed>) = 0 [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=28 /* 0.28 s */} --- [pid 5082] <... close resumed>) = 0 [pid 5223] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] rmdir("./25/file0" [pid 5223] <... openat resumed>) = 4 [pid 5223] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... rmdir resumed>) = 0 [pid 5083] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] getdents64(3, [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5223] <... ioctl resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] rmdir("./25") = 0 [pid 5083] getdents64(3, [pid 5223] close(3 [pid 5082] mkdir("./26", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5223] <... close resumed>) = 0 [pid 5083] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5223] close(4) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5223] mkdir("./file0", 0777 [pid 5083] newfstatat(AT_FDCWD, "./25/binderfs", [pid 5223] <... mkdir resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5223] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] unlink("./25/binderfs") = 0 [ 124.452476][ T5223] loop1: detected capacity change from 0 to 32768 [pid 5083] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5226 attached [pid 5226] set_robust_list(0x55557f81b660, 24) = 0 [pid 5226] chdir("./26") = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5226] setpgid(0, 0) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5226 [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "1000", 4) = 4 [pid 5226] close(3) = 0 [pid 5223] <... mount resumed>) = 0 [pid 5226] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5223] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5226] memfd_create("syzkaller", 0 [ 124.540749][ T62] [ 124.540749][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.540749][ T62] [ 124.541561][ T5223] [ 124.541561][ T5223] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.541561][ T5223] [ 124.576605][ T62] [ 124.576605][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.576605][ T62] [pid 5223] chdir("./file0") = 0 [pid 5223] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5226] <... memfd_create resumed>) = 3 [pid 5226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5223] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5223] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5226] <... mmap resumed>) = 0x7f5a20600000 [pid 5223] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5223] exit_group(0) = ? [pid 5223] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=37 /* 0.37 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./26/binderfs") = 0 [ 124.624968][ T111] [ 124.624968][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.624968][ T111] [ 124.663241][ T5083] [ 124.663241][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.663241][ T5083] [pid 5080] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 124.687976][ T2436] [ 124.687976][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.687976][ T2436] [ 124.707413][ T5083] [ 124.707413][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.707413][ T5083] [ 124.718455][ T2436] [ 124.718455][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.718455][ T2436] [pid 5083] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./25/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./25") = 0 [pid 5083] mkdir("./26", 0777) = 0 [pid 5225] <... write resumed>) = 16777216 [pid 5225] munmap(0x7f5a20600000, 138412032 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 124.757560][ T5080] [ 124.757560][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.757560][ T5080] [ 124.789974][ T112] [ 124.789974][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.789974][ T112] [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached [pid 5227] set_robust_list(0x55557f81b660, 24) = 0 [pid 5225] <... munmap resumed>) = 0 [pid 5227] chdir("./26" [pid 5225] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5227 [pid 5227] <... chdir resumed>) = 0 [pid 5225] <... openat resumed>) = 4 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5225] ioctl(4, LOOP_SET_FD, 3 [pid 5227] <... prctl resumed>) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5227] memfd_create("syzkaller", 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5225] <... ioctl resumed>) = 0 [pid 5225] close(3) = 0 [pid 5227] <... memfd_create resumed>) = 3 [pid 5225] close(4 [pid 5080] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5225] <... close resumed>) = 0 [ 124.809420][ T5080] [ 124.809420][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.809420][ T5080] [ 124.841191][ T5225] loop0: detected capacity change from 0 to 32768 [pid 5227] <... mmap resumed>) = 0x7f5a20600000 [pid 5225] mkdir("./file0", 0777 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5225] <... mkdir resumed>) = 0 [pid 5225] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] newfstatat(AT_FDCWD, "./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./26/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./26") = 0 [pid 5080] mkdir("./27", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 124.923430][ T5225] [ 124.923430][ T5225] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 124.923430][ T5225] [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5225] <... mount resumed>) = 0 [pid 5225] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5225] chdir("./file0") = 0 [pid 5225] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5225] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5225] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5225] exit_group(0) = ? [pid 5225] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=37 /* 0.37 s */} --- [pid 5079] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./26/binderfs") = 0 [pid 5079] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 125.027918][ T2436] [ 125.027918][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.027918][ T2436] [ 125.053004][ T2436] [ 125.053004][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.053004][ T2436] [ 125.097677][ T5079] [ 125.097677][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.097677][ T5079] [ 125.128216][ T111] [ 125.128216][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.128216][ T111] [pid 5226] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] <... umount2 resumed>) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5079] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 125.150768][ T5079] [ 125.150768][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.150768][ T5079] [pid 5079] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] close(3) = 0 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./26/file0") = 0 ./strace-static-x86_64: Process 5228 attached [pid 5228] set_robust_list(0x55557f81b660, 24) = 0 [pid 5228] chdir("./26" [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5228 [pid 5228] <... chdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5228] <... prctl resumed>) = 0 [pid 5079] close(3 [pid 5228] setpgid(0, 0 [pid 5079] <... close resumed>) = 0 [pid 5228] <... setpgid resumed>) = 0 [pid 5079] rmdir("./26" [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./27", 0777 [pid 5228] <... openat resumed>) = 3 [pid 5079] <... mkdir resumed>) = 0 [pid 5228] write(3, "1000", 4 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5228] <... write resumed>) = 4 [pid 5228] close(3) = 0 [pid 5228] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5228] memfd_create("syzkaller", 0) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5229 attached , child_tidptr=0x55557f81b650) = 5229 [pid 5229] set_robust_list(0x55557f81b660, 24) = 0 [pid 5229] chdir("./27") = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1000", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5229] memfd_create("syzkaller", 0) = 3 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5226] <... write resumed>) = 16777216 [pid 5226] munmap(0x7f5a20600000, 138412032) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5226] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5226] <... openat resumed>) = 4 [pid 5226] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5230 attached [pid 5227] <... write resumed>) = 16777216 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5230 [pid 5230] set_robust_list(0x55557f81b660, 24 [pid 5227] munmap(0x7f5a20600000, 138412032 [pid 5230] <... set_robust_list resumed>) = 0 [pid 5230] chdir("./27" [pid 5226] <... ioctl resumed>) = 0 [pid 5230] <... chdir resumed>) = 0 [pid 5226] close(3) = 0 [pid 5226] close(4) = 0 [pid 5226] mkdir("./file0", 0777) = 0 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5226] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5230] <... prctl resumed>) = 0 [pid 5230] setpgid(0, 0) = 0 [ 125.639223][ T5226] loop2: detected capacity change from 0 to 32768 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] <... munmap resumed>) = 0 [pid 5230] write(3, "1000", 4) = 4 [pid 5227] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5230] close(3 [pid 5227] <... openat resumed>) = 4 [pid 5230] <... close resumed>) = 0 [pid 5227] ioctl(4, LOOP_SET_FD, 3 [pid 5230] symlink("/dev/binderfs", "./binderfs") = 0 [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"..., 16777216 [pid 5230] memfd_create("syzkaller", 0) = 3 [pid 5226] <... mount resumed>) = 0 [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5227] <... ioctl resumed>) = 0 [pid 5230] <... mmap resumed>) = 0x7f5a20600000 [pid 5226] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5226] chdir("./file0") = 0 [pid 5226] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5227] close(3 [pid 5226] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5227] <... close resumed>) = 0 [pid 5226] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5227] close(4 [pid 5226] getdents64(4, [pid 5227] <... close resumed>) = 0 [pid 5226] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5227] mkdir("./file0", 0777 [pid 5226] exit_group(0) = ? [pid 5227] <... mkdir resumed>) = 0 [pid 5226] +++ exited with 0 +++ [pid 5227] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=26 /* 0.26 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 125.685915][ T5226] [ 125.685915][ T5226] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.685915][ T5226] [ 125.715385][ T5227] loop3: detected capacity change from 0 to 32768 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./26/binderfs") = 0 [ 125.792092][ T1837] [ 125.792092][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.792092][ T1837] [ 125.833357][ T5227] [ 125.833357][ T5227] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.833357][ T5227] [ 125.844727][ T1837] [ 125.844727][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.844727][ T1837] [pid 5081] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5227] <... mount resumed>) = 0 [pid 5227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5227] chdir("./file0") = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5227] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5227] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5227] exit_group(0) = ? [pid 5227] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=33 /* 0.33 s */} --- [pid 5082] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 125.882509][ T5081] [ 125.882509][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.882509][ T5081] [ 125.912927][ T112] [ 125.912927][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.912927][ T112] [ 125.928712][ T5081] [pid 5082] unlink("./26/binderfs" [pid 5229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... unlink resumed>) = 0 [ 125.928712][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.928712][ T5081] [ 125.949880][ T1837] [ 125.949880][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 125.949880][ T1837] [ 125.972923][ T1837] [ 125.972923][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5082] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./26/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [ 125.972923][ T1837] [pid 5081] close(3) = 0 [pid 5081] rmdir("./26") = 0 [pid 5081] mkdir("./27", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 126.011560][ T5082] [ 126.011560][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.011560][ T5082] [ 126.040236][ T112] [ 126.040236][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.040236][ T112] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 126.097299][ T5082] [ 126.097299][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.097299][ T5082] [pid 5082] newfstatat(AT_FDCWD, "./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./26/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./26") = 0 [pid 5082] mkdir("./27", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5230] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5228] <... write resumed>) = 16777216 [pid 5228] munmap(0x7f5a20600000, 138412032) = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5228] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5228] close(3) = 0 [pid 5228] close(4) = 0 [pid 5228] mkdir("./file0", 0777) = 0 [ 126.327774][ T5228] loop4: detected capacity change from 0 to 32768 [pid 5228] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] <... ioctl resumed>) = 0 [pid 5228] <... openat resumed>) = 3 [pid 5228] chdir("./file0") = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 126.381986][ T5228] [ 126.381986][ T5228] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.381986][ T5228] [pid 5228] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5081] close(3 [pid 5228] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5081] <... close resumed>) = 0 [pid 5228] exit_group(0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] <... exit_group resumed>) = ? [pid 5228] +++ exited with 0 +++ [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5231 [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=27 /* 0.27 s */} --- ./strace-static-x86_64: Process 5231 attached [pid 5083] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5231] set_robust_list(0x55557f81b660, 24 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5231] <... set_robust_list resumed>) = 0 [pid 5083] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", [pid 5231] chdir("./27" [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, [pid 5231] <... chdir resumed>) = 0 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5231] <... prctl resumed>) = 0 [pid 5083] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5231] setpgid(0, 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5231] <... setpgid resumed>) = 0 [pid 5083] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5231] <... openat resumed>) = 3 [pid 5083] unlink("./26/binderfs" [pid 5231] write(3, "1000", 4 [pid 5083] <... unlink resumed>) = 0 [pid 5231] <... write resumed>) = 4 [pid 5083] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5231] close(3) = 0 [pid 5231] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5231] memfd_create("syzkaller", 0) = 3 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 126.467738][ T62] [ 126.467738][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.467738][ T62] [ 126.505551][ T62] [ 126.505551][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.505551][ T62] [pid 5229] <... write resumed>) = 16777216 [pid 5229] munmap(0x7f5a20600000, 138412032 [pid 5082] <... ioctl resumed>) = 0 [ 126.547984][ T111] [ 126.547984][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.547984][ T111] [ 126.575554][ T5083] [ 126.575554][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.575554][ T5083] [pid 5082] close(3) = 0 [pid 5229] <... munmap resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5232 attached [pid 5229] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5232] set_robust_list(0x55557f81b660, 24 [pid 5229] <... openat resumed>) = 4 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5232 [pid 5232] <... set_robust_list resumed>) = 0 [pid 5230] <... write resumed>) = 16777216 [pid 5229] ioctl(4, LOOP_SET_FD, 3 [pid 5232] chdir("./27" [pid 5230] munmap(0x7f5a20600000, 138412032 [pid 5229] <... ioctl resumed>) = 0 [pid 5229] close(3 [pid 5232] <... chdir resumed>) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5083] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5232] setpgid(0, 0) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./26/file0", [pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5232] <... openat resumed>) = 3 [pid 5083] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5232] write(3, "1000", 4 [pid 5083] getdents64(4, [pid 5232] <... write resumed>) = 4 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5232] close(3 [pid 5083] getdents64(4, [pid 5232] <... close resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5232] symlink("/dev/binderfs", "./binderfs" [pid 5229] <... close resumed>) = 0 [pid 5083] close(4 [pid 5232] <... symlink resumed>) = 0 [pid 5229] close(4 [pid 5083] <... close resumed>) = 0 [pid 5229] <... close resumed>) = 0 [pid 5083] rmdir("./26/file0" [pid 5229] mkdir("./file0", 0777 [pid 5083] <... rmdir resumed>) = 0 [pid 5232] memfd_create("syzkaller", 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5232] <... memfd_create resumed>) = 3 [pid 5229] <... mkdir resumed>) = 0 [pid 5083] rmdir("./26" [pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5230] <... munmap resumed>) = 0 [pid 5229] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] <... rmdir resumed>) = 0 [pid 5232] <... mmap resumed>) = 0x7f5a20600000 [pid 5230] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 126.617468][ T5083] [ 126.617468][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.617468][ T5083] [ 126.640111][ T5229] loop1: detected capacity change from 0 to 32768 [pid 5083] mkdir("./27", 0777 [pid 5230] <... openat resumed>) = 4 [pid 5083] <... mkdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5230] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5230] close(3) = 0 [pid 5230] close(4) = 0 [pid 5230] mkdir("./file0", 0777) = 0 [pid 5230] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 126.703167][ T5230] loop0: detected capacity change from 0 to 32768 [ 126.716442][ T5229] [ 126.716442][ T5229] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.716442][ T5229] [pid 5229] <... mount resumed>) = 0 [pid 5229] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5229] chdir("./file0") = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5229] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5229] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5229] exit_group(0) = ? [pid 5229] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=30 /* 0.30 s */} --- [pid 5080] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./27/binderfs") = 0 [ 126.771340][ T5230] [ 126.771340][ T5230] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.771340][ T5230] [pid 5080] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5230] <... mount resumed>) = 0 [pid 5230] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5230] chdir("./file0") = 0 [pid 5230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5230] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 126.820560][ T2436] [ 126.820560][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.820560][ T2436] [ 126.855761][ T2436] [ 126.855761][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.855761][ T2436] [pid 5230] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5230] exit_group(0) = ? [ 126.869270][ T111] [ 126.869270][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.869270][ T111] [ 126.880894][ T5080] [ 126.880894][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.880894][ T5080] [pid 5230] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=26 /* 0.26 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./27/binderfs") = 0 [ 126.917507][ T5080] [ 126.917507][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.917507][ T5080] [pid 5079] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [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"..., 16777216 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [ 126.962061][ T2436] [ 126.962061][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.962061][ T2436] [ 126.982445][ T2436] [ 126.982445][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 126.982445][ T2436] [ 127.007650][ T111] [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./27/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./27") = 0 [pid 5080] mkdir("./28", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5233 attached , child_tidptr=0x55557f81b650) = 5233 [pid 5233] set_robust_list(0x55557f81b660, 24) = 0 [pid 5233] chdir("./27") = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... umount2 resumed>) = 0 [ 127.007650][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.007650][ T111] [ 127.027554][ T5079] [ 127.027554][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.027554][ T5079] [ 127.048612][ T5079] [ 127.048612][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.048612][ T5079] [pid 5233] <... prctl resumed>) = 0 [pid 5079] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5233] setpgid(0, 0) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] newfstatat(AT_FDCWD, "./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5233] <... openat resumed>) = 3 [pid 5079] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5233] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5233] <... write resumed>) = 4 [pid 5079] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5233] close(3) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5233] symlink("/dev/binderfs", "./binderfs" [pid 5079] newfstatat(4, "", [pid 5233] <... symlink resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5233] memfd_create("syzkaller", 0 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./27/file0") = 0 [pid 5233] <... memfd_create resumed>) = 3 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./27") = 0 [pid 5079] mkdir("./28", 0777 [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5231] <... write resumed>) = 16777216 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5234 [pid 5231] munmap(0x7f5a20600000, 138412032./strace-static-x86_64: Process 5234 attached [pid 5234] set_robust_list(0x55557f81b660, 24) = 0 [pid 5234] chdir("./28" [pid 5233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5234] <... chdir resumed>) = 0 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5234] setpgid(0, 0) = 0 [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5231] <... munmap resumed>) = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5234] write(3, "1000", 4 [pid 5231] ioctl(4, LOOP_SET_FD, 3 [pid 5234] <... write resumed>) = 4 [pid 5231] <... ioctl resumed>) = 0 [pid 5234] close(3 [pid 5231] close(3 [pid 5234] <... close resumed>) = 0 [pid 5231] <... close resumed>) = 0 [pid 5231] close(4) = 0 [pid 5234] symlink("/dev/binderfs", "./binderfs" [pid 5231] mkdir("./file0", 0777 [pid 5234] <... symlink resumed>) = 0 [pid 5231] <... mkdir resumed>) = 0 [pid 5232] <... write resumed>) = 16777216 [pid 5231] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5234] memfd_create("syzkaller", 0 [pid 5232] munmap(0x7f5a20600000, 138412032 [pid 5234] <... memfd_create resumed>) = 3 [ 127.537589][ T5231] loop2: detected capacity change from 0 to 32768 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5232] <... munmap resumed>) = 0 [pid 5231] <... mount resumed>) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5232] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5232] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5231] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5235 attached ) = 3 [pid 5235] set_robust_list(0x55557f81b660, 24 [pid 5231] chdir("./file0" [pid 5235] <... set_robust_list resumed>) = 0 [pid 5231] <... chdir resumed>) = 0 [pid 5235] chdir("./28" [pid 5231] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5235] <... chdir resumed>) = 0 [pid 5231] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5235] setpgid(0, 0) = 0 [pid 5231] openat(AT_FDCWD, ".", O_RDONLY [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] close(3 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5235 [pid 5235] <... openat resumed>) = 3 [pid 5232] <... close resumed>) = 0 [pid 5231] <... openat resumed>) = 4 [pid 5235] write(3, "1000", 4 [pid 5232] close(4 [pid 5235] <... write resumed>) = 4 [pid 5232] <... close resumed>) = 0 [pid 5235] close(3 [pid 5232] mkdir("./file0", 0777 [pid 5235] <... close resumed>) = 0 [pid 5232] <... mkdir resumed>) = 0 [pid 5235] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5231] getdents64(4, [pid 5235] memfd_create("syzkaller", 0 [pid 5232] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5235] <... memfd_create resumed>) = 3 [pid 5231] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5231] exit_group(0 [pid 5235] <... mmap resumed>) = 0x7f5a20600000 [pid 5231] <... exit_group resumed>) = ? [ 127.604919][ T5231] [ 127.604919][ T5231] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.604919][ T5231] [ 127.628929][ T5232] loop3: detected capacity change from 0 to 32768 [pid 5231] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=28 /* 0.28 s */} --- [pid 5081] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5232] <... mount resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5232] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5081] unlink("./27/binderfs" [pid 5232] chdir("./file0" [pid 5081] <... unlink resumed>) = 0 [ 127.689999][ T5232] [ 127.689999][ T5232] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.689999][ T5232] [pid 5081] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5232] <... chdir resumed>) = 0 [pid 5232] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5232] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5232] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5232] exit_group(0) = ? [pid 5232] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=27 /* 0.27 s */} --- [ 127.739918][ T2436] [ 127.739918][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.739918][ T2436] [ 127.766569][ T2436] [ 127.766569][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.766569][ T2436] [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 127.788976][ T5081] [ 127.788976][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.788976][ T5081] [ 127.817746][ T112] [ 127.817746][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.817746][ T112] [pid 5082] unlink("./27/binderfs") = 0 [pid 5082] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 127.838763][ T5081] [ 127.838763][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.838763][ T5081] [ 127.854408][ T62] [ 127.854408][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.854408][ T62] [pid 5081] newfstatat(AT_FDCWD, "./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5234] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 127.888290][ T62] [ 127.888290][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.888290][ T62] [ 127.905426][ T112] [ 127.905426][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.905426][ T112] [pid 5081] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./27/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./27") = 0 [pid 5081] mkdir("./28", 0777 [pid 5233] <... write resumed>) = 16777216 [pid 5233] munmap(0x7f5a20600000, 138412032 [pid 5082] <... umount2 resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5082] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./27/file0", [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... openat resumed>) = 3 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 127.937244][ T5082] [ 127.937244][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.937244][ T5082] [ 127.958353][ T5082] [ 127.958353][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 127.958353][ T5082] [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./27/file0" [pid 5233] <... munmap resumed>) = 0 [pid 5233] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] <... rmdir resumed>) = 0 [pid 5233] <... openat resumed>) = 4 [pid 5233] ioctl(4, LOOP_SET_FD, 3 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3 [pid 5233] <... ioctl resumed>) = 0 [pid 5233] close(3) = 0 [pid 5233] close(4) = 0 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./27" [pid 5233] mkdir("./file0", 0777 [pid 5082] <... rmdir resumed>) = 0 [pid 5233] <... mkdir resumed>) = 0 [pid 5233] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] mkdir("./28", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [ 128.040383][ T5233] loop4: detected capacity change from 0 to 32768 [pid 5235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5233] <... mount resumed>) = 0 [pid 5233] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5233] chdir("./file0") = 0 [pid 5233] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5233] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5233] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5233] exit_group(0) = ? [pid 5233] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=32 /* 0.32 s */} --- [pid 5083] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 128.117832][ T5233] [ 128.117832][ T5233] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.117832][ T5233] [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./27/binderfs") = 0 [ 128.187728][ T1837] [ 128.187728][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.187728][ T1837] [ 128.217981][ T1837] [ 128.217981][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.217981][ T1837] [ 128.253873][ T112] [ 128.253873][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.253873][ T112] [pid 5083] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [ 128.297315][ T5083] [ 128.297315][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.297315][ T5083] [ 128.311804][ T5083] [ 128.311804][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.311804][ T5083] [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5236 ./strace-static-x86_64: Process 5236 attached [pid 5236] set_robust_list(0x55557f81b660, 24) = 0 [pid 5236] chdir("./28") = 0 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5236] setpgid(0, 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5236] <... setpgid resumed>) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5236] <... openat resumed>) = 3 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5236] write(3, "1000", 4 [pid 5234] <... write resumed>) = 16777216 [pid 5236] <... write resumed>) = 4 [pid 5234] munmap(0x7f5a20600000, 138412032 [pid 5236] close(3) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5236] symlink("/dev/binderfs", "./binderfs" [pid 5083] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5236] <... symlink resumed>) = 0 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5236] memfd_create("syzkaller", 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, [pid 5236] <... memfd_create resumed>) = 3 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] close(4 [pid 5236] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./27/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./27") = 0 [pid 5083] mkdir("./28", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5234] <... munmap resumed>) = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5234] <... openat resumed>) = 4 [pid 5234] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5234] close(3) = 0 [ 128.458264][ T5234] loop1: detected capacity change from 0 to 32768 [pid 5234] close(4) = 0 [pid 5234] mkdir("./file0", 0777 [pid 5082] <... ioctl resumed>) = 0 [pid 5234] <... mkdir resumed>) = 0 [pid 5234] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5237 attached [pid 5237] set_robust_list(0x55557f81b660, 24 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5237 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5237] chdir("./28") = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5237] setpgid(0, 0) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5235] <... write resumed>) = 16777216 [pid 5237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5237] memfd_create("syzkaller", 0) = 3 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5235] munmap(0x7f5a20600000, 138412032 [pid 5234] <... mount resumed>) = 0 [ 128.560001][ T5234] [ 128.560001][ T5234] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.560001][ T5234] [pid 5234] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5234] chdir("./file0") = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5234] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5234] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5235] <... munmap resumed>) = 0 [pid 5234] exit_group(0 [pid 5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5234] <... exit_group resumed>) = ? [pid 5234] +++ exited with 0 +++ [pid 5235] <... openat resumed>) = 4 [pid 5235] ioctl(4, LOOP_SET_FD, 3 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=34 /* 0.34 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5080] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./28/binderfs") = 0 [pid 5080] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5235] <... ioctl resumed>) = 0 [pid 5235] close(3) = 0 [pid 5235] close(4) = 0 [pid 5235] mkdir("./file0", 0777) = 0 [ 128.671426][ T5235] loop0: detected capacity change from 0 to 32768 [ 128.684306][ T62] [ 128.684306][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.684306][ T62] [pid 5235] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5235] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 128.725248][ T62] [ 128.725248][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.725248][ T62] [ 128.741664][ T5235] [ 128.741664][ T5235] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.741664][ T5235] [ 128.763088][ T111] [ 128.763088][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.763088][ T111] [pid 5235] chdir("./file0") = 0 [pid 5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5235] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5235] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5235] exit_group(0) = ? [pid 5235] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 128.776724][ T5080] [ 128.776724][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.776724][ T5080] [ 128.814569][ T5080] [ 128.814569][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.814569][ T5080] [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./28/binderfs") = 0 [pid 5079] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... ioctl resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5238 [pid 5080] <... openat resumed>) = 4 [ 128.867651][ T62] [ 128.867651][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.867651][ T62] [ 128.887926][ T62] [ 128.887926][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.887926][ T62] [ 128.899265][ T112] [ 128.899265][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.899265][ T112] ./strace-static-x86_64: Process 5238 attached [pid 5080] newfstatat(4, "", [pid 5238] set_robust_list(0x55557f81b660, 24 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, [pid 5238] <... set_robust_list resumed>) = 0 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5238] chdir("./28" [pid 5080] getdents64(4, [pid 5238] <... chdir resumed>) = 0 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] close(4 [pid 5238] setpgid(0, 0) = 0 [pid 5080] <... close resumed>) = 0 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] rmdir("./28/file0" [pid 5238] <... openat resumed>) = 3 [pid 5238] write(3, "1000", 4 [pid 5080] <... rmdir resumed>) = 0 [pid 5238] <... write resumed>) = 4 [pid 5080] getdents64(3, [pid 5238] close(3) = 0 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5238] symlink("/dev/binderfs", "./binderfs" [pid 5080] close(3 [pid 5238] <... symlink resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5238] memfd_create("syzkaller", 0 [pid 5080] rmdir("./28" [pid 5079] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5238] <... memfd_create resumed>) = 3 [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5238] <... mmap resumed>) = 0x7f5a20600000 [pid 5079] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 128.932133][ T5079] [ 128.932133][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.932133][ T5079] [ 128.943780][ T5079] [ 128.943780][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 128.943780][ T5079] [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./28/file0" [pid 5080] mkdir("./29", 0777) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./28" [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] <... rmdir resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] mkdir("./29", 0777 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5238] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5236] <... write resumed>) = 16777216 [pid 5236] munmap(0x7f5a20600000, 138412032 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5080] <... ioctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5080] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5239 ./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x55557f81b660, 24./strace-static-x86_64: Process 5240 attached ) = 0 [pid 5237] <... write resumed>) = 16777216 [pid 5236] <... munmap resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5240 [pid 5239] chdir("./29" [pid 5237] munmap(0x7f5a20600000, 138412032 [pid 5239] <... chdir resumed>) = 0 [pid 5240] set_robust_list(0x55557f81b660, 24 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] <... set_robust_list resumed>) = 0 [pid 5239] <... prctl resumed>) = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5240] chdir("./29" [pid 5239] setpgid(0, 0 [pid 5236] <... openat resumed>) = 4 [pid 5240] <... chdir resumed>) = 0 [pid 5239] <... setpgid resumed>) = 0 [pid 5236] ioctl(4, LOOP_SET_FD, 3 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5240] <... prctl resumed>) = 0 [pid 5239] <... openat resumed>) = 3 [pid 5240] setpgid(0, 0 [pid 5239] write(3, "1000", 4 [pid 5240] <... setpgid resumed>) = 0 [pid 5239] <... write resumed>) = 4 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] close(3 [pid 5240] <... openat resumed>) = 3 [pid 5240] write(3, "1000", 4 [pid 5239] <... close resumed>) = 0 [pid 5240] <... write resumed>) = 4 [pid 5239] symlink("/dev/binderfs", "./binderfs" [pid 5237] <... munmap resumed>) = 0 [pid 5240] close(3 [pid 5239] <... symlink resumed>) = 0 [pid 5240] <... close resumed>) = 0 [pid 5239] memfd_create("syzkaller", 0 [pid 5237] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5240] symlink("/dev/binderfs", "./binderfs" [pid 5237] <... openat resumed>) = 4 [pid 5240] <... symlink resumed>) = 0 [pid 5240] memfd_create("syzkaller", 0 [pid 5239] <... memfd_create resumed>) = 3 [pid 5237] ioctl(4, LOOP_SET_FD, 3 [pid 5240] <... memfd_create resumed>) = 3 [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5236] <... ioctl resumed>) = 0 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5239] <... mmap resumed>) = 0x7f5a20600000 [pid 5236] close(3 [pid 5240] <... mmap resumed>) = 0x7f5a20600000 [pid 5237] <... ioctl resumed>) = 0 [pid 5236] <... close resumed>) = 0 [pid 5237] close(3) = 0 [pid 5237] close(4) = 0 [pid 5237] mkdir("./file0", 0777 [pid 5236] close(4 [pid 5237] <... mkdir resumed>) = 0 [pid 5236] <... close resumed>) = 0 [pid 5237] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5236] mkdir("./file0", 0777) = 0 [ 129.508841][ T5236] loop2: detected capacity change from 0 to 32768 [ 129.544698][ T5237] loop3: detected capacity change from 0 to 32768 [pid 5236] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5236] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5236] chdir("./file0") = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5236] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5236] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5236] exit_group(0) = ? [pid 5236] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5081] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 129.590052][ T5236] [ 129.590052][ T5236] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.590052][ T5236] [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./28/binderfs") = 0 [pid 5237] <... mount resumed>) = 0 [ 129.650804][ T5237] [ 129.650804][ T5237] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.650804][ T5237] [pid 5081] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5237] chdir("./file0") = 0 [pid 5237] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5237] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5237] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5237] exit_group(0) = ? [pid 5237] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=34 /* 0.34 s */} --- [pid 5238] <... write resumed>) = 16777216 [ 129.703812][ T1837] [ 129.703812][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.703812][ T1837] [ 129.737544][ T1837] [ 129.737544][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.737544][ T1837] [pid 5238] munmap(0x7f5a20600000, 138412032 [pid 5082] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./28/binderfs") = 0 [pid 5082] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5238] <... munmap resumed>) = 0 [pid 5238] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 129.767726][ T112] [ 129.767726][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.767726][ T112] [ 129.791677][ T2436] [ 129.791677][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.791677][ T2436] [ 129.803139][ T5081] [ 129.803139][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.803139][ T5081] [pid 5238] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5238] close(3) = 0 [pid 5238] close(4) = 0 [pid 5238] mkdir("./file0", 0777) = 0 [ 129.826556][ T5238] loop4: detected capacity change from 0 to 32768 [ 129.827361][ T2436] [ 129.827361][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.827361][ T2436] [ 129.854863][ T5081] [ 129.854863][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.854863][ T5081] [pid 5238] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./28/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./28") = 0 [pid 5081] mkdir("./29", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [ 129.882946][ T111] [ 129.882946][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.882946][ T111] [ 129.903457][ T5082] [ 129.903457][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.903457][ T5082] [ 129.903527][ T5238] [ 129.903527][ T5238] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.903527][ T5238] [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"..., 16777216 [pid 5238] <... mount resumed>) = 0 [pid 5238] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5238] chdir("./file0") = 0 [pid 5238] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5238] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5238] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5238] exit_group(0) = ? [ 129.948974][ T5082] [ 129.948974][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 129.948974][ T5082] [pid 5238] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=35 /* 0.35 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5083] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", [pid 5082] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] close(4 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./28/file0" [pid 5083] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... rmdir resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./28/binderfs", [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] rmdir("./28" [pid 5083] unlink("./28/binderfs" [pid 5082] <... rmdir resumed>) = 0 [pid 5083] <... unlink resumed>) = 0 [pid 5082] mkdir("./29", 0777 [pid 5083] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... mkdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... openat resumed>) = 3 [ 130.057717][ T1837] [ 130.057717][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.057717][ T1837] [ 130.079162][ T1837] [ 130.079162][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.079162][ T1837] [ 130.103660][ T112] [ 130.103660][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.103660][ T112] [ 130.123294][ T5083] [ 130.123294][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.123294][ T5083] [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] <... umount2 resumed>) = 0 [ 130.157543][ T5083] [ 130.157543][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.157543][ T5083] [pid 5083] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./28/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./28") = 0 [pid 5083] mkdir("./29", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5241 ./strace-static-x86_64: Process 5241 attached [pid 5241] set_robust_list(0x55557f81b660, 24) = 0 [pid 5241] chdir("./29") = 0 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] <... write resumed>) = 16777216 [pid 5241] <... prctl resumed>) = 0 [pid 5241] setpgid(0, 0 [pid 5240] munmap(0x7f5a20600000, 138412032 [pid 5241] <... setpgid resumed>) = 0 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5241] write(3, "1000", 4) = 4 [pid 5241] close(3) = 0 [pid 5241] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5241] memfd_create("syzkaller", 0) = 3 [pid 5240] <... munmap resumed>) = 0 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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] close(4) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5240] mkdir("./file0", 0777) = 0 [ 130.439519][ T5240] loop0: detected capacity change from 0 to 32768 [pid 5240] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5242 ./strace-static-x86_64: Process 5242 attached [pid 5242] set_robust_list(0x55557f81b660, 24) = 0 [pid 5242] chdir("./29") = 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] memfd_create("syzkaller", 0) = 3 [pid 5240] <... mount resumed>) = 0 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5240] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5242] <... mmap resumed>) = 0x7f5a20600000 [pid 5240] <... openat resumed>) = 3 [pid 5240] chdir("./file0") = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 130.508738][ T5240] [ 130.508738][ T5240] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.508738][ T5240] [pid 5240] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5240] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5240] exit_group(0) = ? [pid 5240] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=33 /* 0.33 s */} --- [pid 5079] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./29/binderfs") = 0 [pid 5079] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5239] <... write resumed>) = 16777216 [pid 5239] munmap(0x7f5a20600000, 138412032) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5239] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] close(3) = 0 [pid 5239] <... openat resumed>) = 4 [ 130.618713][ T1837] [ 130.618713][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.618713][ T1837] [ 130.645084][ T1837] [ 130.645084][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.645084][ T1837] [pid 5239] ioctl(4, LOOP_SET_FD, 3 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached , child_tidptr=0x55557f81b650) = 5243 [pid 5243] set_robust_list(0x55557f81b660, 24) = 0 [pid 5243] chdir("./29" [pid 5239] <... ioctl resumed>) = 0 [pid 5239] close(3) = 0 [pid 5239] close(4) = 0 [pid 5239] mkdir("./file0", 0777 [pid 5243] <... chdir resumed>) = 0 [pid 5239] <... mkdir resumed>) = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5243] setpgid(0, 0) = 0 [ 130.667676][ T111] [ 130.667676][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.667676][ T111] [ 130.670288][ T5239] loop1: detected capacity change from 0 to 32768 [ 130.708244][ T5079] [ 130.708244][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.708244][ T5079] [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3) = 0 [pid 5243] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5243] memfd_create("syzkaller", 0) = 3 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5239] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5239] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] chdir("./file0" [pid 5079] newfstatat(AT_FDCWD, "./29/file0", [pid 5239] <... chdir resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5239] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5239] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5239] <... openat resumed>) = 4 [pid 5079] <... openat resumed>) = 4 [ 130.748882][ T5079] [ 130.748882][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.748882][ T5079] [ 130.769513][ T5239] [ 130.769513][ T5239] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.769513][ T5239] [pid 5239] getdents64(4, [pid 5079] newfstatat(4, "", [pid 5239] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5239] exit_group(0 [pid 5079] getdents64(4, [pid 5239] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5239] +++ exited with 0 +++ [pid 5079] rmdir("./29/file0" [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] <... rmdir resumed>) = 0 [pid 5080] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] getdents64(3, [pid 5080] newfstatat(3, "", [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] close(3 [pid 5080] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] rmdir("./29" [pid 5080] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./30", 0777) = 0 [pid 5080] newfstatat(AT_FDCWD, "./29/binderfs", [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./29/binderfs" [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5080] <... unlink resumed>) = 0 [ 130.865402][ T2436] [ 130.865402][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.865402][ T2436] [ 130.887792][ T2436] [ 130.887792][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.887792][ T2436] [ 130.918600][ T5080] [ 130.918600][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.918600][ T5080] [ 130.957471][ T112] [ 130.957471][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.957471][ T112] [pid 5080] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 130.987674][ T5080] [ 130.987674][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 130.987674][ T5080] [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./29/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./29") = 0 [pid 5080] mkdir("./30", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [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"..., 16777216 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5244 attached , child_tidptr=0x55557f81b650) = 5244 [pid 5244] set_robust_list(0x55557f81b660, 24) = 0 [pid 5244] chdir("./30") = 0 [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5244] setpgid(0, 0) = 0 [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5244] write(3, "1000", 4) = 4 [pid 5244] close(3) = 0 [pid 5244] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5244] memfd_create("syzkaller", 0) = 3 [pid 5244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5241] <... write resumed>) = 16777216 [pid 5241] munmap(0x7f5a20600000, 138412032) = 0 [pid 5241] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5241] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5241] close(3) = 0 [pid 5241] close(4) = 0 [pid 5241] mkdir("./file0", 0777) = 0 [ 131.409971][ T5241] loop2: detected capacity change from 0 to 32768 [pid 5241] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5241] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5241] chdir("./file0") = 0 [pid 5241] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5241] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5241] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5241] exit_group(0) = ? [pid 5241] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5081] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 131.457687][ T5241] [ 131.457687][ T5241] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.457687][ T5241] [pid 5081] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./29/binderfs") = 0 [pid 5081] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [ 131.552869][ T2436] [ 131.552869][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.552869][ T2436] [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5245 attached , child_tidptr=0x55557f81b650) = 5245 [pid 5245] set_robust_list(0x55557f81b660, 24) = 0 [pid 5245] chdir("./30") = 0 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5245] setpgid(0, 0 [pid 5242] <... write resumed>) = 16777216 [pid 5245] <... setpgid resumed>) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 131.597616][ T2436] [ 131.597616][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.597616][ T2436] [ 131.628963][ T5081] [ 131.628963][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.628963][ T5081] [pid 5242] munmap(0x7f5a20600000, 138412032 [pid 5245] <... openat resumed>) = 3 [pid 5245] write(3, "1000", 4) = 4 [pid 5245] close(3) = 0 [pid 5245] symlink("/dev/binderfs", "./binderfs" [pid 5242] <... munmap resumed>) = 0 [pid 5245] <... symlink resumed>) = 0 [pid 5242] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5245] memfd_create("syzkaller", 0 [pid 5242] ioctl(4, LOOP_SET_FD, 3 [pid 5245] <... memfd_create resumed>) = 3 [pid 5242] <... ioctl resumed>) = 0 [pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5242] close(3) = 0 [pid 5242] close(4) = 0 [pid 5081] <... umount2 resumed>) = 0 [pid 5242] mkdir("./file0", 0777 [pid 5081] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5242] <... mkdir resumed>) = 0 [pid 5081] newfstatat(AT_FDCWD, "./29/file0", [pid 5242] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 131.652462][ T111] [ 131.652462][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.652462][ T111] [ 131.672915][ T5081] [ 131.672915][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.672915][ T5081] [ 131.691665][ T5242] loop3: detected capacity change from 0 to 32768 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./29/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./29" [pid 5243] <... write resumed>) = 16777216 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./30", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5243] munmap(0x7f5a20600000, 138412032) = 0 [pid 5242] <... mount resumed>) = 0 [pid 5243] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5242] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5242] chdir("./file0") = 0 [pid 5242] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5242] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5242] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5242] exit_group(0) = ? [ 131.758312][ T5242] [ 131.758312][ T5242] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.758312][ T5242] [pid 5243] <... openat resumed>) = 4 [pid 5242] +++ exited with 0 +++ [pid 5243] ioctl(4, LOOP_SET_FD, 3 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=30 /* 0.30 s */} --- [pid 5082] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", [pid 5243] <... ioctl resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5243] close(3 [pid 5082] getdents64(3, [pid 5243] <... close resumed>) = 0 [pid 5243] close(4 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5243] <... close resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5243] mkdir("./file0", 0777 [pid 5082] unlink("./29/binderfs" [pid 5243] <... mkdir resumed>) = 0 [pid 5082] <... unlink resumed>) = 0 [pid 5243] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 131.828232][ T5243] loop4: detected capacity change from 0 to 32768 [ 131.867449][ T2436] [ 131.867449][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.867449][ T2436] [pid 5082] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5244] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5243] <... mount resumed>) = 0 [ 131.882478][ T5243] [ 131.882478][ T5243] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.882478][ T5243] [ 131.907282][ T2436] [ 131.907282][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.907282][ T2436] [ 131.924050][ T111] [ 131.924050][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5243] chdir("./file0") = 0 [pid 5243] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5243] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5243] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5243] exit_group(0) = ? [pid 5243] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=28 /* 0.28 s */} --- [pid 5083] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 131.924050][ T111] [ 131.947628][ T5082] [ 131.947628][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.947628][ T5082] [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./29/binderfs") = 0 [ 131.997366][ T5082] [ 131.997366][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 131.997366][ T5082] [ 132.008569][ T2436] [ 132.008569][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.008569][ T2436] [ 132.024388][ T2436] [ 132.024388][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.024388][ T2436] [pid 5083] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] newfstatat(AT_FDCWD, "./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [ 132.051351][ T112] [ 132.051351][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.051351][ T112] [ 132.077457][ T5083] [ 132.077457][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.077457][ T5083] [ 132.089994][ T5083] [ 132.089994][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.089994][ T5083] [pid 5082] close(4) = 0 [pid 5082] rmdir("./29/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5082] rmdir("./29" [pid 5083] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... rmdir resumed>) = 0 [pid 5081] close(3 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... close resumed>) = 0 [pid 5083] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] mkdir("./30", 0777 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./29/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5083] rmdir("./29") = 0 [pid 5083] mkdir("./30", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5246 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5246 attached [pid 5246] set_robust_list(0x55557f81b660, 24) = 0 [pid 5246] chdir("./30") = 0 [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5246] setpgid(0, 0) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5246] write(3, "1000", 4) = 4 [pid 5246] close(3) = 0 [pid 5246] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5246] memfd_create("syzkaller", 0) = 3 [pid 5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5244] <... write resumed>) = 16777216 [pid 5244] munmap(0x7f5a20600000, 138412032) = 0 [pid 5244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5244] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5244] close(3) = 0 [pid 5244] close(4) = 0 [ 132.382251][ T5244] loop0: detected capacity change from 0 to 32768 [pid 5244] mkdir("./file0", 0777) = 0 [pid 5244] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5244] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5244] chdir("./file0") = 0 [pid 5244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5244] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5244] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5244] exit_group(0) = ? [ 132.490200][ T5244] [ 132.490200][ T5244] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.490200][ T5244] [pid 5244] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=33 /* 0.33 s */} --- [pid 5079] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5083] <... ioctl resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./30/binderfs") = 0 [pid 5079] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... ioctl resumed>) = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5247 ./strace-static-x86_64: Process 5247 attached [pid 5082] close(3) = 0 [pid 5247] set_robust_list(0x55557f81b660, 24 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5247] <... set_robust_list resumed>) = 0 [pid 5245] <... write resumed>) = 16777216 [pid 5245] munmap(0x7f5a20600000, 138412032 [pid 5247] chdir("./30") = 0 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5247] setpgid(0, 0) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 132.573413][ T62] [ 132.573413][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.573413][ T62] [ 132.611454][ T62] [ 132.611454][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.611454][ T62] [pid 5247] write(3, "1000", 4./strace-static-x86_64: Process 5248 attached [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"..., 16777216 [pid 5245] <... munmap resumed>) = 0 [pid 5247] <... write resumed>) = 4 [pid 5247] close(3) = 0 [pid 5247] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5248] set_robust_list(0x55557f81b660, 24 [pid 5247] memfd_create("syzkaller", 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5248 [pid 5247] <... memfd_create resumed>) = 3 [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5245] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5248] <... set_robust_list resumed>) = 0 [pid 5248] chdir("./30" [pid 5245] <... openat resumed>) = 4 [pid 5245] ioctl(4, LOOP_SET_FD, 3 [pid 5248] <... chdir resumed>) = 0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 132.637664][ T112] [ 132.637664][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.637664][ T112] [ 132.660885][ T5245] loop1: detected capacity change from 0 to 32768 [ 132.667284][ T5079] [ 132.667284][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.667284][ T5079] [pid 5245] <... ioctl resumed>) = 0 [pid 5245] close(3) = 0 [pid 5245] close(4) = 0 [pid 5245] mkdir("./file0", 0777) = 0 [pid 5245] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [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] memfd_create("syzkaller", 0) = 3 [pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5245] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5245] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5079] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5245] chdir("./file0") = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 132.687033][ T5079] [ 132.687033][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.687033][ T5079] [ 132.720423][ T5245] [ 132.720423][ T5245] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.720423][ T5245] [pid 5079] newfstatat(AT_FDCWD, "./30/file0", [pid 5245] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5245] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5245] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5079] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5245] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 4 [pid 5245] exit_group(0 [pid 5079] newfstatat(4, "", [pid 5245] <... exit_group resumed>) = ? [pid 5245] +++ exited with 0 +++ [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=28 /* 0.28 s */} --- [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(4, [pid 5080] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] close(4 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] <... close resumed>) = 0 [pid 5080] getdents64(3, [pid 5079] rmdir("./30/file0" [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./30/binderfs", [pid 5079] getdents64(3, [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./30/binderfs" [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5080] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] close(3) = 0 [pid 5079] rmdir("./30") = 0 [pid 5079] mkdir("./31", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 132.801166][ T2436] [ 132.801166][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.801166][ T2436] [ 132.837393][ T2436] [ 132.837393][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.837393][ T2436] [ 132.878367][ T5080] [ 132.878367][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.878367][ T5080] [ 132.938022][ T111] [ 132.938022][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.938022][ T111] [ 132.967242][ T5080] [ 132.967242][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 132.967242][ T5080] [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./30/file0") = 0 [pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./30") = 0 [pid 5080] mkdir("./31", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5248] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5249 attached [pid 5246] <... write resumed>) = 16777216 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5249 [pid 5249] set_robust_list(0x55557f81b660, 24) = 0 [pid 5249] chdir("./31") = 0 [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5249] setpgid(0, 0) = 0 [pid 5246] munmap(0x7f5a20600000, 138412032 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5249] write(3, "1000", 4) = 4 [pid 5249] close(3 [pid 5246] <... munmap resumed>) = 0 [pid 5249] <... close resumed>) = 0 [pid 5249] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5246] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5249] memfd_create("syzkaller", 0 [pid 5246] <... openat resumed>) = 4 [pid 5249] <... memfd_create resumed>) = 3 [pid 5246] ioctl(4, LOOP_SET_FD, 3 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5246] <... ioctl resumed>) = 0 [pid 5246] close(3) = 0 [pid 5246] close(4) = 0 [pid 5246] mkdir("./file0", 0777) = 0 [ 133.323880][ T5246] loop2: detected capacity change from 0 to 32768 [pid 5246] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5246] <... mount resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5246] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5246] chdir("./file0") = 0 [pid 5246] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5246] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5246] getdents64(4, [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5250 [pid 5246] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5246] exit_group(0) = ? ./strace-static-x86_64: Process 5250 attached [pid 5246] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=35 /* 0.35 s */} --- [pid 5250] set_robust_list(0x55557f81b660, 24 [pid 5081] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", [pid 5250] <... set_robust_list resumed>) = 0 [pid 5250] chdir("./31" [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5250] <... chdir resumed>) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] getdents64(3, [pid 5250] <... prctl resumed>) = 0 [pid 5250] setpgid(0, 0 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5250] <... setpgid resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 133.395559][ T5246] [ 133.395559][ T5246] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.395559][ T5246] [pid 5250] <... openat resumed>) = 3 [pid 5081] newfstatat(AT_FDCWD, "./30/binderfs", [pid 5250] write(3, "1000", 4) = 4 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5250] close(3 [pid 5081] unlink("./30/binderfs" [pid 5250] <... close resumed>) = 0 [pid 5250] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... unlink resumed>) = 0 [pid 5250] <... symlink resumed>) = 0 [pid 5081] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] memfd_create("syzkaller", 0) = 3 [pid 5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 133.471715][ T62] [ 133.471715][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.471715][ T62] [ 133.497660][ T62] [ 133.497660][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.497660][ T62] [ 133.527105][ T112] [ 133.527105][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.527105][ T112] [ 133.547234][ T5081] [ 133.547234][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.547234][ T5081] [ 133.567873][ T5081] [ 133.567873][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5081] <... umount2 resumed>) = 0 [ 133.567873][ T5081] [pid 5081] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5247] <... write resumed>) = 16777216 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5247] munmap(0x7f5a20600000, 138412032 [pid 5081] newfstatat(AT_FDCWD, "./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./30/file0") = 0 [pid 5247] <... munmap resumed>) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5247] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5081] close(3) = 0 [pid 5247] <... openat resumed>) = 4 [pid 5081] rmdir("./30" [pid 5248] <... write resumed>) = 16777216 [pid 5247] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5248] munmap(0x7f5a20600000, 138412032 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./31", 0777) = 0 [pid 5247] close(3) = 0 [pid 5247] close(4) = 0 [pid 5247] mkdir("./file0", 0777 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5247] <... mkdir resumed>) = 0 [ 133.687312][ T5247] loop4: detected capacity change from 0 to 32768 [pid 5247] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5248] <... munmap resumed>) = 0 [pid 5248] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5248] ioctl(4, LOOP_SET_FD, 3 [pid 5247] <... mount resumed>) = 0 [pid 5248] <... ioctl resumed>) = 0 [pid 5247] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5248] close(3 [pid 5247] <... openat resumed>) = 3 [pid 5248] <... close resumed>) = 0 [pid 5248] close(4) = 0 [pid 5247] chdir("./file0") = 0 [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"..., 16777216 [pid 5248] mkdir("./file0", 0777 [ 133.740127][ T5247] [ 133.740127][ T5247] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.740127][ T5247] [ 133.764716][ T5248] loop3: detected capacity change from 0 to 32768 [pid 5247] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5248] <... mkdir resumed>) = 0 [pid 5247] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5247] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5248] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5247] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5247] exit_group(0) = ? [pid 5247] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=37 /* 0.37 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", [pid 5248] <... mount resumed>) = 0 [pid 5248] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5248] <... openat resumed>) = 3 [pid 5083] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5248] chdir("./file0") = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] newfstatat(AT_FDCWD, "./30/binderfs", [pid 5248] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 133.860839][ T5248] [ 133.860839][ T5248] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.860839][ T5248] [pid 5248] openat(AT_FDCWD, ".", O_RDONLY [pid 5083] unlink("./30/binderfs" [pid 5248] <... openat resumed>) = 4 [pid 5083] <... unlink resumed>) = 0 [pid 5248] getdents64(4, [pid 5083] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5248] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5248] exit_group(0) = ? [pid 5248] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=30 /* 0.30 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./30/binderfs") = 0 [ 133.944375][ T2436] [ 133.944375][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.944375][ T2436] [ 133.962609][ T2436] [ 133.962609][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.962609][ T2436] [ 133.976273][ T62] [ 133.976273][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.976273][ T62] [ 133.997229][ T62] [ 133.997229][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.997229][ T62] [ 133.997569][ T5083] [ 133.997569][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 133.997569][ T5083] [ 134.017710][ T5082] [ 134.017710][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.017710][ T5082] [ 134.038389][ T112] [ 134.038389][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5082] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 134.038389][ T112] [ 134.057671][ T111] [ 134.057671][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.057671][ T111] [ 134.068695][ T5082] [ 134.068695][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.068695][ T5082] [ 134.086863][ T5083] [ 134.086863][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.086863][ T5083] [pid 5083] newfstatat(AT_FDCWD, "./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] close(3 [pid 5082] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] <... close resumed>) = 0 [pid 5082] newfstatat(AT_FDCWD, "./30/file0", [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5251 attached ) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5251] set_robust_list(0x55557f81b660, 24 [pid 5082] <... openat resumed>) = 4 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5251 [pid 5251] <... set_robust_list resumed>) = 0 [pid 5082] newfstatat(4, "", [pid 5083] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] <... openat resumed>) = 4 [pid 5082] getdents64(4, [pid 5083] newfstatat(4, "", [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5251] chdir("./31" [pid 5082] getdents64(4, [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5083] getdents64(4, [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./30/file0" [pid 5251] <... chdir resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] getdents64(4, [pid 5082] <... rmdir resumed>) = 0 [pid 5251] <... prctl resumed>) = 0 [pid 5082] getdents64(3, [pid 5251] setpgid(0, 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5251] <... setpgid resumed>) = 0 [pid 5082] close(3 [pid 5083] close(4 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... close resumed>) = 0 [pid 5083] rmdir("./30/file0" [pid 5251] <... openat resumed>) = 3 [pid 5083] <... rmdir resumed>) = 0 [pid 5083] getdents64(3, [pid 5251] write(3, "1000", 4 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5251] <... write resumed>) = 4 [pid 5251] close(3) = 0 [pid 5083] close(3 [pid 5251] symlink("/dev/binderfs", "./binderfs" [pid 5083] <... close resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5083] rmdir("./30") = 0 [pid 5083] mkdir("./31", 0777 [pid 5251] <... symlink resumed>) = 0 [pid 5083] <... mkdir resumed>) = 0 [pid 5082] rmdir("./30" [pid 5251] memfd_create("syzkaller", 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] <... rmdir resumed>) = 0 [pid 5251] <... memfd_create resumed>) = 3 [pid 5082] mkdir("./31", 0777 [pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... openat resumed>) = 3 [pid 5082] <... mkdir resumed>) = 0 [pid 5251] <... mmap resumed>) = 0x7f5a20600000 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5249] <... write resumed>) = 16777216 [pid 5249] munmap(0x7f5a20600000, 138412032) = 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] close(4) = 0 [ 134.339623][ T5249] loop0: detected capacity change from 0 to 32768 [pid 5250] <... write resumed>) = 16777216 [pid 5249] mkdir("./file0", 0777) = 0 [pid 5249] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5250] munmap(0x7f5a20600000, 138412032) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 134.415411][ T5249] [ 134.415411][ T5249] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.415411][ T5249] [pid 5250] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5249] <... mount resumed>) = 0 [pid 5249] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5249] chdir("./file0") = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5249] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5249] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5250] close(3 [pid 5249] exit_group(0 [pid 5250] <... close resumed>) = 0 [pid 5250] close(4 [pid 5249] <... exit_group resumed>) = ? [pid 5250] <... close resumed>) = 0 [pid 5249] +++ exited with 0 +++ [pid 5250] mkdir("./file0", 0777) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=28 /* 0.28 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5250] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... restart_syscall resumed>) = 0 [ 134.459881][ T5250] loop1: detected capacity change from 0 to 32768 [pid 5079] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] <... ioctl resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5250] <... mount resumed>) = 0 [pid 5082] close(3) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] newfstatat(3, "", ./strace-static-x86_64: Process 5252 attached [pid 5250] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] set_robust_list(0x55557f81b660, 24 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5252 [pid 5252] <... set_robust_list resumed>) = 0 [pid 5079] getdents64(3, [pid 5252] chdir("./31" [pid 5250] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5252] <... chdir resumed>) = 0 [pid 5079] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./31/binderfs", [ 134.514519][ T5250] [ 134.514519][ T5250] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.514519][ T5250] [pid 5250] chdir("./file0" [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] <... chdir resumed>) = 0 [pid 5079] unlink("./31/binderfs" [pid 5252] <... prctl resumed>) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5252] setpgid(0, 0 [pid 5250] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5252] <... setpgid resumed>) = 0 [pid 5250] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] <... unlink resumed>) = 0 [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5250] <... openat resumed>) = 4 [pid 5250] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5250] exit_group(0 [pid 5083] <... ioctl resumed>) = 0 [pid 5079] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5250] <... exit_group resumed>) = ? [pid 5083] close(3 [pid 5252] <... openat resumed>) = 3 [pid 5250] +++ exited with 0 +++ [pid 5083] <... close resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=27 /* 0.27 s */} --- [pid 5080] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5252] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5253 attached [pid 5252] close(3 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5253 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] set_robust_list(0x55557f81b660, 24 [pid 5252] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] symlink("/dev/binderfs", "./binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5080] newfstatat(3, "", [pid 5253] <... set_robust_list resumed>) = 0 [pid 5252] <... symlink resumed>) = 0 [pid 5253] chdir("./31" [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5252] memfd_create("syzkaller", 0 [pid 5253] <... chdir resumed>) = 0 [pid 5252] <... memfd_create resumed>) = 3 [pid 5080] getdents64(3, [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5253] <... prctl resumed>) = 0 [pid 5252] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] setpgid(0, 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] <... setpgid resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5253] <... openat resumed>) = 3 [pid 5080] unlink("./31/binderfs" [pid 5253] write(3, "1000", 4 [pid 5080] <... unlink resumed>) = 0 [pid 5253] <... write resumed>) = 4 [pid 5080] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] close(3) = 0 [pid 5253] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5253] memfd_create("syzkaller", 0) = 3 [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 134.584352][ T62] [ 134.584352][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.584352][ T62] [ 134.618682][ T62] [ 134.618682][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.618682][ T62] [ 134.658039][ T62] [ 134.658039][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.658039][ T62] [ 134.658071][ T112] [ 134.658071][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.658071][ T112] [ 134.680715][ T62] [ 134.680715][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.680715][ T62] [ 134.697419][ T5079] [ 134.697419][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.697419][ T5079] [ 134.711009][ T5080] [ 134.711009][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.711009][ T5080] [ 134.724041][ T5079] [ 134.724041][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.724041][ T5079] [ 134.727701][ T5080] [ 134.727701][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.727701][ T5080] [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./31/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5080] rmdir("./31") = 0 [pid 5080] mkdir("./32", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 134.766796][ T112] [ 134.766796][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 134.766796][ T112] [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./31/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./31") = 0 [pid 5079] mkdir("./32", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5251] <... write resumed>) = 16777216 [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"..., 16777216 [pid 5251] munmap(0x7f5a20600000, 138412032) = 0 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5251] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5251] close(3) = 0 [pid 5251] close(4) = 0 [pid 5251] mkdir("./file0", 0777) = 0 [ 135.161932][ T5251] loop2: detected capacity change from 0 to 32768 [pid 5080] <... ioctl resumed>) = 0 [pid 5251] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5254 attached [pid 5251] <... mount resumed>) = 0 [pid 5079] close(3 [pid 5254] set_robust_list(0x55557f81b660, 24 [pid 5251] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5254 [pid 5079] <... close resumed>) = 0 [pid 5254] <... set_robust_list resumed>) = 0 [pid 5251] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5254] chdir("./32") = 0 [pid 5251] chdir("./file0"./strace-static-x86_64: Process 5255 attached [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] <... chdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5255 [pid 5255] set_robust_list(0x55557f81b660, 24 [pid 5254] <... prctl resumed>) = 0 [pid 5255] <... set_robust_list resumed>) = 0 [pid 5255] chdir("./32" [pid 5254] setpgid(0, 0 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5255] <... chdir resumed>) = 0 [pid 5254] <... setpgid resumed>) = 0 [pid 5251] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5251] openat(AT_FDCWD, ".", O_RDONLY [pid 5255] <... prctl resumed>) = 0 [pid 5251] <... openat resumed>) = 4 [pid 5255] setpgid(0, 0 [pid 5251] getdents64(4, [pid 5255] <... setpgid resumed>) = 0 [pid 5254] <... openat resumed>) = 3 [pid 5251] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5254] write(3, "1000", 4 [pid 5251] exit_group(0) = ? [pid 5254] <... write resumed>) = 4 [pid 5255] <... openat resumed>) = 3 [pid 5254] close(3 [pid 5255] write(3, "1000", 4 [pid 5254] <... close resumed>) = 0 [pid 5255] <... write resumed>) = 4 [pid 5254] symlink("/dev/binderfs", "./binderfs" [pid 5251] +++ exited with 0 +++ [pid 5255] close(3 [pid 5254] <... symlink resumed>) = 0 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=25 /* 0.25 s */} --- [ 135.250898][ T5251] [ 135.250898][ T5251] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.250898][ T5251] [pid 5255] <... close resumed>) = 0 [pid 5254] memfd_create("syzkaller", 0 [pid 5255] symlink("/dev/binderfs", "./binderfs" [pid 5254] <... memfd_create resumed>) = 3 [pid 5255] <... symlink resumed>) = 0 [pid 5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5255] memfd_create("syzkaller", 0 [pid 5254] <... mmap resumed>) = 0x7f5a20600000 [pid 5255] <... memfd_create resumed>) = 3 [pid 5081] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./31/binderfs" [pid 5255] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] <... unlink resumed>) = 0 [ 135.369186][ T1837] [ 135.369186][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.369186][ T1837] [ 135.397672][ T1837] [ 135.397672][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.397672][ T1837] [ 135.435412][ T5081] [ 135.435412][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.435412][ T5081] [ 135.458418][ T112] [ 135.458418][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.458418][ T112] [pid 5081] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5081] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./31/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./31") = 0 [pid 5081] mkdir("./32", 0777) = 0 [ 135.487211][ T5081] [ 135.487211][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.487211][ T5081] [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5252] <... write resumed>) = 16777216 [pid 5252] munmap(0x7f5a20600000, 138412032) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5252] close(3) = 0 [pid 5252] close(4) = 0 [pid 5252] mkdir("./file0", 0777 [pid 5253] <... write resumed>) = 16777216 [pid 5252] <... mkdir resumed>) = 0 [ 135.635906][ T5252] loop3: detected capacity change from 0 to 32768 [pid 5252] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5253] munmap(0x7f5a20600000, 138412032 [pid 5252] <... mount resumed>) = 0 [pid 5252] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5252] chdir("./file0") = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5252] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5252] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 135.700132][ T5252] [ 135.700132][ T5252] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.700132][ T5252] [pid 5252] exit_group(0 [pid 5253] <... munmap resumed>) = 0 [pid 5252] <... exit_group resumed>) = ? [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5253] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5252] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=29 /* 0.29 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./31/binderfs") = 0 [pid 5082] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5253] close(3) = 0 [pid 5253] close(4) = 0 [pid 5253] mkdir("./file0", 0777) = 0 [ 135.769365][ T5253] loop4: detected capacity change from 0 to 32768 [ 135.804069][ T1837] [ 135.804069][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.804069][ T1837] [pid 5253] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 135.832398][ T1837] [ 135.832398][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.832398][ T1837] [ 135.850234][ T5253] [ 135.850234][ T5253] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.850234][ T5253] [ 135.871469][ T111] [ 135.871469][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.871469][ T111] [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"..., 16777216 [pid 5253] <... mount resumed>) = 0 [pid 5253] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5253] chdir("./file0") = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5253] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5253] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5253] exit_group(0) = ? [pid 5253] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=31 /* 0.31 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./31/binderfs") = 0 [ 135.891989][ T5082] [ 135.891989][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.891989][ T5082] [ 135.917283][ T5082] [ 135.917283][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.917283][ T5082] [pid 5083] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5256 attached [pid 5082] <... umount2 resumed>) = 0 [pid 5256] set_robust_list(0x55557f81b660, 24 [pid 5082] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5256 [pid 5256] <... set_robust_list resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5256] chdir("./32" [pid 5082] newfstatat(AT_FDCWD, "./31/file0", [pid 5256] <... chdir resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5256] <... prctl resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5256] setpgid(0, 0 [pid 5082] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5256] <... setpgid resumed>) = 0 [pid 5082] <... openat resumed>) = 4 [ 135.963851][ T1837] [ 135.963851][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.963851][ T1837] [ 135.996234][ T1837] [ 135.996234][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 135.996234][ T1837] [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./31/file0" [pid 5256] <... openat resumed>) = 3 [pid 5256] write(3, "1000", 4) = 4 [pid 5082] <... rmdir resumed>) = 0 [pid 5256] close(3) = 0 [pid 5256] symlink("/dev/binderfs", "./binderfs" [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5256] <... symlink resumed>) = 0 [pid 5082] close(3) = 0 [ 136.018641][ T112] [ 136.018641][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.018641][ T112] [ 136.038386][ T5083] [ 136.038386][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.038386][ T5083] [pid 5082] rmdir("./31" [pid 5256] memfd_create("syzkaller", 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] mkdir("./32", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5256] <... memfd_create resumed>) = 3 [pid 5083] <... umount2 resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5256] <... mmap resumed>) = 0x7f5a20600000 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./31/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./31") = 0 [pid 5083] mkdir("./32", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 136.068085][ T5083] [ 136.068085][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.068085][ T5083] [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5254] <... write resumed>) = 16777216 [pid 5254] munmap(0x7f5a20600000, 138412032) = 0 [pid 5255] <... write resumed>) = 16777216 [pid 5254] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5255] munmap(0x7f5a20600000, 138412032 [pid 5254] <... openat resumed>) = 4 [pid 5254] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5254] close(3) = 0 [pid 5254] close(4) = 0 [pid 5254] mkdir("./file0", 0777 [pid 5255] <... munmap resumed>) = 0 [pid 5254] <... mkdir resumed>) = 0 [pid 5254] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 136.389193][ T5254] loop1: detected capacity change from 0 to 32768 [ 136.426658][ T5254] [ 136.426658][ T5254] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.426658][ T5254] [pid 5255] ioctl(4, LOOP_SET_FD, 3 [pid 5254] <... mount resumed>) = 0 [pid 5254] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5254] chdir("./file0") = 0 [pid 5254] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5255] <... ioctl resumed>) = 0 [pid 5255] close(3) = 0 [pid 5255] close(4) = 0 [pid 5255] mkdir("./file0", 0777) = 0 [pid 5255] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5254] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5254] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5254] exit_group(0) = ? [pid 5254] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=33 /* 0.33 s */} --- [pid 5080] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 136.441493][ T5255] loop0: detected capacity change from 0 to 32768 [pid 5080] unlink("./32/binderfs") = 0 [pid 5080] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5257 ./strace-static-x86_64: Process 5257 attached [pid 5257] set_robust_list(0x55557f81b660, 24) = 0 [pid 5257] chdir("./32") = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5257] setpgid(0, 0) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5256] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5257] <... openat resumed>) = 3 [pid 5083] close(3) = 0 [pid 5257] write(3, "1000", 4 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5257] <... write resumed>) = 4 [pid 5257] close(3) = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5258 [pid 5257] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5257] memfd_create("syzkaller", 0) = 3 [pid 5257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 ./strace-static-x86_64: Process 5258 attached [ 136.518884][ T1837] [ 136.518884][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.518884][ T1837] [ 136.541226][ T5255] [ 136.541226][ T5255] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.541226][ T5255] [ 136.551871][ T1837] [ 136.551871][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.551871][ T1837] [pid 5258] set_robust_list(0x55557f81b660, 24) = 0 [pid 5258] chdir("./32") = 0 [pid 5258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5258] setpgid(0, 0) = 0 [pid 5258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5258] write(3, "1000", 4) = 4 [pid 5258] close(3) = 0 [pid 5258] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5255] <... mount resumed>) = 0 [pid 5255] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5258] memfd_create("syzkaller", 0 [pid 5255] <... openat resumed>) = 3 [pid 5255] chdir("./file0") = 0 [pid 5258] <... memfd_create resumed>) = 3 [pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5255] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5258] <... mmap resumed>) = 0x7f5a20600000 [pid 5255] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5255] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5255] exit_group(0) = ? [ 136.591146][ T5080] [ 136.591146][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.591146][ T5080] [pid 5255] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=28 /* 0.28 s */} --- [pid 5079] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./32/binderfs") = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5079] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 136.645130][ T111] [ 136.645130][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.645130][ T111] [ 136.677892][ T5080] [ 136.677892][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.677892][ T5080] [pid 5080] newfstatat(AT_FDCWD, "./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./32/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./32") = 0 [pid 5080] mkdir("./33", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 136.717312][ T62] [ 136.717312][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.717312][ T62] [ 136.755729][ T62] [ 136.755729][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.755729][ T62] [ 136.787969][ T5079] [ 136.787969][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.787969][ T5079] [ 136.828614][ T112] [ 136.828614][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.828614][ T112] [ 136.870338][ T5079] [ 136.870338][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 136.870338][ T5079] [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./32/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./32") = 0 [pid 5079] mkdir("./33", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [pid 5256] <... write resumed>) = 16777216 [pid 5256] munmap(0x7f5a20600000, 138412032) = 0 [pid 5256] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5256] ioctl(4, LOOP_SET_FD, 3 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5259 attached , child_tidptr=0x55557f81b650) = 5259 [pid 5259] set_robust_list(0x55557f81b660, 24) = 0 [pid 5259] chdir("./33" [pid 5256] <... ioctl resumed>) = 0 [pid 5259] <... chdir resumed>) = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5256] close(3 [pid 5259] <... prctl resumed>) = 0 [pid 5259] setpgid(0, 0) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5256] <... close resumed>) = 0 [pid 5259] write(3, "1000", 4 [pid 5256] close(4 [pid 5259] <... write resumed>) = 4 [pid 5256] <... close resumed>) = 0 [pid 5256] mkdir("./file0", 0777 [pid 5259] close(3) = 0 [pid 5259] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5256] <... mkdir resumed>) = 0 [pid 5259] memfd_create("syzkaller", 0) = 3 [pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 137.139703][ T5256] loop2: detected capacity change from 0 to 32768 [pid 5256] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5256] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 137.258351][ T5256] [ 137.258351][ T5256] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.258351][ T5256] [pid 5256] chdir("./file0") = 0 [pid 5256] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5256] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5256] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5256] exit_group(0) = ? [pid 5256] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=24 /* 0.24 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./32/binderfs") = 0 [ 137.358943][ T2436] [ 137.358943][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.358943][ T2436] [ 137.387317][ T2436] [ 137.387317][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.387317][ T2436] [pid 5081] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5260 attached , child_tidptr=0x55557f81b650) = 5260 [pid 5260] set_robust_list(0x55557f81b660, 24) = 0 [pid 5260] chdir("./33") = 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 [ 137.418528][ T5081] [ 137.418528][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.418528][ T5081] [ 137.452622][ T111] [ 137.452622][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.452622][ T111] [pid 5260] write(3, "1000", 4 [pid 5257] <... write resumed>) = 16777216 [pid 5260] <... write resumed>) = 4 [pid 5260] close(3) = 0 [pid 5257] munmap(0x7f5a20600000, 138412032 [pid 5260] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5260] memfd_create("syzkaller", 0) = 3 [pid 5260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./32/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./32") = 0 [pid 5081] mkdir("./33", 0777 [pid 5257] <... munmap resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [ 137.489439][ T5081] [ 137.489439][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.489439][ T5081] [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5257] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5257] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5257] close(3) = 0 [pid 5257] close(4) = 0 [pid 5257] mkdir("./file0", 0777) = 0 [ 137.587497][ T5257] loop3: detected capacity change from 0 to 32768 [pid 5257] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5258] <... write resumed>) = 16777216 [pid 5258] munmap(0x7f5a20600000, 138412032 [pid 5259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5257] <... mount resumed>) = 0 [ 137.649782][ T5257] [ 137.649782][ T5257] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.649782][ T5257] [pid 5257] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5257] chdir("./file0") = 0 [pid 5257] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5257] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5257] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5257] exit_group(0) = ? [pid 5257] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=31 /* 0.31 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, [pid 5258] <... munmap resumed>) = 0 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./32/binderfs") = 0 [pid 5082] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5258] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5258] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5258] close(3) = 0 [pid 5258] close(4) = 0 [pid 5258] mkdir("./file0", 0777) = 0 [ 137.749684][ T62] [ 137.749684][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.749684][ T62] [ 137.750926][ T5258] loop4: detected capacity change from 0 to 32768 [ 137.779875][ T62] [ 137.779875][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.779875][ T62] [pid 5258] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5258] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5258] chdir("./file0") = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5258] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5258] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5258] exit_group(0) = ? [pid 5081] <... ioctl resumed>) = 0 [pid 5258] +++ exited with 0 +++ [ 137.842480][ T5258] [ 137.842480][ T5258] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.842480][ T5258] [ 137.855714][ T5082] [ 137.855714][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.855714][ T5082] [ 137.880447][ T112] [ 137.880447][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.880447][ T112] [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5258, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=36 /* 0.36 s */} --- [pid 5081] close(3) = 0 [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5261 attached ) = -1 EINVAL (Invalid argument) [pid 5261] set_robust_list(0x55557f81b660, 24 [pid 5083] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5261] <... set_robust_list resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5261] chdir("./33" [pid 5083] getdents64(3, [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5261 [pid 5261] <... chdir resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5261] <... prctl resumed>) = 0 [pid 5083] unlink("./32/binderfs" [pid 5261] setpgid(0, 0 [pid 5083] <... unlink resumed>) = 0 [ 137.909695][ T5082] [ 137.909695][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.909695][ T5082] [pid 5083] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... umount2 resumed>) = 0 [pid 5261] <... setpgid resumed>) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5082] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5261] write(3, "1000", 4 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5261] <... write resumed>) = 4 [pid 5082] newfstatat(AT_FDCWD, "./32/file0", [pid 5261] close(3 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5261] <... close resumed>) = 0 [pid 5082] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5261] symlink("/dev/binderfs", "./binderfs" [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5261] <... symlink resumed>) = 0 [pid 5082] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5261] memfd_create("syzkaller", 0 [pid 5082] <... openat resumed>) = 4 [pid 5261] <... memfd_create resumed>) = 3 [pid 5082] newfstatat(4, "", [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5261] <... mmap resumed>) = 0x7f5a20600000 [ 137.974830][ T62] [ 137.974830][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.974830][ T62] [ 137.997254][ T62] [ 137.997254][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 137.997254][ T62] [ 138.018000][ T5083] [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./32/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./32") = 0 [pid 5082] mkdir("./33", 0777) = 0 [pid 5260] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 138.018000][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.018000][ T5083] [ 138.042156][ T111] [ 138.042156][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.042156][ T111] [ 138.066008][ T5083] [ 138.066008][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 138.066008][ T5083] [pid 5083] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./32/file0") = 0 [pid 5083] getdents64(3, [pid 5259] <... write resumed>) = 16777216 [pid 5259] munmap(0x7f5a20600000, 138412032 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./32") = 0 [pid 5083] mkdir("./33", 0777 [pid 5259] <... munmap resumed>) = 0 [pid 5083] <... mkdir resumed>) = 0 [pid 5259] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5259] <... openat resumed>) = 4 [pid 5083] <... openat resumed>) = 3 [pid 5259] ioctl(4, LOOP_SET_FD, 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5259] <... ioctl resumed>) = 0 [pid 5259] close(3) = 0 [pid 5259] close(4) = 0 [pid 5259] mkdir("./file0", 0777) = 0 [ 138.232950][ T5259] loop1: detected capacity change from 0 to 32768 [pid 5259] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5259] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5259] chdir("./file0") = 0 [pid 5259] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5259] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5259] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 138.285067][ T5259] [ 138.285067][ T5259] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.285067][ T5259] [pid 5259] exit_group(0) = ? [pid 5259] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=26 /* 0.26 s */} --- [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"..., 16777216 [pid 5080] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./33/binderfs") = 0 [pid 5080] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5262 attached , child_tidptr=0x55557f81b650) = 5262 [pid 5262] set_robust_list(0x55557f81b660, 24) = 0 [pid 5262] chdir("./33") = 0 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5262] setpgid(0, 0) = 0 [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5262] write(3, "1000", 4) = 4 [pid 5262] close(3) = 0 [pid 5262] symlink("/dev/binderfs", "./binderfs") = 0 [ 138.443965][ T62] [ 138.443965][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.443965][ T62] [ 138.477997][ T62] [ 138.477997][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.477997][ T62] [pid 5262] memfd_create("syzkaller", 0) = 3 [pid 5262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5260] <... write resumed>) = 16777216 [ 138.527489][ T5080] [ 138.527489][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.527489][ T5080] [ 138.548228][ T5080] [ 138.548228][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.548228][ T5080] [pid 5260] munmap(0x7f5a20600000, 138412032 [pid 5083] <... ioctl resumed>) = 0 [pid 5260] <... munmap resumed>) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] close(3 [pid 5260] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 138.581957][ T112] [ 138.581957][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.581957][ T112] [pid 5080] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5260] <... openat resumed>) = 4 [pid 5083] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5260] ioctl(4, LOOP_SET_FD, 3 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... openat resumed>) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./33/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./33") = 0 [pid 5080] mkdir("./34", 0777./strace-static-x86_64: Process 5263 attached [pid 5260] <... ioctl resumed>) = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5263 [pid 5263] set_robust_list(0x55557f81b660, 24) = 0 [pid 5263] chdir("./33" [pid 5260] close(3 [pid 5263] <... chdir resumed>) = 0 [pid 5260] <... close resumed>) = 0 [pid 5260] close(4 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5260] <... close resumed>) = 0 [pid 5263] <... prctl resumed>) = 0 [pid 5263] setpgid(0, 0 [pid 5260] mkdir("./file0", 0777 [pid 5080] <... mkdir resumed>) = 0 [pid 5263] <... setpgid resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5260] <... mkdir resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5263] <... openat resumed>) = 3 [pid 5260] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5263] write(3, "1000", 4) = 4 [pid 5263] close(3) = 0 [pid 5263] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5263] memfd_create("syzkaller", 0) = 3 [pid 5263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5260] <... mount resumed>) = 0 [pid 5260] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5260] chdir("./file0") = 0 [ 138.667642][ T5260] loop0: detected capacity change from 0 to 32768 [ 138.690819][ T5260] [ 138.690819][ T5260] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.690819][ T5260] [pid 5260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5260] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5260] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5260] exit_group(0) = ? [pid 5260] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=31 /* 0.31 s */} --- [pid 5079] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./33/binderfs") = 0 [pid 5079] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5261] <... write resumed>) = 16777216 [pid 5261] munmap(0x7f5a20600000, 138412032) = 0 [ 138.780631][ T11] [ 138.780631][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.780631][ T11] [ 138.809833][ T11] [ 138.809833][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.809833][ T11] [pid 5261] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5261] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5261] close(3) = 0 [pid 5261] close(4) = 0 [pid 5261] mkdir("./file0", 0777) = 0 [ 138.849593][ T111] [ 138.849593][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.849593][ T111] [ 138.862169][ T5261] loop2: detected capacity change from 0 to 32768 [ 138.865432][ T5079] [ 138.865432][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.865432][ T5079] [ 138.902481][ T5079] [ 138.902481][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.902481][ T5079] [pid 5261] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] newfstatat(AT_FDCWD, "./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5261] <... mount resumed>) = 0 [pid 5261] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5261] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5261] chdir("./file0" [pid 5079] newfstatat(4, "", [pid 5261] <... chdir resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5261] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] getdents64(4, [pid 5261] <... openat resumed>) = 4 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5261] getdents64(4, [pid 5079] getdents64(4, [pid 5261] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5261] exit_group(0 [pid 5079] close(4 [pid 5261] <... exit_group resumed>) = ? [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./33/file0") = 0 [pid 5261] +++ exited with 0 +++ [pid 5079] getdents64(3, [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 138.969761][ T5261] [ 138.969761][ T5261] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 138.969761][ T5261] [pid 5079] close(3 [pid 5081] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./33" [pid 5081] <... openat resumed>) = 3 [pid 5081] newfstatat(3, "", [pid 5079] <... rmdir resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] mkdir("./34", 0777 [pid 5081] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./33/binderfs", [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./33/binderfs") = 0 [ 139.039322][ T62] [ 139.039322][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.039322][ T62] [ 139.074701][ T62] [ 139.074701][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.074701][ T62] [pid 5081] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5264 attached [pid 5264] set_robust_list(0x55557f81b660, 24 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5264 [pid 5264] <... set_robust_list resumed>) = 0 [ 139.107414][ T5081] [ 139.107414][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.107414][ T5081] [ 139.137952][ T5081] [ 139.137952][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.137952][ T5081] [pid 5264] chdir("./34" [pid 5263] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5264] <... chdir resumed>) = 0 [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5264] setpgid(0, 0) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5264] write(3, "1000", 4 [pid 5081] <... umount2 resumed>) = 0 [pid 5264] <... write resumed>) = 4 [pid 5264] close(3) = 0 [pid 5081] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5264] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 139.167007][ T111] [ 139.167007][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.167007][ T111] [pid 5081] newfstatat(AT_FDCWD, "./33/file0", [pid 5264] <... symlink resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5264] memfd_create("syzkaller", 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] <... memfd_create resumed>) = 3 [pid 5081] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] <... openat resumed>) = 4 [pid 5264] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./33/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./33") = 0 [pid 5081] mkdir("./34", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5265 attached , child_tidptr=0x55557f81b650) = 5265 [pid 5265] set_robust_list(0x55557f81b660, 24) = 0 [pid 5265] chdir("./34") = 0 [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5265] setpgid(0, 0) = 0 [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5265] write(3, "1000", 4) = 4 [pid 5265] close(3) = 0 [pid 5265] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5265] memfd_create("syzkaller", 0) = 3 [pid 5265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5262] <... write resumed>) = 16777216 [pid 5262] munmap(0x7f5a20600000, 138412032) = 0 [pid 5262] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5262] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5262] close(3) = 0 [pid 5262] close(4) = 0 [pid 5262] mkdir("./file0", 0777) = 0 [ 139.524479][ T5262] loop3: detected capacity change from 0 to 32768 [pid 5262] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5262] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5262] chdir("./file0") = 0 [pid 5262] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 139.597805][ T5262] [ 139.597805][ T5262] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.597805][ T5262] [pid 5262] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5262] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5262] exit_group(0) = ? [pid 5262] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=37 /* 0.37 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./33/binderfs") = 0 [pid 5082] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5263] <... write resumed>) = 16777216 [ 139.698552][ T62] [ 139.698552][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.698552][ T62] [ 139.729413][ T62] [ 139.729413][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.729413][ T62] [pid 5263] munmap(0x7f5a20600000, 138412032 [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [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"..., 16777216 [pid 5263] <... munmap resumed>) = 0 [pid 5263] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5263] <... openat resumed>) = 4 [ 139.758590][ T112] [ 139.758590][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.758590][ T112] [ 139.777504][ T5082] [ 139.777504][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.777504][ T5082] [ 139.790388][ T5082] [ 139.790388][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.790388][ T5082] [pid 5263] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./33/file0", ./strace-static-x86_64: Process 5266 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5266 [pid 5266] set_robust_list(0x55557f81b660, 24 [pid 5082] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5266] <... set_robust_list resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5266] chdir("./34" [pid 5082] <... openat resumed>) = 4 [pid 5266] <... chdir resumed>) = 0 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5263] <... ioctl resumed>) = 0 [pid 5082] getdents64(4, [pid 5266] <... prctl resumed>) = 0 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5263] close(3 [pid 5266] setpgid(0, 0 [pid 5082] close(4 [pid 5266] <... setpgid resumed>) = 0 [pid 5263] <... close resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5263] close(4 [pid 5082] rmdir("./33/file0" [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5263] <... close resumed>) = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5266] <... openat resumed>) = 3 [pid 5263] mkdir("./file0", 0777) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./33" [pid 5266] write(3, "1000", 4) = 4 [pid 5266] close(3) = 0 [pid 5263] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... rmdir resumed>) = 0 [pid 5266] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] mkdir("./34", 0777 [pid 5266] memfd_create("syzkaller", 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5266] <... memfd_create resumed>) = 3 [pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 139.821357][ T5263] loop4: detected capacity change from 0 to 32768 [pid 5263] <... mount resumed>) = 0 [pid 5263] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5263] chdir("./file0") = 0 [pid 5263] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5263] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5263] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5263] exit_group(0) = ? [pid 5263] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=28 /* 0.28 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 139.875517][ T5263] [ 139.875517][ T5263] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.875517][ T5263] [pid 5083] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./33/binderfs") = 0 [ 139.944389][ T2436] [ 139.944389][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.944389][ T2436] [ 139.969950][ T2436] [ 139.969950][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 139.969950][ T2436] [ 140.009067][ T111] [ 140.009067][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.009067][ T111] [ 140.034973][ T5083] [ 140.034973][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.034973][ T5083] [pid 5083] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5083] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./33/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./33") = 0 [pid 5083] mkdir("./34", 0777) = 0 [ 140.060050][ T5083] [ 140.060050][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.060050][ T5083] [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] <... ioctl resumed>) = 0 [pid 5266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5265] <... write resumed>) = 16777216 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5267 ./strace-static-x86_64: Process 5267 attached [pid 5267] set_robust_list(0x55557f81b660, 24) = 0 [pid 5267] chdir("./34" [pid 5265] munmap(0x7f5a20600000, 138412032 [pid 5264] <... write resumed>) = 16777216 [pid 5267] <... chdir resumed>) = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5267] setpgid(0, 0) = 0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5267] write(3, "1000", 4) = 4 [pid 5267] close(3) = 0 [pid 5267] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5267] memfd_create("syzkaller", 0) = 3 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5264] munmap(0x7f5a20600000, 138412032) = 0 [pid 5265] <... munmap resumed>) = 0 [pid 5264] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5265] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5264] <... openat resumed>) = 4 [pid 5265] ioctl(4, LOOP_SET_FD, 3 [pid 5264] ioctl(4, LOOP_SET_FD, 3 [pid 5265] <... ioctl resumed>) = 0 [pid 5264] <... ioctl resumed>) = 0 [pid 5265] close(3 [pid 5264] close(3 [pid 5265] <... close resumed>) = 0 [pid 5264] <... close resumed>) = 0 [pid 5265] close(4 [pid 5264] close(4 [pid 5265] <... close resumed>) = 0 [pid 5264] <... close resumed>) = 0 [pid 5265] mkdir("./file0", 0777 [pid 5264] mkdir("./file0", 0777 [pid 5265] <... mkdir resumed>) = 0 [pid 5264] <... mkdir resumed>) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5265] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5264] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] close(3) = 0 [ 140.424144][ T5265] loop0: detected capacity change from 0 to 32768 [ 140.431171][ T5264] loop1: detected capacity change from 0 to 32768 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5268 attached [pid 5268] set_robust_list(0x55557f81b660, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5268 [pid 5268] <... set_robust_list resumed>) = 0 [pid 5268] chdir("./34" [pid 5264] <... mount resumed>) = 0 [pid 5268] <... chdir resumed>) = 0 [pid 5265] <... mount resumed>) = 0 [pid 5268] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5264] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5268] <... prctl resumed>) = 0 [pid 5265] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5268] setpgid(0, 0 [pid 5265] <... openat resumed>) = 3 [pid 5264] <... openat resumed>) = 3 [pid 5268] <... setpgid resumed>) = 0 [pid 5265] chdir("./file0" [pid 5264] chdir("./file0" [pid 5268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5265] <... chdir resumed>) = 0 [pid 5264] <... chdir resumed>) = 0 [pid 5268] <... openat resumed>) = 3 [pid 5265] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5264] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5265] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5264] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5265] openat(AT_FDCWD, ".", O_RDONLY [pid 5264] openat(AT_FDCWD, ".", O_RDONLY [pid 5268] write(3, "1000", 4 [pid 5265] <... openat resumed>) = 4 [pid 5264] <... openat resumed>) = 4 [pid 5268] <... write resumed>) = 4 [pid 5265] getdents64(4, [pid 5264] getdents64(4, [pid 5265] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5264] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5264] exit_group(0 [pid 5265] exit_group(0 [pid 5264] <... exit_group resumed>) = ? [pid 5265] <... exit_group resumed>) = ? [pid 5264] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=26 /* 0.26 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5265] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=32 /* 0.32 s */} --- [pid 5268] close(3 [pid 5080] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5268] <... close resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5268] symlink("/dev/binderfs", "./binderfs" [pid 5080] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5268] <... symlink resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [ 140.485960][ T5264] [ 140.485960][ T5264] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.485960][ T5264] [ 140.501013][ T5265] [ 140.501013][ T5265] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.501013][ T5265] [pid 5268] memfd_create("syzkaller", 0 [pid 5079] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5268] <... memfd_create resumed>) = 3 [pid 5080] newfstatat(3, "", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] getdents64(3, [pid 5079] <... openat resumed>) = 3 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] newfstatat(3, "", [pid 5080] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5080] newfstatat(AT_FDCWD, "./34/binderfs", [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] unlink("./34/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5268] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] <... unlink resumed>) = 0 [pid 5079] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./34/binderfs") = 0 [pid 5079] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 140.588004][ T11] [ 140.588004][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.588004][ T11] [ 140.607105][ T11] [ 140.607105][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.607105][ T11] [ 140.625241][ T2436] [ 140.625241][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.625241][ T2436] [ 140.638823][ T5079] [ 140.638823][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.638823][ T5079] [ 140.660586][ T2436] [ 140.660586][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.660586][ T2436] [ 140.685237][ T112] [ 140.685237][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.685237][ T112] [ 140.687692][ T5080] [ 140.687692][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.687692][ T5080] [ 140.708132][ T111] [ 140.708132][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.708132][ T111] [ 140.720772][ T5080] [ 140.720772][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.720772][ T5080] [ 140.731457][ T5079] [pid 5080] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5079] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] close(4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./34/file0", [pid 5079] rmdir("./34/file0" [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5080] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [ 140.731457][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 140.731457][ T5079] [pid 5080] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3) = 0 [pid 5079] rmdir("./34") = 0 [pid 5079] mkdir("./35", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5080] <... openat resumed>) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./34/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./34") = 0 [pid 5080] mkdir("./35", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [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"..., 16777216 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5266] <... write resumed>) = 16777216 [pid 5266] munmap(0x7f5a20600000, 138412032 [pid 5268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5266] <... munmap resumed>) = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5266] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5266] close(3) = 0 [pid 5266] close(4) = 0 [pid 5266] mkdir("./file0", 0777) = 0 [ 141.031980][ T5266] loop2: detected capacity change from 0 to 32768 [pid 5266] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5266] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5266] chdir("./file0") = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5266] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 141.076911][ T5266] [ 141.076911][ T5266] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.076911][ T5266] [pid 5266] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5266] exit_group(0) = ? [pid 5266] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=31 /* 0.31 s */} --- [pid 5081] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./34/binderfs") = 0 [ 141.160178][ T62] [ 141.160178][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.160178][ T62] [ 141.183320][ T62] [ 141.183320][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.183320][ T62] [ 141.215250][ T112] [ 141.215250][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.215250][ T112] [ 141.234720][ T5081] [ 141.234720][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.234720][ T5081] [pid 5081] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5269 attached [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5269 ./strace-static-x86_64: Process 5270 attached [pid 5269] set_robust_list(0x55557f81b660, 24 [pid 5270] set_robust_list(0x55557f81b660, 24 [pid 5269] <... set_robust_list resumed>) = 0 [pid 5270] <... set_robust_list resumed>) = 0 [pid 5269] chdir("./35" [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5270 [pid 5270] chdir("./35" [pid 5269] <... chdir resumed>) = 0 [pid 5270] <... chdir resumed>) = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5270] setpgid(0, 0) = 0 [pid 5270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5269] setpgid(0, 0) = 0 [pid 5270] <... openat resumed>) = 3 [pid 5270] write(3, "1000", 4 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5270] <... write resumed>) = 4 [pid 5267] <... write resumed>) = 16777216 [pid 5270] close(3 [pid 5269] <... openat resumed>) = 3 [pid 5267] munmap(0x7f5a20600000, 138412032 [pid 5270] <... close resumed>) = 0 [pid 5270] symlink("/dev/binderfs", "./binderfs" [pid 5269] write(3, "1000", 4 [pid 5270] <... symlink resumed>) = 0 [pid 5269] <... write resumed>) = 4 [pid 5270] memfd_create("syzkaller", 0 [pid 5269] close(3 [pid 5081] <... umount2 resumed>) = 0 [ 141.267350][ T5081] [ 141.267350][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.267350][ T5081] [pid 5270] <... memfd_create resumed>) = 3 [pid 5269] <... close resumed>) = 0 [pid 5081] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5269] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5270] <... mmap resumed>) = 0x7f5a20600000 [pid 5269] <... symlink resumed>) = 0 [pid 5269] memfd_create("syzkaller", 0 [pid 5081] newfstatat(AT_FDCWD, "./34/file0", [pid 5269] <... memfd_create resumed>) = 3 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5267] <... munmap resumed>) = 0 [pid 5081] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5269] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5267] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5267] <... openat resumed>) = 4 [pid 5267] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5267] <... ioctl resumed>) = 0 [pid 5081] getdents64(4, [pid 5267] close(3 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5267] <... close resumed>) = 0 [pid 5081] close(4 [pid 5267] close(4 [pid 5081] <... close resumed>) = 0 [pid 5267] <... close resumed>) = 0 [pid 5081] rmdir("./34/file0" [pid 5267] mkdir("./file0", 0777) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5267] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./34") = 0 [pid 5081] mkdir("./35", 0777) = 0 [ 141.369248][ T5267] loop3: detected capacity change from 0 to 32768 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5267] <... mount resumed>) = 0 [pid 5267] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5267] chdir("./file0") = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5267] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5267] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5267] exit_group(0) = ? [pid 5267] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=25 /* 0.25 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5082] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./34/binderfs") = 0 [ 141.425543][ T5267] [ 141.425543][ T5267] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.425543][ T5267] [ 141.496145][ T11] [ 141.496145][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.496145][ T11] [ 141.529846][ T11] [ 141.529846][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.529846][ T11] [ 141.564040][ T111] [ 141.564040][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.564040][ T111] [ 141.580979][ T5082] [ 141.580979][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.580979][ T5082] [ 141.607081][ T5082] [pid 5082] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5268] <... write resumed>) = 16777216 [pid 5268] munmap(0x7f5a20600000, 138412032 [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 141.607081][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.607081][ T5082] [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./34/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./34") = 0 [pid 5082] mkdir("./35", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5268] <... munmap resumed>) = 0 [pid 5268] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5268] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5268] close(3) = 0 [pid 5268] close(4) = 0 [pid 5268] mkdir("./file0", 0777) = 0 [ 141.713203][ T5268] loop4: detected capacity change from 0 to 32768 [pid 5268] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [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"..., 16777216 [pid 5269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5268] <... mount resumed>) = 0 [pid 5268] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 141.776981][ T5268] [ 141.776981][ T5268] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.776981][ T5268] [pid 5268] chdir("./file0") = 0 [pid 5268] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5268] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5268] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5268] exit_group(0) = ? [pid 5268] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5268, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=35 /* 0.35 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./34/binderfs") = 0 [pid 5083] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5271 [ 141.882660][ T11] [ 141.882660][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.882660][ T11] [ 141.898323][ T11] [ 141.898323][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.898323][ T11] ./strace-static-x86_64: Process 5271 attached [pid 5271] set_robust_list(0x55557f81b660, 24) = 0 [pid 5271] chdir("./35") = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5271] setpgid(0, 0) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5271] write(3, "1000", 4) = 4 [pid 5271] close(3) = 0 [pid 5271] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5271] memfd_create("syzkaller", 0) = 3 [pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 141.931361][ T112] [ 141.931361][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.931361][ T112] [ 141.958123][ T5083] [ 141.958123][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.958123][ T5083] [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 141.982211][ T5083] [ 141.982211][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 141.982211][ T5083] [pid 5083] newfstatat(AT_FDCWD, "./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./34/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./34") = 0 [pid 5083] mkdir("./35", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5272 attached , child_tidptr=0x55557f81b650) = 5272 [pid 5272] set_robust_list(0x55557f81b660, 24) = 0 [pid 5272] chdir("./35") = 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] memfd_create("syzkaller", 0) = 3 [pid 5272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5270] <... write resumed>) = 16777216 [pid 5271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5270] munmap(0x7f5a20600000, 138412032 [pid 5269] <... write resumed>) = 16777216 [pid 5269] munmap(0x7f5a20600000, 138412032 [pid 5270] <... munmap resumed>) = 0 [pid 5269] <... munmap resumed>) = 0 [pid 5270] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5270] ioctl(4, LOOP_SET_FD, 3 [pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5269] ioctl(4, LOOP_SET_FD, 3 [pid 5270] <... ioctl resumed>) = 0 [pid 5270] close(3) = 0 [pid 5270] close(4) = 0 [pid 5270] mkdir("./file0", 0777 [pid 5269] <... ioctl resumed>) = 0 [pid 5270] <... mkdir resumed>) = 0 [pid 5269] close(3 [pid 5270] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5269] <... close resumed>) = 0 [pid 5269] close(4) = 0 [pid 5269] mkdir("./file0", 0777) = 0 [ 142.411404][ T5270] loop1: detected capacity change from 0 to 32768 [ 142.420613][ T5269] loop0: detected capacity change from 0 to 32768 [pid 5269] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] <... ioctl resumed>) = 0 [pid 5269] <... mount resumed>) = 0 [pid 5083] close(3) = 0 [pid 5269] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5270] <... mount resumed>) = 0 [pid 5269] <... openat resumed>) = 3 [pid 5270] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 142.473140][ T5269] [ 142.473140][ T5269] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.473140][ T5269] [ 142.498058][ T5270] [ 142.498058][ T5270] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.498058][ T5270] [pid 5270] chdir("./file0") = 0 [pid 5269] chdir("./file0" [pid 5270] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5269] <... chdir resumed>) = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5273 [pid 5270] openat(AT_FDCWD, ".", O_RDONLY [pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5270] <... openat resumed>) = 4 [pid 5270] getdents64(4, [pid 5269] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5270] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5269] openat(AT_FDCWD, ".", O_RDONLY./strace-static-x86_64: Process 5273 attached [pid 5270] exit_group(0 [pid 5269] <... openat resumed>) = 4 [pid 5273] set_robust_list(0x55557f81b660, 24 [pid 5270] <... exit_group resumed>) = ? [pid 5270] +++ exited with 0 +++ [pid 5273] <... set_robust_list resumed>) = 0 [pid 5269] getdents64(4, [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5270, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=33 /* 0.33 s */} --- [pid 5273] chdir("./35" [pid 5269] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5273] <... chdir resumed>) = 0 [pid 5269] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5269] <... exit_group resumed>) = ? [pid 5080] <... openat resumed>) = 3 [pid 5273] <... prctl resumed>) = 0 [pid 5269] +++ exited with 0 +++ [pid 5080] newfstatat(3, "", [pid 5273] setpgid(0, 0) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- [pid 5080] getdents64(3, [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5273] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5273] write(3, "1000", 4 [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5273] <... write resumed>) = 4 [pid 5080] unlink("./35/binderfs" [pid 5273] close(3 [pid 5079] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5273] <... close resumed>) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5273] symlink("/dev/binderfs", "./binderfs" [pid 5080] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] newfstatat(3, "", [pid 5273] <... symlink resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./35/binderfs") = 0 [pid 5079] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5272] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 142.593195][ T11] [ 142.593195][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.593195][ T11] [ 142.604244][ T1837] [ 142.604244][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.604244][ T1837] [ 142.620980][ T11] [ 142.620980][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.620980][ T11] [ 142.620980][ T1837] [ 142.620980][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.620980][ T1837] [pid 5273] memfd_create("syzkaller", 0) = 3 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 142.621483][ T111] [ 142.621483][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.621483][ T111] [ 142.638655][ T5080] [ 142.638655][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.638655][ T5080] [ 142.663329][ T5079] [ 142.663329][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.663329][ T5079] [ 142.688410][ T5079] [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./35/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [ 142.688410][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.688410][ T5079] [ 142.699655][ T112] [ 142.699655][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.699655][ T112] [ 142.715500][ T5080] [ 142.715500][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.715500][ T5080] [pid 5079] rmdir("./35" [pid 5080] <... umount2 resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5080] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", [pid 5079] mkdir("./36", 0777 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5080] close(4) = 0 [pid 5080] rmdir("./35/file0") = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./35") = 0 [pid 5080] mkdir("./36", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5271] <... write resumed>) = 16777216 [pid 5271] munmap(0x7f5a20600000, 138412032) = 0 [pid 5271] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5271] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5271] close(3) = 0 [pid 5271] close(4) = 0 [pid 5271] mkdir("./file0", 0777) = 0 [ 142.881765][ T5271] loop2: detected capacity change from 0 to 32768 [pid 5271] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5271] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5271] chdir("./file0") = 0 [pid 5271] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5271] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5271] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5271] exit_group(0) = ? [pid 5271] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 142.977558][ T5271] [ 142.977558][ T5271] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 142.977558][ T5271] [pid 5081] newfstatat(3, "", [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"..., 16777216 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./35/binderfs") = 0 [ 143.069068][ T11] [ 143.069068][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.069068][ T11] [ 143.099200][ T11] [ 143.099200][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.099200][ T11] [pid 5081] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5272] <... write resumed>) = 16777216 [ 143.133831][ T5081] [ 143.133831][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.133831][ T5081] [ 143.157671][ T112] [ 143.157671][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.157671][ T112] [pid 5272] munmap(0x7f5a20600000, 138412032) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5272] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... umount2 resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5079] close(3 [pid 5272] <... openat resumed>) = 4 [pid 5081] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] close(3 [pid 5079] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5274 attached [pid 5272] ioctl(4, LOOP_SET_FD, 3 [pid 5081] newfstatat(AT_FDCWD, "./35/file0", [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5274] set_robust_list(0x55557f81b660, 24 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5274 [pid 5274] <... set_robust_list resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5274] chdir("./36" [pid 5081] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5274] <... chdir resumed>) = 0 [pid 5081] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5275 attached [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5275] set_robust_list(0x55557f81b660, 24 [pid 5274] <... prctl resumed>) = 0 [pid 5081] newfstatat(4, "", [pid 5275] <... set_robust_list resumed>) = 0 [pid 5274] setpgid(0, 0 [pid 5272] <... ioctl resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5275 [pid 5275] chdir("./36" [pid 5274] <... setpgid resumed>) = 0 [pid 5272] close(3 [pid 5081] getdents64(4, [pid 5275] <... chdir resumed>) = 0 [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5272] <... close resumed>) = 0 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5274] <... openat resumed>) = 3 [pid 5272] close(4 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5275] <... prctl resumed>) = 0 [pid 5274] write(3, "1000", 4 [pid 5272] <... close resumed>) = 0 [pid 5081] getdents64(4, [pid 5274] <... write resumed>) = 4 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5275] setpgid(0, 0 [pid 5274] close(3 [pid 5272] mkdir("./file0", 0777 [pid 5275] <... setpgid resumed>) = 0 [pid 5274] <... close resumed>) = 0 [pid 5081] close(4 [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5274] symlink("/dev/binderfs", "./binderfs" [pid 5272] <... mkdir resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5274] <... symlink resumed>) = 0 [pid 5272] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5274] memfd_create("syzkaller", 0 [pid 5081] rmdir("./35/file0" [pid 5275] <... openat resumed>) = 3 [pid 5275] write(3, "1000", 4) = 4 [pid 5274] <... memfd_create resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5275] close(3) = 0 [pid 5274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] getdents64(3, [pid 5275] symlink("/dev/binderfs", "./binderfs" [pid 5274] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5275] <... symlink resumed>) = 0 [pid 5081] close(3) = 0 [ 143.187229][ T5081] [ 143.187229][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.187229][ T5081] [ 143.217568][ T5272] loop3: detected capacity change from 0 to 32768 [pid 5275] memfd_create("syzkaller", 0 [pid 5081] rmdir("./35" [pid 5275] <... memfd_create resumed>) = 3 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] mkdir("./36", 0777 [pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5275] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] <... openat resumed>) = 3 [ 143.289137][ T5272] [ 143.289137][ T5272] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.289137][ T5272] [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5272] <... mount resumed>) = 0 [pid 5272] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5272] chdir("./file0") = 0 [pid 5272] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5272] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5272] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5272] exit_group(0) = ? [pid 5272] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=30 /* 0.30 s */} --- [pid 5082] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./35/binderfs") = 0 [ 143.448249][ T1837] [ 143.448249][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.448249][ T1837] [ 143.487343][ T1837] [ 143.487343][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.487343][ T1837] [ 143.509047][ T5082] [ 143.509047][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.509047][ T5082] [ 143.541946][ T112] [ 143.541946][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.541946][ T112] [pid 5082] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5082] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 143.577222][ T5082] [ 143.577222][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.577222][ T5082] [pid 5273] <... write resumed>) = 16777216 [pid 5082] newfstatat(AT_FDCWD, "./35/file0", [pid 5273] munmap(0x7f5a20600000, 138412032 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5273] <... munmap resumed>) = 0 [pid 5082] rmdir("./35/file0") = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5273] <... openat resumed>) = 4 [pid 5082] close(3 [pid 5273] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./35") = 0 [pid 5082] mkdir("./36", 0777 [pid 5273] <... ioctl resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5273] close(3) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5274] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5273] close(4 [pid 5081] <... ioctl resumed>) = 0 [pid 5273] <... close resumed>) = 0 [pid 5081] close(3 [pid 5273] mkdir("./file0", 0777 [pid 5081] <... close resumed>) = 0 [ 143.721215][ T5273] loop4: detected capacity change from 0 to 32768 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5273] <... mkdir resumed>) = 0 [pid 5273] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5276 ./strace-static-x86_64: Process 5276 attached [pid 5276] set_robust_list(0x55557f81b660, 24) = 0 [pid 5276] chdir("./36") = 0 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5276] setpgid(0, 0) = 0 [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5276] write(3, "1000", 4) = 4 [pid 5276] close(3) = 0 [pid 5276] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5276] memfd_create("syzkaller", 0) = 3 [pid 5276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 143.867217][ T5273] [ 143.867217][ T5273] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.867217][ T5273] [pid 5273] <... mount resumed>) = 0 [pid 5273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5273] chdir("./file0") = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5273] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5273] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5273] exit_group(0) = ? [pid 5273] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=35 /* 0.35 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./35/binderfs") = 0 [ 143.997530][ T1837] [ 143.997530][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 143.997530][ T1837] [ 144.027222][ T1837] [ 144.027222][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.027222][ T1837] [ 144.073842][ T5083] [ 144.073842][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.073842][ T5083] [ 144.108126][ T5083] [ 144.108126][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.108126][ T5083] [pid 5083] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5083] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./35/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [ 144.138846][ T112] [ 144.138846][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.138846][ T112] [pid 5083] rmdir("./35") = 0 [pid 5083] mkdir("./36", 0777) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5277 attached [pid 5277] set_robust_list(0x55557f81b660, 24) = 0 [pid 5277] chdir("./36") = 0 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5277] setpgid(0, 0) = 0 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5277] write(3, "1000", 4) = 4 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5277 [pid 5277] close(3 [pid 5275] <... write resumed>) = 16777216 [pid 5277] <... close resumed>) = 0 [pid 5277] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5277] memfd_create("syzkaller", 0) = 3 [pid 5277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5275] munmap(0x7f5a20600000, 138412032) = 0 [pid 5274] <... write resumed>) = 16777216 [pid 5275] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5274] munmap(0x7f5a20600000, 138412032 [pid 5275] ioctl(4, LOOP_SET_FD, 3 [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"..., 16777216 [pid 5275] <... ioctl resumed>) = 0 [pid 5275] close(3 [pid 5274] <... munmap resumed>) = 0 [pid 5275] <... close resumed>) = 0 [pid 5275] close(4 [pid 5274] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5275] <... close resumed>) = 0 [pid 5275] mkdir("./file0", 0777 [pid 5274] <... openat resumed>) = 4 [pid 5275] <... mkdir resumed>) = 0 [ 144.388088][ T5275] loop1: detected capacity change from 0 to 32768 [pid 5274] ioctl(4, LOOP_SET_FD, 3 [pid 5275] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5274] <... ioctl resumed>) = 0 [pid 5274] close(3) = 0 [pid 5274] close(4) = 0 [pid 5274] mkdir("./file0", 0777) = 0 [ 144.442588][ T5274] loop0: detected capacity change from 0 to 32768 [pid 5274] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5274] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5274] chdir("./file0") = 0 [pid 5274] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 144.492896][ T5274] [ 144.492896][ T5274] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.492896][ T5274] [ 144.505186][ T5275] [ 144.505186][ T5275] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.505186][ T5275] [pid 5274] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5274] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5274] exit_group(0) = ? [pid 5274] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=35 /* 0.35 s */} --- [pid 5275] <... mount resumed>) = 0 [pid 5079] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5275] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5275] <... openat resumed>) = 3 [pid 5275] chdir("./file0" [pid 5079] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5275] <... chdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5275] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] newfstatat(3, "", [pid 5275] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5275] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5079] getdents64(3, [pid 5275] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5275] exit_group(0 [pid 5079] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5275] <... exit_group resumed>) = ? [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5275] +++ exited with 0 +++ [pid 5079] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=22 /* 0.22 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5079] unlink("./36/binderfs" [pid 5080] <... restart_syscall resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5079] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./36/binderfs") = 0 [ 144.601705][ T11] [ 144.601705][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.601705][ T11] [ 144.638038][ T11] [ 144.638038][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.638038][ T11] [ 144.639833][ T1837] [pid 5080] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... ioctl resumed>) = 0 [ 144.639833][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.639833][ T1837] [ 144.687831][ T111] [ 144.687831][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.687831][ T111] [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5278 attached [pid 5278] set_robust_list(0x55557f81b660, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5278 [pid 5278] <... set_robust_list resumed>) = 0 [pid 5278] chdir("./36") = 0 [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 [ 144.707772][ T1837] [ 144.707772][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.707772][ T1837] [ 144.718860][ T5079] [ 144.718860][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.718860][ T5079] [ 144.739524][ T5079] [ 144.739524][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.739524][ T5079] [pid 5278] close(3) = 0 [pid 5278] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5278] memfd_create("syzkaller", 0) = 3 [pid 5278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./36/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./36") = 0 [pid 5079] mkdir("./37", 0777) = 0 [pid 5277] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 144.778821][ T5080] [ 144.778821][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.778821][ T5080] [ 144.790575][ T112] [ 144.790575][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.790575][ T112] [ 144.814488][ T5080] [ 144.814488][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 144.814488][ T5080] [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./36/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./36" [pid 5276] <... write resumed>) = 16777216 [pid 5080] <... rmdir resumed>) = 0 [pid 5080] mkdir("./37", 0777 [pid 5276] munmap(0x7f5a20600000, 138412032 [pid 5080] <... mkdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5276] <... munmap resumed>) = 0 [pid 5276] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5276] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5276] close(3) = 0 [ 145.067427][ T5276] loop2: detected capacity change from 0 to 32768 [pid 5276] close(4) = 0 [pid 5276] mkdir("./file0", 0777) = 0 [pid 5276] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5276] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5276] chdir("./file0") = 0 [pid 5276] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5276] openat(AT_FDCWD, ".", O_RDONLY [pid 5278] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5276] <... openat resumed>) = 4 [ 145.168009][ T5276] [ 145.168009][ T5276] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.168009][ T5276] [pid 5276] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5276] exit_group(0) = ? [pid 5276] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5081] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./36/binderfs") = 0 [pid 5081] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5279 attached [pid 5277] <... write resumed>) = 16777216 [pid 5279] set_robust_list(0x55557f81b660, 24 [pid 5277] munmap(0x7f5a20600000, 138412032 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5279 [pid 5279] <... set_robust_list resumed>) = 0 [pid 5279] chdir("./37") = 0 [ 145.293148][ T1837] [ 145.293148][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.293148][ T1837] [ 145.327630][ T1837] [ 145.327630][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.327630][ T1837] [pid 5279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5279] setpgid(0, 0) = 0 [pid 5279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5277] <... munmap resumed>) = 0 [ 145.352775][ T5081] [ 145.352775][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.352775][ T5081] [ 145.377706][ T111] [ 145.377706][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.377706][ T111] [pid 5279] write(3, "1000", 4) = 4 [pid 5277] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5279] close(3 [pid 5277] <... openat resumed>) = 4 [pid 5279] <... close resumed>) = 0 [pid 5279] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5277] ioctl(4, LOOP_SET_FD, 3 [pid 5279] memfd_create("syzkaller", 0) = 3 [pid 5277] <... ioctl resumed>) = 0 [pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5277] close(3) = 0 [pid 5279] <... mmap resumed>) = 0x7f5a20600000 [pid 5277] close(4) = 0 [ 145.408640][ T5081] [ 145.408640][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.408640][ T5081] [ 145.428459][ T5277] loop3: detected capacity change from 0 to 32768 [pid 5277] mkdir("./file0", 0777 [pid 5080] <... ioctl resumed>) = 0 [pid 5277] <... mkdir resumed>) = 0 [pid 5277] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] close(3 [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5280 [pid 5081] getdents64(4, ./strace-static-x86_64: Process 5280 attached 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5280] set_robust_list(0x55557f81b660, 24 [pid 5081] close(4) = 0 [pid 5081] rmdir("./36/file0") = 0 [pid 5280] <... set_robust_list resumed>) = 0 [pid 5280] chdir("./37") = 0 [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5280] setpgid(0, 0 [pid 5081] getdents64(3, [pid 5280] <... setpgid resumed>) = 0 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] close(3 [pid 5280] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5280] write(3, "1000", 4 [ 145.459783][ T5277] [ 145.459783][ T5277] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.459783][ T5277] [pid 5081] rmdir("./36" [pid 5280] <... write resumed>) = 4 [pid 5277] <... mount resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5280] close(3) = 0 [pid 5280] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] mkdir("./37", 0777 [pid 5280] memfd_create("syzkaller", 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5280] <... memfd_create resumed>) = 3 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] <... openat resumed>) = 3 [pid 5280] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5277] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5277] chdir("./file0") = 0 [pid 5277] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5277] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5277] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5277] exit_group(0) = ? [pid 5277] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=27 /* 0.27 s */} --- [pid 5082] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./36/binderfs") = 0 [ 145.620870][ T11] [ 145.620870][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.620870][ T11] [ 145.635827][ T11] [ 145.635827][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.635827][ T11] [ 145.670613][ T5082] [ 145.670613][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.670613][ T5082] [ 145.697749][ T112] [ 145.697749][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.697749][ T112] [pid 5082] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5278] <... write resumed>) = 16777216 [pid 5278] munmap(0x7f5a20600000, 138412032 [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [ 145.727286][ T5082] [ 145.727286][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.727286][ T5082] [pid 5082] close(4 [pid 5278] <... munmap resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./36/file0") = 0 [pid 5082] getdents64(3, [pid 5278] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3 [pid 5278] <... openat resumed>) = 4 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./36" [pid 5278] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] mkdir("./37", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5278] <... ioctl resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5278] close(3) = 0 [pid 5278] close(4) = 0 [pid 5278] mkdir("./file0", 0777 [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"..., 16777216 [pid 5278] <... mkdir resumed>) = 0 [ 145.830731][ T5278] loop4: detected capacity change from 0 to 32768 [pid 5278] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... ioctl resumed>) = 0 [pid 5278] <... mount resumed>) = 0 [pid 5278] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 145.873894][ T5278] [ 145.873894][ T5278] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.873894][ T5278] [pid 5278] chdir("./file0" [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5278] <... chdir resumed>) = 0 [pid 5278] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5281 attached ) = -1 EBUSY (Device or resource busy) [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5281 [pid 5281] set_robust_list(0x55557f81b660, 24 [pid 5278] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5281] <... set_robust_list resumed>) = 0 [pid 5278] getdents64(4, [pid 5281] chdir("./37" [pid 5278] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5278] exit_group(0) = ? [pid 5278] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...> [pid 5281] <... chdir resumed>) = 0 [pid 5083] <... restart_syscall resumed>) = 0 [pid 5083] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5280] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./36/binderfs" [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... unlink resumed>) = 0 [pid 5281] <... prctl resumed>) = 0 [pid 5083] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW [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] memfd_create("syzkaller", 0) = 3 [pid 5281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 145.991046][ T11] [ 145.991046][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 145.991046][ T11] [ 146.027302][ T11] [ 146.027302][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.027302][ T11] [ 146.067816][ T5083] [ 146.067816][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.067816][ T5083] [ 146.107591][ T111] [ 146.107591][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.107591][ T111] [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 146.137236][ T5083] [ 146.137236][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.137236][ T5083] [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./36/file0" [pid 5082] close(3 [pid 5083] <... rmdir resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5083] getdents64(3, [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5282 ./strace-static-x86_64: Process 5282 attached [pid 5083] close(3 [pid 5282] set_robust_list(0x55557f81b660, 24 [pid 5083] <... close resumed>) = 0 [pid 5282] <... set_robust_list resumed>) = 0 [pid 5083] rmdir("./36" [pid 5282] chdir("./37" [pid 5083] <... rmdir resumed>) = 0 [pid 5083] mkdir("./37", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5282] <... chdir resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5282] <... prctl resumed>) = 0 [pid 5282] setpgid(0, 0) = 0 [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5282] write(3, "1000", 4) = 4 [pid 5282] close(3) = 0 [pid 5282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5282] memfd_create("syzkaller", 0) = 3 [pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5280] <... write resumed>) = 16777216 [pid 5279] <... write resumed>) = 16777216 [pid 5279] munmap(0x7f5a20600000, 138412032 [pid 5280] munmap(0x7f5a20600000, 138412032 [pid 5281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5280] <... munmap resumed>) = 0 [pid 5279] <... munmap resumed>) = 0 [pid 5280] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5280] ioctl(4, LOOP_SET_FD, 3 [pid 5279] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5280] <... ioctl resumed>) = 0 [pid 5279] ioctl(4, LOOP_SET_FD, 3 [pid 5280] close(3 [pid 5279] <... ioctl resumed>) = 0 [pid 5280] <... close resumed>) = 0 [pid 5280] close(4 [pid 5279] close(3 [pid 5280] <... close resumed>) = 0 [pid 5279] <... close resumed>) = 0 [pid 5280] mkdir("./file0", 0777 [pid 5279] close(4) = 0 [pid 5280] <... mkdir resumed>) = 0 [ 146.518861][ T5280] loop1: detected capacity change from 0 to 32768 [ 146.528055][ T5279] loop0: detected capacity change from 0 to 32768 [pid 5279] mkdir("./file0", 0777 [pid 5280] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5279] <... mkdir resumed>) = 0 [pid 5279] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5280] <... mount resumed>) = 0 [pid 5280] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5280] chdir("./file0") = 0 [pid 5280] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5279] <... mount resumed>) = 0 [pid 5279] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5279] chdir("./file0") = 0 [pid 5280] openat(AT_FDCWD, ".", O_RDONLY [pid 5279] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5280] <... openat resumed>) = 4 [pid 5280] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5280] exit_group(0 [pid 5279] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5279] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5280] <... exit_group resumed>) = ? [pid 5279] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5279] exit_group(0) = ? [pid 5280] +++ exited with 0 +++ [pid 5279] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=28 /* 0.28 s */} --- [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5279, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=28 /* 0.28 s */} --- [pid 5080] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 146.573581][ T5280] [ 146.573581][ T5280] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.573581][ T5280] [ 146.590409][ T5279] [ 146.590409][ T5279] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.590409][ T5279] [pid 5079] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5080] newfstatat(3, "", [pid 5079] newfstatat(3, "", [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] getdents64(3, [pid 5080] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5080] unlink("./37/binderfs" [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... unlink resumed>) = 0 [pid 5079] unlink("./37/binderfs" [pid 5080] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [ 146.658640][ T11] [ 146.658640][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.658640][ T11] [ 146.669800][ T1837] [ 146.669800][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.669800][ T1837] [ 146.688322][ T11] [ 146.688322][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.688322][ T11] [ 146.703024][ T1837] [pid 5079] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5283 ./strace-static-x86_64: Process 5283 attached [pid 5283] set_robust_list(0x55557f81b660, 24) = 0 [ 146.703024][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.703024][ T1837] [ 146.709872][ T112] [ 146.709872][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.709872][ T112] [ 146.725070][ T111] [ 146.725070][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.725070][ T111] [ 146.734831][ T5080] [ 146.734831][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.734831][ T5080] [pid 5283] chdir("./37") = 0 [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5283] setpgid(0, 0) = 0 [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5283] write(3, "1000", 4) = 4 [pid 5283] close(3) = 0 [pid 5283] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5283] memfd_create("syzkaller", 0 [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"..., 16777216 [pid 5283] <... memfd_create resumed>) = 3 [pid 5283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 146.764311][ T5079] [ 146.764311][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.764311][ T5079] [ 146.781303][ T5080] [ 146.781303][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.781303][ T5080] [ 146.800654][ T5079] [ 146.800654][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 146.800654][ T5079] [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4 [pid 5079] <... umount2 resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./37/file0" [pid 5079] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3 [pid 5079] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] rmdir("./37" [pid 5079] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", [pid 5080] <... rmdir resumed>) = 0 [pid 5080] mkdir("./38", 0777 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, [pid 5080] <... mkdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./37/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./37") = 0 [pid 5079] mkdir("./38", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5281] <... write resumed>) = 16777216 [pid 5281] munmap(0x7f5a20600000, 138412032) = 0 [pid 5281] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5281] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5281] close(3) = 0 [pid 5281] close(4) = 0 [pid 5281] mkdir("./file0", 0777) = 0 [ 147.015563][ T5281] loop2: detected capacity change from 0 to 32768 [pid 5281] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5281] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5281] chdir("./file0") = 0 [pid 5281] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5281] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5281] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5281] exit_group(0) = ? [pid 5281] +++ exited with 0 +++ [ 147.073693][ T5281] [ 147.073693][ T5281] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.073693][ T5281] [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=32 /* 0.32 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./37/binderfs") = 0 [ 147.159172][ T11] [ 147.159172][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.159172][ T11] [ 147.187353][ T11] [ 147.187353][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.187353][ T11] [ 147.219631][ T5081] [ 147.219631][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.219631][ T5081] [pid 5081] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5284 attached , child_tidptr=0x55557f81b650) = 5284 [pid 5284] set_robust_list(0x55557f81b660, 24) = 0 [pid 5284] chdir("./38") = 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 [pid 5081] <... umount2 resumed>) = 0 [pid 5284] <... openat resumed>) = 3 [pid 5081] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./37/file0", [pid 5284] write(3, "1000", 4 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5284] <... write resumed>) = 4 [pid 5081] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5284] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5284] <... close resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5284] symlink("/dev/binderfs", "./binderfs" [pid 5283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5282] <... write resumed>) = 16777216 [pid 5081] <... openat resumed>) = 4 [ 147.267856][ T111] [ 147.267856][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.267856][ T111] [ 147.287788][ T5081] [ 147.287788][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.287788][ T5081] [pid 5284] <... symlink resumed>) = 0 [pid 5282] munmap(0x7f5a20600000, 138412032 [pid 5081] newfstatat(4, "", [pid 5079] <... ioctl resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5284] memfd_create("syzkaller", 0 [pid 5081] getdents64(4, [pid 5079] close(3 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5284] <... memfd_create resumed>) = 3 [pid 5081] getdents64(4, [pid 5079] <... close resumed>) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] close(4 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5284] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./37/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3./strace-static-x86_64: Process 5285 attached ) = 0 [pid 5285] set_robust_list(0x55557f81b660, 24 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5285 [pid 5285] <... set_robust_list resumed>) = 0 [pid 5081] rmdir("./37") = 0 [pid 5285] chdir("./38") = 0 [pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] mkdir("./38", 0777 [pid 5285] setpgid(0, 0) = 0 [pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... mkdir resumed>) = 0 [pid 5285] <... openat resumed>) = 3 [pid 5285] write(3, "1000", 4) = 4 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5285] close(3) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5285] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5285] memfd_create("syzkaller", 0) = 3 [pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5282] <... munmap resumed>) = 0 [pid 5282] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5282] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5282] close(3) = 0 [pid 5282] close(4) = 0 [ 147.457965][ T5282] loop3: detected capacity change from 0 to 32768 [pid 5282] mkdir("./file0", 0777) = 0 [ 147.530925][ T5282] [ 147.530925][ T5282] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.530925][ T5282] [pid 5282] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5282] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5282] chdir("./file0") = 0 [pid 5282] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5282] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5282] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5282] exit_group(0) = ? [pid 5282] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5082] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./37/binderfs") = 0 [ 147.671024][ T62] [ 147.671024][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.671024][ T62] [ 147.697260][ T62] [ 147.697260][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.697260][ T62] [ 147.717659][ T5082] [pid 5082] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5082] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW [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"..., 16777216 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 147.717659][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.717659][ T5082] [ 147.730922][ T112] [ 147.730922][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.730922][ T112] [ 147.754003][ T5082] [ 147.754003][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 147.754003][ T5082] [pid 5082] newfstatat(4, "", [pid 5081] <... ioctl resumed>) = 0 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] close(3 [pid 5082] getdents64(4, [pid 5081] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5286 attached [pid 5284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5286] set_robust_list(0x55557f81b660, 24 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5286] <... set_robust_list resumed>) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5286 [pid 5286] chdir("./38" [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4 [pid 5286] <... chdir resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./37/file0" [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] <... rmdir resumed>) = 0 [pid 5286] <... prctl resumed>) = 0 [pid 5286] setpgid(0, 0) = 0 [pid 5082] getdents64(3, [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5286] <... openat resumed>) = 3 [pid 5082] close(3 [pid 5286] write(3, "1000", 4 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./37" [pid 5286] <... write resumed>) = 4 [pid 5286] close(3 [pid 5082] <... rmdir resumed>) = 0 [pid 5286] <... close resumed>) = 0 [pid 5082] mkdir("./38", 0777 [pid 5286] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5286] memfd_create("syzkaller", 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5286] <... memfd_create resumed>) = 3 [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5283] <... write resumed>) = 16777216 [pid 5283] munmap(0x7f5a20600000, 138412032) = 0 [pid 5283] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5283] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5283] close(3) = 0 [pid 5283] close(4) = 0 [pid 5283] mkdir("./file0", 0777) = 0 [ 147.966184][ T5283] loop4: detected capacity change from 0 to 32768 [pid 5283] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5283] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5283] chdir("./file0") = 0 [pid 5283] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5283] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5283] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5283] exit_group(0) = ? [pid 5283] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=30 /* 0.30 s */} --- [pid 5083] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 148.030594][ T5283] [ 148.030594][ T5283] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.030594][ T5283] [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./37/binderfs") = 0 [pid 5083] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [ 148.180073][ T62] [ 148.180073][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.180073][ T62] [ 148.217962][ T62] [ 148.217962][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.217962][ T62] [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5287 ./strace-static-x86_64: Process 5287 attached [pid 5287] set_robust_list(0x55557f81b660, 24) = 0 [pid 5287] chdir("./38") = 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 [ 148.247669][ T5083] [ 148.247669][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.247669][ T5083] [ 148.267645][ T111] [ 148.267645][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.267645][ T111] [pid 5287] write(3, "1000", 4) = 4 [pid 5287] close(3) = 0 [pid 5287] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5287] memfd_create("syzkaller", 0) = 3 [pid 5287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5285] <... write resumed>) = 16777216 [pid 5284] <... write resumed>) = 16777216 [pid 5284] munmap(0x7f5a20600000, 138412032 [pid 5285] munmap(0x7f5a20600000, 138412032 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 148.299158][ T5083] [ 148.299158][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.299158][ T5083] [pid 5083] newfstatat(AT_FDCWD, "./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5284] <... munmap resumed>) = 0 [pid 5083] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5285] <... munmap resumed>) = 0 [pid 5284] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5284] <... openat resumed>) = 4 [pid 5083] getdents64(4, [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5284] ioctl(4, LOOP_SET_FD, 3 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5285] <... openat resumed>) = 4 [pid 5083] getdents64(4, [pid 5285] ioctl(4, LOOP_SET_FD, 3 [pid 5284] <... ioctl resumed>) = 0 [pid 5285] <... ioctl resumed>) = 0 [pid 5083] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4 [pid 5284] close(3) = 0 [pid 5284] close(4) = 0 [pid 5284] mkdir("./file0", 0777) = 0 [pid 5083] <... close resumed>) = 0 [pid 5285] close(3 [pid 5083] rmdir("./37/file0" [pid 5285] <... close resumed>) = 0 [pid 5285] close(4 [pid 5083] <... rmdir resumed>) = 0 [pid 5285] <... close resumed>) = 0 [pid 5083] getdents64(3, [pid 5285] mkdir("./file0", 0777 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5284] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5285] <... mkdir resumed>) = 0 [pid 5083] close(3 [pid 5285] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5083] <... close resumed>) = 0 [ 148.373974][ T5284] loop1: detected capacity change from 0 to 32768 [ 148.388297][ T5285] loop0: detected capacity change from 0 to 32768 [pid 5083] rmdir("./37") = 0 [pid 5083] mkdir("./38", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5284] <... mount resumed>) = 0 [pid 5284] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5284] chdir("./file0" [pid 5285] <... mount resumed>) = 0 [pid 5285] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5284] <... chdir resumed>) = 0 [pid 5284] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5285] chdir("./file0") = 0 [ 148.432581][ T5284] [ 148.432581][ T5284] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.432581][ T5284] [ 148.450553][ T5285] [ 148.450553][ T5285] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.450553][ T5285] [pid 5284] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5284] getdents64(4, [pid 5285] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5284] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5284] exit_group(0) = ? [pid 5284] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=32 /* 0.32 s */} --- [pid 5080] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5285] openat(AT_FDCWD, ".", O_RDONLY [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5285] <... openat resumed>) = 4 [pid 5080] unlink("./38/binderfs" [pid 5285] getdents64(4, [pid 5080] <... unlink resumed>) = 0 [pid 5285] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5285] exit_group(0) = ? [pid 5285] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5285, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5079] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./38/binderfs") = 0 [ 148.548673][ T1837] [ 148.548673][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.548673][ T1837] [ 148.587881][ T1837] [ 148.587881][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.587881][ T1837] [ 148.607813][ T11] [ 148.607813][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.607813][ T11] [ 148.628710][ T5080] [ 148.628710][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.628710][ T5080] [ 148.640257][ T11] [ 148.640257][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.640257][ T11] [ 148.652629][ T5080] [ 148.652629][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.652629][ T5080] [ 148.676658][ T112] [ 148.676658][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.676658][ T112] [ 148.699001][ T111] [ 148.699001][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5079] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./38/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] rmdir("./38/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./38/file0", [pid 5080] close(3 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] rmdir("./38" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] <... rmdir resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5080] mkdir("./39", 0777 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] getdents64(4, [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] close(4 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5079] <... close resumed>) = 0 [ 148.699001][ T111] [ 148.710843][ T5079] [ 148.710843][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.710843][ T5079] [ 148.731629][ T5079] [ 148.731629][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 148.731629][ T5079] [pid 5079] rmdir("./38/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./38") = 0 [pid 5079] mkdir("./39", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3 [pid 5286] <... write resumed>) = 16777216 [pid 5083] <... close resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5286] munmap(0x7f5a20600000, 138412032./strace-static-x86_64: Process 5288 attached [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5288 [pid 5288] set_robust_list(0x55557f81b660, 24) = 0 [pid 5288] chdir("./38") = 0 [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5288] setpgid(0, 0) = 0 [pid 5286] <... munmap resumed>) = 0 [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5286] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5288] <... openat resumed>) = 3 [pid 5286] <... openat resumed>) = 4 [pid 5288] write(3, "1000", 4 [pid 5286] ioctl(4, LOOP_SET_FD, 3 [pid 5288] <... write resumed>) = 4 [pid 5288] close(3) = 0 [pid 5288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5288] memfd_create("syzkaller", 0) = 3 [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5286] <... ioctl resumed>) = 0 [pid 5286] close(3) = 0 [pid 5288] <... mmap resumed>) = 0x7f5a20600000 [pid 5286] close(4) = 0 [pid 5286] mkdir("./file0", 0777) = 0 [ 148.928754][ T5286] loop2: detected capacity change from 0 to 32768 [pid 5286] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5286] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5286] chdir("./file0") = 0 [pid 5286] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [ 149.009291][ T5286] [ 149.009291][ T5286] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.009291][ T5286] [pid 5286] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5286] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5286] exit_group(0) = ? [pid 5286] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=34 /* 0.34 s */} --- [pid 5081] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./38/binderfs") = 0 [pid 5081] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5289 ./strace-static-x86_64: Process 5289 attached [ 149.109914][ T62] [ 149.109914][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.109914][ T62] [ 149.137348][ T62] [ 149.137348][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.137348][ T62] [pid 5289] set_robust_list(0x55557f81b660, 24) = 0 [pid 5289] chdir("./39") = 0 [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5289] setpgid(0, 0) = 0 [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5289] write(3, "1000", 4) = 4 [pid 5289] close(3) = 0 [ 149.177533][ T5081] [ 149.177533][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.177533][ T5081] [ 149.208449][ T112] [ 149.208449][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.208449][ T112] [ 149.220106][ T5081] [pid 5289] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5289] memfd_create("syzkaller", 0) = 3 [pid 5289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5290 ./strace-static-x86_64: Process 5290 attached [pid 5290] set_robust_list(0x55557f81b660, 24) = 0 [pid 5290] chdir("./39") = 0 [pid 5290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 149.220106][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.220106][ T5081] [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] memfd_create("syzkaller", 0) = 3 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] <... umount2 resumed>) = 0 [pid 5290] <... mmap resumed>) = 0x7f5a20600000 [pid 5081] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./38/file0", [pid 5287] <... write resumed>) = 16777216 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./38/file0") = 0 [pid 5287] munmap(0x7f5a20600000, 138412032 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [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"..., 16777216 [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./38") = 0 [pid 5081] mkdir("./39", 0777 [pid 5287] <... munmap resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5287] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5287] <... openat resumed>) = 4 [pid 5081] <... openat resumed>) = 3 [pid 5287] ioctl(4, LOOP_SET_FD, 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5287] <... ioctl resumed>) = 0 [pid 5287] close(3) = 0 [pid 5287] close(4) = 0 [pid 5287] mkdir("./file0", 0777) = 0 [ 149.373181][ T5287] loop3: detected capacity change from 0 to 32768 [pid 5287] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5287] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5287] chdir("./file0") = 0 [pid 5287] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5287] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5287] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 149.429411][ T5287] [ 149.429411][ T5287] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.429411][ T5287] [pid 5287] exit_group(0) = ? [pid 5287] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=37 /* 0.37 s */} --- [pid 5082] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./38/binderfs") = 0 [ 149.538094][ T1837] [ 149.538094][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.538094][ T1837] [ 149.579991][ T1837] [ 149.579991][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.579991][ T1837] [ 149.617763][ T5082] [ 149.617763][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.617763][ T5082] [pid 5082] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 149.658017][ T112] [ 149.658017][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.658017][ T112] [pid 5289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 149.698403][ T5082] [ 149.698403][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 149.698403][ T5082] [pid 5082] newfstatat(AT_FDCWD, "./38/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3 [pid 5082] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5291 attached [pid 5082] getdents64(4, [pid 5291] set_robust_list(0x55557f81b660, 24 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5291 [pid 5082] close(4 [pid 5291] <... set_robust_list resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./38/file0" [pid 5291] chdir("./39" [pid 5082] <... rmdir resumed>) = 0 [pid 5291] <... chdir resumed>) = 0 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./38") = 0 [pid 5291] <... prctl resumed>) = 0 [pid 5291] setpgid(0, 0 [pid 5082] mkdir("./39", 0777 [pid 5291] <... setpgid resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5291] <... openat resumed>) = 3 [pid 5291] write(3, "1000", 4) = 4 [pid 5291] close(3) = 0 [pid 5288] <... write resumed>) = 16777216 [pid 5291] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5288] munmap(0x7f5a20600000, 138412032 [pid 5291] memfd_create("syzkaller", 0) = 3 [pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5288] <... munmap resumed>) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5288] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5288] close(3) = 0 [pid 5288] close(4) = 0 [pid 5288] mkdir("./file0", 0777) = 0 [ 149.938772][ T5288] loop4: detected capacity change from 0 to 32768 [pid 5288] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5288] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5288] chdir("./file0") = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5288] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5288] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5288] exit_group(0) = ? [pid 5288] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=28 /* 0.28 s */} --- [pid 5083] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 150.001275][ T5288] [ 150.001275][ T5288] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.001275][ T5288] [pid 5083] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./38/binderfs") = 0 [pid 5083] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5292 attached , child_tidptr=0x55557f81b650) = 5292 [pid 5292] set_robust_list(0x55557f81b660, 24) = 0 [ 150.088511][ T1837] [ 150.088511][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.088511][ T1837] [ 150.118509][ T1837] [ 150.118509][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.118509][ T1837] [pid 5292] chdir("./39") = 0 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5292] setpgid(0, 0) = 0 [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5292] write(3, "1000", 4) = 4 [pid 5292] close(3) = 0 [pid 5292] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5292] memfd_create("syzkaller", 0) = 3 [pid 5292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5290] <... write resumed>) = 16777216 [ 150.164410][ T111] [ 150.164410][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.164410][ T111] [ 150.190422][ T5083] [ 150.190422][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.190422][ T5083] [pid 5290] munmap(0x7f5a20600000, 138412032 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./38/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./38/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [ 150.218513][ T5083] [ 150.218513][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.218513][ T5083] [pid 5289] <... write resumed>) = 16777216 [pid 5083] close(3) = 0 [pid 5083] rmdir("./38" [pid 5290] <... munmap resumed>) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5083] mkdir("./39", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5290] ioctl(4, LOOP_SET_FD, 3 [pid 5083] <... openat resumed>) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5289] munmap(0x7f5a20600000, 138412032 [pid 5290] <... ioctl resumed>) = 0 [pid 5290] close(3 [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"..., 16777216 [pid 5290] <... close resumed>) = 0 [pid 5290] close(4) = 0 [pid 5290] mkdir("./file0", 0777) = 0 [ 150.293388][ T5290] loop0: detected capacity change from 0 to 32768 [pid 5290] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5289] <... munmap resumed>) = 0 [pid 5289] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5289] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5290] <... mount resumed>) = 0 [pid 5290] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5289] close(3) = 0 [pid 5290] <... openat resumed>) = 3 [pid 5289] close(4 [pid 5290] chdir("./file0" [pid 5289] <... close resumed>) = 0 [pid 5290] <... chdir resumed>) = 0 [pid 5289] mkdir("./file0", 0777 [pid 5290] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5289] <... mkdir resumed>) = 0 [pid 5290] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5289] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5290] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5290] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5290] exit_group(0) = ? [pid 5290] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5290, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=35 /* 0.35 s */} --- [ 150.370178][ T5290] [ 150.370178][ T5290] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.370178][ T5290] [ 150.398062][ T5289] loop1: detected capacity change from 0 to 32768 [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./39/binderfs") = 0 [pid 5079] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5289] <... mount resumed>) = 0 [pid 5289] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5289] chdir("./file0") = 0 [pid 5289] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5289] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5289] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 150.471027][ T5289] [ 150.471027][ T5289] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.471027][ T5289] [ 150.487333][ T1837] [ 150.487333][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.487333][ T1837] [ 150.508051][ T1837] [ 150.508051][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.508051][ T1837] [pid 5289] exit_group(0) = ? [pid 5289] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [ 150.537729][ T5079] [ 150.537729][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.537729][ T5079] [ 150.560543][ T112] [ 150.560543][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.560543][ T112] [ 150.578532][ T5079] [ 150.578532][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5080] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5292] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5080] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] unlink("./39/binderfs") = 0 [ 150.578532][ T5079] [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./39/file0", [pid 5080] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [ 150.638573][ T11] [ 150.638573][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.638573][ T11] [ 150.657236][ T11] [ 150.657236][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.657236][ T11] [pid 5079] rmdir("./39/file0") = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./39") = 0 [pid 5079] mkdir("./40", 0777 [pid 5083] <... ioctl resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5293 attached [pid 5293] set_robust_list(0x55557f81b660, 24) = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5293 [ 150.689730][ T5080] [ 150.689730][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.689730][ T5080] [ 150.708122][ T111] [ 150.708122][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.708122][ T111] [ 150.727342][ T5080] [ 150.727342][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.727342][ T5080] [pid 5293] chdir("./39") = 0 [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5293] setpgid(0, 0) = 0 [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] memfd_create("syzkaller", 0) = 3 [pid 5293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./39/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5291] <... write resumed>) = 16777216 [pid 5080] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5291] munmap(0x7f5a20600000, 138412032 [pid 5080] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./39/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./39") = 0 [pid 5080] mkdir("./40", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5291] <... munmap resumed>) = 0 [pid 5291] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5291] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5291] close(3) = 0 [pid 5291] close(4) = 0 [ 150.880005][ T5291] loop2: detected capacity change from 0 to 32768 [pid 5291] mkdir("./file0", 0777) = 0 [pid 5291] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5291] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5291] chdir("./file0") = 0 [pid 5291] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5291] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5291] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5291] exit_group(0) = ? [pid 5291] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=36 /* 0.36 s */} --- [pid 5081] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 150.944604][ T5291] [ 150.944604][ T5291] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 150.944604][ T5291] [pid 5081] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./39/binderfs") = 0 [ 151.035737][ T62] [ 151.035737][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.035737][ T62] [ 151.052461][ T62] [ 151.052461][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.052461][ T62] [ 151.082551][ T112] [pid 5081] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5292] <... write resumed>) = 16777216 [pid 5079] <... ioctl resumed>) = 0 [pid 5292] munmap(0x7f5a20600000, 138412032 [ 151.082551][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.082551][ T112] [ 151.119465][ T5081] [ 151.119465][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.119465][ T5081] [pid 5079] close(3) = 0 [pid 5292] <... munmap resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5294 attached [pid 5292] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5294] set_robust_list(0x55557f81b660, 24 [pid 5292] <... openat resumed>) = 4 [pid 5292] ioctl(4, LOOP_SET_FD, 3 [pid 5294] <... set_robust_list resumed>) = 0 [pid 5081] <... umount2 resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5294 [pid 5294] chdir("./40" [pid 5081] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5292] <... ioctl resumed>) = 0 [pid 5292] close(3) = 0 [pid 5292] close(4) = 0 [pid 5292] mkdir("./file0", 0777 [pid 5294] <... chdir resumed>) = 0 [pid 5292] <... mkdir resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5292] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] newfstatat(AT_FDCWD, "./39/file0", [pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5294] <... prctl resumed>) = 0 [pid 5294] setpgid(0, 0 [pid 5081] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5294] <... setpgid resumed>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, [pid 5294] <... openat resumed>) = 3 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [ 151.147288][ T5081] [ 151.147288][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.147288][ T5081] [ 151.172796][ T5292] loop3: detected capacity change from 0 to 32768 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4 [pid 5294] write(3, "1000", 4 [pid 5081] <... close resumed>) = 0 [pid 5294] <... write resumed>) = 4 [pid 5081] rmdir("./39/file0") = 0 [pid 5294] close(3 [pid 5081] getdents64(3, [pid 5294] <... close resumed>) = 0 [pid 5294] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./39") = 0 [pid 5081] mkdir("./40", 0777 [pid 5294] <... symlink resumed>) = 0 [pid 5293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5294] memfd_create("syzkaller", 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5294] <... memfd_create resumed>) = 3 [pid 5294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5080] close(3) = 0 [pid 5294] <... mmap resumed>) = 0x7f5a20600000 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5292] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5295 attached [pid 5292] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5295 [pid 5295] set_robust_list(0x55557f81b660, 24 [pid 5292] <... openat resumed>) = 3 [pid 5295] <... set_robust_list resumed>) = 0 [pid 5292] chdir("./file0" [pid 5295] chdir("./40" [pid 5292] <... chdir resumed>) = 0 [pid 5295] <... chdir resumed>) = 0 [pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5292] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5295] <... prctl resumed>) = 0 [pid 5295] setpgid(0, 0 [pid 5292] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5295] <... setpgid resumed>) = 0 [pid 5292] openat(AT_FDCWD, ".", O_RDONLY [pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 151.241271][ T5292] [ 151.241271][ T5292] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.241271][ T5292] [pid 5295] write(3, "1000", 4) = 4 [pid 5295] close(3 [pid 5292] <... openat resumed>) = 4 [pid 5295] <... close resumed>) = 0 [pid 5295] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5295] memfd_create("syzkaller", 0 [pid 5292] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5292] exit_group(0 [pid 5295] <... memfd_create resumed>) = 3 [pid 5295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5292] <... exit_group resumed>) = ? [pid 5292] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5292, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=33 /* 0.33 s */} --- [pid 5082] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./39/binderfs") = 0 [ 151.368348][ T62] [ 151.368348][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.368348][ T62] [ 151.412097][ T62] [ 151.412097][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.412097][ T62] [ 151.447692][ T5082] [ 151.447692][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.447692][ T5082] [pid 5082] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5082] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 151.488795][ T112] [ 151.488795][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.488795][ T112] [ 151.517278][ T5082] [ 151.517278][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.517278][ T5082] [pid 5082] newfstatat(AT_FDCWD, "./39/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./39/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./39") = 0 [pid 5081] close(3) = 0 [pid 5082] mkdir("./40", 0777 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... mkdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5296 [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5296 attached [pid 5296] set_robust_list(0x55557f81b660, 24) = 0 [pid 5296] chdir("./40") = 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] memfd_create("syzkaller", 0) = 3 [pid 5296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5293] <... write resumed>) = 16777216 [pid 5293] munmap(0x7f5a20600000, 138412032) = 0 [pid 5293] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5293] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5293] close(3) = 0 [pid 5293] close(4) = 0 [pid 5293] mkdir("./file0", 0777) = 0 [pid 5293] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 151.755733][ T5293] loop4: detected capacity change from 0 to 32768 [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"..., 16777216 [pid 5293] <... mount resumed>) = 0 [pid 5293] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5293] chdir("./file0") = 0 [pid 5293] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5293] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5293] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5293] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5293] exit_group(0) = ? [ 151.833938][ T5293] [ 151.833938][ T5293] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.833938][ T5293] [pid 5293] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=33 /* 0.33 s */} --- [pid 5083] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./39/binderfs") = 0 [pid 5083] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [ 151.911930][ T11] [ 151.911930][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.911930][ T11] [ 151.948648][ T11] [ 151.948648][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.948648][ T11] [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5297 attached [pid 5297] set_robust_list(0x55557f81b660, 24) = 0 [pid 5297] chdir("./40") = 0 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5297] setpgid(0, 0) = 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5297 [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5297] write(3, "1000", 4) = 4 [pid 5297] close(3) = 0 [pid 5297] symlink("/dev/binderfs", "./binderfs") = 0 [ 151.967515][ T111] [ 151.967515][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.967515][ T111] [ 151.981705][ T5083] [ 151.981705][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 151.981705][ T5083] [pid 5297] memfd_create("syzkaller", 0) = 3 [pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./39/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [ 152.011214][ T5083] [ 152.011214][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.011214][ T5083] [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./39/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./39") = 0 [pid 5083] mkdir("./40", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5296] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5294] <... write resumed>) = 16777216 [pid 5294] munmap(0x7f5a20600000, 138412032) = 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] close(4) = 0 [pid 5294] mkdir("./file0", 0777) = 0 [ 152.332782][ T5294] loop0: detected capacity change from 0 to 32768 [pid 5294] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5294] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5294] chdir("./file0") = 0 [pid 5294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5294] openat(AT_FDCWD, ".", O_RDONLY [pid 5295] <... write resumed>) = 16777216 [pid 5294] <... openat resumed>) = 4 [pid 5294] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5294] exit_group(0) = ? [ 152.425002][ T5294] [ 152.425002][ T5294] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.425002][ T5294] [pid 5294] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=34 /* 0.34 s */} --- [pid 5079] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5295] munmap(0x7f5a20600000, 138412032 [pid 5079] newfstatat(3, "", [pid 5083] <... ioctl resumed>) = 0 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] close(3 [pid 5079] unlink("./40/binderfs" [pid 5083] <... close resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [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"..., 16777216 [pid 5079] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5298 attached [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5298 [pid 5298] set_robust_list(0x55557f81b660, 24) = 0 [pid 5298] chdir("./40") = 0 [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5295] <... munmap resumed>) = 0 [pid 5298] <... prctl resumed>) = 0 [pid 5298] setpgid(0, 0 [pid 5295] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5295] ioctl(4, LOOP_SET_FD, 3 [pid 5298] <... setpgid resumed>) = 0 [ 152.532325][ T11] [ 152.532325][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.532325][ T11] [ 152.558951][ T5295] loop1: detected capacity change from 0 to 32768 [ 152.577306][ T11] [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5298] write(3, "1000", 4 [pid 5295] <... ioctl resumed>) = 0 [pid 5295] close(3) = 0 [pid 5295] close(4) = 0 [pid 5295] mkdir("./file0", 0777) = 0 [pid 5295] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5298] <... write resumed>) = 4 [pid 5298] close(3) = 0 [pid 5298] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5298] memfd_create("syzkaller", 0 [pid 5296] <... write resumed>) = 16777216 [ 152.577306][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.577306][ T11] [ 152.597825][ T112] [ 152.597825][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.597825][ T112] [ 152.612620][ T5295] [ 152.612620][ T5295] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.612620][ T5295] [ 152.626937][ T5079] [pid 5298] <... memfd_create resumed>) = 3 [pid 5296] munmap(0x7f5a20600000, 138412032 [pid 5298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5295] <... mount resumed>) = 0 [pid 5295] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5295] chdir("./file0") = 0 [pid 5295] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5296] <... munmap resumed>) = 0 [pid 5296] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5295] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5296] <... openat resumed>) = 4 [pid 5296] ioctl(4, LOOP_SET_FD, 3 [pid 5295] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5295] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5295] exit_group(0) = ? [pid 5295] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5295, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=26 /* 0.26 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5296] <... ioctl resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5296] close(3 [pid 5080] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5296] <... close resumed>) = 0 [pid 5079] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5296] close(4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5296] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] newfstatat(AT_FDCWD, "./40/file0", [pid 5296] mkdir("./file0", 0777 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5296] <... mkdir resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 152.626937][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.626937][ T5079] [ 152.640666][ T5079] [ 152.640666][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.640666][ T5079] [ 152.665240][ T5296] loop2: detected capacity change from 0 to 32768 [pid 5296] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] newfstatat(3, "", [pid 5079] <... openat resumed>) = 4 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, [pid 5079] newfstatat(4, "", [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] getdents64(4, [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./40/file0" [pid 5080] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./40") = 0 [pid 5079] mkdir("./41", 0777 [pid 5296] <... mount resumed>) = 0 [pid 5080] unlink("./40/binderfs" [pid 5296] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5296] <... openat resumed>) = 3 [pid 5080] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5296] chdir("./file0" [pid 5079] <... openat resumed>) = 3 [pid 5296] <... chdir resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [ 152.718501][ T5296] [ 152.718501][ T5296] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.718501][ T5296] [ 152.758482][ T11] [ 152.758482][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.758482][ T11] [pid 5296] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5296] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5296] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5296] exit_group(0) = ? [pid 5296] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=26 /* 0.26 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 152.797285][ T11] [ 152.797285][ T11] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.797285][ T11] [pid 5081] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./40/binderfs") = 0 [ 152.845181][ T111] [ 152.845181][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.845181][ T111] [ 152.868023][ T5080] [ 152.868023][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.868023][ T5080] [ 152.883953][ T62] [ 152.883953][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.883953][ T62] [pid 5081] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [ 152.896402][ T62] [ 152.896402][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.896402][ T62] [ 152.917264][ T5080] [ 152.917264][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.917264][ T5080] [ 152.931264][ T5081] [ 152.931264][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.931264][ T5081] [pid 5080] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5297] <... write resumed>) = 16777216 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./40/file0", [pid 5297] munmap(0x7f5a20600000, 138412032 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5297] <... munmap resumed>) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5297] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5080] getdents64(4, [pid 5297] <... openat resumed>) = 4 [pid 5297] ioctl(4, LOOP_SET_FD, 3 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./40/file0" [pid 5297] <... ioctl resumed>) = 0 [pid 5297] close(3 [pid 5080] <... rmdir resumed>) = 0 [pid 5297] <... close resumed>) = 0 [pid 5297] close(4) = 0 [pid 5297] mkdir("./file0", 0777) = 0 [pid 5080] getdents64(3, [pid 5297] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./40") = 0 [pid 5080] mkdir("./41", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5081] <... umount2 resumed>) = 0 [ 152.961243][ T111] [ 152.961243][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.961243][ T111] [ 152.993029][ T5081] [ 152.993029][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 152.993029][ T5081] [ 153.004828][ T5297] loop3: detected capacity change from 0 to 32768 [pid 5081] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5297] <... mount resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5297] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [ 153.053891][ T5297] [ 153.053891][ T5297] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.053891][ T5297] [pid 5297] <... openat resumed>) = 3 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./40/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./40") = 0 [pid 5081] mkdir("./41", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5297] chdir("./file0" [pid 5298] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5297] <... chdir resumed>) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5297] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] close(3 [pid 5297] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5297] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5297] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5297] exit_group(0) = ? [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5297] +++ exited with 0 +++ ./strace-static-x86_64: Process 5299 attached [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=28 /* 0.28 s */} --- [pid 5299] set_robust_list(0x55557f81b660, 24 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5299 [pid 5082] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5299] <... set_robust_list resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5299] chdir("./41" [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5299] <... chdir resumed>) = 0 [pid 5082] getdents64(3, [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5299] <... prctl resumed>) = 0 [pid 5299] setpgid(0, 0 [pid 5082] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5299] <... setpgid resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./40/binderfs" [pid 5299] <... openat resumed>) = 3 [pid 5299] write(3, "1000", 4) = 4 [pid 5082] <... unlink resumed>) = 0 [pid 5299] close(3) = 0 [pid 5082] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5299] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5299] memfd_create("syzkaller", 0) = 3 [pid 5299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 153.218756][ T1837] [ 153.218756][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.218756][ T1837] [ 153.240136][ T1837] [ 153.240136][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.240136][ T1837] [ 153.265374][ T112] [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [ 153.265374][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.265374][ T112] [ 153.277311][ T5082] [ 153.277311][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.277311][ T5082] [ 153.307591][ T5082] [ 153.307591][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.307591][ T5082] [pid 5082] rmdir("./40/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./40") = 0 [pid 5082] mkdir("./41", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5300 attached , child_tidptr=0x55557f81b650) = 5300 [pid 5300] set_robust_list(0x55557f81b660, 24) = 0 [pid 5300] chdir("./41") = 0 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5300] setpgid(0, 0) = 0 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5300] write(3, "1000", 4) = 4 [pid 5300] close(3) = 0 [pid 5300] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5300] memfd_create("syzkaller", 0) = 3 [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5301 attached , child_tidptr=0x55557f81b650) = 5301 [pid 5301] set_robust_list(0x55557f81b660, 24) = 0 [pid 5301] chdir("./41") = 0 [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5301] setpgid(0, 0) = 0 [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5301] write(3, "1000", 4) = 4 [pid 5301] close(3) = 0 [pid 5301] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5301] memfd_create("syzkaller", 0) = 3 [pid 5301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5298] <... write resumed>) = 16777216 [pid 5298] munmap(0x7f5a20600000, 138412032) = 0 [pid 5298] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5298] ioctl(4, LOOP_SET_FD, 3 [pid 5299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5298] <... ioctl resumed>) = 0 [pid 5298] close(3) = 0 [pid 5298] close(4) = 0 [pid 5298] mkdir("./file0", 0777) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5298] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] close(3) = 0 [ 153.691352][ T5298] loop4: detected capacity change from 0 to 32768 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5302 ./strace-static-x86_64: Process 5302 attached [pid 5302] set_robust_list(0x55557f81b660, 24) = 0 [pid 5302] chdir("./41") = 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 5298] <... mount resumed>) = 0 [pid 5302] write(3, "1000", 4 [pid 5298] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5302] <... write resumed>) = 4 [pid 5298] <... openat resumed>) = 3 [pid 5302] close(3 [pid 5298] chdir("./file0") = 0 [pid 5302] <... close resumed>) = 0 [pid 5302] symlink("/dev/binderfs", "./binderfs" [ 153.775574][ T5298] [ 153.775574][ T5298] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.775574][ T5298] [pid 5298] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5302] <... symlink resumed>) = 0 [pid 5298] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5298] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5298] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5298] exit_group(0) = ? [pid 5302] memfd_create("syzkaller", 0) = 3 [pid 5298] +++ exited with 0 +++ [pid 5302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=29 /* 0.29 s */} --- [pid 5302] <... mmap resumed>) = 0x7f5a20600000 [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"..., 16777216 [pid 5083] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./40/binderfs") = 0 [ 153.882207][ T1837] [ 153.882207][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.882207][ T1837] [ 153.937348][ T1837] [ 153.937348][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.937348][ T1837] [ 153.967847][ T112] [ 153.967847][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 153.967847][ T112] [pid 5083] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... umount2 resumed>) = 0 [ 154.008151][ T5083] [ 154.008151][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.008151][ T5083] [ 154.038441][ T5083] [ 154.038441][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.038441][ T5083] [pid 5083] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./40/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./40") = 0 [pid 5083] mkdir("./41", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5299] <... write resumed>) = 16777216 [pid 5299] munmap(0x7f5a20600000, 138412032 [pid 5302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5299] <... munmap resumed>) = 0 [pid 5299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5299] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5299] close(3) = 0 [pid 5299] close(4) = 0 [pid 5299] mkdir("./file0", 0777) = 0 [ 154.320170][ T5299] loop0: detected capacity change from 0 to 32768 [pid 5299] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5300] <... write resumed>) = 16777216 [pid 5300] munmap(0x7f5a20600000, 138412032 [pid 5299] <... mount resumed>) = 0 [pid 5300] <... munmap resumed>) = 0 [pid 5299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5300] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5299] <... openat resumed>) = 3 [pid 5299] chdir("./file0") = 0 [pid 5299] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5300] ioctl(4, LOOP_SET_FD, 3 [pid 5299] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 154.437560][ T5299] [ 154.437560][ T5299] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.437560][ T5299] [pid 5299] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5299] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5299] exit_group(0) = ? [pid 5299] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=32 /* 0.32 s */} --- [pid 5079] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, [pid 5300] <... ioctl resumed>) = 0 [pid 5300] close(3) = 0 [pid 5300] close(4) = 0 [pid 5300] mkdir("./file0", 0777) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5300] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] close(3) = 0 [ 154.489014][ T5300] loop1: detected capacity change from 0 to 32768 [pid 5079] unlink("./41/binderfs") = 0 [pid 5079] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5301] <... write resumed>) = 16777216 [pid 5300] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5303 attached [pid 5300] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5303 [pid 5303] set_robust_list(0x55557f81b660, 24 [pid 5300] chdir("./file0" [pid 5303] <... set_robust_list resumed>) = 0 [pid 5301] munmap(0x7f5a20600000, 138412032 [pid 5300] <... chdir resumed>) = 0 [pid 5303] chdir("./41") = 0 [ 154.540439][ T5300] [ 154.540439][ T5300] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.540439][ T5300] [ 154.555123][ T1837] [ 154.555123][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.555123][ T1837] [pid 5300] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5300] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5300] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5303] <... prctl resumed>) = 0 [pid 5300] getdents64(4, [pid 5303] setpgid(0, 0) = 0 [pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5303] write(3, "1000", 4) = 4 [pid 5303] close(3) = 0 [pid 5300] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5303] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5303] memfd_create("syzkaller", 0) = 3 [pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5300] exit_group(0) = ? [pid 5300] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=30 /* 0.30 s */} --- [ 154.590039][ T1837] [ 154.590039][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.590039][ T1837] [ 154.626295][ T111] [ 154.626295][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.626295][ T111] [ 154.637518][ T5079] [pid 5301] <... munmap resumed>) = 0 [pid 5301] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5080] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5301] <... openat resumed>) = 4 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5301] ioctl(4, LOOP_SET_FD, 3 [pid 5080] <... openat resumed>) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5301] <... ioctl resumed>) = 0 [pid 5080] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5301] close(3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5301] <... close resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5301] close(4 [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5301] <... close resumed>) = 0 [pid 5080] unlink("./41/binderfs" [pid 5301] mkdir("./file0", 0777) = 0 [pid 5080] <... unlink resumed>) = 0 [ 154.637518][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.637518][ T5079] [ 154.659014][ T5079] [ 154.659014][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.659014][ T5079] [ 154.660329][ T5301] loop2: detected capacity change from 0 to 32768 [pid 5301] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5301] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5301] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./41/file0", [pid 5301] <... openat resumed>) = 3 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 154.699622][ T5301] [ 154.699622][ T5301] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.699622][ T5301] [ 154.720224][ T1837] [ 154.720224][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.720224][ T1837] [pid 5079] newfstatat(4, "", [pid 5301] chdir("./file0" [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./41/file0") = 0 [pid 5079] getdents64(3, [pid 5301] <... chdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5301] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] <... close resumed>) = 0 [pid 5302] <... write resumed>) = 16777216 [pid 5301] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] rmdir("./41") = 0 [pid 5079] mkdir("./42", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5301] openat(AT_FDCWD, ".", O_RDONLY [pid 5302] munmap(0x7f5a20600000, 138412032 [pid 5301] <... openat resumed>) = 4 [pid 5301] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 154.748092][ T1837] [ 154.748092][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.748092][ T1837] [ 154.773321][ T112] [ 154.773321][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.773321][ T112] [pid 5301] exit_group(0 [pid 5302] <... munmap resumed>) = 0 [pid 5301] <... exit_group resumed>) = ? [pid 5302] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5301] +++ exited with 0 +++ [pid 5302] <... openat resumed>) = 4 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=30 /* 0.30 s */} --- [pid 5081] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5302] ioctl(4, LOOP_SET_FD, 3 [pid 5081] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./41/binderfs") = 0 [pid 5081] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5302] <... ioctl resumed>) = 0 [pid 5302] close(3) = 0 [pid 5302] close(4) = 0 [pid 5302] mkdir("./file0", 0777) = 0 [ 154.798587][ T5080] [ 154.798587][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.798587][ T5080] [ 154.811017][ T5080] [ 154.811017][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.811017][ T5080] [ 154.824164][ T5302] loop3: detected capacity change from 0 to 32768 [ 154.831526][ T1837] [ 154.831526][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.831526][ T1837] [pid 5302] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5302] <... mount resumed>) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 154.863653][ T5302] [ 154.863653][ T5302] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.863653][ T5302] [ 154.874933][ T1837] [ 154.874933][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.874933][ T1837] [pid 5080] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5302] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5302] <... openat resumed>) = 3 [pid 5080] close(4) = 0 [pid 5302] chdir("./file0" [pid 5080] rmdir("./41/file0" [pid 5302] <... chdir resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5080] getdents64(3, [pid 5302] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5302] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5302] getdents64(4, [pid 5080] close(3 [pid 5302] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5302] exit_group(0) = ? [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./41") = 0 [pid 5080] mkdir("./42", 0777 [pid 5302] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5080] <... mkdir resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5082] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 154.908233][ T112] [ 154.908233][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.908233][ T112] [pid 5082] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./41/binderfs") = 0 [ 154.949989][ T5081] [ 154.949989][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.949989][ T5081] [ 154.969997][ T5081] [ 154.969997][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.969997][ T5081] [ 154.982095][ T1837] [ 154.982095][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.982095][ T1837] [ 154.996079][ T1837] [pid 5082] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW [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"..., 16777216 [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 154.996079][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 154.996079][ T1837] [ 155.022784][ T5082] [ 155.022784][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.022784][ T5082] [ 155.037364][ T111] [ 155.037364][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.037364][ T111] [pid 5081] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./41/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./41") = 0 [pid 5081] mkdir("./42", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 155.077250][ T5082] [ 155.077250][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.077250][ T5082] [pid 5082] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./41/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./41") = 0 [pid 5082] mkdir("./42", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5304 attached , child_tidptr=0x55557f81b650) = 5304 [pid 5304] set_robust_list(0x55557f81b660, 24) = 0 [pid 5304] chdir("./42") = 0 [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5304] setpgid(0, 0) = 0 [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5304] write(3, "1000", 4) = 4 [pid 5304] close(3) = 0 [pid 5304] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5305 attached [pid 5305] set_robust_list(0x55557f81b660, 24) = 0 [pid 5304] memfd_create("syzkaller", 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5305 [pid 5305] chdir("./42" [pid 5304] <... memfd_create resumed>) = 3 [pid 5304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5305] <... chdir resumed>) = 0 [pid 5304] <... mmap resumed>) = 0x7f5a20600000 [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] memfd_create("syzkaller", 0) = 3 [pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5081] <... ioctl resumed>) = 0 [pid 5081] close(3) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5306 attached [pid 5306] set_robust_list(0x55557f81b660, 24 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5306 [pid 5306] <... set_robust_list resumed>) = 0 [pid 5306] chdir("./42") = 0 [pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5306] setpgid(0, 0) = 0 [pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5306] write(3, "1000", 4 [pid 5303] <... write resumed>) = 16777216 [pid 5306] <... write resumed>) = 4 [pid 5306] close(3) = 0 [pid 5306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5306] memfd_create("syzkaller", 0 [pid 5303] munmap(0x7f5a20600000, 138412032 [pid 5306] <... memfd_create resumed>) = 3 [pid 5306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5303] <... munmap resumed>) = 0 [pid 5303] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5303] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3 [pid 5303] <... ioctl resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5303] close(3) = 0 [pid 5303] close(4) = 0 [pid 5303] mkdir("./file0", 0777 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5303] <... mkdir resumed>) = 0 [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5307 ./strace-static-x86_64: Process 5307 attached [ 155.574294][ T5303] loop4: detected capacity change from 0 to 32768 [pid 5307] set_robust_list(0x55557f81b660, 24) = 0 [pid 5303] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5307] chdir("./42") = 0 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5307] setpgid(0, 0) = 0 [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5307] write(3, "1000", 4) = 4 [pid 5307] close(3) = 0 [pid 5307] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5307] memfd_create("syzkaller", 0) = 3 [pid 5307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 155.622183][ T5303] [ 155.622183][ T5303] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.622183][ T5303] [pid 5303] <... mount resumed>) = 0 [pid 5303] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5303] chdir("./file0") = 0 [pid 5303] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5303] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5303] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5303] exit_group(0) = ? [pid 5303] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=31 /* 0.31 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./41/binderfs") = 0 [pid 5083] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 155.754434][ T1837] [ 155.754434][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.754434][ T1837] [ 155.798299][ T1837] [ 155.798299][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.798299][ T1837] [ 155.835262][ T5083] [ 155.835262][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.835262][ T5083] [pid 5304] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [ 155.858328][ T112] [ 155.858328][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 155.858328][ T112] [ 155.898524][ T5083] [ 155.898524][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... umount2 resumed>) = 0 [ 155.898524][ T5083] [pid 5083] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [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"..., 16777216 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./41/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./41") = 0 [pid 5083] mkdir("./42", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5304] <... write resumed>) = 16777216 [pid 5304] munmap(0x7f5a20600000, 138412032) = 0 [pid 5304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5304] ioctl(4, LOOP_SET_FD, 3 [pid 5305] <... write resumed>) = 16777216 [pid 5304] <... ioctl resumed>) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3 [pid 5305] munmap(0x7f5a20600000, 138412032 [pid 5304] close(3) = 0 [pid 5304] close(4) = 0 [pid 5304] mkdir("./file0", 0777 [pid 5083] <... close resumed>) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5308 attached , child_tidptr=0x55557f81b650) = 5308 [pid 5308] set_robust_list(0x55557f81b660, 24 [pid 5304] <... mkdir resumed>) = 0 [pid 5308] <... set_robust_list resumed>) = 0 [pid 5308] chdir("./42" [pid 5304] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5308] <... chdir resumed>) = 0 [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 156.402272][ T5304] loop0: detected capacity change from 0 to 32768 [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] memfd_create("syzkaller", 0 [pid 5305] <... munmap resumed>) = 0 [pid 5308] <... memfd_create resumed>) = 3 [pid 5305] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5305] <... openat resumed>) = 4 [pid 5308] <... mmap resumed>) = 0x7f5a20600000 [pid 5305] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5306] <... write resumed>) = 16777216 [pid 5305] close(3 [pid 5306] munmap(0x7f5a20600000, 138412032 [pid 5305] <... close resumed>) = 0 [pid 5305] close(4) = 0 [pid 5305] mkdir("./file0", 0777) = 0 [pid 5304] <... mount resumed>) = 0 [pid 5304] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5304] chdir("./file0") = 0 [pid 5304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5304] openat(AT_FDCWD, ".", O_RDONLY [pid 5305] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5304] <... openat resumed>) = 4 [ 156.487998][ T5304] [ 156.487998][ T5304] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.487998][ T5304] [ 156.507521][ T5305] loop1: detected capacity change from 0 to 32768 [pid 5304] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5304] exit_group(0) = ? [pid 5304] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=32 /* 0.32 s */} --- [pid 5079] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./42/binderfs") = 0 [pid 5079] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5306] <... munmap resumed>) = 0 [pid 5306] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5305] <... mount resumed>) = 0 [pid 5306] <... openat resumed>) = 4 [pid 5305] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5305] chdir("./file0") = 0 [pid 5306] ioctl(4, LOOP_SET_FD, 3 [ 156.585579][ T5305] [ 156.585579][ T5305] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.585579][ T5305] [ 156.609087][ T1837] [ 156.609087][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.609087][ T1837] [pid 5305] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5305] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5306] <... ioctl resumed>) = 0 [pid 5305] getdents64(4, [pid 5306] close(3 [pid 5305] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5306] <... close resumed>) = 0 [pid 5305] exit_group(0) = ? [pid 5306] close(4) = 0 [pid 5306] mkdir("./file0", 0777 [pid 5305] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} --- [pid 5306] <... mkdir resumed>) = 0 [pid 5080] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5306] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./42/binderfs") = 0 [ 156.633753][ T5306] loop2: detected capacity change from 0 to 32768 [ 156.638517][ T1837] [ 156.638517][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.638517][ T1837] [ 156.668902][ T111] [ 156.668902][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.668902][ T111] [pid 5080] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5306] <... mount resumed>) = 0 [ 156.688977][ T2436] [ 156.688977][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.688977][ T2436] [ 156.709208][ T5306] [ 156.709208][ T5306] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.709208][ T5306] [ 156.720959][ T5079] [ 156.720959][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.720959][ T5079] [pid 5306] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5306] chdir("./file0") = 0 [ 156.738103][ T2436] [ 156.738103][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.738103][ T2436] [ 156.757564][ T5079] [ 156.757564][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.757564][ T5079] [ 156.760274][ T112] [ 156.760274][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.760274][ T112] [ 156.784656][ T5080] [pid 5306] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5307] <... write resumed>) = 16777216 [pid 5079] <... umount2 resumed>) = 0 [pid 5307] munmap(0x7f5a20600000, 138412032 [pid 5079] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5306] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5306] openat(AT_FDCWD, ".", O_RDONLY [pid 5307] <... munmap resumed>) = 0 [pid 5079] newfstatat(AT_FDCWD, "./42/file0", [pid 5307] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5306] <... openat resumed>) = 4 [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5307] <... openat resumed>) = 4 [pid 5307] ioctl(4, LOOP_SET_FD, 3 [pid 5306] getdents64(4, [pid 5080] <... umount2 resumed>) = 0 [pid 5079] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5306] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5306] exit_group(0) = ? [pid 5079] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5307] <... ioctl resumed>) = 0 [pid 5308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5306] +++ exited with 0 +++ [pid 5080] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 4 [pid 5307] close(3 [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5306, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=31 /* 0.31 s */} --- [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(4, "", [pid 5307] <... close resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./42/file0", [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] getdents64(4, [pid 5081] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(4, [pid 5081] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... openat resumed>) = 4 [pid 5079] close(4 [pid 5081] newfstatat(3, "", [pid 5080] newfstatat(4, "", [pid 5079] <... close resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5307] close(4 [pid 5079] rmdir("./42/file0" [pid 5081] getdents64(3, [pid 5080] getdents64(4, [pid 5079] <... rmdir resumed>) = 0 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(3, [pid 5081] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] getdents64(4, [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5081] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5080] close(4 [pid 5079] <... close resumed>) = 0 [pid 5307] <... close resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 156.784656][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.784656][ T5080] [ 156.812176][ T5080] [ 156.812176][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.812176][ T5080] [ 156.830121][ T5307] loop3: detected capacity change from 0 to 32768 [pid 5080] <... close resumed>) = 0 [pid 5079] rmdir("./42" [pid 5081] unlink("./42/binderfs" [pid 5080] rmdir("./42/file0" [pid 5079] <... rmdir resumed>) = 0 [pid 5307] mkdir("./file0", 0777 [pid 5081] <... unlink resumed>) = 0 [pid 5080] <... rmdir resumed>) = 0 [pid 5079] mkdir("./43", 0777 [pid 5307] <... mkdir resumed>) = 0 [pid 5081] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5307] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5080] close(3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5080] <... close resumed>) = 0 [pid 5080] rmdir("./42") = 0 [pid 5080] mkdir("./43", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 156.876035][ T1837] [ 156.876035][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.876035][ T1837] [ 156.901252][ T1837] [ 156.901252][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.901252][ T1837] [ 156.912686][ T5081] [ 156.912686][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.912686][ T5081] [ 156.919094][ T5307] [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5307] <... mount resumed>) = 0 [pid 5307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5307] chdir("./file0") = 0 [pid 5307] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 156.919094][ T5307] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.919094][ T5307] [ 156.923912][ T111] [ 156.923912][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.923912][ T111] [ 156.944869][ T5081] [ 156.944869][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 156.944869][ T5081] [pid 5307] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5307] getdents64(4, [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5307] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5307] exit_group(0 [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./42/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./42") = 0 [pid 5081] mkdir("./43", 0777) = 0 [pid 5307] <... exit_group resumed>) = ? [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5307] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=38 /* 0.38 s */} --- [pid 5082] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./42/binderfs") = 0 [ 157.070485][ T2445] [ 157.070485][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.070485][ T2445] [ 157.106701][ T2445] [ 157.106701][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.106701][ T2445] [ 157.156130][ T112] [ 157.156130][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.156130][ T112] [ 157.179995][ T5082] [ 157.179995][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.179995][ T5082] [pid 5082] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5082] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 157.217423][ T5082] [ 157.217423][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.217423][ T5082] [pid 5082] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./42/file0") = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5082] close(3) = 0 [pid 5082] rmdir("./42") = 0 [pid 5082] mkdir("./43", 0777) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5079] <... ioctl resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5309 attached [pid 5308] <... write resumed>) = 16777216 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5309 [pid 5309] set_robust_list(0x55557f81b660, 24 [pid 5080] close(3 [pid 5308] munmap(0x7f5a20600000, 138412032 [pid 5309] <... set_robust_list resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5309] chdir("./43") = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5310 ./strace-static-x86_64: Process 5310 attached [pid 5310] set_robust_list(0x55557f81b660, 24) = 0 [pid 5310] chdir("./43") = 0 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5310] setpgid(0, 0) = 0 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] setpgid(0, 0) = 0 [pid 5310] <... openat resumed>) = 3 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5308] <... munmap resumed>) = 0 [pid 5309] <... openat resumed>) = 3 [pid 5309] write(3, "1000", 4) = 4 [pid 5310] write(3, "1000", 4 [pid 5309] close(3 [pid 5310] <... write resumed>) = 4 [pid 5309] <... close resumed>) = 0 [pid 5309] symlink("/dev/binderfs", "./binderfs" [pid 5310] close(3) = 0 [pid 5310] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5310] memfd_create("syzkaller", 0 [pid 5308] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5308] ioctl(4, LOOP_SET_FD, 3 [pid 5309] <... symlink resumed>) = 0 [pid 5310] <... memfd_create resumed>) = 3 [pid 5310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5309] memfd_create("syzkaller", 0) = 3 [pid 5309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5308] <... ioctl resumed>) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5308] close(3) = 0 [pid 5081] close(3 [pid 5308] close(4) = 0 [ 157.378494][ T5308] loop4: detected capacity change from 0 to 32768 [pid 5308] mkdir("./file0", 0777) = 0 [pid 5081] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5311 ./strace-static-x86_64: Process 5311 attached [pid 5311] set_robust_list(0x55557f81b660, 24 [pid 5308] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5311] <... set_robust_list resumed>) = 0 [pid 5311] chdir("./43") = 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 [pid 5311] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5311] memfd_create("syzkaller", 0) = 3 [pid 5311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5308] <... mount resumed>) = 0 [pid 5308] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5308] chdir("./file0") = 0 [ 157.450441][ T5308] [ 157.450441][ T5308] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.450441][ T5308] [pid 5308] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5308] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5308] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5308] exit_group(0) = ? [pid 5308] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=28 /* 0.28 s */} --- [pid 5083] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5083] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./42/binderfs") = 0 [ 157.555109][ T2445] [ 157.555109][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.555109][ T2445] [ 157.587283][ T2445] [ 157.587283][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.587283][ T2445] [ 157.618070][ T111] [ 157.618070][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.618070][ T111] [ 157.657245][ T5083] [ 157.657245][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.657245][ T5083] [pid 5083] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5312 attached , child_tidptr=0x55557f81b650) = 5312 [pid 5312] set_robust_list(0x55557f81b660, 24) = 0 [ 157.697278][ T5083] [ 157.697278][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 157.697278][ T5083] [pid 5312] chdir("./43" [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./42/file0", [pid 5312] <... chdir resumed>) = 0 [pid 5083] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./42/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./42" [pid 5312] <... prctl resumed>) = 0 [pid 5083] <... rmdir resumed>) = 0 [pid 5312] setpgid(0, 0) = 0 [pid 5312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] mkdir("./43", 0777 [pid 5312] <... openat resumed>) = 3 [pid 5312] write(3, "1000", 4 [pid 5083] <... mkdir resumed>) = 0 [pid 5312] <... write resumed>) = 4 [pid 5312] close(3) = 0 [pid 5312] symlink("/dev/binderfs", "./binderfs" [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"..., 16777216 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5312] <... symlink resumed>) = 0 [pid 5312] memfd_create("syzkaller", 0 [pid 5083] <... openat resumed>) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5312] <... memfd_create resumed>) = 3 [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5313 ./strace-static-x86_64: Process 5313 attached [pid 5313] set_robust_list(0x55557f81b660, 24) = 0 [pid 5313] chdir("./43") = 0 [pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5313] setpgid(0, 0) = 0 [pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [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"..., 16777216 [pid 5313] write(3, "1000", 4) = 4 [pid 5313] close(3) = 0 [pid 5313] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5313] memfd_create("syzkaller", 0) = 3 [pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5309] <... write resumed>) = 16777216 [pid 5309] munmap(0x7f5a20600000, 138412032) = 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] close(4) = 0 [pid 5309] mkdir("./file0", 0777) = 0 [pid 5309] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5310] <... write resumed>) = 16777216 [ 158.417815][ T5309] loop0: detected capacity change from 0 to 32768 [ 158.451929][ T5309] [ 158.451929][ T5309] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.451929][ T5309] [pid 5310] munmap(0x7f5a20600000, 138412032 [pid 5309] <... mount resumed>) = 0 [pid 5310] <... munmap resumed>) = 0 [pid 5309] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5309] chdir("./file0") = 0 [pid 5309] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5310] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5310] ioctl(4, LOOP_SET_FD, 3 [pid 5309] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5309] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5309] exit_group(0) = ? [pid 5309] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=28 /* 0.28 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, [pid 5310] <... ioctl resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5310] close(3 [pid 5079] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5310] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5311] <... write resumed>) = 16777216 [pid 5310] close(4 [pid 5079] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5310] <... close resumed>) = 0 [pid 5310] mkdir("./file0", 0777 [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./43/binderfs" [pid 5310] <... mkdir resumed>) = 0 [pid 5311] munmap(0x7f5a20600000, 138412032 [pid 5079] <... unlink resumed>) = 0 [pid 5310] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 158.531746][ T5310] loop1: detected capacity change from 0 to 32768 [pid 5079] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5311] <... munmap resumed>) = 0 [pid 5311] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5311] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5311] close(3) = 0 [pid 5311] close(4) = 0 [pid 5311] mkdir("./file0", 0777) = 0 [ 158.597002][ T1837] [ 158.597002][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.597002][ T1837] [ 158.602519][ T5311] loop2: detected capacity change from 0 to 32768 [ 158.614068][ T1837] [ 158.614068][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.614068][ T1837] [ 158.647584][ T5079] [ 158.647584][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.647584][ T5079] [ 158.673031][ T112] [ 158.673031][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.673031][ T112] [ 158.690674][ T5079] [pid 5311] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] <... umount2 resumed>) = 0 [pid 5311] <... mount resumed>) = 0 [pid 5311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5311] <... openat resumed>) = 3 [pid 5311] chdir("./file0") = 0 [pid 5311] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5310] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5311] openat(AT_FDCWD, ".", O_RDONLY [pid 5310] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5311] <... openat resumed>) = 4 [pid 5310] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 4 [pid 5311] getdents64(4, [pid 5079] newfstatat(4, "", [pid 5311] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5310] chdir("./file0" [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5311] exit_group(0 [pid 5310] <... chdir resumed>) = 0 [ 158.690674][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.690674][ T5079] [ 158.690701][ T5310] [ 158.690701][ T5310] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.690701][ T5310] [ 158.712950][ T5311] [ 158.712950][ T5311] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.712950][ T5311] [pid 5079] getdents64(4, [pid 5311] <... exit_group resumed>) = ? [pid 5310] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5079] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5310] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] getdents64(4, [pid 5310] <... openat resumed>) = 4 [pid 5079] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5311] +++ exited with 0 +++ [pid 5310] getdents64(4, [pid 5079] close(4 [pid 5310] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=30 /* 0.30 s */} --- [pid 5079] <... close resumed>) = 0 [pid 5310] exit_group(0 [pid 5081] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] rmdir("./43/file0" [pid 5310] <... exit_group resumed>) = ? [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", [pid 5079] <... rmdir resumed>) = 0 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5310] +++ exited with 0 +++ [pid 5081] getdents64(3, [pid 5079] getdents64(3, [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=14 /* 0.14 s */, si_stime=30 /* 0.30 s */} --- [pid 5079] close(3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5081] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./43" [pid 5081] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] unlink("./43/binderfs" [pid 5080] <... openat resumed>) = 3 [pid 5081] <... unlink resumed>) = 0 [pid 5080] newfstatat(3, "", [pid 5079] <... rmdir resumed>) = 0 [pid 5081] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] mkdir("./44", 0777 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5080] unlink("./43/binderfs") = 0 [pid 5080] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [ 158.806355][ T2445] [ 158.806355][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.806355][ T2445] [ 158.827571][ T1837] [ 158.827571][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.827571][ T1837] [ 158.838188][ T2445] [ 158.838188][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.838188][ T2445] [ 158.851097][ T1837] [pid 5312] <... write resumed>) = 16777216 [ 158.851097][ T1837] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.851097][ T1837] [ 158.863086][ T111] [ 158.863086][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.863086][ T111] [ 158.875097][ T112] [ 158.875097][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.875097][ T112] [ 158.885732][ T5081] [ 158.885732][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.885732][ T5081] [pid 5312] munmap(0x7f5a20600000, 138412032) = 0 [pid 5312] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5312] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5312] close(3) = 0 [pid 5312] close(4) = 0 [pid 5312] mkdir("./file0", 0777 [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 158.908959][ T5081] [ 158.908959][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.908959][ T5081] [ 158.920114][ T5080] [ 158.920114][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.920114][ T5080] [ 158.938761][ T5312] loop3: detected capacity change from 0 to 32768 [ 158.947463][ T5080] [ 158.947463][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 158.947463][ T5080] [pid 5081] newfstatat(AT_FDCWD, "./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5312] <... mkdir resumed>) = 0 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5312] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] <... openat resumed>) = 4 [pid 5081] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./43/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./43") = 0 [pid 5081] mkdir("./44", 0777) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5080] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... openat resumed>) = 3 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./43/file0", [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [pid 5080] rmdir("./43/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./43") = 0 [pid 5080] mkdir("./44", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5312] <... mount resumed>) = 0 [pid 5312] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 159.028420][ T5312] [ 159.028420][ T5312] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.028420][ T5312] [pid 5312] chdir("./file0") = 0 [pid 5312] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5312] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5312] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5312] exit_group(0) = ? [pid 5312] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5312, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=35 /* 0.35 s */} --- [pid 5082] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./43/binderfs") = 0 [pid 5082] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5313] <... write resumed>) = 16777216 [pid 5313] munmap(0x7f5a20600000, 138412032 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5314 attached [pid 5313] <... munmap resumed>) = 0 [pid 5314] set_robust_list(0x55557f81b660, 24 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5314 [pid 5314] <... set_robust_list resumed>) = 0 [ 159.158273][ T2445] [ 159.158273][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.158273][ T2445] [ 159.185906][ T2445] [ 159.185906][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.185906][ T2445] [pid 5314] chdir("./44") = 0 [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5313] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5314] setpgid(0, 0 [pid 5313] ioctl(4, LOOP_SET_FD, 3 [pid 5314] <... setpgid resumed>) = 0 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5313] <... ioctl resumed>) = 0 [ 159.230065][ T111] [ 159.230065][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.230065][ T111] [ 159.252998][ T5313] loop4: detected capacity change from 0 to 32768 [pid 5314] <... openat resumed>) = 3 [pid 5314] write(3, "1000", 4) = 4 [pid 5314] close(3) = 0 [pid 5313] close(3 [pid 5314] symlink("/dev/binderfs", "./binderfs" [pid 5313] <... close resumed>) = 0 [pid 5314] <... symlink resumed>) = 0 [pid 5314] memfd_create("syzkaller", 0) = 3 [pid 5314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5313] close(4) = 0 [pid 5313] mkdir("./file0", 0777) = 0 [ 159.279630][ T5082] [ 159.279630][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.279630][ T5082] [ 159.293196][ T5082] [ 159.293196][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.293196][ T5082] [pid 5313] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] <... ioctl resumed>) = 0 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(3 [pid 5082] close(4 [pid 5313] <... mount resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5082] rmdir("./43/file0" [pid 5313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5313] chdir("./file0") = 0 [pid 5313] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5313] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5313] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5313] exit_group(0) = ? [pid 5313] +++ exited with 0 +++ [pid 5082] <... rmdir resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=31 /* 0.31 s */} --- [pid 5082] getdents64(3, [pid 5083] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, [pid 5082] close(3 [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5315 [pid 5083] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 159.332118][ T5313] [ 159.332118][ T5313] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.332118][ T5313] [pid 5082] <... close resumed>) = 0 [pid 5083] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5082] rmdir("./43" [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5315 attached [pid 5083] unlink("./43/binderfs" [pid 5082] mkdir("./44", 0777 [pid 5080] <... ioctl resumed>) = 0 [pid 5315] set_robust_list(0x55557f81b660, 24 [pid 5083] <... unlink resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5080] close(3 [pid 5315] <... set_robust_list resumed>) = 0 [pid 5083] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... close resumed>) = 0 [pid 5315] chdir("./44") = 0 [pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5315] setpgid(0, 0) = 0 [pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5316 attached [pid 5316] set_robust_list(0x55557f81b660, 24 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5316 [pid 5082] <... openat resumed>) = 3 [pid 5315] write(3, "1000", 4 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5315] <... write resumed>) = 4 [pid 5315] close(3) = 0 [pid 5315] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5315] memfd_create("syzkaller", 0 [pid 5316] <... set_robust_list resumed>) = 0 [pid 5315] <... memfd_create resumed>) = 3 [pid 5316] chdir("./44" [pid 5315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [ 159.409718][ T2445] [ 159.409718][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.409718][ T2445] [ 159.436165][ T2445] [ 159.436165][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.436165][ T2445] [ 159.450994][ T5083] [ 159.450994][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5316] <... chdir resumed>) = 0 [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5316] setpgid(0, 0) = 0 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5316] write(3, "1000", 4) = 4 [pid 5316] close(3) = 0 [pid 5316] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5316] memfd_create("syzkaller", 0) = 3 [ 159.450994][ T5083] [ 159.478219][ T112] [ 159.478219][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.478219][ T112] [ 159.498865][ T5083] [ 159.498865][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 159.498865][ T5083] [pid 5316] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./43/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5083] rmdir("./43") = 0 [pid 5083] mkdir("./44", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5314] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f81b650) = 5317 ./strace-static-x86_64: Process 5317 attached [pid 5317] set_robust_list(0x55557f81b660, 24) = 0 [pid 5317] chdir("./44") = 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] memfd_create("syzkaller", 0) = 3 [pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [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"..., 16777216 [pid 5316] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5318 attached [pid 5318] set_robust_list(0x55557f81b660, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5318 [pid 5318] <... set_robust_list resumed>) = 0 [pid 5318] chdir("./44") = 0 [pid 5318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5318] setpgid(0, 0) = 0 [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5318] write(3, "1000", 4) = 4 [pid 5318] close(3) = 0 [pid 5318] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5318] memfd_create("syzkaller", 0) = 3 [pid 5318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5314] <... write resumed>) = 16777216 [pid 5314] munmap(0x7f5a20600000, 138412032) = 0 [pid 5314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5314] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5314] close(3) = 0 [pid 5314] close(4) = 0 [pid 5314] mkdir("./file0", 0777) = 0 [pid 5314] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000") = 0 [pid 5314] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 160.308065][ T5314] loop0: detected capacity change from 0 to 32768 [ 160.344848][ T5314] [ 160.344848][ T5314] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.344848][ T5314] [pid 5314] chdir("./file0") = 0 [pid 5314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5314] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5314] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5314] exit_group(0) = ? [pid 5317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5314] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=25 /* 0.25 s */} --- [pid 5079] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./44/binderfs") = 0 [pid 5079] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5316] <... write resumed>) = 16777216 [ 160.463342][ T62] [ 160.463342][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.463342][ T62] [ 160.498814][ T62] [ 160.498814][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.498814][ T62] [pid 5316] munmap(0x7f5a20600000, 138412032) = 0 [pid 5316] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5316] ioctl(4, LOOP_SET_FD, 3 [pid 5315] <... write resumed>) = 16777216 [pid 5316] <... ioctl resumed>) = 0 [pid 5316] close(3 [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"..., 16777216 [pid 5316] <... close resumed>) = 0 [pid 5316] close(4) = 0 [pid 5316] mkdir("./file0", 0777 [pid 5315] munmap(0x7f5a20600000, 138412032 [pid 5316] <... mkdir resumed>) = 0 [ 160.534702][ T111] [ 160.534702][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.534702][ T111] [ 160.552228][ T5316] loop1: detected capacity change from 0 to 32768 [ 160.565362][ T5079] [ 160.565362][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.565362][ T5079] [pid 5316] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5315] <... munmap resumed>) = 0 [pid 5315] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5315] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5316] <... mount resumed>) = 0 [pid 5316] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5316] chdir("./file0") = 0 [pid 5316] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5316] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5316] getdents64(4, [pid 5315] close(3) = 0 [pid 5315] close(4) = 0 [pid 5315] mkdir("./file0", 0777) = 0 [pid 5315] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5316] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5316] exit_group(0) = ? [ 160.589566][ T5079] [ 160.589566][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.589566][ T5079] [ 160.612428][ T5316] [ 160.612428][ T5316] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.612428][ T5316] [ 160.628098][ T5315] loop2: detected capacity change from 0 to 32768 [pid 5316] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=37 /* 0.37 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5080] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./44/file0", [pid 5080] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./44/file0") = 0 [pid 5079] getdents64(3, [pid 5080] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] newfstatat(3, "", [pid 5079] close(3 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5079] <... close resumed>) = 0 [pid 5080] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] rmdir("./44" [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... rmdir resumed>) = 0 [pid 5080] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5079] mkdir("./45", 0777 [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5080] unlink("./44/binderfs" [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... unlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5080] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5315] <... mount resumed>) = 0 [pid 5315] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5315] chdir("./file0") = 0 [pid 5315] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5315] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5315] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [ 160.694718][ T5315] [ 160.694718][ T5315] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.694718][ T5315] [pid 5315] exit_group(0) = ? [pid 5315] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=33 /* 0.33 s */} --- [pid 5081] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5081] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./44/binderfs") = 0 [ 160.747984][ T62] [ 160.747984][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.747984][ T62] [ 160.760072][ T62] [ 160.760072][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.760072][ T62] [ 160.780612][ T2445] [ 160.780612][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.780612][ T2445] [ 160.791744][ T111] [ 160.791744][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.791744][ T111] [ 160.817625][ T2445] [ 160.817625][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.817625][ T2445] [ 160.828304][ T5080] [ 160.828304][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.828304][ T5080] [pid 5081] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... umount2 resumed>) = 0 [pid 5080] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5080] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4) = 0 [ 160.847566][ T5080] [ 160.847566][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.847566][ T5080] [ 160.860719][ T111] [ 160.860719][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.860719][ T111] [pid 5080] rmdir("./44/file0") = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] close(3) = 0 [pid 5080] rmdir("./44") = 0 [pid 5080] mkdir("./45", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5081] <... umount2 resumed>) = 0 [pid 5081] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5081] newfstatat(4, "", [pid 5317] <... write resumed>) = 16777216 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5317] munmap(0x7f5a20600000, 138412032 [ 160.899360][ T5081] [ 160.899360][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.899360][ T5081] [ 160.917990][ T5081] [ 160.917990][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 160.917990][ T5081] [pid 5081] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] close(4) = 0 [pid 5081] rmdir("./44/file0") = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [pid 5081] rmdir("./44") = 0 [pid 5081] mkdir("./45", 0777) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5317] <... munmap resumed>) = 0 [pid 5317] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5317] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5317] close(3) = 0 [pid 5317] close(4) = 0 [pid 5317] mkdir("./file0", 0777) = 0 [ 161.063277][ T5317] loop3: detected capacity change from 0 to 32768 [pid 5317] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5318] <... write resumed>) = 16777216 [pid 5317] <... mount resumed>) = 0 [pid 5318] munmap(0x7f5a20600000, 138412032 [ 161.130008][ T5317] [ 161.130008][ T5317] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.130008][ T5317] [pid 5317] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5079] <... ioctl resumed>) = 0 [pid 5317] chdir("./file0") = 0 [pid 5318] <... munmap resumed>) = 0 [pid 5317] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] close(3 [pid 5317] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] <... close resumed>) = 0 [pid 5318] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5318] ioctl(4, LOOP_SET_FD, 3 [pid 5317] openat(AT_FDCWD, ".", O_RDONLY [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5317] <... openat resumed>) = 4 [pid 5317] getdents64(4, [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5319 ./strace-static-x86_64: Process 5319 attached [pid 5317] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5317] exit_group(0 [pid 5319] set_robust_list(0x55557f81b660, 24 [pid 5317] <... exit_group resumed>) = ? [pid 5318] <... ioctl resumed>) = 0 [pid 5318] close(3) = 0 [pid 5318] close(4) = 0 [pid 5317] +++ exited with 0 +++ [pid 5319] <... set_robust_list resumed>) = 0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=29 /* 0.29 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...> [pid 5318] mkdir("./file0", 0777 [pid 5082] <... restart_syscall resumed>) = 0 [pid 5319] chdir("./45" [pid 5318] <... mkdir resumed>) = 0 [pid 5319] <... chdir resumed>) = 0 [pid 5082] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5318] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5319] <... prctl resumed>) = 0 [pid 5082] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5319] setpgid(0, 0 [pid 5082] <... openat resumed>) = 3 [pid 5319] <... setpgid resumed>) = 0 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] getdents64(3, [pid 5319] <... openat resumed>) = 3 [ 161.214960][ T5318] loop4: detected capacity change from 0 to 32768 [pid 5082] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5319] write(3, "1000", 4) = 4 [pid 5082] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5319] close(3) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5319] symlink("/dev/binderfs", "./binderfs" [pid 5082] unlink("./44/binderfs" [pid 5319] <... symlink resumed>) = 0 [pid 5082] <... unlink resumed>) = 0 [pid 5082] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5319] memfd_create("syzkaller", 0) = 3 [pid 5319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3 [pid 5318] <... mount resumed>) = 0 [pid 5318] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5080] <... close resumed>) = 0 [pid 5318] chdir("./file0") = 0 [pid 5318] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5318] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 161.269516][ T5318] [ 161.269516][ T5318] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.269516][ T5318] [ 161.286429][ T2436] [ 161.286429][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.286429][ T2436] [pid 5318] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5318] exit_group(0) = ? ./strace-static-x86_64: Process 5320 attached [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5320 [pid 5318] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5318, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=31 /* 0.31 s */} --- [pid 5083] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5083] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5320] set_robust_list(0x55557f81b660, 24 [pid 5083] unlink("./44/binderfs" [pid 5320] <... set_robust_list resumed>) = 0 [pid 5320] chdir("./45" [pid 5083] <... unlink resumed>) = 0 [pid 5320] <... chdir resumed>) = 0 [pid 5083] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5320] setpgid(0, 0) = 0 [ 161.323780][ T2436] [ 161.323780][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.323780][ T2436] [ 161.353397][ T112] [ 161.353397][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.353397][ T112] [ 161.368934][ T5082] [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 [ 161.368934][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.368934][ T5082] [ 161.369194][ T62] [ 161.369194][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.369194][ T62] [ 161.390178][ T5082] [ 161.390178][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.390178][ T5082] [ 161.417680][ T62] [pid 5320] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5320] memfd_create("syzkaller", 0) = 3 [pid 5320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5082] <... umount2 resumed>) = 0 [pid 5082] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, [pid 5081] close(3 [pid 5082] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] <... close resumed>) = 0 [pid 5082] close(4 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5321 attached [pid 5082] <... close resumed>) = 0 [pid 5082] rmdir("./44/file0" [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5321 [pid 5321] set_robust_list(0x55557f81b660, 24) = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5321] chdir("./45" [pid 5082] close(3) = 0 [pid 5082] rmdir("./44" [pid 5321] <... chdir resumed>) = 0 [pid 5082] <... rmdir resumed>) = 0 [pid 5082] mkdir("./45", 0777 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] <... mkdir resumed>) = 0 [pid 5321] <... prctl resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 161.417680][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.417680][ T62] [ 161.443510][ T111] [ 161.443510][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.443510][ T111] [ 161.468693][ T5083] [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5321] setpgid(0, 0) = 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5321] write(3, "1000", 4) = 4 [ 161.468693][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.468693][ T5083] [ 161.481104][ T5083] [ 161.481104][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 161.481104][ T5083] [pid 5321] close(3) = 0 [pid 5321] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5083] <... umount2 resumed>) = 0 [pid 5083] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./44/file0") = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5083] close(3) = 0 [pid 5321] memfd_create("syzkaller", 0) = 3 [pid 5321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5083] rmdir("./44") = 0 [pid 5083] mkdir("./45", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5083] ioctl(3, LOOP_CLR_FD [pid 5319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5082] <... ioctl resumed>) = 0 [pid 5082] close(3) = 0 [pid 5320] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] <... ioctl resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] close(3) = 0 [pid 5083] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5322 attached [pid 5082] <... clone resumed>, child_tidptr=0x55557f81b650) = 5322 [pid 5322] set_robust_list(0x55557f81b660, 24./strace-static-x86_64: Process 5323 attached ) = 0 [pid 5083] <... clone resumed>, child_tidptr=0x55557f81b650) = 5323 [pid 5323] set_robust_list(0x55557f81b660, 24) = 0 [pid 5323] chdir("./45") = 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] memfd_create("syzkaller", 0) = 3 [pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5322] chdir("./45") = 0 [pid 5322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5322] setpgid(0, 0) = 0 [pid 5322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5322] write(3, "1000", 4) = 4 [pid 5322] close(3) = 0 [pid 5322] symlink("/dev/binderfs", "./binderfs") = 0 [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"..., 16777216 [pid 5322] memfd_create("syzkaller", 0) = 3 [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5319] <... write resumed>) = 16777216 [pid 5323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5319] munmap(0x7f5a20600000, 138412032) = 0 [pid 5319] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5319] ioctl(4, LOOP_SET_FD, 3 [pid 5322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5319] <... ioctl resumed>) = 0 [pid 5319] close(3) = 0 [pid 5319] close(4 [pid 5320] <... write resumed>) = 16777216 [pid 5319] <... close resumed>) = 0 [pid 5319] mkdir("./file0", 0777) = 0 [pid 5319] mount("/dev/loop0", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [ 162.453211][ T5319] loop0: detected capacity change from 0 to 32768 [pid 5320] munmap(0x7f5a20600000, 138412032) = 0 [pid 5319] <... mount resumed>) = 0 [pid 5319] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5319] chdir("./file0") = 0 [pid 5319] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5319] openat(AT_FDCWD, ".", O_RDONLY [pid 5321] <... write resumed>) = 16777216 [pid 5320] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5319] <... openat resumed>) = 4 [pid 5320] <... openat resumed>) = 4 [pid 5319] getdents64(4, [pid 5321] munmap(0x7f5a20600000, 138412032 [pid 5320] ioctl(4, LOOP_SET_FD, 3 [pid 5319] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [ 162.530639][ T5319] [ 162.530639][ T5319] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.530639][ T5319] [pid 5319] exit_group(0) = ? [pid 5319] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=32 /* 0.32 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5320] <... ioctl resumed>) = 0 [pid 5320] close(3) = 0 [pid 5320] close(4 [pid 5079] getdents64(3, [pid 5320] <... close resumed>) = 0 [pid 5320] mkdir("./file0", 0777 [pid 5079] <... getdents64 resumed>0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5320] <... mkdir resumed>) = 0 [pid 5320] mount("/dev/loop1", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5079] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] unlink("./45/binderfs") = 0 [ 162.575618][ T5320] loop1: detected capacity change from 0 to 32768 [ 162.609087][ T5320] [ 162.609087][ T5320] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.609087][ T5320] [ 162.622191][ T2436] [pid 5079] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5321] <... munmap resumed>) = 0 [pid 5321] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5321] ioctl(4, LOOP_SET_FD, 3 [pid 5320] <... mount resumed>) = 0 [pid 5320] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5320] chdir("./file0") = 0 [pid 5320] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5320] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5321] <... ioctl resumed>) = 0 [pid 5320] getdents64(4, [pid 5321] close(3 [pid 5320] <... getdents64 resumed>NULL, 0) = -1 EINVAL (Invalid argument) [pid 5321] <... close resumed>) = 0 [pid 5320] exit_group(0 [pid 5321] close(4 [pid 5320] <... exit_group resumed>) = ? [ 162.622191][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.622191][ T2436] [ 162.638794][ T5321] loop2: detected capacity change from 0 to 32768 [pid 5321] <... close resumed>) = 0 [pid 5320] +++ exited with 0 +++ [pid 5321] mkdir("./file0", 0777 [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5320, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=26 /* 0.26 s */} --- [pid 5321] <... mkdir resumed>) = 0 [pid 5321] mount("/dev/loop2", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5080] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5080] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5080] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] unlink("./45/binderfs") = 0 [ 162.668530][ T2436] [ 162.668530][ T2436] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.668530][ T2436] [ 162.686729][ T5321] [ 162.686729][ T5321] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.686729][ T5321] [ 162.693189][ T5079] [ 162.693189][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.693189][ T5079] [ 162.708681][ T2445] [ 162.708681][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [pid 5080] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5321] <... mount resumed>) = 0 [pid 5321] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5321] chdir("./file0") = 0 [pid 5321] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5321] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5321] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5321] exit_group(0) = ? [pid 5321] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=29 /* 0.29 s */} --- [ 162.708681][ T2445] [ 162.728233][ T2445] [ 162.728233][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.728233][ T2445] [ 162.758779][ T111] [ 162.758779][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.758779][ T111] [pid 5081] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5081] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5081] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5081] unlink("./45/binderfs") = 0 [ 162.767898][ T5079] [ 162.767898][ T5079] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.767898][ T5079] [ 162.769615][ T5080] [ 162.769615][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.769615][ T5080] [ 162.792816][ T112] [ 162.792816][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.792816][ T112] [ 162.809876][ T2445] [ 162.809876][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.809876][ T2445] [pid 5081] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] newfstatat(AT_FDCWD, "./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5079] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 162.852066][ T2445] [ 162.852066][ T2445] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.852066][ T2445] [ 162.865569][ T5080] [ 162.865569][ T5080] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.865569][ T5080] [ 162.874184][ T111] [ 162.874184][ T111] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.874184][ T111] [ 162.894614][ T5081] [pid 5079] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5079] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./45/file0" [pid 5322] <... write resumed>) = 16777216 [pid 5322] munmap(0x7f5a20600000, 138412032 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5080] <... umount2 resumed>) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./45") = 0 [pid 5080] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] mkdir("./46", 0777) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5323] <... write resumed>) = 16777216 [pid 5322] <... munmap resumed>) = 0 [pid 5081] <... umount2 resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] newfstatat(AT_FDCWD, "./45/file0", [pid 5323] munmap(0x7f5a20600000, 138412032 [pid 5322] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 162.894614][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.894614][ T5081] [ 162.917654][ T5081] [ 162.917654][ T5081] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 162.917654][ T5081] [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5081] newfstatat(AT_FDCWD, "./45/file0", [pid 5080] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5322] <... openat resumed>) = 4 [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... openat resumed>) = 4 [pid 5322] ioctl(4, LOOP_SET_FD, 3 [pid 5081] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] newfstatat(4, "", [pid 5081] <... openat resumed>) = 4 [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] newfstatat(4, "", [pid 5080] getdents64(4, [pid 5081] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(4, [pid 5080] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5080] getdents64(4, [pid 5081] getdents64(4, [pid 5080] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5081] <... getdents64 resumed>0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5080] close(4 [pid 5081] close(4 [pid 5080] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5081] rmdir("./45/file0" [pid 5080] rmdir("./45/file0") = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5081] getdents64(3, [pid 5323] <... munmap resumed>) = 0 [pid 5322] <... ioctl resumed>) = 0 [pid 5080] getdents64(3, [pid 5323] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5322] close(3 [pid 5081] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5323] <... openat resumed>) = 4 [pid 5081] close(3 [pid 5080] <... getdents64 resumed>0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5323] ioctl(4, LOOP_SET_FD, 3 [pid 5081] <... close resumed>) = 0 [pid 5080] close(3 [pid 5322] <... close resumed>) = 0 [pid 5322] close(4 [pid 5323] <... ioctl resumed>) = 0 [pid 5081] rmdir("./45" [pid 5080] <... close resumed>) = 0 [pid 5081] <... rmdir resumed>) = 0 [pid 5323] close(3 [pid 5322] <... close resumed>) = 0 [pid 5080] rmdir("./45") = 0 [pid 5080] mkdir("./46", 0777) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5081] mkdir("./46", 0777 [pid 5323] <... close resumed>) = 0 [pid 5322] mkdir("./file0", 0777 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5322] <... mkdir resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5323] close(4 [ 162.959987][ T5322] loop3: detected capacity change from 0 to 32768 [ 162.978637][ T5323] loop4: detected capacity change from 0 to 32768 [pid 5322] mount("/dev/loop3", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5323] <... close resumed>) = 0 [pid 5323] mkdir("./file0", 0777 [pid 5081] <... openat resumed>) = 3 [pid 5323] <... mkdir resumed>) = 0 [pid 5323] mount("/dev/loop4", "./file0", "jfs", 0, "iocharset=maccroatian,discard=0x00000000000000" [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5322] <... mount resumed>) = 0 [pid 5322] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5322] chdir("./file0") = 0 [pid 5322] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5322] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5322] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5322] exit_group(0) = ? [pid 5322] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5322, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=28 /* 0.28 s */} --- [pid 5082] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 163.027502][ T5322] [ 163.027502][ T5322] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.027502][ T5322] [pid 5082] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5082] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [pid 5082] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] unlink("./45/binderfs") = 0 [ 163.079533][ T5323] [ 163.079533][ T5323] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.079533][ T5323] [pid 5323] <... mount resumed>) = 0 [pid 5082] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5323] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5323] chdir("./file0") = 0 [pid 5323] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5323] openat(AT_FDCWD, ".", O_RDONLY) = 4 [pid 5323] getdents64(4, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5323] exit_group(0) = ? [pid 5323] +++ exited with 0 +++ [pid 5083] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=43 /* 0.43 s */} --- [pid 5083] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5083] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 4 entries */, 32768) = 112 [ 163.167741][ T62] [ 163.167741][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.167741][ T62] [ 163.185846][ T62] [ 163.185846][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.185846][ T62] [ 163.210535][ T112] [pid 5083] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] unlink("./45/binderfs") = 0 [ 163.210535][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.210535][ T112] [ 163.225326][ T62] [ 163.225326][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.225326][ T62] [ 163.236465][ T5082] [ 163.236465][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.236465][ T5082] [ 163.257470][ T62] [ 163.257470][ T62] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.257470][ T62] [ 163.268803][ T5082] [ 163.268803][ T5082] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.268803][ T5082] [ 163.287729][ T5083] [ 163.287729][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.287729][ T5083] [ 163.298950][ T5083] [ 163.298950][ T5083] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.298950][ T5083] [pid 5083] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = 0 [pid 5082] <... umount2 resumed>) = 0 [pid 5079] close(3 [pid 5082] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5082] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] newfstatat(AT_FDCWD, "./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5082] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5082] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5082] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5082] close(4) = 0 [pid 5082] rmdir("./45/file0"./strace-static-x86_64: Process 5324 attached ) = 0 [pid 5080] close(3 [pid 5082] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55557f81b650) = 5324 [pid 5082] close(3) = 0 [pid 5082] rmdir("./45") = 0 [ 163.317824][ T112] [ 163.317824][ T112] ... Log Wrap ... Log Wrap ... Log Wrap ... [ 163.317824][ T112] [ 163.353611][ T112] ================================================================== [ 163.361730][ T112] BUG: KASAN: slab-use-after-free in txEnd+0x354/0x560 [pid 5083] <... umount2 resumed>) = 0 [pid 5082] mkdir("./46", 0777 [pid 5324] set_robust_list(0x55557f81b660, 24 [pid 5081] <... ioctl resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5081] close(3 [pid 5082] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5082] ioctl(3, LOOP_CLR_FD [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5083] newfstatat(AT_FDCWD, "./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5083] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5081] <... clone resumed>, child_tidptr=0x55557f81b650) = 5325 [pid 5083] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5083] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5083] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5083] getdents64(4, 0x55557f824730 /* 2 entries */, 32768) = 48 [pid 5083] getdents64(4, 0x55557f824730 /* 0 entries */, 32768) = 0 [pid 5083] close(4) = 0 [pid 5083] rmdir("./45/file0") = 0 [ 163.368723][ T112] Write of size 8 at addr ffff88802f3b9840 by task jfsCommit/112 [ 163.376458][ T112] [ 163.378794][ T112] CPU: 1 PID: 112 Comm: jfsCommit Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0 [ 163.389150][ T112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 163.399235][ T112] Call Trace: [ 163.402536][ T112] [ 163.405496][ T112] dump_stack_lvl+0x241/0x360 [ 163.410223][ T112] ? __pfx_dump_stack_lvl+0x10/0x10 [ 163.415876][ T112] ? __pfx__printk+0x10/0x10 [ 163.420481][ T112] ? _printk+0xd5/0x120 [ 163.424651][ T112] ? __virt_addr_valid+0x183/0x520 [ 163.429778][ T112] ? __virt_addr_valid+0x183/0x520 [ 163.434922][ T112] print_report+0x169/0x550 [ 163.439450][ T112] ? __virt_addr_valid+0x183/0x520 [ 163.444571][ T112] ? __virt_addr_valid+0x183/0x520 [ 163.449691][ T112] ? __virt_addr_valid+0x44e/0x520 [ 163.454813][ T112] ? __phys_addr+0xba/0x170 [ 163.459325][ T112] ? txEnd+0x354/0x560 [ 163.463404][ T112] kasan_report+0x143/0x180 [ 163.467917][ T112] ? txEnd+0x354/0x560 [ 163.471995][ T112] kasan_check_range+0x282/0x290 [ 163.477032][ T112] txEnd+0x354/0x560 [ 163.480939][ T112] jfs_lazycommit+0x634/0xb80 [ 163.485626][ T112] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 163.491538][ T112] ? lockdep_hardirqs_on+0x99/0x150 [ 163.496769][ T112] ? __pfx_jfs_lazycommit+0x10/0x10 [ 163.502000][ T112] ? __pfx_default_wake_function+0x10/0x10 [ 163.507824][ T112] ? __kthread_parkme+0x169/0x1d0 [ 163.512853][ T112] ? __pfx_jfs_lazycommit+0x10/0x10 [ 163.518057][ T112] kthread+0x2f0/0x390 [ 163.522142][ T112] ? __pfx_jfs_lazycommit+0x10/0x10 [ 163.527353][ T112] ? __pfx_kthread+0x10/0x10 [ 163.531995][ T112] ret_from_fork+0x4b/0x80 [ 163.536426][ T112] ? __pfx_kthread+0x10/0x10 [ 163.541027][ T112] ret_from_fork_asm+0x1a/0x30 [ 163.545807][ T112] [ 163.548836][ T112] [ 163.551157][ T112] Allocated by task 5323: [ 163.555478][ T112] kasan_save_track+0x3f/0x80 [ 163.560162][ T112] __kasan_kmalloc+0x98/0xb0 [ 163.564757][ T112] kmalloc_trace+0x1db/0x360 [ 163.569360][ T112] lmLogOpen+0x320/0x1040 [ 163.573693][ T112] jfs_mount_rw+0xf1/0x6a0 [ 163.578113][ T112] jfs_fill_super+0x681/0xc50 [ 163.582792][ T112] mount_bdev+0x20a/0x2d0 [ 163.587137][ T112] legacy_get_tree+0xee/0x190 [ 163.591820][ T112] vfs_get_tree+0x90/0x2a0 [ 163.596238][ T112] do_new_mount+0x2be/0xb40 [ 163.600767][ T112] __se_sys_mount+0x2d9/0x3c0 [ 163.605483][ T112] do_syscall_64+0xf5/0x240 [ 163.610014][ T112] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 163.615924][ T112] [ 163.618255][ T112] Freed by task 5083: [ 163.622233][ T112] kasan_save_track+0x3f/0x80 [ 163.627005][ T112] kasan_save_free_info+0x40/0x50 [ 163.632102][ T112] poison_slab_object+0xa6/0xe0 [ 163.636974][ T112] __kasan_slab_free+0x37/0x60 [ 163.641764][ T112] kfree+0x153/0x3a0 [ 163.645666][ T112] lmLogClose+0x2a1/0x530 [ 163.650010][ T112] jfs_umount+0x2ce/0x3a0 [ 163.654357][ T112] jfs_put_super+0x8a/0x190 [ 163.658879][ T112] generic_shutdown_super+0x136/0x2d0 [ 163.664360][ T112] kill_block_super+0x44/0x90 [ 163.669058][ T112] deactivate_locked_super+0xc4/0x130 [ 163.674442][ T112] cleanup_mnt+0x426/0x4c0 [ 163.678873][ T112] task_work_run+0x24f/0x310 [ 163.683484][ T112] ptrace_notify+0x2d2/0x380 [ 163.688094][ T112] syscall_exit_work+0xc6/0x190 [ 163.692950][ T112] syscall_exit_to_user_mode+0x273/0x370 [ 163.698609][ T112] do_syscall_64+0x102/0x240 [ 163.703208][ T112] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 163.709123][ T112] [ 163.711449][ T112] The buggy address belongs to the object at ffff88802f3b9800 [ 163.711449][ T112] which belongs to the cache kmalloc-1k of size 1024 [ 163.725514][ T112] The buggy address is located 64 bytes inside of [ 163.725514][ T112] freed 1024-byte region [ffff88802f3b9800, ffff88802f3b9c00) [ 163.739333][ T112] [ 163.741679][ T112] The buggy address belongs to the physical page: [ 163.748094][ T112] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802f3bb000 pfn:0x2f3b8 [ 163.758160][ T112] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 163.765715][ T112] flags: 0xfff80000000840(slab|head|node=0|zone=1|lastcpupid=0xfff) [ 163.773698][ T112] page_type: 0xffffffff() [ 163.778043][ T112] raw: 00fff80000000840 ffff888015041dc0 ffffea0000b89000 dead000000000002 [ 163.786638][ T112] raw: ffff88802f3bb000 000000008010000e 00000001ffffffff 0000000000000000 [ 163.795243][ T112] head: 00fff80000000840 ffff888015041dc0 ffffea0000b89000 dead000000000002 [ 163.803926][ T112] head: ffff88802f3bb000 000000008010000e 00000001ffffffff 0000000000000000 [ 163.812688][ T112] head: 00fff80000000003 ffffea0000bcee01 dead000000000122 00000000ffffffff [ 163.821366][ T112] head: 0000000800000000 0000000000000000 00000000ffffffff 0000000000000000 [ 163.830045][ T112] page dumped because: kasan: bad access detected [ 163.836478][ T112] page_owner tracks the page as allocated [ 163.842195][ T112] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid -1541651264 (swapper/0), ts 1, free_ts 0 [ 163.861913][ T112] post_alloc_hook+0x1ea/0x210 [ 163.866695][ T112] get_page_from_freelist+0x3410/0x35b0 [ 163.872257][ T112] __alloc_pages+0x256/0x6c0 [ 163.876859][ T112] alloc_slab_page+0x5f/0x160 [ 163.881559][ T112] new_slab+0x84/0x2f0 [ 163.885646][ T112] ___slab_alloc+0xc73/0x1260 [ 163.890326][ T112] __kmalloc+0x2e5/0x4a0 [ 163.894576][ T112] public_key_verify_signature+0x288/0x790 [ 163.900391][ T112] x509_check_for_self_signed+0x324/0x420 [ 163.906116][ T112] x509_cert_parse+0x5b9/0x7c0 [ 163.910891][ T112] x509_key_preparse+0x65/0x680 [ 163.915748][ T112] asymmetric_key_preparse+0xb5/0x160 [ 163.921121][ T112] __key_create_or_update+0x481/0xc70 [ 163.926503][ T112] key_create_or_update+0x42/0x60 [ 163.931529][ T112] x509_load_certificate_list+0x149/0x270 [ 163.937260][ T112] __integrity_init_keyring+0x19f/0x2e0 [ 163.942831][ T112] page_owner free stack trace missing [ 163.948192][ T112] [ 163.950534][ T112] Memory state around the buggy address: [ 163.956173][ T112] ffff88802f3b9700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 163.964247][ T112] ffff88802f3b9780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 163.972314][ T112] >ffff88802f3b9800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 163.980378][ T112] ^ [ 163.986535][ T112] ffff88802f3b9880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 163.994609][ T112] ffff88802f3b9900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 164.002674][ T112] ================================================================== [ 164.011373][ T112] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 164.018619][ T112] CPU: 0 PID: 112 Comm: jfsCommit Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0 [ 164.028553][ T112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 164.038633][ T112] Call Trace: [ 164.041935][ T112] [ 164.044906][ T112] dump_stack_lvl+0x241/0x360 [ 164.049638][ T112] ? __pfx_dump_stack_lvl+0x10/0x10 [ 164.054879][ T112] ? __pfx__printk+0x10/0x10 [ 164.059503][ T112] ? preempt_schedule+0xe1/0xf0 [ 164.064389][ T112] ? vscnprintf+0x5d/0x90 [ 164.068749][ T112] panic+0x349/0x860 [ 164.072681][ T112] ? check_panic_on_warn+0x21/0xb0 [ 164.077830][ T112] ? __pfx_panic+0x10/0x10 [ 164.082287][ T112] ? _raw_spin_unlock_irqrestore+0x130/0x140 [ 164.088299][ T112] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 164.094675][ T112] ? print_report+0x502/0x550 [ 164.099388][ T112] check_panic_on_warn+0x86/0xb0 [ 164.104366][ T112] ? txEnd+0x354/0x560 [ 164.108555][ T112] end_report+0x77/0x160 [ 164.112837][ T112] kasan_report+0x154/0x180 [ 164.117374][ T112] ? txEnd+0x354/0x560 [pid 5083] getdents64(3, 0x55557f81c6f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5325 attached [pid 5324] <... set_robust_list resumed>) = 0 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5325] set_robust_list(0x55557f81b660, 24 [pid 5324] chdir("./46" [pid 5325] <... set_robust_list resumed>) = 0 [pid 5324] <... chdir resumed>) = 0 [pid 5080] <... clone resumed>, child_tidptr=0x55557f81b650) = 5326 [pid 5325] chdir("./46" [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5325] <... chdir resumed>) = 0 [pid 5324] <... prctl resumed>) = 0 [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5324] setpgid(0, 0 [pid 5325] <... prctl resumed>) = 0 [pid 5324] <... setpgid resumed>) = 0 [pid 5325] setpgid(0, 0 [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5325] <... setpgid resumed>) = 0 [pid 5324] <... openat resumed>) = 3 [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5324] write(3, "1000", 4 [pid 5325] <... openat resumed>) = 3 [pid 5324] <... write resumed>) = 4 [pid 5325] write(3, "1000", 4 [pid 5324] close(3 [pid 5325] <... write resumed>) = 4 [pid 5324] <... close resumed>) = 0 [pid 5325] close(3 [pid 5324] symlink("/dev/binderfs", "./binderfs" [pid 5325] <... close resumed>) = 0 [pid 5324] <... symlink resumed>) = 0 [pid 5325] symlink("/dev/binderfs", "./binderfs" [pid 5324] memfd_create("syzkaller", 0 [pid 5325] <... symlink resumed>) = 0 [pid 5324] <... memfd_create resumed>) = 3 [pid 5325] memfd_create("syzkaller", 0 [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5325] <... memfd_create resumed>) = 3 [pid 5324] <... mmap resumed>) = 0x7f5a20600000 [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5a20600000 [pid 5083] close(3) = 0 [pid 5083] rmdir("./45") = 0 [pid 5083] mkdir("./46", 0777) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 164.121491][ T112] kasan_check_range+0x282/0x290 [ 164.126465][ T112] txEnd+0x354/0x560 [ 164.130400][ T112] jfs_lazycommit+0x634/0xb80 [ 164.135116][ T112] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 164.141053][ T112] ? lockdep_hardirqs_on+0x99/0x150 [ 164.146293][ T112] ? __pfx_jfs_lazycommit+0x10/0x10 [ 164.151531][ T112] ? __pfx_default_wake_function+0x10/0x10 [ 164.157381][ T112] ? __kthread_parkme+0x169/0x1d0 [ 164.162438][ T112] ? __pfx_jfs_lazycommit+0x10/0x10 [ 164.167675][ T112] kthread+0x2f0/0x390 [ 164.171782][ T112] ? __pfx_jfs_lazycommit+0x10/0x10 [ 164.177023][ T112] ? __pfx_kthread+0x10/0x10 [ 164.181677][ T112] ret_from_fork+0x4b/0x80 [ 164.186133][ T112] ? __pfx_kthread+0x10/0x10 [ 164.190753][ T112] ret_from_fork_asm+0x1a/0x30 [ 164.195559][ T112] [ 164.198798][ T112] Kernel Offset: disabled [ 164.203122][ T112] Rebooting in 86400 seconds..