./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1145698694 <...> Warning: Permanently added '10.128.0.90' (ED25519) to the list of known hosts. execve("./syz-executor1145698694", ["./syz-executor1145698694"], 0x7ffdfcd15850 /* 10 vars */) = 0 brk(NULL) = 0x55557b4d6000 brk(0x55557b4d6d00) = 0x55557b4d6d00 arch_prctl(ARCH_SET_FS, 0x55557b4d6380) = 0 set_tid_address(0x55557b4d6650) = 5828 set_robust_list(0x55557b4d6660, 24) = 0 rseq(0x55557b4d6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1145698694", 4096) = 28 getrandom("\xe4\x55\x16\xad\x98\xdb\xc2\x35", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557b4d6d00 brk(0x55557b4f7d00) = 0x55557b4f7d00 brk(0x55557b4f8000) = 0x55557b4f8000 mprotect(0x7f07673e9000, 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 5829 attached , child_tidptr=0x55557b4d6650) = 5829 [pid 5829] set_robust_list(0x55557b4d6660, 24 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5829] <... set_robust_list resumed>) = 0 [pid 5829] mkdir("./syzkaller.2pOxZa", 0700./strace-static-x86_64: Process 5830 attached [pid 5828] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5830 [pid 5830] set_robust_list(0x55557b4d6660, 24 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] <... set_robust_list resumed>) = 0 [pid 5829] <... mkdir resumed>) = 0 [pid 5830] mkdir("./syzkaller.h9J0ee", 0700 [pid 5829] chmod("./syzkaller.2pOxZa", 0777) = 0 ./strace-static-x86_64: Process 5831 attached [pid 5829] chdir("./syzkaller.2pOxZa" [pid 5831] set_robust_list(0x55557b4d6660, 24 [pid 5830] <... mkdir resumed>) = 0 [pid 5829] <... chdir resumed>) = 0 [pid 5828] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5831 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] <... set_robust_list resumed>) = 0 [pid 5830] chmod("./syzkaller.h9J0ee", 0777 [pid 5831] mkdir("./syzkaller.OMjTsV", 0700 [pid 5830] <... chmod resumed>) = 0 [pid 5829] mkdir("./0", 0777./strace-static-x86_64: Process 5832 attached [pid 5828] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5832 [pid 5830] chdir("./syzkaller.h9J0ee" [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5832] set_robust_list(0x55557b4d6660, 24 [pid 5831] <... mkdir resumed>) = 0 [pid 5830] <... chdir resumed>) = 0 [pid 5829] <... mkdir resumed>) = 0 [pid 5832] <... set_robust_list resumed>) = 0 [pid 5831] chmod("./syzkaller.OMjTsV", 0777 [pid 5830] mkdir("./0", 0777 [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5833 attached [pid 5833] set_robust_list(0x55557b4d6660, 24 [pid 5828] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5833 [pid 5832] getrandom( [pid 5831] <... chmod resumed>) = 0 [pid 5830] <... mkdir resumed>) = 0 [pid 5829] <... openat resumed>) = 3 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] <... set_robust_list resumed>) = 0 [pid 5832] <... getrandom resumed>"\x15\x0f\x87\x79\xc2\x94\x8c\xdb", 8, GRND_NONBLOCK) = 8 [pid 5831] chdir("./syzkaller.OMjTsV" [pid 5830] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5829] ioctl(3, LOOP_CLR_FD [pid 5833] mkdir("./syzkaller.HZKfHW", 0700./strace-static-x86_64: Process 5834 attached [pid 5832] mkdir("./syzkaller.3Btxig", 0700 [pid 5831] <... chdir resumed>) = 0 [pid 5829] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5834] set_robust_list(0x55557b4d6660, 24 [pid 5833] <... mkdir resumed>) = 0 [pid 5830] <... openat resumed>) = 3 [pid 5829] close(3 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5830] ioctl(3, LOOP_CLR_FD [pid 5829] <... close resumed>) = 0 [pid 5832] <... mkdir resumed>) = 0 [pid 5831] mkdir("./0", 0777 [pid 5833] chmod("./syzkaller.HZKfHW", 0777 [pid 5834] mkdir("./syzkaller.DcgOHI", 0700 [pid 5830] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] close(3./strace-static-x86_64: Process 5835 attached [pid 5828] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5834 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... chmod resumed>) = 0 [pid 5832] chmod("./syzkaller.3Btxig", 0777 [pid 5831] <... mkdir resumed>) = 0 [pid 5830] <... close resumed>) = 0 [pid 5835] set_robust_list(0x55557b4d6660, 24 [pid 5834] chmod("./syzkaller.DcgOHI", 0777 [pid 5832] <... chmod resumed>) = 0 [pid 5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5829] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5835 ./strace-static-x86_64: Process 5837 attached [pid 5835] <... set_robust_list resumed>) = 0 [pid 5833] chdir("./syzkaller.HZKfHW" [pid 5831] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5837] set_robust_list(0x55557b4d6660, 24 [pid 5833] <... chdir resumed>) = 0 [pid 5837] <... set_robust_list resumed>) = 0 [pid 5835] chdir("./0" [pid 5834] <... chmod resumed>) = 0 [pid 5833] mkdir("./0", 0777 [pid 5832] chdir("./syzkaller.3Btxig" [pid 5831] <... openat resumed>) = 3 [pid 5830] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5837 [pid 5837] chdir("./0" [pid 5835] <... chdir resumed>) = 0 [pid 5834] chdir("./syzkaller.DcgOHI" [pid 5833] <... mkdir resumed>) = 0 [pid 5837] <... chdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5831] ioctl(3, LOOP_CLR_FD [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] <... chdir resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5832] <... chdir resumed>) = 0 [pid 5831] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5837] <... prctl resumed>) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5837] setpgid(0, 0 [pid 5835] <... prctl resumed>) = 0 [pid 5834] mkdir("./0", 0777 [pid 5833] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5832] mkdir("./0", 0777 [pid 5831] close(3 [pid 5837] <... setpgid resumed>) = 0 [pid 5835] setpgid(0, 0 [pid 5833] close(3) = 0 [pid 5832] <... mkdir resumed>) = 0 [pid 5831] <... close resumed>) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5838 attached [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5838] set_robust_list(0x55557b4d6660, 24) = 0 ./strace-static-x86_64: Process 5839 attached [pid 5838] chdir("./0" [pid 5837] <... openat resumed>) = 3 [pid 5835] <... setpgid resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5838 [pid 5832] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5831] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5839 [pid 5838] <... chdir resumed>) = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5832] <... openat resumed>) = 3 [pid 5838] <... prctl resumed>) = 0 [pid 5837] write(3, "1000", 4 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5839] set_robust_list(0x55557b4d6660, 24 [pid 5838] setpgid(0, 0 [pid 5837] <... write resumed>) = 4 [pid 5832] ioctl(3, LOOP_CLR_FD [pid 5834] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5839] <... set_robust_list resumed>) = 0 [pid 5838] <... setpgid resumed>) = 0 [pid 5837] close(3 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] <... close resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5832] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5839] chdir("./0" [pid 5837] symlink("/dev/binderfs", "./binderfs" [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5835] <... openat resumed>) = 3 [pid 5839] <... chdir resumed>) = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] write(3, "1000", 4executing program executing program [pid 5834] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5832] close(3 [pid 5839] <... prctl resumed>) = 0 [pid 5835] <... write resumed>) = 4 [pid 5834] close(3 [pid 5832] <... close resumed>) = 0 [pid 5839] setpgid(0, 0 [pid 5834] <... close resumed>) = 0 [pid 5839] <... setpgid resumed>) = 0 [pid 5835] close(3 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5838] <... openat resumed>) = 3 [pid 5837] <... symlink resumed>) = 0 [pid 5838] write(3, "1000", 4 [pid 5837] write(1, "executing program\n", 18 [pid 5838] <... write resumed>) = 4 [pid 5837] <... write resumed>) = 18 ./strace-static-x86_64: Process 5840 attached [pid 5838] close(3) = 0 [pid 5840] set_robust_list(0x55557b4d6660, 24 [pid 5838] symlink("/dev/binderfs", "./binderfs" [pid 5837] memfd_create("syzkaller", 0 [pid 5838] <... symlink resumed>) = 0 [pid 5840] <... set_robust_list resumed>) = 0 [pid 5837] <... memfd_create resumed>) = 3 [pid 5840] chdir("./0" [pid 5838] write(1, "executing program\n", 18 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] <... chdir resumed>) = 0 [pid 5838] <... write resumed>) = 18 [pid 5837] <... mmap resumed>) = 0x7f075ee00000 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5838] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5841 attached [pid 5840] <... prctl resumed>) = 0 [pid 5839] <... openat resumed>) = 3 [pid 5838] <... memfd_create resumed>) = 3 [pid 5835] <... close resumed>) = 0 [pid 5834] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5840 [pid 5832] <... clone resumed>, child_tidptr=0x55557b4d6650) = 5841 [pid 5839] write(3, "1000", 4 [pid 5835] symlink("/dev/binderfs", "./binderfs" [pid 5839] <... write resumed>) = 4 [pid 5840] setpgid(0, 0 [pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] <... setpgid resumed>) = 0 [pid 5839] close(3 [pid 5838] <... mmap resumed>) = 0x7f075ee00000 [pid 5835] <... symlink resumed>) = 0 [pid 5841] set_robust_list(0x55557b4d6660, 24) = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5839] <... close resumed>) = 0 executing program [pid 5835] write(1, "executing program\n", 18 [pid 5839] symlink("/dev/binderfs", "./binderfs" [pid 5835] <... write resumed>) = 18 [pid 5841] chdir("./0" [pid 5839] <... symlink resumed>) = 0 [pid 5835] memfd_create("syzkaller", 0 [pid 5841] <... chdir resumed>) = 0 [pid 5840] <... openat resumed>) = 3 [pid 5835] <... memfd_create resumed>) = 3 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5840] write(3, "1000", 4 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program [pid 5840] <... write resumed>) = 4 [pid 5835] <... mmap resumed>) = 0x7f075ee00000 [pid 5840] close(3) = 0 [pid 5840] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5840] write(1, "executing program\n", 18) = 18 [pid 5840] memfd_create("syzkaller", 0) = 3 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5841] <... prctl resumed>) = 0 [pid 5840] <... mmap resumed>) = 0x7f075ee00000 executing program [pid 5841] setpgid(0, 0 [pid 5839] write(1, "executing program\n", 18 [pid 5841] <... setpgid resumed>) = 0 [pid 5839] <... write resumed>) = 18 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5839] memfd_create("syzkaller", 0 [pid 5841] <... openat resumed>) = 3 [pid 5839] <... memfd_create resumed>) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f075ee00000 [pid 5841] close(3) = 0 [pid 5841] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5841] memfd_create("syzkaller", 0) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f075ee00000 [pid 5837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5838] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5838] <... write resumed>) = 16777216 [pid 5838] munmap(0x7f075ee00000, 138412032 [pid 5837] <... write resumed>) = 16777216 [pid 5837] munmap(0x7f075ee00000, 138412032 [pid 5838] <... munmap resumed>) = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5838] ioctl(4, LOOP_SET_FD, 3 [pid 5840] <... write resumed>) = 16777216 [pid 5840] munmap(0x7f075ee00000, 138412032 [pid 5837] <... munmap resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5837] ioctl(4, LOOP_SET_FD, 3 [pid 5839] <... write resumed>) = 16777216 [pid 5838] <... ioctl resumed>) = 0 [pid 5841] <... write resumed>) = 16777216 [pid 5839] munmap(0x7f075ee00000, 138412032 [pid 5838] close(3 [pid 5837] <... ioctl resumed>) = 0 [pid 5838] <... close resumed>) = 0 [pid 5838] close(4) = 0 [pid 5840] <... munmap resumed>) = 0 [pid 5841] munmap(0x7f075ee00000, 138412032 [pid 5838] mkdir("./file0", 0777 [pid 5837] close(3 [pid 5835] <... write resumed>) = 16777216 [pid 5837] <... close resumed>) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5838] <... mkdir resumed>) = 0 [pid 5837] close(4 [pid 5838] mount("/dev/loop4", "./file0", "jfs", MS_NOSUID|MS_STRICTATIME, "nointegrity,iocharset=iso8859-7,usrquota,discard,iocharset=cp936,gid=0x000000000000ee00,grpquota,quo"... [pid 5837] <... close resumed>) = 0 [ 73.452662][ T5838] loop4: detected capacity change from 0 to 32768 [ 73.470479][ T5837] loop1: detected capacity change from 0 to 32768 [pid 5840] <... openat resumed>) = 4 [pid 5840] ioctl(4, LOOP_SET_FD, 3 [pid 5837] mkdir("./file0", 0777) = 0 [pid 5837] mount("/dev/loop1", "./file0", "jfs", MS_NOSUID|MS_STRICTATIME, "nointegrity,iocharset=iso8859-7,usrquota,discard,iocharset=cp936,gid=0x000000000000ee00,grpquota,quo"... [pid 5835] munmap(0x7f075ee00000, 138412032 [pid 5839] <... munmap resumed>) = 0 [pid 5838] <... mount resumed>) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5838] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5839] ioctl(4, LOOP_SET_FD, 3 [pid 5838] <... openat resumed>) = 3 [pid 5838] chdir("./file0") = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5840] <... ioctl resumed>) = 0 [pid 5837] <... mount resumed>) = 0 [pid 5840] close(3 [pid 5841] <... munmap resumed>) = 0 [pid 5839] <... ioctl resumed>) = 0 [pid 5835] <... munmap resumed>) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5840] <... close resumed>) = 0 [pid 5839] close(3 [pid 5838] exit_group(0 [pid 5837] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5841] <... openat resumed>) = 4 [pid 5840] close(4 [pid 5839] <... close resumed>) = 0 [pid 5838] <... exit_group resumed>) = ? [pid 5837] <... openat resumed>) = 3 [pid 5835] <... openat resumed>) = 4 [pid 5841] ioctl(4, LOOP_SET_FD, 3 [pid 5840] <... close resumed>) = 0 [ 73.504976][ T5840] loop5: detected capacity change from 0 to 32768 [ 73.535110][ T5839] loop2: detected capacity change from 0 to 32768 [pid 5839] close(4 [pid 5837] chdir("./file0" [pid 5841] <... ioctl resumed>) = 0 [pid 5840] mkdir("./file0", 0777 [pid 5839] <... close resumed>) = 0 [pid 5838] +++ exited with 0 +++ [pid 5835] ioctl(4, LOOP_SET_FD, 3 [pid 5840] <... mkdir resumed>) = 0 [pid 5839] mkdir("./file0", 0777 [pid 5837] <... chdir resumed>) = 0 [pid 5840] mount("/dev/loop5", "./file0", "jfs", MS_NOSUID|MS_STRICTATIME, "nointegrity,iocharset=iso8859-7,usrquota,discard,iocharset=cp936,gid=0x000000000000ee00,grpquota,quo"... [pid 5839] <... mkdir resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 s */} --- [pid 5839] mount("/dev/loop2", "./file0", "jfs", MS_NOSUID|MS_STRICTATIME, "nointegrity,iocharset=iso8859-7,usrquota,discard,iocharset=cp936,gid=0x000000000000ee00,grpquota,quo"... [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5841] close(3 [pid 5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5841] <... close resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5841] close(4) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5837] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] newfstatat(3, "", [pid 5841] mkdir("./file0", 0777 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5841] <... mkdir resumed>) = 0 [pid 5837] exit_group(0 [pid 5833] getdents64(3, [pid 5837] <... exit_group resumed>) = ? [pid 5833] <... getdents64 resumed>0x55557b4d76f0 /* 4 entries */, 32768) = 112 [pid 5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5841] mount("/dev/loop3", "./file0", "jfs", MS_NOSUID|MS_STRICTATIME, "nointegrity,iocharset=iso8859-7,usrquota,discard,iocharset=cp936,gid=0x000000000000ee00,grpquota,quo"... [pid 5833] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5840] <... mount resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./0/binderfs" [pid 5835] <... ioctl resumed>) = 0 [pid 5835] close(3 [pid 5841] <... mount resumed>) = 0 [pid 5840] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5839] <... mount resumed>) = 0 [pid 5837] +++ exited with 0 +++ [pid 5833] <... unlink resumed>) = 0 [pid 5839] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5830] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=23 /* 0.23 s */} --- [pid 5840] <... openat resumed>) = 3 [pid 5839] <... openat resumed>) = 3 [pid 5840] chdir("./file0" [pid 5839] chdir("./file0" [pid 5840] <... chdir resumed>) = 0 [pid 5839] <... chdir resumed>) = 0 [pid 5841] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5840] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5839] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5841] <... openat resumed>) = 3 [pid 5840] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5839] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 73.581675][ T5841] loop3: detected capacity change from 0 to 32768 [ 73.590084][ T5835] loop0: detected capacity change from 0 to 32768 [pid 5841] chdir("./file0" [pid 5830] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5841] <... chdir resumed>) = 0 [pid 5840] exit_group(0 [pid 5839] exit_group(0 [pid 5835] <... close resumed>) = 0 [pid 5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5839] <... exit_group resumed>) = ? [pid 5841] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5835] close(4 [pid 5841] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] <... close resumed>) = 0 [pid 5841] exit_group(0 [pid 5835] mkdir("./file0", 0777 [pid 5841] <... exit_group resumed>) = ? [pid 5839] +++ exited with 0 +++ [pid 5835] <... mkdir resumed>) = 0 [pid 5841] +++ exited with 0 +++ [pid 5835] mount("/dev/loop0", "./file0", "jfs", MS_NOSUID|MS_STRICTATIME, "nointegrity,iocharset=iso8859-7,usrquota,discard,iocharset=cp936,gid=0x000000000000ee00,grpquota,quo"... [pid 5840] <... exit_group resumed>) = ? [pid 5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 s */} --- [pid 5830] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5831] restart_syscall(<... resuming interrupted clone ...> [pid 5840] +++ exited with 0 +++ [pid 5832] restart_syscall(<... resuming interrupted clone ...> [pid 5830] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5832] <... restart_syscall resumed>) = 0 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=27 /* 0.27 s */} --- [pid 5831] <... restart_syscall resumed>) = 0 [pid 5830] <... openat resumed>) = 3 [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5830] newfstatat(3, "", [pid 5834] <... restart_syscall resumed>) = 0 [pid 5832] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5831] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5830] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5831] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] <... openat resumed>) = 3 [pid 5831] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5830] getdents64(3, [pid 5835] <... mount resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] newfstatat(3, "", [pid 5831] <... openat resumed>) = 3 [pid 5835] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5834] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5831] newfstatat(3, "", [pid 5830] <... getdents64 resumed>0x55557b4d76f0 /* 4 entries */, 32768) = 112 [pid 5835] <... openat resumed>) = 3 [pid 5834] <... openat resumed>) = 3 [pid 5832] getdents64(3, [pid 5831] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5830] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] chdir("./file0" [pid 5834] newfstatat(3, "", [pid 5833] <... umount2 resumed>) = 0 [pid 5832] <... getdents64 resumed>0x55557b4d76f0 /* 4 entries */, 32768) = 112 [pid 5831] getdents64(3, [pid 5830] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... chdir resumed>) = 0 [pid 5832] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] <... getdents64 resumed>0x55557b4d76f0 /* 4 entries */, 32768) = 112 [pid 5830] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5832] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5831] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5832] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5831] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5831] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5834] getdents64(3, [pid 5832] unlink("./0/binderfs" [pid 5831] unlink("./0/binderfs" [pid 5830] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] <... getdents64 resumed>0x55557b4d76f0 /* 4 entries */, 32768) = 112 [pid 5832] <... unlink resumed>) = 0 [pid 5831] <... unlink resumed>) = 0 [pid 5835] exit_group(0 [pid 5834] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5830] unlink("./0/binderfs" [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(4, 0x55557b4df730 /* 2 entries */, 32768) = 48 [pid 5833] getdents64(4, 0x55557b4df730 /* 0 entries */, 32768) = 0 [pid 5835] <... exit_group resumed>) = ? [pid 5834] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5833] close(4) = 0 [pid 5833] rmdir("./0/file0" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 5833] getdents64(3, 0x55557b4d76f0 /* 0 entries */, 32768) = 0 [pid 5835] +++ exited with 0 +++ [pid 5833] close(3 [pid 5834] unlink("./0/binderfs" [pid 5833] <... close resumed>) = 0 [pid 5829] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- [pid 5833] rmdir("./0" [pid 5829] restart_syscall(<... resuming interrupted clone ...> [pid 5834] <... unlink resumed>) = 0 [pid 5834] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... rmdir resumed>) = 0 [pid 5833] mkdir("./1", 0777) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5833] ioctl(3, LOOP_CLR_FD) = 0 [ 73.700288][ T5834] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 73.713105][ T5834] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 73.721609][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor114 Not tainted 6.13.0-rc3-syzkaller #0 [ 73.730991][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 73.741138][ T5834] RIP: 0010:lmLogSync+0x228/0xae0 [pid 5833] close(3) = 0 [pid 5831] <... umount2 resumed>) = 0 [pid 5830] <... unlink resumed>) = 0 [pid 5831] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5830] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5831] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5831] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5831] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5831] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5831] getdents64(4, 0x55557b4df730 /* 2 entries */, 32768) = 48 [pid 5831] getdents64(4, 0x55557b4df730 /* 0 entries */, 32768) = 0 [pid 5831] close(4) = 0 [pid 5831] rmdir("./0/file0") = 0 [pid 5831] getdents64(3, 0x55557b4d76f0 /* 0 entries */, 32768) = 0 [pid 5831] close(3) = 0 [pid 5831] rmdir("./0") = 0 [pid 5831] mkdir("./1", 0777) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5831] ioctl(3, LOOP_CLR_FD) = 0 [ 73.746217][ T5834] Code: a4 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 d6 ca d2 fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 b9 ca d2 fe 48 8b 3b e8 21 82 a4 [ 73.765835][ T5834] RSP: 0018:ffffc90003237a40 EFLAGS: 00010216 [ 73.771920][ T5834] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff888033560000 [ 73.779908][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 73.787907][ T5834] RBP: ffffc90003237b48 R08: ffffffff81d7958e R09: ffffc90003237828 [pid 5831] close(3 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557b4d6650) = 5844 [ 73.795908][ T5834] R10: dffffc0000000000 R11: fffff52000646f34 R12: ffff8880334ea800 [ 73.803899][ T5834] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803445dc38 [ 73.811885][ T5834] FS: 000055557b4d6380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 73.820918][ T5834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.827515][ T5834] CR2: 000055e5b0ce4758 CR3: 000000007a4b4000 CR4: 0000000000350ef0 [ 73.835592][ T5834] Call Trace: [ 73.838879][ T5834] [ 73.841819][ T5834] ? __die_body+0x5f/0xb0 [ 73.846168][ T5834] ? die_addr+0xb0/0xe0 [ 73.850347][ T5834] ? exc_general_protection+0x3dd/0x5d0 [ 73.855937][ T5834] ? asm_exc_general_protection+0x26/0x30 [ 73.861687][ T5834] ? filemap_flush+0x17e/0x260 [ 73.866568][ T5834] ? lmLogSync+0x228/0xae0 [ 73.871013][ T5834] ? __pfx_lmLogSync+0x10/0x10 [ 73.875801][ T5834] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 73.881713][ T5834] jfs_syncpt+0x7d/0xa0 [ 73.885889][ T5834] jfs_sync_fs+0x8a/0xa0 [ 73.890147][ T5834] sync_filesystem+0xef/0x230 [ 73.894851][ T5834] generic_shutdown_super+0x72/0x2d0 [pid 5831] <... close resumed>) = 0 [pid 5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557b4d6650) = 5845 ./strace-static-x86_64: Process 5844 attached ./strace-static-x86_64: Process 5845 attached [pid 5844] set_robust_list(0x55557b4d6660, 24 [pid 5845] set_robust_list(0x55557b4d6660, 24 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5844] chdir("./1" [pid 5845] chdir("./1" [pid 5844] <... chdir resumed>) = 0 [ 73.900171][ T5834] kill_block_super+0x44/0x90 [ 73.904859][ T5834] deactivate_locked_super+0xc6/0x130 [ 73.910256][ T5834] cleanup_mnt+0x41f/0x4b0 [ 73.914706][ T5834] ? srso_alias_return_thunk+0x5/0xfbef5 [ 73.920351][ T5834] ? lockdep_hardirqs_on+0x99/0x150 [ 73.925584][ T5834] task_work_run+0x251/0x310 [ 73.930217][ T5834] ? __pfx_task_work_run+0x10/0x10 [ 73.935356][ T5834] ? srso_alias_return_thunk+0x5/0xfbef5 [ 73.941010][ T5834] ? path_umount+0x284/0xf70 [ 73.945619][ T5834] ptrace_notify+0x2d2/0x380 [pid 5845] <... chdir resumed>) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... prctl resumed>) = 0 [pid 5845] <... prctl resumed>) = 0 [pid 5844] setpgid(0, 0 [pid 5845] setpgid(0, 0) = 0 [pid 5844] <... setpgid resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... openat resumed>) = 3 [pid 5844] <... openat resumed>) = 3 [pid 5845] write(3, "1000", 4) = 4 [pid 5844] write(3, "1000", 4 [pid 5845] close(3 [pid 5844] <... write resumed>) = 4 [pid 5845] <... close resumed>) = 0 [pid 5844] close(3 [pid 5845] symlink("/dev/binderfs", "./binderfs" [pid 5844] <... close resumed>) = 0 [pid 5845] <... symlink resumed>) = 0 executing program [pid 5844] symlink("/dev/binderfs", "./binderfs" [pid 5845] write(1, "executing program\n", 18) = 18 [pid 5845] memfd_create("syzkaller", 0) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f075ee00000 [ 73.950232][ T5834] ? __pfx_ptrace_notify+0x10/0x10 [ 73.955373][ T5834] ? kmem_cache_free+0x195/0x410 [ 73.960319][ T5834] ? srso_alias_return_thunk+0x5/0xfbef5 [ 73.965956][ T5834] ? __x64_sys_umount+0x123/0x170 [ 73.971001][ T5834] syscall_exit_work+0xc7/0x1d0 [ 73.975852][ T5834] syscall_exit_to_user_mode+0x24a/0x340 [ 73.981496][ T5834] do_syscall_64+0x100/0x230 [ 73.986118][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 73.992191][ T5834] RIP: 0033:0x7f07673705b7 [ 73.996696][ T5834] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 74.016316][ T5834] RSP: 002b:00007ffd48b5a318 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 74.024752][ T5834] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f07673705b7 [ 74.032731][ T5834] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd48b5a3d0 [ 74.040710][ T5834] RBP: 00007ffd48b5a3d0 R08: 0000000000000000 R09: 0000000000000000 [pid 5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5829] <... restart_syscall resumed>) = 0 [pid 5844] <... symlink resumed>) = 0 executing program [pid 5844] write(1, "executing program\n", 18) = 18 [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5829] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5829] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5844] <... mmap resumed>) = 0x7f075ee00000 [pid 5829] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 74.048688][ T5834] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd48b5b440 [ 74.056758][ T5834] R13: 000055557b4d76c0 R14: 431bde82d7b634db R15: 00007ffd48b5b460 [ 74.064831][ T5834] [ 74.067846][ T5834] Modules linked in: [ 74.072243][ T5834] ---[ end trace 0000000000000000 ]--- [ 74.091251][ T5834] RIP: 0010:lmLogSync+0x228/0xae0 [pid 5829] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5829] getdents64(3, 0x55557b4d76f0 /* 4 entries */, 32768) = 112 [pid 5829] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5829] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5829] unlink("./0/binderfs") = 0 [ 74.096353][ T5834] Code: a4 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 d6 ca d2 fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 b9 ca d2 fe 48 8b 3b e8 21 82 a4 [ 74.141408][ T5834] RSP: 0018:ffffc90003237a40 EFLAGS: 00010216 [pid 5829] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 74.147697][ T5834] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff888033560000 [ 74.163645][ T5834] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 74.172096][ T5834] RBP: ffffc90003237b48 R08: ffffffff81d7958e R09: ffffc90003237828 [ 74.180406][ T5834] R10: dffffc0000000000 R11: fffff52000646f34 R12: ffff8880334ea800 [pid 5844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5845] <... write resumed>) = 16777216 [ 74.201234][ T5834] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803445dc38 [ 74.209242][ T5834] FS: 000055557b4d6380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 74.229773][ T5834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.236415][ T5834] CR2: 00007f075fdff000 CR3: 000000007a4b4000 CR4: 0000000000350ef0 [ 74.253305][ T5834] Kernel panic - not syncing: Fatal exception [ 74.259596][ T5834] Kernel Offset: disabled [ 74.263913][ T5834] Rebooting in 86400 seconds..