./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2472908129 <...> Warning: Permanently added '10.128.0.145' (ED25519) to the list of known hosts. execve("./syz-executor2472908129", ["./syz-executor2472908129"], 0x7ffcb9632240 /* 10 vars */) = 0 brk(NULL) = 0x55557d49e000 brk(0x55557d49ed00) = 0x55557d49ed00 arch_prctl(ARCH_SET_FS, 0x55557d49e380) = 0 set_tid_address(0x55557d49e650) = 5829 set_robust_list(0x55557d49e660, 24) = 0 rseq(0x55557d49eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2472908129", 4096) = 28 getrandom("\x42\xc4\x12\x7e\x20\x59\x85\xd4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557d49ed00 brk(0x55557d4bfd00) = 0x55557d4bfd00 brk(0x55557d4c0000) = 0x55557d4c0000 mprotect(0x7f21da505000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557d49e650) = 5830 ./strace-static-x86_64: Process 5830 attached [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] set_robust_list(0x55557d49e660, 24) = 0 [pid 5830] mkdir("./syzkaller.k6zFwk", 0700./strace-static-x86_64: Process 5831 attached [pid 5829] <... clone resumed>, child_tidptr=0x55557d49e650) = 5831 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] set_robust_list(0x55557d49e660, 24 [pid 5830] <... mkdir resumed>) = 0 [pid 5831] <... set_robust_list resumed>) = 0 [pid 5831] mkdir("./syzkaller.1IBdtX", 0700 [pid 5830] chmod("./syzkaller.k6zFwk", 0777./strace-static-x86_64: Process 5832 attached [pid 5829] <... clone resumed>, child_tidptr=0x55557d49e650) = 5832 [pid 5830] <... chmod resumed>) = 0 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5832] set_robust_list(0x55557d49e660, 24) = 0 [pid 5831] <... mkdir resumed>) = 0 [pid 5832] mkdir("./syzkaller.nb8Swp", 0700 [pid 5831] chmod("./syzkaller.1IBdtX", 0777./strace-static-x86_64: Process 5833 attached [pid 5832] <... mkdir resumed>) = 0 [pid 5830] chdir("./syzkaller.k6zFwk" [pid 5831] <... chmod resumed>) = 0 [pid 5829] <... clone resumed>, child_tidptr=0x55557d49e650) = 5833 [pid 5833] set_robust_list(0x55557d49e660, 24 [pid 5832] chmod("./syzkaller.nb8Swp", 0777 [pid 5830] <... chdir resumed>) = 0 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] <... set_robust_list resumed>) = 0 [pid 5832] <... chmod resumed>) = 0 [pid 5831] chdir("./syzkaller.1IBdtX" [pid 5833] mkdir("./syzkaller.q3UXxu", 0700 [pid 5831] <... chdir resumed>) = 0 [pid 5830] mkdir("./0", 0777 [pid 5832] chdir("./syzkaller.nb8Swp" [pid 5831] mkdir("./0", 0777 [pid 5832] <... chdir resumed>) = 0 [pid 5832] mkdir("./0", 0777./strace-static-x86_64: Process 5834 attached [pid 5833] <... mkdir resumed>) = 0 [pid 5831] <... mkdir resumed>) = 0 [pid 5830] <... mkdir resumed>) = 0 [pid 5833] chmod("./syzkaller.q3UXxu", 0777 [pid 5829] <... clone resumed>, child_tidptr=0x55557d49e650) = 5834 [pid 5833] <... chmod resumed>) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5834] set_robust_list(0x55557d49e660, 24 [pid 5833] chdir("./syzkaller.q3UXxu" [pid 5832] <... mkdir resumed>) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5833] <... chdir resumed>) = 0 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5833] mkdir("./0", 0777 [pid 5832] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5831] <... openat resumed>) = 3 [pid 5830] <... openat resumed>) = 3 [pid 5834] mkdir("./syzkaller.Ja0Ecq", 0700 [pid 5832] <... openat resumed>) = 3 [pid 5830] ioctl(3, LOOP_CLR_FD [pid 5831] ioctl(3, LOOP_CLR_FD [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5830] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5831] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5830] close(3 [pid 5834] chmod("./syzkaller.Ja0Ecq", 0777 [pid 5833] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5832] ioctl(3, LOOP_CLR_FD [pid 5831] close(3 [pid 5830] <... close resumed>) = 0 [pid 5831] <... close resumed>) = 0 [pid 5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... chmod resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5832] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] chdir("./syzkaller.Ja0Ecq" [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5832] close(3./strace-static-x86_64: Process 5836 attached ./strace-static-x86_64: Process 5835 attached [pid 5834] <... chdir resumed>) = 0 [pid 5833] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5832] <... close resumed>) = 0 [pid 5836] set_robust_list(0x55557d49e660, 24 [pid 5835] set_robust_list(0x55557d49e660, 24 [pid 5834] mkdir("./0", 0777 [pid 5833] close(3 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] <... clone resumed>, child_tidptr=0x55557d49e650) = 5836 ./strace-static-x86_64: Process 5837 attached [pid 5836] <... set_robust_list resumed>) = 0 [pid 5835] <... set_robust_list resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5830] <... clone resumed>, child_tidptr=0x55557d49e650) = 5835 [pid 5837] set_robust_list(0x55557d49e660, 24 [pid 5836] chdir("./0" [pid 5837] <... set_robust_list resumed>) = 0 [pid 5837] chdir("./0" [pid 5835] chdir("./0" [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5837] <... chdir resumed>) = 0 [pid 5835] <... chdir resumed>) = 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5836] <... chdir resumed>) = 0 [pid 5835] <... prctl resumed>) = 0 [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] setpgid(0, 0 [pid 5836] <... prctl resumed>) = 0 [pid 5835] <... setpgid resumed>) = 0 [pid 5836] setpgid(0, 0 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5836] <... setpgid resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5832] <... clone resumed>, child_tidptr=0x55557d49e650) = 5837 [pid 5836] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5839 attached [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] write(3, "1000", 4 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5833] <... clone resumed>, child_tidptr=0x55557d49e650) = 5839 [pid 5839] set_robust_list(0x55557d49e660, 24 [pid 5837] <... prctl resumed>) = 0 [pid 5839] <... set_robust_list resumed>) = 0 [pid 5837] setpgid(0, 0 [pid 5839] chdir("./0" [pid 5837] <... setpgid resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5836] write(3, "1000", 4 [pid 5835] <... write resumed>) = 4 [pid 5834] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5839] <... chdir resumed>) = 0 [pid 5837] write(3, "1000", 4 [pid 5836] <... write resumed>) = 4 [pid 5835] close(3 [pid 5834] close(3 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5837] <... write resumed>) = 4 [pid 5834] <... close resumed>) = 0 [pid 5839] <... prctl resumed>) = 0 [pid 5837] close(3 [pid 5839] setpgid(0, 0 [pid 5837] <... close resumed>) = 0 [pid 5836] close(3 [pid 5835] <... close resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5840 attached [pid 5839] <... setpgid resumed>) = 0 [pid 5837] symlink("/dev/binderfs", "./binderfs" [pid 5836] <... close resumed>) = 0 [pid 5835] symlink("/dev/binderfs", "./binderfs" [pid 5837] <... symlink resumed>) = 0 [pid 5836] symlink("/dev/binderfs", "./binderfs" [pid 5835] <... symlink resumed>) = 0 executing program [pid 5836] <... symlink resumed>) = 0 [pid 5840] set_robust_list(0x55557d49e660, 24 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] write(1, "executing program\n", 18 [pid 5835] write(1, "executing program\n", 18 [pid 5834] <... clone resumed>, child_tidptr=0x55557d49e650) = 5840 executing program executing program [pid 5840] <... set_robust_list resumed>) = 0 [pid 5839] <... openat resumed>) = 3 [pid 5837] <... write resumed>) = 18 [pid 5840] chdir("./0" [pid 5836] write(1, "executing program\n", 18 [pid 5835] <... write resumed>) = 18 [pid 5840] <... chdir resumed>) = 0 [pid 5839] write(3, "1000", 4 [pid 5837] memfd_create("syzkaller", 0 [pid 5836] <... write resumed>) = 18 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5839] <... write resumed>) = 4 [pid 5837] <... memfd_create resumed>) = 3 [pid 5836] memfd_create("syzkaller", 0 [pid 5840] <... prctl resumed>) = 0 [pid 5839] close(3 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] setpgid(0, 0 [pid 5837] <... mmap resumed>) = 0x7f21d2000000 [pid 5839] <... close resumed>) = 0 [pid 5835] memfd_create("syzkaller", 0 [pid 5836] <... memfd_create resumed>) = 3 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f21d2000000 executing program [pid 5840] <... setpgid resumed>) = 0 [pid 5839] symlink("/dev/binderfs", "./binderfs" [pid 5835] <... memfd_create resumed>) = 3 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... mmap resumed>) = 0x7f21d2000000 [pid 5840] <... openat resumed>) = 3 [pid 5839] <... symlink resumed>) = 0 [pid 5840] write(3, "1000", 4 [pid 5839] write(1, "executing program\n", 18 [pid 5840] <... write resumed>) = 4 [pid 5839] <... write resumed>) = 18 [pid 5840] close(3) = 0 [pid 5839] memfd_create("syzkaller", 0 [pid 5840] symlink("/dev/binderfs", "./binderfs" [pid 5839] <... memfd_create resumed>) = 3 [pid 5840] <... symlink resumed>) = 0 [pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] write(1, "executing program\n", 18executing program ) = 18 [pid 5839] <... mmap resumed>) = 0x7f21d2000000 [pid 5840] memfd_create("syzkaller", 0) = 3 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f21d2000000 [pid 5836] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 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 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 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 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 5836] <... write resumed>) = 16777216 [pid 5839] <... write resumed>) = 16777216 [pid 5835] <... write resumed>) = 16777216 [pid 5839] munmap(0x7f21d2000000, 138412032 [pid 5836] munmap(0x7f21d2000000, 138412032 [pid 5840] <... write resumed>) = 16777216 [pid 5840] munmap(0x7f21d2000000, 138412032 [pid 5836] <... munmap resumed>) = 0 [pid 5835] munmap(0x7f21d2000000, 138412032 [pid 5836] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5836] ioctl(4, LOOP_SET_FD, 3 [pid 5839] <... munmap resumed>) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5837] <... write resumed>) = 16777216 [pid 5839] <... openat resumed>) = 4 [pid 5839] ioctl(4, LOOP_SET_FD, 3 [pid 5837] munmap(0x7f21d2000000, 138412032 [pid 5840] <... munmap resumed>) = 0 [pid 5839] <... ioctl resumed>) = 0 [pid 5836] <... ioctl resumed>) = 0 [pid 5835] <... munmap resumed>) = 0 [pid 5839] close(3) = 0 [pid 5839] close(4 [pid 5840] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5836] close(3 [pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5839] <... close resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5836] close(4 [pid 5839] mkdir("./file0", 0777 [pid 5835] <... openat resumed>) = 4 [pid 5836] <... close resumed>) = 0 [pid 5839] <... mkdir resumed>) = 0 [pid 5836] mkdir("./file0", 0777) = 0 [ 90.039185][ T5836] loop1: detected capacity change from 0 to 32768 [ 90.057017][ T5839] loop3: detected capacity change from 0 to 32768 [pid 5835] ioctl(4, LOOP_SET_FD, 3 [pid 5840] <... openat resumed>) = 4 [pid 5840] ioctl(4, LOOP_SET_FD, 3 [pid 5839] mount("/dev/loop3", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" [pid 5836] mount("/dev/loop1", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" [pid 5840] <... ioctl resumed>) = 0 [pid 5840] close(3) = 0 [pid 5840] close(4) = 0 [pid 5840] mkdir("./file0", 0777) = 0 [pid 5837] <... munmap resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5837] ioctl(4, LOOP_SET_FD, 3 [pid 5840] mount("/dev/loop4", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" [pid 5839] <... mount resumed>) = 0 [pid 5839] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5836] <... mount resumed>) = 0 [pid 5835] <... ioctl resumed>) = 0 [pid 5836] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5835] close(3 [pid 5839] <... openat resumed>) = 3 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... close resumed>) = 0 [pid 5839] chdir("./file0" [pid 5836] chdir("./file0" [pid 5835] close(4 [pid 5839] <... chdir resumed>) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5836] <... chdir resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5839] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5836] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5835] mkdir("./file0", 0777 [pid 5839] exit_group(0 [pid 5835] <... mkdir resumed>) = 0 [pid 5836] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5840] <... mount resumed>) = 0 [pid 5839] <... exit_group resumed>) = ? [pid 5836] exit_group(0 [pid 5835] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" [pid 5840] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5836] <... exit_group resumed>) = ? [pid 5840] chdir("./file0" [pid 5836] +++ exited with 0 +++ [pid 5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=25 /* 0.25 s */} --- [pid 5840] <... chdir resumed>) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5831] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5839] +++ exited with 0 +++ [pid 5837] <... ioctl resumed>) = 0 [pid 5831] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] exit_group(0 [pid 5837] close(3 [pid 5831] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5837] <... close resumed>) = 0 [pid 5837] close(4 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5840] <... exit_group resumed>) = ? [pid 5837] <... close resumed>) = 0 [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 5831] <... openat resumed>) = 3 [pid 5840] +++ exited with 0 +++ [pid 5837] mkdir("./file0", 0777) = 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=24 /* 0.24 s */} --- [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5831] newfstatat(3, "", [pid 5837] mount("/dev/loop2", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "gid=0x0000000000000000,nointegrity,nodiscard,nodiscard,errors=continue,iocharset=iso8859-3,discard" [pid 5833] <... restart_syscall resumed>) = 0 [pid 5831] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 90.081097][ T5835] loop0: detected capacity change from 0 to 32768 [ 90.086674][ T5840] loop4: detected capacity change from 0 to 32768 [ 90.101963][ T5837] loop2: detected capacity change from 0 to 32768 [pid 5831] getdents64(3, [pid 5835] <... mount resumed>) = 0 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] <... getdents64 resumed>0x55557d49f6f0 /* 4 entries */, 32768) = 112 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5831] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5834] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] <... openat resumed>) = 3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] chdir("./file0" [pid 5834] <... openat resumed>) = 3 [pid 5833] <... openat resumed>) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... chdir resumed>) = 0 [pid 5834] getdents64(3, [pid 5833] newfstatat(3, "", [pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5834] <... getdents64 resumed>0x55557d49f6f0 /* 4 entries */, 32768) = 112 [pid 5834] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55557d49f6f0 /* 4 entries */, 32768) = 112 [pid 5835] exit_group(0 [pid 5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... exit_group resumed>) = ? [pid 5835] +++ exited with 0 +++ [pid 5830] --- 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=30 /* 0.30 s */} --- [pid 5830] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 90.184998][ T5831] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI [ 90.196931][ T5831] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 90.205383][ T5831] CPU: 1 UID: 0 PID: 5831 Comm: syz-executor247 Not tainted 6.15.0-syzkaller-11173-g546b1c9e93c2 #0 PREEMPT(full) [ 90.217564][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.227727][ T5831] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 90.232808][ T5831] Code: 27 b9 fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 50 ad e3 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 34 ad e3 fe 49 8b 3f e8 2c 27 b9 fe [ 90.252434][ T5831] RSP: 0018:ffffc90004427a80 EFLAGS: 00010206 [ 90.258833][ T5831] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88807b581e00 [ 90.268495][ T5831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.276469][ T5831] RBP: ffffc90004427b88 R08: ffffc900044279df R09: 0000000000000000 [ 90.284444][ T5831] R10: ffffc90004427868 R11: fffff52000884f3c R12: ffff888034a1f000 [ 90.292433][ T5831] R13: dffffc0000000000 R14: ffff88803282e038 R15: 0000000000000030 [ 90.300416][ T5831] FS: 000055557d49e380(0000) GS:ffff888125d93000(0000) knlGS:0000000000000000 [ 90.309348][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.315927][ T5831] CR2: 00007efe00d47000 CR3: 0000000075148000 CR4: 00000000003526f0 [ 90.323912][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.331886][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.339869][ T5831] Call Trace: [ 90.343159][ T5831] [ 90.346090][ T5831] ? __pfx___mutex_lock+0x10/0x10 [ 90.351134][ T5831] ? __pfx_lmLogSync+0x10/0x10 [ 90.355905][ T5831] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 90.361810][ T5831] ? __pfx___writeback_inodes_sb_nr+0x10/0x10 [ 90.367878][ T5831] jfs_syncpt+0x7b/0x90 [ 90.372033][ T5831] jfs_sync_fs+0x87/0xa0 [ 90.376273][ T5831] sync_filesystem+0xee/0x230 [ 90.380957][ T5831] generic_shutdown_super+0x6f/0x2c0 [ 90.386238][ T5831] kill_block_super+0x44/0x90 [ 90.390912][ T5831] deactivate_locked_super+0xbc/0x130 [ 90.396283][ T5831] cleanup_mnt+0x425/0x4c0 [ 90.400700][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.405909][ T5831] task_work_run+0x1d4/0x260 [ 90.410504][ T5831] ? __pfx_task_work_run+0x10/0x10 [ 90.415608][ T5831] ? __x64_sys_umount+0x122/0x160 [ 90.420636][ T5831] ptrace_notify+0x281/0x2c0 [ 90.425235][ T5831] ? __pfx_ptrace_notify+0x10/0x10 [ 90.430355][ T5831] ? __x64_sys_umount+0x122/0x160 [ 90.435380][ T5831] ? __pfx___x64_sys_umount+0x10/0x10 [ 90.440775][ T5831] syscall_exit_work+0xc6/0x1d0 [ 90.445632][ T5831] do_syscall_64+0x2ad/0x3b0 [ 90.450232][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.455437][ T5831] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.461512][ T5831] ? clear_bhb_loop+0x60/0xb0 [ 90.466206][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.472096][ T5831] RIP: 0033:0x7f21da48c537 [ 90.476527][ T5831] 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 [ 90.496144][ T5831] RSP: 002b:00007fff88604448 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 90.504562][ T5831] RAX: 0000000000000000 RBX: 0000000000015c8d RCX: 00007f21da48c537 [ 90.512532][ T5831] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff88604500 [ 90.520518][ T5831] RBP: 00007fff88604500 R08: 0000000000000000 R09: 0000000000000000 [ 90.528497][ T5831] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff88605570 [pid 5830] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5830] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5830] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5837] <... mount resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5837] chdir("./file0" [pid 5830] getdents64(3, [pid 5837] <... chdir resumed>) = 0 [pid 5830] <... getdents64 resumed>0x55557d49f6f0 /* 4 entries */, 32768) = 112 [pid 5837] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5830] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 90.536472][ T5831] R13: 000055557d49f6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 90.544462][ T5831] [ 90.547501][ T5831] Modules linked in: [ 90.551913][ T5831] ---[ end trace 0000000000000000 ]--- [pid 5837] exit_group(0) = ? [pid 5837] +++ exited with 0 +++ [ 90.586206][ T5831] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 90.591331][ T5831] Code: 27 b9 fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 50 ad e3 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 34 ad e3 fe 49 8b 3f e8 2c 27 b9 fe [ 90.615549][ T5831] RSP: 0018:ffffc90004427a80 EFLAGS: 00010206 [ 90.621853][ T5831] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88807b581e00 [pid 5832] --- 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=24 /* 0.24 s */} --- [pid 5832] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5832] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5832] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] getdents64(3, 0x55557d49f6f0 /* 4 entries */, 32768) = 112 [ 90.631022][ T5831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.675141][ T5831] RBP: ffffc90004427b88 R08: ffffc900044279df R09: 0000000000000000 [ 90.683181][ T5831] R10: ffffc90004427868 R11: fffff52000884f3c R12: ffff888034a1f000 [ 90.702471][ T5831] R13: dffffc0000000000 R14: ffff88803282e038 R15: 0000000000000030 [ 90.724512][ T5831] FS: 000055557d49e380(0000) GS:ffff888125c93000(0000) knlGS:0000000000000000 [ 90.733483][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.755866][ T5831] CR2: 00007efe00d50000 CR3: 0000000075148000 CR4: 00000000003526f0 [ 90.763884][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.788818][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.796899][ T5831] Kernel panic - not syncing: Fatal exception [ 90.803345][ T5831] Kernel Offset: disabled [ 90.807671][ T5831] Rebooting in 86400 seconds..