./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1453098199 <...> Warning: Permanently added '10.128.10.6' (ED25519) to the list of known hosts. execve("./syz-executor1453098199", ["./syz-executor1453098199"], 0x7ffdd2b1c3e0 /* 10 vars */) = 0 brk(NULL) = 0x55557374d000 brk(0x55557374dd00) = 0x55557374dd00 arch_prctl(ARCH_SET_FS, 0x55557374d380) = 0 set_tid_address(0x55557374d650) = 5826 set_robust_list(0x55557374d660, 24) = 0 rseq(0x55557374dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1453098199", 4096) = 28 getrandom("\xc7\x55\x89\x91\x25\x54\x85\x3c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557374dd00 brk(0x55557376ed00) = 0x55557376ed00 brk(0x55557376f000) = 0x55557376f000 mprotect(0x7fc12597d000, 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./strace-static-x86_64: Process 5827 attached [pid 5827] set_robust_list(0x55557374d660, 24 [pid 5826] <... clone resumed>, child_tidptr=0x55557374d650) = 5827 [pid 5827] <... set_robust_list resumed>) = 0 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5827] mkdir("./syzkaller.38KaeB", 0700./strace-static-x86_64: Process 5828 attached ) = 0 [pid 5827] chmod("./syzkaller.38KaeB", 0777 [pid 5826] <... clone resumed>, child_tidptr=0x55557374d650) = 5828 [pid 5828] set_robust_list(0x55557374d660, 24 [pid 5827] <... chmod resumed>) = 0 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5828] <... set_robust_list resumed>) = 0 [pid 5827] chdir("./syzkaller.38KaeB" [pid 5828] mkdir("./syzkaller.KnfNAP", 0700 [pid 5827] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5829 attached [pid 5826] <... clone resumed>, child_tidptr=0x55557374d650) = 5829 [pid 5829] set_robust_list(0x55557374d660, 24 [pid 5827] mkdir("./0", 0777 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5829] <... set_robust_list resumed>) = 0 [pid 5828] <... mkdir resumed>) = 0 [pid 5827] <... mkdir resumed>) = 0 [pid 5829] mkdir("./syzkaller.cbpiIN", 0700 [pid 5828] chmod("./syzkaller.KnfNAP", 0777 [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5830 attached [pid 5830] set_robust_list(0x55557374d660, 24 [pid 5826] <... clone resumed>, child_tidptr=0x55557374d650) = 5830 [pid 5829] <... mkdir resumed>) = 0 [pid 5828] <... chmod resumed>) = 0 [pid 5827] <... openat resumed>) = 3 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] <... set_robust_list resumed>) = 0 [pid 5829] chmod("./syzkaller.cbpiIN", 0777 [pid 5828] chdir("./syzkaller.KnfNAP" [pid 5827] ioctl(3, LOOP_CLR_FD [pid 5829] <... chmod resumed>) = 0 [pid 5828] <... chdir resumed>) = 0 [pid 5828] mkdir("./0", 0777 [pid 5827] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5831 attached [pid 5830] getrandom( [pid 5829] chdir("./syzkaller.cbpiIN" [pid 5827] close(3 [pid 5830] <... getrandom resumed>"\x08\xf9\x6e\xa5\x13\xbf\xfb\xd0", 8, GRND_NONBLOCK) = 8 [pid 5826] <... clone resumed>, child_tidptr=0x55557374d650) = 5831 [pid 5831] set_robust_list(0x55557374d660, 24 [pid 5830] mkdir("./syzkaller.szq3KN", 0700 [pid 5829] <... chdir resumed>) = 0 [pid 5828] <... mkdir resumed>) = 0 [pid 5827] <... close resumed>) = 0 [pid 5830] <... mkdir resumed>) = 0 [pid 5829] mkdir("./0", 0777 [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] <... set_robust_list resumed>) = 0 [pid 5829] <... mkdir resumed>) = 0 [pid 5828] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5831] mkdir("./syzkaller.yW5qIj", 0700 [pid 5830] chmod("./syzkaller.szq3KN", 0777 [pid 5828] <... openat resumed>) = 3 [pid 5830] <... chmod resumed>) = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5831] <... mkdir resumed>) = 0 [pid 5830] chdir("./syzkaller.szq3KN" [pid 5829] <... openat resumed>) = 3 [pid 5830] <... chdir resumed>) = 0 [pid 5827] <... clone resumed>, child_tidptr=0x55557374d650) = 5832 [pid 5830] mkdir("./0", 0777./strace-static-x86_64: Process 5832 attached [pid 5831] chmod("./syzkaller.yW5qIj", 0777 [pid 5829] ioctl(3, LOOP_CLR_FD [pid 5828] ioctl(3, LOOP_CLR_FD [pid 5832] set_robust_list(0x55557374d660, 24) = 0 [pid 5831] <... chmod resumed>) = 0 [pid 5830] <... mkdir resumed>) = 0 [pid 5829] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5828] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5829] close(3 [pid 5832] chdir("./0" [pid 5831] chdir("./syzkaller.yW5qIj" [pid 5830] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5829] <... close resumed>) = 0 [pid 5828] close(3 [pid 5832] <... chdir resumed>) = 0 [pid 5831] <... chdir resumed>) = 0 [pid 5830] <... openat resumed>) = 3 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5834 attached [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5831] mkdir("./0", 0777 [pid 5828] <... close resumed>) = 0 [pid 5832] <... prctl resumed>) = 0 [pid 5830] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5830] close(3) = 0 [pid 5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5835 attached [pid 5834] set_robust_list(0x55557374d660, 24 [pid 5832] setpgid(0, 0 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... set_robust_list resumed>) = 0 [pid 5832] <... setpgid resumed>) = 0 [pid 5835] set_robust_list(0x55557374d660, 24 [pid 5829] <... clone resumed>, child_tidptr=0x55557374d650) = 5834 [pid 5835] <... set_robust_list resumed>) = 0 [pid 5835] chdir("./0") = 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5830] <... clone resumed>, child_tidptr=0x55557374d650) = 5835 [pid 5835] setpgid(0, 0 [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... setpgid resumed>) = 0 [pid 5834] chdir("./0" [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5836 attached [pid 5834] <... chdir resumed>) = 0 [pid 5832] <... openat resumed>) = 3 [pid 5831] <... mkdir resumed>) = 0 [pid 5828] <... clone resumed>, child_tidptr=0x55557374d650) = 5836 [pid 5836] set_robust_list(0x55557374d660, 24 [pid 5835] <... openat resumed>) = 3 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5832] write(3, "1000", 4 [pid 5836] <... set_robust_list resumed>) = 0 [pid 5834] <... prctl resumed>) = 0 [pid 5832] <... write resumed>) = 4 [pid 5831] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5836] chdir("./0" [pid 5834] setpgid(0, 0 [pid 5832] close(3 [pid 5831] <... openat resumed>) = 3 [pid 5831] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5832] <... close resumed>) = 0 [pid 5834] <... setpgid resumed>) = 0 [pid 5836] <... chdir resumed>) = 0 [pid 5832] symlink("/dev/binderfs", "./binderfs" [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL executing program executing program [pid 5835] write(3, "1000", 4 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] <... symlink resumed>) = 0 [pid 5831] close(3 [pid 5836] <... prctl resumed>) = 0 [pid 5836] setpgid(0, 0 [pid 5835] <... write resumed>) = 4 [pid 5831] <... close resumed>) = 0 [pid 5835] close(3 [pid 5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] <... close resumed>) = 0 [pid 5835] symlink("/dev/binderfs", "./binderfs" [pid 5836] <... setpgid resumed>) = 0 [pid 5835] <... symlink resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5832] write(1, "executing program\n", 18 [pid 5835] write(1, "executing program\n", 18./strace-static-x86_64: Process 5837 attached [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... write resumed>) = 18 [pid 5834] write(3, "1000", 4 [pid 5832] <... write resumed>) = 18 [pid 5836] <... openat resumed>) = 3 [pid 5835] memfd_create("syzkaller", 0 [pid 5834] <... write resumed>) = 4 [pid 5837] set_robust_list(0x55557374d660, 24 [pid 5836] write(3, "1000", 4 [pid 5835] <... memfd_create resumed>) = 3 [pid 5834] close(3 [pid 5832] memfd_create("syzkaller", 0 [pid 5837] <... set_robust_list resumed>) = 0 [pid 5836] <... write resumed>) = 4 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5834] <... close resumed>) = 0 [pid 5837] chdir("./0" [pid 5836] close(3 [pid 5835] <... mmap resumed>) = 0x7fc11d400000 [pid 5834] symlink("/dev/binderfs", "./binderfs" [pid 5832] <... memfd_create resumed>) = 3 [pid 5831] <... clone resumed>, child_tidptr=0x55557374d650) = 5837 [pid 5837] <... chdir resumed>) = 0 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5837] setpgid(0, 0) = 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1000", 4) = 4 [pid 5837] close(3 [pid 5836] <... close resumed>) = 0 [pid 5834] <... symlink resumed>) = 0 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program [pid 5836] symlink("/dev/binderfs", "./binderfs" [pid 5834] write(1, "executing program\n", 18 [pid 5832] <... mmap resumed>) = 0x7fc11d400000 [pid 5834] <... write resumed>) = 18 [pid 5837] <... close resumed>) = 0 [pid 5836] <... symlink resumed>) = 0 [pid 5837] symlink("/dev/binderfs", "./binderfs"executing program [pid 5834] memfd_create("syzkaller", 0 [pid 5837] <... symlink resumed>) = 0 [pid 5836] write(1, "executing program\n", 18 [pid 5834] <... memfd_create resumed>) = 3 executing program [pid 5836] <... write resumed>) = 18 [pid 5837] write(1, "executing program\n", 18) = 18 [pid 5836] memfd_create("syzkaller", 0 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5837] memfd_create("syzkaller", 0) = 3 [pid 5836] <... memfd_create resumed>) = 3 [pid 5834] <... mmap resumed>) = 0x7fc11d400000 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc11d400000 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc11d400000 [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 5832] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5834] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 resumed>) = 16777216 [pid 5837] munmap(0x7fc11d400000, 138412032 [pid 5835] <... write resumed>) = 16777216 [pid 5837] <... munmap resumed>) = 0 [pid 5832] <... write resumed>) = 16777216 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5837] ioctl(4, LOOP_SET_FD, 3 [pid 5835] munmap(0x7fc11d400000, 138412032 [pid 5832] munmap(0x7fc11d400000, 138412032 [pid 5834] <... write resumed>) = 16777216 [pid 5834] munmap(0x7fc11d400000, 138412032 [pid 5835] <... munmap resumed>) = 0 [pid 5837] <... ioctl resumed>) = 0 [pid 5837] close(3 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5832] <... munmap resumed>) = 0 [pid 5837] <... close resumed>) = 0 [ 91.363406][ T5837] loop4: detected capacity change from 0 to 32768 [pid 5837] close(4) = 0 [pid 5835] <... openat resumed>) = 4 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5837] mkdir("./file0", 0777 [pid 5835] ioctl(4, LOOP_SET_FD, 3 [pid 5832] <... openat resumed>) = 4 [pid 5834] <... munmap resumed>) = 0 [pid 5836] <... write resumed>) = 16777216 [pid 5837] <... mkdir resumed>) = 0 [pid 5836] munmap(0x7fc11d400000, 138412032 [pid 5835] <... ioctl resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5832] ioctl(4, LOOP_SET_FD, 3 [pid 5837] mount("/dev/loop4", "./file0", "jfs", 0, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5835] close(3 [pid 5834] <... openat resumed>) = 4 [pid 5834] ioctl(4, LOOP_SET_FD, 3 [pid 5835] <... close resumed>) = 0 [pid 5832] <... ioctl resumed>) = 0 [pid 5835] close(4 [pid 5836] <... munmap resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5835] mkdir("./file0", 0777) = 0 [pid 5835] mount("/dev/loop3", "./file0", "jfs", 0, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5836] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5832] close(3 [pid 5837] <... mount resumed>) = 0 [pid 5836] <... openat resumed>) = 4 [pid 5832] <... close resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5836] ioctl(4, LOOP_SET_FD, 3 [pid 5832] close(4 [pid 5837] <... openat resumed>) = 3 [pid 5832] <... close resumed>) = 0 [ 91.406302][ T5835] loop3: detected capacity change from 0 to 32768 [ 91.437077][ T5832] loop0: detected capacity change from 0 to 32768 [ 91.437813][ T5834] loop2: detected capacity change from 0 to 32768 [pid 5834] <... ioctl resumed>) = 0 [pid 5834] close(3) = 0 [pid 5834] close(4) = 0 [pid 5834] mkdir("./file0", 0777) = 0 [pid 5832] mkdir("./file0", 0777 [pid 5834] mount("/dev/loop2", "./file0", "jfs", 0, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5837] chdir("./file0" [pid 5832] <... mkdir resumed>) = 0 [pid 5837] <... chdir resumed>) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5832] mount("/dev/loop0", "./file0", "jfs", 0, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5835] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5837] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] <... openat resumed>) = 3 [pid 5837] exit_group(0 [pid 5835] chdir("./file0" [pid 5837] <... exit_group resumed>) = ? [pid 5835] <... chdir resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5834] chdir("./file0") = 0 [pid 5837] +++ exited with 0 +++ [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5834] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5836] <... ioctl resumed>) = 0 [pid 5835] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- [pid 5835] exit_group(0 [pid 5831] restart_syscall(<... resuming interrupted clone ...> [pid 5835] <... exit_group resumed>) = ? [pid 5834] exit_group(0 [pid 5831] <... restart_syscall resumed>) = 0 [pid 5836] close(3 [pid 5834] <... exit_group resumed>) = ? [pid 5836] <... close resumed>) = 0 [pid 5831] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] +++ exited with 0 +++ [pid 5831] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] close(4 [pid 5831] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] <... close resumed>) = 0 [pid 5835] +++ exited with 0 +++ [pid 5831] <... openat resumed>) = 3 [pid 5829] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=19 /* 0.19 s */} --- [pid 5836] mkdir("./file0", 0777 [pid 5832] <... mount resumed>) = 0 [pid 5831] newfstatat(3, "", [pid 5830] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 s */} --- [pid 5829] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5831] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5830] restart_syscall(<... resuming interrupted clone ...> [pid 5829] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5832] <... openat resumed>) = 3 [pid 5831] getdents64(3, [pid 5830] <... restart_syscall resumed>) = 0 [ 91.478599][ T5836] loop1: detected capacity change from 0 to 32768 [pid 5829] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] <... mkdir resumed>) = 0 [pid 5832] chdir("./file0" [pid 5831] <... getdents64 resumed>0x55557374e6f0 /* 4 entries */, 32768) = 112 [pid 5829] <... openat resumed>) = 3 [pid 5836] mount("/dev/loop1", "./file0", "jfs", 0, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5832] <... chdir resumed>) = 0 [pid 5831] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5829] newfstatat(3, "", [pid 5830] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5829] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5830] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5829] getdents64(3, [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5830] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5829] <... getdents64 resumed>0x55557374e6f0 /* 4 entries */, 32768) = 112 [pid 5832] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5830] <... openat resumed>) = 3 [pid 5829] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5832] exit_group(0 [pid 5830] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5832] <... exit_group resumed>) = ? [pid 5830] getdents64(3, 0x55557374e6f0 /* 4 entries */, 32768) = 112 [pid 5832] +++ exited with 0 +++ [pid 5830] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5827] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5827] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5827] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5827] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5827] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5827] getdents64(3, 0x55557374e6f0 /* 4 entries */, 32768) = 112 [ 91.569940][ T5827] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI [ 91.581877][ T5827] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 91.590344][ T5827] CPU: 1 UID: 0 PID: 5827 Comm: syz-executor145 Not tainted 6.15.0-rc7-syzkaller-00014-gd608703fcdd9 #0 PREEMPT(full) [ 91.602789][ T5827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 91.612874][ T5827] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 91.617952][ T5827] Code: e3 bb fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 e0 70 e5 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 c4 70 e5 fe 49 8b 3f e8 8c e3 bb fe [ 91.637585][ T5827] RSP: 0018:ffffc900043a7a40 EFLAGS: 00010206 [ 91.643682][ T5827] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88807b1d1e00 [ 91.651676][ T5827] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 91.659671][ T5827] RBP: ffffc900043a7b48 R08: ffffc900043a799f R09: 0000000000000000 [ 91.667665][ T5827] R10: ffffc900043a7828 R11: fffff52000874f34 R12: ffff888031b1b800 [ 91.675669][ T5827] R13: dffffc0000000000 R14: ffff88814045e438 R15: 0000000000000030 [ 91.683663][ T5827] FS: 000055557374d380(0000) GS:ffff8881261f6000(0000) knlGS:0000000000000000 [ 91.692612][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.699298][ T5827] CR2: 00007f18f3ff6000 CR3: 0000000078440000 CR4: 00000000003526f0 [ 91.707292][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.715280][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.723269][ T5827] Call Trace: [ 91.726564][ T5827] [ 91.729518][ T5827] ? __pfx___mutex_lock+0x10/0x10 [ 91.734584][ T5827] ? __pfx_lmLogSync+0x10/0x10 [ 91.739370][ T5827] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 91.745290][ T5827] ? __pfx___writeback_inodes_sb_nr+0x10/0x10 [ 91.751383][ T5827] jfs_syncpt+0x7b/0x90 [ 91.755564][ T5827] jfs_sync_fs+0x87/0xa0 [ 91.759838][ T5827] sync_filesystem+0xee/0x230 [ 91.764629][ T5827] generic_shutdown_super+0x6f/0x2c0 [ 91.769939][ T5827] kill_block_super+0x44/0x90 [ 91.774654][ T5827] deactivate_locked_super+0xbc/0x130 [ 91.780043][ T5827] cleanup_mnt+0x425/0x4c0 [ 91.784463][ T5827] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.789673][ T5827] task_work_run+0x1d4/0x260 [ 91.794273][ T5827] ? __pfx_task_work_run+0x10/0x10 [ 91.799389][ T5827] ? path_umount+0x249/0xf70 [ 91.803986][ T5827] ptrace_notify+0x281/0x2c0 [ 91.808587][ T5827] ? __pfx_ptrace_notify+0x10/0x10 [ 91.813705][ T5827] ? __pfx_path_umount+0x10/0x10 [ 91.818650][ T5827] ? user_path_at+0x44/0x60 [ 91.823159][ T5827] syscall_exit_work+0xc2/0x1d0 [ 91.828020][ T5827] syscall_exit_to_user_mode_prepare+0x6f/0xe0 [ 91.834186][ T5827] syscall_exit_to_user_mode+0x12/0x120 [ 91.839756][ T5827] do_syscall_64+0x103/0x210 [ 91.844359][ T5827] ? clear_bhb_loop+0x60/0xb0 [ 91.849049][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.854944][ T5827] RIP: 0033:0x7fc125904477 [ 91.859367][ T5827] 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 [ 91.878971][ T5827] RSP: 002b:00007ffe751c2f18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 91.887385][ T5827] RAX: 0000000000000000 RBX: 00000000000161b8 RCX: 00007fc125904477 [ 91.895353][ T5827] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe751c2fd0 [ 91.903319][ T5827] RBP: 00007ffe751c2fd0 R08: 0000000000000000 R09: 0000000000000000 [ 91.911285][ T5827] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe751c4040 [pid 5827] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... mount resumed>) = 0 [pid 5836] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5836] chdir("./file0") = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5836] exit_group(0) = ? [pid 5836] +++ exited with 0 +++ [ 91.919254][ T5827] R13: 000055557374e6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 91.927232][ T5827] [ 91.930246][ T5827] Modules linked in: [ 91.934745][ T976] cfg80211: failed to load regulatory.db [ 91.934780][ T5827] ---[ end trace 0000000000000000 ]--- [pid 5828] --- 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=26 /* 0.26 s */} --- [pid 5828] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5828] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5828] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5828] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5828] getdents64(3, 0x55557374e6f0 /* 4 entries */, 32768) = 112 [ 91.993534][ T5827] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 91.998652][ T5827] Code: e3 bb fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 e0 70 e5 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 c4 70 e5 fe 49 8b 3f e8 8c e3 bb fe [ 92.019530][ T5827] RSP: 0018:ffffc900043a7a40 EFLAGS: 00010206 [ 92.027570][ T5827] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88807b1d1e00 [ 92.035788][ T5827] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.043772][ T5827] RBP: ffffc900043a7b48 R08: ffffc900043a799f R09: 0000000000000000 [ 92.051902][ T5827] R10: ffffc900043a7828 R11: fffff52000874f34 R12: ffff888031b1b800 [ 92.060565][ T5827] R13: dffffc0000000000 R14: ffff88814045e438 R15: 0000000000000030 [ 92.068719][ T5827] FS: 000055557374d380(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 92.077743][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.084348][ T5827] CR2: 00007f18f400e000 CR3: 0000000078440000 CR4: 00000000003526f0 [ 92.092619][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.100624][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.108649][ T5827] Kernel panic - not syncing: Fatal exception [ 92.115020][ T5827] Kernel Offset: disabled [ 92.119338][ T5827] Rebooting in 86400 seconds..