./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1853150059 <...> no interfaces have a carrier [ 55.737097][ T5493] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.762619][ T5493] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.103' (ED25519) to the list of known hosts. execve("./syz-executor1853150059", ["./syz-executor1853150059"], 0x7fff3bcdda20 /* 10 vars */) = 0 brk(NULL) = 0x55557e7e1000 brk(0x55557e7e1d00) = 0x55557e7e1d00 arch_prctl(ARCH_SET_FS, 0x55557e7e1380) = 0 set_tid_address(0x55557e7e1650) = 5832 set_robust_list(0x55557e7e1660, 24) = 0 rseq(0x55557e7e1ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1853150059", 4096) = 28 getrandom("\x6d\x33\x65\x84\xc6\x83\x17\xa0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557e7e1d00 brk(0x55557e802d00) = 0x55557e802d00 brk(0x55557e803000) = 0x55557e803000 mprotect(0x7f55187e3000, 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 5833 attached [pid 5833] set_robust_list(0x55557e7e1660, 24 [pid 5832] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5833 [pid 5833] <... set_robust_list resumed>) = 0 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] mkdir("./syzkaller.gJA3bc", 0700./strace-static-x86_64: Process 5834 attached ) = 0 [pid 5832] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5834 [pid 5834] set_robust_list(0x55557e7e1660, 24 [pid 5833] chmod("./syzkaller.gJA3bc", 0777 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... set_robust_list resumed>) = 0 [pid 5833] <... chmod resumed>) = 0 [pid 5834] mkdir("./syzkaller.7YAmDb", 0700 [pid 5833] chdir("./syzkaller.gJA3bc"./strace-static-x86_64: Process 5835 attached [pid 5832] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5835 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... chdir resumed>) = 0 [pid 5834] chmod("./syzkaller.7YAmDb", 0777) = 0 [pid 5834] chdir("./syzkaller.7YAmDb" [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] set_robust_list(0x55557e7e1660, 24 [pid 5833] mkdir("./0", 0777 [pid 5834] <... chdir resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5836 attached [pid 5835] <... set_robust_list resumed>) = 0 [pid 5834] mkdir("./0", 0777 [pid 5832] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5836 [pid 5835] mkdir("./syzkaller.UXcRzf", 0700 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] set_robust_list(0x55557e7e1660, 24 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5836] <... set_robust_list resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5837 attached [pid 5836] mkdir("./syzkaller.OODlAQ", 0700 [pid 5835] chmod("./syzkaller.UXcRzf", 0777 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5833] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5832] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5837 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] <... chmod resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5837] set_robust_list(0x55557e7e1660, 24 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] chdir("./syzkaller.UXcRzf" [pid 5833] close(3 [pid 5834] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5838 attached [pid 5837] <... set_robust_list resumed>) = 0 [pid 5836] chmod("./syzkaller.OODlAQ", 0777 [pid 5835] <... chdir resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5832] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5838 [pid 5838] set_robust_list(0x55557e7e1660, 24 [pid 5834] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5838] <... set_robust_list resumed>) = 0 [pid 5837] mkdir("./syzkaller.X2t3md", 0700 [pid 5835] mkdir("./0", 0777 [pid 5838] mkdir("./syzkaller.UvgUjk", 0700 [pid 5836] <... chmod resumed>) = 0 [pid 5834] close(3) = 0 [pid 5838] <... mkdir resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5836] chdir("./syzkaller.OODlAQ" [pid 5835] <... mkdir resumed>) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] <... chdir resumed>) = 0 [pid 5838] chmod("./syzkaller.UvgUjk", 0777 [pid 5837] chmod("./syzkaller.X2t3md", 0777 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached ./strace-static-x86_64: Process 5840 attached [pid 5837] <... chmod resumed>) = 0 [pid 5836] mkdir("./0", 0777 [pid 5835] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5838] <... chmod resumed>) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5841] set_robust_list(0x55557e7e1660, 24 [pid 5840] set_robust_list(0x55557e7e1660, 24 [pid 5838] chdir("./syzkaller.UvgUjk" [pid 5837] chdir("./syzkaller.X2t3md" [pid 5836] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5835] <... openat resumed>) = 3 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5840] <... set_robust_list resumed>) = 0 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5833] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5840 [pid 5841] chdir("./0" [pid 5840] chdir("./0" [pid 5838] <... chdir resumed>) = 0 [pid 5837] <... chdir resumed>) = 0 [pid 5835] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5841] <... chdir resumed>) = 0 [pid 5840] <... chdir resumed>) = 0 [pid 5838] mkdir("./0", 0777 [pid 5837] mkdir("./0", 0777 [pid 5836] <... openat resumed>) = 3 [pid 5835] close(3 [pid 5834] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5841 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5838] <... mkdir resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5838] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5841] <... prctl resumed>) = 0 [pid 5840] <... prctl resumed>) = 0 [pid 5838] <... openat resumed>) = 3 [pid 5837] <... openat resumed>) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5835] <... close resumed>) = 0 [pid 5841] setpgid(0, 0 [pid 5838] ioctl(3, LOOP_CLR_FD [pid 5837] ioctl(3, LOOP_CLR_FD [pid 5840] setpgid(0, 0 [pid 5836] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5841] <... setpgid resumed>) = 0 [pid 5840] <... setpgid resumed>) = 0 [pid 5836] close(3 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5838] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5837] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5836] <... close resumed>) = 0 [pid 5838] close(3 [pid 5837] close(3 [pid 5841] <... openat resumed>) = 3 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5838] <... close resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached ./strace-static-x86_64: Process 5843 attached ./strace-static-x86_64: Process 5842 attached [pid 5841] write(3, "1000", 4 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5845 attached [pid 5842] set_robust_list(0x55557e7e1660, 24 [pid 5845] set_robust_list(0x55557e7e1660, 24 [pid 5844] set_robust_list(0x55557e7e1660, 24 [pid 5843] set_robust_list(0x55557e7e1660, 24 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5841] <... write resumed>) = 4 [pid 5840] <... openat resumed>) = 3 [pid 5838] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5845 [pid 5837] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5844 [pid 5836] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5842 [pid 5835] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5843 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5842] chdir("./0" [pid 5841] close(3 [pid 5840] write(3, "1000", 4 [pid 5845] chdir("./0" [pid 5844] chdir("./0" [pid 5843] chdir("./0" [pid 5841] <... close resumed>) = 0 [pid 5840] <... write resumed>) = 4 [pid 5845] <... chdir resumed>) = 0 [pid 5844] <... chdir resumed>) = 0 [pid 5842] <... chdir resumed>) = 0 [pid 5841] symlink("/dev/binderfs", "./binderfs" [pid 5840] close(3 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] <... chdir resumed>) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] <... prctl resumed>) = 0 [pid 5844] <... prctl resumed>) = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... prctl resumed>) = 0 [pid 5841] <... symlink resumed>) = 0 [pid 5840] <... close resumed>) = 0 [pid 5845] setpgid(0, 0 [pid 5844] setpgid(0, 0) = 0 executing program [pid 5845] <... setpgid resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] <... prctl resumed>) = 0 [pid 5842] setpgid(0, 0 [pid 5841] write(1, "executing program\n", 18 [pid 5840] symlink("/dev/binderfs", "./binderfs" [pid 5841] <... write resumed>) = 18 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... openat resumed>) = 3 [pid 5843] setpgid(0, 0 [pid 5842] <... setpgid resumed>) = 0 [pid 5841] memfd_create("syzkaller", 0 [pid 5840] <... symlink resumed>) = 0 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] <... setpgid resumed>) = 0 [pid 5841] <... memfd_create resumed>) = 3 [pid 5845] <... openat resumed>) = 3 [pid 5844] symlink("/dev/binderfs", "./binderfs" executing program [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... openat resumed>) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] write(1, "executing program\n", 18 [pid 5845] write(3, "1000", 4 [pid 5844] <... symlink resumed>) = 0 [pid 5843] <... openat resumed>) = 3 [pid 5842] write(3, "1000", 4 [pid 5841] <... mmap resumed>) = 0x7f5510200000 [pid 5840] <... write resumed>) = 18 [pid 5845] <... write resumed>) = 4 executing program [pid 5844] write(1, "executing program\n", 18 [pid 5843] write(3, "1000", 4 [pid 5842] <... write resumed>) = 4 [pid 5845] close(3 [pid 5844] <... write resumed>) = 18 [pid 5843] <... write resumed>) = 4 [pid 5840] memfd_create("syzkaller", 0 [pid 5842] close(3 [pid 5845] <... close resumed>) = 0 [pid 5844] memfd_create("syzkaller", 0 [pid 5843] close(3 [pid 5845] symlink("/dev/binderfs", "./binderfs" [pid 5844] <... memfd_create resumed>) = 3 [pid 5842] <... close resumed>) = 0 [pid 5840] <... memfd_create resumed>) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5843] <... close resumed>) = 0 [pid 5845] <... symlink resumed>) = 0 [pid 5844] <... mmap resumed>) = 0x7f5510200000 [pid 5843] symlink("/dev/binderfs", "./binderfs" [pid 5842] symlink("/dev/binderfs", "./binderfs" [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] write(1, "executing program\n", 18executing program ) = 18 [pid 5840] <... mmap resumed>) = 0x7f5510200000 [pid 5845] memfd_create("syzkaller", 0 [pid 5842] <... symlink resumed>) = 0 [pid 5843] <... symlink resumed>) = 0 [pid 5845] <... memfd_create resumed>) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 executing program [pid 5843] write(1, "executing program\n", 18 [pid 5842] write(1, "executing program\n", 18 [pid 5845] <... mmap resumed>) = 0x7f5510200000 [pid 5843] <... write resumed>) = 18 [pid 5843] memfd_create("syzkaller", 0executing program [pid 5842] <... write resumed>) = 18 [pid 5843] <... memfd_create resumed>) = 3 [pid 5842] memfd_create("syzkaller", 0 [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5842] <... memfd_create resumed>) = 3 [pid 5843] <... mmap resumed>) = 0x7f5510200000 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5510200000 [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 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 5843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5844] <... write resumed>) = 16777216 [pid 5840] <... write resumed>) = 16777216 [pid 5844] munmap(0x7f5510200000, 138412032 [pid 5840] munmap(0x7f5510200000, 138412032) = 0 [pid 5844] <... munmap resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5844] ioctl(4, LOOP_SET_FD, 3 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5840] ioctl(4, LOOP_SET_FD, 3 [pid 5844] <... ioctl resumed>) = 0 [pid 5844] close(3) = 0 [pid 5844] close(4 [pid 5840] <... ioctl resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5840] close(3 [pid 5844] mkdir("./file0", 0777 [pid 5840] <... close resumed>) = 0 [pid 5840] close(4 [pid 5844] <... mkdir resumed>) = 0 [pid 5843] <... write resumed>) = 16777216 [pid 5840] <... close resumed>) = 0 [pid 5844] mount("/dev/loop4", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5843] munmap(0x7f5510200000, 138412032 [pid 5840] mkdir("./file0", 0777) = 0 syzkaller login: [ 89.744766][ T5844] loop4: detected capacity change from 0 to 32768 [ 89.756603][ T5840] loop0: detected capacity change from 0 to 32768 [pid 5840] mount("/dev/loop0", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5844] <... mount resumed>) = 0 [pid 5844] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5840] <... mount resumed>) = 0 [pid 5844] chdir("./file0") = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5840] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5844] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5840] <... openat resumed>) = 3 [pid 5844] exit_group(0 [pid 5840] chdir("./file0" [pid 5844] <... exit_group resumed>) = ? [pid 5840] <... chdir resumed>) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5844] +++ exited with 0 +++ [pid 5843] <... munmap resumed>) = 0 [pid 5840] exit_group(0 [pid 5843] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5840] <... exit_group resumed>) = ? [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=24 /* 0.24 s */} --- [pid 5843] <... openat resumed>) = 4 [pid 5843] ioctl(4, LOOP_SET_FD, 3 [pid 5837] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5837] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5845] <... write resumed>) = 16777216 [pid 5845] munmap(0x7f5510200000, 138412032 [pid 5842] <... write resumed>) = 16777216 [pid 5840] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=25 /* 0.25 s */} --- [pid 5837] <... umount2 resumed>) = 0 [pid 5837] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5843] <... ioctl resumed>) = 0 [pid 5842] munmap(0x7f5510200000, 138412032 [pid 5837] newfstatat(AT_FDCWD, "./0/file0", [pid 5833] newfstatat(3, "", [pid 5843] close(3) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5843] close(4 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5843] <... close resumed>) = 0 [pid 5833] getdents64(3, [pid 5837] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] mkdir("./file0", 0777 [pid 5833] <... getdents64 resumed>0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5843] <... mkdir resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] mount("/dev/loop2", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5837] <... openat resumed>) = 4 [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 89.857170][ T5843] loop2: detected capacity change from 0 to 32768 [pid 5837] getdents64(4, 0x55557e7ea730 /* 2 entries */, 32768) = 48 [pid 5833] <... umount2 resumed>) = 0 [pid 5843] <... mount resumed>) = 0 [pid 5837] getdents64(4, [pid 5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5837] <... getdents64 resumed>0x55557e7ea730 /* 0 entries */, 32768) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5843] <... openat resumed>) = 3 [pid 5837] close(4 [pid 5833] newfstatat(AT_FDCWD, "./0/file0", [pid 5843] chdir("./file0" [pid 5837] <... close resumed>) = 0 [pid 5843] <... chdir resumed>) = 0 [pid 5841] <... write resumed>) = 16777216 [pid 5837] rmdir("./0/file0" [pid 5833] <... newfstatat resumed>{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 5843] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5837] <... rmdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5843] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5843] exit_group(0) = ? [pid 5833] <... openat resumed>) = 4 [pid 5841] munmap(0x7f5510200000, 138412032 [pid 5843] +++ exited with 0 +++ [pid 5837] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] newfstatat(4, "", [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- [pid 5835] restart_syscall(<... resuming interrupted clone ...> [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5845] <... munmap resumed>) = 0 [pid 5833] getdents64(4, [pid 5845] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... getdents64 resumed>0x55557e7ea730 /* 2 entries */, 32768) = 48 [pid 5845] <... openat resumed>) = 4 [pid 5833] getdents64(4, [pid 5837] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5833] <... getdents64 resumed>0x55557e7ea730 /* 0 entries */, 32768) = 0 [pid 5845] ioctl(4, LOOP_SET_FD, 3 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] close(4 [pid 5842] <... munmap resumed>) = 0 [pid 5837] unlink("./0/binderfs" [pid 5835] <... restart_syscall resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5833] rmdir("./0/file0" [pid 5835] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5842] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5837] <... unlink resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... rmdir resumed>) = 0 [pid 5837] getdents64(3, [pid 5835] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5842] <... openat resumed>) = 4 [pid 5837] <... getdents64 resumed>0x55557e7e26f0 /* 0 entries */, 32768) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] ioctl(4, LOOP_SET_FD, 3 [pid 5837] close(3 [pid 5835] newfstatat(3, "", [pid 5833] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5837] <... close resumed>) = 0 [pid 5837] rmdir("./0" [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5845] <... ioctl resumed>) = 0 [pid 5835] getdents64(3, [pid 5833] unlink("./0/binderfs" [pid 5845] close(3) = 0 [pid 5845] close(4) = 0 [pid 5835] <... getdents64 resumed>0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5833] <... unlink resumed>) = 0 [pid 5845] mkdir("./file0", 0777 [pid 5837] <... rmdir resumed>) = 0 [pid 5833] getdents64(3, [pid 5845] <... mkdir resumed>) = 0 [pid 5841] <... munmap resumed>) = 0 [pid 5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5845] mount("/dev/loop5", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5837] mkdir("./1", 0777 [pid 5833] <... getdents64 resumed>0x55557e7e26f0 /* 0 entries */, 32768) = 0 [pid 5833] close(3 [pid 5841] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] <... mkdir resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5833] rmdir("./0" [pid 5841] <... openat resumed>) = 4 [ 89.953207][ T5845] loop5: detected capacity change from 0 to 32768 [ 89.975331][ T5842] loop3: detected capacity change from 0 to 32768 [pid 5841] ioctl(4, LOOP_SET_FD, 3 [pid 5833] <... rmdir resumed>) = 0 [pid 5833] mkdir("./1", 0777 [pid 5835] <... umount2 resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5837] ioctl(3, LOOP_CLR_FD [pid 5835] newfstatat(AT_FDCWD, "./0/file0", [pid 5837] <... ioctl resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5837] close(3 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5837] <... close resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5852 attached [pid 5841] <... ioctl resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] close(3 [pid 5841] close(3 [pid 5837] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5852 [pid 5835] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5841] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 4 [pid 5833] <... close resumed>) = 0 [pid 5852] set_robust_list(0x55557e7e1660, 24 [pid 5841] close(4 [pid 5835] newfstatat(4, "", [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5852] <... set_robust_list resumed>) = 0 [pid 5841] <... close resumed>) = 0 [pid 5852] chdir("./1" [pid 5841] mkdir("./file0", 0777 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5845] <... mount resumed>) = 0 [pid 5841] <... mkdir resumed>) = 0 [pid 5835] getdents64(4, ./strace-static-x86_64: Process 5853 attached [pid 5845] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5842] <... ioctl resumed>) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5853 [pid 5852] <... chdir resumed>) = 0 [pid 5845] <... openat resumed>) = 3 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] chdir("./file0" [pid 5852] <... prctl resumed>) = 0 [pid 5845] <... chdir resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5835] <... getdents64 resumed>0x55557e7ea730 /* 2 entries */, 32768) = 48 [pid 5853] set_robust_list(0x55557e7e1660, 24 [pid 5842] close(3 [pid 5835] getdents64(4, [pid 5853] <... set_robust_list resumed>) = 0 [pid 5842] <... close resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55557e7ea730 /* 0 entries */, 32768) = 0 [pid 5842] close(4 [pid 5853] chdir("./1" [pid 5852] setpgid(0, 0 [pid 5845] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5842] <... close resumed>) = 0 [pid 5835] close(4 [ 89.999109][ T5841] loop1: detected capacity change from 0 to 32768 [pid 5842] mkdir("./file0", 0777 [pid 5852] <... setpgid resumed>) = 0 [pid 5845] exit_group(0 [pid 5835] <... close resumed>) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... exit_group resumed>) = ? [pid 5842] <... mkdir resumed>) = 0 [pid 5835] rmdir("./0/file0" [pid 5853] <... chdir resumed>) = 0 [pid 5852] <... openat resumed>) = 3 [pid 5845] +++ exited with 0 +++ [pid 5841] mount("/dev/loop1", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5835] <... rmdir resumed>) = 0 [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5852] write(3, "1000", 4 [pid 5842] mount("/dev/loop3", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5835] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] <... prctl resumed>) = 0 [pid 5852] <... write resumed>) = 4 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5853] setpgid(0, 0 [pid 5852] close(3 [pid 5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 s */} --- [pid 5853] <... setpgid resumed>) = 0 [pid 5852] <... close resumed>) = 0 [pid 5838] restart_syscall(<... resuming interrupted clone ...> [pid 5835] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5852] symlink("/dev/binderfs", "./binderfs" [pid 5838] <... restart_syscall resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5853] <... openat resumed>) = 3 [pid 5852] <... symlink resumed>) = 0 [pid 5835] unlink("./0/binderfs" [pid 5853] write(3, "1000", 4executing program [pid 5852] write(1, "executing program\n", 18 [pid 5853] <... write resumed>) = 4 [pid 5852] <... write resumed>) = 18 [pid 5838] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... unlink resumed>) = 0 [pid 5853] close(3 [pid 5852] memfd_create("syzkaller", 0 [pid 5838] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5853] <... close resumed>) = 0 [pid 5838] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] getdents64(3, [pid 5853] symlink("/dev/binderfs", "./binderfs" [pid 5838] <... openat resumed>) = 3 [pid 5853] <... symlink resumed>) = 0 [pid 5852] <... memfd_create resumed>) = 3 executing program [pid 5838] newfstatat(3, "", [pid 5835] <... getdents64 resumed>0x55557e7e26f0 /* 0 entries */, 32768) = 0 [pid 5853] write(1, "executing program\n", 18 [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5853] <... write resumed>) = 18 [pid 5852] <... mmap resumed>) = 0x7f5510200000 [pid 5838] getdents64(3, [pid 5853] memfd_create("syzkaller", 0 [pid 5835] close(3 [pid 5838] <... getdents64 resumed>0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5841] <... mount resumed>) = 0 [pid 5838] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... close resumed>) = 0 [pid 5853] <... memfd_create resumed>) = 3 [pid 5841] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5835] rmdir("./0" [pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5841] <... openat resumed>) = 3 [pid 5853] <... mmap resumed>) = 0x7f5510200000 [pid 5841] chdir("./file0" [pid 5842] <... mount resumed>) = 0 [pid 5841] <... chdir resumed>) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5842] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5841] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] mkdir("./1", 0777 [pid 5842] <... openat resumed>) = 3 [pid 5841] exit_group(0) = ? [pid 5842] chdir("./file0" [pid 5841] +++ exited with 0 +++ [pid 5835] <... mkdir resumed>) = 0 [pid 5842] <... chdir resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5842] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5835] <... openat resumed>) = 3 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- [pid 5842] exit_group(0 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... exit_group resumed>) = ? [pid 5835] <... ioctl resumed>) = 0 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5835] close(3 [pid 5842] +++ exited with 0 +++ [pid 5835] <... close resumed>) = 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=21 /* 0.21 s */} --- [pid 5834] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... getdents64 resumed>0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5834] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5838] <... umount2 resumed>) = 0 [pid 5838] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5856 attached ) = -1 EINVAL (Invalid argument) [pid 5835] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5856 [pid 5838] newfstatat(AT_FDCWD, "./0/file0", [pid 5836] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5838] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... openat resumed>) = 3 [pid 5856] set_robust_list(0x55557e7e1660, 24 [pid 5838] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(3, "", [pid 5856] <... set_robust_list resumed>) = 0 [pid 5838] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5856] chdir("./1" [pid 5838] <... openat resumed>) = 4 [pid 5836] getdents64(3, [pid 5834] <... umount2 resumed>) = 0 [pid 5838] newfstatat(4, "", [pid 5836] <... getdents64 resumed>0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5834] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5856] <... chdir resumed>) = 0 [pid 5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5836] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] getdents64(4, [pid 5834] newfstatat(AT_FDCWD, "./0/file0", [pid 5856] setpgid(0, 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5856] <... setpgid resumed>) = 0 [pid 5838] <... getdents64 resumed>0x55557e7ea730 /* 2 entries */, 32768) = 48 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5838] getdents64(4, [pid 5856] <... openat resumed>) = 3 [pid 5838] <... getdents64 resumed>0x55557e7ea730 /* 0 entries */, 32768) = 0 [pid 5834] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5838] close(4 [pid 5834] newfstatat(4, "", [pid 5856] write(3, "1000", 4 [pid 5838] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5838] rmdir("./0/file0" [pid 5834] getdents64(4, [pid 5856] <... write resumed>) = 4 [pid 5838] <... rmdir resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55557e7ea730 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, [pid 5856] close(3 [pid 5834] <... getdents64 resumed>0x55557e7ea730 /* 0 entries */, 32768) = 0 [pid 5856] <... close resumed>) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./0/file0" [pid 5856] symlink("/dev/binderfs", "./binderfs" [pid 5838] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... rmdir resumed>) = 0 [pid 5838] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5838] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5856] <... symlink resumed>) = 0 [pid 5838] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5834] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./0/binderfs" [pid 5856] write(1, "executing program\n", 18 [pid 5834] <... unlink resumed>) = 0 [pid 5856] <... write resumed>) = 18 [pid 5856] memfd_create("syzkaller", 0 [pid 5838] unlink("./0/binderfs" [pid 5834] getdents64(3, [pid 5838] <... unlink resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55557e7e26f0 /* 0 entries */, 32768) = 0 [pid 5834] close(3 [pid 5838] getdents64(3, [pid 5834] <... close resumed>) = 0 [pid 5838] <... getdents64 resumed>0x55557e7e26f0 /* 0 entries */, 32768) = 0 [pid 5834] rmdir("./0" [pid 5838] close(3 [pid 5834] <... rmdir resumed>) = 0 [pid 5838] <... close resumed>) = 0 [pid 5834] mkdir("./1", 0777 [pid 5838] rmdir("./0" [pid 5834] <... mkdir resumed>) = 0 [pid 5856] <... memfd_create resumed>) = 3 [pid 5838] <... rmdir resumed>) = 0 [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5510200000 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5838] mkdir("./1", 0777 [pid 5834] <... openat resumed>) = 3 [pid 5838] <... mkdir resumed>) = 0 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5838] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5857 attached ) = 3 [pid 5838] ioctl(3, LOOP_CLR_FD) = 0 [pid 5838] close(3) = 0 [pid 5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5857 [pid 5857] set_robust_list(0x55557e7e1660, 24 [pid 5836] <... umount2 resumed>) = 0 [pid 5836] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5858 attached ) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5857] <... set_robust_list resumed>) = 0 [pid 5836] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5858] set_robust_list(0x55557e7e1660, 24 [pid 5857] chdir("./1" [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5858] <... set_robust_list resumed>) = 0 [pid 5857] <... chdir resumed>) = 0 [pid 5836] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5857] setpgid(0, 0 [pid 5836] <... openat resumed>) = 4 [pid 5858] chdir("./1" [pid 5857] <... setpgid resumed>) = 0 [pid 5838] <... clone resumed>, child_tidptr=0x55557e7e1650) = 5858 [pid 5836] newfstatat(4, "", [pid 5858] <... chdir resumed>) = 0 [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5836] getdents64(4, [pid 5858] <... prctl resumed>) = 0 [pid 5857] <... openat resumed>) = 3 [pid 5836] <... getdents64 resumed>0x55557e7ea730 /* 2 entries */, 32768) = 48 [pid 5858] setpgid(0, 0 [pid 5836] getdents64(4, 0x55557e7ea730 /* 0 entries */, 32768) = 0 [pid 5857] write(3, "1000", 4 [pid 5858] <... setpgid resumed>) = 0 [pid 5857] <... write resumed>) = 4 [pid 5857] close(3 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5857] <... close resumed>) = 0 [pid 5836] close(4 [pid 5858] <... openat resumed>) = 3 [pid 5857] symlink("/dev/binderfs", "./binderfs" [pid 5836] <... close resumed>) = 0 [pid 5836] rmdir("./0/file0" [pid 5857] <... symlink resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 executing program [pid 5858] write(3, "1000", 4 [pid 5857] write(1, "executing program\n", 18 [pid 5836] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5858] <... write resumed>) = 4 [pid 5857] <... write resumed>) = 18 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5858] close(3 [pid 5836] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5858] <... close resumed>) = 0 [pid 5857] memfd_create("syzkaller", 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5858] symlink("/dev/binderfs", "./binderfs" [pid 5836] unlink("./0/binderfs" [pid 5857] <... memfd_create resumed>) = 3 [pid 5836] <... unlink resumed>) = 0 [pid 5836] getdents64(3, [pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5858] <... symlink resumed>) = 0 [pid 5857] <... mmap resumed>) = 0x7f5510200000 executing program [pid 5858] write(1, "executing program\n", 18 [pid 5836] <... getdents64 resumed>0x55557e7e26f0 /* 0 entries */, 32768) = 0 [pid 5858] <... write resumed>) = 18 [pid 5858] memfd_create("syzkaller", 0 [pid 5836] close(3) = 0 [pid 5858] <... memfd_create resumed>) = 3 [pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5836] rmdir("./0" [pid 5858] <... mmap resumed>) = 0x7f5510200000 [pid 5836] <... rmdir resumed>) = 0 [pid 5836] mkdir("./1", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [pid 5836] close(3) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5859 attached , child_tidptr=0x55557e7e1650) = 5859 [pid 5859] set_robust_list(0x55557e7e1660, 24) = 0 [pid 5859] chdir("./1") = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5859] setpgid(0, 0) = 0 [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5859] write(3, "1000", 4) = 4 [pid 5859] close(3) = 0 [pid 5859] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5859] write(1, "executing program\n", 18) = 18 [pid 5859] memfd_create("syzkaller", 0 [pid 5852] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5859] <... memfd_create resumed>) = 3 [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5510200000 [pid 5853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5856] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5858] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [ 91.144710][ T972] cfg80211: failed to load regulatory.db [pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5852] <... write resumed>) = 16777216 [pid 5852] munmap(0x7f5510200000, 138412032 [pid 5853] <... write resumed>) = 16777216 [pid 5853] munmap(0x7f5510200000, 138412032 [pid 5852] <... munmap resumed>) = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5856] <... write resumed>) = 16777216 [pid 5852] <... openat resumed>) = 4 [pid 5852] ioctl(4, LOOP_SET_FD, 3 [pid 5856] munmap(0x7f5510200000, 138412032 [pid 5853] <... munmap resumed>) = 0 [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5853] ioctl(4, LOOP_SET_FD, 3 [pid 5852] <... ioctl resumed>) = 0 [pid 5852] close(3 [pid 5857] <... write resumed>) = 16777216 [pid 5852] <... close resumed>) = 0 [pid 5852] close(4) = 0 [pid 5852] mkdir("./file0", 0777) = 0 [pid 5852] mount("/dev/loop4", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5857] munmap(0x7f5510200000, 138412032 [pid 5853] <... ioctl resumed>) = 0 [pid 5853] close(3) = 0 [pid 5853] close(4) = 0 [pid 5858] <... write resumed>) = 16777216 [pid 5853] mkdir("./file0", 0777 [pid 5858] munmap(0x7f5510200000, 138412032 [pid 5853] <... mkdir resumed>) = 0 [pid 5853] mount("/dev/loop0", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5852] <... mount resumed>) = 0 [pid 5852] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5857] <... munmap resumed>) = 0 [pid 5852] <... openat resumed>) = 3 [pid 5852] chdir("./file0") = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5852] exit_group(0) = ? [pid 5852] +++ exited with 0 +++ [pid 5857] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- [pid 5837] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5837] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 91.502099][ T5852] loop4: detected capacity change from 0 to 32768 [ 91.521950][ T5853] loop0: detected capacity change from 0 to 32768 [pid 5837] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5857] <... openat resumed>) = 4 [pid 5856] <... munmap resumed>) = 0 [pid 5853] <... mount resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5853] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, [pid 5857] ioctl(4, LOOP_SET_FD, 3 [pid 5853] <... openat resumed>) = 3 [pid 5837] <... getdents64 resumed>0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5837] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5853] chdir("./file0" [pid 5858] <... munmap resumed>) = 0 [pid 5853] <... chdir resumed>) = 0 [pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5856] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5853] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5858] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5856] ioctl(4, LOOP_SET_FD, 3 [pid 5853] exit_group(0 [pid 5858] <... openat resumed>) = 4 [pid 5857] <... ioctl resumed>) = 0 [pid 5853] <... exit_group resumed>) = ? [pid 5858] ioctl(4, LOOP_SET_FD, 3 [pid 5853] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=27 /* 0.27 s */} --- [pid 5833] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5857] close(3 [pid 5833] getdents64(3, [pid 5857] <... close resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55557e7e26f0 /* 4 entries */, 32768) = 112 [pid 5857] close(4 [pid 5833] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5857] <... close resumed>) = 0 [ 91.591731][ T5857] loop1: detected capacity change from 0 to 32768 [ 91.605495][ T5856] loop2: detected capacity change from 0 to 32768 [ 91.613855][ T5858] loop5: detected capacity change from 0 to 32768 [ 91.629879][ T5833] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI [ 91.641956][ T5833] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 91.650379][ T5833] CPU: 1 UID: 0 PID: 5833 Comm: syz-executor185 Not tainted 6.16.0-rc2-syzkaller-00045-g4663747812d1 #0 PREEMPT(full) [ 91.662798][ T5833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 91.672856][ T5833] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 91.677923][ T5833] Code: e6 b6 fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 70 a3 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 54 a3 e3 fe 49 8b 3f e8 9c e6 b6 fe [ 91.697535][ T5833] RSP: 0018:ffffc90003aefa80 EFLAGS: 00010216 [ 91.703601][ T5833] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff888079ad1e00 [ 91.711561][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 91.719524][ T5833] RBP: ffffc90003aefb88 R08: ffffc90003aef9df R09: ffffc90003aef868 [ 91.727518][ T5833] R10: dffffc0000000000 R11: fffff5200075df3c R12: ffff888033c74800 [ 91.735481][ T5833] R13: dffffc0000000000 R14: ffff88814c65ec38 R15: 0000000000000030 [ 91.743446][ T5833] FS: 000055557e7e1380(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000 [ 91.752367][ T5833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.758940][ T5833] CR2: 000055557e7ea6f8 CR3: 000000007647a000 CR4: 0000000000350ef0 [ 91.766915][ T5833] Call Trace: [ 91.770192][ T5833] [ 91.773118][ T5833] ? __pfx___mutex_lock+0x10/0x10 [ 91.778151][ T5833] ? __pfx_lmLogSync+0x10/0x10 [ 91.782946][ T5833] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 91.788838][ T5833] ? __pfx___writeback_inodes_sb_nr+0x10/0x10 [ 91.794907][ T5833] jfs_syncpt+0x7b/0x90 [ 91.799067][ T5833] jfs_sync_fs+0x87/0xa0 [ 91.803306][ T5833] sync_filesystem+0xee/0x230 [ 91.807988][ T5833] generic_shutdown_super+0x6f/0x2c0 [ 91.813276][ T5833] kill_block_super+0x44/0x90 [ 91.817945][ T5833] deactivate_locked_super+0xbc/0x130 [ 91.823318][ T5833] cleanup_mnt+0x425/0x4c0 [ 91.827751][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.833389][ T5833] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.838600][ T5833] task_work_run+0x1d4/0x260 [ 91.843205][ T5833] ? __pfx_task_work_run+0x10/0x10 [ 91.848311][ T5833] ? __x64_sys_umount+0x122/0x160 [ 91.853349][ T5833] ptrace_notify+0x281/0x2c0 [ 91.857948][ T5833] ? __pfx_ptrace_notify+0x10/0x10 [ 91.863064][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.868701][ T5833] ? __x64_sys_umount+0x122/0x160 [ 91.873720][ T5833] ? __pfx___x64_sys_umount+0x10/0x10 [ 91.879082][ T5833] ? rcu_is_watching+0x15/0xb0 [ 91.883854][ T5833] syscall_exit_work+0xc6/0x1d0 [ 91.888706][ T5833] do_syscall_64+0x2ad/0x3b0 [ 91.893288][ T5833] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.898493][ T5833] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.904550][ T5833] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.910177][ T5833] ? exc_page_fault+0x9f/0xf0 [ 91.914856][ T5833] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.920749][ T5833] RIP: 0033:0x7f551876a577 [ 91.925153][ T5833] 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 [ 91.945103][ T5833] RSP: 002b:00007ffd02ae60a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 91.953513][ T5833] RAX: 0000000000000000 RBX: 0000000000015fa6 RCX: 00007f551876a577 [ 91.961474][ T5833] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd02ae6160 [ 91.969435][ T5833] RBP: 00007ffd02ae6160 R08: 0000000000000000 R09: 0000000000000000 [ 91.977396][ T5833] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd02ae71d0 [ 91.985360][ T5833] R13: 000055557e7e26c0 R14: 431bde82d7b634db R15: 00007ffd02ae71f0 [pid 5857] mkdir("./file0", 0777 [pid 5856] <... ioctl resumed>) = 0 [pid 5858] <... ioctl resumed>) = 0 [pid 5857] <... mkdir resumed>) = 0 [pid 5858] close(3 [pid 5857] mount("/dev/loop1", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5858] <... close resumed>) = 0 [pid 5858] close(4) = 0 [pid 5858] mkdir("./file0", 0777) = 0 [pid 5858] mount("/dev/loop5", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5859] <... write resumed>) = 16777216 [ 91.993331][ T5833] [ 91.996339][ T5833] Modules linked in: [ 92.000395][ T5833] ---[ end trace 0000000000000000 ]--- [ 92.012352][ T5833] RIP: 0010:lmLogSync+0x22e/0x9d0 [ 92.017598][ T5833] Code: e6 b6 fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 70 a3 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 54 a3 e3 fe 49 8b 3f e8 9c e6 b6 fe [ 92.037853][ T5833] RSP: 0018:ffffc90003aefa80 EFLAGS: 00010216 [pid 5859] munmap(0x7f5510200000, 138412032) = 0 [pid 5856] close(3 [pid 5859] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5856] <... close resumed>) = 0 [pid 5859] <... openat resumed>) = 4 [pid 5856] close(4 [pid 5859] ioctl(4, LOOP_SET_FD, 3 [pid 5856] <... close resumed>) = 0 [ 92.044782][ T5833] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff888079ad1e00 [ 92.056042][ T5833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [pid 5856] mkdir("./file0", 0777 [pid 5859] <... ioctl resumed>) = 0 [pid 5856] <... mkdir resumed>) = 0 [pid 5859] close(3 [pid 5856] mount("/dev/loop2", "./file0", "jfs", MS_NOSUID, "quota,nointegrity,noquota,gid=0x000000000000ee00,iocharset=cp866,uid=0x0000000000000000,errors=remou"... [pid 5859] <... close resumed>) = 0 [pid 5859] close(4) = 0 [pid 5859] mkdir("./file0", 0777) = 0 [ 92.102847][ T5859] loop3: detected capacity change from 0 to 32768 [ 92.130731][ T5833] RBP: ffffc90003aefb88 R08: ffffc90003aef9df R09: ffffc90003aef868 [ 92.146381][ T5833] R10: dffffc0000000000 R11: fffff5200075df3c R12: ffff888033c74800 [ 92.155617][ T5833] R13: dffffc0000000000 R14: ffff88814c65ec38 R15: 0000000000000030 [ 92.164595][ T5833] FS: 000055557e7e1380(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000 [ 92.174676][ T5833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.181948][ T5833] CR2: 00007f4876d7e000 CR3: 000000007647a000 CR4: 0000000000350ef0 [ 92.191020][ T5833] Kernel panic - not syncing: Fatal exception [ 92.197295][ T5833] Kernel Offset: disabled [ 92.201629][ T5833] Rebooting in 86400 seconds..