./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor97898361 <...> Warning: Permanently added '10.128.1.116' (ED25519) to the list of known hosts. execve("./syz-executor97898361", ["./syz-executor97898361"], 0x7ffe1a28ebd0 /* 10 vars */) = 0 brk(NULL) = 0x55555f66d000 brk(0x55555f66dd00) = 0x55555f66dd00 arch_prctl(ARCH_SET_FS, 0x55555f66d380) = 0 set_tid_address(0x55555f66d650) = 5074 set_robust_list(0x55555f66d660, 24) = 0 rseq(0x55555f66dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor97898361", 4096) = 26 getrandom("\x8b\xa0\x55\xb2\xab\x93\x8d\x0d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555f66dd00 brk(0x55555f68ed00) = 0x55555f68ed00 brk(0x55555f68f000) = 0x55555f68f000 mprotect(0x7fb114e09000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5076 attached , child_tidptr=0x55555f66d650) = 5076 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] set_robust_list(0x55555f66d660, 24) = 0 ./strace-static-x86_64: Process 5077 attached [pid 5074] <... clone resumed>, child_tidptr=0x55555f66d650) = 5077 [pid 5076] getrandom( [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] set_robust_list(0x55555f66d660, 24 [pid 5076] <... getrandom resumed>"\x75\x87\x36\xc3\x91\x32\x9d\xa3", 8, GRND_NONBLOCK) = 8 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5077] mkdir("./syzkaller.YpTYjt", 0700 [pid 5076] mkdir("./syzkaller.dJ4FVL", 0700./strace-static-x86_64: Process 5078 attached [pid 5074] <... clone resumed>, child_tidptr=0x55555f66d650) = 5078 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] set_robust_list(0x55555f66d660, 24) = 0 [pid 5078] mkdir("./syzkaller.mvKpNl", 0700 [pid 5076] <... mkdir resumed>) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x55555f66d650) = 5079 ./strace-static-x86_64: Process 5079 attached [pid 5078] <... mkdir resumed>) = 0 [pid 5079] set_robust_list(0x55555f66d660, 24) = 0 [pid 5079] mkdir("./syzkaller.oQih1T", 0700 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] chmod("./syzkaller.mvKpNl", 0777 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] chmod("./syzkaller.dJ4FVL", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5078] <... chmod resumed>) = 0 [pid 5077] chmod("./syzkaller.YpTYjt", 0777 [pid 5076] <... chmod resumed>) = 0 [pid 5076] chdir("./syzkaller.dJ4FVL"./strace-static-x86_64: Process 5080 attached [pid 5074] <... clone resumed>, child_tidptr=0x55555f66d650) = 5080 [pid 5079] chmod("./syzkaller.oQih1T", 0777 [pid 5078] chdir("./syzkaller.mvKpNl" [pid 5076] <... chdir resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] set_robust_list(0x55555f66d660, 24 [pid 5076] mkdir("./0", 0777 [pid 5077] <... chmod resumed>) = 0 [pid 5079] <... chmod resumed>) = 0 [pid 5078] <... chdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5081 attached [pid 5080] <... set_robust_list resumed>) = 0 [pid 5079] chdir("./syzkaller.oQih1T" [pid 5078] mkdir("./0", 0777 [pid 5077] chdir("./syzkaller.YpTYjt" [pid 5074] <... clone resumed>, child_tidptr=0x55555f66d650) = 5081 [pid 5080] mkdir("./syzkaller.VqmIvH", 0700 [pid 5077] <... chdir resumed>) = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5081] set_robust_list(0x55555f66d660, 24 [pid 5078] <... mkdir resumed>) = 0 [pid 5081] <... set_robust_list resumed>) = 0 [pid 5079] <... chdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] mkdir("./0", 0777 [pid 5076] close(3 [pid 5080] <... mkdir resumed>) = 0 [pid 5080] chmod("./syzkaller.VqmIvH", 0777) = 0 [pid 5079] mkdir("./0", 0777 [pid 5080] chdir("./syzkaller.VqmIvH" [pid 5081] mkdir("./syzkaller.pt7wSJ", 0700 [pid 5079] <... mkdir resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5080] <... chdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5077] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5082 attached [pid 5081] chmod("./syzkaller.pt7wSJ", 0777 [pid 5080] mkdir("./0", 0777 [pid 5079] <... openat resumed>) = 3 [pid 5078] close(3 [pid 5077] <... openat resumed>) = 3 [pid 5082] set_robust_list(0x55555f66d660, 24 [pid 5081] <... chmod resumed>) = 0 [pid 5080] <... mkdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5081] chdir("./syzkaller.pt7wSJ" [pid 5076] <... clone resumed>, child_tidptr=0x55555f66d650) = 5082 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5081] <... chdir resumed>) = 0 [pid 5082] chdir("./0" [pid 5081] mkdir("./0", 0777 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] <... chdir resumed>) = 0 [pid 5081] <... mkdir resumed>) = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5082] <... prctl resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5082] setpgid(0, 0) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] close(3 [pid 5077] close(3 [pid 5082] <... openat resumed>) = 3 [pid 5080] ioctl(3, LOOP_CLR_FD [pid 5077] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] ioctl(3, LOOP_CLR_FD [pid 5078] <... clone resumed>, child_tidptr=0x55555f66d650) = 5083 [pid 5081] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5080] close(3 [pid 5082] write(3, "1000", 4 [pid 5080] <... close resumed>) = 0 [pid 5082] <... write resumed>) = 4 [pid 5081] close(3 [pid 5080] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] close(3 [pid 5081] <... close resumed>) = 0 ./strace-static-x86_64: Process 5083 attached [pid 5083] set_robust_list(0x55555f66d660, 24 [pid 5082] <... close resumed>) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached [pid 5083] <... set_robust_list resumed>) = 0 [pid 5082] symlink("/dev/binderfs", "./binderfs" [pid 5085] set_robust_list(0x55555f66d660, 24 [pid 5083] chdir("./0" [pid 5082] <... symlink resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x55555f66d650) = 5085 [pid 5077] <... clone resumed>, child_tidptr=0x55555f66d650) = 5084 [pid 5085] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x55555f66d660, 24) = 0 [pid 5084] chdir("./0" [pid 5082] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5086 attached [pid 5085] chdir("./0" [pid 5083] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5087 attached [pid 5086] set_robust_list(0x55555f66d660, 24 [pid 5084] <... chdir resumed>) = 0 [pid 5085] <... chdir resumed>) = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... clone resumed>, child_tidptr=0x55555f66d650) = 5086 [pid 5087] set_robust_list(0x55555f66d660, 24 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] <... prctl resumed>) = 0 [pid 5082] <... memfd_create resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x55555f66d650) = 5087 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5086] chdir("./0" [pid 5084] <... prctl resumed>) = 0 [pid 5085] <... prctl resumed>) = 0 [pid 5083] setpgid(0, 0 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] setpgid(0, 0 [pid 5085] setpgid(0, 0 [pid 5083] <... setpgid resumed>) = 0 [pid 5082] <... mmap resumed>) = 0x7fb10c800000 [pid 5087] chdir("./0") = 0 [pid 5086] <... chdir resumed>) = 0 [pid 5084] <... setpgid resumed>) = 0 [pid 5085] <... setpgid resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... openat resumed>) = 3 [pid 5087] setpgid(0, 0 [pid 5086] <... prctl resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] write(3, "1000", 4 [pid 5087] <... setpgid resumed>) = 0 [pid 5083] <... write resumed>) = 4 [pid 5086] setpgid(0, 0 [pid 5083] close(3 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] <... setpgid resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] <... openat resumed>) = 3 [pid 5083] <... close resumed>) = 0 [pid 5083] symlink("/dev/binderfs", "./binderfs" [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] symlink("/dev/binderfs", "./binderfs" [pid 5087] <... openat resumed>) = 3 [pid 5084] <... symlink resumed>) = 0 [pid 5085] write(3, "1000", 4 [pid 5086] <... openat resumed>) = 3 [pid 5087] write(3, "1000", 4 [pid 5086] write(3, "1000", 4 [pid 5085] <... write resumed>) = 4 [pid 5087] <... write resumed>) = 4 [pid 5086] <... write resumed>) = 4 [pid 5084] memfd_create("syzkaller", 0 [pid 5085] close(3 [pid 5083] <... symlink resumed>) = 0 [pid 5087] close(3 [pid 5086] close(3 [pid 5085] <... close resumed>) = 0 [pid 5086] <... close resumed>) = 0 [pid 5085] symlink("/dev/binderfs", "./binderfs" [pid 5087] <... close resumed>) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs" [pid 5084] <... memfd_create resumed>) = 3 [pid 5085] <... symlink resumed>) = 0 [pid 5083] memfd_create("syzkaller", 0 [pid 5087] symlink("/dev/binderfs", "./binderfs" [pid 5086] <... symlink resumed>) = 0 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... memfd_create resumed>) = 3 [pid 5087] <... symlink resumed>) = 0 [pid 5086] memfd_create("syzkaller", 0 [pid 5084] <... mmap resumed>) = 0x7fb10c800000 [pid 5085] memfd_create("syzkaller", 0 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5086] <... memfd_create resumed>) = 3 [pid 5085] <... memfd_create resumed>) = 3 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5083] <... mmap resumed>) = 0x7fb10c800000 [pid 5085] <... mmap resumed>) = 0x7fb10c800000 [pid 5086] <... mmap resumed>) = 0x7fb10c800000 [pid 5087] memfd_create("syzkaller", 0) = 3 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb10c800000 [pid 5082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5086] <... write resumed>) = 16777216 [pid 5086] munmap(0x7fb10c800000, 138412032 [pid 5085] <... write resumed>) = 16777216 [pid 5083] <... write resumed>) = 16777216 [pid 5085] munmap(0x7fb10c800000, 138412032 [pid 5083] munmap(0x7fb10c800000, 138412032 [pid 5082] <... write resumed>) = 16777216 [pid 5082] munmap(0x7fb10c800000, 138412032 [pid 5086] <... munmap resumed>) = 0 [pid 5085] <... munmap resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5085] ioctl(4, LOOP_SET_FD, 3 [pid 5086] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5084] <... write resumed>) = 16777216 [pid 5085] <... ioctl resumed>) = 0 [pid 5084] munmap(0x7fb10c800000, 138412032 [pid 5085] close(3) = 0 [pid 5085] close(4) = 0 [pid 5083] <... munmap resumed>) = 0 [pid 5085] mkdir("./file0", 0777 [pid 5086] <... openat resumed>) = 4 [pid 5085] <... mkdir resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5083] ioctl(4, LOOP_SET_FD, 3 [pid 5086] ioctl(4, LOOP_SET_FD, 3 [ 110.032830][ T5085] loop3: detected capacity change from 0 to 32768 [ 110.067538][ T5083] loop2: detected capacity change from 0 to 32768 [pid 5085] mount("/dev/loop3", "./file0", "jfs", MS_NOATIME|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME|MS_LAZYTIME, "integrity,discard=0x0000000000000000,noquota,nointegrity,iocharset=cp860,errors=remount-ro,iocharset"... [pid 5083] <... ioctl resumed>) = 0 [pid 5083] close(3) = 0 [pid 5083] close(4) = 0 [pid 5083] mkdir("./file0", 0777) = 0 [pid 5082] <... munmap resumed>) = 0 [pid 5083] mount("/dev/loop2", "./file0", "jfs", MS_NOATIME|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME|MS_LAZYTIME, "integrity,discard=0x0000000000000000,noquota,nointegrity,iocharset=cp860,errors=remount-ro,iocharset"... [pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5086] <... ioctl resumed>) = 0 [pid 5086] close(3 [pid 5082] <... openat resumed>) = 4 [pid 5086] <... close resumed>) = 0 [ 110.079344][ T5086] loop4: detected capacity change from 0 to 32768 [pid 5086] close(4) = 0 [pid 5082] ioctl(4, LOOP_SET_FD, 3 [pid 5086] mkdir("./file0", 0777 [pid 5084] <... munmap resumed>) = 0 [pid 5086] <... mkdir resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5084] ioctl(4, LOOP_SET_FD, 3 [pid 5086] mount("/dev/loop4", "./file0", "jfs", MS_NOATIME|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME|MS_LAZYTIME, "integrity,discard=0x0000000000000000,noquota,nointegrity,iocharset=cp860,errors=remount-ro,iocharset"... [pid 5087] <... write resumed>) = 16777216 [pid 5084] <... ioctl resumed>) = 0 [pid 5085] <... mount resumed>) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5083] <... mount resumed>) = 0 [pid 5084] close(3 [pid 5085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5083] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5084] <... close resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5083] <... openat resumed>) = 3 [pid 5087] munmap(0x7fb10c800000, 138412032 [pid 5084] close(4 [pid 5085] chdir("./file0" [pid 5083] chdir("./file0" [pid 5084] <... close resumed>) = 0 [pid 5085] <... chdir resumed>) = 0 [pid 5083] <... chdir resumed>) = 0 [pid 5084] mkdir("./file0", 0777 [pid 5085] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 110.116602][ T5082] loop0: detected capacity change from 0 to 32768 [ 110.129984][ T5084] loop1: detected capacity change from 0 to 32768 [pid 5083] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5084] <... mkdir resumed>) = 0 [pid 5085] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5083] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5084] mount("/dev/loop1", "./file0", "jfs", MS_NOATIME|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME|MS_LAZYTIME, "integrity,discard=0x0000000000000000,noquota,nointegrity,iocharset=cp860,errors=remount-ro,iocharset"... [pid 5085] exit_group(0 [pid 5083] exit_group(0 [pid 5085] <... exit_group resumed>) = ? [pid 5083] <... exit_group resumed>) = ? [pid 5085] +++ exited with 0 +++ [pid 5083] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=41 /* 0.41 s */} --- [pid 5079] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=45 /* 0.45 s */} --- [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5082] close(3 [pid 5079] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5082] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5078] newfstatat(3, "", [pid 5082] close(4) = 0 [pid 5079] <... getdents64 resumed>0x55555f66e6f0 /* 4 entries */, 32768) = 112 [pid 5078] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5082] mkdir("./file0", 0777 [pid 5079] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] getdents64(3, [pid 5086] <... mount resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5086] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] mount("/dev/loop0", "./file0", "jfs", MS_NOATIME|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME|MS_LAZYTIME, "integrity,discard=0x0000000000000000,noquota,nointegrity,iocharset=cp860,errors=remount-ro,iocharset"... [pid 5079] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5078] <... getdents64 resumed>0x55555f66e6f0 /* 4 entries */, 32768) = 112 [pid 5086] <... openat resumed>) = 3 [pid 5079] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5078] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5086] chdir("./file0" [pid 5079] unlink("./0/binderfs" [pid 5086] <... chdir resumed>) = 0 [pid 5084] <... mount resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5086] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5079] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5086] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5084] chdir("./file0" [pid 5078] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5086] exit_group(0 [pid 5084] <... chdir resumed>) = 0 [pid 5086] <... exit_group resumed>) = ? [pid 5084] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5086] +++ exited with 0 +++ [pid 5080] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=37 /* 0.37 s */} --- [pid 5080] restart_syscall(<... resuming interrupted clone ...> [pid 5084] exit_group(0) = ? [pid 5080] <... restart_syscall resumed>) = 0 [pid 5082] <... mount resumed>) = 0 [pid 5078] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5080] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5084] +++ exited with 0 +++ [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] unlink("./0/binderfs" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=48 /* 0.48 s */} --- [pid 5082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5080] <... openat resumed>) = 3 [pid 5082] <... openat resumed>) = 3 [pid 5080] newfstatat(3, "", [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5082] chdir("./file0" [pid 5080] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5082] <... chdir resumed>) = 0 [pid 5080] getdents64(3, [pid 5078] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5087] <... munmap resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... getdents64 resumed>0x55555f66e6f0 /* 4 entries */, 32768) = 112 [pid 5087] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5082] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5080] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5087] <... openat resumed>) = 4 [pid 5082] exit_group(0 [pid 5080] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5087] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... exit_group resumed>) = ? [pid 5080] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5077] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] +++ exited with 0 +++ [pid 5080] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5080] unlink("./0/binderfs" [pid 5077] newfstatat(3, "", [pid 5080] <... unlink resumed>) = 0 [pid 5077] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, 0x55555f66e6f0 /* 4 entries */, 32768) = 112 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=47 /* 0.47 s */} --- [pid 5077] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 110.259096][ T5087] loop5: detected capacity change from 0 to 32768 [ 110.271646][ T5080] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 110.283943][ T5080] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 110.292373][ T5080] CPU: 1 PID: 5080 Comm: syz-executor978 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 110.302497][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 110.312671][ T5080] RIP: 0010:write_special_inodes+0xa9/0x170 [ 110.318638][ T5080] Code: 2e e8 6b 04 ce 07 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 b1 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 8e 00 00 00 49 8b 7d 30 2e e8 33 04 ce 07 48 8d [ 110.338291][ T5080] RSP: 0018:ffffc90004357bb8 EFLAGS: 00010216 [ 110.344406][ T5080] RAX: 0000000000000006 RBX: ffff8880200c7000 RCX: ffffffff81bf2e0e [ 110.352406][ T5080] RDX: 0000000000000000 RSI: ffffffff81bf2dc1 RDI: 0000000000000030 [ 110.360406][ T5080] RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 [ 110.368414][ T5080] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff81bfefc0 [ 110.376420][ T5080] R13: 0000000000000000 R14: ffff88807c4b8800 R15: ffff88802d427380 [ 110.384429][ T5080] FS: 000055555f66d380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 110.393574][ T5080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.400196][ T5080] CR2: 000055555f6766f8 CR3: 000000002202c000 CR4: 0000000000350ef0 [ 110.408203][ T5080] Call Trace: [ 110.411506][ T5080] [ 110.414462][ T5080] ? show_regs+0x8c/0xa0 [ 110.418752][ T5080] ? die_addr+0x4f/0xd0 [ 110.422949][ T5080] ? exc_general_protection+0x155/0x230 [ 110.428556][ T5080] ? asm_exc_general_protection+0x26/0x30 [ 110.434326][ T5080] ? __pfx_filemap_flush+0x10/0x10 [ 110.439477][ T5080] ? filemap_fdatawrite_wbc+0xce/0x1c0 [ 110.444988][ T5080] ? filemap_fdatawrite_wbc+0x81/0x1c0 [ 110.450501][ T5080] ? write_special_inodes+0xa9/0x170 [ 110.455821][ T5080] ? write_special_inodes+0x85/0x170 [ 110.461141][ T5080] lmLogSync+0x4a0/0x820 [ 110.465426][ T5080] ? __pfx_lmLogSync+0x10/0x10 [ 110.470232][ T5080] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 110.476186][ T5080] jfs_syncpt+0x89/0xa0 [ 110.480378][ T5080] jfs_sync_fs+0x83/0xb0 [ 110.484677][ T5080] ? __pfx_jfs_sync_fs+0x10/0x10 [ 110.489661][ T5080] sync_filesystem+0x110/0x290 [ 110.494466][ T5080] generic_shutdown_super+0x7e/0x3d0 [ 110.499816][ T5080] kill_block_super+0x3b/0x90 [ 110.504531][ T5080] deactivate_locked_super+0xc1/0x1a0 [ 110.509961][ T5080] deactivate_super+0xde/0x100 [ 110.514773][ T5080] cleanup_mnt+0x222/0x450 [ 110.519224][ T5080] task_work_run+0x151/0x250 [ 110.523855][ T5080] ? __pfx_task_work_run+0x10/0x10 [ 110.529009][ T5080] ptrace_notify+0x10e/0x130 [ 110.533678][ T5080] syscall_exit_to_user_mode_prepare+0x126/0x240 [ 110.540055][ T5080] syscall_exit_to_user_mode+0x11/0x2a0 [ 110.545655][ T5080] do_syscall_64+0xe2/0x260 [ 110.550211][ T5080] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 110.556157][ T5080] RIP: 0033:0x7fb114d90437 [ 110.560596][ T5080] 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 [ 110.580235][ T5080] RSP: 002b:00007fff79d7fae8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 110.588682][ T5080] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb114d90437 [ 110.596680][ T5080] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff79d7fba0 [pid 5076] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5087] <... ioctl resumed>) = 0 [pid 5077] unlink("./0/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5087] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 110.604673][ T5080] RBP: 00007fff79d7fba0 R08: 0000000000000000 R09: 0000000000000000 [ 110.612667][ T5080] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff79d80c00 [ 110.620661][ T5080] R13: 000055555f66e6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 110.628690][ T5080] [ 110.631724][ T5080] Modules linked in: [pid 5087] <... close resumed>) = 0 [pid 5077] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] newfstatat(3, "", [pid 5087] close(4 [pid 5076] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5076] getdents64(3, 0x55555f66e6f0 /* 4 entries */, 32768) = 112 [ 110.663689][ T5080] ---[ end trace 0000000000000000 ]--- [ 110.669204][ T5080] RIP: 0010:write_special_inodes+0xa9/0x170 [ 110.676409][ T5080] Code: 2e e8 6b 04 ce 07 48 8d 7b 28 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 b1 00 00 00 4c 8b 6b 28 49 8d 7d 30 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 8e 00 00 00 49 8b 7d 30 2e e8 33 04 ce 07 48 8d [ 110.699524][ T5080] RSP: 0018:ffffc90004357bb8 EFLAGS: 00010216 [pid 5076] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5087] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5087] mkdir("./file0", 0777) = 0 [pid 5087] mount("/dev/loop5", "./file0", "jfs", MS_NOATIME|MS_NODIRATIME|MS_POSIXACL|MS_STRICTATIME|MS_LAZYTIME, "integrity,discard=0x0000000000000000,noquota,nointegrity,iocharset=cp860,errors=remount-ro,iocharset"... [pid 5076] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5076] unlink("./0/binderfs") = 0 [ 110.713437][ T5080] RAX: 0000000000000006 RBX: ffff8880200c7000 RCX: ffffffff81bf2e0e [ 110.721475][ T5080] RDX: 0000000000000000 RSI: ffffffff81bf2dc1 RDI: 0000000000000030 [ 110.729843][ T5080] RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 [ 110.739515][ T5080] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff81bfefc0 [ 110.748300][ T5080] R13: 0000000000000000 R14: ffff88807c4b8800 R15: ffff88802d427380 [ 110.756592][ T5080] FS: 000055555f66d380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 110.766191][ T5080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.772848][ T5080] CR2: 000055555f6766f8 CR3: 000000002202c000 CR4: 0000000000350ef0 [ 110.780874][ T5080] Kernel panic - not syncing: Fatal exception [ 110.787164][ T5080] Kernel Offset: disabled [ 110.791490][ T5080] Rebooting in 86400 seconds..