./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1597836583 <...> Warning: Permanently added '10.128.1.69' (ED25519) to the list of known hosts. execve("./syz-executor1597836583", ["./syz-executor1597836583"], 0x7fff22007ae0 /* 10 vars */) = 0 brk(NULL) = 0x555568e2e000 brk(0x555568e2ed00) = 0x555568e2ed00 arch_prctl(ARCH_SET_FS, 0x555568e2e380) = 0 set_tid_address(0x555568e2e650) = 5071 set_robust_list(0x555568e2e660, 24) = 0 rseq(0x555568e2eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1597836583", 4096) = 28 getrandom("\x12\x47\x59\xc1\x3c\x90\xa0\x23", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568e2ed00 brk(0x555568e4fd00) = 0x555568e4fd00 brk(0x555568e50000) = 0x555568e50000 mprotect(0x7f2991e76000, 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 5072 attached [pid 5072] set_robust_list(0x555568e2e660, 24) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555568e2e650) = 5072 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] mkdir("./syzkaller.o9PknM", 0700./strace-static-x86_64: Process 5073 attached [pid 5071] <... clone resumed>, child_tidptr=0x555568e2e650) = 5073 [pid 5073] set_robust_list(0x555568e2e660, 24 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5074 attached [pid 5073] mkdir("./syzkaller.9flql8", 0700 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555568e2e650) = 5074 [pid 5074] set_robust_list(0x555568e2e660, 24 [pid 5072] chmod("./syzkaller.o9PknM", 0777 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... set_robust_list resumed>) = 0 [pid 5074] mkdir("./syzkaller.fo0FT9", 0700 [pid 5072] <... chmod resumed>) = 0 [pid 5072] chdir("./syzkaller.o9PknM" [pid 5073] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5075 attached [pid 5074] <... mkdir resumed>) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555568e2e650) = 5075 [pid 5072] <... chdir resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] mkdir("./0", 0777 [pid 5075] set_robust_list(0x555568e2e660, 24 [pid 5074] chmod("./syzkaller.fo0FT9", 0777 [pid 5073] chmod("./syzkaller.9flql8", 0777 [pid 5074] <... chmod resumed>) = 0 ./strace-static-x86_64: Process 5076 attached [pid 5071] <... clone resumed>, child_tidptr=0x555568e2e650) = 5076 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5074] chdir("./syzkaller.fo0FT9" [pid 5073] <... chmod resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5076] set_robust_list(0x555568e2e660, 24 [pid 5074] <... chdir resumed>) = 0 [pid 5076] <... set_robust_list resumed>) = 0 [pid 5075] mkdir("./syzkaller.KeBxiC", 0700 [pid 5074] mkdir("./0", 0777 [pid 5073] chdir("./syzkaller.9flql8" [pid 5072] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5076] mkdir("./syzkaller.9NZyp5", 0700 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5075] chmod("./syzkaller.KeBxiC", 0777 [pid 5073] <... chdir resumed>) = 0 [pid 5075] <... chmod resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5075] chdir("./syzkaller.KeBxiC" [pid 5076] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] mkdir("./0", 0777 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5076] chmod("./syzkaller.9NZyp5", 0777) = 0 [pid 5075] <... chdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] chdir("./syzkaller.9NZyp5" [pid 5075] mkdir("./0", 0777 [pid 5073] <... mkdir resumed>) = 0 [pid 5076] <... chdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5076] mkdir("./0", 0777 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5073] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5076] <... mkdir resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5072] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] close(3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... close resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3./strace-static-x86_64: Process 5079 attached ) = 0 [pid 5079] set_robust_list(0x555568e2e660, 24 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... clone resumed>, child_tidptr=0x555568e2e650) = 5078 ./strace-static-x86_64: Process 5080 attached [pid 5079] <... set_robust_list resumed>) = 0 [pid 5080] set_robust_list(0x555568e2e660, 24 [pid 5079] chdir("./0" [pid 5080] <... set_robust_list resumed>) = 0 [pid 5079] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5082 attached [pid 5080] chdir("./0" [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] set_robust_list(0x555568e2e660, 24 [pid 5079] <... prctl resumed>) = 0 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5080] <... chdir resumed>) = 0 [pid 5079] setpgid(0, 0 [pid 5076] <... clone resumed>, child_tidptr=0x555568e2e650) = 5080 ./strace-static-x86_64: Process 5081 attached ./strace-static-x86_64: Process 5078 attached [pid 5082] chdir("./0" [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... setpgid resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x555568e2e650) = 5081 [pid 5074] <... clone resumed>, child_tidptr=0x555568e2e650) = 5082 [pid 5072] <... clone resumed>, child_tidptr=0x555568e2e650) = 5079 [pid 5082] <... chdir resumed>) = 0 [pid 5081] set_robust_list(0x555568e2e660, 24 [pid 5080] <... prctl resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] set_robust_list(0x555568e2e660, 24 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] setpgid(0, 0 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5082] <... prctl resumed>) = 0 [pid 5080] <... setpgid resumed>) = 0 [pid 5082] setpgid(0, 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... openat resumed>) = 3 [pid 5082] <... setpgid resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] <... openat resumed>) = 3 [pid 5079] write(3, "1000", 4) = 4 [pid 5082] <... openat resumed>) = 3 [pid 5080] write(3, "1000", 4 [pid 5079] close(3 [pid 5080] <... write resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5082] write(3, "1000", 4 [pid 5080] close(3 [pid 5079] symlink("/dev/binderfs", "./binderfs" [pid 5078] chdir("./0" [pid 5081] chdir("./0" [pid 5078] <... chdir resumed>) = 0 [pid 5082] <... write resumed>) = 4 [pid 5081] <... chdir resumed>) = 0 [pid 5080] <... close resumed>) = 0 [pid 5079] <... symlink resumed>) = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] close(3 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] symlink("/dev/binderfs", "./binderfs" [pid 5081] <... prctl resumed>) = 0 [pid 5078] <... prctl resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5081] setpgid(0, 0 [pid 5080] <... symlink resumed>) = 0 [pid 5078] setpgid(0, 0 [pid 5082] symlink("/dev/binderfs", "./binderfs" [pid 5078] <... setpgid resumed>) = 0 [pid 5082] <... symlink resumed>) = 0 [pid 5081] <... setpgid resumed>) = 0 [pid 5080] memfd_create("syzkaller", 0 [pid 5079] memfd_create("syzkaller", 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] memfd_create("syzkaller", 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... openat resumed>) = 3 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... memfd_create resumed>) = 3 [pid 5079] <... memfd_create resumed>) = 3 [pid 5078] write(3, "1000", 4 [pid 5082] <... memfd_create resumed>) = 3 [pid 5081] write(3, "1000", 4 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... write resumed>) = 4 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5081] <... write resumed>) = 4 [pid 5080] <... mmap resumed>) = 0x7f2989800000 [pid 5079] <... mmap resumed>) = 0x7f2989800000 [pid 5078] close(3 [pid 5082] <... mmap resumed>) = 0x7f2989800000 [pid 5081] close(3 [pid 5078] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5078] symlink("/dev/binderfs", "./binderfs" [pid 5081] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5078] <... symlink resumed>) = 0 [pid 5081] memfd_create("syzkaller", 0) = 3 [pid 5078] memfd_create("syzkaller", 0) = 3 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2989800000 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2989800000 [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 5078] 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 5080] 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 5079] 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 5081] 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 5082] <... write resumed>) = 16777216 [pid 5082] munmap(0x7f2989800000, 138412032 [pid 5078] <... write resumed>) = 16777216 [pid 5078] munmap(0x7f2989800000, 138412032) = 0 [pid 5082] <... munmap resumed>) = 0 [pid 5081] <... write resumed>) = 16777216 [pid 5082] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5081] munmap(0x7f2989800000, 138412032 [pid 5078] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5082] <... openat resumed>) = 4 [pid 5082] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... openat resumed>) = 4 [pid 5078] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... write resumed>) = 16777216 [pid 5082] <... ioctl resumed>) = 0 [pid 5081] <... munmap resumed>) = 0 [pid 5080] <... write resumed>) = 16777216 [pid 5078] <... ioctl resumed>) = 0 [pid 5082] close(3 [pid 5081] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5080] munmap(0x7f2989800000, 138412032 [pid 5079] munmap(0x7f2989800000, 138412032 [pid 5078] close(3 [pid 5082] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 5078] <... close resumed>) = 0 [pid 5078] close(4 [pid 5082] close(4 [pid 5081] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... close resumed>) = 0 [ 59.043256][ T5082] loop2: detected capacity change from 0 to 32768 [ 59.054467][ T5078] loop1: detected capacity change from 0 to 32768 [pid 5078] mkdir("./file0", 0777 [pid 5082] <... close resumed>) = 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5082] mkdir("./file0", 0777) = 0 [pid 5081] close(3 [pid 5080] <... munmap resumed>) = 0 [pid 5078] mount("/dev/loop1", "./file0", "jfs", MS_NOSUID, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5082] mount("/dev/loop2", "./file0", "jfs", MS_NOSUID, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5082] <... mount resumed>) = 0 [pid 5081] close(4 [pid 5082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5081] <... close resumed>) = 0 [pid 5080] ioctl(4, LOOP_SET_FD, 3 [pid 5082] <... openat resumed>) = 3 [pid 5082] chdir("./file0") = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5082] exit_group(0) = ? [pid 5082] +++ exited with 0 +++ [pid 5079] <... munmap resumed>) = 0 [ 59.086112][ T5081] loop3: detected capacity change from 0 to 32768 [ 59.117066][ T5080] loop4: detected capacity change from 0 to 32768 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5081] mkdir("./file0", 0777 [pid 5079] <... openat resumed>) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=24 /* 0.24 s */} --- [pid 5081] <... mkdir resumed>) = 0 [pid 5081] mount("/dev/loop3", "./file0", "jfs", MS_NOSUID, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5080] <... ioctl resumed>) = 0 [pid 5080] close(3) = 0 [pid 5080] close(4) = 0 [pid 5080] mkdir("./file0", 0777 [pid 5074] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5080] <... mkdir resumed>) = 0 [pid 5079] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... mount resumed>) = 0 [pid 5074] newfstatat(3, "", [pid 5080] mount("/dev/loop4", "./file0", "jfs", MS_NOSUID, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5078] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5078] chdir("./file0") = 0 [pid 5074] getdents64(3, [pid 5078] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5074] <... getdents64 resumed>0x555568e2f6f0 /* 4 entries */, 32768) = 112 [pid 5078] exit_group(0 [pid 5074] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5078] <... exit_group resumed>) = ? [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5074] unlink("./0/binderfs" [pid 5081] <... mount resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5081] chdir("./file0") = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5081] exit_group(0) = ? [pid 5074] <... unlink resumed>) = 0 [pid 5080] <... mount resumed>) = 0 [pid 5078] +++ exited with 0 +++ [pid 5074] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=20 /* 0.20 s */} --- [pid 5079] <... ioctl resumed>) = 0 [pid 5081] +++ exited with 0 +++ [pid 5080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] close(3 [pid 5073] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] <... openat resumed>) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 59.145663][ T5079] loop0: detected capacity change from 0 to 32768 [pid 5073] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] chdir("./file0" [pid 5073] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5079] close(4 [pid 5073] newfstatat(3, "", [pid 5080] <... chdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5080] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5079] mkdir("./file0", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] exit_group(0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] getdents64(3, [pid 5080] <... exit_group resumed>) = ? [pid 5079] mount("/dev/loop0", "./file0", "jfs", MS_NOSUID, "quota,errors=remount-ro,integrity,iocharset=cp932,nodiscard,nointegrity,grpquota" [pid 5080] +++ exited with 0 +++ [pid 5075] <... openat resumed>) = 3 [pid 5074] <... umount2 resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555568e2f6f0 /* 4 entries */, 32768) = 112 [pid 5075] newfstatat(3, "", [pid 5074] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5073] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5075] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] newfstatat(AT_FDCWD, "./0/file0", [pid 5075] getdents64(3, [pid 5074] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5073] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=24 /* 0.24 s */} --- [pid 5074] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5073] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555568e2f6f0 /* 4 entries */, 32768) = 112 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] unlink("./0/binderfs" [pid 5074] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5073] <... unlink resumed>) = 0 [pid 5076] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... openat resumed>) = 4 [pid 5073] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] <... mount resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5074] newfstatat(4, "", [pid 5079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5074] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5076] newfstatat(3, "", [pid 5075] unlink("./0/binderfs" [pid 5079] chdir("./file0" [pid 5076] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5074] getdents64(4, [pid 5079] <... chdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555568e37730 /* 2 entries */, 32768) = 48 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5076] getdents64(3, [pid 5075] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5074] getdents64(4, 0x555568e37730 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5076] <... getdents64 resumed>0x555568e2f6f0 /* 4 entries */, 32768) = 112 [pid 5074] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5076] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5074] rmdir("./0/file0" [pid 5079] exit_group(0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... rmdir resumed>) = 0 [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 [pid 5079] <... exit_group resumed>) = ? [pid 5076] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5079] +++ exited with 0 +++ [pid 5074] getdents64(3, 0x555568e2f6f0 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=27 /* 0.27 s */} --- [ 59.258470][ T5075] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI [ 59.270574][ T5075] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 59.278992][ T5075] CPU: 1 PID: 5075 Comm: syz-executor159 Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0 [ 59.289399][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 59.299438][ T5075] RIP: 0010:lmLogSync+0x228/0xae0 [ 59.304471][ T5075] Code: a5 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a6 21 d2 fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 89 21 d2 fe 48 8b 3b e8 21 f5 a5 [ 59.324065][ T5075] RSP: 0018:ffffc900020bfa40 EFLAGS: 00010206 [ 59.330118][ T5075] RAX: 0000000000000006 RBX: 0000000000000030 RCX: 5c0a7b8ecba4eb00 [ 59.338075][ T5075] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 59.346028][ T5075] RBP: ffffc900020bfb60 R08: ffffffff81cb391a R09: 0000000000000000 [ 59.353985][ T5075] R10: ffffc900020bf828 R11: fffff52000417f33 R12: ffff888023eca000 [ 59.361940][ T5075] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888020be6c38 [ 59.369899][ T5075] FS: 0000555568e2e380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 59.378824][ T5075] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.385396][ T5075] CR2: 0000555568e3f738 CR3: 000000001f5f2000 CR4: 00000000003506f0 [ 59.393354][ T5075] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.401317][ T5075] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.409279][ T5075] Call Trace: [ 59.412547][ T5075] [ 59.415473][ T5075] ? __die_body+0x88/0xe0 [ 59.419796][ T5075] ? die_addr+0x108/0x140 [ 59.424111][ T5075] ? exc_general_protection+0x3dd/0x5d0 [ 59.429675][ T5075] ? asm_exc_general_protection+0x26/0x30 [ 59.435385][ T5075] ? filemap_fdatawrite_wbc+0xaa/0x180 [ 59.440833][ T5075] ? lmLogSync+0x228/0xae0 [ 59.445251][ T5075] ? _raw_spin_unlock_irq+0x2e/0x50 [ 59.450441][ T5075] ? jfs_flush_journal+0x780/0xec0 [ 59.455541][ T5075] ? jfs_syncpt+0x26/0xa0 [ 59.459859][ T5075] ? __pfx_lmLogSync+0x10/0x10 [ 59.464613][ T5075] ? __pfx_jfs_flush_journal+0x10/0x10 [ 59.470066][ T5075] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 59.475973][ T5075] jfs_syncpt+0x7d/0xa0 [ 59.480120][ T5075] jfs_sync_fs+0x8a/0xa0 [ 59.484356][ T5075] sync_filesystem+0xed/0x230 [ 59.489020][ T5075] generic_shutdown_super+0x72/0x2d0 [ 59.494291][ T5075] kill_block_super+0x44/0x90 [ 59.498964][ T5075] deactivate_locked_super+0xc4/0x130 [ 59.504337][ T5075] cleanup_mnt+0x426/0x4c0 [ 59.508745][ T5075] ? _raw_spin_unlock_irq+0x23/0x50 [ 59.513935][ T5075] task_work_run+0x24f/0x310 [ 59.518515][ T5075] ? __pfx_task_work_run+0x10/0x10 [ 59.523612][ T5075] ? path_umount+0x284/0xf80 [ 59.528192][ T5075] ptrace_notify+0x2d2/0x380 [ 59.532773][ T5075] ? __pfx_path_umount+0x10/0x10 [ 59.537694][ T5075] ? user_path_at_empty+0x4c/0x60 [ 59.542701][ T5075] ? __pfx_ptrace_notify+0x10/0x10 [ 59.547820][ T5075] ? __x64_sys_umount+0x126/0x170 [ 59.552831][ T5075] ? __pfx___x64_sys_umount+0x10/0x10 [ 59.558193][ T5075] syscall_exit_work+0xc6/0x190 [ 59.563030][ T5075] syscall_exit_to_user_mode+0x273/0x370 [ 59.568655][ T5075] do_syscall_64+0x102/0x240 [ 59.573233][ T5075] ? clear_bhb_loop+0x35/0x90 [ 59.577902][ T5075] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.583780][ T5075] RIP: 0033:0x7f2991dfd437 [ 59.588179][ T5075] 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 [ 59.607782][ T5075] RSP: 002b:00007ffed755a808 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 59.616227][ T5075] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2991dfd437 [ 59.624185][ T5075] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffed755a8c0 [ 59.632142][ T5075] RBP: 00007ffed755a8c0 R08: 0000000000000000 R09: 0000000000000000 [ 59.640110][ T5075] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffed755b920 [ 59.648070][ T5075] R13: 0000555568e2f6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 59.656034][ T5075] [pid 5074] rmdir("./0") = 0 [pid 5074] mkdir("./1", 0777 [pid 5072] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5072] <... openat resumed>) = 3 [pid 5072] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5072] getdents64(3, 0x555568e2f6f0 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 59.659037][ T5075] Modules linked in: [ 59.664146][ T5075] ---[ end trace 0000000000000000 ]--- [ 59.669624][ T5075] RIP: 0010:lmLogSync+0x228/0xae0 [ 59.675417][ T5075] Code: a5 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a6 21 d2 fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 89 21 d2 fe 48 8b 3b e8 21 f5 a5 [ 59.695193][ T5075] RSP: 0018:ffffc900020bfa40 EFLAGS: 00010206 [ 59.701273][ T5075] RAX: 0000000000000006 RBX: 0000000000000030 RCX: 5c0a7b8ecba4eb00 [pid 5072] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5072] unlink("./0/binderfs") = 0 [ 59.709388][ T5075] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 59.717397][ T5075] RBP: ffffc900020bfb60 R08: ffffffff81cb391a R09: 0000000000000000 [ 59.725403][ T5075] R10: ffffc900020bf828 R11: fffff52000417f33 R12: ffff888023eca000 [ 59.733375][ T5075] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888020be6c38 [ 59.741382][ T5075] FS: 0000555568e2e380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 59.750370][ T5075] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.756992][ T5075] CR2: 0000555568e3f738 CR3: 000000001f5f2000 CR4: 00000000003506f0 [ 59.765044][ T5075] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.773031][ T5075] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.781047][ T5075] Kernel panic - not syncing: Fatal exception [ 59.787342][ T5075] Kernel Offset: disabled [ 59.791648][ T5075] Rebooting in 86400 seconds..