./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2161809318 <...> Warning: Permanently added '10.128.0.164' (ED25519) to the list of known hosts. execve("./syz-executor2161809318", ["./syz-executor2161809318"], 0x7ffc1bef9fb0 /* 10 vars */) = 0 brk(NULL) = 0x55556e26e000 brk(0x55556e26ed00) = 0x55556e26ed00 arch_prctl(ARCH_SET_FS, 0x55556e26e380) = 0 set_tid_address(0x55556e26e650) = 5838 set_robust_list(0x55556e26e660, 24) = 0 rseq(0x55556e26eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2161809318", 4096) = 28 getrandom("\x48\x8e\xcd\xe5\x5e\x7d\x90\xd2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556e26ed00 brk(0x55556e28fd00) = 0x55556e28fd00 brk(0x55556e290000) = 0x55556e290000 mprotect(0x7f4ecc6a9000, 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, child_tidptr=0x55556e26e650) = 5839 ./strace-static-x86_64: Process 5839 attached [pid 5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] set_robust_list(0x55556e26e660, 24) = 0 ./strace-static-x86_64: Process 5840 attached [pid 5838] <... clone resumed>, child_tidptr=0x55556e26e650) = 5840 [pid 5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5840] set_robust_list(0x55556e26e660, 24 [pid 5839] mkdir("./syzkaller.bl8Lgl", 0700./strace-static-x86_64: Process 5841 attached [pid 5840] <... set_robust_list resumed>) = 0 [pid 5840] mkdir("./syzkaller.H2B10s", 0700 [pid 5838] <... clone resumed>, child_tidptr=0x55556e26e650) = 5841 [pid 5841] set_robust_list(0x55556e26e660, 24 [pid 5840] <... mkdir resumed>) = 0 [pid 5839] <... mkdir resumed>) = 0 [pid 5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5841] <... set_robust_list resumed>) = 0 [pid 5841] mkdir("./syzkaller.mCzLzx", 0700 [pid 5840] chmod("./syzkaller.H2B10s", 0777 [pid 5839] chmod("./syzkaller.bl8Lgl", 0777) = 0 [pid 5841] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5842 attached [pid 5840] <... chmod resumed>) = 0 [pid 5839] chdir("./syzkaller.bl8Lgl" [pid 5842] set_robust_list(0x55556e26e660, 24 [pid 5841] chmod("./syzkaller.mCzLzx", 0777 [pid 5840] chdir("./syzkaller.H2B10s" [pid 5839] <... chdir resumed>) = 0 [pid 5838] <... clone resumed>, child_tidptr=0x55556e26e650) = 5842 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5841] <... chmod resumed>) = 0 [pid 5840] <... chdir resumed>) = 0 [pid 5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] mkdir("./0", 0777./strace-static-x86_64: Process 5843 attached [pid 5842] mkdir("./syzkaller.U0FDP5", 0700 [pid 5841] chdir("./syzkaller.mCzLzx" [pid 5840] mkdir("./0", 0777 [pid 5838] <... clone resumed>, child_tidptr=0x55556e26e650) = 5843 [pid 5843] set_robust_list(0x55556e26e660, 24 [pid 5841] <... chdir resumed>) = 0 [pid 5839] <... mkdir resumed>) = 0 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5842] <... mkdir resumed>) = 0 [pid 5841] mkdir("./0", 0777 [pid 5840] <... mkdir resumed>) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5843] mkdir("./syzkaller.k6EgX0", 0700 [pid 5842] chmod("./syzkaller.U0FDP5", 0777 [pid 5840] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5843] <... mkdir resumed>) = 0 [pid 5839] <... openat resumed>) = 3 [pid 5842] <... chmod resumed>) = 0 [pid 5840] <... openat resumed>) = 3 [pid 5842] chdir("./syzkaller.U0FDP5") = 0 [pid 5843] chmod("./syzkaller.k6EgX0", 0777 [pid 5842] mkdir("./0", 0777 [pid 5843] <... chmod resumed>) = 0 [pid 5843] chdir("./syzkaller.k6EgX0" [pid 5842] <... mkdir resumed>) = 0 [pid 5843] <... chdir resumed>) = 0 [pid 5841] <... mkdir resumed>) = 0 [pid 5840] ioctl(3, LOOP_CLR_FD [pid 5839] ioctl(3, LOOP_CLR_FD [pid 5843] mkdir("./0", 0777 [pid 5842] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5841] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5840] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5839] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5843] <... mkdir resumed>) = 0 [pid 5839] close(3 [pid 5842] <... openat resumed>) = 3 [pid 5841] <... openat resumed>) = 3 [pid 5843] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5840] close(3 [pid 5839] <... close resumed>) = 0 [pid 5840] <... close resumed>) = 0 [pid 5843] <... openat resumed>) = 3 [pid 5842] ioctl(3, LOOP_CLR_FD [pid 5841] ioctl(3, LOOP_CLR_FD [pid 5840] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached ./strace-static-x86_64: Process 5844 attached [pid 5843] ioctl(3, LOOP_CLR_FD [pid 5842] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5841] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5840] <... clone resumed>, child_tidptr=0x55556e26e650) = 5844 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5842] close(3 [pid 5841] close(3 [pid 5842] <... close resumed>) = 0 [pid 5841] <... close resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] close(3 [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] set_robust_list(0x55556e26e660, 24) = 0 [pid 5845] chdir("./0") = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5847 attached ./strace-static-x86_64: Process 5846 attached [pid 5844] set_robust_list(0x55556e26e660, 24 [pid 5843] <... close resumed>) = 0 [pid 5845] setpgid(0, 0 [pid 5839] <... clone resumed>, child_tidptr=0x55556e26e650) = 5845 [pid 5847] set_robust_list(0x55556e26e660, 24 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached [pid 5847] <... set_robust_list resumed>) = 0 [pid 5846] set_robust_list(0x55556e26e660, 24 [pid 5845] <... setpgid resumed>) = 0 [pid 5844] chdir("./0" [pid 5849] set_robust_list(0x55556e26e660, 24 [pid 5847] chdir("./0" [pid 5846] <... set_robust_list resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... clone resumed>, child_tidptr=0x55556e26e650) = 5846 [pid 5841] <... clone resumed>, child_tidptr=0x55556e26e650) = 5847 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5846] chdir("./0" [pid 5845] <... openat resumed>) = 3 [pid 5849] chdir("./0" [pid 5846] <... chdir resumed>) = 0 [pid 5845] write(3, "1000", 4 [pid 5849] <... chdir resumed>) = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] <... write resumed>) = 4 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5846] <... prctl resumed>) = 0 [pid 5845] close(3 [pid 5849] <... prctl resumed>) = 0 [pid 5846] setpgid(0, 0 [pid 5849] setpgid(0, 0 [pid 5846] <... setpgid resumed>) = 0 [pid 5845] <... close resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... setpgid resumed>) = 0 [pid 5846] <... openat resumed>) = 3 [pid 5845] symlink("/dev/binderfs", "./binderfs" [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] write(3, "1000", 4) = 4 [pid 5847] <... chdir resumed>) = 0 [pid 5846] close(3 [pid 5845] <... symlink resumed>) = 0 [pid 5844] <... chdir resumed>) = 0 [pid 5843] <... clone resumed>, child_tidptr=0x55556e26e650) = 5849 [pid 5849] <... openat resumed>) = 3 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5846] <... close resumed>) = 0 [pid 5847] <... prctl resumed>) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] setpgid(0, 0 [pid 5846] symlink("/dev/binderfs", "./binderfs" [pid 5844] <... prctl resumed>) = 0 [pid 5847] <... setpgid resumed>) = 0 [pid 5849] write(3, "1000", 4 [pid 5846] <... symlink resumed>) = 0 [pid 5849] <... write resumed>) = 4 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] setpgid(0, 0executing program [pid 5849] close(3 [pid 5847] <... openat resumed>) = 3 [pid 5846] write(1, "executing program\n", 18executing program [pid 5845] write(1, "executing program\n", 18 [pid 5844] <... setpgid resumed>) = 0 [pid 5849] <... close resumed>) = 0 [pid 5847] write(3, "1000", 4 [pid 5846] <... write resumed>) = 18 [pid 5845] <... write resumed>) = 18 [pid 5849] symlink("/dev/binderfs", "./binderfs" [pid 5847] <... write resumed>) = 4 [pid 5845] memfd_create("syzkaller", 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] close(3 [pid 5849] <... symlink resumed>) = 0 [pid 5847] <... close resumed>) = 0 [pid 5846] memfd_create("syzkaller", 0 [pid 5844] <... openat resumed>) = 3 [pid 5847] symlink("/dev/binderfs", "./binderfs" [pid 5844] write(3, "1000", 4executing program [pid 5849] write(1, "executing program\n", 18executing program [pid 5847] <... symlink resumed>) = 0 [pid 5846] <... memfd_create resumed>) = 3 [pid 5845] <... memfd_create resumed>) = 3 [pid 5844] <... write resumed>) = 4 [pid 5849] <... write resumed>) = 18 [pid 5847] write(1, "executing program\n", 18 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5844] close(3 [pid 5847] <... write resumed>) = 18 [pid 5849] memfd_create("syzkaller", 0 [pid 5847] memfd_create("syzkaller", 0 [pid 5846] <... mmap resumed>) = 0x7f4ec4000000 [pid 5845] <... mmap resumed>) = 0x7f4ec4000000 [pid 5847] <... memfd_create resumed>) = 3 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5844] <... close resumed>) = 0 [pid 5849] <... memfd_create resumed>) = 3 [pid 5847] <... mmap resumed>) = 0x7f4ec4000000 [pid 5844] symlink("/dev/binderfs", "./binderfs" [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ec4000000 [pid 5844] <... symlink resumed>) = 0 [pid 5844] write(1, "executing program\n", 18executing program ) = 18 [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ec4000000 [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 5846] 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 5847] 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(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 5849] 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) = 16777216 [pid 5845] <... write resumed>) = 16777216 [pid 5844] <... write resumed>) = 16777216 [pid 5849] munmap(0x7f4ec4000000, 138412032 [pid 5845] munmap(0x7f4ec4000000, 138412032 [pid 5844] munmap(0x7f4ec4000000, 138412032 [pid 5846] <... write resumed>) = 16777216 [pid 5847] <... write resumed>) = 16777216 [pid 5845] <... munmap resumed>) = 0 [pid 5847] munmap(0x7f4ec4000000, 138412032 [pid 5846] munmap(0x7f4ec4000000, 138412032 [pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5844] <... munmap resumed>) = 0 [pid 5845] <... openat resumed>) = 4 [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5849] <... munmap resumed>) = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5844] <... openat resumed>) = 4 [pid 5849] <... openat resumed>) = 4 [pid 5845] ioctl(4, LOOP_SET_FD, 3 [pid 5844] ioctl(4, LOOP_SET_FD, 3 [pid 5847] <... munmap resumed>) = 0 [pid 5846] <... munmap resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5845] <... ioctl resumed>) = 0 [pid 5846] ioctl(4, LOOP_SET_FD, 3 [pid 5849] ioctl(4, LOOP_SET_FD, 3 [pid 5847] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5845] close(3 [pid 5844] <... ioctl resumed>) = 0 [pid 5846] <... ioctl resumed>) = 0 [pid 5846] close(3) = 0 [pid 5846] close(4) = 0 syzkaller login: [ 59.574834][ T5845] loop0: detected capacity change from 0 to 32768 [ 59.581740][ T5844] loop1: detected capacity change from 0 to 32768 [ 59.587416][ T5846] loop3: detected capacity change from 0 to 32768 [ 59.590581][ T5849] loop4: detected capacity change from 0 to 32768 [pid 5846] mkdir("./file0", 0777) = 0 [pid 5849] <... ioctl resumed>) = 0 [pid 5847] <... openat resumed>) = 4 [pid 5845] <... close resumed>) = 0 [pid 5844] close(3 [pid 5849] close(3) = 0 [pid 5849] close(4) = 0 [pid 5849] mkdir("./file0", 0777 [pid 5846] mount("/dev/loop3", "./file0", "jfs", MS_NODEV, "usrquota,iocharset=macroman,quota,nointegrity,usrquota,discard=0x0000000000000008,usrquota" [pid 5849] <... mkdir resumed>) = 0 [pid 5849] mount("/dev/loop4", "./file0", "jfs", MS_NODEV, "usrquota,iocharset=macroman,quota,nointegrity,usrquota,discard=0x0000000000000008,usrquota" [pid 5847] ioctl(4, LOOP_SET_FD, 3 [pid 5845] close(4 [pid 5844] <... close resumed>) = 0 [pid 5845] <... close resumed>) = 0 [pid 5844] close(4 [pid 5845] mkdir("./file0", 0777 [pid 5844] <... close resumed>) = 0 [pid 5849] <... mount resumed>) = 0 [pid 5845] <... mkdir resumed>) = 0 [pid 5844] mkdir("./file0", 0777 [pid 5849] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5844] <... mkdir resumed>) = 0 [pid 5844] mount("/dev/loop1", "./file0", "jfs", MS_NODEV, "usrquota,iocharset=macroman,quota,nointegrity,usrquota,discard=0x0000000000000008,usrquota" [pid 5845] mount("/dev/loop0", "./file0", "jfs", MS_NODEV, "usrquota,iocharset=macroman,quota,nointegrity,usrquota,discard=0x0000000000000008,usrquota" [pid 5849] <... openat resumed>) = 3 [pid 5849] chdir("./file0") = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5849] exit_group(0) = ? [pid 5846] <... mount resumed>) = 0 [pid 5844] <... mount resumed>) = 0 [pid 5846] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5846] chdir("./file0") = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5846] exit_group(0) = ? [pid 5846] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=17 /* 0.17 s */} --- [pid 5849] +++ exited with 0 +++ [pid 5847] <... ioctl resumed>) = 0 [pid 5845] <... mount resumed>) = 0 [pid 5844] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5847] close(3 [pid 5845] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5842] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5847] <... close resumed>) = 0 [pid 5845] <... openat resumed>) = 3 [pid 5844] <... openat resumed>) = 3 [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=25 /* 0.25 s */} --- [pid 5842] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5847] close(4 [pid 5845] chdir("./file0" [pid 5844] chdir("./file0" [pid 5843] restart_syscall(<... resuming interrupted clone ...> [pid 5842] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5847] <... close resumed>) = 0 [pid 5845] <... chdir resumed>) = 0 [pid 5844] <... chdir resumed>) = 0 [pid 5842] <... openat resumed>) = 3 [pid 5847] mkdir("./file0", 0777 [pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5842] newfstatat(3, "", [pid 5847] <... mkdir resumed>) = 0 [pid 5845] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5844] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5842] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5847] mount("/dev/loop2", "./file0", "jfs", MS_NODEV, "usrquota,iocharset=macroman,quota,nointegrity,usrquota,discard=0x0000000000000008,usrquota" [pid 5845] exit_group(0 [pid 5844] exit_group(0 [pid 5842] getdents64(3, [pid 5845] <... exit_group resumed>) = ? [pid 5844] <... exit_group resumed>) = ? [ 59.620820][ T5847] loop2: detected capacity change from 0 to 32768 [pid 5842] <... getdents64 resumed>0x55556e26f6f0 /* 4 entries */, 32768) = 112 [pid 5843] <... restart_syscall resumed>) = 0 [pid 5842] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5845] +++ exited with 0 +++ [pid 5844] +++ exited with 0 +++ [pid 5842] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5840] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=20 /* 0.20 s */} --- [pid 5843] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5842] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5840] restart_syscall(<... resuming interrupted clone ...> [pid 5839] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=29 /* 0.29 s */} --- [pid 5843] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] unlink("./0/binderfs" [pid 5840] <... restart_syscall resumed>) = 0 [pid 5839] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5842] <... unlink resumed>) = 0 [pid 5839] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5843] <... openat resumed>) = 3 [pid 5842] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5839] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5843] newfstatat(3, "", [pid 5840] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5839] <... openat resumed>) = 3 [pid 5843] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5840] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5839] newfstatat(3, "", [pid 5847] <... mount resumed>) = 0 [pid 5843] getdents64(3, [pid 5840] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5839] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5843] <... getdents64 resumed>0x55556e26f6f0 /* 4 entries */, 32768) = 112 [pid 5840] <... openat resumed>) = 3 [pid 5839] getdents64(3, [pid 5847] <... openat resumed>) = 3 [pid 5843] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] newfstatat(3, "", [pid 5839] <... getdents64 resumed>0x55556e26f6f0 /* 4 entries */, 32768) = 112 [pid 5847] chdir("./file0" [pid 5843] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5839] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5847] <... chdir resumed>) = 0 [pid 5843] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5840] getdents64(3, [pid 5839] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5847] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5843] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5840] <... getdents64 resumed>0x55556e26f6f0 /* 4 entries */, 32768) = 112 [pid 5839] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5847] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5843] unlink("./0/binderfs" [pid 5840] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5839] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5847] exit_group(0 [pid 5843] <... unlink resumed>) = 0 [pid 5840] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5839] unlink("./0/binderfs" [pid 5847] <... exit_group resumed>) = ? [pid 5843] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5839] <... unlink resumed>) = 0 [pid 5840] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5839] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] unlink("./0/binderfs" [pid 5847] +++ exited with 0 +++ [pid 5840] <... unlink resumed>) = 0 [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=18 /* 0.18 s */} --- [pid 5840] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] <... umount2 resumed>) = 0 [pid 5842] <... umount2 resumed>) = 0 [pid 5841] restart_syscall(<... resuming interrupted clone ...> [pid 5843] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5841] <... restart_syscall resumed>) = 0 [ 59.702708][ T5840] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI [ 59.715332][ T5840] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 59.723784][ T5840] CPU: 1 UID: 0 PID: 5840 Comm: syz-executor216 Not tainted 6.12.0-syzkaller-09837-g798bb342e041 #0 [ 59.734567][ T5840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 59.744650][ T5840] RIP: 0010:lmLogSync+0x228/0xae0 [pid 5843] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5843] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5842] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5841] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5842] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5843] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5842] newfstatat(AT_FDCWD, "./0/file0", [pid 5843] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5842] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5843] getdents64(4, 0x55556e277730 /* 2 entries */, 32768) = 48 [pid 5843] getdents64(4, 0x55556e277730 /* 0 entries */, 32768) = 0 [pid 5842] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] close(4) = 0 [pid 5842] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5843] rmdir("./0/file0" [pid 5842] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5843] <... rmdir resumed>) = 0 [pid 5842] <... openat resumed>) = 4 [pid 5843] getdents64(3, 0x55556e26f6f0 /* 0 entries */, 32768) = 0 [pid 5843] close(3 [pid 5842] newfstatat(4, "", [pid 5843] <... close resumed>) = 0 [pid 5843] rmdir("./0" [pid 5842] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5843] <... rmdir resumed>) = 0 [pid 5842] getdents64(4, 0x55556e277730 /* 2 entries */, 32768) = 48 [pid 5843] mkdir("./1", 0777) = 0 [pid 5842] getdents64(4, 0x55556e277730 /* 0 entries */, 32768) = 0 [pid 5842] close(4) = 0 [pid 5842] rmdir("./0/file0") = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5842] getdents64(3, [pid 5843] <... openat resumed>) = 3 [pid 5842] <... getdents64 resumed>0x55556e26f6f0 /* 0 entries */, 32768) = 0 [ 59.749724][ T5840] Code: a0 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 76 84 d0 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 59 84 d0 fe 48 8b 3b e8 51 f3 a0 [ 59.769349][ T5840] RSP: 0018:ffffc90003bafa40 EFLAGS: 00010206 [ 59.775431][ T5840] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88807a250000 [ 59.783415][ T5840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 59.791402][ T5840] RBP: ffffc90003bafb48 R08: ffffffff81ce093e R09: 0000000000000000 [pid 5842] close(3 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 5842] <... close resumed>) = 0 [pid 5843] <... ioctl resumed>) = 0 [pid 5842] rmdir("./0" [pid 5843] close(3 [pid 5842] <... rmdir resumed>) = 0 [pid 5842] mkdir("./1", 0777) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5842] ioctl(3, LOOP_CLR_FD) = 0 [ 59.799389][ T5840] R10: ffffc90003baf828 R11: fffff52000775f34 R12: ffff88801ee88800 [ 59.807379][ T5840] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88814bbf8a38 [ 59.815370][ T5840] FS: 000055556e26e380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 59.824320][ T5840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.831181][ T5840] CR2: 00007f4ecc630430 CR3: 0000000033da6000 CR4: 00000000003526f0 [ 59.839171][ T5840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.847158][ T5840] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.855151][ T5840] Call Trace: [ 59.858434][ T5840] [ 59.861370][ T5840] ? __die_body+0x5f/0xb0 [ 59.865721][ T5840] ? die_addr+0xb0/0xe0 [ 59.869883][ T5840] ? exc_general_protection+0x3dd/0x5d0 [ 59.875559][ T5840] ? asm_exc_general_protection+0x26/0x30 [ 59.881291][ T5840] ? filemap_flush+0x17e/0x260 [ 59.886074][ T5840] ? lmLogSync+0x228/0xae0 [ 59.890516][ T5840] ? __pfx_lmLogSync+0x10/0x10 [ 59.895299][ T5840] ? __pfx_dquot_writeback_dquots+0x10/0x10 [pid 5842] close(3 [pid 5843] <... close resumed>) = 0 [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... close resumed>) = 0 [pid 5841] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 59.901210][ T5840] jfs_syncpt+0x7d/0xa0 [ 59.905376][ T5840] jfs_sync_fs+0x8a/0xa0 [ 59.909627][ T5840] sync_filesystem+0xed/0x230 [ 59.914311][ T5840] generic_shutdown_super+0x72/0x2d0 [ 59.919612][ T5840] kill_block_super+0x44/0x90 [ 59.924301][ T5840] deactivate_locked_super+0xc4/0x130 [ 59.929684][ T5840] cleanup_mnt+0x41f/0x4b0 [ 59.934108][ T5840] ? lockdep_hardirqs_on+0x99/0x150 [ 59.939320][ T5840] task_work_run+0x24f/0x310 [ 59.943941][ T5840] ? __pfx_task_work_run+0x10/0x10 [ 59.949047][ T5840] ? path_umount+0x284/0xf70 [pid 5841] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5843] <... clone resumed>, child_tidptr=0x55556e26e650) = 5852 [pid 5841] <... openat resumed>) = 3 [pid 5841] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5853 attached ./strace-static-x86_64: Process 5852 attached [pid 5842] <... clone resumed>, child_tidptr=0x55556e26e650) = 5853 [pid 5841] getdents64(3, [pid 5853] set_robust_list(0x55556e26e660, 24 [pid 5852] set_robust_list(0x55556e26e660, 24 [pid 5841] <... getdents64 resumed>0x55556e26f6f0 /* 4 entries */, 32768) = 112 [pid 5853] <... set_robust_list resumed>) = 0 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5853] chdir("./1" [pid 5852] chdir("./1" [pid 5841] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5852] <... chdir resumed>) = 0 [pid 5841] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5853] <... chdir resumed>) = 0 [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5841] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5853] <... prctl resumed>) = 0 [pid 5852] <... prctl resumed>) = 0 [pid 5841] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5852] setpgid(0, 0 [pid 5853] setpgid(0, 0 [pid 5852] <... setpgid resumed>) = 0 [pid 5853] <... setpgid resumed>) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5841] unlink("./0/binderfs" [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5852] <... openat resumed>) = 3 [pid 5841] <... unlink resumed>) = 0 [pid 5853] <... openat resumed>) = 3 [pid 5841] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5852] write(3, "1000", 4) = 4 [pid 5852] close(3 [pid 5853] write(3, "1000", 4 [pid 5852] <... close resumed>) = 0 [pid 5853] <... write resumed>) = 4 [pid 5852] symlink("/dev/binderfs", "./binderfs" [pid 5853] close(3 [pid 5852] <... symlink resumed>) = 0 [pid 5853] <... close resumed>) = 0 [pid 5853] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5852] write(1, "executing program\n", 18) = 18 [pid 5853] write(1, "executing program\n", 18 [pid 5852] memfd_create("syzkaller", 0executing program [pid 5853] <... write resumed>) = 18 [pid 5853] memfd_create("syzkaller", 0 [pid 5852] <... memfd_create resumed>) = 3 [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ec4000000 [pid 5853] <... memfd_create resumed>) = 3 [pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ec4000000 [ 59.953634][ T5840] ptrace_notify+0x2d2/0x380 [ 59.958235][ T5840] ? __pfx_ptrace_notify+0x10/0x10 [ 59.963333][ T5840] ? kmem_cache_free+0x195/0x410 [ 59.968268][ T5840] ? __x64_sys_umount+0x123/0x170 [ 59.973304][ T5840] syscall_exit_work+0xe3/0x220 [ 59.978177][ T5840] syscall_exit_to_user_mode+0x24a/0x340 [ 59.983833][ T5840] do_syscall_64+0x100/0x230 [ 59.988446][ T5840] ? clear_bhb_loop+0x35/0x90 [ 59.993137][ T5840] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.999062][ T5840] RIP: 0033:0x7f4ecc630437 [ 60.003492][ T5840] 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 [ 60.023108][ T5840] RSP: 002b:00007ffd021d70e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 60.031542][ T5840] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4ecc630437 [ 60.039523][ T5840] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd021d71a0 [ 60.047517][ T5840] RBP: 00007ffd021d71a0 R08: 0000000000000000 R09: 0000000000000000 [ 60.055490][ T5840] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd021d8200 [ 60.063466][ T5840] R13: 000055556e26f6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 60.071451][ T5840] [ 60.074474][ T5840] Modules linked in: [ 60.078572][ T5840] ---[ end trace 0000000000000000 ]--- [ 60.088772][ T5840] RIP: 0010:lmLogSync+0x228/0xae0 [ 60.093832][ T5840] Code: a0 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 76 84 d0 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 59 84 d0 fe 48 8b 3b e8 51 f3 a0 [ 60.113921][ T5840] RSP: 0018:ffffc90003bafa40 EFLAGS: 00010206 [ 60.120743][ T5840] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88807a250000 [ 60.129014][ T5840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 60.137920][ T5840] RBP: ffffc90003bafb48 R08: ffffffff81ce093e R09: 0000000000000000 [ 60.146135][ T5840] R10: ffffc90003baf828 R11: fffff52000775f34 R12: ffff88801ee88800 [ 60.154124][ T5840] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88814bbf8a38 [ 60.162392][ T5840] FS: 000055556e26e380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 60.184728][ T5840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.191340][ T5840] CR2: 00007f4ecc630430 CR3: 0000000033da6000 CR4: 00000000003526f0 [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 [ 60.199873][ T5840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.208102][ T5840] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.216305][ T5840] Kernel panic - not syncing: Fatal exception [ 60.222514][ T5840] Kernel Offset: disabled [ 60.226826][ T5840] Rebooting in 86400 seconds..