./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3538217945 <...> Warning: Permanently added '10.128.10.29' (ECDSA) to the list of known hosts. execve("./syz-executor3538217945", ["./syz-executor3538217945"], 0x7fff7530b450 /* 10 vars */) = 0 brk(NULL) = 0x555556b4f000 brk(0x555556b4fd40) = 0x555556b4fd40 arch_prctl(ARCH_SET_FS, 0x555556b4f400) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556b4f6d0) = 4999 set_robust_list(0x555556b4f6e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f7deed37720, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f7deed36c70}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f7deed377c0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7deed36c70}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3538217945", 4096) = 28 brk(0x555556b70d40) = 0x555556b70d40 brk(0x555556b71000) = 0x555556b71000 mprotect(0x7f7deedfa000, 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 getpid() = 4999 openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 write(3, "10000000000", 11) = 11 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 write(3, "20", 2) = 2 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 write(3, "100", 3) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 write(3, "7 4 1 3", 7) = 7 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 write(3, "4999", 4) = 4 close(3) = 0 mount(NULL, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, NULL) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x30\x3a\x4d\x3a\x30\x3a\x01\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a", 21) = 21 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x31\x3a\x4d\x3a\x31\x3a\x02\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a\x50\x4f\x43", 24) = 24 close(3) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f7deed30a80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f7deed36c70}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f7deed30a80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f7deed36c70}, NULL, 8) = 0 getpid() = 4999 mkdir("./syzkaller.Tpffuc", 0700) = 0 chmod("./syzkaller.Tpffuc", 0777) = 0 chdir("./syzkaller.Tpffuc") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5000 attached , child_tidptr=0x555556b4f6d0) = 5000 [pid 5000] set_robust_list(0x555556b4f6e0, 24) = 0 [pid 5000] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5000] setsid() = 1 [pid 5000] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5000] unshare(CLONE_NEWNS) = 0 [pid 5000] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5000] unshare(CLONE_NEWIPC) = 0 [pid 5000] unshare(CLONE_NEWCGROUP) = 0 [pid 5000] unshare(CLONE_NEWUTS) = 0 [pid 5000] unshare(CLONE_SYSVSEM) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "16777216", 8) = 8 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "536870912", 9) = 9 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "8192", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5000] close(3) = 0 [pid 5000] getpid() = 1 [pid 5000] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5004] set_robust_list(0x7f7deed259e0, 24) = 0 [pid 5004] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... clone resumed>, parent_tid=[3], tls=0x7f7deed25700, child_tidptr=0x7f7deed259d0) = 3 [pid 5003] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5004] <... futex resumed>) = 0 [pid 5003] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5004] memfd_create("syzkaller", 0) = 3 [ 40.993215][ T74] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.002640][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [pid 5004] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7de6905000 [pid 5004] 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"..., 1048576) = 1048576 [pid 5004] munmap(0x7f7de6905000, 1048576) = 0 [pid 5004] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5004] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5004] close(3) = 0 [pid 5004] mkdir("./file0", 0777) = 0 [pid 5004] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 5004] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5004] chdir("./file0") = 0 [pid 5004] ioctl(4, LOOP_CLR_FD) = 0 [ 41.049929][ T5004] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5004 'syz-executor353' [ 41.070184][ T5004] loop0: detected capacity change from 0 to 2048 [pid 5004] close(4) = 0 [pid 5004] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... futex resumed>) = 0 [pid 5003] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5004] <... futex resumed>) = 1 [pid 5004] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|0x29800030, 000) = 4 [pid 5004] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... futex resumed>) = 0 [pid 5003] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7de69e4000 [pid 5003] mprotect(0x7f7de69e5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5003] clone(child_stack=0x7f7de6a042f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5008 attached , parent_tid=[4], tls=0x7f7de6a04700, child_tidptr=0x7f7de6a049d0) = 4 [pid 5003] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5008] set_robust_list(0x7f7de6a049e0, 24 [pid 5004] <... futex resumed>) = 1 [pid 5004] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9 [pid 5008] <... set_robust_list resumed>) = 0 [pid 5008] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9 [pid 5004] <... write resumed>) = 9 [pid 5004] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5004] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5008] <... write resumed>) = 9 [pid 5008] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... futex resumed>) = 0 [pid 5003] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5003] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5004] <... futex resumed>) = 0 [pid 5008] <... futex resumed>) = 1 [pid 5004] open("./bus", O_RDWR [pid 5008] futex(0x7f7deee00798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5004] <... open resumed>) = 5 [pid 5004] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... futex resumed>) = 0 [pid 5003] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5004] <... futex resumed>) = 1 [pid 5004] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 5003] <... futex resumed>) = 0 [pid 5003] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5004] <... futex resumed>) = 1 [ 41.091496][ T5004] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [pid 5004] ioctl(5, _IOC(_IOC_WRITE, 0x66, 0x29, 0x4), 0x20000040) = -1 EFAULT (Bad address) [pid 5004] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5003] <... futex resumed>) = 0 [pid 5003] close(3) = 0 [pid 5004] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] close(4) = 0 [pid 5003] close(5) = 0 [pid 5003] close(6) = -1 EBADF (Bad file descriptor) [pid 5003] close(7) = -1 EBADF (Bad file descriptor) [pid 5003] close(8) = -1 EBADF (Bad file descriptor) [pid 5003] close(9) = -1 EBADF (Bad file descriptor) [pid 5003] close(10) = -1 EBADF (Bad file descriptor) [pid 5003] close(11) = -1 EBADF (Bad file descriptor) [pid 5003] close(12) = -1 EBADF (Bad file descriptor) [pid 5003] close(13) = -1 EBADF (Bad file descriptor) [pid 5003] close(14) = -1 EBADF (Bad file descriptor) [pid 5003] close(15) = -1 EBADF (Bad file descriptor) [pid 5003] close(16) = -1 EBADF (Bad file descriptor) [pid 5003] close(17) = -1 EBADF (Bad file descriptor) [pid 5003] close(18) = -1 EBADF (Bad file descriptor) [pid 5003] close(19) = -1 EBADF (Bad file descriptor) [pid 5003] close(20) = -1 EBADF (Bad file descriptor) [pid 5003] close(21) = -1 EBADF (Bad file descriptor) [pid 5003] close(22) = -1 EBADF (Bad file descriptor) [pid 5003] close(23) = -1 EBADF (Bad file descriptor) [pid 5003] close(24) = -1 EBADF (Bad file descriptor) [pid 5003] close(25) = -1 EBADF (Bad file descriptor) [pid 5003] close(26) = -1 EBADF (Bad file descriptor) [pid 5003] close(27) = -1 EBADF (Bad file descriptor) [pid 5003] close(28) = -1 EBADF (Bad file descriptor) [pid 5003] close(29) = -1 EBADF (Bad file descriptor) [pid 5003] exit_group(0) = ? [pid 5008] <... futex resumed>) = ? [pid 5004] <... futex resumed>) = ? [pid 5008] +++ exited with 0 +++ [pid 5004] +++ exited with 0 +++ [pid 5003] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./0/binderfs") = 0 [ 41.142115][ T5004] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1097: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [pid 5000] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5000] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b58760 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b58760 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./0/file0") = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./0") = 0 [pid 5000] mkdir("./1", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b4f6d0) = 5 ./strace-static-x86_64: Process 5009 attached [pid 5009] set_robust_list(0x555556b4f6e0, 24) = 0 [pid 5009] chdir("./1") = 0 [pid 5009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5009] setpgid(0, 0) = 0 [pid 5009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5009] write(3, "1000", 4) = 4 [pid 5009] close(3) = 0 [pid 5009] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5009] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7deed05000 [pid 5009] mprotect(0x7f7deed06000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5009] clone(child_stack=0x7f7deed252f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6], tls=0x7f7deed25700, child_tidptr=0x7f7deed259d0) = 6 [pid 5009] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5009] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5010 attached [pid 5010] set_robust_list(0x7f7deed259e0, 24) = 0 [pid 5010] memfd_create("syzkaller", 0) = 3 [pid 5010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7de6905000 [pid 5010] 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"..., 1048576) = 1048576 [pid 5010] munmap(0x7f7de6905000, 1048576) = 0 [ 41.190025][ T5000] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [pid 5010] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5010] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5010] close(3) = 0 [pid 5010] mkdir("./file0", 0777) = 0 [pid 5010] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 5010] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5010] chdir("./file0") = 0 [pid 5010] ioctl(4, LOOP_CLR_FD) = 0 [pid 5010] close(4) = 0 [pid 5010] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5009] <... futex resumed>) = 0 [pid 5009] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5009] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|0x29800030, 000) = 4 [pid 5010] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5009] <... futex resumed>) = 0 [pid 5009] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9 [pid 5009] <... futex resumed>) = 0 [pid 5009] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5010] <... write resumed>) = 9 [pid 5010] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... mmap resumed>) = 0x7f7de69e4000 [pid 5010] <... futex resumed>) = 0 [pid 5010] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5009] mprotect(0x7f7de69e5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5009] clone(child_stack=0x7f7de6a042f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5013 attached [pid 5013] set_robust_list(0x7f7de6a049e0, 24 [pid 5009] <... clone resumed>, parent_tid=[7], tls=0x7f7de6a04700, child_tidptr=0x7f7de6a049d0) = 7 [pid 5013] <... set_robust_list resumed>) = 0 [pid 5009] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9 [pid 5009] <... futex resumed>) = 0 [pid 5009] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5013] <... write resumed>) = 9 [pid 5013] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5009] <... futex resumed>) = 0 [pid 5013] futex(0x7f7deee00798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5009] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] <... futex resumed>) = 0 [pid 5009] <... futex resumed>) = 1 [pid 5010] open("./bus", O_RDWR [pid 5009] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] <... open resumed>) = 5 [pid 5010] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5009] <... futex resumed>) = 0 [pid 5010] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 5009] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5009] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] <... mmap resumed>) = 0x20000000 [pid 5010] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5009] <... futex resumed>) = 0 [pid 5010] ioctl(5, _IOC(_IOC_WRITE, 0x66, 0x29, 0x4), 0x20000040 [pid 5009] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 41.261353][ T5010] loop0: detected capacity change from 0 to 2048 [ 41.280487][ T5010] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [pid 5009] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] <... ioctl resumed>) = -1 EFAULT (Bad address) [pid 5010] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5009] <... futex resumed>) = 0 [pid 5010] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5009] close(3) = 0 [pid 5009] close(4) = 0 [pid 5009] close(5) = 0 [pid 5009] close(6) = -1 EBADF (Bad file descriptor) [pid 5009] close(7) = -1 EBADF (Bad file descriptor) [pid 5009] close(8) = -1 EBADF (Bad file descriptor) [pid 5009] close(9) = -1 EBADF (Bad file descriptor) [pid 5009] close(10) = -1 EBADF (Bad file descriptor) [pid 5009] close(11) = -1 EBADF (Bad file descriptor) [pid 5009] close(12) = -1 EBADF (Bad file descriptor) [pid 5009] close(13) = -1 EBADF (Bad file descriptor) [pid 5009] close(14) = -1 EBADF (Bad file descriptor) [pid 5009] close(15) = -1 EBADF (Bad file descriptor) [pid 5009] close(16) = -1 EBADF (Bad file descriptor) [pid 5009] close(17) = -1 EBADF (Bad file descriptor) [pid 5009] close(18) = -1 EBADF (Bad file descriptor) [pid 5009] close(19) = -1 EBADF (Bad file descriptor) [pid 5009] close(20) = -1 EBADF (Bad file descriptor) [pid 5009] close(21) = -1 EBADF (Bad file descriptor) [pid 5009] close(22) = -1 EBADF (Bad file descriptor) [pid 5009] close(23) = -1 EBADF (Bad file descriptor) [pid 5009] close(24) = -1 EBADF (Bad file descriptor) [pid 5009] close(25) = -1 EBADF (Bad file descriptor) [pid 5009] close(26) = -1 EBADF (Bad file descriptor) [pid 5009] close(27) = -1 EBADF (Bad file descriptor) [pid 5009] close(28) = -1 EBADF (Bad file descriptor) [pid 5009] close(29) = -1 EBADF (Bad file descriptor) [pid 5009] exit_group(0 [pid 5013] <... futex resumed>) = ? [pid 5010] <... futex resumed>) = ? [pid 5009] <... exit_group resumed>) = ? [pid 5013] +++ exited with 0 +++ [pid 5010] +++ exited with 0 +++ [pid 5009] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5000] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./1/binderfs") = 0 [pid 5000] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5000] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b58760 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b58760 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./1/file0") = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./1") = 0 [pid 5000] mkdir("./2", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [ 41.318253][ T5010] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1097: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 41.348363][ T5000] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b4f6d0) = 8 ./strace-static-x86_64: Process 5014 attached [pid 5014] set_robust_list(0x555556b4f6e0, 24) = 0 [pid 5014] chdir("./2") = 0 [pid 5014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5014] setpgid(0, 0) = 0 [pid 5014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5014] write(3, "1000", 4) = 4 [pid 5014] close(3) = 0 [pid 5014] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5014] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7deed05000 [pid 5014] mprotect(0x7f7deed06000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5014] clone(child_stack=0x7f7deed252f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5015 attached [pid 5015] set_robust_list(0x7f7deed259e0, 24) = 0 [pid 5015] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5014] <... clone resumed>, parent_tid=[9], tls=0x7f7deed25700, child_tidptr=0x7f7deed259d0) = 9 [pid 5014] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5015] <... futex resumed>) = 0 [pid 5015] memfd_create("syzkaller", 0 [pid 5014] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5015] <... memfd_create resumed>) = 3 [pid 5015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7de6905000 [pid 5015] 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"..., 1048576) = 1048576 [pid 5015] munmap(0x7f7de6905000, 1048576) = 0 [pid 5015] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5015] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5015] close(3) = 0 [pid 5015] mkdir("./file0", 0777) = 0 [pid 5015] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 5015] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5015] chdir("./file0") = 0 [pid 5015] ioctl(4, LOOP_CLR_FD) = 0 [pid 5015] close(4) = 0 [pid 5015] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = 0 [pid 5014] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5014] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5015] <... futex resumed>) = 1 [pid 5015] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|0x29800030, 000) = 4 [pid 5015] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = 0 [pid 5014] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5014] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7de69e4000 [pid 5014] mprotect(0x7f7de69e5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5014] clone(child_stack=0x7f7de6a042f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[10], tls=0x7f7de6a04700, child_tidptr=0x7f7de6a049d0) = 10 [pid 5014] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5014] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5015] <... futex resumed>) = 1 [pid 5015] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9) = 9 [pid 5015] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5015] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5018 attached [pid 5018] set_robust_list(0x7f7de6a049e0, 24) = 0 [pid 5018] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9) = 9 [pid 5018] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5014] <... futex resumed>) = 0 [pid 5014] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000 [pid 5015] <... futex resumed>) = 0 [pid 5014] <... futex resumed>) = 1 [pid 5015] open("./bus", O_RDWR [pid 5014] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5015] <... open resumed>) = 5 [pid 5018] futex(0x7f7deee00798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5015] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5014] <... futex resumed>) = 0 [pid 5014] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5014] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5015] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 5014] <... futex resumed>) = 0 [pid 5014] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5015] <... futex resumed>) = 1 [pid 5014] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 41.432170][ T5015] loop0: detected capacity change from 0 to 2048 [ 41.450094][ T5015] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [pid 5015] ioctl(5, _IOC(_IOC_WRITE, 0x66, 0x29, 0x4), 0x20000040) = -1 EFAULT (Bad address) [pid 5015] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = 0 [pid 5014] close(3) = 0 [pid 5015] <... futex resumed>) = 1 [pid 5015] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5014] close(4) = 0 [pid 5014] close(5) = 0 [pid 5014] close(6) = -1 EBADF (Bad file descriptor) [pid 5014] close(7) = -1 EBADF (Bad file descriptor) [pid 5014] close(8) = -1 EBADF (Bad file descriptor) [pid 5014] close(9) = -1 EBADF (Bad file descriptor) [pid 5014] close(10) = -1 EBADF (Bad file descriptor) [pid 5014] close(11) = -1 EBADF (Bad file descriptor) [pid 5014] close(12) = -1 EBADF (Bad file descriptor) [pid 5014] close(13) = -1 EBADF (Bad file descriptor) [pid 5014] close(14) = -1 EBADF (Bad file descriptor) [pid 5014] close(15) = -1 EBADF (Bad file descriptor) [pid 5014] close(16) = -1 EBADF (Bad file descriptor) [pid 5014] close(17) = -1 EBADF (Bad file descriptor) [pid 5014] close(18) = -1 EBADF (Bad file descriptor) [pid 5014] close(19) = -1 EBADF (Bad file descriptor) [pid 5014] close(20) = -1 EBADF (Bad file descriptor) [pid 5014] close(21) = -1 EBADF (Bad file descriptor) [pid 5014] close(22) = -1 EBADF (Bad file descriptor) [pid 5014] close(23) = -1 EBADF (Bad file descriptor) [pid 5014] close(24) = -1 EBADF (Bad file descriptor) [pid 5014] close(25) = -1 EBADF (Bad file descriptor) [pid 5014] close(26) = -1 EBADF (Bad file descriptor) [pid 5014] close(27) = -1 EBADF (Bad file descriptor) [pid 5014] close(28) = -1 EBADF (Bad file descriptor) [pid 5014] close(29) = -1 EBADF (Bad file descriptor) [pid 5014] exit_group(0 [pid 5018] <... futex resumed>) = ? [pid 5014] <... exit_group resumed>) = ? [pid 5018] +++ exited with 0 +++ [pid 5015] <... futex resumed>) = ? [pid 5015] +++ exited with 0 +++ [pid 5014] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./2/binderfs") = 0 [pid 5000] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5000] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b58760 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b58760 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./2/file0") = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./2") = 0 [pid 5000] mkdir("./3", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b4f6d0) = 11 ./strace-static-x86_64: Process 5019 attached [pid 5019] set_robust_list(0x555556b4f6e0, 24) = 0 [pid 5019] chdir("./3") = 0 [pid 5019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5019] setpgid(0, 0) = 0 [pid 5019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1000", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5019] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7deed05000 [pid 5019] mprotect(0x7f7deed06000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5019] clone(child_stack=0x7f7deed252f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5020 attached , parent_tid=[12], tls=0x7f7deed25700, child_tidptr=0x7f7deed259d0) = 12 [pid 5020] set_robust_list(0x7f7deed259e0, 24) = 0 [pid 5020] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5019] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5020] <... futex resumed>) = 0 [pid 5020] memfd_create("syzkaller", 0) = 3 [pid 5020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7de6905000 [pid 5019] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5020] 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"..., 1048576) = 1048576 [pid 5020] munmap(0x7f7de6905000, 1048576) = 0 [pid 5020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 41.492784][ T5015] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1097: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 41.528861][ T5000] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [pid 5020] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5020] close(3) = 0 [pid 5020] mkdir("./file0", 0777) = 0 [pid 5020] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 5020] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5020] chdir("./file0") = 0 [pid 5020] ioctl(4, LOOP_CLR_FD) = 0 [pid 5020] close(4) = 0 [pid 5020] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5019] <... futex resumed>) = 0 [pid 5019] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5019] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5020] <... futex resumed>) = 1 [pid 5020] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|0x29800030, 000) = 4 [pid 5020] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5019] <... futex resumed>) = 0 [pid 5019] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5019] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7de69e4000 [pid 5019] mprotect(0x7f7de69e5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5019] clone(child_stack=0x7f7de6a042f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[13], tls=0x7f7de6a04700, child_tidptr=0x7f7de6a049d0) = 13 [pid 5019] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5019] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5020] <... futex resumed>) = 1 [pid 5020] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9) = 9 [pid 5020] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5023 attached [pid 5023] set_robust_list(0x7f7de6a049e0, 24) = 0 [pid 5023] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9) = 9 [pid 5023] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5019] <... futex resumed>) = 0 [pid 5019] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5019] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5020] <... futex resumed>) = 0 [pid 5020] open("./bus", O_RDWR) = 5 [pid 5020] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5019] <... futex resumed>) = 0 [pid 5019] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5019] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5020] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 5019] <... futex resumed>) = 0 [pid 5019] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5019] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5020] <... futex resumed>) = 1 [pid 5020] ioctl(5, _IOC(_IOC_WRITE, 0x66, 0x29, 0x4), 0x20000040 [pid 5023] <... futex resumed>) = 1 [ 41.582073][ T5020] loop0: detected capacity change from 0 to 2048 [ 41.600495][ T5020] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [pid 5023] futex(0x7f7deee00798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5020] <... ioctl resumed>) = -1 EFAULT (Bad address) [pid 5020] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5019] <... futex resumed>) = 0 [pid 5019] close(3) = 0 [pid 5019] close(4) = 0 [pid 5019] close(5) = 0 [pid 5019] close(6) = -1 EBADF (Bad file descriptor) [pid 5019] close(7) = -1 EBADF (Bad file descriptor) [pid 5019] close(8) = -1 EBADF (Bad file descriptor) [pid 5019] close(9) = -1 EBADF (Bad file descriptor) [pid 5019] close(10) = -1 EBADF (Bad file descriptor) [pid 5019] close(11) = -1 EBADF (Bad file descriptor) [pid 5019] close(12) = -1 EBADF (Bad file descriptor) [pid 5019] close(13) = -1 EBADF (Bad file descriptor) [pid 5019] close(14) = -1 EBADF (Bad file descriptor) [pid 5019] close(15) = -1 EBADF (Bad file descriptor) [pid 5019] close(16) = -1 EBADF (Bad file descriptor) [pid 5019] close(17) = -1 EBADF (Bad file descriptor) [pid 5019] close(18) = -1 EBADF (Bad file descriptor) [pid 5019] close(19) = -1 EBADF (Bad file descriptor) [pid 5019] close(20) = -1 EBADF (Bad file descriptor) [pid 5019] close(21) = -1 EBADF (Bad file descriptor) [pid 5019] close(22) = -1 EBADF (Bad file descriptor) [pid 5019] close(23) = -1 EBADF (Bad file descriptor) [pid 5019] close(24) = -1 EBADF (Bad file descriptor) [pid 5019] close(25) = -1 EBADF (Bad file descriptor) [pid 5019] close(26) = -1 EBADF (Bad file descriptor) [pid 5019] close(27) = -1 EBADF (Bad file descriptor) [pid 5019] close(28) = -1 EBADF (Bad file descriptor) [pid 5019] close(29) = -1 EBADF (Bad file descriptor) [pid 5019] exit_group(0 [pid 5023] <... futex resumed>) = ? [pid 5019] <... exit_group resumed>) = ? [pid 5023] +++ exited with 0 +++ [pid 5020] <... futex resumed>) = ? [pid 5020] +++ exited with 0 +++ [pid 5019] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5000] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./3/binderfs") = 0 [pid 5000] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5000] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b58760 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b58760 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./3/file0") = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./3") = 0 [pid 5000] mkdir("./4", 0777) = 0 [ 41.626448][ T5020] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1097: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 41.658972][ T5000] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [pid 5000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5024 attached [pid 5024] set_robust_list(0x555556b4f6e0, 24) = 0 [pid 5024] chdir("./4") = 0 [pid 5024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5024] setpgid(0, 0) = 0 [pid 5024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5024] write(3, "1000", 4) = 4 [pid 5024] close(3) = 0 [pid 5024] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5024] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7deed05000 [pid 5024] mprotect(0x7f7deed06000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5024] clone(child_stack=0x7f7deed252f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[15], tls=0x7f7deed25700, child_tidptr=0x7f7deed259d0) = 15 [pid 5024] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5025 attached [pid 5025] set_robust_list(0x7f7deed259e0, 24) = 0 [pid 5025] memfd_create("syzkaller", 0) = 3 [pid 5025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7de6905000 [pid 5000] <... clone resumed>, child_tidptr=0x555556b4f6d0) = 14 [pid 5025] 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"..., 1048576) = 1048576 [pid 5025] munmap(0x7f7de6905000, 1048576) = 0 [pid 5025] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5025] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5025] close(3) = 0 [pid 5025] mkdir("./file0", 0777) = 0 [pid 5025] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 5025] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5025] chdir("./file0") = 0 [pid 5025] ioctl(4, LOOP_CLR_FD) = 0 [pid 5025] close(4) = 0 [pid 5025] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5025] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5024] <... futex resumed>) = 0 [pid 5024] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5024] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5025] <... futex resumed>) = 0 [pid 5025] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|0x29800030, 000) = 4 [pid 5025] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5024] <... futex resumed>) = 0 [pid 5024] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7de69e4000 [pid 5024] mprotect(0x7f7de69e5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5024] clone(child_stack=0x7f7de6a042f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[16], tls=0x7f7de6a04700, child_tidptr=0x7f7de6a049d0) = 16 [pid 5024] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5028 attached [pid 5025] <... futex resumed>) = 1 [pid 5025] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9) = 9 [pid 5025] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5025] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5028] set_robust_list(0x7f7de6a049e0, 24) = 0 [pid 5028] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9) = 9 [pid 5028] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5024] <... futex resumed>) = 0 [pid 5024] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5024] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5025] <... futex resumed>) = 0 [pid 5025] open("./bus", O_RDWR [pid 5028] <... futex resumed>) = 1 [pid 5025] <... open resumed>) = 5 [pid 5028] futex(0x7f7deee00798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5025] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5024] <... futex resumed>) = 0 [pid 5024] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5025] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<) = 0 [pid 5024] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 41.744848][ T5025] loop0: detected capacity change from 0 to 2048 [ 41.770280][ T5025] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [pid 5025] ioctl(5, _IOC(_IOC_WRITE, 0x66, 0x29, 0x4), 0x20000040) = -1 EFAULT (Bad address) [pid 5025] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5024] <... futex resumed>) = 0 [pid 5024] close(3) = 0 [pid 5024] close(4) = 0 [pid 5024] close(5) = 0 [pid 5024] close(6) = -1 EBADF (Bad file descriptor) [pid 5024] close(7) = -1 EBADF (Bad file descriptor) [pid 5024] close(8) = -1 EBADF (Bad file descriptor) [pid 5024] close(9) = -1 EBADF (Bad file descriptor) [pid 5024] close(10) = -1 EBADF (Bad file descriptor) [pid 5024] close(11) = -1 EBADF (Bad file descriptor) [pid 5024] close(12) = -1 EBADF (Bad file descriptor) [pid 5024] close(13) = -1 EBADF (Bad file descriptor) [pid 5024] close(14) = -1 EBADF (Bad file descriptor) [pid 5024] close(15) = -1 EBADF (Bad file descriptor) [pid 5024] close(16) = -1 EBADF (Bad file descriptor) [pid 5024] close(17) = -1 EBADF (Bad file descriptor) [pid 5024] close(18) = -1 EBADF (Bad file descriptor) [pid 5024] close(19) = -1 EBADF (Bad file descriptor) [pid 5024] close(20) = -1 EBADF (Bad file descriptor) [pid 5024] close(21) = -1 EBADF (Bad file descriptor) [pid 5024] close(22) = -1 EBADF (Bad file descriptor) [pid 5024] close(23) = -1 EBADF (Bad file descriptor) [pid 5024] close(24) = -1 EBADF (Bad file descriptor) [pid 5024] close(25) = -1 EBADF (Bad file descriptor) [pid 5024] close(26) = -1 EBADF (Bad file descriptor) [pid 5024] close(27) = -1 EBADF (Bad file descriptor) [pid 5024] close(28) = -1 EBADF (Bad file descriptor) [pid 5024] close(29) = -1 EBADF (Bad file descriptor) [pid 5024] exit_group(0 [pid 5028] <... futex resumed>) = ? [pid 5024] <... exit_group resumed>) = ? [pid 5028] +++ exited with 0 +++ [pid 5025] +++ exited with 0 +++ [pid 5024] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./4/binderfs") = 0 [pid 5000] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5000] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b58760 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b58760 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./4/file0") = 0 [pid 5000] getdents64(3, 0x555556b50720 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./4") = 0 [pid 5000] mkdir("./5", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 41.803650][ T5025] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1097: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 41.839597][ T5000] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b4f6d0) = 17 ./strace-static-x86_64: Process 5029 attached [pid 5029] set_robust_list(0x555556b4f6e0, 24) = 0 [pid 5029] chdir("./5") = 0 [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5029] setpgid(0, 0) = 0 [pid 5029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5029] write(3, "1000", 4) = 4 [pid 5029] close(3) = 0 [pid 5029] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5029] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7deed05000 [pid 5029] mprotect(0x7f7deed06000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5029] clone(child_stack=0x7f7deed252f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5030 attached , parent_tid=[18], tls=0x7f7deed25700, child_tidptr=0x7f7deed259d0) = 18 [pid 5030] set_robust_list(0x7f7deed259e0, 24) = 0 [pid 5030] futex(0x7f7deee00788, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5029] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5030] <... futex resumed>) = 0 [pid 5030] memfd_create("syzkaller", 0 [pid 5029] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5030] <... memfd_create resumed>) = 3 [pid 5030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7de6905000 [pid 5030] 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"..., 1048576) = 1048576 [pid 5030] munmap(0x7f7de6905000, 1048576) = 0 [pid 5030] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5030] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5030] close(3) = 0 [pid 5030] mkdir("./file0", 0777) = 0 [pid 5030] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 5030] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5030] chdir("./file0") = 0 [pid 5030] ioctl(4, LOOP_CLR_FD) = 0 [pid 5030] close(4) = 0 [pid 5030] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... futex resumed>) = 0 [pid 5029] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] futex(0x7f7deee0078c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5030] <... futex resumed>) = 1 [pid 5030] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOFOLLOW|O_NOATIME|0x29800030, 000) = 4 [pid 5030] futex(0x7f7deee0078c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5029] <... futex resumed>) = 0 [pid 5029] futex(0x7f7deee00788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7de69e4000 [pid 5029] mprotect(0x7f7de69e5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5029] clone(child_stack=0x7f7de6a042f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[19], tls=0x7f7de6a04700, child_tidptr=0x7f7de6a049d0) = 19 [pid 5029] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5033 attached [pid 5033] set_robust_list(0x7f7de6a049e0, 24) = 0 [pid 5033] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00", 9) = 9 [pid 5033] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... futex resumed>) = 0 [pid 5029] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] <... futex resumed>) = 1 [pid 5033] open("./bus", O_RDWR) = 5 [pid 5033] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... futex resumed>) = 0 [pid 5029] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] <... futex resumed>) = 1 [pid 5033] mmap(0x20000000, 6291456, PROT_WRITE|PROT_EXEC|PROT_SEM|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 5030] write(4, 0x20000f80, 9 [pid 5033] <... mmap resumed>) = 0x20000000 [pid 5033] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... futex resumed>) = 0 [pid 5029] futex(0x7f7deee00798, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5029] futex(0x7f7deee0079c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] <... futex resumed>) = 1 [ 41.920021][ T5030] loop0: detected capacity change from 0 to 2048 [ 41.940771][ T5030] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [pid 5033] ioctl(5, _IOC(_IOC_WRITE, 0x66, 0x29, 0x4), 0x20000040) = -1 EFAULT (Bad address) [pid 5033] futex(0x7f7deee0079c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... futex resumed>) = 0 [pid 5033] <... futex resumed>) = 1 [ 41.973399][ T5033] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1097: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 41.989547][ T5030] ------------[ cut here ]------------ [ 41.995310][ T5030] kernel BUG at fs/ext4/ext4_jbd2.c:53! [ 42.001241][ T5030] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 42.007303][ T5030] CPU: 0 PID: 5030 Comm: syz-executor353 Not tainted 6.4.0-rc4-syzkaller-00047-gafead42fdfca #0 [ 42.017707][ T5030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 42.027762][ T5030] RIP: 0010:__ext4_journal_stop+0x1b7/0x1f0 [ 42.033673][ T5030] Code: bf c9 1a 00 31 ff 89 de 41 89 c4 e8 13 59 5e ff 85 db 44 0f 45 e3 e9 5e ff ff ff e8 d3 25 b1 ff e9 ae fe ff ff e8 d9 5c 5e ff <0f> 0b 4c 89 e7 e8 df 25 b1 ff e9 e5 fe ff ff 48 89 ef e8 d2 25 b1 [ 42.053296][ T5030] RSP: 0018:ffffc90003aff960 EFLAGS: 00010293 [ 42.059382][ T5030] RAX: 0000000000000000 RBX: 0000000000000012 RCX: 0000000000000000 [pid 5033] futex(0x7f7deee00798, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5029] close(3) = 0 [pid 5029] close(4) = 0 [pid 5029] close(5) = 0 [pid 5029] close(6) = -1 EBADF (Bad file descriptor) [pid 5029] close(7) = -1 EBADF (Bad file descriptor) [pid 5029] close(8) = -1 EBADF (Bad file descriptor) [pid 5029] close(9) = -1 EBADF (Bad file descriptor) [pid 5029] close(10) = -1 EBADF (Bad file descriptor) [pid 5029] close(11) = -1 EBADF (Bad file descriptor) [pid 5029] close(12) = -1 EBADF (Bad file descriptor) [pid 5029] close(13) = -1 EBADF (Bad file descriptor) [pid 5029] close(14) = -1 EBADF (Bad file descriptor) [pid 5029] close(15) = -1 EBADF (Bad file descriptor) [pid 5029] close(16) = -1 EBADF (Bad file descriptor) [pid 5029] close(17) = -1 EBADF (Bad file descriptor) [ 42.067356][ T5030] RDX: ffff888028428000 RSI: ffffffff8225e747 RDI: 0000000000000007 [ 42.075339][ T5030] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000fff [ 42.083321][ T5030] R10: 0000000000000000 R11: 0000000000000004 R12: ffff888078b8b500 [ 42.091305][ T5030] R13: ffffffff8a62f0e0 R14: 000000000000032a R15: 0000000000000004 [ 42.099280][ T5030] FS: 00007f7deed25700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 42.108201][ T5030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.114786][ T5030] CR2: 00007f7deed26000 CR3: 000000001638e000 CR4: 0000000000350ef0 [pid 5029] close(18) = -1 EBADF (Bad file descriptor) [pid 5029] close(19) = -1 EBADF (Bad file descriptor) [pid 5029] close(20) = -1 EBADF (Bad file descriptor) [pid 5029] close(21) = -1 EBADF (Bad file descriptor) [pid 5029] close(22) = -1 EBADF (Bad file descriptor) [pid 5029] close(23) = -1 EBADF (Bad file descriptor) [pid 5029] close(24) = -1 EBADF (Bad file descriptor) [pid 5029] close(25) = -1 EBADF (Bad file descriptor) [pid 5029] close(26) = -1 EBADF (Bad file descriptor) [ 42.122777][ T5030] Call Trace: [ 42.126043][ T5030] [ 42.128958][ T5030] ? die+0x32/0x90 [ 42.132679][ T5030] ? do_trap+0x1b2/0x3f0 [ 42.136935][ T5030] ? __ext4_journal_stop+0x1b7/0x1f0 [ 42.142214][ T5030] ? __ext4_journal_stop+0x1b7/0x1f0 [ 42.147497][ T5030] ? do_error_trap+0xb1/0x170 [ 42.152167][ T5030] ? __ext4_journal_stop+0x1b7/0x1f0 [ 42.157452][ T5030] ? handle_invalid_op+0x2c/0x30 [ 42.162381][ T5030] ? __ext4_journal_stop+0x1b7/0x1f0 [ 42.167659][ T5030] ? exc_invalid_op+0x2f/0x50 [ 42.172334][ T5030] ? asm_exc_invalid_op+0x1a/0x20 [ 42.177348][ T5030] ? __ext4_journal_stop+0x1b7/0x1f0 [ 42.182621][ T5030] ? __ext4_journal_stop+0x1b7/0x1f0 [ 42.187899][ T5030] ext4_write_inline_data_end+0x4cf/0xd20 [ 42.193619][ T5030] ? ext4_try_to_write_inline_data+0x1340/0x1340 [ 42.199989][ T5030] ? ext4_da_write_begin+0x22b/0x8c0 [ 42.205271][ T5030] ? csum_and_copy_from_iter+0x1460/0x1460 [ 42.211084][ T5030] ext4_da_write_end+0x3d0/0xad0 [ 42.216009][ T5030] generic_perform_write+0x316/0x570 [ 42.221302][ T5030] ? generic_file_readonly_mmap+0x180/0x180 [ 42.227237][ T5030] ? iunique+0x370/0x370 [ 42.231505][ T5030] ext4_buffered_write_iter+0x15b/0x460 [ 42.237041][ T5030] ext4_file_write_iter+0xbe0/0x1740 [ 42.242317][ T5030] ? ext4_file_mmap+0x6c0/0x6c0 [ 42.247159][ T5030] vfs_write+0x945/0xd50 [ 42.251387][ T5030] ? kernel_write+0x670/0x670 [ 42.256050][ T5030] ? recalc_sigpending_tsk+0x18b/0x1d0 [ 42.261508][ T5030] ? __fget_files+0x26a/0x480 [ 42.266203][ T5030] ksys_write+0x12b/0x250 [ 42.270520][ T5030] ? __ia32_sys_read+0xb0/0xb0 [ 42.275270][ T5030] ? lockdep_hardirqs_on+0x7d/0x100 [ 42.280457][ T5030] ? _raw_spin_unlock_irq+0x2e/0x50 [ 42.285665][ T5030] ? ptrace_notify+0xfe/0x140 [ 42.290370][ T5030] do_syscall_64+0x39/0xb0 [ 42.294828][ T5030] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.300713][ T5030] RIP: 0033:0x7f7deed820a9 [ 42.305112][ T5030] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 5029] close(27) = -1 EBADF (Bad file descriptor) [pid 5029] close(28) = -1 EBADF (Bad file descriptor) [pid 5029] close(29) = -1 EBADF (Bad file descriptor) [pid 5029] exit_group(0 [pid 5033] <... futex resumed>) = ? [pid 5029] <... exit_group resumed>) = ? [pid 5033] +++ exited with 0 +++ [ 42.324710][ T5030] RSP: 002b:00007f7deed25208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.333106][ T5030] RAX: ffffffffffffffda RBX: 00007f7deee00788 RCX: 00007f7deed820a9 [ 42.341098][ T5030] RDX: 0000000000000009 RSI: 0000000020000f80 RDI: 0000000000000004 [ 42.349073][ T5030] RBP: 00007f7deee00780 R08: 0000000000000000 R09: 0000000000000000 [ 42.357030][ T5030] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7deee0078c [ 42.365008][ T5030] R13: 00007ffea546a1cf R14: 00007f7deed25300 R15: 0000000000022000 [ 42.372990][ T5030] [ 42.375990][ T5030] Modules linked in: [ 42.380973][ T5030] ---[ end trace 0000000000000000 ]--- [ 42.386441][ T5030] RIP: 0010:__ext4_journal_stop+0x1b7/0x1f0 [ 42.392371][ T5030] Code: bf c9 1a 00 31 ff 89 de 41 89 c4 e8 13 59 5e ff 85 db 44 0f 45 e3 e9 5e ff ff ff e8 d3 25 b1 ff e9 ae fe ff ff e8 d9 5c 5e ff <0f> 0b 4c 89 e7 e8 df 25 b1 ff e9 e5 fe ff ff 48 89 ef e8 d2 25 b1 [ 42.412027][ T5030] RSP: 0018:ffffc90003aff960 EFLAGS: 00010293 [ 42.418117][ T5030] RAX: 0000000000000000 RBX: 0000000000000012 RCX: 0000000000000000 [ 42.426105][ T5030] RDX: ffff888028428000 RSI: ffffffff8225e747 RDI: 0000000000000007 [ 42.434102][ T5030] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000fff [ 42.442105][ T5030] R10: 0000000000000000 R11: 0000000000000004 R12: ffff888078b8b500 [ 42.450114][ T5030] R13: ffffffff8a62f0e0 R14: 000000000000032a R15: 0000000000000004 [ 42.458123][ T5030] FS: 00007f7deed25700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 42.467056][ T5030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.473681][ T5030] CR2: 00007f7deed26000 CR3: 000000001638e000 CR4: 0000000000350ef0 [ 42.481685][ T5030] Kernel panic - not syncing: Fatal exception [ 42.487803][ T5030] Kernel Offset: disabled [ 42.492115][ T5030] Rebooting in 86400 seconds..