./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3150888177 <...> [ 3.565535][ T99] udevd[99]: starting version 3.2.11 [ 3.593836][ T100] udevd[100]: starting eudev-3.2.11 [ 7.253813][ T110] udevd (110) used greatest stack depth: 22608 bytes left [ 14.882308][ T30] kauditd_printk_skb: 50 callbacks suppressed [ 14.882324][ T30] audit: type=1400 audit(1683367355.251:61): avc: denied { transition } for pid=226 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.891708][ T30] audit: type=1400 audit(1683367355.251:62): avc: denied { noatsecure } for pid=226 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.896084][ T30] audit: type=1400 audit(1683367355.251:63): avc: denied { write } for pid=226 comm="sh" path="pipe:[326]" dev="pipefs" ino=326 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.903499][ T30] audit: type=1400 audit(1683367355.251:64): avc: denied { rlimitinh } for pid=226 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.922139][ T30] audit: type=1400 audit(1683367355.251:65): avc: denied { siginh } for pid=226 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.519831][ T244] scp (244) used greatest stack depth: 22288 bytes left Warning: Permanently added '10.128.0.158' (ECDSA) to the list of known hosts. execve("./syz-executor3150888177", ["./syz-executor3150888177"], 0x7ffd0bb606d0 /* 10 vars */) = 0 brk(NULL) = 0x555556f89000 brk(0x555556f89d40) = 0x555556f89d40 arch_prctl(ARCH_SET_FS, 0x555556f89400) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556f896d0) = 297 set_robust_list(0x555556f896e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7fdef4eda510, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fdef4ed9a60}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fdef4eda5b0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fdef4ed9a60}, 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-executor3150888177", 4096) = 28 brk(0x555556faad40) = 0x555556faad40 brk(0x555556fab000) = 0x555556fab000 mprotect(0x7fdef4f9e000, 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() = 297 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, "297", 3) = 3 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=0x7fdef4ed0c10, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fdef4ed9a60}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7fdef4ed0c10, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fdef4ed9a60}, NULL, 8) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f896d0) = 298 ./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x555556f896e0, 24) = 0 [pid 298] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setsid() = 1 [pid 298] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 298] unshare(CLONE_NEWNS) = 0 [pid 298] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 298] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 298] unshare(CLONE_NEWCGROUP) = 0 [pid 298] unshare(CLONE_NEWUTS) = 0 [pid 298] unshare(CLONE_SYSVSEM) = 0 [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] getpid() = 1 [pid 298] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 298] futex(0x7fdef4fa4788, FUTEX_WAKE_PRIVATE, 1000000 [pid 304] <... set_robust_list resumed>) = 0 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fdef4fa478c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 304] memfd_create("syzkaller", 0) = 3 [pid 304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdeecaa5000 [ 26.214335][ T298] device veth1_macvtap entered promiscuous mode [ 26.242897][ T303] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.256468][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [pid 304] 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 304] munmap(0x7fdeecaa5000, 1048576) = 0 [pid 304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 304] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 304] close(3) = 0 [pid 304] mkdir("./file0", 0777) = 0 [pid 304] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 304] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 304] chdir("./file0") = 0 [pid 304] ioctl(4, LOOP_CLR_FD) = 0 [pid 304] close(4) = 0 [pid 304] futex(0x7fdef4fa478c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fdef4fa4788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fdef4fa478c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] clone3({flags=CLONE_NEWNET|CLONE_IO, exit_signal=SIGRT_26, stack=0x20000440, stack_size=0x2b, cgroup=4294967295}, 88./strace-static-x86_64: Process 309 attached [pid 309] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 309] --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=NULL} --- [pid 304] <... clone3 resumed>) = 3 [pid 304] futex(0x7fdef4fa478c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fdef4fa4788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fdef4fa478c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] pwritev(-1, [{iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base="\xdd\xbf\x20\x11\x80\x6e\x67\x20\xf3\x19\xcf\x73\x28\x57\x6c\x50\x12\x72\x06\x76\xd8\x4a\x28\x50\x00\x3d\xe9\xdb\x12\xcf\xcf\x67\x8d\x01\x9c\x76\xb7\x93\x20\x58\x2d\x67\xd9\xd9\xe5\x71\xb9\x73\x61\x6e\x6b\x40\x78\x1e\xc3\xf1\xb4\x35\xb3\xf0\x29\x89\xf9\x4c\x0f\x97\x94\x8d\x7e\xb4\x0f\xa3\x0d\x34\xab\x7b\x60\xe5\x49\x47\x26\x9e\xbf\x42\x00\x4d\x94\x3f\xeb\x7c\x6a\xaf\x40\xe3\x05\x79\x7c\x4d\x8e\xe5"..., iov_len=234}], 3, 241) = -1 EBADF (Bad file descriptor) [pid 304] futex(0x7fdef4fa478c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fdef4fa4788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fdef4fa478c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 304] futex(0x7fdef4fa478c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fdef4fa4788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fdef4fa478c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0 [pid 304] futex(0x7fdef4fa478c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fdef4fa4788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fdef4fa478c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 304] futex(0x7fdef4fa478c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fdef4fa4788, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fdef4fa478c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = 1 [pid 304] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651) = 1048576 [pid 304] futex(0x7fdef4fa478c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] close(3) = 0 [pid 298] close(4) = 0 [pid 298] close(5) = 0 [pid 298] close(6) = -1 EBADF (Bad file descriptor) [pid 298] close(7) = -1 EBADF (Bad file descriptor) [pid 298] close(8) = -1 EBADF (Bad file descriptor) [pid 298] close(9) = -1 EBADF (Bad file descriptor) [pid 298] close(10) = -1 EBADF (Bad file descriptor) [pid 298] close(11) = -1 EBADF (Bad file descriptor) [pid 298] close(12) = -1 EBADF (Bad file descriptor) [pid 298] close(13) = -1 EBADF (Bad file descriptor) [pid 298] close(14) = -1 EBADF (Bad file descriptor) [pid 298] close(15) = -1 EBADF (Bad file descriptor) [pid 298] close(16) = -1 EBADF (Bad file descriptor) [pid 298] close(17) = -1 EBADF (Bad file descriptor) [pid 298] close(18) = -1 EBADF (Bad file descriptor) [pid 298] close(19) = -1 EBADF (Bad file descriptor) [pid 298] close(20) = -1 EBADF (Bad file descriptor) [pid 298] close(21) = -1 EBADF (Bad file descriptor) [pid 298] close(22) = -1 EBADF (Bad file descriptor) [pid 298] close(23) = -1 EBADF (Bad file descriptor) [pid 298] close(24) = -1 EBADF (Bad file descriptor) [pid 298] close(25) = -1 EBADF (Bad file descriptor) [pid 298] close(26) = -1 EBADF (Bad file descriptor) [pid 298] close(27) = -1 EBADF (Bad file descriptor) [pid 298] close(28) = -1 EBADF (Bad file descriptor) [ 26.302030][ T304] loop0: detected capacity change from 0 to 2048 [ 26.320823][ T304] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none. [pid 298] close(29) = -1 EBADF (Bad file descriptor) [pid 298] exit_group(1) = ? [pid 304] <... futex resumed>) = ? [ 26.381951][ T298] syz-executor315 (298) used greatest stack depth: 21104 bytes left [ 26.396762][ T309] ------------[ cut here ]------------ [ 26.402211][ T309] kernel BUG at fs/ext4/ext4.h:3355! [ 26.407304][ T309] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 26.413200][ T309] CPU: 0 PID: 309 Comm: syz-executor315 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0 [ 26.423264][ T309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 26.433166][ T309] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00 [ 26.439156][ T309] Code: 11 0f c8 ff e9 0d f4 ff ff e8 87 c7 86 ff 48 c7 c7 80 81 a9 86 4c 89 fe 4c 89 f2 e8 05 93 9a 00 e9 87 f2 ff ff e8 6b c7 86 ff <0f> 0b e8 64 c7 86 ff 0f 0b e8 5d c7 86 ff 0f 0b 66 2e 0f 1f 84 00 [ 26.458595][ T309] RSP: 0000:ffffc90000a474a0 EFLAGS: 00010293 [ 26.464494][ T309] RAX: ffffffff81e92455 RBX: 00000000fffff01a RCX: ffff888117b113c0 [ 26.472336][ T309] RDX: 0000000000000000 RSI: 00000000fffff01a RDI: 0000000000000001 [ 26.480118][ T309] RBP: ffffc90000a47530 R08: ffffffff81e91684 R09: ffffed102125a952 [ 26.487938][ T309] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11021510279 [ 26.495738][ T309] R13: ffff88810a8813c8 R14: 0000000000000001 R15: ffff88810a0c4000 [ 26.503551][ T309] FS: 00007fdef4ec5700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 26.512315][ T309] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.518736][ T309] CR2: 0000561755727188 CR3: 000000011fbc8000 CR4: 00000000003506b0 [ 26.526552][ T309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.534362][ T309] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.542192][ T309] Call Trace: [ 26.545296][ T309] [ 26.548078][ T309] ? exc_page_fault+0x47a/0x830 [ 26.552762][ T309] ? asm_exc_page_fault+0x27/0x30 [ 26.557622][ T309] ext4_discard_preallocations+0x79c/0xef0 [ 26.563266][ T309] ? mb_test_and_clear_bits+0x240/0x240 [ 26.568644][ T309] ? rwsem_write_trylock+0x15b/0x290 [ 26.573766][ T309] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 26.579078][ T309] ext4_release_file+0x16e/0x310 [ 26.583838][ T309] ? ext4_file_open+0x700/0x700 [ 26.588543][ T309] __fput+0x3fe/0x910 [ 26.592353][ T309] ____fput+0x15/0x20 [ 26.596261][ T309] task_work_run+0x129/0x190 [ 26.600687][ T309] ptrace_notify+0x29e/0x350 [ 26.605109][ T309] ? do_notify_parent+0xa30/0xa30 [ 26.609965][ T309] ? up_read+0x5a/0x180 [ 26.613953][ T309] ? blocking_notifier_call_chain+0x127/0x140 [ 26.619858][ T309] do_exit+0x2123/0x2b60 [ 26.623935][ T309] ? simple_acl_create+0x2c0/0x2c0 [ 26.628881][ T309] ? _raw_spin_lock_irqsave+0x210/0x210 [ 26.634261][ T309] ? cgroup_update_frozen+0x15f/0x980 [ 26.639470][ T309] ? put_task_struct+0x80/0x80 [ 26.644072][ T309] do_group_exit+0x141/0x310 [ 26.648499][ T309] get_signal+0x7a3/0x1630 [ 26.652763][ T309] arch_do_signal_or_restart+0xbd/0x1680 [ 26.658230][ T309] ? force_sig_fault+0x127/0x1d0 [ 26.662994][ T309] ? get_sigframe_size+0x10/0x10 [ 26.667794][ T309] ? page_fault_oops+0xa90/0xa90 [ 26.672544][ T309] ? arch_do_signal_or_restart+0xbd/0x1680 [ 26.678183][ T309] exit_to_user_mode_loop+0xa0/0xe0 [ 26.683214][ T309] exit_to_user_mode_prepare+0x5a/0xa0 [ 26.688512][ T309] irqentry_exit_to_user_mode+0x9/0x20 [ 26.693891][ T309] irqentry_exit+0x12/0x40 [ 26.698175][ T309] exc_page_fault+0x47a/0x830 [ 26.702662][ T309] asm_exc_page_fault+0x27/0x30 [ 26.707345][ T309] RIP: 0033:0x0 [ 26.710640][ T309] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [ 26.718194][ T309] RSP: 002b:0000000020000473 EFLAGS: 00010217 [ 26.724095][ T309] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdef4f24bf9 [ 26.731905][ T309] RDX: 00007fdef4f24bf9 RSI: 0000000000000058 RDI: 00007fdef4ec5110 [ 26.739718][ T309] RBP: 00007fdef4fa4780 R08: 0000000000000000 R09: 00000000c0000000 [ 26.747613][ T309] R10: 00007fdef4ec5110 R11: 0000000000000246 R12: 00007fdef4fa478c [ 26.755425][ T309] R13: 00007ffcae3418af R14: 00007fdef4ec5300 R15: 0000000000022000 [ 26.763243][ T309] [ 26.766106][ T309] Modules linked in: [ 26.772798][ T309] ---[ end trace bbdb54182f523b9c ]--- [ 26.778095][ T309] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00 [ 26.784166][ T309] Code: 11 0f c8 ff e9 0d f4 ff ff e8 87 c7 86 ff 48 c7 c7 80 81 a9 86 4c 89 fe 4c 89 f2 e8 05 93 9a 00 e9 87 f2 ff ff e8 6b c7 86 ff <0f> 0b e8 64 c7 86 ff 0f 0b e8 5d c7 86 ff 0f 0b 66 2e 0f 1f 84 00 [ 26.803547][ T309] RSP: 0000:ffffc90000a474a0 EFLAGS: 00010293 [ 26.809536][ T309] RAX: ffffffff81e92455 RBX: 00000000fffff01a RCX: ffff888117b113c0 [ 26.817323][ T309] RDX: 0000000000000000 RSI: 00000000fffff01a RDI: 0000000000000001 [ 26.825232][ T309] RBP: ffffc90000a47530 R08: ffffffff81e91684 R09: ffffed102125a952 [ 26.833061][ T309] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11021510279 [ 26.841168][ T309] R13: ffff88810a8813c8 R14: 0000000000000001 R15: ffff88810a0c4000 [ 26.848984][ T309] FS: 00007fdef4ec5700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 26.857831][ T309] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.864293][ T309] CR2: 00005601546a30f8 CR3: 000000011fbc8000 CR4: 00000000003506a0 [ 26.872070][ T309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.879933][ T309] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.887683][ T309] Kernel panic - not syncing: Fatal exception [ 26.893728][ T309] Kernel Offset: disabled [ 26.897869][ T309] Rebooting in 86400 seconds..