./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3968437759 <...> DUID 00:04:9f:e8:07:f9:ba:36:1f:d4:05:68:5a:d1:6a:7f:90:cd forked to background, child pid 3188 [ 27.953088][ T3189] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.963775][ T3189] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. execve("./syz-executor3968437759", ["./syz-executor3968437759"], 0x7fff26b50000 /* 10 vars */) = 0 brk(NULL) = 0x555556fc2000 brk(0x555556fc2c40) = 0x555556fc2c40 arch_prctl(ARCH_SET_FS, 0x555556fc2300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556fc25d0) = 3610 set_robust_list(0x555556fc25e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f9e008886e0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f9e00888db0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f9e00888780, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f9e00888db0}, 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-executor3968437759", 4096) = 28 brk(0x555556fe3c40) = 0x555556fe3c40 brk(0x555556fe4000) = 0x555556fe4000 mprotect(0x7f9e0094a000, 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() = 3610 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, "3610", 4) = 4 close(3) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3611 attached , child_tidptr=0x555556fc25d0) = 3611 [pid 3611] set_robust_list(0x555556fc25e0, 24) = 0 [pid 3611] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3611] setsid() = 1 [pid 3611] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3611] unshare(CLONE_NEWNS) = 0 [pid 3611] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3611] unshare(CLONE_NEWIPC) = 0 [pid 3611] unshare(CLONE_NEWCGROUP) = 0 [pid 3611] unshare(CLONE_NEWUTS) = 0 [pid 3611] unshare(CLONE_SYSVSEM) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "16777216", 8) = 8 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "536870912", 9) = 9 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "8192", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3611] close(3) = 0 [pid 3611] getpid() = 1 [pid 3611] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3613] set_robust_list(0x7f9e008789e0, 24) = 0 [pid 3613] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 3613] futex(0x7f9e009503ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f9e009503e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f9e009503ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... futex resumed>) = 1 [pid 3613] ioctl(3, NBD_SET_SIZE_BLOCKS, 129) = 0 [pid 3613] futex(0x7f9e009503ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f9e009503e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f9e009503ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... futex resumed>) = 1 [pid 3613] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 3613] futex(0x7f9e009503ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f9e009503e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3612] futex(0x7f9e009503ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3613] <... futex resumed>) = 1 [pid 3613] ioctl(3, NBD_SET_SOCK, 4) = 0 [pid 3613] futex(0x7f9e009503ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f9e009503e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] ioctl(3, NBD_DO_IT [pid 3612] <... futex resumed>) = 0 [pid 3612] futex(0x7f9e009503ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) syzkaller login: [ 57.091953][ T3613] nbd0: detected capacity change from 0 to 258 [pid 3612] close(3) = 0 [pid 3612] close(4) = 0 [pid 3612] close(5) = 0 [pid 3612] close(6) = -1 EBADF (Bad file descriptor) [pid 3612] close(7) = -1 EBADF (Bad file descriptor) [pid 3612] close(8) = -1 EBADF (Bad file descriptor) [pid 3612] close(9) = -1 EBADF (Bad file descriptor) [pid 3612] close(10) = -1 EBADF (Bad file descriptor) [pid 3612] close(11) = -1 EBADF (Bad file descriptor) [pid 3612] close(12) = -1 EBADF (Bad file descriptor) [pid 3612] close(13) = -1 EBADF (Bad file descriptor) [pid 3612] close(14) = -1 EBADF (Bad file descriptor) [pid 3612] close(15) = -1 EBADF (Bad file descriptor) [pid 3612] close(16) = -1 EBADF (Bad file descriptor) [pid 3612] close(17) = -1 EBADF (Bad file descriptor) [pid 3612] close(18) = -1 EBADF (Bad file descriptor) [pid 3612] close(19) = -1 EBADF (Bad file descriptor) [pid 3612] close(20) = -1 EBADF (Bad file descriptor) [pid 3612] close(21) = -1 EBADF (Bad file descriptor) [pid 3612] close(22) = -1 EBADF (Bad file descriptor) [pid 3612] close(23) = -1 EBADF (Bad file descriptor) [pid 3612] close(24) = -1 EBADF (Bad file descriptor) [pid 3612] close(25) = -1 EBADF (Bad file descriptor) [pid 3612] close(26) = -1 EBADF (Bad file descriptor) [pid 3612] close(27) = -1 EBADF (Bad file descriptor) [pid 3612] close(28) = -1 EBADF (Bad file descriptor) [pid 3612] close(29) = -1 EBADF (Bad file descriptor) [pid 3612] exit_group(0) = ? [ 57.273703][ T48] block nbd0: Receive control failed (result -104) [pid 3611] kill(-2, SIGKILL) = 0 [pid 3611] kill(2, SIGKILL) = 0 [pid 3611] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3611] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 3611] getdents64(3, 0x555556fc3620 /* 2 entries */, 32768) = 48 [pid 3611] getdents64(3, 0x555556fc3620 /* 0 entries */, 32768) = 0 [pid 3611] close(3) = 0 [ 76.249053][ T14] cfg80211: failed to load regulatory.db [ 87.127724][ T1118] block nbd0: Possible stuck request ffff88801fd50000: control (read@0,4096B). Runtime 30 seconds [ 117.207639][ T1118] block nbd0: Possible stuck request ffff88801fd50000: control (read@0,4096B). Runtime 60 seconds [ 117.261408][ T2976] udevd[2976]: worker [3615] /devices/virtual/block/nbd0 is taking a long time [ 147.287590][ T1118] block nbd0: Possible stuck request ffff88801fd50000: control (read@0,4096B). Runtime 90 seconds [ 177.367581][ T1118] block nbd0: Possible stuck request ffff88801fd50000: control (read@0,4096B). Runtime 120 seconds [ 207.447554][ T1118] block nbd0: Possible stuck request ffff88801fd50000: control (read@0,4096B). Runtime 150 seconds [ 220.887544][ T28] INFO: task syz-executor396:3613 blocked for more than 143 seconds. [ 220.895750][ T28] Not tainted 6.1.0-rc5-syzkaller #0 [ 220.901622][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 220.910352][ T28] task:syz-executor396 state:D stack:25992 pid:3613 ppid:3611 flags:0x00004006 [ 220.919638][ T28] Call Trace: [ 220.922922][ T28] [ 220.925842][ T28] __schedule+0x8fc/0xda0 [ 220.930271][ T28] ? __sched_text_start+0x8/0x8 [ 220.935128][ T28] ? __mutex_trylock_common+0x8e/0x2f0 [ 220.940655][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 220.945867][ T28] schedule+0xcb/0x190 [ 220.950320][ T28] schedule_preempt_disabled+0xf/0x20 [ 220.955733][ T28] __mutex_lock_common+0xecf/0x26c0 [ 220.961076][ T28] ? blkdev_put+0x100/0x730 [ 220.965596][ T28] ? mutex_lock_io_nested+0x60/0x60 [ 220.970874][ T28] mutex_lock_nested+0x17/0x20 [ 220.975641][ T28] blkdev_put+0x100/0x730 [ 220.980072][ T28] blkdev_close+0x55/0x80 [ 220.984411][ T28] ? blkdev_open+0x2e0/0x2e0 [ 220.989047][ T28] __fput+0x3ba/0x880 [ 220.993041][ T28] task_work_run+0x243/0x300 [ 220.997725][ T28] ? task_work_cancel+0x290/0x290 [ 221.002763][ T28] ptrace_notify+0x29a/0x340 [ 221.007364][ T28] ? task_work_add+0x2e6/0x340 [ 221.012224][ T28] ? do_notify_parent+0xeb0/0xeb0 [ 221.017266][ T28] ? rcu_lock_release+0x20/0x20 [ 221.022276][ T28] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 221.027844][ T28] syscall_exit_work+0x8c/0xe0 [ 221.032634][ T28] syscall_exit_to_user_mode_prepare+0x6b/0xc0 [ 221.038933][ T28] syscall_exit_to_user_mode+0xa/0x60 [ 221.044334][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 221.050307][ T28] RIP: 0033:0x7f9e008d2ea9 [ 221.054730][ T28] RSP: 002b:00007f9e00878308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 221.063238][ T28] RAX: 0000000000000000 RBX: 00007f9e009503e8 RCX: 00007f9e008d2ea9 [ 221.071276][ T28] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 221.079343][ T28] RBP: 00007f9e009503e0 R08: 0000000000000000 R09: 0000000000000000 [ 221.087326][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9e009503ec [ 221.095355][ T28] R13: 00007f9e0091d3a4 R14: 64626e2f7665642f R15: 0000000000022000 [ 221.105917][ T28] [ 221.109093][ T28] [ 221.109093][ T28] Showing all locks held in the system: [ 221.116835][ T28] 1 lock held by rcu_tasks_kthre/12: [ 221.122197][ T28] #0: ffffffff8cd1f670 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 221.132725][ T28] 1 lock held by rcu_tasks_trace/13: [ 221.138074][ T28] #0: ffffffff8cd1fe70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 221.149147][ T28] 1 lock held by khungtaskd/28: [ 221.154001][ T28] #0: ffffffff8cd1f4a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 221.163446][ T28] 2 locks held by getty/3287: [ 221.168178][ T28] #0: ffff888028e95098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 221.177963][ T28] #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 [ 221.188123][ T28] 1 lock held by syz-executor396/3613: [ 221.193566][ T28] #0: ffff8881474b44c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x100/0x730 [ 221.202996][ T28] 1 lock held by udevd/3615: [ 221.207625][ T28] #0: ffff8881474b44c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfd/0xa40 [ 221.217612][ T28] [ 221.219935][ T28] ============================================= [ 221.219935][ T28] [ 221.228393][ T28] NMI backtrace for cpu 0 [ 221.232717][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc5-syzkaller #0 [ 221.240776][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 221.250827][ T28] Call Trace: [ 221.254106][ T28] [ 221.257034][ T28] dump_stack_lvl+0x1e3/0x2cb [ 221.261732][ T28] ? nf_tcp_handle_invalid+0x62e/0x62e [ 221.267203][ T28] ? panic+0x766/0x766 [ 221.271274][ T28] ? console_unlock+0x331/0x6f0 [ 221.276132][ T28] ? console_trylock_spinning+0x450/0x450 [ 221.281858][ T28] ? nmi_cpu_backtrace+0x255/0x560 [ 221.286976][ T28] nmi_cpu_backtrace+0x4e3/0x560 [ 221.291914][ T28] ? vprintk_emit+0x109/0x1e0 [ 221.296596][ T28] ? nmi_trigger_cpumask_backtrace+0x3e0/0x3e0 [ 221.302742][ T28] ? _printk+0xcf/0x10f [ 221.306893][ T28] ? panic+0x766/0x766 [ 221.310957][ T28] ? __wake_up_klogd+0xcd/0x100 [ 221.315805][ T28] ? panic+0x766/0x766 [ 221.319870][ T28] ? nmi_trigger_cpumask_backtrace+0xaa/0x3e0 [ 221.325936][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 221.332000][ T28] nmi_trigger_cpumask_backtrace+0x19b/0x3e0 [ 221.337978][ T28] watchdog+0xcf5/0xd40 [ 221.342141][ T28] kthread+0x266/0x300 [ 221.346217][ T28] ? hungtask_pm_notify+0x50/0x50 [ 221.351241][ T28] ? kthread_blkcg+0xd0/0xd0 [ 221.355827][ T28] ret_from_fork+0x1f/0x30 [ 221.360251][ T28] [ 221.363466][ T28] Sending NMI from CPU 0 to CPUs 1: [ 221.368736][ C1] NMI backtrace for cpu 1 [ 221.368746][ C1] CPU: 1 PID: 2412 Comm: kworker/u4:6 Not tainted 6.1.0-rc5-syzkaller #0 [ 221.368760][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 221.368768][ C1] Workqueue: events_unbound toggle_allocation_gate [ 221.368791][ C1] RIP: 0010:lock_release+0x5a2/0x870 [ 221.368809][ C1] Code: 01 0f 85 8d 00 00 00 4c 89 f3 48 c1 eb 03 42 80 3c 23 00 74 08 4c 89 f7 e8 bb 5f 75 00 48 c7 84 24 90 00 00 00 00 00 00 00 9c <8f> 84 24 90 00 00 00 42 80 3c 23 00 74 08 4c 89 f7 e8 18 5f 75 00 [ 221.368820][ C1] RSP: 0018:ffffc9000b927678 EFLAGS: 00000046 [ 221.368830][ C1] RAX: 0000000000000001 RBX: 1ffff92001724ee2 RCX: ffffc9000b927703 [ 221.368840][ C1] RDX: 0000000000000005 RSI: ffffffff8aad7400 RDI: ffffffff8b0abec0 [ 221.368849][ C1] RBP: ffffc9000b9277c0 R08: dffffc0000000000 R09: fffffbfff1c4f136 [ 221.368858][ C1] R10: fffffbfff1c4f136 R11: 1ffffffff1c4f135 R12: dffffc0000000000 [ 221.368868][ C1] R13: 0000000000000246 R14: ffffc9000b927710 R15: 1ffff92001724edc [ 221.368877][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 221.368888][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 221.368897][ C1] CR2: 000055591e459600 CR3: 000000000ca8e000 CR4: 00000000003506e0 [ 221.368910][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 221.368918][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 221.368926][ C1] Call Trace: [ 221.368930][ C1] [ 221.368938][ C1] ? __text_poke+0x83f/0x9d0 [ 221.368953][ C1] ? __lock_acquire+0x1f60/0x1f60 [ 221.368974][ C1] ? lockdep_hardirqs_on_prepare+0x448/0x7b0 [ 221.368991][ C1] ? print_irqtrace_events+0x220/0x220 [ 221.369009][ C1] ? __kmem_cache_alloc_node+0xf8/0x310 [ 221.369025][ C1] _raw_spin_unlock+0x12/0x40 [ 221.369041][ C1] __text_poke+0x83f/0x9d0 [ 221.369055][ C1] ? __kmem_cache_alloc_node+0xf8/0x310 [ 221.369070][ C1] ? __text_poke+0x9d0/0x9d0 [ 221.369084][ C1] ? text_poke+0x90/0x90 [ 221.369095][ C1] ? rcu_read_lock_sched_held+0x89/0x130 [ 221.369111][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 221.369126][ C1] ? trace_raw_output_contention_end+0xd0/0xd0 [ 221.369143][ C1] ? trace_contention_end+0x72/0x1d0 [ 221.369162][ C1] ? __kmem_cache_alloc_node+0xf8/0x310 [ 221.369177][ C1] text_poke_bp_batch+0x14c/0x850 [ 221.369194][ C1] ? text_poke_loc_init+0x510/0x510 [ 221.369207][ C1] ? arch_jump_label_transform_queue+0x7c/0xd0 [ 221.369226][ C1] ? __jump_label_update+0x38e/0x3b0 [ 221.369246][ C1] text_poke_finish+0x16/0x30 [ 221.369258][ C1] arch_jump_label_transform_apply+0x13/0x20 [ 221.369275][ C1] static_key_disable_cpuslocked+0xc8/0x1b0 [ 221.369293][ C1] static_key_disable+0x16/0x20 [ 221.369309][ C1] toggle_allocation_gate+0x3d8/0x470 [ 221.369325][ C1] ? virt_to_slab+0x2c0/0x2c0 [ 221.369343][ C1] ? rcu_read_lock_sched_held+0x89/0x130 [ 221.369357][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 221.369371][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 221.369392][ C1] process_one_work+0x81c/0xd10 [ 221.369416][ C1] ? worker_detach_from_pool+0x260/0x260 [ 221.369434][ C1] ? _raw_spin_lock_irqsave+0x120/0x120 [ 221.369448][ C1] ? kthread_data+0x4d/0xc0 [ 221.369464][ C1] ? wq_worker_running+0x95/0x190 [ 221.369479][ C1] worker_thread+0xb14/0x1330 [ 221.369501][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 221.369523][ C1] kthread+0x266/0x300 [ 221.369537][ C1] ? rcu_lock_release+0x20/0x20 [ 221.369552][ C1] ? kthread_blkcg+0xd0/0xd0 [ 221.369567][ C1] ret_from_fork+0x1f/0x30 [ 221.369590][ C1] [ 221.369793][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 221.727272][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc5-syzkaller #0 [ 221.735332][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 221.745377][ T28] Call Trace: [ 221.748651][ T28] [ 221.751580][ T28] dump_stack_lvl+0x1e3/0x2cb [ 221.756261][ T28] ? nf_tcp_handle_invalid+0x62e/0x62e [ 221.761715][ T28] ? panic+0x766/0x766 [ 221.765785][ T28] ? vscnprintf+0x59/0x80 [ 221.770117][ T28] panic+0x316/0x766 [ 221.774011][ T28] ? schedule_preempt_disabled+0x20/0x20 [ 221.779643][ T28] ? nmi_trigger_cpumask_backtrace+0x2b0/0x3e0 [ 221.785793][ T28] ? memcpy_page_flushcache+0xfc/0xfc [ 221.791166][ T28] ? nmi_trigger_cpumask_backtrace+0x2b0/0x3e0 [ 221.797314][ T28] ? nmi_trigger_cpumask_backtrace+0x32a/0x3e0 [ 221.803467][ T28] ? nmi_trigger_cpumask_backtrace+0x32f/0x3e0 [ 221.809615][ T28] watchdog+0xd35/0xd40 [ 221.813781][ T28] kthread+0x266/0x300 [ 221.817848][ T28] ? hungtask_pm_notify+0x50/0x50 [ 221.822867][ T28] ? kthread_blkcg+0xd0/0xd0 [ 221.827459][ T28] ret_from_fork+0x1f/0x30 [ 221.831903][ T28] [ 221.835075][ T28] Kernel Offset: disabled [ 221.839396][ T28] Rebooting in 86400 seconds..