Warning: Permanently added '10.128.0.154' (ED25519) to the list of known hosts.
executing program
[ 286.349673][ T27] INFO: task syz-executor777:4180 blocked for more than 143 seconds.
[ 286.358075][ T27] Not tainted 5.15.180-syzkaller #0
[ 286.364064][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 286.372815][ T27] task:syz-executor777 state:D stack:25632 pid: 4180 ppid: 4179 flags:0x00004002
[ 286.382157][ T27] Call Trace:
[ 286.385450][ T27]
[ 286.388380][ T27] __schedule+0x12c4/0x45b0
[ 286.392991][ T27] ? perf_event_release_kernel+0x5f4/0x900
[ 286.398973][ T27] ? __lock_acquire+0x1ff0/0x1ff0
[ 286.404033][ T27] ? release_firmware_map_entry+0x190/0x190
[ 286.409999][ T27] ? __mutex_unlock_slowpath+0x218/0x750
[ 286.415672][ T27] schedule+0x11b/0x1f0
[ 286.419900][ T27] perf_pending_task_sync+0x13c/0x1c0
[ 286.425335][ T27] _free_event+0x34/0xe60
[ 286.429736][ T27] perf_event_release_kernel+0x873/0x900
[ 286.435391][ T27] ? __might_sleep+0xc0/0xc0
[ 286.440043][ T27] ? calc_timer_values+0x420/0x420
[ 286.445184][ T27] ? ima_file_free+0xeb/0x3c0
[ 286.449924][ T27] perf_release+0x37/0x40
[ 286.454263][ T27] ? perf_mmap+0x13f0/0x13f0
[ 286.458899][ T27] __fput+0x3fe/0x8e0
[ 286.462920][ T27] task_work_run+0x129/0x1a0
[ 286.467509][ T27] do_exit+0x6a3/0x2480
[ 286.471716][ T27] ? put_task_struct+0x80/0x80
[ 286.476495][ T27] ? get_signal+0x8ac/0x14e0
[ 286.481164][ T27] do_group_exit+0x144/0x310
[ 286.485766][ T27] ? lockdep_hardirqs_on+0x94/0x130
[ 286.491159][ T27] get_signal+0xc66/0x14e0
[ 286.495597][ T27] arch_do_signal_or_restart+0xbd/0x12b0
[ 286.501299][ T27] ? asm_exc_page_fault+0x22/0x30
[ 286.506349][ T27] ? rcu_is_watching+0x11/0xa0
[ 286.511163][ T27] ? get_sigframe_size+0x10/0x10
[ 286.516136][ T27] ? exit_to_user_mode_loop+0x39/0x130
[ 286.521656][ T27] exit_to_user_mode_loop+0x97/0x130
[ 286.526956][ T27] exit_to_user_mode_prepare+0xb1/0x140
[ 286.532553][ T27] syscall_exit_to_user_mode+0x5d/0x240
[ 286.538136][ T27] do_syscall_64+0x47/0x80
[ 286.542617][ T27] ? clear_bhb_loop+0x15/0x70
[ 286.547310][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 286.553255][ T27] RIP: 0033:0x7febc0b85b79
[ 286.557681][ T27] RSP: 002b:00007ffe75202f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[ 286.566277][ T27] RAX: 0000000000001055 RBX: 0000000000000000 RCX: 00007febc0b85b79
[ 286.574290][ T27] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000126400
[ 286.582328][ T27] RBP: 0000000000003a28 R08: 0000000000000000 R09: 0000000000000006
[ 286.590353][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 286.598334][ T27] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[ 286.606369][ T27]
[ 286.609475][ T27]
[ 286.609475][ T27] Showing all locks held in the system:
[ 286.617208][ T27] 1 lock held by khungtaskd/27:
[ 286.622101][ T27] #0: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 286.631490][ T27] 2 locks held by getty/3924:
[ 286.636152][ T27] #0: ffff88814c392098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 286.645948][ T27] #1: ffffc900026362e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0
[ 286.656274][ T27]
[ 286.658654][ T27] =============================================
[ 286.658654][ T27]
[ 286.667066][ T27] NMI backtrace for cpu 1
[ 286.671474][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.180-syzkaller #0
[ 286.679437][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 286.689487][ T27] Call Trace:
[ 286.692766][ T27]
[ 286.695694][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 286.700370][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 286.705995][ T27] ? panic+0x860/0x860
[ 286.710055][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0
[ 286.715159][ T27] nmi_cpu_backtrace+0x46a/0x4a0
[ 286.720083][ T27] ? __wake_up_klogd+0xd5/0x100
[ 286.724926][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 286.731064][ T27] ? _printk+0xd1/0x120
[ 286.735206][ T27] ? panic+0x860/0x860
[ 286.739263][ T27] ? __wake_up_klogd+0xcc/0x100
[ 286.744096][ T27] ? panic+0x860/0x860
[ 286.748152][ T27] ? wq_watchdog_touch+0xeb/0x170
[ 286.753175][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 286.759225][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0
[ 286.765193][ T27] watchdog+0xe72/0xeb0
[ 286.769348][ T27] kthread+0x3f6/0x4f0
[ 286.773405][ T27] ? hungtask_pm_notify+0x50/0x50
[ 286.778418][ T27] ? kthread_blkcg+0xd0/0xd0
[ 286.783021][ T27] ret_from_fork+0x1f/0x30
[ 286.787429][ T27]
[ 286.790552][ T27] Sending NMI from CPU 1 to CPUs 0:
[ 286.795797][ C0] NMI backtrace for cpu 0 skipped: idling at default_idle+0xb/0x10
[ 286.796784][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 286.811471][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.180-syzkaller #0
[ 286.819431][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 286.829470][ T27] Call Trace:
[ 286.832734][ T27]
[ 286.835665][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 286.840334][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 286.845958][ T27] ? panic+0x860/0x860
[ 286.850022][ T27] panic+0x318/0x860
[ 286.853907][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 286.859527][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 286.865686][ T27] ? fb_is_primary_device+0xd0/0xd0
[ 286.870889][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 286.876964][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 286.883099][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0
[ 286.889243][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0
[ 286.895409][ T27] watchdog+0xeb0/0xeb0
[ 286.899556][ T27] kthread+0x3f6/0x4f0
[ 286.903611][ T27] ? hungtask_pm_notify+0x50/0x50
[ 286.908623][ T27] ? kthread_blkcg+0xd0/0xd0
[ 286.913215][ T27] ret_from_fork+0x1f/0x30
[ 286.917626][ T27]
[ 286.920907][ T27] Kernel Offset: disabled
[ 286.925233][ T27] Rebooting in 86400 seconds..