Warning: Permanently added '10.128.1.117' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 429.819241][ T27] INFO: task syz-executor535:4646 blocked for more than 143 seconds. [ 429.827555][ T27] Not tainted 5.15.179-syzkaller #0 [ 429.833339][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.842164][ T27] task:syz-executor535 state:D stack:26624 pid: 4646 ppid: 4179 flags:0x00004006 [ 429.851577][ T27] Call Trace: [ 429.854902][ T27] [ 429.857979][ T27] __schedule+0x12c4/0x45b0 [ 429.862609][ T27] ? perf_event_release_kernel+0x5f4/0x900 [ 429.868447][ T27] ? __lock_acquire+0x1ff0/0x1ff0 [ 429.873601][ T27] ? release_firmware_map_entry+0x190/0x190 [ 429.879570][ T27] ? __mutex_unlock_slowpath+0x218/0x750 [ 429.885226][ T27] schedule+0x11b/0x1f0 [ 429.889446][ T27] perf_pending_task_sync+0x13c/0x1c0 [ 429.894882][ T27] _free_event+0x34/0xe60 [ 429.899374][ T27] perf_event_release_kernel+0x873/0x900 [ 429.905068][ T27] ? calc_timer_values+0x420/0x420 [ 429.910351][ T27] ? __rwlock_init+0x140/0x140 [ 429.915167][ T27] ? ima_file_free+0xeb/0x3c0 [ 429.919905][ T27] perf_release+0x37/0x40 [ 429.924412][ T27] ? perf_mmap+0x13f0/0x13f0 [ 429.929069][ T27] __fput+0x3fe/0x8e0 [ 429.933091][ T27] task_work_run+0x129/0x1a0 [ 429.937698][ T27] exit_to_user_mode_loop+0x106/0x130 [ 429.943144][ T27] exit_to_user_mode_prepare+0xb1/0x140 [ 429.948714][ T27] syscall_exit_to_user_mode+0x5d/0x240 [ 429.954328][ T27] do_syscall_64+0x47/0xb0 [ 429.958763][ T27] ? clear_bhb_loop+0x15/0x70 [ 429.963485][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 429.969422][ T27] RIP: 0033:0x7f4232c7aab9 [ 429.973844][ T27] RSP: 002b:00007ffdc33b22e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 429.982297][ T27] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4232c7aab9 [ 429.990339][ T27] RDX: 00007f4232c7aab9 RSI: 00000000ffffffff RDI: 0000000000000003 [ 429.998308][ T27] RBP: 000000000002d2ff R08: 0000000000000006 R09: 0000000000000006 [ 430.006354][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc33b22fc [ 430.014547][ T27] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 430.022594][ T27] [ 430.025697][ T27] [ 430.025697][ T27] Showing all locks held in the system: [ 430.033502][ T27] 1 lock held by khungtaskd/27: [ 430.038470][ T27] #0: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 430.047935][ T27] 1 lock held by klogd/3535: [ 430.052567][ T27] #0: ffff8880b8f3a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 [ 430.062557][ T27] 2 locks held by getty/3923: [ 430.067241][ T27] #0: ffff88802c9dc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 430.077049][ T27] #1: ffffc900025c62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 430.087232][ T27] [ 430.089587][ T27] ============================================= [ 430.089587][ T27] [ 430.098009][ T27] NMI backtrace for cpu 0 [ 430.102337][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.179-syzkaller #0 [ 430.110307][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 430.120357][ T27] Call Trace: [ 430.123627][ T27] [ 430.126561][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 430.131234][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 430.136872][ T27] ? panic+0x860/0x860 [ 430.140951][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 430.146062][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 430.150994][ T27] ? __wake_up_klogd+0xd5/0x100 [ 430.155866][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 430.162011][ T27] ? _printk+0xd1/0x120 [ 430.166156][ T27] ? panic+0x860/0x860 [ 430.170215][ T27] ? __wake_up_klogd+0xcc/0x100 [ 430.175056][ T27] ? panic+0x860/0x860 [ 430.179115][ T27] ? wq_watchdog_touch+0xeb/0x170 [ 430.184276][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 430.190350][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 430.196334][ T27] watchdog+0xe72/0xeb0 [ 430.200507][ T27] kthread+0x3f6/0x4f0 [ 430.204572][ T27] ? hungtask_pm_notify+0x50/0x50 [ 430.209590][ T27] ? kthread_blkcg+0xd0/0xd0 [ 430.214184][ T27] ret_from_fork+0x1f/0x30 [ 430.218602][ T27] [ 430.221828][ T27] Sending NMI from CPU 0 to CPUs 1: [ 430.227086][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340 [ 430.229285][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 430.243763][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.179-syzkaller #0 [ 430.251746][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 430.261792][ T27] Call Trace: [ 430.265071][ T27] [ 430.267990][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 430.272662][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 430.278398][ T27] ? panic+0x860/0x860 [ 430.282468][ T27] panic+0x318/0x860 [ 430.286351][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 430.292017][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 430.298210][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 430.303538][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 430.309626][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 430.315939][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0 [ 430.322221][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0 [ 430.328381][ T27] watchdog+0xeb0/0xeb0 [ 430.332544][ T27] kthread+0x3f6/0x4f0 [ 430.336734][ T27] ? hungtask_pm_notify+0x50/0x50 [ 430.341783][ T27] ? kthread_blkcg+0xd0/0xd0 [ 430.346372][ T27] ret_from_fork+0x1f/0x30 [ 430.350818][ T27] [ 430.354148][ T27] Kernel Offset: disabled [ 430.358485][ T27] Rebooting in 86400 seconds..