Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts.
executing program
[ 286.148592][ T27] INFO: task syz-executor268:4194 blocked for more than 143 seconds.
[ 286.156789][ T27] Not tainted 5.15.184-syzkaller #0
[ 286.162694][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 286.171428][ T27] task:syz-executor268 state:D stack:27824 pid: 4194 ppid: 4190 flags:0x00004006
[ 286.181427][ T27] Call Trace:
[ 286.184840][ T27]
[ 286.187843][ T27] __schedule+0x11b8/0x43b0
[ 286.192409][ T27] ? release_firmware_map_entry+0x190/0x190
[ 286.198343][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 286.204347][ T27] ? lock_chain_count+0x20/0x20
[ 286.209257][ T27] ? _raw_spin_lock_irq+0xab/0xe0
[ 286.214394][ T27] ? _raw_spin_lock_irqsave+0xf0/0xf0
[ 286.219810][ T27] schedule+0x11b/0x1e0
[ 286.224027][ T27] schedule_preempt_disabled+0xf/0x20
[ 286.229457][ T27] rwsem_down_read_slowpath+0x528/0x990
[ 286.235112][ T27] ? down_write_killable_nested+0x90/0x90
[ 286.240878][ T27] ? read_lock_is_recursive+0x10/0x10
[ 286.246273][ T27] ? __rwlock_init+0x140/0x140
[ 286.251091][ T27] ? ksys_sync+0x150/0x150
[ 286.255526][ T27] down_read+0x96/0x2e0
[ 286.259741][ T27] ? ksys_sync+0x150/0x150
[ 286.264171][ T27] iterate_supers+0xa4/0x1d0
[ 286.268815][ T27] ksys_sync+0x91/0x150
[ 286.272987][ T27] ? sync_filesystem+0x220/0x220
[ 286.277965][ T27] ? syscall_enter_from_user_mode+0x21/0x70
[ 286.283883][ T27] ? lockdep_hardirqs_on+0x94/0x140
[ 286.289128][ T27] __ia32_sys_sync+0xa/0x10
[ 286.293675][ T27] do_syscall_64+0x4c/0xa0
[ 286.298127][ T27] ? clear_bhb_loop+0x30/0x80
[ 286.302834][ T27] ? clear_bhb_loop+0x30/0x80
[ 286.307551][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 286.313581][ T27] RIP: 0033:0x7fbb60d4b7a9
[ 286.318035][ T27] RSP: 002b:00007fbb60ceb218 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
[ 286.326463][ T27] RAX: ffffffffffffffda RBX: 00007fbb60dd53f8 RCX: 00007fbb60d4b7a9
[ 286.334483][ T27] RDX: 00007fbb60d27e46 RSI: 0000000000000000 RDI: 00007fbb60cebfb0
[ 286.342495][ T27] RBP: 00007fbb60dd53f0 R08: 00007ffc0a754aa7 R09: 0000000000000000
[ 286.350504][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbb60da207c
[ 286.358514][ T27] R13: 0030656c69662f2e R14: 0000200000000040 R15: 00007ffc0a754aa8
[ 286.366495][ T27]
[ 286.369577][ T27]
[ 286.369577][ T27] Showing all locks held in the system:
[ 286.377350][ T27] 1 lock held by khungtaskd/27:
[ 286.382289][ T27] #0: ffffffff8c11c060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 286.391792][ T27] 2 locks held by getty/3937:
[ 286.396479][ T27] #0: ffff88802b9dd098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 286.406274][ T27] #1: ffffc900026362e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30
[ 286.416424][ T27] 1 lock held by syz-executor268/4192:
[ 286.421905][ T27] #0: ffff88801a1d00e0 (&type->s_umount_key#42/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950
[ 286.432074][ T27] 1 lock held by syz-executor268/4194:
[ 286.437553][ T27] #0: ffff88801a1d00e0 (&type->s_umount_key#65){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0
[ 286.447734][ T27]
[ 286.450051][ T27] =============================================
[ 286.450051][ T27]
[ 286.458481][ T27] NMI backtrace for cpu 1
[ 286.462835][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.184-syzkaller #0
[ 286.470800][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 286.480845][ T27] Call Trace:
[ 286.484117][ T27]
[ 286.487036][ T27] dump_stack_lvl+0x168/0x230
[ 286.491707][ T27] ? show_regs_print_info+0x20/0x20
[ 286.496895][ T27] ? load_image+0x3b0/0x3b0
[ 286.501391][ T27] ? nmi_cpu_backtrace+0x1b6/0x3d0
[ 286.506497][ T27] nmi_cpu_backtrace+0x397/0x3d0
[ 286.511425][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 286.517567][ T27] ? _printk+0xcc/0x110
[ 286.521719][ T27] ? load_image+0x3b0/0x3b0
[ 286.526218][ T27] ? load_image+0x3b0/0x3b0
[ 286.530709][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 286.536768][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 286.542742][ T27] watchdog+0xe0f/0xe50
[ 286.546896][ T27] kthread+0x436/0x520
[ 286.550956][ T27] ? hungtask_pm_notify+0x40/0x40
[ 286.555972][ T27] ? kthread_blkcg+0xd0/0xd0
[ 286.560557][ T27] ret_from_fork+0x1f/0x30
[ 286.564975][ T27]
[ 286.568090][ T27] Sending NMI from CPU 1 to CPUs 0:
[ 286.573331][ C0] NMI backtrace for cpu 0 skipped: idling at default_idle+0xb/0x10
[ 286.574380][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 286.588221][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.184-syzkaller #0
[ 286.596192][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 286.606236][ T27] Call Trace:
[ 286.609515][ T27]
[ 286.612441][ T27] dump_stack_lvl+0x168/0x230
[ 286.617113][ T27] ? show_regs_print_info+0x20/0x20
[ 286.622300][ T27] ? load_image+0x3b0/0x3b0
[ 286.626799][ T27] panic+0x2c9/0x7f0
[ 286.630684][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 286.636308][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 286.640805][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280
[ 286.646958][ T27] watchdog+0xe4e/0xe50
[ 286.651110][ T27] kthread+0x436/0x520
[ 286.655168][ T27] ? hungtask_pm_notify+0x40/0x40
[ 286.660180][ T27] ? kthread_blkcg+0xd0/0xd0
[ 286.664766][ T27] ret_from_fork+0x1f/0x30
[ 286.669182][ T27]
[ 286.672421][ T27] Kernel Offset: disabled
[ 286.676776][ T27] Rebooting in 86400 seconds..