Warning: Permanently added '10.128.10.36' (ED25519) to the list of known hosts. executing program the reproducer may not work as expected: 802154 injection setup failed: netlink_query_family_id failed [ 464.449010][ T27] INFO: task syz.3.26:7304 blocked for more than 143 seconds. [ 464.456683][ T27] Not tainted 6.1.138-syzkaller #0 [ 464.517320][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 464.590029][ T27] task:syz.3.26 state:D stack:13536 pid:7304 ppid:6884 flags:0x00004004 [ 464.667983][ T27] Call Trace: [ 464.695335][ T27] [ 464.698299][ T27] __schedule+0x589/0x10a0 [ 464.756537][ T27] schedule+0x50/0xb0 [ 464.789930][ T27] schedule_preempt_disabled+0x2e/0x40 [ 464.795512][ T27] rwsem_down_read_slowpath+0x24c/0x4f0 [ 464.882545][ T27] down_read+0x82/0xf0 [ 464.887001][ T27] user_get_super+0x87/0xd0 [ 464.957960][ T27] __se_sys_quotactl+0x22a/0x330 [ 464.998090][ T27] ? rcu_is_watching+0xc/0x40 [ 465.037279][ T27] ? fpregs_restore_userregs+0x77/0xd0 [ 465.083801][ T27] do_syscall_64+0x4c/0xa0 [ 465.088248][ T27] ? clear_bhb_loop+0x45/0xa0 [ 465.159095][ T27] ? clear_bhb_loop+0x45/0xa0 [ 465.163811][ T27] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 465.248158][ T27] RIP: 0033:0x7fa976b85d29 [ 465.284932][ T27] RSP: 002b:00007fa97793b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 [ 465.354800][ T27] RAX: ffffffffffffffda RBX: 00007fa976d75fa0 RCX: 00007fa976b85d29 [ 465.421778][ T27] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: ffffffff80000801 [ 465.488021][ T27] RBP: 00007fa976c01b08 R08: 0000000000000000 R09: 0000000000000000 [ 465.555657][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 465.622478][ T27] R13: 0000000000000000 R14: 00007fa976d75fa0 R15: 00007ffdb51c6098 [ 465.687462][ T27] [ 465.712939][ T27] [ 465.712939][ T27] Showing all locks held in the system: [ 465.778498][ T27] 1 lock held by rcu_tasks_kthre/12: [ 465.823084][ T27] #0: ffffffff83571e68 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x97/0x4c0 [ 465.909425][ T27] 1 lock held by khungtaskd/27: [ 465.914307][ T27] #0: ffffffff83571c28 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2a/0xf0 [ 466.031674][ T27] 2 locks held by getty/1152: [ 466.036391][ T27] #0: ffff888142e65098 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x1c/0x40 [ 466.154877][ T27] #1: ffffc90000bfb2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x19e/0x6d0 [ 466.238781][ T27] 4 locks held by syz.3.16/3074: [ 466.281203][ T27] 4 locks held by syz.4.17/3497: [ 466.286177][ T27] 4 locks held by syz.5.18/3920: [ 466.365323][ T27] 4 locks held by syz.6.19/4342: [ 466.406599][ T27] 5 locks held by syz.7.20/4766: [ 466.447749][ T27] 5 locks held by syz.8.21/5189: [ 466.488872][ T27] 4 locks held by syz.9.22/5611: [ 466.493919][ T27] 4 locks held by syz.0.23/6034: [ 466.571861][ T27] 4 locks held by syz.1.24/6457: [ 466.576831][ T27] 4 locks held by syz.2.25/6881: [ 466.653137][ T27] 1 lock held by syz.3.26/7304: [ 466.658016][ T27] #0: ffff888103a860e0 (&type->s_umount_key#44){....}-{3:3}, at: user_get_super+0x87/0xd0 [ 466.776063][ T27] 1 lock held by syz.4.27/7726: [ 466.821251][ T27] #0: ffff8881027fe0e0 (&type->s_umount_key#44){....}-{3:3}, at: user_get_super+0x87/0xd0 [ 466.903252][ T27] 1 lock held by syz.5.28/8148: [ 466.908123][ T27] #0: ffff888117c140e0 (&type->s_umount_key#44){....}-{3:3}, at: user_get_super+0x87/0xd0 [ 467.026659][ T27] 1 lock held by syz.6.29/8570: [ 467.065435][ T27] #0: ffff888146a610e0 (&type->s_umount_key#44){....}-{3:3}, at: user_get_super+0x87/0xd0 [ 467.151470][ T27] 1 lock held by syz-executor166/8582: [ 467.157081][ T27] #0: ffff8881087da0e0 (&type->s_umount_key#44){....}-{3:3}, at: user_get_super+0x87/0xd0 [ 467.279476][ T27] 1 lock held by syz.7.30/9004: [ 467.284355][ T27] #0: ffff8881180410e0 (&type->s_umount_key#44){....}-{3:3}, at: user_get_super+0x87/0xd0 [ 467.401412][ T27] [ 467.403776][ T27] ============================================= [ 467.403776][ T27] [ 467.491389][ T27] NMI backtrace for cpu 1 [ 467.495843][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.138-syzkaller #0 [ 467.503718][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 467.513936][ T27] Call Trace: [ 467.517210][ T27] [ 467.520125][ T27] dump_stack_lvl+0x74/0xbb [ 467.524619][ T27] nmi_cpu_backtrace+0x102/0x160 [ 467.529549][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 467.535603][ T27] nmi_trigger_cpumask_backtrace+0xa5/0x160 [ 467.541571][ T27] watchdog+0x533/0x560 [ 467.545707][ T27] ? watchdog+0xd2/0x560 [ 467.549937][ T27] ? hungtask_pm_notify+0x20/0x20 [ 467.555023][ T27] kthread+0xcc/0xe0 [ 467.558896][ T27] ? kthread_blkcg+0x30/0x30 [ 467.563463][ T27] ret_from_fork+0x1f/0x30 [ 467.567955][ T27] [ 467.571034][ T27] Sending NMI from CPU 1 to CPUs 0: [ 467.576264][ C0] NMI backtrace for cpu 0 [ 467.576268][ C0] CPU: 0 PID: 47 Comm: kworker/u4:3 Not tainted 6.1.138-syzkaller #0 [ 467.576272][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 467.576274][ C0] Workqueue: events_unbound toggle_allocation_gate [ 467.576281][ C0] RIP: 0010:__mutex_lock+0x42/0x9b0 [ 467.576287][ C0] Code: f5 48 89 fb 65 48 8b 04 25 28 00 00 00 48 89 44 24 58 2e 2e 2e 31 c0 83 3d da 0b a8 05 00 75 0a 48 39 5b 60 0f 85 01 02 00 00 <48> c7 44 24 50 00 00 00 00 48 c7 44 24 48 00 00 00 00 48 c7 44 24 [ 467.576291][ C0] RSP: 0018:ffffc900001fbd68 EFLAGS: 00000246 [ 467.576293][ C0] RAX: 0000000000000000 RBX: ffffffff8358b068 RCX: 0000000000000000 [ 467.576296][ C0] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffffff8358b068 [ 467.576298][ C0] RBP: 0000000000000002 R08: ffffffff811cbe23 R09: 0000000000000002 [ 467.576300][ C0] R10: 0000000000000000 R11: 8080808080808080 R12: 0000000000000000 [ 467.576302][ C0] R13: 0000000000000000 R14: ffffffff811cbe23 R15: ffff888100068c00 [ 467.576304][ C0] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 467.576307][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 467.576309][ C0] CR2: 00007fbae3612e80 CR3: 0000000003421000 CR4: 00000000003506f0 [ 467.576316][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 467.576318][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 467.576320][ C0] Call Trace: [ 467.576322][ C0] [ 467.576325][ C0] ? process_one_work+0x223/0x4c0 [ 467.576330][ C0] static_key_disable+0x23/0x60 [ 467.576336][ C0] toggle_allocation_gate+0x1df/0x230 [ 467.576340][ C0] process_one_work+0x27d/0x4c0 [ 467.576344][ C0] worker_thread+0x236/0x3a0 [ 467.576347][ C0] ? process_one_work+0x4c0/0x4c0 [ 467.576350][ C0] kthread+0xcc/0xe0 [ 467.576355][ C0] ? kthread_blkcg+0x30/0x30 [ 467.576359][ C0] ret_from_fork+0x1f/0x30 [ 467.576364][ C0] [ 468.228241][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 468.235397][ T27] Kernel Offset: disabled [ 468.239798][ T27] Rebooting in 86400 seconds..