Warning: Permanently added '10.128.0.176' (ED25519) to the list of known hosts. executing program [ 122.451084][ T4273] loop0: detected capacity change from 0 to 8 [ 122.500838][ T4273] SQUASHFS error: Failed to read block 0x106: -5 [ 127.449787][ T26] audit: type=1800 audit(1750549330.270:2): pid=4273 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed comm="syz-executor194" name="file2" dev="loop0" ino=6 res=0 errno=0 [ 286.089111][ T27] INFO: task syz-executor194:4272 blocked for more than 143 seconds. [ 286.097267][ T27] Not tainted 6.1.141-syzkaller #0 [ 286.102961][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.111739][ T27] task:syz-executor194 state:D stack:24352 pid:4272 ppid:4271 flags:0x00004002 [ 286.121120][ T27] Call Trace: [ 286.124481][ T27] [ 286.127395][ T27] __schedule+0x10e9/0x40d0 [ 286.131971][ T27] ? release_firmware_map_entry+0x18a/0x18a [ 286.137910][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 286.143972][ T27] ? lock_chain_count+0x20/0x20 [ 286.148877][ T27] ? _raw_spin_lock_irq+0xab/0xe0 [ 286.153912][ T27] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 286.159316][ T27] schedule+0xb9/0x180 [ 286.163475][ T27] io_schedule+0x7c/0xd0 [ 286.167760][ T27] folio_wait_bit_common+0x6e1/0xf60 [ 286.173054][ T27] ? folio_wait_bit+0x30/0x30 [ 286.177754][ T27] ? migration_entry_wait_on_locked+0xe50/0xe50 [ 286.184009][ T27] ? folio_mapping+0x1ba/0x4d0 [ 286.188814][ T27] truncate_inode_pages_range+0x9a2/0xff0 [ 286.194549][ T27] ? mapping_evict_folio+0x520/0x520 [ 286.199868][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 286.205979][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.211267][ T27] ? lockdep_hardirqs_on+0x94/0x140 [ 286.216466][ T27] evict+0x498/0x870 [ 286.220393][ T27] ? proc_nr_inodes+0x2f0/0x2f0 [ 286.225244][ T27] ? do_raw_spin_unlock+0x11d/0x230 [ 286.230701][ T27] ? _raw_spin_unlock+0x24/0x40 [ 286.235590][ T27] ? do_raw_spin_unlock+0x11d/0x230 [ 286.240868][ T27] evict_inodes+0x604/0x690 [ 286.245388][ T27] ? clear_inode+0x150/0x150 [ 286.250032][ T27] ? dput+0x1c9/0x1d0 [ 286.254019][ T27] ? sync_filesystem+0x103/0x220 [ 286.258980][ T27] generic_shutdown_super+0x93/0x340 [ 286.264270][ T27] kill_block_super+0x7c/0xe0 [ 286.269188][ T27] deactivate_locked_super+0x93/0xf0 [ 286.274501][ T27] cleanup_mnt+0x463/0x4f0 [ 286.279000][ T27] ? lockdep_hardirqs_on+0x94/0x140 [ 286.284201][ T27] task_work_run+0x1ca/0x250 [ 286.288846][ T27] ? task_work_cancel+0x230/0x230 [ 286.293908][ T27] ? exit_to_user_mode_loop+0x3b/0x110 [ 286.299401][ T27] exit_to_user_mode_loop+0xe6/0x110 [ 286.304695][ T27] exit_to_user_mode_prepare+0xb1/0x140 [ 286.310294][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 286.315752][ T27] do_syscall_64+0x58/0xa0 [ 286.320188][ T27] ? clear_bhb_loop+0x60/0xb0 [ 286.324863][ T27] ? clear_bhb_loop+0x60/0xb0 [ 286.329599][ T27] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 286.335499][ T27] RIP: 0033:0x7eff594b1447 [ 286.339935][ T27] RSP: 002b:00007fff75898328 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 286.348496][ T27] RAX: 0000000000000000 RBX: 0000000000000063 RCX: 00007eff594b1447 [ 286.356448][ T27] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff758983e0 [ 286.364485][ T27] RBP: 00007fff758983e0 R08: 0000000000000000 R09: 0000000000000000 [ 286.372652][ T27] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff75899450 [ 286.380973][ T27] R13: 0000555572e276c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 286.388999][ T27] [ 286.392007][ T27] [ 286.392007][ T27] Showing all locks held in the system: [ 286.399779][ T27] 1 lock held by rcu_tasks_kthre/12: [ 286.405082][ T27] #0: ffffffff8c92b430 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 [ 286.415834][ T27] 1 lock held by rcu_tasks_trace/13: [ 286.421160][ T27] #0: ffffffff8c92bc50 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 [ 286.432136][ T27] 1 lock held by khungtaskd/27: [ 286.436982][ T27] #0: ffffffff8c92aaa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 [ 286.446893][ T27] 2 locks held by getty/4014: [ 286.451605][ T27] #0: ffff888030023098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 286.461361][ T27] #1: ffffc9000326b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380 [ 286.471484][ T27] 1 lock held by syz-executor194/4272: [ 286.476941][ T27] #0: ffff88801eb620e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xa0/0xd0 [ 286.487362][ T27] [ 286.489750][ T27] ============================================= [ 286.489750][ T27] [ 286.498191][ T27] NMI backtrace for cpu 0 [ 286.502498][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.141-syzkaller #0 [ 286.510366][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 286.520400][ T27] Call Trace: [ 286.523677][ T27] [ 286.526593][ T27] dump_stack_lvl+0x168/0x22e [ 286.531273][ T27] ? irq_work_queue+0xb8/0x140 [ 286.536016][ T27] ? show_regs_print_info+0x12/0x12 [ 286.541278][ T27] ? load_image+0x3b0/0x3b0 [ 286.545769][ T27] ? vprintk_emit+0x571/0x680 [ 286.550430][ T27] ? printk_sprint+0x460/0x460 [ 286.555182][ T27] nmi_cpu_backtrace+0x3f4/0x470 [ 286.560104][ T27] ? nmi_trigger_cpumask_backtrace+0x450/0x450 [ 286.566232][ T27] ? _printk+0xcc/0x110 [ 286.570368][ T27] ? load_image+0x3b0/0x3b0 [ 286.574849][ T27] ? load_image+0x3b0/0x3b0 [ 286.579329][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.585386][ T27] nmi_trigger_cpumask_backtrace+0x1d4/0x450 [ 286.591364][ T27] watchdog+0xeee/0xf30 [ 286.595506][ T27] ? watchdog+0x1ed/0xf30 [ 286.599812][ T27] kthread+0x29d/0x330 [ 286.603876][ T27] ? hungtask_pm_notify+0x40/0x40 [ 286.608900][ T27] ? kthread_blkcg+0xd0/0xd0 [ 286.613472][ T27] ret_from_fork+0x1f/0x30 [ 286.617872][ T27] [ 286.620974][ T27] Sending NMI from CPU 0 to CPUs 1: [ 286.626214][ C1] NMI backtrace for cpu 1 [ 286.626225][ C1] CPU: 1 PID: 75 Comm: kworker/u4:4 Not tainted 6.1.141-syzkaller #0 [ 286.626241][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 286.626249][ C1] Workqueue: events_unbound toggle_allocation_gate [ 286.626271][ C1] RIP: 0010:trace_hardirqs_off+0xe/0x40 [ 286.626291][ C1] Code: 80 c1 03 38 c1 0f 8c 6a ff ff ff 48 c7 c7 b0 87 fe 8d e8 d5 19 4b 00 e9 59 ff ff ff 53 48 8b 5c 24 08 48 89 df e8 22 5d 88 08 <65> 8b 05 d3 00 7c 7e 85 c0 75 19 65 c7 05 c4 00 7c 7e 01 00 00 00 [ 286.626303][ C1] RSP: 0018:ffffc90001577850 EFLAGS: 00000082 [ 286.626315][ C1] RAX: eb09082e98d32f00 RBX: ffffffff812e21ff RCX: eb09082e98d32f00 [ 286.626326][ C1] RDX: 0000000000000001 RSI: ffffffff8a6bffe0 RDI: ffffffff8abf1360 [ 286.626336][ C1] RBP: ffffc90001577990 R08: ffff888017467558 R09: 0000000000000003 [ 286.626346][ C1] R10: fffff520002aeef4 R11: 1ffff920002aeef4 R12: 0000000000000000 [ 286.626355][ C1] R13: ffffffffffffffff R14: ffffea00000745c0 R15: ffffffff81d17ae5 [ 286.626366][ C1] FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 286.626378][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.626388][ C1] CR2: 000055d16d80a168 CR3: 000000000c68e000 CR4: 00000000003506e0 [ 286.626403][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 286.626411][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 286.626420][ C1] Call Trace: [ 286.626425][ C1] [ 286.626431][ C1] __text_poke+0x27f/0x810 [ 286.626450][ C1] ? __text_poke+0x810/0x810 [ 286.626466][ C1] ? kmem_cache_alloc_lru+0x55/0x2e0 [ 286.626481][ C1] ? text_poke+0x90/0x90 [ 286.626496][ C1] ? trace_raw_output_contention_end+0xd0/0xd0 [ 286.626512][ C1] ? text_poke_loc_init+0xd6/0x570 [ 286.626533][ C1] text_poke_bp_batch+0x597/0x7d0 [ 286.626552][ C1] ? kmem_cache_alloc_bulk+0x11b/0x4e0 [ 286.626566][ C1] ? text_poke_loc_init+0x570/0x570 [ 286.626583][ C1] ? arch_jump_label_transform_queue+0x76/0xd0 [ 286.626600][ C1] text_poke_finish+0x16/0x30 [ 286.626615][ C1] arch_jump_label_transform_apply+0x13/0x20 [ 286.626629][ C1] static_key_enable_cpuslocked+0x11f/0x240 [ 286.626655][ C1] static_key_enable+0x16/0x20 [ 286.626669][ C1] toggle_allocation_gate+0xb4/0x430 [ 286.626685][ C1] ? show_object+0xa0/0xa0 [ 286.626700][ C1] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 286.626718][ C1] ? read_lock_is_recursive+0x10/0x10 [ 286.626734][ C1] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 286.626753][ C1] ? _raw_spin_unlock+0x40/0x40 [ 286.626771][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.626790][ C1] ? process_one_work+0x7a1/0x1160 [ 286.626804][ C1] process_one_work+0x898/0x1160 [ 286.626824][ C1] ? worker_detach_from_pool+0x240/0x240 [ 286.626841][ C1] ? _raw_spin_lock_irq+0xab/0xe0 [ 286.626858][ C1] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 286.626876][ C1] ? kthread_data+0x4b/0xc0 [ 286.626895][ C1] worker_thread+0xaa2/0x1250 [ 286.626917][ C1] ? __kthread_parkme+0x162/0x1c0 [ 286.626937][ C1] kthread+0x29d/0x330 [ 286.626955][ C1] ? worker_clr_flags+0x1a0/0x1a0 [ 286.626968][ C1] ? kthread_blkcg+0xd0/0xd0 [ 286.626986][ C1] ret_from_fork+0x1f/0x30 [ 286.627010][ C1] [ 286.627260][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 286.951060][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.141-syzkaller #0 [ 286.958956][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 286.969104][ T27] Call Trace: [ 286.972396][ T27] [ 286.975332][ T27] dump_stack_lvl+0x168/0x22e [ 286.980028][ T27] ? memcpy+0x3c/0x60 [ 286.984027][ T27] ? show_regs_print_info+0x12/0x12 [ 286.989242][ T27] ? load_image+0x3b0/0x3b0 [ 286.993757][ T27] panic+0x2c9/0x710 [ 286.997656][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 287.003300][ T27] ? bpf_jit_dump+0xd0/0xd0 [ 287.007816][ T27] ? nmi_trigger_cpumask_backtrace+0x35b/0x450 [ 287.013978][ T27] ? nmi_trigger_cpumask_backtrace+0x360/0x450 [ 287.020148][ T27] watchdog+0xf2d/0xf30 [ 287.024312][ T27] ? watchdog+0x1ed/0xf30 [ 287.028653][ T27] kthread+0x29d/0x330 [ 287.032749][ T27] ? hungtask_pm_notify+0x40/0x40 [ 287.037781][ T27] ? kthread_blkcg+0xd0/0xd0 [ 287.042388][ T27] ret_from_fork+0x1f/0x30 [ 287.046823][ T27] [ 287.050111][ T27] Kernel Offset: disabled [ 287.054441][ T27] Rebooting in 86400 seconds..