/0x320 [ 79.396134][ T64] ? submit_bio+0x367/0x620 [ 79.400626][ T64] ? submit_bio_noacct+0x800/0x800 [ 79.405829][ T64] bio_alloc_bioset+0x124/0x910 [ 79.410674][ T64] submit_bh_wbc+0x1c2/0x680 [ 79.415257][ T64] submit_bh+0x2a/0x40 [ 79.419340][ T64] jbd2_journal_commit_transaction+0x2461/0x5650 [ 79.425701][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 79.432473][ T64] ? __switch_to+0x56c/0x1070 [ 79.437144][ T64] ? compat_start_thread+0x20/0x20 [ 79.442248][ T64] ? _raw_spin_unlock+0x4d/0x70 [ 79.447089][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 79.451764][ T64] ? __kasan_check_write+0x14/0x20 [ 79.456865][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 79.462315][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 79.467076][ T64] ? detach_if_pending+0xf5/0x300 [ 79.472100][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 79.477900][ T64] ? del_timer_sync+0x144/0x1a0 [ 79.482739][ T64] kjournald2+0x43d/0x860 [ 79.487057][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 79.492244][ T64] ? io_schedule+0xe0/0xe0 [ 79.496650][ T64] ? __kasan_check_read+0x11/0x20 [ 79.501666][ T64] ? __kthread_parkme+0xab/0x1f0 [ 79.506596][ T64] kthread+0x3f5/0x4f0 [ 79.510651][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 79.515836][ T64] ? kthread_blkcg+0xd0/0xd0 [ 79.520425][ T64] ret_from_fork+0x1f/0x30 [ 79.524831][ T64] [ 79.527839][ C0] CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted syzkaller #0 [ 79.535126][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 79.545201][ C0] Workqueue: mld mld_dad_work [ 79.549875][ C0] Call Trace: [ 79.553142][ C0] [ 79.555972][ C0] __dump_stack+0x21/0x30 [ 79.560289][ C0] dump_stack_lvl+0x110/0x170 [ 79.564978][ C0] ? show_regs_print_info+0x20/0x20 [ 79.570163][ C0] ? prandom_u32+0x24d/0x290 [ 79.571342][ T140] FAULT_INJECTION: forcing a failure. [ 79.571342][ T140] name failslab, interval 1, probability 10, space 0, times 65 [ 79.574740][ C0] dump_stack+0x15/0x20 [ 79.591611][ C0] should_fail+0x3ab/0x500 [ 79.596020][ C0] __should_failslab+0xa4/0xe0 [ 79.600783][ C0] should_failslab+0x9/0x20 [ 79.605278][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 79.610206][ C0] kmem_cache_alloc_trace+0x48/0x270 [ 79.615481][ C0] ? dst_cow_metrics_generic+0x55/0x1c0 [ 79.621015][ C0] dst_cow_metrics_generic+0x55/0x1c0 [ 79.626372][ C0] icmp6_dst_alloc+0x35f/0x520 [ 79.631130][ C0] ndisc_send_skb+0x2a9/0xcf0 [ 79.635793][ C0] ? icmp6_dst_alloc+0x35f/0x520 [ 79.640715][ C0] ? mld_sendpack+0x4d9/0xba0 [ 79.645475][ C0] ? mld_send_initial_cr+0x1c0/0x320 [ 79.650746][ C0] ? mld_dad_work+0x3a/0x4e0 [ 79.655326][ C0] ? process_one_work+0x6c8/0xbb0 [ 79.660340][ C0] ? ndisc_alloc_skb+0x290/0x290 [ 79.665272][ C0] ? ndisc_send_rs+0x61f/0x960 [ 79.670023][ C0] ? memcpy+0x56/0x70 [ 79.671647][ T60] FAULT_INJECTION: forcing a failure. [ 79.671647][ T60] name failslab, interval 1, probability 10, space 0, times 65 [ 79.673996][ C0] ndisc_send_rs+0x711/0x960 [ 79.691302][ C0] addrconf_rs_timer+0x35a/0x600 [ 79.696231][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 79.702287][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 79.708344][ C0] call_timer_fn+0x38/0x290 [ 79.712840][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 79.718895][ C0] __run_timers+0x637/0x9a0 [ 79.723391][ C0] ? calc_index+0x200/0x200 [ 79.727893][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 79.732734][ C0] run_timer_softirq+0x6a/0xf0 [ 79.737486][ C0] handle_softirqs+0x250/0x560 [ 79.742236][ C0] ? irqtime_account_irq+0xbe/0x390 [ 79.747423][ C0] __irq_exit_rcu+0x52/0xf0 [ 79.751918][ C0] irq_exit_rcu+0x9/0x10 [ 79.756160][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 79.761784][ C0] [ 79.764700][ C0] [ 79.767631][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 79.773600][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120 [ 79.779488][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 4d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 4e 95 fc 65 48 8b 1d 13 f7 [ 79.799084][ C0] RSP: 0018:ffffc900001476c0 EFLAGS: 00000246 [ 79.805142][ C0] RAX: 1ffff11020061dae RBX: ffffc90000147798 RCX: ffffffff870cbf00 [ 79.813106][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 79.821067][ C0] RBP: ffffc90000147748 R08: ffff88810030e2c7 R09: 1ffff11020061c58 [ 79.829030][ C0] R10: dffffc0000000000 R11: ffffed1020061c59 R12: 0000000000000000 [ 79.836991][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000028ed8 [ 79.844954][ C0] ? __cond_resched+0xd0/0xd0 [ 79.849622][ C0] irqentry_exit_cond_resched+0x29/0x30 [ 79.855179][ C0] irqentry_exit+0x37/0x40 [ 79.859585][ C0] sysvec_reschedule_ipi+0x78/0x80 [ 79.864684][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20 [ 79.870132][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 79.875582][ C0] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 79.895180][ C0] RSP: 0018:ffffc90000147840 EFLAGS: 00000293 [ 79.901239][ C0] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff88810030e2c0 [ 79.909200][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 79.917156][ C0] RBP: ffffc900001478c8 R08: 0000000000000003 R09: 0000000000000004 [ 79.925115][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 79.933075][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000028f08 [ 79.941036][ C0] ? dump_stack_lvl+0x13b/0x170 [ 79.945879][ C0] ? show_regs_print_info+0x20/0x20 [ 79.951066][ C0] ? prandom_u32+0x24d/0x290 [ 79.955642][ C0] dump_stack+0x15/0x20 [ 79.959788][ C0] should_fail+0x3ab/0x500 [ 79.964192][ C0] __should_failslab+0xa4/0xe0 [ 79.968949][ C0] should_failslab+0x9/0x20 [ 79.973449][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 79.978378][ C0] kmem_cache_alloc_trace+0x48/0x270 [ 79.983654][ C0] ? dst_cow_metrics_generic+0x55/0x1c0 [ 79.989190][ C0] dst_cow_metrics_generic+0x55/0x1c0 [ 79.994575][ C0] icmp6_dst_alloc+0x35f/0x520 [ 79.999332][ C0] mld_sendpack+0x4d9/0xba0 [ 80.003832][ C0] ? add_grec+0x1340/0x1340 [ 80.008321][ C0] ? add_grec+0xf70/0x1340 [ 80.012726][ C0] ? memcpy+0x56/0x70 [ 80.016701][ C0] ? __kasan_check_write+0x14/0x20 [ 80.021801][ C0] mld_send_initial_cr+0x1c0/0x320 [ 80.026900][ C0] mld_dad_work+0x3a/0x4e0 [ 80.031307][ C0] process_one_work+0x6c8/0xbb0 [ 80.036151][ C0] worker_thread+0xaa0/0x1250 [ 80.040823][ C0] ? __kasan_check_read+0x11/0x20 [ 80.045838][ C0] kthread+0x3f5/0x4f0 [ 80.049920][ C0] ? worker_clr_flags+0x190/0x190 [ 80.054939][ C0] ? kthread_blkcg+0xd0/0xd0 [ 80.059518][ C0] ret_from_fork+0x1f/0x30 [ 80.063931][ C0] [ 80.066940][ T60] CPU: 1 PID: 60 Comm: kworker/1:2 Not tainted syzkaller #0 [ 80.067277][ C0] FAULT_INJECTION: forcing a failure. [ 80.067277][ C0] name failslab, interval 1, probability 10, space 0, times 64 [ 80.074308][ T60] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 80.074321][ T60] Workqueue: ipv6_addrconf addrconf_dad_work [ 80.074343][ T60] Call Trace: [ 80.106318][ T60] [ 80.109239][ T60] __dump_stack+0x21/0x30 [ 80.113561][ T60] dump_stack_lvl+0x110/0x170 [ 80.118225][ T60] ? show_regs_print_info+0x20/0x20 [ 80.123411][ T60] dump_stack+0x15/0x20 [ 80.127553][ T60] should_fail+0x3ab/0x500 [ 80.131962][ T60] __should_failslab+0xa4/0xe0 [ 80.136715][ T60] should_failslab+0x9/0x20 [ 80.141207][ T60] slab_pre_alloc_hook+0x39/0xd0 [ 80.146135][ T60] ? __alloc_skb+0xe4/0x730 [ 80.150629][ T60] kmem_cache_alloc+0x44/0x260 [ 80.155383][ T60] __alloc_skb+0xe4/0x730 [ 80.159710][ T60] inet6_rt_notify+0x293/0x480 [ 80.164466][ T60] ? rt6_nh_dump_exceptions+0x6b0/0x6b0 [ 80.170002][ T60] ? call_fib_notifiers+0xa0/0xc0 [ 80.175018][ T60] fib6_add+0x223f/0x3d70 [ 80.179344][ T60] ? fib6_update_sernum_stub+0x190/0x190 [ 80.184965][ T60] ? __kasan_check_write+0x14/0x20 [ 80.190066][ T60] ? _raw_spin_lock_bh+0x94/0xf0 [ 80.194999][ T60] ip6_ins_rt+0xd3/0x130 [ 80.199235][ T60] ? rt6_lookup+0x220/0x220 [ 80.203729][ T60] ? rtnl_notify+0x9a/0xc0 [ 80.208135][ T60] __ipv6_ifa_notify+0x4df/0xe70 [ 80.213084][ T60] ? inet6_fill_ifla6_attrs+0x25b0/0x25b0 [ 80.218796][ T60] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 80.225550][ T60] ? __kasan_check_write+0x14/0x20 [ 80.230650][ T60] ? try_to_grab_pending+0x1a4/0x580 [ 80.235925][ T60] ? debug_smp_processor_id+0x17/0x20 [ 80.241286][ T60] ? mod_delayed_work_on+0xe0/0xe0 [ 80.246411][ T60] ? __kasan_check_write+0x14/0x20 [ 80.251511][ T60] ? __cancel_work+0x198/0x200 [ 80.256266][ T60] addrconf_dad_completed+0x182/0xe20 [ 80.261720][ T60] ? __kasan_check_write+0x14/0x20 [ 80.266829][ T60] ? addrconf_dad_stop+0x440/0x440 [ 80.271939][ T60] addrconf_dad_work+0xc4c/0x1510 [ 80.276959][ T60] ? ipv6_get_saddr_eval+0xf70/0xf70 [ 80.282245][ T60] ? __kasan_check_write+0x14/0x20 [ 80.287349][ T60] ? _raw_spin_lock_irq+0x95/0xf0 [ 80.292366][ T60] ? _raw_spin_lock_irqsave+0x130/0x130 [ 80.297900][ T60] ? neigh_periodic_work+0xa2a/0xaa0 [ 80.303175][ T60] process_one_work+0x6c8/0xbb0 [ 80.308018][ T60] worker_thread+0xaa0/0x1250 [ 80.312696][ T60] ? __kasan_check_read+0x11/0x20 [ 80.317711][ T60] kthread+0x3f5/0x4f0 [ 80.321769][ T60] ? worker_clr_flags+0x190/0x190 [ 80.326801][ T60] ? kthread_blkcg+0xd0/0xd0 [ 80.331381][ T60] ret_from_fork+0x1f/0x30 [ 80.335787][ T60] [ 80.338796][ C0] CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted syzkaller #0 [ 80.341522][ T300] FAULT_INJECTION: forcing a failure. [ 80.341522][ T300] name failslab, interval 1, probability 10, space 0, times 63 [ 80.346082][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 80.368861][ C0] Workqueue: mld mld_dad_work [ 80.373538][ C0] Call Trace: [ 80.376806][ C0] [ 80.379636][ C0] __dump_stack+0x21/0x30 [ 80.383960][ C0] dump_stack_lvl+0x110/0x170 [ 80.388626][ C0] ? show_regs_print_info+0x20/0x20 [ 80.393825][ C0] ? prandom_u32+0x24d/0x290 [ 80.398422][ C0] dump_stack+0x15/0x20 [ 80.402580][ C0] should_fail+0x3ab/0x500 [ 80.406990][ C0] __should_failslab+0xa4/0xe0 [ 80.411762][ C0] should_failslab+0x9/0x20 [ 80.416261][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 80.421192][ C0] ? __alloc_skb+0xe4/0x730 [ 80.425723][ C0] kmem_cache_alloc+0x44/0x260 [ 80.430595][ C0] __alloc_skb+0xe4/0x730 [ 80.434925][ C0] ndisc_send_rs+0x310/0x960 [ 80.439531][ C0] addrconf_rs_timer+0x35a/0x600 [ 80.444462][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 80.450519][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 80.456575][ C0] call_timer_fn+0x38/0x290 [ 80.461111][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 80.467170][ C0] __run_timers+0x637/0x9a0 [ 80.471667][ C0] ? calc_index+0x200/0x200 [ 80.476162][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 80.481004][ C0] run_timer_softirq+0x6a/0xf0 [ 80.485788][ C0] handle_softirqs+0x250/0x560 [ 80.490545][ C0] ? irqtime_account_irq+0xbe/0x390 [ 80.495742][ C0] __irq_exit_rcu+0x52/0xf0 [ 80.500271][ C0] irq_exit_rcu+0x9/0x10 [ 80.504507][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 80.510151][ C0] [ 80.513072][ C0] [ 80.515987][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 80.521961][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120 [ 80.528040][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 4d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 4e 95 fc 65 48 8b 1d 13 f7 [ 80.547641][ C0] RSP: 0018:ffffc900001476c0 EFLAGS: 00000246 [ 80.553705][ C0] RAX: 1ffff11020061dae RBX: ffffc90000147798 RCX: ffffffff870cbf00 [ 80.561670][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 80.569631][ C0] RBP: ffffc90000147748 R08: ffff88810030e2c7 R09: 1ffff11020061c58 [ 80.577594][ C0] R10: dffffc0000000000 R11: ffffed1020061c59 R12: 0000000000000000 [ 80.585559][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000028ed8 [ 80.593526][ C0] ? __cond_resched+0xd0/0xd0 [ 80.598221][ C0] irqentry_exit_cond_resched+0x29/0x30 [ 80.601391][ T10] FAULT_INJECTION: forcing a failure. [ 80.601391][ T10] name failslab, interval 1, probability 10, space 0, times 63 [ 80.603755][ C0] irqentry_exit+0x37/0x40 [ 80.620891][ C0] sysvec_reschedule_ipi+0x78/0x80 [ 80.625996][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20 [ 80.631452][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 80.636901][ C0] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 80.656496][ C0] RSP: 0018:ffffc90000147840 EFLAGS: 00000293 [ 80.662554][ C0] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff88810030e2c0 [ 80.670517][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 80.678476][ C0] RBP: ffffc900001478c8 R08: 0000000000000003 R09: 0000000000000004 [ 80.686437][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 80.694397][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000028f08 [ 80.702358][ C0] ? dump_stack_lvl+0x13b/0x170 [ 80.707210][ C0] ? show_regs_print_info+0x20/0x20 [ 80.712397][ C0] ? prandom_u32+0x24d/0x290 [ 80.716976][ C0] dump_stack+0x15/0x20 [ 80.721116][ C0] should_fail+0x3ab/0x500 [ 80.725521][ C0] __should_failslab+0xa4/0xe0 [ 80.730276][ C0] should_failslab+0x9/0x20 [ 80.734890][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 80.739844][ C0] kmem_cache_alloc_trace+0x48/0x270 [ 80.745131][ C0] ? dst_cow_metrics_generic+0x55/0x1c0 [ 80.750739][ C0] dst_cow_metrics_generic+0x55/0x1c0 [ 80.756105][ C0] icmp6_dst_alloc+0x35f/0x520 [ 80.760862][ C0] mld_sendpack+0x4d9/0xba0 [ 80.765355][ C0] ? add_grec+0x1340/0x1340 [ 80.769848][ C0] ? add_grec+0xf70/0x1340 [ 80.774337][ C0] ? memcpy+0x56/0x70 [ 80.778315][ C0] ? __kasan_check_write+0x14/0x20 [ 80.783618][ C0] mld_send_initial_cr+0x1c0/0x320 [ 80.788727][ C0] mld_dad_work+0x3a/0x4e0 [ 80.793135][ C0] process_one_work+0x6c8/0xbb0 [ 80.797993][ C0] worker_thread+0xaa0/0x1250 [ 80.802689][ C0] ? __kasan_check_read+0x11/0x20 [ 80.807721][ C0] kthread+0x3f5/0x4f0 [ 80.811786][ C0] ? worker_clr_flags+0x190/0x190 [ 80.816812][ C0] ? kthread_blkcg+0xd0/0xd0 [ 80.821403][ C0] ret_from_fork+0x1f/0x30 [ 80.825810][ C0] [ 80.828824][ T140] CPU: 1 PID: 140 Comm: dhcpcd Not tainted syzkaller #0 [ 80.828892][ C0] FAULT_INJECTION: forcing a failure. [ 80.828892][ C0] name failslab, interval 1, probability 10, space 0, times 62 [ 80.835764][ T140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 80.835775][ T140] Call Trace: [ 80.835780][ T140] [ 80.835787][ T140] __dump_stack+0x21/0x30 [ 80.869068][ T140] dump_stack_lvl+0x110/0x170 [ 80.873743][ T140] ? show_regs_print_info+0x20/0x20 [ 80.878933][ T140] ? prandom_u32+0x24d/0x290 [ 80.883513][ T140] dump_stack+0x15/0x20 [ 80.887657][ T140] should_fail+0x3ab/0x500 [ 80.892062][ T140] __should_failslab+0xa4/0xe0 [ 80.896823][ T140] should_failslab+0x9/0x20 [ 80.901318][ T140] slab_pre_alloc_hook+0x39/0xd0 [ 80.906283][ T140] ? __alloc_skb+0xe4/0x730 [ 80.910781][ T140] kmem_cache_alloc+0x44/0x260 [ 80.915538][ T140] __alloc_skb+0xe4/0x730 [ 80.919886][ T140] alloc_skb_with_frags+0xa8/0x620 [ 80.924990][ T140] ? memcpy+0x56/0x70 [ 80.928974][ T140] sock_alloc_send_pskb+0x87f/0x9a0 [ 80.934167][ T140] ? sock_kzfree_s+0x60/0x60 [ 80.938750][ T140] ? __kasan_check_write+0x14/0x20 [ 80.943851][ T140] ? _raw_spin_lock+0x94/0xf0 [ 80.948548][ T140] ? _raw_spin_trylock_bh+0x150/0x150 [ 80.953914][ T140] unix_dgram_sendmsg+0x6f3/0x19b0 [ 80.959045][ T140] ? selinux_socket_unix_may_send+0x1e6/0x2c0 [ 80.965110][ T140] ? selinux_socket_unix_stream_connect+0x430/0x430 [ 80.971716][ T140] ? unix_dgram_poll+0x6c0/0x6c0 [ 80.976665][ T140] ? path_put+0x57/0x60 [ 80.980815][ T140] ? security_socket_sendmsg+0x82/0xa0 [ 80.986365][ T140] __sys_sendto+0x46d/0x620 [ 80.990867][ T140] ? __ia32_sys_getpeername+0x90/0x90 [ 80.996231][ T140] __x64_sys_sendto+0xe5/0x100 [ 81.000982][ T140] x64_sys_call+0x178/0x9a0 [ 81.005477][ T140] do_syscall_64+0x4c/0xa0 [ 81.009882][ T140] ? clear_bhb_loop+0x50/0xa0 [ 81.014548][ T140] ? clear_bhb_loop+0x50/0xa0 [ 81.019214][ T140] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.025111][ T140] RIP: 0033:0x7fbcbf742407 [ 81.029517][ T140] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 81.049111][ T140] RSP: 002b:00007ffec1307c20 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 81.057516][ T140] RAX: ffffffffffffffda RBX: 00007fbcbf6b8740 RCX: 00007fbcbf742407 [ 81.065478][ T140] RDX: 000000000000004c RSI: 00007ffec1307d60 RDI: 0000000000000003 [ 81.073441][ T140] RBP: 00007ffec1308190 R08: 0000000000000000 R09: 0000000000000000 [ 81.081403][ T140] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffec13085e0 [ 81.089379][ T140] R13: 00007ffec1307d60 R14: 000000000000002b R15: 00007ffec1307d60 [ 81.097350][ T140] [ 81.100361][ C0] CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted syzkaller #0 [ 81.107668][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 81.117717][ C0] Workqueue: mld mld_dad_work [ 81.122392][ C0] Call Trace: [ 81.125664][ C0] [ 81.128500][ C0] __dump_stack+0x21/0x30 [ 81.132825][ C0] dump_stack_lvl+0x110/0x170 [ 81.137609][ C0] ? show_regs_print_info+0x20/0x20 [ 81.142819][ C0] ? prandom_u32+0x24d/0x290 [ 81.147405][ C0] dump_stack+0x15/0x20 [ 81.151553][ C0] should_fail+0x3ab/0x500 [ 81.155962][ C0] __should_failslab+0xa4/0xe0 [ 81.160724][ C0] should_failslab+0x9/0x20 [ 81.165217][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 81.170175][ C0] kmem_cache_alloc_trace+0x48/0x270 [ 81.175485][ C0] ? dst_cow_metrics_generic+0x55/0x1c0 [ 81.181028][ C0] dst_cow_metrics_generic+0x55/0x1c0 [ 81.186395][ C0] icmp6_dst_alloc+0x35f/0x520 [ 81.191156][ C0] ndisc_send_skb+0x2a9/0xcf0 [ 81.195934][ C0] ? icmp6_dst_alloc+0x35f/0x520 [ 81.200881][ C0] ? mld_sendpack+0x4d9/0xba0 [ 81.205551][ C0] ? mld_send_initial_cr+0x1c0/0x320 [ 81.210835][ C0] ? mld_dad_work+0x3a/0x4e0 [ 81.215415][ C0] ? process_one_work+0x6c8/0xbb0 [ 81.220461][ C0] ? ndisc_alloc_skb+0x290/0x290 [ 81.221200][ T64] FAULT_INJECTION: forcing a failure. [ 81.221200][ T64] name failslab, interval 1, probability 10, space 0, times 61 [ 81.225399][ C0] ? ndisc_send_rs+0x61f/0x960 [ 81.242921][ C0] ? memcpy+0x56/0x70 [ 81.246910][ C0] ndisc_send_rs+0x711/0x960 [ 81.251500][ C0] addrconf_rs_timer+0x35a/0x600 [ 81.256430][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 81.262491][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 81.268555][ C0] call_timer_fn+0x38/0x290 [ 81.273059][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 81.279245][ C0] __run_timers+0x637/0x9a0 [ 81.283770][ C0] ? calc_index+0x200/0x200 [ 81.288309][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 81.293171][ C0] run_timer_softirq+0x6a/0xf0 [ 81.297936][ C0] handle_softirqs+0x250/0x560 [ 81.302696][ C0] ? irqtime_account_irq+0xbe/0x390 [ 81.307886][ C0] __irq_exit_rcu+0x52/0xf0 [ 81.312381][ C0] irq_exit_rcu+0x9/0x10 [ 81.316615][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 81.322237][ C0] [ 81.325154][ C0] [ 81.328079][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 81.334050][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120 [ 81.339937][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 4d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 4e 95 fc 65 48 8b 1d 13 f7 [ 81.359659][ C0] RSP: 0018:ffffc900001476c0 EFLAGS: 00000246 [ 81.365751][ C0] RAX: 1ffff11020061dae RBX: ffffc90000147798 RCX: ffffffff870cbf00 [ 81.373745][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 81.381732][ C0] RBP: ffffc90000147748 R08: ffff88810030e2c7 R09: 1ffff11020061c58 [ 81.389695][ C0] R10: dffffc0000000000 R11: ffffed1020061c59 R12: 0000000000000000 [ 81.397657][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000028ed8 [ 81.405624][ C0] ? __cond_resched+0xd0/0xd0 [ 81.410318][ C0] irqentry_exit_cond_resched+0x29/0x30 [ 81.415877][ C0] irqentry_exit+0x37/0x40 [ 81.420289][ C0] sysvec_reschedule_ipi+0x78/0x80 [ 81.425398][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20 [ 81.430850][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 81.436301][ C0] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 81.455895][ C0] RSP: 0018:ffffc90000147840 EFLAGS: 00000293 [ 81.461969][ C0] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff88810030e2c0 [ 81.469934][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 81.477909][ C0] RBP: ffffc900001478c8 R08: 0000000000000003 R09: 0000000000000004 [ 81.485874][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 81.493857][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000028f08 [ 81.501906][ C0] ? dump_stack_lvl+0x13b/0x170 [ 81.504442][ T101] FAULT_INJECTION: forcing a failure. [ 81.504442][ T101] name failslab, interval 1, probability 10, space 0, times 61 [ 81.507128][ C0] ? show_regs_print_info+0x20/0x20 [ 81.525044][ C0] ? prandom_u32+0x24d/0x290 [ 81.529632][ C0] dump_stack+0x15/0x20 [ 81.533783][ C0] should_fail+0x3ab/0x500 [ 81.538195][ C0] __should_failslab+0xa4/0xe0 [ 81.542972][ C0] should_failslab+0x9/0x20 [ 81.547466][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 81.552397][ C0] kmem_cache_alloc_trace+0x48/0x270 [ 81.557672][ C0] ? dst_cow_metrics_generic+0x55/0x1c0 [ 81.563209][ C0] dst_cow_metrics_generic+0x55/0x1c0 [ 81.568572][ C0] icmp6_dst_alloc+0x35f/0x520 [ 81.573330][ C0] mld_sendpack+0x4d9/0xba0 [ 81.577828][ C0] ? add_grec+0x1340/0x1340 [ 81.582321][ C0] ? add_grec+0xf70/0x1340 [ 81.586733][ C0] ? memcpy+0x56/0x70 [ 81.590712][ C0] ? __kasan_check_write+0x14/0x20 [ 81.595814][ C0] mld_send_initial_cr+0x1c0/0x320 [ 81.600917][ C0] mld_dad_work+0x3a/0x4e0 [ 81.605321][ C0] process_one_work+0x6c8/0xbb0 [ 81.610178][ C0] worker_thread+0xaa0/0x1250 [ 81.614847][ C0] ? __kasan_check_read+0x11/0x20 [ 81.619858][ C0] kthread+0x3f5/0x4f0 [ 81.623911][ C0] ? worker_clr_flags+0x190/0x190 [ 81.628921][ C0] ? kthread_blkcg+0xd0/0xd0 [ 81.633495][ C0] ret_from_fork+0x1f/0x30 [ 81.637895][ C0] [ 81.640932][ T10] CPU: 1 PID: 10 Comm: kworker/u4:1 Not tainted syzkaller #0 [ 81.648304][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 81.658364][ T10] Workqueue: wg-kex-wg2 wg_packet_handshake_send_worker [ 81.665322][ T10] Call Trace: [ 81.668599][ T10] [ 81.671515][ T10] __dump_stack+0x21/0x30 [ 81.675833][ T10] dump_stack_lvl+0x110/0x170 [ 81.680493][ T10] ? show_regs_print_info+0x20/0x20 [ 81.685675][ T10] dump_stack+0x15/0x20 [ 81.689817][ T10] should_fail+0x3ab/0x500 [ 81.694222][ T10] ? wg_socket_send_buffer_to_peer+0x37/0x170 [ 81.700286][ T10] __should_failslab+0xa4/0xe0 [ 81.705038][ T10] should_failslab+0x9/0x20 [ 81.709534][ T10] slab_pre_alloc_hook+0x39/0xd0 [ 81.714457][ T10] ? wg_socket_send_buffer_to_peer+0x37/0x170 [ 81.720513][ T10] ? wg_socket_send_buffer_to_peer+0x37/0x170 [ 81.726564][ T10] __kmalloc_track_caller+0x6c/0x2c0 [ 81.731836][ T10] ? wg_socket_send_buffer_to_peer+0x37/0x170 [ 81.737890][ T10] ? wg_socket_send_buffer_to_peer+0x37/0x170 [ 81.743947][ T10] __alloc_skb+0x210/0x730 [ 81.748353][ T10] wg_socket_send_buffer_to_peer+0x37/0x170 [ 81.754233][ T10] ? ktime_get_coarse_with_offset+0x153/0x1a0 [ 81.760295][ T10] wg_packet_handshake_send_worker+0x200/0x290 [ 81.766437][ T10] ? wg_prev_queue_dequeue+0x230/0x230 [ 81.771889][ T10] ? __schedule+0xbd7/0x14a0 [ 81.776470][ T10] process_one_work+0x6c8/0xbb0 [ 81.781310][ T10] worker_thread+0xaa0/0x1250 [ 81.785980][ T10] kthread+0x3f5/0x4f0 [ 81.790032][ T10] ? worker_clr_flags+0x190/0x190 [ 81.795046][ T10] ? kthread_blkcg+0xd0/0xd0 [ 81.799624][ T10] ret_from_fork+0x1f/0x30 [ 81.804128][ T10] [ 81.807134][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 81.811206][ T90] FAULT_INJECTION: forcing a failure. [ 81.811206][ T90] name failslab, interval 1, probability 10, space 0, times 59 [ 81.814090][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 81.836888][ T2] Call Trace: [ 81.840153][ T2] [ 81.843071][ T2] __dump_stack+0x21/0x30 [ 81.847393][ T2] dump_stack_lvl+0x110/0x170 [ 81.852056][ T2] ? show_regs_print_info+0x20/0x20 [ 81.857240][ T2] ? prandom_u32+0x24d/0x290 [ 81.861820][ T2] dump_stack+0x15/0x20 [ 81.865965][ T2] should_fail+0x3ab/0x500 [ 81.870370][ T2] __should_failslab+0xa4/0xe0 [ 81.875137][ T2] should_failslab+0x9/0x20 [ 81.879630][ T2] slab_pre_alloc_hook+0x39/0xd0 [ 81.884555][ T2] ? copy_signal+0x53/0x5f0 [ 81.889045][ T2] kmem_cache_alloc+0x44/0x260 [ 81.893801][ T2] ? memcpy+0x56/0x70 [ 81.897773][ T2] copy_signal+0x53/0x5f0 [ 81.902090][ T2] copy_process+0x1158/0x3280 [ 81.906763][ T2] ? __pidfd_prepare+0x150/0x150 [ 81.911688][ T2] ? __switch_to+0x56c/0x1070 [ 81.916352][ T2] kernel_clone+0x233/0x960 [ 81.920844][ T2] ? create_io_thread+0x170/0x170 [ 81.925884][ T2] ? finish_task_switch+0x16b/0x790 [ 81.931162][ T2] ? kthread_blkcg+0xd0/0xd0 [ 81.935745][ T2] kernel_thread+0xfe/0x170 [ 81.940235][ T2] ? ptrace_event_pid+0x180/0x180 [ 81.945248][ T2] ? kthread_blkcg+0xd0/0xd0 [ 81.949828][ T2] ? _raw_spin_trylock_bh+0x150/0x150 [ 81.955187][ T2] ? __kasan_check_read+0x11/0x20 [ 81.960201][ T2] kthreadd+0x346/0x480 [ 81.964342][ T2] ? tokenize_frame_descr+0x93/0xc0 [ 81.969526][ T2] ? kthread_stop+0x3e0/0x3e0 [ 81.974190][ T2] ? _raw_spin_unlock_irq+0x4e/0x70 [ 81.979384][ T2] ? calculate_sigpending+0x7c/0x90 [ 81.984569][ T2] ? kthread_stop+0x3e0/0x3e0 [ 81.989245][ T2] ret_from_fork+0x1f/0x30 [ 81.993649][ T2] [ 81.996654][ T64] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0 [ 81.996771][ C0] FAULT_INJECTION: forcing a failure. [ 81.996771][ C0] name failslab, interval 1, probability 10, space 0, times 59 [ 82.003927][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 82.003938][ T64] Call Trace: [ 82.003943][ T64] [ 82.003949][ T64] __dump_stack+0x21/0x30 [ 82.037166][ T64] dump_stack_lvl+0x110/0x170 [ 82.041830][ T64] ? show_regs_print_info+0x20/0x20 [ 82.047024][ T64] ? prandom_u32+0x24d/0x290 [ 82.051598][ T64] dump_stack+0x15/0x20 [ 82.055740][ T64] should_fail+0x3ab/0x500 [ 82.060147][ T64] __should_failslab+0xa4/0xe0 [ 82.064897][ T64] should_failslab+0x9/0x20 [ 82.069388][ T64] slab_pre_alloc_hook+0x39/0xd0 [ 82.074314][ T64] ? mempool_alloc_slab+0x1d/0x30 [ 82.079333][ T64] kmem_cache_alloc+0x44/0x260 [ 82.084084][ T64] ? submit_bio_noacct+0x762/0x800 [ 82.089182][ T64] ? mempool_free+0x330/0x330 [ 82.093862][ T64] mempool_alloc_slab+0x1d/0x30 [ 82.098697][ T64] mempool_alloc+0x167/0x4c0 [ 82.103270][ T64] ? chksum_update+0x47/0xa0 [ 82.107849][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0 [ 82.113729][ T64] ? crypto_shash_update+0x216/0x300 [ 82.119089][ T64] ? mempool_resize+0x880/0x880 [ 82.123925][ T64] ? blkcg_set_ioprio+0x1f6/0x320 [ 82.128934][ T64] ? submit_bio+0x367/0x620 [ 82.133423][ T64] ? submit_bio_noacct+0x800/0x800 [ 82.138521][ T64] bio_alloc_bioset+0x124/0x910 [ 82.143359][ T64] submit_bh_wbc+0x1c2/0x680 [ 82.147938][ T64] submit_bh+0x2a/0x40 [ 82.151997][ T64] jbd2_journal_commit_transaction+0x2461/0x5650 [ 82.158319][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 82.165071][ T64] ? __switch_to+0x56c/0x1070 [ 82.169737][ T64] ? compat_start_thread+0x20/0x20 [ 82.174834][ T64] ? _raw_spin_unlock+0x4d/0x70 [ 82.179674][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 82.184355][ T64] ? __kasan_check_write+0x14/0x20 [ 82.189469][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 82.194926][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 82.199603][ T64] ? detach_if_pending+0xf5/0x300 [ 82.204620][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 82.210415][ T64] ? del_timer_sync+0x144/0x1a0 [ 82.215264][ T64] kjournald2+0x43d/0x860 [ 82.219586][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 82.224776][ T64] ? io_schedule+0xe0/0xe0 [ 82.229179][ T64] ? __kasan_check_read+0x11/0x20 [ 82.234217][ T64] ? __kthread_parkme+0xab/0x1f0 [ 82.239145][ T64] kthread+0x3f5/0x4f0 [ 82.243205][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 82.248390][ T64] ? kthread_blkcg+0xd0/0xd0 [ 82.252970][ T64] ret_from_fork+0x1f/0x30 [ 82.257380][ T64] [ 82.260387][ C0] CPU: 0 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 82.267328][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 82.277378][ C0] Call Trace: [ 82.280650][ C0] [ 82.283483][ C0] __dump_stack+0x21/0x30 [ 82.287807][ C0] dump_stack_lvl+0x110/0x170 [ 82.292472][ C0] ? show_regs_print_info+0x20/0x20 [ 82.297670][ C0] dump_stack+0x15/0x20 [ 82.301816][ C0] should_fail+0x3ab/0x500 [ 82.306222][ C0] ? ndisc_send_rs+0x310/0x960 [ 82.310989][ C0] __should_failslab+0xa4/0xe0 [ 82.315763][ C0] should_failslab+0x9/0x20 [ 82.320271][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 82.325207][ C0] ? ndisc_send_rs+0x310/0x960 [ 82.329964][ C0] ? ndisc_send_rs+0x310/0x960 [ 82.334715][ C0] __kmalloc_track_caller+0x6c/0x2c0 [ 82.339992][ C0] ? ndisc_send_rs+0x310/0x960 [ 82.344745][ C0] ? ndisc_send_rs+0x310/0x960 [ 82.349497][ C0] __alloc_skb+0x210/0x730 [ 82.353908][ C0] ndisc_send_rs+0x310/0x960 [ 82.358486][ C0] addrconf_rs_timer+0x35a/0x600 [ 82.363412][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 82.369472][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 82.374487][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 82.380033][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 82.386093][ C0] call_timer_fn+0x38/0x290 [ 82.390585][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 82.396642][ C0] __run_timers+0x637/0x9a0 [ 82.401138][ C0] ? calc_index+0x200/0x200 [ 82.405631][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 82.410473][ C0] run_timer_softirq+0x6a/0xf0 [ 82.415228][ C0] handle_softirqs+0x250/0x560 [ 82.419983][ C0] ? irqtime_account_irq+0xbe/0x390 [ 82.425169][ C0] __irq_exit_rcu+0x52/0xf0 [ 82.429661][ C0] irq_exit_rcu+0x9/0x10 [ 82.433894][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 82.439518][ C0] [ 82.442434][ C0] [ 82.445351][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 82.451318][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120 [ 82.457572][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 4d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 4e 95 fc 65 48 8b 1d 13 f7 [ 82.477179][ C0] RSP: 0018:ffffc90000027740 EFLAGS: 00000246 [ 82.483242][ C0] RAX: 1ffff1102004c8be RBX: ffffc90000027818 RCX: ffffffff870cbf00 [ 82.491207][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 82.499168][ C0] RBP: ffffc900000277c8 R08: ffff888100263b47 R09: 1ffff1102004c768 [ 82.507132][ C0] R10: dffffc0000000000 R11: ffffed102004c769 R12: 0000000000000000 [ 82.515090][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000004ee8 [ 82.521247][ T45] FAULT_INJECTION: forcing a failure. [ 82.521247][ T45] name failslab, interval 1, probability 10, space 0, times 59 [ 82.523051][ C0] ? __cond_resched+0xd0/0xd0 [ 82.540445][ C0] irqentry_exit_cond_resched+0x29/0x30 [ 82.545986][ C0] irqentry_exit+0x37/0x40 [ 82.550392][ C0] sysvec_reschedule_ipi+0x78/0x80 [ 82.555494][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20 [ 82.560940][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 82.566395][ C0] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 82.585991][ C0] RSP: 0018:ffffc900000278c0 EFLAGS: 00000293 [ 82.592047][ C0] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff888100263b40 [ 82.600008][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 82.607964][ C0] RBP: ffffc90000027950 R08: 0000000000000003 R09: 0000000000000004 [ 82.615922][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 82.623903][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000004f18 [ 82.631863][ C0] ? dump_stack_lvl+0x13b/0x170 [ 82.636757][ C0] ? show_regs_print_info+0x20/0x20 [ 82.641940][ C0] ? prandom_u32+0x24d/0x290 [ 82.646519][ C0] dump_stack+0x15/0x20 [ 82.650661][ C0] should_fail+0x3ab/0x500 [ 82.655072][ C0] __should_failslab+0xa4/0xe0 [ 82.659828][ C0] should_failslab+0x9/0x20 [ 82.664321][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 82.669253][ C0] ? copy_signal+0x53/0x5f0 [ 82.673772][ C0] kmem_cache_alloc+0x44/0x260 [ 82.678527][ C0] ? memcpy+0x56/0x70 [ 82.682498][ C0] copy_signal+0x53/0x5f0 [ 82.686814][ C0] copy_process+0x1158/0x3280 [ 82.691490][ C0] ? __pidfd_prepare+0x150/0x150 [ 82.696418][ C0] ? __switch_to+0x56c/0x1070 [ 82.701085][ C0] kernel_clone+0x233/0x960 [ 82.705583][ C0] ? create_io_thread+0x170/0x170 [ 82.710687][ C0] ? finish_task_switch+0x16b/0x790 [ 82.715880][ C0] ? kthread_blkcg+0xd0/0xd0 [ 82.720478][ C0] kernel_thread+0xfe/0x170 [ 82.724975][ C0] ? ptrace_event_pid+0x180/0x180 [ 82.729992][ C0] ? kthread_blkcg+0xd0/0xd0 [ 82.734574][ C0] ? _raw_spin_trylock_bh+0x150/0x150 [ 82.739941][ C0] ? __kasan_check_read+0x11/0x20 [ 82.745043][ C0] kthreadd+0x346/0x480 [ 82.749194][ C0] ? tokenize_frame_descr+0x93/0xc0 [ 82.754385][ C0] ? kthread_stop+0x3e0/0x3e0 [ 82.759051][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 82.761251][ T184] FAULT_INJECTION: forcing a failure. [ 82.761251][ T184] name failslab, interval 1, probability 10, space 0, times 58 [ 82.764234][ C0] ? calculate_sigpending+0x7c/0x90 [ 82.782152][ C0] ? kthread_stop+0x3e0/0x3e0 [ 82.786942][ C0] ret_from_fork+0x1f/0x30 [ 82.791350][ C0] [ 82.794357][ T101] CPU: 1 PID: 101 Comm: udevd Not tainted syzkaller #0 [ 82.794396][ C0] FAULT_INJECTION: forcing a failure. [ 82.794396][ C0] name failslab, interval 1, probability 10, space 0, times 57 [ 82.801202][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 82.801213][ T101] Call Trace: [ 82.801219][ T101] [ 82.830156][ T101] __dump_stack+0x21/0x30 [ 82.834481][ T101] dump_stack_lvl+0x110/0x170 [ 82.839145][ T101] ? show_regs_print_info+0x20/0x20 [ 82.844330][ T101] dump_stack+0x15/0x20 [ 82.848475][ T101] should_fail+0x3ab/0x500 [ 82.852885][ T101] __should_failslab+0xa4/0xe0 [ 82.857640][ T101] should_failslab+0x9/0x20 [ 82.862133][ T101] slab_pre_alloc_hook+0x39/0xd0 [ 82.867064][ T101] ? getname_flags+0xba/0x510 [ 82.871814][ T101] kmem_cache_alloc+0x44/0x260 [ 82.876569][ T101] getname_flags+0xba/0x510 [ 82.881068][ T101] user_path_at_empty+0x2f/0x1c0 [ 82.885994][ T101] vfs_statx+0x109/0xa20 [ 82.890231][ T101] ? do_epoll_wait+0x16c3/0x1750 [ 82.895156][ T101] ? vfs_fstatat+0x40/0x40 [ 82.899563][ T101] __se_sys_newfstatat+0x10e/0x3d0 [ 82.904753][ T101] ? __x64_sys_newfstatat+0xb0/0xb0 [ 82.909946][ T101] ? ep_destroy_wakeup_source+0x50/0x50 [ 82.915480][ T101] ? kmem_cache_free+0x100/0x320 [ 82.920408][ T101] ? do_epoll_wait+0x1750/0x1750 [ 82.925334][ T101] ? blkcg_maybe_throttle_current+0x1e0/0xa00 [ 82.931396][ T101] ? __fput+0x67c/0x900 [ 82.935553][ T101] ? __kasan_check_write+0x14/0x20 [ 82.940657][ T101] ? switch_fpu_return+0x15d/0x2c0 [ 82.945757][ T101] __x64_sys_newfstatat+0x9b/0xb0 [ 82.950771][ T101] x64_sys_call+0x2c1/0x9a0 [ 82.955266][ T101] do_syscall_64+0x4c/0xa0 [ 82.959671][ T101] ? clear_bhb_loop+0x50/0xa0 [ 82.964341][ T101] ? clear_bhb_loop+0x50/0xa0 [ 82.969006][ T101] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.974889][ T101] RIP: 0033:0x7f34aab03b0a [ 82.979292][ T101] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 [ 82.998894][ T101] RSP: 002b:00007ffcef891a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 83.007299][ T101] RAX: ffffffffffffffda RBX: 0000556f2e684400 RCX: 00007f34aab03b0a [ 83.015260][ T101] RDX: 00007ffcef891a40 RSI: 0000556f2e672296 RDI: 00000000ffffff9c [ 83.023224][ T101] RBP: 0000556f41ef1658 R08: 0000000004db563c R09: 001c330656e6b45a [ 83.031271][ T101] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 83.039234][ T101] R13: 00007ffcef891a40 R14: 0000000000000000 R15: 0000000000000000 [ 83.047201][ T101] [ 83.050209][ C0] CPU: 0 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 83.057149][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 83.067195][ C0] Call Trace: [ 83.070465][ C0] [ 83.073297][ C0] __dump_stack+0x21/0x30 [ 83.077620][ C0] dump_stack_lvl+0x110/0x170 [ 83.082282][ C0] ? show_regs_print_info+0x20/0x20 [ 83.087475][ C0] ? prandom_u32+0x24d/0x290 [ 83.092081][ C0] dump_stack+0x15/0x20 [ 83.096238][ C0] should_fail+0x3ab/0x500 [ 83.100645][ C0] __should_failslab+0xa4/0xe0 [ 83.105400][ C0] should_failslab+0x9/0x20 [ 83.109897][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 83.114824][ C0] ? __alloc_skb+0xe4/0x730 [ 83.119344][ C0] kmem_cache_alloc+0x44/0x260 [ 83.124099][ C0] __alloc_skb+0xe4/0x730 [ 83.128419][ C0] ndisc_send_rs+0x310/0x960 [ 83.133003][ C0] addrconf_rs_timer+0x35a/0x600 [ 83.137934][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 83.144003][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 83.149041][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 83.154592][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 83.160664][ C0] call_timer_fn+0x38/0x290 [ 83.165167][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 83.171232][ C0] __run_timers+0x637/0x9a0 [ 83.175729][ C0] ? calc_index+0x200/0x200 [ 83.180227][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 83.185078][ C0] run_timer_softirq+0x6a/0xf0 [ 83.189839][ C0] handle_softirqs+0x250/0x560 [ 83.194593][ C0] ? irqtime_account_irq+0xbe/0x390 [ 83.199784][ C0] __irq_exit_rcu+0x52/0xf0 [ 83.204279][ C0] irq_exit_rcu+0x9/0x10 [ 83.208516][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 83.214142][ C0] [ 83.217060][ C0] [ 83.219977][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 83.225948][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120 [ 83.231857][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 4d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 4e 95 fc 65 48 8b 1d 13 f7 [ 83.251458][ C0] RSP: 0018:ffffc90000027740 EFLAGS: 00000246 [ 83.257516][ C0] RAX: 1ffff1102004c8be RBX: ffffc90000027818 RCX: ffffffff870cbf00 [ 83.265474][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 83.273438][ C0] RBP: ffffc900000277c8 R08: ffff888100263b47 R09: 1ffff1102004c768 [ 83.281414][ C0] R10: dffffc0000000000 R11: ffffed102004c769 R12: 0000000000000000 [ 83.289375][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000004ee8 [ 83.297352][ C0] ? __cond_resched+0xd0/0xd0 [ 83.302023][ C0] irqentry_exit_cond_resched+0x29/0x30 [ 83.307642][ C0] irqentry_exit+0x37/0x40 [ 83.312038][ C0] sysvec_reschedule_ipi+0x78/0x80 [ 83.317132][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20 [ 83.322579][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 83.328019][ C0] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 83.347697][ C0] RSP: 0018:ffffc900000278c0 EFLAGS: 00000293 [ 83.353750][ C0] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff888100263b40 [ 83.361702][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 83.369658][ C0] RBP: ffffc90000027950 R08: 0000000000000003 R09: 0000000000000004 [ 83.377611][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 83.385566][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000004f18 [ 83.393655][ C0] ? dump_stack_lvl+0x13b/0x170 [ 83.398504][ C0] ? show_regs_print_info+0x20/0x20 [ 83.403689][ C0] ? prandom_u32+0x24d/0x290 [ 83.408266][ C0] dump_stack+0x15/0x20 [ 83.412400][ C0] should_fail+0x3ab/0x500 [ 83.416800][ C0] __should_failslab+0xa4/0xe0 [ 83.421546][ C0] should_failslab+0x9/0x20 [ 83.426033][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 83.430954][ C0] ? copy_signal+0x53/0x5f0 [ 83.435438][ C0] kmem_cache_alloc+0x44/0x260 [ 83.440185][ C0] ? memcpy+0x56/0x70 [ 83.444149][ C0] copy_signal+0x53/0x5f0 [ 83.448465][ C0] copy_process+0x1158/0x3280 [ 83.453132][ C0] ? __pidfd_prepare+0x150/0x150 [ 83.458062][ C0] ? __switch_to+0x56c/0x1070 [ 83.462724][ C0] kernel_clone+0x233/0x960 [ 83.467212][ C0] ? create_io_thread+0x170/0x170 [ 83.472217][ C0] ? finish_task_switch+0x16b/0x790 [ 83.477399][ C0] ? kthread_blkcg+0xd0/0xd0 [ 83.481974][ C0] kernel_thread+0xfe/0x170 [ 83.486464][ C0] ? ptrace_event_pid+0x180/0x180 [ 83.491475][ C0] ? kthread_blkcg+0xd0/0xd0 [ 83.496051][ C0] ? _raw_spin_trylock_bh+0x150/0x150 [ 83.501407][ C0] ? __kasan_check_read+0x11/0x20 [ 83.506413][ C0] kthreadd+0x346/0x480 [ 83.510553][ C0] ? tokenize_frame_descr+0x93/0xc0 [ 83.515734][ C0] ? kthread_stop+0x3e0/0x3e0 [ 83.520392][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 83.525574][ C0] ? calculate_sigpending+0x7c/0x90 [ 83.530756][ C0] ? kthread_stop+0x3e0/0x3e0 [ 83.535413][ C0] ret_from_fork+0x1f/0x30 [ 83.539813][ C0] [ 83.542846][ T90] CPU: 1 PID: 90 Comm: klogd Not tainted syzkaller #0 [ 83.543001][ C0] FAULT_INJECTION: forcing a failure. [ 83.543001][ C0] name failslab, interval 1, probability 10, space 0, times 54 [ 83.549608][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 83.572375][ T90] Call Trace: [ 83.575666][ T90] [ 83.578584][ T90] __dump_stack+0x21/0x30 [ 83.582908][ T90] dump_stack_lvl+0x110/0x170 [ 83.587572][ T90] ? show_regs_print_info+0x20/0x20 [ 83.592762][ T90] ? prandom_u32+0x24d/0x290 [ 83.597343][ T90] dump_stack+0x15/0x20 [ 83.601487][ T90] should_fail+0x3ab/0x500 [ 83.605919][ T90] ? alloc_skb_with_frags+0xa8/0x620 [ 83.611196][ T90] __should_failslab+0xa4/0xe0 [ 83.615952][ T90] should_failslab+0x9/0x20 [ 83.620448][ T90] slab_pre_alloc_hook+0x39/0xd0 [ 83.625378][ T90] ? alloc_skb_with_frags+0xa8/0x620 [ 83.630744][ T90] ? alloc_skb_with_frags+0xa8/0x620 [ 83.636019][ T90] __kmalloc_track_caller+0x6c/0x2c0 [ 83.641298][ T90] ? alloc_skb_with_frags+0xa8/0x620 [ 83.646579][ T90] ? alloc_skb_with_frags+0xa8/0x620 [ 83.651877][ T90] __alloc_skb+0x210/0x730 [ 83.656287][ T90] alloc_skb_with_frags+0xa8/0x620 [ 83.661389][ T90] ? memcpy+0x56/0x70 [ 83.665362][ T90] sock_alloc_send_pskb+0x87f/0x9a0 [ 83.670557][ T90] ? sock_kzfree_s+0x60/0x60 [ 83.675143][ T90] ? __kasan_check_write+0x14/0x20 [ 83.680249][ T90] ? _raw_spin_lock+0x94/0xf0 [ 83.684914][ T90] ? _raw_spin_trylock_bh+0x150/0x150 [ 83.690279][ T90] unix_dgram_sendmsg+0x6f3/0x19b0 [ 83.695390][ T90] ? unix_dgram_poll+0x6c0/0x6c0 [ 83.700323][ T90] ? security_socket_sendmsg+0x82/0xa0 [ 83.705775][ T90] __sys_sendto+0x46d/0x620 [ 83.710269][ T90] ? __ia32_sys_getpeername+0x90/0x90 [ 83.715640][ T90] __x64_sys_sendto+0xe5/0x100 [ 83.720396][ T90] x64_sys_call+0x178/0x9a0 [ 83.724894][ T90] do_syscall_64+0x4c/0xa0 [ 83.729304][ T90] ? clear_bhb_loop+0x50/0xa0 [ 83.733971][ T90] ? clear_bhb_loop+0x50/0xa0 [ 83.738648][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.744532][ T90] RIP: 0033:0x7f7c11b25407 [ 83.748938][ T90] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 83.768537][ T90] RSP: 002b:00007ffecf111530 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 83.776946][ T90] RAX: ffffffffffffffda RBX: 00007f7c119d5c80 RCX: 00007f7c11b25407 [ 83.784914][ T90] RDX: 0000000000000044 RSI: 00007ffecf111670 RDI: 0000000000000003 [ 83.792878][ T90] RBP: 00007ffecf111aa0 R08: 0000000000000000 R09: 0000000000000000 [ 83.800858][ T90] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffecf111ab8 [ 83.808828][ T90] R13: 00007ffecf111670 R14: 0000000000000029 R15: 00007ffecf111670 [ 83.816793][ T90] [ 83.819806][ C0] CPU: 0 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 83.826742][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 83.836788][ C0] Call Trace: [ 83.840059][ C0] [ 83.842894][ C0] __dump_stack+0x21/0x30 [ 83.847217][ C0] dump_stack_lvl+0x110/0x170 [ 83.851885][ C0] ? show_regs_print_info+0x20/0x20 [ 83.857076][ C0] dump_stack+0x15/0x20 [ 83.861224][ C0] should_fail+0x3ab/0x500 [ 83.865636][ C0] ? ndisc_send_rs+0x310/0x960 [ 83.870392][ C0] __should_failslab+0xa4/0xe0 [ 83.875147][ C0] should_failslab+0x9/0x20 [ 83.879673][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 83.884605][ C0] ? ndisc_send_rs+0x310/0x960 [ 83.889361][ C0] ? ndisc_send_rs+0x310/0x960 [ 83.894120][ C0] __kmalloc_track_caller+0x6c/0x2c0 [ 83.899397][ C0] ? ndisc_send_rs+0x310/0x960 [ 83.904149][ C0] ? ndisc_send_rs+0x310/0x960 [ 83.908910][ C0] __alloc_skb+0x210/0x730 [ 83.913320][ C0] ndisc_send_rs+0x310/0x960 [ 83.917901][ C0] addrconf_rs_timer+0x35a/0x600 [ 83.922830][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 83.928925][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 83.935116][ C0] call_timer_fn+0x38/0x290 [ 83.939614][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 83.945695][ C0] __run_timers+0x637/0x9a0 [ 83.950211][ C0] ? calc_index+0x200/0x200 [ 83.954724][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 83.959589][ C0] run_timer_softirq+0x6a/0xf0 [ 83.964347][ C0] handle_softirqs+0x250/0x560 [ 83.969128][ C0] ? irqtime_account_irq+0xbe/0x390 [ 83.974346][ C0] __irq_exit_rcu+0x52/0xf0 [ 83.978841][ C0] irq_exit_rcu+0x9/0x10 [ 83.983074][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 83.988704][ C0] [ 83.991624][ C0] [ 83.994542][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 84.000512][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120 [ 84.006398][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 4d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 4e 95 fc 65 48 8b 1d 13 f7 [ 84.026004][ C0] RSP: 0018:ffffc90000027740 EFLAGS: 00000246 [ 84.032065][ C0] RAX: 1ffff1102004c8be RBX: ffffc90000027818 RCX: ffffffff870cbf00 [ 84.040032][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 84.047992][ C0] RBP: ffffc900000277c8 R08: ffff888100263b47 R09: 1ffff1102004c768 [ 84.055950][ C0] R10: dffffc0000000000 R11: ffffed102004c769 R12: 0000000000000000 [ 84.063911][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000004ee8 [ 84.071876][ C0] ? __cond_resched+0xd0/0xd0 [ 84.076549][ C0] irqentry_exit_cond_resched+0x29/0x30 [ 84.082116][ C0] irqentry_exit+0x37/0x40 [ 84.086522][ C0] sysvec_reschedule_ipi+0x78/0x80 [ 84.091628][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20 [ 84.097096][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 84.102670][ C0] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 84.122294][ C0] RSP: 0018:ffffc900000278c0 EFLAGS: 00000293 [ 84.128363][ C0] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff888100263b40 [ 84.136326][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 84.144288][ C0] RBP: ffffc90000027950 R08: 0000000000000003 R09: 0000000000000004 [ 84.152252][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 84.160221][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000004f18 [ 84.168191][ C0] ? dump_stack_lvl+0x13b/0x170 [ 84.173044][ C0] ? show_regs_print_info+0x20/0x20 [ 84.178254][ C0] ? prandom_u32+0x24d/0x290 [ 84.182843][ C0] dump_stack+0x15/0x20 [ 84.186992][ C0] should_fail+0x3ab/0x500 [ 84.191402][ C0] __should_failslab+0xa4/0xe0 [ 84.196161][ C0] should_failslab+0x9/0x20 [ 84.200659][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 84.205588][ C0] ? copy_signal+0x53/0x5f0 [ 84.210113][ C0] kmem_cache_alloc+0x44/0x260 [ 84.214868][ C0] ? memcpy+0x56/0x70 [ 84.218840][ C0] copy_signal+0x53/0x5f0 [ 84.223165][ C0] copy_process+0x1158/0x3280 [ 84.227840][ C0] ? __pidfd_prepare+0x150/0x150 [ 84.232774][ C0] ? __switch_to+0x56c/0x1070 [ 84.237446][ C0] kernel_clone+0x233/0x960 [ 84.241949][ C0] ? create_io_thread+0x170/0x170 [ 84.246968][ C0] ? finish_task_switch+0x16b/0x790 [ 84.252162][ C0] ? kthread_blkcg+0xd0/0xd0 [ 84.256744][ C0] kernel_thread+0xfe/0x170 [ 84.261243][ C0] ? ptrace_event_pid+0x180/0x180 [ 84.266261][ C0] ? kthread_blkcg+0xd0/0xd0 [ 84.270847][ C0] ? _raw_spin_trylock_bh+0x150/0x150 [ 84.276216][ C0] ? __kasan_check_read+0x11/0x20 [ 84.281234][ C0] kthreadd+0x346/0x480 [ 84.285382][ C0] ? tokenize_frame_descr+0x93/0xc0 [ 84.290573][ C0] ? kthread_stop+0x3e0/0x3e0 [ 84.295244][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 84.300532][ C0] ? calculate_sigpending+0x7c/0x90 [ 84.305719][ C0] ? kthread_stop+0x3e0/0x3e0 [ 84.310388][ C0] ret_from_fork+0x1f/0x30 [ 84.314799][ C0] [ 84.317807][ T300] CPU: 1 PID: 300 Comm: syz-executor Not tainted syzkaller #0 [ 84.318135][ T315] workqueue: Failed to create a worker thread: -ENOMEM [ 84.325264][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 84.325275][ T300] Call Trace: [ 84.325280][ T300] [ 84.325287][ T300] __dump_stack+0x21/0x30 [ 84.332250][ T2] FAULT_INJECTION: forcing a failure. [ 84.332250][ T2] name failslab, interval 1, probability 10, space 0, times 51 [ 84.342166][ T300] dump_stack_lvl+0x110/0x170 [ 84.342185][ T300] ? show_regs_print_info+0x20/0x20 [ 84.375216][ T300] dump_stack+0x15/0x20 [ 84.379368][ T300] should_fail+0x3ab/0x500 [ 84.383774][ T300] ? sk_stream_alloc_skb+0x216/0xb70 [ 84.389050][ T300] __should_failslab+0xa4/0xe0 [ 84.393812][ T300] should_failslab+0x9/0x20 [ 84.398308][ T300] slab_pre_alloc_hook+0x39/0xd0 [ 84.403237][ T300] ? sk_stream_alloc_skb+0x216/0xb70 [ 84.408509][ T300] ? sk_stream_alloc_skb+0x216/0xb70 [ 84.413784][ T300] __kmalloc_track_caller+0x6c/0x2c0 [ 84.419058][ T300] ? sk_stream_alloc_skb+0x216/0xb70 [ 84.424349][ T300] ? sk_stream_alloc_skb+0x216/0xb70 [ 84.429644][ T300] __alloc_skb+0x210/0x730 [ 84.434055][ T300] sk_stream_alloc_skb+0x216/0xb70 [ 84.439165][ T300] tcp_sendmsg_locked+0xcbb/0x3330 [ 84.444272][ T300] ? _raw_spin_lock_irq+0xf0/0xf0 [ 84.449296][ T300] ? lock_sock_nested+0x217/0x2a0 [ 84.454313][ T300] ? tcp_free_fastopen_req+0x80/0x80 [ 84.459588][ T300] tcp_sendmsg+0x2f/0x50 [ 84.463822][ T300] inet_sendmsg+0xa5/0xc0 [ 84.468143][ T300] sock_write_iter+0x2a6/0x3a0 [ 84.472897][ T300] ? sock_read_iter+0x380/0x380 [ 84.477740][ T300] ? memset+0x35/0x40 [ 84.481711][ T300] ? iov_iter_init+0xbc/0x180 [ 84.486382][ T300] vfs_write+0x831/0xfd0 [ 84.490611][ T300] ? _copy_from_user+0x95/0xd0 [ 84.495364][ T300] ? file_end_write+0x1b0/0x1b0 [ 84.500207][ T300] ? __kasan_check_read+0x11/0x20 [ 84.505222][ T300] ? __fdget_pos+0x1f7/0x380 [ 84.509801][ T300] ksys_write+0x14a/0x260 [ 84.514123][ T300] ? __ia32_sys_read+0x90/0x90 [ 84.518873][ T300] ? debug_smp_processor_id+0x17/0x20 [ 84.524238][ T300] __x64_sys_write+0x7b/0x90 [ 84.528835][ T300] x64_sys_call+0x8ef/0x9a0 [ 84.533340][ T300] do_syscall_64+0x4c/0xa0 [ 84.537742][ T300] ? clear_bhb_loop+0x50/0xa0 [ 84.542408][ T300] ? clear_bhb_loop+0x50/0xa0 [ 84.547074][ T300] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.552955][ T300] RIP: 0033:0x7eff70a5d017 [ 84.557358][ T300] Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 84.576953][ T300] RSP: 002b:00007ffe50610840 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 84.585361][ T300] RAX: ffffffffffffffda RBX: 000055558b938500 RCX: 00007eff70a5d017 [ 84.593409][ T300] RDX: 00000000000000a8 RSI: 00007eff70503f58 RDI: 0000000000000003 [ 84.601376][ T300] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 84.609339][ T300] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000000a8 [ 84.617298][ T300] R13: 000055558b94c8f0 R14: 00007ffe50610e20 R15: 00007eff70503f58 [ 84.625264][ T300] [ 84.628273][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 84.635209][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 84.645278][ T2] Call Trace: [ 84.648550][ T2] [ 84.651469][ T2] __dump_stack+0x21/0x30 [ 84.655791][ T2] dump_stack_lvl+0x110/0x170 [ 84.660457][ T2] ? show_regs_print_info+0x20/0x20 [ 84.665645][ T2] ? prandom_u32+0x24d/0x290 [ 84.670224][ T2] dump_stack+0x15/0x20 [ 84.674367][ T2] should_fail+0x3ab/0x500 [ 84.678775][ T2] __should_failslab+0xa4/0xe0 [ 84.683532][ T2] should_failslab+0x9/0x20 [ 84.688125][ T2] slab_pre_alloc_hook+0x39/0xd0 [ 84.693054][ T2] ? copy_signal+0x53/0x5f0 [ 84.697555][ T2] kmem_cache_alloc+0x44/0x260 [ 84.702335][ T2] ? memcpy+0x56/0x70 [ 84.706308][ T2] copy_signal+0x53/0x5f0 [ 84.710713][ T2] copy_process+0x1158/0x3280 [ 84.715385][ T2] ? __pidfd_prepare+0x150/0x150 [ 84.720314][ T2] kernel_clone+0x233/0x960 [ 84.724804][ T2] ? create_io_thread+0x170/0x170 [ 84.729817][ T2] ? kthread_blkcg+0xd0/0xd0 [ 84.734393][ T2] kernel_thread+0xfe/0x170 [ 84.738972][ T2] ? ptrace_event_pid+0x180/0x180 [ 84.743986][ T2] ? kthread_blkcg+0xd0/0xd0 [ 84.748567][ T2] ? _raw_spin_trylock_bh+0x150/0x150 [ 84.751198][ T64] FAULT_INJECTION: forcing a failure. [ 84.751198][ T64] name failslab, interval 1, probability 10, space 0, times 50 [ 84.753927][ T2] ? complete+0x69/0xb0 [ 84.770824][ T2] kthreadd+0x346/0x480 [ 84.774971][ T2] ? tokenize_frame_descr+0x93/0xc0 [ 84.780160][ T2] ? kthread_stop+0x3e0/0x3e0 [ 84.784833][ T2] ? _raw_spin_unlock_irq+0x4e/0x70 [ 84.790018][ T2] ? calculate_sigpending+0x7c/0x90 [ 84.795208][ T2] ? kthread_stop+0x3e0/0x3e0 [ 84.799878][ T2] ret_from_fork+0x1f/0x30 [ 84.804283][ T2] [ 84.807315][ T45] CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted syzkaller #0 [ 84.808496][ T2] FAULT_INJECTION: forcing a failure. [ 84.808496][ T2] name failslab, interval 1, probability 10, space 0, times 49 [ 84.814682][ T45] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 84.814694][ T45] Workqueue: writeback wb_workfn (flush-8:0) [ 84.843428][ T45] Call Trace: [ 84.846695][ T45] [ 84.849614][ T45] __dump_stack+0x21/0x30 [ 84.853932][ T45] dump_stack_lvl+0x110/0x170 [ 84.858601][ T45] ? show_regs_print_info+0x20/0x20 [ 84.863788][ T45] ? prandom_u32+0x24d/0x290 [ 84.868373][ T45] dump_stack+0x15/0x20 [ 84.872517][ T45] should_fail+0x3ab/0x500 [ 84.876928][ T45] __should_failslab+0xa4/0xe0 [ 84.881706][ T45] should_failslab+0x9/0x20 [ 84.886201][ T45] slab_pre_alloc_hook+0x39/0xd0 [ 84.891132][ T45] ? jbd2__journal_start+0x13d/0x6e0 [ 84.896407][ T45] kmem_cache_alloc+0x44/0x260 [ 84.901159][ T45] ? slab_post_alloc_hook+0x6d/0x2b0 [ 84.906439][ T45] jbd2__journal_start+0x13d/0x6e0 [ 84.911535][ T45] __ext4_journal_start_sb+0xfb/0x2b0 [ 84.916897][ T45] ext4_writepages+0xe41/0x30a0 [ 84.921743][ T45] ? ext4_readpage+0x220/0x220 [ 84.926499][ T45] ? __local_bh_enable_ip+0x58/0x80 [ 84.931684][ T45] ? local_bh_enable+0x1f/0x30 [ 84.936441][ T45] ? __dev_queue_xmit+0x1946/0x2d60 [ 84.941629][ T45] ? __kasan_check_write+0x14/0x20 [ 84.946727][ T45] ? ext4_readpage+0x220/0x220 [ 84.951479][ T45] do_writepages+0x476/0x6d0 [ 84.956061][ T45] ? __local_bh_enable_ip+0x58/0x80 [ 84.961276][ T45] ? local_bh_enable+0x1f/0x30 [ 84.966027][ T45] ? ip6_finish_output2+0x10d7/0x1790 [ 84.971386][ T45] ? __writepage+0x130/0x130 [ 84.975966][ T45] ? __kasan_check_write+0x14/0x20 [ 84.981070][ T45] ? __kasan_check_write+0x14/0x20 [ 84.986264][ T45] ? _raw_spin_lock+0x94/0xf0 [ 84.990931][ T45] __writeback_single_inode+0xd9/0x9e0 [ 84.996380][ T45] ? wbc_attach_and_unlock_inode+0x194/0x5f0 [ 85.002355][ T45] writeback_sb_inodes+0x9f3/0x1610 [ 85.007562][ T45] ? queue_io+0x4b0/0x4b0 [ 85.011888][ T45] ? down_read_trylock+0x317/0x630 [ 85.017001][ T45] __writeback_inodes_wb+0x127/0x400 [ 85.022276][ T45] wb_writeback+0x3ff/0x990 [ 85.026770][ T45] ? inode_cgwb_move_to_attached+0x3b0/0x3b0 [ 85.032738][ T45] ? set_worker_desc+0x1ba/0x1f0 [ 85.037668][ T45] ? __kasan_check_write+0x14/0x20 [ 85.042769][ T45] ? cpumask_next+0x7c/0xa0 [ 85.047282][ T45] wb_workfn+0xa49/0xf30 [ 85.051543][ T45] ? inode_wait_for_writeback+0x220/0x220 [ 85.057252][ T45] ? compat_start_thread+0x20/0x20 [ 85.062350][ T45] ? finish_task_switch+0x16b/0x790 [ 85.067536][ T45] ? switch_mm_irqs_off+0x730/0x960 [ 85.072724][ T45] ? __schedule+0xbd7/0x14a0 [ 85.077304][ T45] process_one_work+0x6c8/0xbb0 [ 85.082145][ T45] worker_thread+0xaa0/0x1250 [ 85.086818][ T45] kthread+0x3f5/0x4f0 [ 85.090871][ T45] ? worker_clr_flags+0x190/0x190 [ 85.095883][ T45] ? kthread_blkcg+0xd0/0xd0 [ 85.100465][ T45] ret_from_fork+0x1f/0x30 [ 85.104871][ T45] [ 85.107885][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 85.114861][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 85.124929][ T2] Call Trace: [ 85.128202][ T2] [ 85.131118][ T2] __dump_stack+0x21/0x30 [ 85.135441][ T2] dump_stack_lvl+0x110/0x170 [ 85.140110][ T2] ? show_regs_print_info+0x20/0x20 [ 85.145297][ T2] ? prandom_u32+0x24d/0x290 [ 85.149879][ T2] dump_stack+0x15/0x20 [ 85.154021][ T2] should_fail+0x3ab/0x500 [ 85.158427][ T2] __should_failslab+0xa4/0xe0 [ 85.163181][ T2] should_failslab+0x9/0x20 [ 85.167677][ T2] slab_pre_alloc_hook+0x39/0xd0 [ 85.172602][ T2] ? copy_signal+0x53/0x5f0 [ 85.177095][ T2] kmem_cache_alloc+0x44/0x260 [ 85.181848][ T2] ? memcpy+0x56/0x70 [ 85.185821][ T2] copy_signal+0x53/0x5f0 [ 85.190135][ T2] copy_process+0x1158/0x3280 [ 85.194806][ T2] ? __pidfd_prepare+0x150/0x150 [ 85.199735][ T2] ? __switch_to+0x56c/0x1070 [ 85.204402][ T2] kernel_clone+0x233/0x960 [ 85.208894][ T2] ? create_io_thread+0x170/0x170 [ 85.213924][ T2] ? finish_task_switch+0x16b/0x790 [ 85.219116][ T2] ? kthread_blkcg+0xd0/0xd0 [ 85.223694][ T2] kernel_thread+0xfe/0x170 [ 85.228188][ T2] ? ptrace_event_pid+0x180/0x180 [ 85.233201][ T2] ? kthread_blkcg+0xd0/0xd0 [ 85.237778][ T2] ? _raw_spin_trylock_bh+0x150/0x150 [ 85.243175][ T2] ? __kasan_check_read+0x11/0x20 [ 85.248191][ T2] kthreadd+0x346/0x480 [ 85.252338][ T2] ? tokenize_frame_descr+0x93/0xc0 [ 85.257528][ T2] ? kthread_stop+0x3e0/0x3e0 [ 85.262191][ T2] ? _raw_spin_unlock_irq+0x4e/0x70 [ 85.267375][ T2] ? calculate_sigpending+0x7c/0x90 [ 85.272562][ T2] ? kthread_stop+0x3e0/0x3e0 [ 85.277224][ T2] ret_from_fork+0x1f/0x30 [ 85.281633][ T2] [ 85.284640][ T139] CPU: 1 PID: 139 Comm: dhcpcd Not tainted syzkaller #0 [ 85.284757][ T6] FAULT_INJECTION: forcing a failure. [ 85.284757][ T6] name failslab, interval 1, probability 10, space 0, times 49 [ 85.291578][ T139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 85.291588][ T139] Call Trace: [ 85.291593][ T139] [ 85.291599][ T139] __dump_stack+0x21/0x30 [ 85.324842][ T139] dump_stack_lvl+0x110/0x170 [ 85.329517][ T139] ? show_regs_print_info+0x20/0x20 [ 85.334701][ T139] ? prandom_u32+0x24d/0x290 [ 85.339282][ T139] dump_stack+0x15/0x20 [ 85.343422][ T139] should_fail+0x3ab/0x500 [ 85.347827][ T139] ? alloc_skb_with_frags+0xa8/0x620 [ 85.353099][ T139] __should_failslab+0xa4/0xe0 [ 85.357854][ T139] should_failslab+0x9/0x20 [ 85.362350][ T139] slab_pre_alloc_hook+0x39/0xd0 [ 85.367275][ T139] ? alloc_skb_with_frags+0xa8/0x620 [ 85.372550][ T139] ? alloc_skb_with_frags+0xa8/0x620 [ 85.377825][ T139] __kmalloc_track_caller+0x6c/0x2c0 [ 85.383099][ T139] ? alloc_skb_with_frags+0xa8/0x620 [ 85.388372][ T139] ? alloc_skb_with_frags+0xa8/0x620 [ 85.393648][ T139] __alloc_skb+0x210/0x730 [ 85.398057][ T139] alloc_skb_with_frags+0xa8/0x620 [ 85.403157][ T139] ? avc_has_perm_noaudit+0x390/0x490 [ 85.408522][ T139] sock_alloc_send_pskb+0x87f/0x9a0 [ 85.413710][ T139] ? avc_denied+0x1b0/0x1b0 [ 85.418203][ T139] ? sock_kzfree_s+0x60/0x60 [ 85.422780][ T139] ? __kasan_check_write+0x14/0x20 [ 85.427878][ T139] ? _raw_spin_lock+0x94/0xf0 [ 85.432546][ T139] ? _raw_spin_trylock_bh+0x150/0x150 [ 85.437904][ T139] ? avc_has_perm+0x163/0x250 [ 85.442693][ T139] unix_dgram_sendmsg+0x6f3/0x19b0 [ 85.447800][ T139] ? selinux_socket_sendmsg+0x22f/0x340 [ 85.453432][ T139] ? selinux_socket_accept+0x570/0x570 [ 85.458884][ T139] ? unix_dgram_poll+0x6c0/0x6c0 [ 85.463814][ T139] unix_seqpacket_sendmsg+0x118/0x1e0 [ 85.469176][ T139] sock_write_iter+0x2a6/0x3a0 [ 85.473930][ T139] ? sock_read_iter+0x380/0x380 [ 85.478768][ T139] ? memset+0x35/0x40 [ 85.482738][ T139] ? iov_iter_init+0xbc/0x180 [ 85.487403][ T139] vfs_write+0x831/0xfd0 [ 85.491630][ T139] ? file_end_write+0x1b0/0x1b0 [ 85.496464][ T139] ? __secure_computing+0x290/0x290 [ 85.501650][ T139] ? __kasan_check_read+0x11/0x20 [ 85.506663][ T139] ? __fdget_pos+0x1f7/0x380 [ 85.511245][ T139] ksys_write+0x14a/0x260 [ 85.515561][ T139] ? __ia32_sys_read+0x90/0x90 [ 85.520310][ T139] ? __secure_computing+0xea/0x290 [ 85.525413][ T139] __x64_sys_write+0x7b/0x90 [ 85.530000][ T139] x64_sys_call+0x8ef/0x9a0 [ 85.534512][ T139] do_syscall_64+0x4c/0xa0 [ 85.538920][ T139] ? clear_bhb_loop+0x50/0xa0 [ 85.543581][ T139] ? clear_bhb_loop+0x50/0xa0 [ 85.548242][ T139] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.554123][ T139] RIP: 0033:0x7fbcbf742407 [ 85.558528][ T139] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 85.578122][ T139] RSP: 002b:00007ffec1308480 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 85.586523][ T139] RAX: ffffffffffffffda RBX: 00007fbcbf6b8740 RCX: 00007fbcbf742407 [ 85.594484][ T139] RDX: 0000000000000046 RSI: 00007ffec13084e0 RDI: 0000000000000005 [ 85.602445][ T139] RBP: 0000560fc07e6a48 R08: 0000000000000000 R09: 0000000000000000 [ 85.610403][ T139] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec1308910 [ 85.618360][ T139] R13: 000000000000f69e R14: 0000000000000001 R15: 0000000000000001 [ 85.626320][ T139] [ 85.629325][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0 [ 85.636522][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 85.646565][ T6] Workqueue: ipv6_addrconf addrconf_dad_work [ 85.652538][ T6] Call Trace: [ 85.655803][ T6] [ 85.658721][ T6] __dump_stack+0x21/0x30 [ 85.663038][ T6] dump_stack_lvl+0x110/0x170 [ 85.667704][ T6] ? show_regs_print_info+0x20/0x20 [ 85.672888][ T6] ? prandom_u32+0x24d/0x290 [ 85.677465][ T6] dump_stack+0x15/0x20 [ 85.681607][ T6] should_fail+0x3ab/0x500 [ 85.686038][ T6] __should_failslab+0xa4/0xe0 [ 85.690791][ T6] should_failslab+0x9/0x20 [ 85.695282][ T6] slab_pre_alloc_hook+0x39/0xd0 [ 85.700208][ T6] ? fib6_add+0x92d/0x3d70 [ 85.704614][ T6] kmem_cache_alloc+0x44/0x260 [ 85.709369][ T6] fib6_add+0x92d/0x3d70 [ 85.713606][ T6] ? fib6_update_sernum_stub+0x190/0x190 [ 85.719224][ T6] ? __kasan_check_write+0x14/0x20 [ 85.724586][ T6] ? _raw_spin_lock_bh+0x94/0xf0 [ 85.729534][ T6] ? _raw_spin_lock_irq+0xf0/0xf0 [ 85.734589][ T6] ip6_ins_rt+0xd3/0x130 [ 85.738822][ T6] ? rt6_lookup+0x220/0x220 [ 85.743314][ T6] ? rtnl_notify+0x9a/0xc0 [ 85.747723][ T6] __ipv6_ifa_notify+0x4df/0xe70 [ 85.752651][ T6] ? inet6_fill_ifla6_attrs+0x25b0/0x25b0 [ 85.758361][ T6] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 85.765117][ T6] ? __kasan_check_write+0x14/0x20 [ 85.770219][ T6] ? try_to_grab_pending+0x1a4/0x580 [ 85.775580][ T6] ? timer_update_keys+0xb0/0xb0 [ 85.780507][ T6] ? mod_delayed_work_on+0xe0/0xe0 [ 85.785613][ T6] ? get_nohz_timer_target+0x7a/0x550 [ 85.790979][ T6] ? ip6_output+0x410/0x410 [ 85.795472][ T6] ? __kasan_check_write+0x14/0x20 [ 85.800571][ T6] ? __cancel_work+0x198/0x200 [ 85.805324][ T6] addrconf_dad_completed+0x182/0xe20 [ 85.810711][ T6] ? __kasan_check_write+0x14/0x20 [ 85.815814][ T6] ? addrconf_dad_stop+0x440/0x440 [ 85.820915][ T6] addrconf_dad_work+0xc4c/0x1510 [ 85.825931][ T6] ? ipv6_get_saddr_eval+0xf70/0xf70 [ 85.831207][ T6] ? __kasan_check_write+0x14/0x20 [ 85.836309][ T6] ? _raw_spin_lock_irq+0x95/0xf0 [ 85.841324][ T6] ? _raw_spin_lock_irqsave+0x130/0x130 [ 85.846867][ T6] process_one_work+0x6c8/0xbb0 [ 85.851711][ T6] worker_thread+0xaa0/0x1250 [ 85.856402][ T6] kthread+0x3f5/0x4f0 [ 85.860462][ T6] ? worker_clr_flags+0x190/0x190 [ 85.863049][ T1] FAULT_INJECTION: forcing a failure. [ 85.863049][ T1] name failslab, interval 1, probability 10, space 0, times 48 [ 85.865480][ T6] ? kthread_blkcg+0xd0/0xd0 [ 85.882803][ T6] ret_from_fork+0x1f/0x30 [ 85.887223][ T6] [ 85.890230][ T184] CPU: 1 PID: 184 Comm: crond Not tainted syzkaller #0 [ 85.897073][ T184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 85.907116][ T184] Call Trace: [ 85.910406][ T184] [ 85.913322][ T184] __dump_stack+0x21/0x30 [ 85.917640][ T184] dump_stack_lvl+0x110/0x170 [ 85.922297][ T184] ? show_regs_print_info+0x20/0x20 [ 85.927478][ T184] dump_stack+0x15/0x20 [ 85.931626][ T184] should_fail+0x3ab/0x500 [ 85.936034][ T184] __should_failslab+0xa4/0xe0 [ 85.940802][ T184] should_failslab+0x9/0x20 [ 85.945294][ T184] slab_pre_alloc_hook+0x39/0xd0 [ 85.950221][ T184] ? getname_flags+0xba/0x510 [ 85.954904][ T184] kmem_cache_alloc+0x44/0x260 [ 85.959656][ T184] getname_flags+0xba/0x510 [ 85.964146][ T184] getname+0x19/0x20 [ 85.968109][ T184] do_sys_openat2+0xeb/0x7f0 [ 85.972681][ T184] ? __kasan_check_write+0x14/0x20 [ 85.977775][ T184] ? lockref_put_return+0xca/0xe0 [ 85.982781][ T184] ? do_sys_open+0xe0/0xe0 [ 85.987270][ T184] ? mntput+0x5f/0xc0 [ 85.991232][ T184] ? path_put+0x57/0x60 [ 85.995369][ T184] ? __se_sys_chdir+0x1af/0x280 [ 86.000321][ T184] __x64_sys_openat+0x136/0x160 [ 86.005173][ T184] x64_sys_call+0x219/0x9a0 [ 86.009674][ T184] do_syscall_64+0x4c/0xa0 [ 86.014086][ T184] ? clear_bhb_loop+0x50/0xa0 [ 86.018745][ T184] ? clear_bhb_loop+0x50/0xa0 [ 86.023402][ T184] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.029276][ T184] RIP: 0033:0x7f2551182c3a [ 86.033676][ T184] Code: 41 89 f2 48 89 54 24 e0 41 83 e2 40 75 2a 89 f0 f7 d0 a9 00 00 41 00 74 1f 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 2e c3 0f 1f 44 00 00 48 8d 44 24 08 c7 44 24 [ 86.053266][ T184] RSP: 002b:00007ffcea02dbd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 [ 86.061664][ T184] RAX: ffffffffffffffda RBX: 00007f255132e490 RCX: 00007f2551182c3a [ 86.069620][ T184] RDX: 0000000000090800 RSI: 00007f255130da4b RDI: 00000000ffffff9c [ 86.077587][ T184] RBP: 000000006a678404 R08: 0000000000000000 R09: 0000000000000000 [ 86.085545][ T184] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 86.093522][ T184] R13: 000000000000003c R14: 0000000000000000 R15: 000000000000003c [ 86.101483][ T184] [ 86.104566][ T1] CPU: 0 PID: 1 Comm: init Not tainted syzkaller #0 [ 86.111155][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 86.121208][ T1] Call Trace: [ 86.124652][ T1] [ 86.127582][ T1] __dump_stack+0x21/0x30 [ 86.131912][ T1] dump_stack_lvl+0x110/0x170 [ 86.136584][ T1] ? show_regs_print_info+0x20/0x20 [ 86.141770][ T1] ? prandom_u32+0x24d/0x290 [ 86.146350][ T1] dump_stack+0x15/0x20 [ 86.150508][ T1] should_fail+0x3ab/0x500 [ 86.154937][ T1] __should_failslab+0xa4/0xe0 [ 86.159696][ T1] should_failslab+0x9/0x20 [ 86.164190][ T1] slab_pre_alloc_hook+0x39/0xd0 [ 86.169118][ T1] ? prepare_creds+0x2f/0x610 [ 86.173785][ T1] kmem_cache_alloc+0x44/0x260 [ 86.178540][ T1] prepare_creds+0x2f/0x610 [ 86.183034][ T1] do_faccessat+0xe8/0x9b0 [ 86.187442][ T1] ? stream_open+0x60/0x60 [ 86.191845][ T1] ? debug_smp_processor_id+0x17/0x20 [ 86.197214][ T1] __x64_sys_access+0x61/0x70 [ 86.201881][ T1] x64_sys_call+0x78a/0x9a0 [ 86.206373][ T1] do_syscall_64+0x4c/0xa0 [ 86.210776][ T1] ? clear_bhb_loop+0x50/0xa0 [ 86.215443][ T1] ? clear_bhb_loop+0x50/0xa0 [ 86.220106][ T1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.225986][ T1] RIP: 0033:0x7ff91522c2c7 [ 86.230393][ T1] Code: 0f 1f 00 8b 87 10 01 00 00 89 06 31 c0 c3 0f 1f 44 00 00 89 b7 10 01 00 00 31 c0 c3 0f 1f 80 00 00 00 00 b8 15 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 01 fb 0d 00 f7 d8 64 89 02 b8 [ 86.249986][ T1] RSP: 002b:00007ffc4b5e5818 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 86.258390][ T1] RAX: ffffffffffffffda RBX: 00007ff9152d00b7 RCX: 00007ff91522c2c7 [ 86.266350][ T1] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00007ff9152d00b7 [ 86.274309][ T1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 86.282377][ T1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.290348][ T1] R13: 0000000000000000 R14: 000000000000005a R15: 0000555e0e4b1d98 [ 86.298313][ T1] [ 86.301320][ T309] CPU: 1 PID: 309 Comm: udevd Not tainted syzkaller #0 [ 86.301490][ T45] EXT4-fs (sda1): ext4_writepages: jbd2_start: 13312 pages, ino 2021; err -12 [ 86.308166][ T309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 86.317109][ T2] FAULT_INJECTION: forcing a failure. [ 86.317109][ T2] name failslab, interval 1, probability 10, space 0, times 44 [ 86.327024][ T309] Call Trace: [ 86.327031][ T309] [ 86.327038][ T309] __dump_stack+0x21/0x30 [ 86.350248][ T309] dump_stack_lvl+0x110/0x170 [ 86.354943][ T309] ? show_regs_print_info+0x20/0x20 [ 86.360131][ T309] ? prandom_u32+0x24d/0x290 [ 86.364710][ T309] dump_stack+0x15/0x20 [ 86.368852][ T309] should_fail+0x3ab/0x500 [ 86.373260][ T309] __should_failslab+0xa4/0xe0 [ 86.378020][ T309] should_failslab+0x9/0x20 [ 86.382511][ T309] slab_pre_alloc_hook+0x39/0xd0 [ 86.387440][ T309] ? __alloc_file+0x28/0x2a0 [ 86.392015][ T309] kmem_cache_alloc+0x44/0x260 [ 86.396770][ T309] __alloc_file+0x28/0x2a0 [ 86.401175][ T309] alloc_empty_file+0x97/0x180 [ 86.405928][ T309] path_openat+0xf4/0x2f80 [ 86.410336][ T309] ? __stack_depot_save+0x34/0x480 [ 86.415436][ T309] ? __kasan_slab_alloc+0xc9/0xe0 [ 86.420444][ T309] ? __kasan_slab_alloc+0xb7/0xe0 [ 86.425450][ T309] ? slab_post_alloc_hook+0x4f/0x2b0 [ 86.430720][ T309] ? kmem_cache_alloc+0xf7/0x260 [ 86.435641][ T309] ? getname_flags+0xba/0x510 [ 86.440311][ T309] ? getname+0x19/0x20 [ 86.444361][ T309] ? do_sys_openat2+0xeb/0x7f0 [ 86.449106][ T309] ? __x64_sys_openat+0x136/0x160 [ 86.454114][ T309] ? x64_sys_call+0x219/0x9a0 [ 86.458775][ T309] ? do_syscall_64+0x4c/0xa0 [ 86.463344][ T309] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.469398][ T309] ? do_filp_open+0x400/0x400 [ 86.474058][ T309] do_filp_open+0x1df/0x400 [ 86.478546][ T309] ? vfs_tmpfile+0x2d0/0x2d0 [ 86.483124][ T309] do_sys_openat2+0x15e/0x7f0 [ 86.487782][ T309] ? blkdev_ioctl+0x517/0x660 [ 86.492442][ T309] ? do_sys_open+0xe0/0xe0 [ 86.496843][ T309] ? block_ioctl+0xaf/0x100 [ 86.501330][ T309] __x64_sys_openat+0x136/0x160 [ 86.506163][ T309] x64_sys_call+0x219/0x9a0 [ 86.510650][ T309] do_syscall_64+0x4c/0xa0 [ 86.515045][ T309] ? clear_bhb_loop+0x50/0xa0 [ 86.519702][ T309] ? clear_bhb_loop+0x50/0xa0 [ 86.524359][ T309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.530238][ T309] RIP: 0033:0x7f34aaa99407 [ 86.534641][ T309] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 86.554230][ T309] RSP: 002b:00007ffcef88c460 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 86.562627][ T309] RAX: ffffffffffffffda RBX: 00007f34aa9ab880 RCX: 00007f34aaa99407 [ 86.570587][ T309] RDX: 0000000000080000 RSI: 0000556f41eedb30 RDI: ffffffffffffff9c [ 86.578542][ T309] RBP: 0000556f41eedb30 R08: 0000000000000000 R09: 0000000000000000 [ 86.586493][ T309] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 86.594444][ T309] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000009 [ 86.602400][ T309] [ 86.605422][ T2] CPU: 0 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 86.612362][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 86.622405][ T2] Call Trace: [ 86.625673][ T2] [ 86.628589][ T2] __dump_stack+0x21/0x30 [ 86.632909][ T2] dump_stack_lvl+0x110/0x170 [ 86.637592][ T2] ? show_regs_print_info+0x20/0x20 [ 86.641196][ T300] FAULT_INJECTION: forcing a failure. [ 86.641196][ T300] name failslab, interval 1, probability 10, space 0, times 43 [ 86.642775][ T2] ? prandom_u32+0x24d/0x290 [ 86.660098][ T2] dump_stack+0x15/0x20 [ 86.664251][ T2] should_fail+0x3ab/0x500 [ 86.668658][ T2] __should_failslab+0xa4/0xe0 [ 86.673414][ T2] should_failslab+0x9/0x20 [ 86.677907][ T2] slab_pre_alloc_hook+0x39/0xd0 [ 86.682836][ T2] ? copy_sighand+0x54/0x220 [ 86.687416][ T2] kmem_cache_alloc+0x44/0x260 [ 86.692171][ T2] copy_sighand+0x54/0x220 [ 86.696599][ T2] ? copy_process+0x110b/0x3280 [ 86.701443][ T2] copy_process+0x112c/0x3280 [ 86.706121][ T2] ? __pidfd_prepare+0x150/0x150 [ 86.711050][ T2] kernel_clone+0x233/0x960 [ 86.715544][ T2] ? create_io_thread+0x170/0x170 [ 86.720558][ T2] ? kthread_blkcg+0xd0/0xd0 [ 86.725137][ T2] kernel_thread+0xfe/0x170 [ 86.729632][ T2] ? ptrace_event_pid+0x180/0x180 [ 86.731301][ T1] FAULT_INJECTION: forcing a failure. [ 86.731301][ T1] name failslab, interval 1, probability 10, space 0, times 42 [ 86.734642][ T2] ? kthread_blkcg+0xd0/0xd0 [ 86.751948][ T2] ? _raw_spin_trylock_bh+0x150/0x150 [ 86.757321][ T2] ? complete+0x69/0xb0 [ 86.761473][ T2] kthreadd+0x346/0x480 [ 86.765623][ T2] ? tokenize_frame_descr+0x93/0xc0 [ 86.770812][ T2] ? kthread_stop+0x3e0/0x3e0 [ 86.775490][ T2] ? _raw_spin_unlock_irq+0x4e/0x70 [ 86.780701][ T2] ? calculate_sigpending+0x7c/0x90 [ 86.785889][ T2] ? kthread_stop+0x3e0/0x3e0 [ 86.790656][ T2] ret_from_fork+0x1f/0x30 [ 86.795067][ T2] [ 86.798079][ T64] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0 [ 86.805362][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 86.815492][ T64] Call Trace: [ 86.818757][ T64] [ 86.821669][ T64] __dump_stack+0x21/0x30 [ 86.825985][ T64] dump_stack_lvl+0x110/0x170 [ 86.830640][ T64] ? show_regs_print_info+0x20/0x20 [ 86.835818][ T64] ? prandom_u32+0x24d/0x290 [ 86.840392][ T64] dump_stack+0x15/0x20 [ 86.844527][ T64] should_fail+0x3ab/0x500 [ 86.848926][ T64] __should_failslab+0xa4/0xe0 [ 86.853704][ T64] should_failslab+0x9/0x20 [ 86.858191][ T64] slab_pre_alloc_hook+0x39/0xd0 [ 86.863117][ T64] ? mempool_alloc_slab+0x1d/0x30 [ 86.868128][ T64] kmem_cache_alloc+0x44/0x260 [ 86.872877][ T64] ? submit_bio_noacct+0x762/0x800 [ 86.877975][ T64] ? mempool_free+0x330/0x330 [ 86.882635][ T64] mempool_alloc_slab+0x1d/0x30 [ 86.887468][ T64] mempool_alloc+0x167/0x4c0 [ 86.892040][ T64] ? chksum_update+0x47/0xa0 [ 86.896615][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0 [ 86.902414][ T64] ? crypto_shash_update+0x216/0x300 [ 86.907683][ T64] ? mempool_resize+0x880/0x880 [ 86.912515][ T64] ? blkcg_set_ioprio+0x1f6/0x320 [ 86.917522][ T64] ? submit_bio+0x367/0x620 [ 86.922007][ T64] ? submit_bio_noacct+0x800/0x800 [ 86.927113][ T64] bio_alloc_bioset+0x124/0x910 [ 86.931952][ T64] submit_bh_wbc+0x1c2/0x680 [ 86.936528][ T64] submit_bh+0x2a/0x40 [ 86.940580][ T64] jbd2_journal_commit_transaction+0x2461/0x5650 [ 86.946896][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 86.953641][ T64] ? __switch_to+0x56c/0x1070 [ 86.958303][ T64] ? compat_start_thread+0x20/0x20 [ 86.963400][ T64] ? _raw_spin_unlock+0x4d/0x70 [ 86.968243][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 86.972907][ T64] ? __kasan_check_write+0x14/0x20 [ 86.978006][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 86.983453][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 86.988156][ T64] ? detach_if_pending+0xf5/0x300 [ 86.993169][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 86.998955][ T64] ? del_timer_sync+0x144/0x1a0 [ 87.003787][ T64] kjournald2+0x43d/0x860 [ 87.008100][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 87.013276][ T64] ? io_schedule+0xe0/0xe0 [ 87.017677][ T64] ? __kasan_check_read+0x11/0x20 [ 87.022685][ T64] ? __kthread_parkme+0xab/0x1f0 [ 87.027605][ T64] kthread+0x3f5/0x4f0 [ 87.031670][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 87.036856][ T64] ? kthread_blkcg+0xd0/0xd0 [ 87.041437][ T64] ret_from_fork+0x1f/0x30 [ 87.045840][ T64] [ 87.049167][ T140] FAULT_INJECTION: forcing a failure. [ 87.049167][ T140] name failslab, interval 1, probability 10, space 0, times 40 [ 87.050221][ T315] FAULT_INJECTION: forcing a failure. [ 87.050221][ T315] name failslab, interval 1, probability 10, space 0, times 40 [ 87.071152][ T300] CPU: 1 PID: 300 Comm: syz-executor Not tainted syzkaller #0 [ 87.082177][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 87.092257][ T300] Call Trace: [ 87.095541][ T300] [ 87.098474][ T300] __dump_stack+0x21/0x30 [ 87.102802][ T300] dump_stack_lvl+0x110/0x170 [ 87.107466][ T300] ? show_regs_print_info+0x20/0x20 [ 87.112653][ T300] ? prandom_u32+0x24d/0x290 [ 87.117233][ T300] dump_stack+0x15/0x20 [ 87.121375][ T300] should_fail+0x3ab/0x500 [ 87.125782][ T300] ? __tcp_send_ack+0x9b/0x6c0 [ 87.130533][ T300] __should_failslab+0xa4/0xe0 [ 87.135287][ T300] should_failslab+0x9/0x20 [ 87.139778][ T300] slab_pre_alloc_hook+0x39/0xd0 [ 87.144701][ T300] ? __tcp_send_ack+0x9b/0x6c0 [ 87.149457][ T300] ? __tcp_send_ack+0x9b/0x6c0 [ 87.154212][ T300] __kmalloc_track_caller+0x6c/0x2c0 [ 87.159488][ T300] ? __tcp_send_ack+0x9b/0x6c0 [ 87.164239][ T300] ? __tcp_send_ack+0x9b/0x6c0 [ 87.169013][ T300] __alloc_skb+0x210/0x730 [ 87.173423][ T300] __tcp_send_ack+0x9b/0x6c0 [ 87.178003][ T300] tcp_send_ack+0x3b/0x60 [ 87.182321][ T300] tcp_send_dupack+0xca/0x860 [ 87.186989][ T300] tcp_validate_incoming+0x1946/0x2810 [ 87.192451][ T300] ? sk_stream_wait_close+0x430/0x430 [ 87.197818][ T300] ? wait_woken+0x170/0x170 [ 87.202309][ T300] ? __tcp_ack_snd_check+0x900/0x900 [ 87.207606][ T300] ? tcp_chrono_stop+0x2a5/0x480 [ 87.212537][ T300] ? ktime_get+0x12f/0x160 [ 87.216942][ T300] tcp_rcv_established+0x9fc/0x1ad0 [ 87.222131][ T300] ? tcp_check_space+0x960/0x960 [ 87.227059][ T300] ? ipv4_dst_check+0xf2/0x160 [ 87.231821][ T300] tcp_v4_do_rcv+0x591/0x9f0 [ 87.236399][ T300] __release_sock+0x17c/0x3f0 [ 87.241080][ T300] release_sock+0x60/0x1b0 [ 87.245501][ T300] tcp_sendmsg+0x39/0x50 [ 87.249745][ T300] inet_sendmsg+0xa5/0xc0 [ 87.254066][ T300] sock_write_iter+0x2a6/0x3a0 [ 87.258830][ T300] ? sock_read_iter+0x380/0x380 [ 87.263690][ T300] ? memset+0x35/0x40 [ 87.267676][ T300] ? iov_iter_init+0xbc/0x180 [ 87.272358][ T300] vfs_write+0x831/0xfd0 [ 87.276590][ T300] ? _copy_from_user+0x95/0xd0 [ 87.281348][ T300] ? file_end_write+0x1b0/0x1b0 [ 87.286188][ T300] ? __kasan_check_read+0x11/0x20 [ 87.291198][ T300] ? __fdget_pos+0x1f7/0x380 [ 87.295788][ T300] ksys_write+0x14a/0x260 [ 87.300105][ T300] ? __ia32_sys_read+0x90/0x90 [ 87.304865][ T300] ? debug_smp_processor_id+0x17/0x20 [ 87.310243][ T300] __x64_sys_write+0x7b/0x90 [ 87.314830][ T300] x64_sys_call+0x8ef/0x9a0 [ 87.319331][ T300] do_syscall_64+0x4c/0xa0 [ 87.323733][ T300] ? clear_bhb_loop+0x50/0xa0 [ 87.328395][ T300] ? clear_bhb_loop+0x50/0xa0 [ 87.333057][ T300] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.338938][ T300] RIP: 0033:0x7eff70a5d017 [ 87.343342][ T300] Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 87.362936][ T300] RSP: 002b:00007ffe50610840 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 87.371339][ T300] RAX: ffffffffffffffda RBX: 000055558b938500 RCX: 00007eff70a5d017 [ 87.379305][ T300] RDX: 00000000000000a8 RSI: 00007eff70503f58 RDI: 0000000000000003 [ 87.387293][ T300] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 87.395270][ T300] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000000a8 [ 87.403242][ T300] R13: 000055558b94c8f0 R14: 00007ffe50610e20 R15: 00007eff70503f58 [ 87.411234][ T300] [ 87.414263][ T315] CPU: 0 PID: 315 Comm: kworker/0:2 Not tainted syzkaller #0 [ 87.421647][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 87.431703][ T315] Workqueue: ipv6_addrconf addrconf_dad_work [ 87.437700][ T315] Call Trace: [ 87.440976][ T315] [ 87.443911][ T315] __dump_stack+0x21/0x30 [ 87.448259][ T315] dump_stack_lvl+0x110/0x170 [ 87.453035][ T315] ? show_regs_print_info+0x20/0x20 [ 87.458235][ T315] ? prandom_u32+0x24d/0x290 [ 87.462819][ T315] dump_stack+0x15/0x20 [ 87.467082][ T315] should_fail+0x3ab/0x500 [ 87.471489][ T315] __should_failslab+0xa4/0xe0 [ 87.476244][ T315] should_failslab+0x9/0x20 [ 87.480736][ T315] slab_pre_alloc_hook+0x39/0xd0 [ 87.485664][ T315] ? fib6_add+0x9a0/0x3d70 [ 87.490069][ T315] kmem_cache_alloc+0x44/0x260 [ 87.491201][ T184] FAULT_INJECTION: forcing a failure. [ 87.491201][ T184] name failslab, interval 1, probability 10, space 0, times 39 [ 87.494823][ T315] fib6_add+0x9a0/0x3d70 [ 87.511792][ T315] ? fib6_update_sernum_stub+0x190/0x190 [ 87.517435][ T315] ? __kasan_check_write+0x14/0x20 [ 87.522539][ T315] ? _raw_spin_lock_bh+0x94/0xf0 [ 87.527480][ T315] ? _raw_spin_lock_irq+0xf0/0xf0 [ 87.532521][ T315] ip6_ins_rt+0xd3/0x130 [ 87.536772][ T315] ? rt6_lookup+0x220/0x220 [ 87.541274][ T315] ? rtnl_notify+0x9a/0xc0 [ 87.545745][ T315] __ipv6_ifa_notify+0x4df/0xe70 [ 87.550706][ T315] ? inet6_fill_ifla6_attrs+0x25b0/0x25b0 [ 87.556420][ T315] ? kasan_record_aux_stack_noalloc+0xb/0x10 [ 87.562482][ T315] ? call_rcu+0x10b/0xf60 [ 87.566804][ T315] ? process_one_work+0x6c8/0xbb0 [ 87.571822][ T315] ? kthread+0x3f5/0x4f0 [ 87.576058][ T315] ? ret_from_fork+0x1f/0x30 [ 87.580641][ T315] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 87.587482][ T315] ? __kasan_check_write+0x14/0x20 [ 87.592592][ T315] ? try_to_grab_pending+0x1a4/0x580 [ 87.597890][ T315] ? mod_delayed_work_on+0xe0/0xe0 [ 87.602997][ T315] ? __kasan_check_write+0x14/0x20 [ 87.608104][ T315] ? __cancel_work+0x198/0x200 [ 87.612861][ T315] addrconf_dad_completed+0x182/0xe20 [ 87.618231][ T315] ? __kasan_check_write+0x14/0x20 [ 87.623349][ T315] ? addrconf_dad_stop+0x440/0x440 [ 87.628454][ T315] addrconf_dad_work+0xc4c/0x1510 [ 87.633471][ T315] ? ipv6_get_saddr_eval+0xf70/0xf70 [ 87.638747][ T315] ? __kasan_check_write+0x14/0x20 [ 87.643848][ T315] ? _raw_spin_lock_irq+0x95/0xf0 [ 87.648865][ T315] ? _raw_spin_lock_irqsave+0x130/0x130 [ 87.654405][ T315] ? __schedule+0xbd7/0x14a0 [ 87.658990][ T315] process_one_work+0x6c8/0xbb0 [ 87.663841][ T315] worker_thread+0xaa0/0x1250 [ 87.668520][ T315] kthread+0x3f5/0x4f0 [ 87.672580][ T315] ? worker_clr_flags+0x190/0x190 [ 87.677598][ T315] ? kthread_blkcg+0xd0/0xd0 [ 87.682193][ T315] ret_from_fork+0x1f/0x30 [ 87.686610][ T315] [ 87.689794][ T184] CPU: 1 PID: 184 Comm: crond Not tainted syzkaller #0 [ 87.696649][ T184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 87.706690][ T184] Call Trace: [ 87.709955][ T184] [ 87.712869][ T184] __dump_stack+0x21/0x30 [ 87.717186][ T184] dump_stack_lvl+0x110/0x170 [ 87.721877][ T184] ? show_regs_print_info+0x20/0x20 [ 87.727058][ T184] ? prandom_u32+0x24d/0x290 [ 87.731635][ T184] dump_stack+0x15/0x20 [ 87.735777][ T184] should_fail+0x3ab/0x500 [ 87.740180][ T184] __should_failslab+0xa4/0xe0 [ 87.744938][ T184] should_failslab+0x9/0x20 [ 87.749427][ T184] slab_pre_alloc_hook+0x39/0xd0 [ 87.754349][ T184] ? __alloc_skb+0xe4/0x730 [ 87.758840][ T184] kmem_cache_alloc+0x44/0x260 [ 87.763589][ T184] ? __kasan_check_write+0x14/0x20 [ 87.768685][ T184] __alloc_skb+0xe4/0x730 [ 87.773001][ T184] alloc_skb_with_frags+0xa8/0x620 [ 87.778101][ T184] ? memcpy+0x56/0x70 [ 87.782105][ T184] sock_alloc_send_pskb+0x87f/0x9a0 [ 87.787710][ T184] ? sock_kzfree_s+0x60/0x60 [ 87.792305][ T184] ? __kasan_check_write+0x14/0x20 [ 87.797430][ T184] ? _raw_spin_lock+0x94/0xf0 [ 87.802105][ T184] ? _raw_spin_trylock_bh+0x150/0x150 [ 87.807465][ T184] unix_dgram_sendmsg+0x6f3/0x19b0 [ 87.812575][ T184] ? unix_dgram_poll+0x6c0/0x6c0 [ 87.817498][ T184] ? security_socket_sendmsg+0x82/0xa0 [ 87.822946][ T184] __sys_sendto+0x46d/0x620 [ 87.827442][ T184] ? __ia32_sys_getpeername+0x90/0x90 [ 87.832828][ T184] ? lockref_put_return+0xca/0xe0 [ 87.837844][ T184] ? path_put+0x57/0x60 [ 87.841995][ T184] __x64_sys_sendto+0xe5/0x100 [ 87.846745][ T184] x64_sys_call+0x178/0x9a0 [ 87.851232][ T184] do_syscall_64+0x4c/0xa0 [ 87.855630][ T184] ? clear_bhb_loop+0x50/0xa0 [ 87.860290][ T184] ? clear_bhb_loop+0x50/0xa0 [ 87.864980][ T184] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.870865][ T184] RIP: 0033:0x7f2551114407 [ 87.875269][ T184] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 87.881203][ C0] FAULT_INJECTION: forcing a failure. [ 87.881203][ C0] name failslab, interval 1, probability 10, space 0, times 38 [ 87.894862][ T184] RSP: 002b:00007ffcea02d3e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 87.894883][ T184] RAX: ffffffffffffffda RBX: 00007f2550fc4c80 RCX: 00007f2551114407 [ 87.923959][ T184] RDX: 0000000000000040 RSI: 00007ffcea02d520 RDI: 0000000000000003 [ 87.931925][ T184] RBP: 00007ffcea02d950 R08: 0000000000000000 R09: 0000000000000000 [ 87.939888][ T184] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffcea02d968 [ 87.947857][ T184] R13: 00007ffcea02d520 R14: 0000000000000020 R15: 00007ffcea02d520 [ 87.955823][ T184] [ 87.958840][ C0] CPU: 0 PID: 266 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 87.966297][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 87.976386][ C0] Workqueue: events_unbound toggle_allocation_gate [ 87.982893][ C0] Call Trace: [ 87.986162][ C0] [ 87.988996][ C0] __dump_stack+0x21/0x30 [ 87.993319][ C0] dump_stack_lvl+0x110/0x170 [ 87.997990][ C0] ? show_regs_print_info+0x20/0x20 [ 88.003265][ C0] ? prandom_u32+0x24d/0x290 [ 88.007860][ C0] dump_stack+0x15/0x20 [ 88.012008][ C0] should_fail+0x3ab/0x500 [ 88.016423][ C0] ? wg_packet_send_keepalive+0x62/0x1c0 [ 88.022051][ C0] __should_failslab+0xa4/0xe0 [ 88.026817][ C0] should_failslab+0x9/0x20 [ 88.031318][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 88.036254][ C0] ? wg_packet_send_keepalive+0x62/0x1c0 [ 88.041880][ C0] ? wg_packet_send_keepalive+0x62/0x1c0 [ 88.047507][ C0] __kmalloc_track_caller+0x6c/0x2c0 [ 88.052790][ C0] ? wg_packet_send_keepalive+0x62/0x1c0 [ 88.058420][ C0] ? wg_packet_send_keepalive+0x62/0x1c0 [ 88.064047][ C0] __alloc_skb+0x210/0x730 [ 88.068461][ C0] wg_packet_send_keepalive+0x62/0x1c0 [ 88.073916][ C0] ? wg_expired_send_persistent_keepalive+0x44/0x80 [ 88.080502][ C0] wg_expired_send_persistent_keepalive+0x53/0x80 [ 88.086913][ C0] ? wg_expired_zero_key_material+0x170/0x170 [ 88.092997][ C0] call_timer_fn+0x38/0x290 [ 88.097504][ C0] ? wg_expired_zero_key_material+0x170/0x170 [ 88.103571][ C0] __run_timers+0x637/0x9a0 [ 88.108085][ C0] ? calc_index+0x200/0x200 [ 88.112586][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 88.117435][ C0] run_timer_softirq+0x6a/0xf0 [ 88.122198][ C0] handle_softirqs+0x250/0x560 [ 88.126969][ C0] ? irqtime_account_irq+0xbe/0x390 [ 88.132164][ C0] __irq_exit_rcu+0x52/0xf0 [ 88.136668][ C0] irq_exit_rcu+0x9/0x10 [ 88.140907][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 88.146534][ C0] [ 88.149460][ C0] [ 88.152385][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 88.158368][ C0] RIP: 0010:smp_call_function_many_cond+0x8bd/0x9e0 [ 88.164959][ C0] Code: 89 de 83 e6 01 31 ff e8 31 48 0a 00 83 e3 01 75 07 e8 77 44 0a 00 eb 42 f3 90 48 b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 <84> c0 75 10 41 f7 07 01 00 00 00 74 1e e8 51 44 0a 00 eb da 44 89 [ 88.184563][ C0] RSP: 0018:ffffc90000a37860 EFLAGS: 00000293 [ 88.190628][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811d98a780 [ 88.198593][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 88.206559][ C0] RBP: ffffc90000a37978 R08: ffff8881f7038e97 R09: 1ffff1103ee071d2 [ 88.214528][ C0] R10: dffffc0000000000 R11: ffffed103ee071d3 R12: ffff8881f7038e80 [ 88.222496][ C0] R13: 1ffff1103ee2784d R14: 0000000000000001 R15: ffff8881f713c268 [ 88.230480][ C0] ? text_poke_sync+0x30/0x30 [ 88.235153][ C0] ? smp_call_function_many+0x40/0x40 [ 88.240520][ C0] ? __kmalloc_track_caller+0x74/0x2c0 [ 88.245975][ C0] ? text_poke+0x20/0x20 [ 88.250210][ C0] ? text_poke_loc_init+0x105/0x560 [ 88.255407][ C0] ? text_poke_sync+0x30/0x30 [ 88.260082][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 88.265188][ C0] text_poke_bp_batch+0x1d4/0x600 [ 88.270207][ C0] ? text_poke_loc_init+0x560/0x560 [ 88.275400][ C0] ? __kasan_check_write+0x14/0x20 [ 88.280506][ C0] ? mutex_lock+0x9b/0x1c0 [ 88.284916][ C0] ? wait_for_completion_killable_timeout+0x10/0x10 [ 88.291500][ C0] ? text_poke_queue+0xde/0x1a0 [ 88.296361][ C0] text_poke_finish+0x1a/0x30 [ 88.301028][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 88.307005][ C0] __jump_label_update+0x38f/0x3b0 [ 88.312112][ C0] jump_label_update+0x39b/0x450 [ 88.317077][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 88.321296][ T64] FAULT_INJECTION: forcing a failure. [ 88.321296][ T64] name failslab, interval 1, probability 10, space 0, times 37 [ 88.322963][ C0] static_key_enable+0x1a/0x30 [ 88.340463][ C0] toggle_allocation_gate+0xba/0x440 [ 88.345759][ C0] ? kfence_debugfs_init+0x70/0x70 [ 88.350866][ C0] ? _raw_spin_unlock+0x4d/0x70 [ 88.355710][ C0] ? finish_task_switch+0x16b/0x790 [ 88.360906][ C0] ? __schedule+0xbd7/0x14a0 [ 88.365491][ C0] process_one_work+0x6c8/0xbb0 [ 88.370379][ C0] worker_thread+0xaa0/0x1250 [ 88.375057][ C0] kthread+0x3f5/0x4f0 [ 88.379129][ C0] ? worker_clr_flags+0x190/0x190 [ 88.384234][ C0] ? kthread_blkcg+0xd0/0xd0 [ 88.388818][ C0] ret_from_fork+0x1f/0x30 [ 88.393230][ C0] [ 88.396236][ T64] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0 [ 88.403529][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 88.413574][ T64] Call Trace: [ 88.416840][ T64] [ 88.419754][ T64] __dump_stack+0x21/0x30 [ 88.424075][ T64] dump_stack_lvl+0x110/0x170 [ 88.428739][ T64] ? show_regs_print_info+0x20/0x20 [ 88.433926][ T64] ? prandom_u32+0x24d/0x290 [ 88.438501][ T64] dump_stack+0x15/0x20 [ 88.442640][ T64] should_fail+0x3ab/0x500 [ 88.447042][ T64] __should_failslab+0xa4/0xe0 [ 88.451820][ T64] should_failslab+0x9/0x20 [ 88.456310][ T64] slab_pre_alloc_hook+0x39/0xd0 [ 88.461236][ T64] ? mempool_alloc_slab+0x1d/0x30 [ 88.466248][ T64] kmem_cache_alloc+0x44/0x260 [ 88.470997][ T64] ? submit_bio_noacct+0x762/0x800 [ 88.476096][ T64] ? mempool_free+0x330/0x330 [ 88.480755][ T64] mempool_alloc_slab+0x1d/0x30 [ 88.485588][ T64] mempool_alloc+0x167/0x4c0 [ 88.490160][ T64] ? chksum_update+0x47/0xa0 [ 88.494740][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0 [ 88.500536][ T64] ? mempool_resize+0x880/0x880 [ 88.505366][ T64] ? blkcg_set_ioprio+0x1f6/0x320 [ 88.510374][ T64] ? submit_bio+0x367/0x620 [ 88.514863][ T64] ? submit_bio_noacct+0x800/0x800 [ 88.519958][ T64] bio_alloc_bioset+0x124/0x910 [ 88.524793][ T64] submit_bh_wbc+0x1c2/0x680 [ 88.529368][ T64] submit_bh+0x2a/0x40 [ 88.533419][ T64] jbd2_journal_commit_transaction+0x2461/0x5650 [ 88.539736][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 88.546480][ T64] ? __switch_to+0x56c/0x1070 [ 88.551142][ T64] ? compat_start_thread+0x20/0x20 [ 88.556239][ T64] ? _raw_spin_unlock+0x4d/0x70 [ 88.561072][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 88.565732][ T64] ? __kasan_check_write+0x14/0x20 [ 88.570834][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 88.576296][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 88.580958][ T64] ? detach_if_pending+0xf5/0x300 [ 88.585973][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 88.591763][ T64] ? del_timer_sync+0x144/0x1a0 [ 88.596600][ T64] kjournald2+0x43d/0x860 [ 88.600913][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 88.606091][ T64] ? io_schedule+0xe0/0xe0 [ 88.610495][ T64] ? __kasan_check_read+0x11/0x20 [ 88.615505][ T64] ? __kthread_parkme+0xab/0x1f0 [ 88.620425][ T64] kthread+0x3f5/0x4f0 [ 88.624479][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 88.629664][ T64] ? kthread_blkcg+0xd0/0xd0 [ 88.634238][ T64] ret_from_fork+0x1f/0x30 [ 88.638645][ T64] [ 88.641877][ T300] FAULT_INJECTION: forcing a failure. [ 88.641877][ T300] name failslab, interval 1, probability 10, space 0, times 35 [ 88.642039][ T140] CPU: 1 PID: 140 Comm: dhcpcd Not tainted syzkaller #0 [ 88.661584][ T140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 88.671629][ T140] Call Trace: [ 88.674900][ T140] [ 88.677824][ T140] __dump_stack+0x21/0x30 [ 88.682146][ T140] dump_stack_lvl+0x110/0x170 [ 88.686811][ T140] ? show_regs_print_info+0x20/0x20 [ 88.691998][ T140] ? prandom_u32+0x24d/0x290 [ 88.696579][ T140] dump_stack+0x15/0x20 [ 88.700723][ T140] should_fail+0x3ab/0x500 [ 88.705132][ T140] ? alloc_skb_with_frags+0xa8/0x620 [ 88.710406][ T140] __should_failslab+0xa4/0xe0 [ 88.715162][ T140] should_failslab+0x9/0x20 [ 88.719656][ T140] slab_pre_alloc_hook+0x39/0xd0 [ 88.724583][ T140] ? alloc_skb_with_frags+0xa8/0x620 [ 88.729858][ T140] ? alloc_skb_with_frags+0xa8/0x620 [ 88.735137][ T140] __kmalloc_track_caller+0x6c/0x2c0 [ 88.740418][ T140] ? alloc_skb_with_frags+0xa8/0x620 [ 88.745696][ T140] ? alloc_skb_with_frags+0xa8/0x620 [ 88.750979][ T140] __alloc_skb+0x210/0x730 [ 88.755387][ T140] alloc_skb_with_frags+0xa8/0x620 [ 88.760500][ T140] ? avc_has_perm_noaudit+0x390/0x490 [ 88.765869][ T140] sock_alloc_send_pskb+0x87f/0x9a0 [ 88.771059][ T140] ? kasan_set_track+0x5b/0x70 [ 88.775812][ T140] ? avc_denied+0x1b0/0x1b0 [ 88.780307][ T140] ? sock_kzfree_s+0x60/0x60 [ 88.784911][ T140] ? __kasan_check_write+0x14/0x20 [ 88.790015][ T140] ? _raw_spin_lock+0x94/0xf0 [ 88.794688][ T140] ? _raw_spin_trylock_bh+0x150/0x150 [ 88.800054][ T140] ? avc_has_perm+0x163/0x250 [ 88.804723][ T140] unix_dgram_sendmsg+0x6f3/0x19b0 [ 88.809830][ T140] ? selinux_socket_sendmsg+0x22f/0x340 [ 88.815371][ T140] ? selinux_socket_accept+0x570/0x570 [ 88.820823][ T140] ? unix_dgram_poll+0x6c0/0x6c0 [ 88.825752][ T140] ? __kasan_slab_free+0x11/0x20 [ 88.830679][ T140] ? kfree_skbmem+0x10c/0x180 [ 88.835345][ T140] unix_seqpacket_sendmsg+0x118/0x1e0 [ 88.840708][ T140] sock_write_iter+0x2a6/0x3a0 [ 88.845463][ T140] ? sock_read_iter+0x380/0x380 [ 88.850304][ T140] ? file_has_perm+0x52d/0x700 [ 88.855056][ T140] do_iter_readv_writev+0x477/0x5f0 [ 88.860247][ T140] ? generic_file_rw_checks+0x2a0/0x2a0 [ 88.861315][ T315] FAULT_INJECTION: forcing a failure. [ 88.861315][ T315] name failslab, interval 1, probability 10, space 0, times 35 [ 88.865786][ T140] ? fsnotify_perm+0x67/0x5b0 [ 88.883267][ T140] ? security_file_permission+0x79/0xa0 [ 88.888811][ T140] ? security_file_permission+0x83/0xa0 [ 88.894346][ T140] do_iter_write+0x207/0x7b0 [ 88.898930][ T140] vfs_writev+0x2df/0x570 [ 88.903255][ T140] ? do_writev+0x2c0/0x2c0 [ 88.907663][ T140] ? vfs_read+0x9b8/0xc20 [ 88.911986][ T140] ? percpu_counter_add_batch+0x13c/0x160 [ 88.917694][ T140] ? __kasan_check_read+0x11/0x20 [ 88.922710][ T140] ? __fdget_pos+0x1f7/0x380 [ 88.927292][ T140] do_writev+0x14e/0x2c0 [ 88.931531][ T140] ? do_readv+0x450/0x450 [ 88.935849][ T140] ? debug_smp_processor_id+0x17/0x20 [ 88.941216][ T140] __x64_sys_writev+0x7d/0x90 [ 88.945888][ T140] x64_sys_call+0x974/0x9a0 [ 88.950379][ T140] do_syscall_64+0x4c/0xa0 [ 88.954781][ T140] ? clear_bhb_loop+0x50/0xa0 [ 88.959448][ T140] ? clear_bhb_loop+0x50/0xa0 [ 88.964114][ T140] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 88.970000][ T140] RIP: 0033:0x7fbcbf742407 [ 88.974408][ T140] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 88.994007][ T140] RSP: 002b:00007ffec12e8710 EFLAGS: 00000202 ORIG_RAX: 0000000000000014 [ 89.002416][ T140] RAX: ffffffffffffffda RBX: 00007fbcbf6b8740 RCX: 00007fbcbf742407 [ 89.010385][ T140] RDX: 0000000000000005 RSI: 00007ffec12e8770 RDI: 000000000000000f [ 89.018350][ T140] RBP: 0000560fe3d13f20 R08: 0000000000000000 R09: 0000000000000000 [ 89.026353][ T140] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec1308b90 [ 89.034315][ T140] R13: 0000000000000004 R14: 0000000000000148 R15: 00007ffec12f8960 [ 89.042342][ T140] [ 89.045382][ T315] CPU: 0 PID: 315 Comm: kworker/0:2 Not tainted syzkaller #0 [ 89.052761][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 89.062809][ T315] Workqueue: ipv6_addrconf addrconf_dad_work [ 89.068831][ T315] Call Trace: [ 89.072110][ T315] [ 89.075030][ T315] __dump_stack+0x21/0x30 [ 89.079340][ T315] dump_stack_lvl+0x110/0x170 [ 89.084001][ T315] ? show_regs_print_info+0x20/0x20 [ 89.089184][ T315] ? prandom_u32+0x24d/0x290 [ 89.093791][ T315] dump_stack+0x15/0x20 [ 89.097930][ T315] should_fail+0x3ab/0x500 [ 89.102331][ T315] __should_failslab+0xa4/0xe0 [ 89.107089][ T315] should_failslab+0x9/0x20 [ 89.111582][ T315] slab_pre_alloc_hook+0x39/0xd0 [ 89.116508][ T315] __kmalloc+0x6d/0x2c0 [ 89.120651][ T315] ? ___neigh_create+0x6fb/0x1c50 [ 89.125666][ T315] ___neigh_create+0x6fb/0x1c50 [ 89.130503][ T315] ? arch_stack_walk+0x108/0x140 [ 89.135437][ T315] __neigh_create+0x31/0x40 [ 89.139924][ T315] ip6_finish_output2+0xae3/0x1790 [ 89.145022][ T315] ? __ip6_finish_output+0x7e0/0x7e0 [ 89.150293][ T315] ? ip6t_do_table+0x1355/0x1510 [ 89.155220][ T315] __ip6_finish_output+0x621/0x7e0 [ 89.160325][ T315] ip6_finish_output+0x31/0x220 [ 89.165179][ T315] ? ip6_output+0x3ea/0x410 [ 89.169685][ T315] ip6_output+0x1fa/0x410 [ 89.174006][ T315] ? ac6_seq_show+0xf0/0xf0 [ 89.178497][ T315] ? ip6_output+0x410/0x410 [ 89.182989][ T315] ndisc_send_skb+0x7f6/0xcf0 [ 89.187656][ T315] ? ndisc_alloc_skb+0x290/0x290 [ 89.192580][ T315] ? ndisc_error_report+0xc0/0xc0 [ 89.197589][ T315] ? ndisc_send_rs+0x61f/0x960 [ 89.202339][ T315] ? memcpy+0x56/0x70 [ 89.206306][ T315] ndisc_send_rs+0x711/0x960 [ 89.210883][ T315] addrconf_dad_completed+0x936/0xe20 [ 89.216241][ T315] ? addrconf_dad_stop+0x440/0x440 [ 89.221370][ T315] addrconf_dad_work+0xc4c/0x1510 [ 89.226382][ T315] ? ipv6_get_saddr_eval+0xf70/0xf70 [ 89.231653][ T315] ? __kasan_check_write+0x14/0x20 [ 89.236752][ T315] ? _raw_spin_lock_irq+0x95/0xf0 [ 89.241762][ T315] ? _raw_spin_lock_irqsave+0x130/0x130 [ 89.247294][ T315] ? __schedule+0xbd7/0x14a0 [ 89.251902][ T315] process_one_work+0x6c8/0xbb0 [ 89.256745][ T315] worker_thread+0xaa0/0x1250 [ 89.261413][ T315] kthread+0x3f5/0x4f0 [ 89.265467][ T315] ? worker_clr_flags+0x190/0x190 [ 89.270479][ T315] ? kthread_blkcg+0xd0/0xd0 [ 89.275054][ T315] ret_from_fork+0x1f/0x30 [ 89.279455][ T315] [ 89.282644][ T101] FAULT_INJECTION: forcing a failure. [ 89.282644][ T101] name failslab, interval 1, probability 10, space 0, times 34 [ 89.295570][ T2] FAULT_INJECTION: forcing a failure. [ 89.295570][ T2] name failslab, interval 1, probability 10, space 0, times 33 [ 89.308810][ T140] FAULT_INJECTION: forcing a failure. [ 89.308810][ T140] name failslab, interval 1, probability 10, space 0, times 31 [ 89.309985][ T1] CPU: 0 PID: 1 Comm: init Not tainted syzkaller #0 [ 89.328169][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 89.338220][ T1] Call Trace: [ 89.341495][ T1] [ 89.344426][ T1] __dump_stack+0x21/0x30 [ 89.346117][ T45] FAULT_INJECTION: forcing a failure. [ 89.346117][ T45] name failslab, interval 1, probability 10, space 0, times 31 [ 89.348754][ T1] dump_stack_lvl+0x110/0x170 [ 89.366151][ T1] ? show_regs_print_info+0x20/0x20 [ 89.371349][ T1] ? prandom_u32+0x24d/0x290 [ 89.375936][ T1] dump_stack+0x15/0x20 [ 89.380082][ T1] should_fail+0x3ab/0x500 [ 89.384494][ T1] __should_failslab+0xa4/0xe0 [ 89.389251][ T1] should_failslab+0x9/0x20 [ 89.393745][ T1] slab_pre_alloc_hook+0x39/0xd0 [ 89.398677][ T1] ? fcntl_setlk+0xa6/0x1070 [ 89.403262][ T1] kmem_cache_alloc+0x44/0x260 [ 89.408023][ T1] fcntl_setlk+0xa6/0x1070 [ 89.412436][ T1] ? avc_has_perm+0x163/0x250 [ 89.417107][ T1] ? vfs_lock_file+0xc0/0xc0 [ 89.421692][ T1] ? avc_has_perm_noaudit+0x490/0x490 [ 89.427055][ T1] ? __kasan_check_write+0x14/0x20 [ 89.432158][ T1] ? _copy_from_user+0x95/0xd0 [ 89.436909][ T1] do_fcntl+0x498/0x1220 [ 89.441143][ T1] ? match_file+0x130/0x130 [ 89.445637][ T1] ? kill_fasync+0x210/0x210 [ 89.450257][ T1] ? security_file_fcntl+0x84/0xa0 [ 89.455363][ T1] __se_sys_fcntl+0xdf/0x1b0 [ 89.459943][ T1] ? debug_smp_processor_id+0x17/0x20 [ 89.465307][ T1] __x64_sys_fcntl+0x7b/0x90 [ 89.469891][ T1] x64_sys_call+0x6b8/0x9a0 [ 89.474387][ T1] do_syscall_64+0x4c/0xa0 [ 89.478799][ T1] ? clear_bhb_loop+0x50/0xa0 [ 89.483464][ T1] ? clear_bhb_loop+0x50/0xa0 [ 89.488129][ T1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.494013][ T1] RIP: 0033:0x7ff915230add [ 89.498424][ T1] Code: 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 c7 44 24 b8 10 00 00 00 48 89 44 24 c8 83 fe 09 74 1a b8 48 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 c3 66 2e 0f 1f 84 00 00 00 00 00 48 8d 54 [ 89.518027][ T1] RSP: 002b:00007ffc4b5e5628 EFLAGS: 00000293 ORIG_RAX: 0000000000000048 [ 89.526439][ T1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff915230add [ 89.534402][ T1] RDX: 00007ffc4b5e5630 RSI: 0000000000000007 RDI: 0000000000000003 [ 89.542361][ T1] RBP: 0000000000000003 R08: 00007ffc4b5e5650 R09: 0000000000000000 [ 89.550325][ T1] R10: 0000000000000008 R11: 0000000000000293 R12: 0000000000000000 [ 89.558286][ T1] R13: 00007ffc4b5e5650 R14: 000000000000000c R15: 0000555e0e4b1d98 [ 89.566285][ T1] [ 89.569299][ T140] CPU: 1 PID: 140 Comm: dhcpcd Not tainted syzkaller #0 [ 89.576238][ T140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 89.586279][ T140] Call Trace: [ 89.589551][ T140] [ 89.592485][ T140] __dump_stack+0x21/0x30 [ 89.596827][ T140] dump_stack_lvl+0x110/0x170 [ 89.601504][ T140] ? show_regs_print_info+0x20/0x20 [ 89.606703][ T140] ? prandom_u32+0x24d/0x290 [ 89.611286][ T140] dump_stack+0x15/0x20 [ 89.615431][ T140] should_fail+0x3ab/0x500 [ 89.619839][ T140] __should_failslab+0xa4/0xe0 [ 89.624596][ T140] should_failslab+0x9/0x20 [ 89.629090][ T140] slab_pre_alloc_hook+0x39/0xd0 [ 89.631556][ T309] FAULT_INJECTION: forcing a failure. [ 89.631556][ T309] name failslab, interval 1, probability 10, space 0, times 30 [ 89.634020][ T140] ? __d_alloc+0x2d/0x690 [ 89.651093][ T140] kmem_cache_alloc+0x44/0x260 [ 89.655866][ T140] __d_alloc+0x2d/0x690 [ 89.660013][ T140] d_alloc_pseudo+0x1d/0x70 [ 89.664518][ T140] alloc_file_pseudo+0xe0/0x200 [ 89.669365][ T140] ? alloc_empty_file_noaccount+0x80/0x80 [ 89.675078][ T140] ? alloc_fd+0x4c2/0x570 [ 89.679402][ T140] sock_alloc_file+0xba/0x260 [ 89.684074][ T140] __sys_socket+0x12b/0x190 [ 89.688591][ T140] __x64_sys_socket+0x7a/0x90 [ 89.693261][ T140] x64_sys_call+0x8c5/0x9a0 [ 89.697769][ T140] do_syscall_64+0x4c/0xa0 [ 89.702179][ T140] ? clear_bhb_loop+0x50/0xa0 [ 89.706847][ T140] ? clear_bhb_loop+0x50/0xa0 [ 89.711519][ T140] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.717405][ T140] RIP: 0033:0x7fbcbf7bd707 [ 89.721812][ T140] Code: 54 24 0c e8 6b ac ff ff 83 f8 ff 74 04 8b 44 24 0c 48 83 c4 18 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 e6 0c 00 f7 d8 64 89 01 48 [ 89.741496][ T140] RSP: 002b:00007ffec12e7848 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 [ 89.749909][ T140] RAX: ffffffffffffffda RBX: 000000000000001b RCX: 00007fbcbf7bd707 [ 89.757873][ T140] RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001 [ 89.765837][ T140] RBP: 00007fbcbf849560 R08: 0000000000000073 R09: 0000000000000001 [ 89.773798][ T140] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002 [ 89.781810][ T140] R13: 00007ffec12e7970 R14: 000000000000004f R15: 00007ffec12e7970 [ 89.789780][ T140] [ 89.792793][ T101] CPU: 0 PID: 101 Comm: udevd Not tainted syzkaller #0 [ 89.799645][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 89.809690][ T101] Call Trace: [ 89.812960][ T101] [ 89.815876][ T101] __dump_stack+0x21/0x30 [ 89.820193][ T101] dump_stack_lvl+0x110/0x170 [ 89.824851][ T101] ? show_regs_print_info+0x20/0x20 [ 89.830034][ T101] dump_stack+0x15/0x20 [ 89.834173][ T101] should_fail+0x3ab/0x500 [ 89.838573][ T101] __should_failslab+0xa4/0xe0 [ 89.843324][ T101] should_failslab+0x9/0x20 [ 89.847814][ T101] slab_pre_alloc_hook+0x39/0xd0 [ 89.852739][ T101] ? getname_flags+0xba/0x510 [ 89.857401][ T101] kmem_cache_alloc+0x44/0x260 [ 89.862152][ T101] getname_flags+0xba/0x510 [ 89.866650][ T101] user_path_at_empty+0x2f/0x1c0 [ 89.871575][ T101] vfs_statx+0x109/0xa20 [ 89.875809][ T101] ? from_kgid_munged+0x193/0x6e0 [ 89.880819][ T101] ? vfs_fstatat+0x40/0x40 [ 89.885224][ T101] __se_sys_newfstatat+0x10e/0x3d0 [ 89.890324][ T101] ? __x64_sys_newfstatat+0xb0/0xb0 [ 89.895511][ T101] ? blkcg_maybe_throttle_current+0x1e0/0xa00 [ 89.901566][ T101] ? __fput+0x67c/0x900 [ 89.905712][ T101] __x64_sys_newfstatat+0x9b/0xb0 [ 89.910723][ T101] x64_sys_call+0x2c1/0x9a0 [ 89.915214][ T101] do_syscall_64+0x4c/0xa0 [ 89.919618][ T101] ? clear_bhb_loop+0x50/0xa0 [ 89.924532][ T101] ? clear_bhb_loop+0x50/0xa0 [ 89.929215][ T101] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.935100][ T101] RIP: 0033:0x7f34aab03b0a [ 89.939503][ T101] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 [ 89.959152][ T101] RSP: 002b:00007ffcef891a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 89.967612][ T101] RAX: ffffffffffffffda RBX: 0000556f2e684410 RCX: 00007f34aab03b0a [ 89.975585][ T101] RDX: 00007ffcef891a40 RSI: 0000556f2e6722a8 RDI: 00000000ffffff9c [ 89.983549][ T101] RBP: 0000556f41ef1658 R08: 00063478c1c69200 R09: 000f1617c83bf216 [ 89.991511][ T101] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 89.999474][ T101] R13: 00007ffcef891a40 R14: 0000000000000000 R15: 00063478c1c69200 [ 90.007439][ T101] [ 90.010490][ T300] CPU: 1 PID: 300 Comm: syz-executor Not tainted syzkaller #0 [ 90.017950][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 90.028004][ T300] Call Trace: [ 90.031277][ T300] [ 90.034201][ T300] __dump_stack+0x21/0x30 [ 90.038526][ T300] dump_stack_lvl+0x110/0x170 [ 90.043188][ T300] ? show_regs_print_info+0x20/0x20 [ 90.048382][ T300] dump_stack+0x15/0x20 [ 90.052530][ T300] should_fail+0x3ab/0x500 [ 90.056940][ T300] __should_failslab+0xa4/0xe0 [ 90.061698][ T300] should_failslab+0x9/0x20 [ 90.066205][ T300] slab_pre_alloc_hook+0x39/0xd0 [ 90.071139][ T300] ? security_file_alloc+0x33/0x120 [ 90.076335][ T300] kmem_cache_alloc+0x44/0x260 [ 90.081091][ T300] security_file_alloc+0x33/0x120 [ 90.086110][ T300] __alloc_file+0xb5/0x2a0 [ 90.090521][ T300] alloc_empty_file+0x97/0x180 [ 90.095284][ T300] alloc_file+0x59/0x580 [ 90.099520][ T300] alloc_file_clone+0x28/0xb0 [ 90.104187][ T300] create_pipe_files+0x3e7/0x6c0 [ 90.109115][ T300] __do_pipe_flags+0x4f/0x200 [ 90.113783][ T300] do_pipe2+0xa7/0x190 [ 90.117845][ T300] ? pipe_fcntl+0x510/0x510 [ 90.121546][ T1] FAULT_INJECTION: forcing a failure. [ 90.121546][ T1] name failslab, interval 1, probability 10, space 0, times 29 [ 90.122335][ T300] ? __ia32_sys_read+0x90/0x90 [ 90.139992][ T300] ? debug_smp_processor_id+0x17/0x20 [ 90.145360][ T300] __x64_sys_pipe2+0x5a/0x70 [ 90.149941][ T300] x64_sys_call+0x354/0x9a0 [ 90.154432][ T300] do_syscall_64+0x4c/0xa0 [ 90.158836][ T300] ? clear_bhb_loop+0x50/0xa0 [ 90.163502][ T300] ? clear_bhb_loop+0x50/0xa0 [ 90.168173][ T300] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 90.174055][ T300] RIP: 0033:0x7eff70aa0ec9 [ 90.178466][ T300] Code: 38 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 eb aa e8 ea 34 00 00 66 2e 0f 1f 84 00 00 00 00 00 31 f6 b8 25 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 07 c3 66 0f 1f 44 00 00 48 c7 c2 e8 ff ff ff [ 90.198065][ T300] RSP: 002b:00007ffe506108e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000125 [ 90.206475][ T300] RAX: ffffffffffffffda RBX: 000055558b94c8f0 RCX: 00007eff70aa0ec9 [ 90.214442][ T300] RDX: 0000000000000003 RSI: 0000000000000000 RDI: 00007ffe506108f8 [ 90.222408][ T300] RBP: 00007ffe50610ec0 R08: 00007eff70cf4e20 R09: 0000000000000000 [ 90.230381][ T300] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe50610d00 [ 90.238534][ T300] R13: 000055558b94ffb8 R14: 000055558b94cbf0 R15: 00007ffe50610a40 [ 90.246507][ T300] [ 90.249529][ T309] CPU: 0 PID: 309 Comm: udevd Not tainted syzkaller #0 [ 90.256378][ T309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 90.266424][ T309] Call Trace: [ 90.269694][ T309] [ 90.272614][ T309] __dump_stack+0x21/0x30 [ 90.276936][ T309] dump_stack_lvl+0x110/0x170 [ 90.281601][ T309] ? show_regs_print_info+0x20/0x20 [ 90.286885][ T309] dump_stack+0x15/0x20 [ 90.291032][ T309] should_fail+0x3ab/0x500 [ 90.295439][ T309] __should_failslab+0xa4/0xe0 [ 90.300207][ T309] should_failslab+0x9/0x20 [ 90.304721][ T309] slab_pre_alloc_hook+0x39/0xd0 [ 90.309695][ T309] __kmalloc+0x6d/0x2c0 [ 90.313863][ T309] ? kvmalloc_node+0x211/0x320 [ 90.318631][ T309] kvmalloc_node+0x211/0x320 [ 90.323211][ T309] ? check_stack_object+0x133/0x150 [ 90.328400][ T309] ? vm_mmap+0xb0/0xb0 [ 90.332470][ T309] ? strncpy_from_user+0x1/0x2d0 [ 90.337434][ T309] vmemdup_user+0x26/0xe0 [ 90.341768][ T309] setxattr+0x1ce/0x360 [ 90.345912][ T309] ? path_setxattr+0x290/0x290 [ 90.350670][ T309] ? __mnt_want_write+0x1e6/0x260 [ 90.355689][ T309] ? mnt_want_write+0x20b/0x2e0 [ 90.360533][ T309] path_setxattr+0x147/0x290 [ 90.365114][ T309] ? simple_xattr_list_add+0x120/0x120 [ 90.370565][ T309] ? do_utimes+0x2a0/0x2a0 [ 90.374970][ T309] __x64_sys_lsetxattr+0xc2/0xe0 [ 90.379903][ T309] x64_sys_call+0x8cc/0x9a0 [ 90.384393][ T309] do_syscall_64+0x4c/0xa0 [ 90.388795][ T309] ? clear_bhb_loop+0x50/0xa0 [ 90.393574][ T309] ? clear_bhb_loop+0x50/0xa0 [ 90.398253][ T309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 90.404132][ T309] RIP: 0033:0x7f34aab0f57a [ 90.408538][ T309] Code: 48 83 c4 08 48 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 0f 1f 44 00 00 31 db eb e4 0f 1f 40 00 49 89 ca b8 bd 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4e 38 0d 00 f7 d8 64 89 01 48 [ 90.428134][ T309] RSP: 002b:00007ffcef890948 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd [ 90.436538][ T309] RAX: ffffffffffffffda RBX: 0000556f41eedb30 RCX: 00007f34aab0f57a [ 90.444498][ T309] RDX: 0000556f41eedb30 RSI: 00007f34ab18829c RDI: 00007ffcef891490 [ 90.452464][ T309] RBP: 0000556f41cb18d0 R08: 0000000000000000 R09: 0000000000000003 [ 90.460452][ T309] R10: 000000000000001b R11: 0000000000000246 R12: 00007ffcef891490 [ 90.468446][ T309] R13: 0000000000000001 R14: 0000556f2e6726d7 R15: 0000556f41eebbe0 [ 90.476435][ T309] [ 90.479460][ T45] CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted syzkaller #0 [ 90.486835][ T45] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 90.496884][ T45] Workqueue: writeback wb_workfn (flush-8:0) [ 90.502877][ T45] Call Trace: [ 90.506153][ T45] [ 90.509074][ T45] __dump_stack+0x21/0x30 [ 90.513394][ T45] dump_stack_lvl+0x110/0x170 [ 90.518062][ T45] ? show_regs_print_info+0x20/0x20 [ 90.523264][ T45] dump_stack+0x15/0x20 [ 90.527413][ T45] should_fail+0x3ab/0x500 [ 90.531819][ T45] __should_failslab+0xa4/0xe0 [ 90.536616][ T45] should_failslab+0x9/0x20 [ 90.541113][ T45] slab_pre_alloc_hook+0x39/0xd0 [ 90.546049][ T45] ? ext4_init_io_end+0x29/0x130 [ 90.550982][ T45] kmem_cache_alloc+0x44/0x260 [ 90.555743][ T45] ext4_init_io_end+0x29/0x130 [ 90.560876][ T45] ext4_writepages+0xb25/0x30a0 [ 90.565754][ T45] ? ext4_readpage+0x220/0x220 [ 90.570523][ T45] ? __kasan_check_write+0x14/0x20 [ 90.572152][ T6] FAULT_INJECTION: forcing a failure. [ 90.572152][ T6] name failslab, interval 1, probability 10, space 0, times 28 [ 90.575646][ T45] ? _raw_spin_lock+0x94/0xf0 [ 90.593062][ T45] ? _raw_spin_trylock_bh+0x150/0x150 [ 90.598438][ T45] ? __wb_update_bandwidth+0x853/0x890 [ 90.603902][ T45] ? ext4_readpage+0x220/0x220 [ 90.608660][ T45] do_writepages+0x476/0x6d0 [ 90.613245][ T45] ? __writepage+0x130/0x130 [ 90.617831][ T45] ? __kasan_check_write+0x14/0x20 [ 90.622942][ T45] ? __kasan_check_write+0x14/0x20 [ 90.628044][ T45] ? _raw_spin_lock+0x94/0xf0 [ 90.632889][ T45] __writeback_single_inode+0xd9/0x9e0 [ 90.638353][ T45] ? wbc_attach_and_unlock_inode+0x194/0x5f0 [ 90.644333][ T45] writeback_sb_inodes+0x9f3/0x1610 [ 90.649530][ T45] ? queue_io+0x4b0/0x4b0 [ 90.653850][ T45] ? down_read_trylock+0x317/0x630 [ 90.658954][ T45] __writeback_inodes_wb+0x127/0x400 [ 90.664232][ T45] wb_writeback+0x3ff/0x990 [ 90.668729][ T45] ? inode_cgwb_move_to_attached+0x3b0/0x3b0 [ 90.674700][ T45] ? set_worker_desc+0x1ba/0x1f0 [ 90.679633][ T45] ? __kasan_check_write+0x14/0x20 [ 90.684735][ T45] ? cpumask_next+0x7c/0xa0 [ 90.689228][ T45] wb_workfn+0xa49/0xf30 [ 90.693478][ T45] ? inode_wait_for_writeback+0x220/0x220 [ 90.699188][ T45] ? compat_start_thread+0x20/0x20 [ 90.704292][ T45] ? finish_task_switch+0x16b/0x790 [ 90.709483][ T45] ? switch_mm_irqs_off+0x730/0x960 [ 90.714675][ T45] ? __schedule+0xbd7/0x14a0 [ 90.719260][ T45] process_one_work+0x6c8/0xbb0 [ 90.724109][ T45] worker_thread+0xaa0/0x1250 [ 90.728780][ T45] kthread+0x3f5/0x4f0 [ 90.732838][ T45] ? worker_clr_flags+0x190/0x190 [ 90.737850][ T45] ? kthread_blkcg+0xd0/0xd0 [ 90.742432][ T45] ret_from_fork+0x1f/0x30 [ 90.746848][ T45] [ 90.749856][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0 [ 90.757053][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 90.767102][ T6] Workqueue: mld mld_dad_work [ 90.771778][ T6] Call Trace: [ 90.775049][ T6] [ 90.778011][ T6] __dump_stack+0x21/0x30 [ 90.782339][ T6] dump_stack_lvl+0x110/0x170 [ 90.787005][ T6] ? show_regs_print_info+0x20/0x20 [ 90.792197][ T6] dump_stack+0x15/0x20 [ 90.796340][ T6] should_fail+0x3ab/0x500 [ 90.800745][ T6] __should_failslab+0xa4/0xe0 [ 90.805500][ T6] should_failslab+0x9/0x20 [ 90.810022][ T6] slab_pre_alloc_hook+0x39/0xd0 [ 90.814955][ T6] ? __alloc_skb+0xe4/0x730 [ 90.819452][ T6] kmem_cache_alloc+0x44/0x260 [ 90.824208][ T6] ? __kasan_check_write+0x14/0x20 [ 90.829315][ T6] __alloc_skb+0xe4/0x730 [ 90.833639][ T6] mld_newpack+0x143/0x9e0 [ 90.838048][ T6] ? mld_sendpack+0xba0/0xba0 [ 90.842717][ T6] add_grec+0xee8/0x1340 [ 90.846956][ T6] ? __kasan_check_write+0x14/0x20 [ 90.852086][ T6] ? __kasan_check_write+0x14/0x20 [ 90.857225][ T6] mld_send_initial_cr+0x157/0x320 [ 90.862331][ T6] mld_dad_work+0x3a/0x4e0 [ 90.866740][ T6] process_one_work+0x6c8/0xbb0 [ 90.871581][ T6] worker_thread+0xaa0/0x1250 [ 90.876251][ T6] kthread+0x3f5/0x4f0 [ 90.880307][ T6] ? worker_clr_flags+0x190/0x190 [ 90.885337][ T6] ? kthread_blkcg+0xd0/0xd0 [ 90.889917][ T6] ret_from_fork+0x1f/0x30 [ 90.894378][ T6] [ 90.897415][ T2] CPU: 1 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 90.904361][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 90.914412][ T2] Call Trace: [ 90.917690][ T2] [ 90.920612][ T2] __dump_stack+0x21/0x30 [ 90.924936][ T2] dump_stack_lvl+0x110/0x170 [ 90.929604][ T2] ? show_regs_print_info+0x20/0x20 [ 90.934799][ T2] dump_stack+0x15/0x20 [ 90.939467][ T2] should_fail+0x3ab/0x500 [ 90.943877][ T2] __should_failslab+0xa4/0xe0 [ 90.948641][ T2] should_failslab+0x9/0x20 [ 90.953140][ T2] slab_pre_alloc_hook+0x39/0xd0 [ 90.958077][ T2] ? dup_task_struct+0x57/0xc50 [ 90.961166][ T309] FAULT_INJECTION: forcing a failure. [ 90.961166][ T309] name failslab, interval 1, probability 10, space 0, times 27 [ 90.962915][ T2] kmem_cache_alloc+0x44/0x260 [ 90.980405][ T2] dup_task_struct+0x57/0xc50 [ 90.985119][ T2] ? __kasan_check_write+0x14/0x20 [ 90.990225][ T2] copy_process+0x5e0/0x3280 [ 90.994810][ T2] ? update_load_avg+0x442/0x1110 [ 90.999838][ T2] ? __pidfd_prepare+0x150/0x150 [ 91.004767][ T2] ? __switch_to+0x56c/0x1070 [ 91.009438][ T2] kernel_clone+0x233/0x960 [ 91.013935][ T2] ? create_io_thread+0x170/0x170 [ 91.018952][ T2] ? finish_task_switch+0x16b/0x790 [ 91.024149][ T2] ? kthread_blkcg+0xd0/0xd0 [ 91.028733][ T2] kernel_thread+0xfe/0x170 [ 91.033229][ T2] ? ptrace_event_pid+0x180/0x180 [ 91.038493][ T2] ? kthread_blkcg+0xd0/0xd0 [ 91.043104][ T2] ? _raw_spin_trylock_bh+0x150/0x150 [ 91.048480][ T2] ? __kasan_check_read+0x11/0x20 [ 91.053546][ T2] kthreadd+0x346/0x480 [ 91.057700][ T2] ? tokenize_frame_descr+0x93/0xc0 [ 91.062900][ T2] ? kthread_stop+0x3e0/0x3e0 [ 91.067634][ T2] ? _raw_spin_unlock_irq+0x4e/0x70 [ 91.072829][ T2] ? calculate_sigpending+0x7c/0x90 [ 91.078055][ T2] ? kthread_stop+0x3e0/0x3e0 [ 91.082776][ T2] ret_from_fork+0x1f/0x30 [ 91.087205][ T2] [ 91.090219][ T1] CPU: 0 PID: 1 Comm: init Not tainted syzkaller #0 [ 91.096811][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 91.106857][ T1] Call Trace: [ 91.110125][ T1] [ 91.113040][ T1] __dump_stack+0x21/0x30 [ 91.117355][ T1] dump_stack_lvl+0x110/0x170 [ 91.122154][ T1] ? show_regs_print_info+0x20/0x20 [ 91.127359][ T1] ? prandom_u32+0x24d/0x290 [ 91.131938][ T1] dump_stack+0x15/0x20 [ 91.136082][ T1] should_fail+0x3ab/0x500 [ 91.140506][ T1] __should_failslab+0xa4/0xe0 [ 91.145272][ T1] should_failslab+0x9/0x20 [ 91.149893][ T1] slab_pre_alloc_hook+0x39/0xd0 [ 91.154831][ T1] ? posix_lock_inode+0x258/0x26a0 [ 91.159935][ T1] kmem_cache_alloc+0x44/0x260 [ 91.164692][ T1] ? locks_get_lock_context+0x57/0x2d0 [ 91.170143][ T1] posix_lock_inode+0x258/0x26a0 [ 91.175077][ T1] ? match_file+0x130/0x130 [ 91.179605][ T1] ? posix_lock_file+0x50/0x50 [ 91.184373][ T1] ? security_file_lock+0x79/0xa0 [ 91.189391][ T1] fcntl_setlk+0xa2a/0x1070 [ 91.193886][ T1] ? vfs_lock_file+0xc0/0xc0 [ 91.198471][ T1] ? avc_has_perm_noaudit+0x490/0x490 [ 91.203837][ T1] ? __kasan_check_write+0x14/0x20 [ 91.208943][ T1] ? _copy_from_user+0x95/0xd0 [ 91.213699][ T1] do_fcntl+0x498/0x1220 [ 91.217940][ T1] ? match_file+0x130/0x130 [ 91.222429][ T1] ? kill_fasync+0x210/0x210 [ 91.227009][ T1] ? security_file_fcntl+0x84/0xa0 [ 91.232109][ T1] __se_sys_fcntl+0xdf/0x1b0 [ 91.236693][ T1] ? debug_smp_processor_id+0x17/0x20 [ 91.242067][ T1] __x64_sys_fcntl+0x7b/0x90 [ 91.246648][ T1] x64_sys_call+0x6b8/0x9a0 [ 91.251140][ T1] do_syscall_64+0x4c/0xa0 [ 91.255545][ T1] ? clear_bhb_loop+0x50/0xa0 [ 91.260207][ T1] ? clear_bhb_loop+0x50/0xa0 [ 91.265025][ T1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 91.270927][ T1] RIP: 0033:0x7ff915230add [ 91.275336][ T1] Code: 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 c7 44 24 b8 10 00 00 00 48 89 44 24 c8 83 fe 09 74 1a b8 48 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 c3 66 2e 0f 1f 84 00 00 00 00 00 48 8d 54 [ 91.294932][ T1] RSP: 002b:00007ffc4b5e5628 EFLAGS: 00000293 ORIG_RAX: 0000000000000048 [ 91.303370][ T1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff915230add [ 91.311347][ T1] RDX: 00007ffc4b5e5630 RSI: 0000000000000007 RDI: 0000000000000003 SYZFAIL: pipe failed (errno 12: Cannot allocate memory) [ 91.319308][ T1] RBP: 0000000000000003 R08: 00007ffc4b5e5650 R09: 0000000000000000 [ 91.327271][ T1] R10: 0000000000000008 R11: 0000000000000293 R12: 0000000000000000 [ 91.335240][ T1] R13: 00007ffc4b5e5650 R14: 0000000000000002 R15: 0000555e0e4b1d98 [ 91.343217][ T1] [ 91.347049][ T367] FAULT_INJECTION: forcing a failure. [ 91.347049][ T367] name failslab, interval 1, probability 10, space 0, times 25 [ 91.348282][ T309] CPU: 0 PID: 309 Comm: udevd Not tainted syzkaller #0 [ 91.366762][ T309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 91.376826][ T309] Call Trace: [ 91.380100][ T309] [ 91.383026][ T309] __dump_stack+0x21/0x30 [ 91.387359][ T309] dump_stack_lvl+0x110/0x170 [ 91.392173][ T309] ? show_regs_print_info+0x20/0x20 [ 91.397380][ T309] dump_stack+0x15/0x20 [ 91.401533][ T309] should_fail+0x3ab/0x500 [ 91.405946][ T309] __should_failslab+0xa4/0xe0 [ 91.410710][ T309] should_failslab+0x9/0x20 [ 91.415207][ T309] slab_pre_alloc_hook+0x39/0xd0 [ 91.420175][ T309] ? getname_flags+0xba/0x510 [ 91.424844][ T309] kmem_cache_alloc+0x44/0x260 [ 91.429603][ T309] getname_flags+0xba/0x510 [ 91.434102][ T309] getname+0x19/0x20 [ 91.437993][ T309] do_sys_openat2+0xeb/0x7f0 [ 91.442573][ T309] ? mntput+0x5f/0xc0 [ 91.446545][ T309] ? path_put+0x57/0x60 [ 91.450693][ T309] ? do_sys_open+0xe0/0xe0 [ 91.455104][ T309] ? path_setxattr+0x1ae/0x290 [ 91.459862][ T309] __x64_sys_openat+0x136/0x160 [ 91.464728][ T309] x64_sys_call+0x219/0x9a0 [ 91.469225][ T309] do_syscall_64+0x4c/0xa0 [ 91.473633][ T309] ? clear_bhb_loop+0x50/0xa0 [ 91.478304][ T309] ? clear_bhb_loop+0x50/0xa0 [ 91.482973][ T309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 91.488870][ T309] RIP: 0033:0x7f34aaa99407 [ 91.493315][ T309] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 91.512914][ T309] RSP: 002b:00007ffcef88f8b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 91.521323][ T309] RAX: ffffffffffffffda RBX: 00007f34aa9ab880 RCX: 00007f34aaa99407 [ 91.529289][ T309] RDX: 0000000000080000 RSI: 00007ffcef88f980 RDI: ffffffffffffff9c [ 91.537252][ T309] RBP: 0000556f41cb18d0 R08: 0000000000000000 R09: 0000000000000000 [ 91.545221][ T309] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 91.553184][ T309] R13: 0000000000000001 R14: 0000556f2e6726d7 R15: 0000556f41eebbe0 [ 91.561156][ T309] [ 91.564166][ T367] CPU: 1 PID: 367 Comm: syz-executor Not tainted syzkaller #0 [ 91.564534][ T6] FAULT_INJECTION: forcing a failure. [ 91.564534][ T6] name failslab, interval 1, probability 10, space 0, times 24 [ 91.571623][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 91.571636][ T367] Call Trace: [ 91.571641][ T367] [ 91.571647][ T367] __dump_stack+0x21/0x30 [ 91.605080][ T367] dump_stack_lvl+0x110/0x170 [ 91.609755][ T367] ? show_regs_print_info+0x20/0x20 [ 91.614954][ T367] dump_stack+0x15/0x20 [ 91.619107][ T367] should_fail+0x3ab/0x500 [ 91.623516][ T367] __should_failslab+0xa4/0xe0 [ 91.628274][ T367] should_failslab+0x9/0x20 [ 91.631181][ T45] FAULT_INJECTION: forcing a failure. [ 91.631181][ T45] name failslab, interval 1, probability 10, space 0, times 23 [ 91.632785][ T367] slab_pre_alloc_hook+0x39/0xd0 [ 91.650441][ T367] ? __alloc_skb+0xe4/0x730 [ 91.654948][ T367] kmem_cache_alloc+0x44/0x260 [ 91.659714][ T367] ? fib6_nh_flush_exceptions+0x46a/0x480 [ 91.665431][ T367] __alloc_skb+0xe4/0x730 [ 91.669757][ T367] inet6_rt_notify+0x293/0x480 [ 91.674521][ T367] ? rt6_nh_dump_exceptions+0x6b0/0x6b0 [ 91.680059][ T367] ? call_fib_notifiers+0xa0/0xc0 [ 91.685076][ T367] fib6_del+0xb9e/0xf00 [ 91.689226][ T367] ? fib6_locate+0x520/0x520 [ 91.693832][ T367] ? fib6_ifdown+0x2e8/0x4e0 [ 91.698418][ T367] fib6_clean_node+0x2a1/0x540 [ 91.703172][ T367] ? node_free_rcu+0x30/0x30 [ 91.707752][ T367] ? sched_group_set_idle+0x600/0x600 [ 91.713112][ T367] fib6_walk_continue+0x54b/0x740 [ 91.718132][ T367] fib6_walk+0x153/0x290 [ 91.722364][ T367] fib6_clean_all+0x1a1/0x270 [ 91.727030][ T367] ? kvm_sched_clock_read+0x18/0x40 [ 91.732222][ T367] ? rt6_sync_down_dev+0x140/0x140 [ 91.737349][ T367] ? fib6_del+0xf00/0xf00 [ 91.741669][ T367] ? node_free_rcu+0x30/0x30 [ 91.746247][ T367] ? rt6_sync_down_dev+0x140/0x140 [ 91.751348][ T367] ? try_to_wake_up+0x610/0x1150 [ 91.756278][ T367] rt6_disable_ip+0x115/0x730 [ 91.760947][ T367] ? __queue_work+0x903/0xc60 [ 91.765708][ T367] ? fib6_ifdown+0x4e0/0x4e0 [ 91.770292][ T367] ? __kasan_check_read+0x11/0x20 [ 91.775308][ T367] addrconf_ifdown+0x144/0x1910 [ 91.780163][ T367] ? nf_nat_masq_schedule+0x22d/0x4d0 [ 91.785526][ T367] ? addrconf_cleanup+0x1c0/0x1c0 [ 91.790546][ T367] ? __kasan_check_write+0x14/0x20 [ 91.795649][ T367] ? mutex_unlock+0x8f/0x230 [ 91.800231][ T367] ? __mutex_lock_slowpath+0x10/0x10 [ 91.805518][ T367] ? nf_nat_masq_schedule+0x4d0/0x4d0 [ 91.810882][ T367] ? masq_device_event+0xd0/0xd0 [ 91.815812][ T367] addrconf_notify+0x3bd/0xe00 [ 91.820566][ T367] raw_notifier_call_chain+0x90/0x100 [ 91.825975][ T367] dev_close_many+0x325/0x4d0 [ 91.830645][ T367] ? __dev_open+0x500/0x500 [ 91.835138][ T367] ? _raw_spin_lock+0x94/0xf0 [ 91.839811][ T367] ? __kasan_check_read+0x11/0x20 [ 91.844828][ T367] unregister_netdevice_many+0x477/0x1a00 [ 91.850545][ T367] ? __queue_work+0x903/0xc60 [ 91.855219][ T367] ? alloc_netdev_mqs+0xe20/0xe20 [ 91.860234][ T367] ? __queue_delayed_work+0x188/0x200 [ 91.865602][ T367] ? __kasan_check_read+0x11/0x20 [ 91.870617][ T367] unregister_netdevice_queue+0x2e1/0x320 [ 91.876328][ T367] ? __kasan_check_read+0x11/0x20 [ 91.881345][ T367] ? linkwatch_urgent_event+0x34d/0x460 [ 91.886883][ T367] ? list_netdevice+0x4c0/0x4c0 [ 91.891728][ T367] __tun_detach+0xc9d/0x1450 [ 91.896349][ T367] tun_chr_close+0x92/0x140 [ 91.900845][ T367] ? tun_chr_open+0x540/0x540 [ 91.905509][ T367] __fput+0x22b/0x900 [ 91.909484][ T367] ____fput+0x15/0x20 [ 91.913458][ T367] task_work_run+0x127/0x190 [ 91.918041][ T367] do_exit+0xb70/0x29a0 [ 91.922190][ T367] ? put_task_struct+0x90/0x90 [ 91.926946][ T367] ? __fdget_pos+0x1f7/0x380 [ 91.931529][ T367] ? ksys_write+0x1eb/0x260 [ 91.936025][ T367] do_group_exit+0x149/0x310 [ 91.940608][ T367] __x64_sys_exit_group+0x3f/0x40 [ 91.945622][ T367] x64_sys_call+0x832/0x9a0 [ 91.950144][ T367] do_syscall_64+0x4c/0xa0 [ 91.954552][ T367] ? clear_bhb_loop+0x50/0xa0 [ 91.959219][ T367] ? clear_bhb_loop+0x50/0xa0 [ 91.963884][ T367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 91.969769][ T367] RIP: 0033:0x7fd9921efe99 [ 91.974175][ T367] Code: Unable to access opcode bytes at RIP 0x7fd9921efe6f. [ 91.981525][ T367] RSP: 002b:00007fffce68c758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 91.989928][ T367] RAX: ffffffffffffffda RBX: 00007fd99228532f RCX: 00007fd9921efe99 [ 91.997939][ T367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 92.005903][ T367] RBP: 000000000000000c R08: 0000000000000000 R09: 00007fd99228530a [ 92.013873][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffce68d9b0 [ 92.021836][ T367] R13: 00007fd99228530a R14: 000000000000fcc3 R15: 00007fffce68d9f0 [ 92.029802][ T367] [ 92.032817][ T45] CPU: 0 PID: 45 Comm: kworker/u4:2 Not tainted syzkaller #0 [ 92.037213][ T64] FAULT_INJECTION: forcing a failure. [ 92.037213][ T64] name failslab, interval 1, probability 10, space 0, times 22 [ 92.040183][ T45] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 92.063014][ T45] Workqueue: writeback wb_workfn (flush-8:0) [ 92.069006][ T45] Call Trace: [ 92.072276][ T45] [ 92.075193][ T45] __dump_stack+0x21/0x30 [ 92.079511][ T45] dump_stack_lvl+0x110/0x170 [ 92.084178][ T45] ? show_regs_print_info+0x20/0x20 [ 92.089367][ T45] ? prandom_u32+0x24d/0x290 [ 92.093946][ T45] dump_stack+0x15/0x20 [ 92.098090][ T45] should_fail+0x3ab/0x500 [ 92.102494][ T45] __should_failslab+0xa4/0xe0 [ 92.107252][ T45] should_failslab+0x9/0x20 [ 92.111744][ T45] slab_pre_alloc_hook+0x39/0xd0 [ 92.116676][ T45] ? mempool_alloc_slab+0x1d/0x30 [ 92.121691][ T45] kmem_cache_alloc+0x44/0x260 [ 92.126473][ T45] ? mempool_free+0x330/0x330 [ 92.131139][ T45] mempool_alloc_slab+0x1d/0x30 [ 92.136009][ T45] mempool_alloc+0x167/0x4c0 [ 92.140593][ T45] ? finish_task_switch+0x16b/0x790 [ 92.145800][ T45] ? mempool_resize+0x880/0x880 [ 92.150642][ T45] ? release_firmware_map_entry+0x190/0x190 [ 92.156527][ T45] sg_pool_alloc+0xb0/0xe0 [ 92.160944][ T45] __sg_alloc_table+0x1c1/0x6d0 [ 92.165786][ T45] sg_alloc_table_chained+0x8b/0x1e0 [ 92.171060][ T45] ? sg_alloc_table_chained+0x1e0/0x1e0 [ 92.176599][ T45] scsi_alloc_sgtables+0x292/0x8a0 [ 92.181706][ T45] ? scsi_io_completion_action+0xce0/0xce0 [ 92.187501][ T45] ? dump_stack_lvl+0x144/0x170 [ 92.192343][ T45] ? show_regs_print_info+0x20/0x20 [ 92.197531][ T45] sd_init_command+0x60e/0x2610 [ 92.202376][ T45] scsi_queue_rq+0x176e/0x31c0 [ 92.207136][ T45] blk_mq_dispatch_rq_list+0xa06/0x1c50 [ 92.212680][ T45] ? blk_mq_get_driver_tag+0x920/0x920 [ 92.218133][ T45] blk_mq_do_dispatch_sched+0xadf/0xc90 [ 92.223674][ T45] ? blk_mq_exit_sched+0x590/0x590 [ 92.228781][ T45] __blk_mq_sched_dispatch_requests+0x32c/0x410 [ 92.235010][ T45] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0 [ 92.241340][ T45] blk_mq_sched_dispatch_requests+0x102/0x1c0 [ 92.247455][ T45] __blk_mq_run_hw_queue+0xf3/0x170 [ 92.252651][ T45] __blk_mq_delay_run_hw_queue+0x17e/0x420 [ 92.258462][ T45] ? blk_mq_delay_run_hw_queue+0x30/0x30 [ 92.264090][ T45] ? sbitmap_any_bit_set+0x119/0x160 [ 92.269367][ T45] blk_mq_run_hw_queue+0x282/0x3a0 [ 92.274473][ T45] blk_mq_sched_insert_requests+0x1cd/0x340 [ 92.280358][ T45] blk_mq_flush_plug_list+0x4e2/0x6b0 [ 92.285914][ T45] ? blk_mq_insert_requests+0x340/0x340 [ 92.291457][ T45] ? down_read_trylock+0x317/0x630 [ 92.296564][ T45] blk_flush_plug_list+0x404/0x450 [ 92.301675][ T45] ? blk_check_plugged+0x270/0x270 [ 92.306790][ T45] ? up_read+0x56/0x1d0 [ 92.310965][ T45] blk_finish_plug+0x5d/0x80 [ 92.315557][ T45] wb_writeback+0x917/0x990 [ 92.320057][ T45] ? inode_cgwb_move_to_attached+0x3b0/0x3b0 [ 92.326031][ T45] ? set_worker_desc+0x1ba/0x1f0 [ 92.330960][ T45] ? __kasan_check_write+0x14/0x20 [ 92.336069][ T45] ? cpumask_next+0x7c/0xa0 [ 92.340570][ T45] wb_workfn+0xa49/0xf30 [ 92.344808][ T45] ? inode_wait_for_writeback+0x220/0x220 [ 92.350518][ T45] ? compat_start_thread+0x20/0x20 [ 92.355617][ T45] ? finish_task_switch+0x16b/0x790 [ 92.360812][ T45] ? switch_mm_irqs_off+0x730/0x960 [ 92.366021][ T45] ? __schedule+0xbd7/0x14a0 [ 92.370611][ T45] process_one_work+0x6c8/0xbb0 [ 92.375464][ T45] worker_thread+0xaa0/0x1250 [ 92.380140][ T45] kthread+0x3f5/0x4f0 [ 92.384200][ T45] ? worker_clr_flags+0x190/0x190 [ 92.389220][ T45] ? kthread_blkcg+0xd0/0xd0 [ 92.393802][ T45] ret_from_fork+0x1f/0x30 [ 92.398209][ T45] [ 92.401218][ T64] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0 [ 92.408518][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 92.418569][ T64] Call Trace: [ 92.421878][ T64] [ 92.424806][ T64] __dump_stack+0x21/0x30 [ 92.429130][ T64] dump_stack_lvl+0x110/0x170 [ 92.433802][ T64] ? show_regs_print_info+0x20/0x20 [ 92.438991][ T64] ? prandom_u32+0x24d/0x290 [ 92.443574][ T64] dump_stack+0x15/0x20 [ 92.447717][ T64] should_fail+0x3ab/0x500 [ 92.452127][ T64] __should_failslab+0xa4/0xe0 [ 92.456894][ T64] should_failslab+0x9/0x20 [ 92.461393][ T64] slab_pre_alloc_hook+0x39/0xd0 [ 92.466324][ T64] ? mempool_alloc_slab+0x1d/0x30 [ 92.471340][ T64] kmem_cache_alloc+0x44/0x260 [ 92.476095][ T64] ? enqueue_task_fair+0xaf1/0x2130 [ 92.481284][ T64] ? mempool_free+0x330/0x330 [ 92.485951][ T64] mempool_alloc_slab+0x1d/0x30 [ 92.490795][ T64] mempool_alloc+0x167/0x4c0 [ 92.495395][ T64] ? sched_group_set_idle+0x600/0x600 [ 92.500817][ T64] ? mempool_resize+0x880/0x880 [ 92.505762][ T64] ? psi_task_change+0x213/0x370 [ 92.510707][ T64] sg_pool_alloc+0xb0/0xe0 [ 92.515302][ T64] __sg_alloc_table+0x1c1/0x6d0 [ 92.520164][ T64] sg_alloc_table_chained+0x8b/0x1e0 [ 92.525458][ T64] ? sg_alloc_table_chained+0x1e0/0x1e0 [ 92.527439][ T309] FAULT_INJECTION: forcing a failure. [ 92.527439][ T309] name failslab, interval 1, probability 10, space 0, times 20 [ 92.531006][ T64] scsi_alloc_sgtables+0x292/0x8a0 [ 92.548932][ T64] ? scsi_io_completion_action+0xce0/0xce0 [ 92.554947][ T64] sd_init_command+0x60e/0x2610 [ 92.559794][ T64] ? unwind_next_frame+0x39e/0x660 [ 92.564899][ T64] scsi_queue_rq+0x176e/0x31c0 [ 92.569665][ T64] blk_mq_dispatch_rq_list+0xa06/0x1c50 [ 92.575215][ T64] ? blk_mq_get_driver_tag+0x920/0x920 [ 92.580667][ T64] blk_mq_do_dispatch_sched+0xadf/0xc90 [ 92.586213][ T64] ? blk_mq_exit_sched+0x590/0x590 [ 92.591316][ T64] ? submit_bio_checks+0xb50/0x11e0 [ 92.596510][ T64] ? blk_mq_try_issue_list_directly+0x490/0x490 [ 92.602777][ T64] __blk_mq_sched_dispatch_requests+0x32c/0x410 [ 92.609011][ T64] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0 [ 92.615248][ T64] blk_mq_sched_dispatch_requests+0x102/0x1c0 [ 92.621322][ T64] __blk_mq_run_hw_queue+0xf3/0x170 [ 92.626513][ T64] __blk_mq_delay_run_hw_queue+0x17e/0x420 [ 92.632314][ T64] ? blk_mq_delay_run_hw_queue+0x30/0x30 [ 92.637943][ T64] ? sbitmap_any_bit_set+0x119/0x160 [ 92.643224][ T64] blk_mq_run_hw_queue+0x282/0x3a0 [ 92.648334][ T64] blk_mq_sched_insert_requests+0x1cd/0x340 [ 92.654249][ T64] blk_mq_flush_plug_list+0x4e2/0x6b0 [ 92.659616][ T64] ? blk_mq_insert_requests+0x340/0x340 [ 92.665155][ T64] ? blkcg_set_ioprio+0x1f6/0x320 [ 92.670171][ T64] ? submit_bio+0x367/0x620 [ 92.674669][ T64] blk_flush_plug_list+0x404/0x450 [ 92.679778][ T64] ? bio_add_page+0x2de/0x460 [ 92.684449][ T64] ? __kasan_check_write+0x14/0x20 [ 92.689551][ T64] ? blk_check_plugged+0x270/0x270 [ 92.694656][ T64] ? _raw_write_lock+0x94/0xf0 [ 92.699413][ T64] ? _raw_write_trylock+0x150/0x150 [ 92.704601][ T64] ? _raw_read_unlock+0x25/0x40 [ 92.709449][ T64] blk_finish_plug+0x5d/0x80 [ 92.714030][ T64] jbd2_journal_commit_transaction+0x2dcd/0x5650 [ 92.720360][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 92.727106][ T64] ? __switch_to+0x56c/0x1070 [ 92.731768][ T64] ? compat_start_thread+0x20/0x20 [ 92.736875][ T64] ? _raw_spin_unlock+0x4d/0x70 [ 92.741730][ T64] ? _raw_spin_lock+0xf0/0xf0 [ 92.746504][ T64] ? __schedule+0xbd7/0x14a0 [ 92.751098][ T64] ? __kasan_check_write+0x14/0x20 [ 92.756199][ T64] ? detach_if_pending+0x18f/0x300 [ 92.761150][ C0] FAULT_INJECTION: forcing a failure. [ 92.761150][ C0] name failslab, interval 1, probability 10, space 0, times 19 [ 92.761297][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 92.779864][ T64] ? del_timer_sync+0x144/0x1a0 [ 92.784717][ T64] kjournald2+0x43d/0x860 [ 92.789071][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 92.794261][ T64] ? io_schedule+0xe0/0xe0 [ 92.798760][ T64] ? __kasan_check_read+0x11/0x20 [ 92.803781][ T64] ? __kthread_parkme+0xab/0x1f0 [ 92.808717][ T64] kthread+0x3f5/0x4f0 [ 92.812780][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 92.818002][ T64] ? kthread_blkcg+0xd0/0xd0 [ 92.822583][ T64] ret_from_fork+0x1f/0x30 [ 92.826996][ T64] [ 92.830005][ C0] CPU: 0 PID: 266 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 92.830074][ C1] FAULT_INJECTION: forcing a failure. [ 92.830074][ C1] name failslab, interval 1, probability 10, space 0, times 19 [ 92.837558][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 92.837573][ C0] Workqueue: events_unbound toggle_allocation_gate [ 92.866874][ C0] Call Trace: [ 92.870146][ C0] [ 92.872983][ C0] __dump_stack+0x21/0x30 [ 92.877318][ C0] dump_stack_lvl+0x110/0x170 [ 92.881990][ C0] ? show_regs_print_info+0x20/0x20 [ 92.887181][ C0] ? prandom_u32+0x24d/0x290 [ 92.891766][ C0] dump_stack+0x15/0x20 [ 92.895914][ C0] should_fail+0x3ab/0x500 [ 92.900359][ C0] __should_failslab+0xa4/0xe0 [ 92.905121][ C0] should_failslab+0x9/0x20 [ 92.909651][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 92.914587][ C0] ? __alloc_skb+0xe4/0x730 [ 92.919196][ C0] kmem_cache_alloc+0x44/0x260 [ 92.923955][ C0] __alloc_skb+0xe4/0x730 [ 92.928278][ C0] ndisc_send_rs+0x310/0x960 [ 92.932870][ C0] addrconf_rs_timer+0x35a/0x600 [ 92.937801][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 92.943861][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 92.949428][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 92.955492][ C0] call_timer_fn+0x38/0x290 [ 92.959992][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 92.966054][ C0] __run_timers+0x637/0x9a0 [ 92.970554][ C0] ? calc_index+0x200/0x200 [ 92.975054][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 92.979902][ C0] run_timer_softirq+0x6a/0xf0 [ 92.984662][ C0] handle_softirqs+0x250/0x560 [ 92.989427][ C0] ? irqtime_account_irq+0xbe/0x390 [ 92.994621][ C0] __irq_exit_rcu+0x52/0xf0 [ 92.999123][ C0] irq_exit_rcu+0x9/0x10 [ 93.003357][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 93.009014][ C0] [ 93.011938][ C0] [ 93.014861][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 93.020836][ C0] RIP: 0010:smp_call_function_many_cond+0x8ad/0x9e0 [ 93.027422][ C0] Code: 0f b6 44 05 00 84 c0 0f 85 9b 00 00 00 41 8b 1f 89 de 83 e6 01 31 ff e8 31 48 0a 00 83 e3 01 75 07 e8 77 44 0a 00 eb 42 f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 75 10 41 f7 [ 93.047023][ C0] RSP: 0018:ffffc90000a37860 EFLAGS: 00000293 [ 93.053087][ C0] RAX: ffffffff815f728f RBX: 0000000000000001 RCX: ffff88811d98a780 [ 93.061054][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 93.069017][ C0] RBP: ffffc90000a37978 R08: ffff8881f7038e97 R09: 1ffff1103ee071d2 [ 93.076985][ C0] R10: dffffc0000000000 R11: ffffed103ee071d3 R12: ffff8881f7038e80 [ 93.084952][ C0] R13: 1ffff1103ee2784d R14: 0000000000000001 R15: ffff8881f713c268 [ 93.092921][ C0] ? smp_call_function_many_cond+0x8cf/0x9e0 [ 93.098906][ C0] ? text_poke_sync+0x30/0x30 [ 93.103576][ C0] ? smp_call_function_many+0x40/0x40 [ 93.108941][ C0] ? __kmalloc_track_caller+0x75/0x2c0 [ 93.114398][ C0] ? text_poke+0x20/0x20 [ 93.118639][ C0] ? preempt_schedule_thunk+0x16/0x18 [ 93.124004][ C0] ? text_poke_sync+0x30/0x30 [ 93.128675][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 93.133872][ C0] text_poke_bp_batch+0x420/0x600 [ 93.138886][ C0] ? text_poke_loc_init+0x560/0x560 [ 93.144077][ C0] ? __kasan_check_write+0x14/0x20 [ 93.149185][ C0] ? mutex_lock+0x9b/0x1c0 [ 93.153601][ C0] ? wait_for_completion_killable_timeout+0x10/0x10 [ 93.160186][ C0] ? text_poke_queue+0xde/0x1a0 [ 93.165034][ C0] text_poke_finish+0x1a/0x30 [ 93.169705][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 93.175683][ C0] __jump_label_update+0x38f/0x3b0 [ 93.180800][ C0] jump_label_update+0x39b/0x450 [ 93.185735][ C0] static_key_disable_cpuslocked+0xc5/0x1a0 [ 93.191628][ C0] static_key_disable+0x1a/0x30 [ 93.196476][ C0] toggle_allocation_gate+0x3af/0x440 [ 93.201844][ C0] ? kfence_debugfs_init+0x70/0x70 [ 93.206948][ C0] ? _raw_spin_unlock+0x4d/0x70 [ 93.211804][ C0] ? finish_task_switch+0x16b/0x790 [ 93.217001][ C0] ? switch_mm_irqs_off+0x730/0x960 [ 93.222194][ C0] ? __schedule+0xbd7/0x14a0 [ 93.226785][ C0] process_one_work+0x6c8/0xbb0 [ 93.231634][ C0] worker_thread+0xaa0/0x1250 [ 93.236310][ C0] kthread+0x3f5/0x4f0 [ 93.240371][ C0] ? worker_clr_flags+0x190/0x190 [ 93.245394][ C0] ? kthread_blkcg+0xd0/0xd0 [ 93.249978][ C0] ret_from_fork+0x1f/0x30 [ 93.254421][ C0] [ 93.257444][ C1] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0 [ 93.257535][ C0] FAULT_INJECTION: forcing a failure. [ 93.257535][ C0] name failslab, interval 1, probability 10, space 0, times 18 [ 93.264728][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 93.264742][ C1] Call Trace: [ 93.264748][ C1] [ 93.264755][ C1] __dump_stack+0x21/0x30 [ 93.297923][ C1] dump_stack_lvl+0x110/0x170 [ 93.302597][ C1] ? show_regs_print_info+0x20/0x20 [ 93.307795][ C1] ? prandom_u32+0x24d/0x290 [ 93.312420][ C1] dump_stack+0x15/0x20 [ 93.316577][ C1] should_fail+0x3ab/0x500 [ 93.321115][ C1] __should_failslab+0xa4/0xe0 [ 93.325897][ C1] should_failslab+0x9/0x20 [ 93.330407][ C1] slab_pre_alloc_hook+0x39/0xd0 [ 93.335342][ C1] ? __alloc_skb+0xe4/0x730 [ 93.339844][ C1] kmem_cache_alloc+0x44/0x260 [ 93.344603][ C1] __alloc_skb+0xe4/0x730 [ 93.348932][ C1] ndisc_send_rs+0x310/0x960 [ 93.353531][ C1] ? ndisc_send_rs+0x131/0x960 [ 93.358289][ C1] addrconf_rs_timer+0x35a/0x600 [ 93.363223][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 93.369284][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 93.374307][ C1] ? _raw_spin_lock_irqsave+0x130/0x130 [ 93.379852][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 93.385917][ C1] call_timer_fn+0x38/0x290 [ 93.390419][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 93.396494][ C1] __run_timers+0x637/0x9a0 [ 93.400995][ C1] ? sched_clock_cpu+0x18/0x3d0 [ 93.405844][ C1] ? calc_index+0x200/0x200 [ 93.410346][ C1] ? asm_common_interrupt+0x27/0x40 [ 93.415548][ C1] run_timer_softirq+0x6a/0xf0 [ 93.420312][ C1] handle_softirqs+0x250/0x560 [ 93.425072][ C1] ? irqtime_account_irq+0xbe/0x390 [ 93.430265][ C1] __irq_exit_rcu+0x52/0xf0 [ 93.434774][ C1] irq_exit_rcu+0x9/0x10 [ 93.439014][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 93.444644][ C1] [ 93.447566][ C1] [ 93.450516][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 93.456494][ C1] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 93.461949][ C1] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 93.481550][ C1] RSP: 0018:ffffc900009369e0 EFLAGS: 00000293 [ 93.487644][ C1] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff88810b4e8000 [ 93.495615][ C1] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 93.503578][ C1] RBP: ffffc90000936a68 R08: 0000000000000003 R09: 0000000000000004 [ 93.511543][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 93.519514][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000126d3c [ 93.527484][ C1] ? dump_stack_lvl+0x13b/0x170 [ 93.532338][ C1] ? show_regs_print_info+0x20/0x20 [ 93.537562][ C1] ? prandom_u32+0x24d/0x290 [ 93.542150][ C1] dump_stack+0x15/0x20 [ 93.546302][ C1] should_fail+0x3ab/0x500 [ 93.550713][ C1] __should_failslab+0xa4/0xe0 [ 93.555476][ C1] should_failslab+0x9/0x20 [ 93.559977][ C1] slab_pre_alloc_hook+0x39/0xd0 [ 93.564913][ C1] ? mempool_alloc_slab+0x1d/0x30 [ 93.569935][ C1] kmem_cache_alloc+0x44/0x260 [ 93.574734][ C1] ? enqueue_task_fair+0xaf1/0x2130 [ 93.579930][ C1] ? mempool_free+0x330/0x330 [ 93.584601][ C1] mempool_alloc_slab+0x1d/0x30 [ 93.589446][ C1] mempool_alloc+0x167/0x4c0 [ 93.594035][ C1] ? sched_group_set_idle+0x600/0x600 [ 93.599408][ C1] ? mempool_resize+0x880/0x880 [ 93.604258][ C1] ? psi_task_change+0x213/0x370 [ 93.609193][ C1] sg_pool_alloc+0xb0/0xe0 [ 93.613607][ C1] __sg_alloc_table+0x1c1/0x6d0 [ 93.618462][ C1] sg_alloc_table_chained+0x8b/0x1e0 [ 93.623746][ C1] ? sg_alloc_table_chained+0x1e0/0x1e0 [ 93.629287][ C1] scsi_alloc_sgtables+0x292/0x8a0 [ 93.634399][ C1] ? scsi_io_completion_action+0xce0/0xce0 [ 93.640203][ C1] sd_init_command+0x60e/0x2610 [ 93.645050][ C1] ? unwind_next_frame+0x39e/0x660 [ 93.650162][ C1] scsi_queue_rq+0x176e/0x31c0 [ 93.654925][ C1] blk_mq_dispatch_rq_list+0xa06/0x1c50 [ 93.660485][ C1] ? blk_mq_get_driver_tag+0x920/0x920 [ 93.666044][ C1] blk_mq_do_dispatch_sched+0xadf/0xc90 [ 93.671591][ C1] ? blk_mq_exit_sched+0x590/0x590 [ 93.676698][ C1] ? submit_bio_checks+0xb50/0x11e0 [ 93.681983][ C1] ? blk_mq_try_issue_list_directly+0x490/0x490 [ 93.688220][ C1] __blk_mq_sched_dispatch_requests+0x32c/0x410 [ 93.694462][ C1] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0 [ 93.700741][ C1] blk_mq_sched_dispatch_requests+0x102/0x1c0 [ 93.706803][ C1] __blk_mq_run_hw_queue+0xf3/0x170 [ 93.712022][ C1] __blk_mq_delay_run_hw_queue+0x17e/0x420 [ 93.717829][ C1] ? blk_mq_delay_run_hw_queue+0x30/0x30 [ 93.723468][ C1] ? sbitmap_any_bit_set+0x119/0x160 [ 93.728748][ C1] blk_mq_run_hw_queue+0x282/0x3a0 [ 93.733869][ C1] blk_mq_sched_insert_requests+0x1cd/0x340 [ 93.739758][ C1] blk_mq_flush_plug_list+0x4e2/0x6b0 [ 93.745129][ C1] ? blk_mq_insert_requests+0x340/0x340 [ 93.750675][ C1] ? blkcg_set_ioprio+0x1f6/0x320 [ 93.755693][ C1] ? submit_bio+0x367/0x620 [ 93.760194][ C1] blk_flush_plug_list+0x404/0x450 [ 93.765388][ C1] ? bio_add_page+0x2de/0x460 [ 93.770089][ C1] ? __kasan_check_write+0x14/0x20 [ 93.775201][ C1] ? blk_check_plugged+0x270/0x270 [ 93.780343][ C1] ? _raw_write_lock+0x94/0xf0 [ 93.785099][ C1] ? _raw_write_trylock+0x150/0x150 [ 93.790289][ C1] ? _raw_read_unlock+0x25/0x40 [ 93.795130][ C1] blk_finish_plug+0x5d/0x80 [ 93.799718][ C1] jbd2_journal_commit_transaction+0x2dcd/0x5650 [ 93.806045][ C1] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 93.812802][ C1] ? __switch_to+0x56c/0x1070 [ 93.817477][ C1] ? compat_start_thread+0x20/0x20 [ 93.822584][ C1] ? _raw_spin_unlock+0x4d/0x70 [ 93.827431][ C1] ? _raw_spin_lock+0xf0/0xf0 [ 93.832100][ C1] ? __schedule+0xbd7/0x14a0 [ 93.836688][ C1] ? __kasan_check_write+0x14/0x20 [ 93.841794][ C1] ? detach_if_pending+0x18f/0x300 [ 93.846912][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 93.852726][ C1] ? del_timer_sync+0x144/0x1a0 [ 93.857667][ C1] kjournald2+0x43d/0x860 [ 93.862001][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 93.867195][ C1] ? io_schedule+0xe0/0xe0 [ 93.871606][ C1] ? __kasan_check_read+0x11/0x20 [ 93.876629][ C1] ? __kthread_parkme+0xab/0x1f0 [ 93.881564][ C1] kthread+0x3f5/0x4f0 [ 93.885632][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 93.890837][ C1] ? kthread_blkcg+0xd0/0xd0 [ 93.895433][ C1] ret_from_fork+0x1f/0x30 [ 93.899850][ C1] [ 93.902858][ C0] CPU: 0 PID: 266 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 93.902947][ C1] FAULT_INJECTION: forcing a failure. [ 93.902947][ C1] name failslab, interval 1, probability 10, space 0, times 17 [ 93.910317][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 93.933098][ C0] Workqueue: events_unbound toggle_allocation_gate [ 93.939608][ C0] Call Trace: [ 93.942880][ C0] [ 93.945714][ C0] __dump_stack+0x21/0x30 [ 93.950041][ C0] dump_stack_lvl+0x110/0x170 [ 93.954716][ C0] ? show_regs_print_info+0x20/0x20 [ 93.959907][ C0] ? prandom_u32+0x24d/0x290 [ 93.964495][ C0] dump_stack+0x15/0x20 [ 93.968654][ C0] should_fail+0x3ab/0x500 [ 93.973088][ C0] __should_failslab+0xa4/0xe0 [ 93.977852][ C0] should_failslab+0x9/0x20 [ 93.982356][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 93.987295][ C0] kmem_cache_alloc_trace+0x48/0x270 [ 93.992573][ C0] ? dst_cow_metrics_generic+0x55/0x1c0 [ 93.998118][ C0] dst_cow_metrics_generic+0x55/0x1c0 [ 94.003487][ C0] icmp6_dst_alloc+0x35f/0x520 [ 94.008249][ C0] ndisc_send_skb+0x2a9/0xcf0 [ 94.012920][ C0] ? ret_from_fork+0x1f/0x30 [ 94.017504][ C0] ? ndisc_alloc_skb+0x290/0x290 [ 94.022441][ C0] ndisc_send_rs+0x711/0x960 [ 94.027025][ C0] addrconf_rs_timer+0x35a/0x600 [ 94.031959][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 94.038033][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 94.043078][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 94.048639][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 94.054703][ C0] call_timer_fn+0x38/0x290 [ 94.059204][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 94.065300][ C0] __run_timers+0x637/0x9a0 [ 94.069833][ C0] ? calc_index+0x200/0x200 [ 94.074333][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 94.079187][ C0] run_timer_softirq+0x6a/0xf0 [ 94.083953][ C0] handle_softirqs+0x250/0x560 [ 94.088712][ C0] ? irqtime_account_irq+0xbe/0x390 [ 94.093904][ C0] __irq_exit_rcu+0x52/0xf0 [ 94.098405][ C0] irq_exit_rcu+0x9/0x10 [ 94.102642][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 94.108268][ C0] [ 94.111186][ C0] [ 94.114109][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 94.120171][ C0] RIP: 0010:smp_call_function_many_cond+0x8ad/0x9e0 [ 94.126809][ C0] Code: 0f b6 44 05 00 84 c0 0f 85 9b 00 00 00 41 8b 1f 89 de 83 e6 01 31 ff e8 31 48 0a 00 83 e3 01 75 07 e8 77 44 0a 00 eb 42 f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 75 10 41 f7 [ 94.146414][ C0] RSP: 0018:ffffc90000a37860 EFLAGS: 00000293 [ 94.152605][ C0] RAX: ffffffff815f728f RBX: 0000000000000001 RCX: ffff88811d98a780 [ 94.160582][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 94.168575][ C0] RBP: ffffc90000a37978 R08: ffff8881f7038e97 R09: 1ffff1103ee071d2 [ 94.176571][ C0] R10: dffffc0000000000 R11: ffffed103ee071d3 R12: ffff8881f7038e80 [ 94.184541][ C0] R13: 1ffff1103ee2784d R14: 0000000000000001 R15: ffff8881f713c268 [ 94.192515][ C0] ? smp_call_function_many_cond+0x8cf/0x9e0 [ 94.198584][ C0] ? text_poke_sync+0x30/0x30 [ 94.203293][ C0] ? smp_call_function_many+0x40/0x40 [ 94.208661][ C0] ? __kmalloc_track_caller+0x75/0x2c0 [ 94.214117][ C0] ? text_poke+0x20/0x20 [ 94.218352][ C0] ? preempt_schedule_thunk+0x16/0x18 [ 94.223751][ C0] ? text_poke_sync+0x30/0x30 [ 94.228426][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 94.233531][ C0] text_poke_bp_batch+0x420/0x600 [ 94.238582][ C0] ? text_poke_loc_init+0x560/0x560 [ 94.243773][ C0] ? __kasan_check_write+0x14/0x20 [ 94.248874][ C0] ? mutex_lock+0x9b/0x1c0 [ 94.253285][ C0] ? wait_for_completion_killable_timeout+0x10/0x10 [ 94.259953][ C0] ? text_poke_queue+0xde/0x1a0 [ 94.264802][ C0] text_poke_finish+0x1a/0x30 [ 94.269472][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 94.275446][ C0] __jump_label_update+0x38f/0x3b0 [ 94.280557][ C0] jump_label_update+0x39b/0x450 [ 94.285497][ C0] static_key_disable_cpuslocked+0xc5/0x1a0 [ 94.291396][ C0] static_key_disable+0x1a/0x30 [ 94.296242][ C0] toggle_allocation_gate+0x3af/0x440 [ 94.301608][ C0] ? kfence_debugfs_init+0x70/0x70 [ 94.306712][ C0] ? _raw_spin_unlock+0x4d/0x70 [ 94.311557][ C0] ? finish_task_switch+0x16b/0x790 [ 94.316760][ C0] ? switch_mm_irqs_off+0x730/0x960 [ 94.321973][ C0] ? __schedule+0xbd7/0x14a0 [ 94.326569][ C0] process_one_work+0x6c8/0xbb0 [ 94.331424][ C0] worker_thread+0xaa0/0x1250 [ 94.336097][ C0] kthread+0x3f5/0x4f0 [ 94.340160][ C0] ? worker_clr_flags+0x190/0x190 [ 94.345322][ C0] ? kthread_blkcg+0xd0/0xd0 [ 94.349921][ C0] ret_from_fork+0x1f/0x30 [ 94.354334][ C0] [ 94.357343][ C1] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0 [ 94.357868][ T2] FAULT_INJECTION: forcing a failure. [ 94.357868][ T2] name failslab, interval 1, probability 10, space 0, times 16 [ 94.364635][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 94.364648][ C1] Call Trace: [ 94.364654][ C1] [ 94.364660][ C1] __dump_stack+0x21/0x30 [ 94.398087][ C1] dump_stack_lvl+0x110/0x170 [ 94.402762][ C1] ? show_regs_print_info+0x20/0x20 [ 94.407953][ C1] dump_stack+0x15/0x20 [ 94.412102][ C1] should_fail+0x3ab/0x500 [ 94.416509][ C1] ? ndisc_send_rs+0x310/0x960 [ 94.421269][ C1] __should_failslab+0xa4/0xe0 [ 94.426032][ C1] should_failslab+0x9/0x20 [ 94.430532][ C1] slab_pre_alloc_hook+0x39/0xd0 [ 94.435467][ C1] ? ndisc_send_rs+0x310/0x960 [ 94.440225][ C1] ? ndisc_send_rs+0x310/0x960 [ 94.444989][ C1] __kmalloc_track_caller+0x6c/0x2c0 [ 94.450273][ C1] ? ndisc_send_rs+0x310/0x960 [ 94.455033][ C1] ? ndisc_send_rs+0x310/0x960 [ 94.459795][ C1] __alloc_skb+0x210/0x730 [ 94.464210][ C1] ndisc_send_rs+0x310/0x960 [ 94.468797][ C1] addrconf_rs_timer+0x35a/0x600 [ 94.473732][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 94.479795][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 94.485903][ C1] call_timer_fn+0x38/0x290 [ 94.490406][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 94.496596][ C1] __run_timers+0x637/0x9a0 [ 94.501099][ C1] ? sched_clock_cpu+0x18/0x3d0 [ 94.505945][ C1] ? calc_index+0x200/0x200 [ 94.510447][ C1] ? asm_common_interrupt+0x27/0x40 [ 94.515640][ C1] run_timer_softirq+0x6a/0xf0 [ 94.520402][ C1] handle_softirqs+0x250/0x560 [ 94.525162][ C1] ? irqtime_account_irq+0xbe/0x390 [ 94.530358][ C1] __irq_exit_rcu+0x52/0xf0 [ 94.534858][ C1] irq_exit_rcu+0x9/0x10 [ 94.539179][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 94.544862][ C1] [ 94.547782][ C1] [ 94.550722][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 94.556691][ C1] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 94.562143][ C1] Code: e6 00 02 00 00 31 ff e8 3a 97 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 92 be fc eb 06 e8 e5 92 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 94.581737][ C1] RSP: 0018:ffffc900009369e0 EFLAGS: 00000293 [ 94.587794][ C1] RAX: ffffffff84ab23fb RBX: ffffffff8564bda0 RCX: ffff88810b4e8000 [ 94.595779][ C1] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 94.603764][ C1] RBP: ffffc90000936a68 R08: 0000000000000003 R09: 0000000000000004 [ 94.611722][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000 [ 94.619682][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000126d3c [ 94.627733][ C1] ? dump_stack_lvl+0x13b/0x170 [ 94.632579][ C1] ? show_regs_print_info+0x20/0x20 [ 94.637762][ C1] ? prandom_u32+0x24d/0x290 [ 94.642337][ C1] dump_stack+0x15/0x20 [ 94.646480][ C1] should_fail+0x3ab/0x500 [ 94.650882][ C1] __should_failslab+0xa4/0xe0 [ 94.655637][ C1] should_failslab+0x9/0x20 [ 94.660128][ C1] slab_pre_alloc_hook+0x39/0xd0 [ 94.665053][ C1] ? mempool_alloc_slab+0x1d/0x30 [ 94.670074][ C1] kmem_cache_alloc+0x44/0x260 [ 94.674850][ C1] ? enqueue_task_fair+0xaf1/0x2130 [ 94.680041][ C1] ? mempool_free+0x330/0x330 [ 94.684706][ C1] mempool_alloc_slab+0x1d/0x30 [ 94.689545][ C1] mempool_alloc+0x167/0x4c0 [ 94.694125][ C1] ? sched_group_set_idle+0x600/0x600 [ 94.699492][ C1] ? mempool_resize+0x880/0x880 [ 94.701260][ C0] FAULT_INJECTION: forcing a failure. [ 94.701260][ C0] name failslab, interval 1, probability 10, space 0, times 16 [ 94.704332][ C1] ? psi_task_change+0x213/0x370 [ 94.721994][ C1] sg_pool_alloc+0xb0/0xe0 [ 94.726428][ C1] __sg_alloc_table+0x1c1/0x6d0 [ 94.731272][ C1] sg_alloc_table_chained+0x8b/0x1e0 [ 94.736553][ C1] ? sg_alloc_table_chained+0x1e0/0x1e0 [ 94.742094][ C1] scsi_alloc_sgtables+0x292/0x8a0 [ 94.747202][ C1] ? scsi_io_completion_action+0xce0/0xce0 [ 94.753007][ C1] sd_init_command+0x60e/0x2610 [ 94.757859][ C1] ? unwind_next_frame+0x39e/0x660 [ 94.762994][ C1] scsi_queue_rq+0x176e/0x31c0 [ 94.767765][ C1] blk_mq_dispatch_rq_list+0xa06/0x1c50 [ 94.773315][ C1] ? blk_mq_get_driver_tag+0x920/0x920 [ 94.778776][ C1] blk_mq_do_dispatch_sched+0xadf/0xc90 [ 94.784349][ C1] ? blk_mq_exit_sched+0x590/0x590 [ 94.789470][ C1] ? submit_bio_checks+0xb50/0x11e0 [ 94.794662][ C1] ? blk_mq_try_issue_list_directly+0x490/0x490 [ 94.800939][ C1] __blk_mq_sched_dispatch_requests+0x32c/0x410 [ 94.807174][ C1] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0 [ 94.813411][ C1] blk_mq_sched_dispatch_requests+0x102/0x1c0 [ 94.819563][ C1] __blk_mq_run_hw_queue+0xf3/0x170 [ 94.824758][ C1] __blk_mq_delay_run_hw_queue+0x17e/0x420 [ 94.830559][ C1] ? blk_mq_delay_run_hw_queue+0x30/0x30 [ 94.836186][ C1] ? sbitmap_any_bit_set+0x119/0x160 [ 94.841551][ C1] blk_mq_run_hw_queue+0x282/0x3a0 [ 94.846660][ C1] blk_mq_sched_insert_requests+0x1cd/0x340 [ 94.852551][ C1] blk_mq_flush_plug_list+0x4e2/0x6b0 [ 94.857966][ C1] ? blk_mq_insert_requests+0x340/0x340 [ 94.863507][ C1] ? blkcg_set_ioprio+0x1f6/0x320 [ 94.868526][ C1] ? submit_bio+0x367/0x620 [ 94.873027][ C1] blk_flush_plug_list+0x404/0x450 [ 94.878135][ C1] ? bio_add_page+0x2de/0x460 [ 94.882805][ C1] ? __kasan_check_write+0x14/0x20 [ 94.887909][ C1] ? blk_check_plugged+0x270/0x270 [ 94.893022][ C1] ? _raw_write_lock+0x94/0xf0 [ 94.897814][ C1] ? _raw_write_trylock+0x150/0x150 [ 94.903004][ C1] ? _raw_read_unlock+0x25/0x40 [ 94.907870][ C1] blk_finish_plug+0x5d/0x80 [ 94.912473][ C1] jbd2_journal_commit_transaction+0x2dcd/0x5650 [ 94.918799][ C1] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 94.925555][ C1] ? __switch_to+0x56c/0x1070 [ 94.930228][ C1] ? compat_start_thread+0x20/0x20 [ 94.935330][ C1] ? _raw_spin_unlock+0x4d/0x70 [ 94.940172][ C1] ? _raw_spin_lock+0xf0/0xf0 [ 94.944842][ C1] ? __schedule+0xbd7/0x14a0 [ 94.949428][ C1] ? __kasan_check_write+0x14/0x20 [ 94.954529][ C1] ? detach_if_pending+0x18f/0x300 [ 94.959638][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 94.965438][ C1] ? del_timer_sync+0x144/0x1a0 [ 94.970282][ C1] kjournald2+0x43d/0x860 [ 94.974608][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 94.979799][ C1] ? io_schedule+0xe0/0xe0 [ 94.984209][ C1] ? __kasan_check_read+0x11/0x20 [ 94.989229][ C1] ? __kthread_parkme+0xab/0x1f0 [ 94.994189][ C1] kthread+0x3f5/0x4f0 [ 94.998252][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 95.003440][ C1] ? kthread_blkcg+0xd0/0xd0 [ 95.008022][ C1] ret_from_fork+0x1f/0x30 [ 95.012433][ C1] [ 95.015443][ C0] CPU: 0 PID: 266 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 95.016413][ T367] FAULT_INJECTION: forcing a failure. [ 95.016413][ T367] name failslab, interval 1, probability 10, space 0, times 13 [ 95.022904][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 95.022917][ C0] Workqueue: events_unbound toggle_allocation_gate [ 95.022941][ C0] Call Trace: [ 95.022948][ C0] [ 95.058275][ C0] __dump_stack+0x21/0x30 [ 95.062652][ C0] dump_stack_lvl+0x110/0x170 [ 95.067319][ C0] ? show_regs_print_info+0x20/0x20 [ 95.072514][ C0] dump_stack+0x15/0x20 [ 95.076658][ C0] should_fail+0x3ab/0x500 [ 95.081100][ C0] ? ndisc_send_rs+0x310/0x960 [ 95.085858][ C0] __should_failslab+0xa4/0xe0 [ 95.090638][ C0] should_failslab+0x9/0x20 [ 95.095133][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 95.100064][ C0] ? ndisc_send_rs+0x310/0x960 [ 95.104821][ C0] ? ndisc_send_rs+0x310/0x960 [ 95.109589][ C0] __kmalloc_track_caller+0x6c/0x2c0 [ 95.114886][ C0] ? ndisc_send_rs+0x310/0x960 [ 95.119654][ C0] ? ndisc_send_rs+0x310/0x960 [ 95.124411][ C0] __alloc_skb+0x210/0x730 [ 95.128825][ C0] ndisc_send_rs+0x310/0x960 [ 95.133405][ C0] addrconf_rs_timer+0x35a/0x600 [ 95.138335][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 95.144397][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 95.149418][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 95.154956][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 95.161014][ C0] call_timer_fn+0x38/0x290 [ 95.165509][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 95.171566][ C0] __run_timers+0x637/0x9a0 [ 95.176079][ C0] ? calc_index+0x200/0x200 [ 95.180571][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 95.185411][ C0] run_timer_softirq+0x6a/0xf0 [ 95.190166][ C0] handle_softirqs+0x250/0x560 [ 95.194922][ C0] ? irqtime_account_irq+0xbe/0x390 [ 95.200112][ C0] __irq_exit_rcu+0x52/0xf0 [ 95.204603][ C0] irq_exit_rcu+0x9/0x10 [ 95.208834][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 95.214459][ C0] [ 95.217380][ C0] [ 95.220297][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 95.226279][ C0] RIP: 0010:smp_call_function_many_cond+0x8c1/0x9e0 [ 95.232870][ C0] Code: 01 31 ff e8 31 48 0a 00 83 e3 01 75 07 e8 77 44 0a 00 eb 42 f3 90 48 b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 75 10 <41> f7 07 01 00 00 00 74 1e e8 51 44 0a 00 eb da 44 89 f9 80 e1 07 [ 95.252468][ C0] RSP: 0018:ffffc90000a37860 EFLAGS: 00000246 [ 95.258525][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811d98a780 [ 95.266491][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 95.274451][ C0] RBP: ffffc90000a37978 R08: ffff8881f7038e97 R09: 1ffff1103ee071d2 [ 95.282416][ C0] R10: dffffc0000000000 R11: ffffed103ee071d3 R12: ffff8881f7038e80 [ 95.290380][ C0] R13: 1ffff1103ee2784d R14: 0000000000000001 R15: ffff8881f713c268 [ 95.298346][ C0] ? text_poke_sync+0x30/0x30 [ 95.303031][ C0] ? smp_call_function_many+0x40/0x40 [ 95.308416][ C0] ? __kmalloc_track_caller+0x74/0x2c0 [ 95.313884][ C0] ? text_poke+0x20/0x20 [ 95.318125][ C0] ? preempt_schedule_thunk+0x16/0x18 [ 95.323491][ C0] ? text_poke_sync+0x30/0x30 [ 95.328158][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 95.333265][ C0] text_poke_bp_batch+0x57f/0x600 [ 95.338280][ C0] ? text_poke_loc_init+0x560/0x560 [ 95.343472][ C0] ? __kasan_check_write+0x14/0x20 [ 95.348578][ C0] ? mutex_lock+0x9b/0x1c0 [ 95.352991][ C0] ? wait_for_completion_interruptible_timeout+0xf/0x10 [ 95.359917][ C0] ? text_poke_queue+0xde/0x1a0 [ 95.364764][ C0] text_poke_finish+0x1a/0x30 [ 95.369433][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 95.375416][ C0] __jump_label_update+0x38f/0x3b0 [ 95.380525][ C0] jump_label_update+0x39b/0x450 [ 95.385464][ C0] static_key_disable_cpuslocked+0xc5/0x1a0 [ 95.391355][ C0] static_key_disable+0x1a/0x30 [ 95.396203][ C0] toggle_allocation_gate+0x3af/0x440 [ 95.401570][ C0] ? kfence_debugfs_init+0x70/0x70 [ 95.406677][ C0] ? _raw_spin_unlock+0x4d/0x70 [ 95.411518][ C0] ? finish_task_switch+0x16b/0x790 [ 95.416708][ C0] ? switch_mm_irqs_off+0x730/0x960 [ 95.421916][ C0] ? __schedule+0xbd7/0x14a0 [ 95.426501][ C0] process_one_work+0x6c8/0xbb0 [ 95.431364][ C0] worker_thread+0xaa0/0x1250 [ 95.436038][ C0] kthread+0x3f5/0x4f0 [ 95.440098][ C0] ? worker_clr_flags+0x190/0x190 [ 95.445141][ C0] ? kthread_blkcg+0xd0/0xd0 [ 95.449722][ C0] ret_from_fork+0x1f/0x30 [ 95.454137][ C0] [ 95.457147][ T367] CPU: 1 PID: 367 Comm: syz-executor Not tainted syzkaller #0 [ 95.457402][ C0] FAULT_INJECTION: forcing a failure. [ 95.457402][ C0] name failslab, interval 1, probability 10, space 0, times 12 [ 95.464605][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 95.464615][ T367] Call Trace: [ 95.464621][ T367] [ 95.464627][ T367] __dump_stack+0x21/0x30 [ 95.497900][ T367] dump_stack_lvl+0x110/0x170 [ 95.502580][ T367] ? show_regs_print_info+0x20/0x20 [ 95.507769][ T367] dump_stack+0x15/0x20 [ 95.511913][ T367] should_fail+0x3ab/0x500 [ 95.516323][ T367] __should_failslab+0xa4/0xe0 [ 95.521081][ T367] should_failslab+0x9/0x20 [ 95.525574][ T367] slab_pre_alloc_hook+0x39/0xd0 [ 95.530507][ T367] ? __alloc_skb+0xe4/0x730 [ 95.535003][ T367] kmem_cache_alloc+0x44/0x260 [ 95.539758][ T367] ? fib6_nh_flush_exceptions+0x46a/0x480 [ 95.545470][ T367] __alloc_skb+0xe4/0x730 [ 95.549795][ T367] inet6_rt_notify+0x293/0x480 [ 95.554553][ T367] ? rt6_nh_dump_exceptions+0x6b0/0x6b0 [ 95.560093][ T367] ? call_fib_notifiers+0xa0/0xc0 [ 95.565108][ T367] fib6_del+0xb9e/0xf00 [ 95.569257][ T367] ? fib6_locate+0x520/0x520 [ 95.573838][ T367] ? _raw_spin_unlock+0x4d/0x70 [ 95.578686][ T367] ? fib6_ifdown+0x2e8/0x4e0 [ 95.583278][ T367] fib6_clean_node+0x2a1/0x540 [ 95.588036][ T367] ? node_free_rcu+0x30/0x30 [ 95.592620][ T367] ? __kasan_check_read+0x11/0x20 [ 95.597634][ T367] fib6_walk_continue+0x54b/0x740 [ 95.602654][ T367] fib6_walk+0x153/0x290 [ 95.606887][ T367] fib6_clean_all+0x1a1/0x270 [ 95.611551][ T367] ? kvm_sched_clock_read+0x18/0x40 [ 95.616743][ T367] ? rt6_sync_down_dev+0x140/0x140 [ 95.621848][ T367] ? fib6_del+0xf00/0xf00 [ 95.626167][ T367] ? node_free_rcu+0x30/0x30 [ 95.630748][ T367] ? rt6_sync_down_dev+0x140/0x140 [ 95.635853][ T367] ? try_to_wake_up+0x610/0x1150 [ 95.640785][ T367] rt6_disable_ip+0x115/0x730 [ 95.645461][ T367] ? __queue_work+0x903/0xc60 [ 95.650133][ T367] ? fib6_ifdown+0x4e0/0x4e0 [ 95.654717][ T367] ? __kasan_check_read+0x11/0x20 [ 95.659731][ T367] addrconf_ifdown+0x144/0x1910 [ 95.664594][ T367] ? nf_nat_masq_schedule+0x22d/0x4d0 [ 95.669960][ T367] ? addrconf_cleanup+0x1c0/0x1c0 [ 95.674976][ T367] ? __kasan_check_write+0x14/0x20 [ 95.680076][ T367] ? mutex_unlock+0x8f/0x230 [ 95.684668][ T367] ? __mutex_lock_slowpath+0x10/0x10 [ 95.689944][ T367] ? nf_nat_masq_schedule+0x4d0/0x4d0 [ 95.695305][ T367] ? masq_device_event+0xd0/0xd0 [ 95.700233][ T367] addrconf_notify+0x3bd/0xe00 [ 95.704989][ T367] raw_notifier_call_chain+0x90/0x100 [ 95.710354][ T367] dev_close_many+0x325/0x4d0 [ 95.715023][ T367] ? __dev_open+0x500/0x500 [ 95.719517][ T367] ? _raw_spin_lock+0x94/0xf0 [ 95.724186][ T367] ? __kasan_check_read+0x11/0x20 [ 95.729207][ T367] unregister_netdevice_many+0x477/0x1a00 [ 95.734965][ T367] ? __queue_work+0x903/0xc60 [ 95.739636][ T367] ? alloc_netdev_mqs+0xe20/0xe20 [ 95.744654][ T367] ? __queue_delayed_work+0x188/0x200 [ 95.750023][ T367] ? __kasan_check_read+0x11/0x20 [ 95.755055][ T367] unregister_netdevice_queue+0x2e1/0x320 [ 95.760768][ T367] ? __kasan_check_read+0x11/0x20 [ 95.765794][ T367] ? linkwatch_urgent_event+0x34d/0x460 [ 95.771334][ T367] ? list_netdevice+0x4c0/0x4c0 [ 95.776179][ T367] __tun_detach+0xc9d/0x1450 [ 95.780803][ T367] tun_chr_close+0x92/0x140 [ 95.785299][ T367] ? tun_chr_open+0x540/0x540 [ 95.789968][ T367] __fput+0x22b/0x900 [ 95.793943][ T367] ____fput+0x15/0x20 [ 95.797915][ T367] task_work_run+0x127/0x190 [ 95.802499][ T367] do_exit+0xb70/0x29a0 [ 95.806645][ T367] ? put_task_struct+0x90/0x90 [ 95.811399][ T367] ? __fdget_pos+0x1f7/0x380 [ 95.815980][ T367] ? ksys_write+0x1eb/0x260 [ 95.820478][ T367] do_group_exit+0x149/0x310 [ 95.825067][ T367] __x64_sys_exit_group+0x3f/0x40 [ 95.830088][ T367] x64_sys_call+0x832/0x9a0 [ 95.834581][ T367] do_syscall_64+0x4c/0xa0 [ 95.838987][ T367] ? clear_bhb_loop+0x50/0xa0 [ 95.843657][ T367] ? clear_bhb_loop+0x50/0xa0 [ 95.848325][ T367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 95.854216][ T367] RIP: 0033:0x7fd9921efe99 [ 95.858647][ T367] Code: Unable to access opcode bytes at RIP 0x7fd9921efe6f. [ 95.866003][ T367] RSP: 002b:00007fffce68c758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 95.874412][ T367] RAX: ffffffffffffffda RBX: 00007fd99228532f RCX: 00007fd9921efe99 [ 95.882379][ T367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 95.890341][ T367] RBP: 000000000000000c R08: 0000000000000000 R09: 00007fd99228530a [ 95.898304][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffce68d9b0 [ 95.906269][ T367] R13: 00007fd99228530a R14: 000000000000fcc3 R15: 00007fffce68d9f0 [ 95.914236][ T367] [ 95.917250][ C0] CPU: 0 PID: 266 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 95.917359][ T367] FAULT_INJECTION: forcing a failure. [ 95.917359][ T367] name failslab, interval 1, probability 10, space 0, times 11 [ 95.924710][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 95.924723][ C0] Workqueue: events_unbound toggle_allocation_gate [ 95.953983][ C0] Call Trace: [ 95.957256][ C0] [ 95.960096][ C0] __dump_stack+0x21/0x30 [ 95.964427][ C0] dump_stack_lvl+0x110/0x170 [ 95.969122][ C0] ? show_regs_print_info+0x20/0x20 [ 95.974354][ C0] ? prandom_u32+0x24d/0x290 [ 95.979051][ C0] dump_stack+0x15/0x20 [ 95.983203][ C0] should_fail+0x3ab/0x500 [ 95.987614][ C0] __should_failslab+0xa4/0xe0 [ 95.992373][ C0] should_failslab+0x9/0x20 [ 95.996875][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 96.001830][ C0] ? dst_alloc+0x15c/0x1d0 [ 96.006241][ C0] kmem_cache_alloc+0x44/0x260 [ 96.011005][ C0] ? ipv6_sysctl_rtcache_flush+0x100/0x100 [ 96.016801][ C0] dst_alloc+0x15c/0x1d0 [ 96.021046][ C0] icmp6_dst_alloc+0xec/0x520 [ 96.025717][ C0] ? security_sk_classify_flow+0x7b/0x90 [ 96.031348][ C0] ? icmpv6_flow_init+0xd2/0x130 [ 96.036292][ C0] ndisc_send_skb+0x2a9/0xcf0 [ 96.040964][ C0] ? ret_from_fork+0x1f/0x30 [ 96.045552][ C0] ? ndisc_alloc_skb+0x290/0x290 [ 96.050490][ C0] ? ndisc_send_rs+0x61f/0x960 [ 96.055267][ C0] ? memcpy+0x56/0x70 [ 96.059340][ C0] ndisc_send_rs+0x711/0x960 [ 96.063927][ C0] addrconf_rs_timer+0x35a/0x600 [ 96.068864][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 96.074928][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 96.079961][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 96.085543][ C0] ? wg_expired_send_keepalive+0x145/0x1b0 [ 96.091346][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 96.097413][ C0] call_timer_fn+0x38/0x290 [ 96.101911][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 96.107973][ C0] __run_timers+0x637/0x9a0 [ 96.112478][ C0] ? calc_index+0x200/0x200 [ 96.117196][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 96.122105][ C0] run_timer_softirq+0x6a/0xf0 [ 96.126883][ C0] handle_softirqs+0x250/0x560 [ 96.131682][ C0] ? irqtime_account_irq+0xbe/0x390 [ 96.136905][ C0] __irq_exit_rcu+0x52/0xf0 [ 96.141419][ C0] irq_exit_rcu+0x9/0x10 [ 96.145657][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 96.151286][ C0] [ 96.154208][ C0] [ 96.157137][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 96.163145][ C0] RIP: 0010:smp_call_function_many_cond+0x8c1/0x9e0 [ 96.169732][ C0] Code: 01 31 ff e8 31 48 0a 00 83 e3 01 75 07 e8 77 44 0a 00 eb 42 f3 90 48 b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 75 10 <41> f7 07 01 00 00 00 74 1e e8 51 44 0a 00 eb da 44 89 f9 80 e1 07 [ 96.189342][ C0] RSP: 0018:ffffc90000a37860 EFLAGS: 00000246 [ 96.195407][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811d98a780 [ 96.203380][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 96.211345][ C0] RBP: ffffc90000a37978 R08: ffff8881f7038e97 R09: 1ffff1103ee071d2 [ 96.219315][ C0] R10: dffffc0000000000 R11: ffffed103ee071d3 R12: ffff8881f7038e80 [ 96.227286][ C0] R13: 1ffff1103ee2784d R14: 0000000000000001 R15: ffff8881f713c268 [ 96.235260][ C0] ? text_poke_sync+0x30/0x30 [ 96.239941][ C0] ? smp_call_function_many+0x40/0x40 [ 96.245324][ C0] ? __kmalloc_track_caller+0x74/0x2c0 [ 96.250778][ C0] ? text_poke+0x20/0x20 [ 96.255011][ C0] ? preempt_schedule_thunk+0x16/0x18 [ 96.260375][ C0] ? text_poke_sync+0x30/0x30 [ 96.265046][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 96.270155][ C0] text_poke_bp_batch+0x57f/0x600 [ 96.275174][ C0] ? text_poke_loc_init+0x560/0x560 [ 96.280366][ C0] ? __kasan_check_write+0x14/0x20 [ 96.285492][ C0] ? mutex_lock+0x9b/0x1c0 [ 96.289908][ C0] ? wait_for_completion_interruptible_timeout+0xf/0x10 [ 96.296840][ C0] ? text_poke_queue+0xde/0x1a0 [ 96.301688][ C0] text_poke_finish+0x1a/0x30 [ 96.306388][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 96.312400][ C0] __jump_label_update+0x38f/0x3b0 [ 96.317506][ C0] jump_label_update+0x39b/0x450 [ 96.322443][ C0] static_key_disable_cpuslocked+0xc5/0x1a0 [ 96.328359][ C0] static_key_disable+0x1a/0x30 [ 96.333235][ C0] toggle_allocation_gate+0x3af/0x440 [ 96.338606][ C0] ? kfence_debugfs_init+0x70/0x70 [ 96.343713][ C0] ? _raw_spin_unlock+0x4d/0x70 [ 96.348555][ C0] ? finish_task_switch+0x16b/0x790 [ 96.353748][ C0] ? switch_mm_irqs_off+0x730/0x960 [ 96.358942][ C0] ? __schedule+0xbd7/0x14a0 [ 96.363525][ C0] process_one_work+0x6c8/0xbb0 [ 96.368382][ C0] worker_thread+0xaa0/0x1250 [ 96.373059][ C0] kthread+0x3f5/0x4f0 [ 96.377123][ C0] ? worker_clr_flags+0x190/0x190 [ 96.382143][ C0] ? kthread_blkcg+0xd0/0xd0 [ 96.386729][ C0] ret_from_fork+0x1f/0x30 [ 96.391145][ C0] [ 96.394154][ T367] CPU: 1 PID: 367 Comm: syz-executor Not tainted syzkaller #0 [ 96.401619][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 96.411668][ T367] Call Trace: [ 96.414941][ T367] [ 96.417892][ T367] __dump_stack+0x21/0x30 [ 96.422222][ T367] dump_stack_lvl+0x110/0x170 [ 96.426892][ T367] ? show_regs_print_info+0x20/0x20 [ 96.432084][ T367] dump_stack+0x15/0x20 [ 96.436231][ T367] should_fail+0x3ab/0x500 [ 96.440641][ T367] __should_failslab+0xa4/0xe0 [ 96.445398][ T367] should_failslab+0x9/0x20 [ 96.449897][ T367] slab_pre_alloc_hook+0x39/0xd0 [ 96.454838][ T367] ? __alloc_skb+0xe4/0x730 [ 96.459339][ T367] kmem_cache_alloc+0x44/0x260 [ 96.464137][ T367] ? fib6_nh_flush_exceptions+0x46a/0x480 [ 96.469867][ T367] __alloc_skb+0xe4/0x730 [ 96.474207][ T367] inet6_rt_notify+0x293/0x480 [ 96.478991][ T367] ? rt6_nh_dump_exceptions+0x6b0/0x6b0 [ 96.484539][ T367] ? call_fib_notifiers+0xa0/0xc0 [ 96.489559][ T367] fib6_del+0xb9e/0xf00 [ 96.493712][ T367] ? fib6_locate+0x520/0x520 [ 96.498298][ T367] ? _raw_spin_unlock+0x4d/0x70 [ 96.503143][ T367] ? fib6_ifdown+0x2e8/0x4e0 [ 96.507730][ T367] fib6_clean_node+0x2a1/0x540 [ 96.512531][ T367] ? node_free_rcu+0x30/0x30 [ 96.517123][ T367] ? __kasan_check_read+0x11/0x20 [ 96.522142][ T367] fib6_walk_continue+0x54b/0x740 [ 96.527163][ T367] fib6_walk+0x153/0x290 [ 96.531401][ T367] fib6_clean_all+0x1a1/0x270 [ 96.536157][ T367] ? kvm_sched_clock_read+0x18/0x40 [ 96.541353][ T367] ? rt6_sync_down_dev+0x140/0x140 [ 96.546465][ T367] ? fib6_del+0xf00/0xf00 [ 96.550789][ T367] ? node_free_rcu+0x30/0x30 [ 96.555373][ T367] ? rt6_sync_down_dev+0x140/0x140 [ 96.560480][ T367] ? try_to_wake_up+0x610/0x1150 [ 96.565415][ T367] rt6_disable_ip+0x115/0x730 [ 96.570090][ T367] ? __queue_work+0x903/0xc60 [ 96.574768][ T367] ? fib6_ifdown+0x4e0/0x4e0 [ 96.579362][ T367] ? __kasan_check_read+0x11/0x20 [ 96.584380][ T367] addrconf_ifdown+0x144/0x1910 [ 96.589227][ T367] ? nf_nat_masq_schedule+0x22d/0x4d0 [ 96.594595][ T367] ? addrconf_cleanup+0x1c0/0x1c0 [ 96.599617][ T367] ? __kasan_check_write+0x14/0x20 [ 96.604724][ T367] ? mutex_unlock+0x8f/0x230 [ 96.609307][ T367] ? __mutex_lock_slowpath+0x10/0x10 [ 96.614585][ T367] ? nf_nat_masq_schedule+0x4d0/0x4d0 [ 96.619952][ T367] ? masq_device_event+0xd0/0xd0 [ 96.624887][ T367] addrconf_notify+0x3bd/0xe00 [ 96.629647][ T367] raw_notifier_call_chain+0x90/0x100 [ 96.635014][ T367] dev_close_many+0x325/0x4d0 [ 96.639682][ T367] ? __dev_open+0x500/0x500 [ 96.641171][ C0] FAULT_INJECTION: forcing a failure. [ 96.641171][ C0] name failslab, interval 1, probability 10, space 0, times 10 [ 96.644174][ T367] ? _raw_spin_lock+0x94/0xf0 [ 96.661578][ T367] ? __kasan_check_read+0x11/0x20 [ 96.666600][ T367] unregister_netdevice_many+0x477/0x1a00 [ 96.672318][ T367] ? __queue_work+0x903/0xc60 [ 96.676992][ T367] ? alloc_netdev_mqs+0xe20/0xe20 [ 96.682014][ T367] ? __queue_delayed_work+0x188/0x200 [ 96.687383][ T367] ? __kasan_check_read+0x11/0x20 [ 96.692403][ T367] unregister_netdevice_queue+0x2e1/0x320 [ 96.698121][ T367] ? __kasan_check_read+0x11/0x20 [ 96.703278][ T367] ? linkwatch_urgent_event+0x34d/0x460 [ 96.708858][ T367] ? list_netdevice+0x4c0/0x4c0 [ 96.713722][ T367] __tun_detach+0xc9d/0x1450 [ 96.718318][ T367] tun_chr_close+0x92/0x140 [ 96.722821][ T367] ? tun_chr_open+0x540/0x540 [ 96.727493][ T367] __fput+0x22b/0x900 [ 96.731473][ T367] ____fput+0x15/0x20 [ 96.735473][ T367] task_work_run+0x127/0x190 [ 96.740055][ T367] do_exit+0xb70/0x29a0 [ 96.744203][ T367] ? put_task_struct+0x90/0x90 [ 96.748962][ T367] ? __fdget_pos+0x1f7/0x380 [ 96.753543][ T367] ? ksys_write+0x1eb/0x260 [ 96.758039][ T367] do_group_exit+0x149/0x310 [ 96.762623][ T367] __x64_sys_exit_group+0x3f/0x40 [ 96.767644][ T367] x64_sys_call+0x832/0x9a0 [ 96.772172][ T367] do_syscall_64+0x4c/0xa0 [ 96.776592][ T367] ? clear_bhb_loop+0x50/0xa0 [ 96.781285][ T367] ? clear_bhb_loop+0x50/0xa0 [ 96.786000][ T367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 96.791907][ T367] RIP: 0033:0x7fd9921efe99 [ 96.796316][ T367] Code: Unable to access opcode bytes at RIP 0x7fd9921efe6f. [ 96.803759][ T367] RSP: 002b:00007fffce68c758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 96.812169][ T367] RAX: ffffffffffffffda RBX: 00007fd99228532f RCX: 00007fd9921efe99 [ 96.820133][ T367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 96.828097][ T367] RBP: 000000000000000c R08: 0000000000000000 R09: 00007fd99228530a [ 96.836059][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffce68d9b0 [ 96.844020][ T367] R13: 00007fd99228530a R14: 000000000000fcc3 R15: 00007fffce68d9f0 [ 96.852019][ T367] [ 96.855057][ C0] CPU: 0 PID: 15 Comm: rcub/0 Not tainted syzkaller #0 [ 96.855192][ C1] FAULT_INJECTION: forcing a failure. [ 96.855192][ C1] name failslab, interval 1, probability 10, space 0, times 9 [ 96.861908][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 96.861921][ C0] Call Trace: [ 96.861928][ C0] [ 96.890703][ C0] __dump_stack+0x21/0x30 [ 96.895033][ C0] dump_stack_lvl+0x110/0x170 [ 96.899706][ C0] ? show_regs_print_info+0x20/0x20 [ 96.904898][ C0] ? prandom_u32+0x24d/0x290 [ 96.909487][ C0] dump_stack+0x15/0x20 [ 96.913633][ C0] should_fail+0x3ab/0x500 [ 96.918043][ C0] __should_failslab+0xa4/0xe0 [ 96.922803][ C0] should_failslab+0x9/0x20 [ 96.927304][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 96.932265][ C0] kmem_cache_alloc_trace+0x48/0x270 [ 96.937547][ C0] ? dst_cow_metrics_generic+0x55/0x1c0 [ 96.943091][ C0] dst_cow_metrics_generic+0x55/0x1c0 [ 96.948456][ C0] icmp6_dst_alloc+0x35f/0x520 [ 96.953215][ C0] ndisc_send_skb+0x2a9/0xcf0 [ 96.957887][ C0] ? ndisc_alloc_skb+0x290/0x290 [ 96.962821][ C0] ? ndisc_send_rs+0x61f/0x960 [ 96.967627][ C0] ? memcpy+0x56/0x70 [ 96.971607][ C0] ndisc_send_rs+0x711/0x960 [ 96.976189][ C0] addrconf_rs_timer+0x35a/0x600 [ 96.981169][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 96.987232][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 96.992780][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 96.998881][ C0] call_timer_fn+0x38/0x290 [ 97.003385][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 97.009457][ C0] __run_timers+0x637/0x9a0 [ 97.013984][ C0] ? calc_index+0x200/0x200 [ 97.018489][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 97.023445][ C0] run_timer_softirq+0x6a/0xf0 [ 97.028204][ C0] handle_softirqs+0x250/0x560 [ 97.032965][ C0] __irq_exit_rcu+0x52/0xf0 [ 97.037462][ C0] irq_exit_rcu+0x9/0x10 [ 97.041698][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 97.047326][ C0] [ 97.050248][ C0] [ 97.053171][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 97.059147][ C0] RIP: 0010:rt_mutex_slowlock_block+0x2c8/0x570 [ 97.065386][ C0] Code: c0 0f 85 dc 00 00 00 48 8b 45 c0 83 38 00 0f 84 19 01 00 00 4c 89 f7 be 08 00 00 00 e8 e1 db f5 fc 48 8b 45 a8 42 80 3c 28 00 <74> 08 4c 89 f7 e8 ee d9 f5 fc 49 f7 06 08 00 00 00 0f 85 ec 00 00 [ 97.085118][ C0] RSP: 0018:ffffc900000f7c18 EFLAGS: 00000246 [ 97.091181][ C0] RAX: 1ffff1102005f768 RBX: ffffffff867a98b8 RCX: ffffffff84b34c4f [ 97.099149][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881002fbb40 [ 97.107114][ C0] RBP: ffffc900000f7cb0 R08: ffff8881002fbb47 R09: 1ffff1102005f768 [ 97.115110][ C0] R10: dffffc0000000000 R11: ffffed102005f769 R12: ffffc900000f7d00 [ 97.123085][ C0] R13: dffffc0000000000 R14: ffff8881002fbb40 R15: ffffffff867a98b8 [ 97.131072][ C0] ? rt_mutex_slowlock_block+0x2bf/0x570 [ 97.136717][ C0] ? rt_mutex_slowlock_block+0x2bf/0x570 [ 97.142351][ C0] rt_mutex_slowlock+0x186/0x2d0 [ 97.147280][ C0] ? rt_mutex_adjust_prio_chain+0x18f0/0x18f0 [ 97.153347][ C0] rt_mutex_lock+0x113/0x1c0 [ 97.158080][ C0] ? percpu_down_write+0x580/0x580 [ 97.163202][ C0] ? __kasan_check_write+0x14/0x20 [ 97.168324][ C0] rcu_boost_kthread+0x252/0x670 [ 97.173272][ C0] kthread+0x3f5/0x4f0 [ 97.177354][ C0] ? rcu_preempt_deferred_qs_handler+0xf0/0xf0 [ 97.183539][ C0] ? kthread_blkcg+0xd0/0xd0 [ 97.188129][ C0] ret_from_fork+0x1f/0x30 [ 97.192542][ C0] [ 97.195554][ C1] CPU: 1 PID: 367 Comm: syz-executor Not tainted syzkaller #0 [ 97.195645][ C0] FAULT_INJECTION: forcing a failure. [ 97.195645][ C0] name failslab, interval 1, probability 10, space 0, times 8 [ 97.203011][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 97.203023][ C1] Call Trace: [ 97.203029][ C1] [ 97.203035][ C1] __dump_stack+0x21/0x30 [ 97.236141][ C1] dump_stack_lvl+0x110/0x170 [ 97.240815][ C1] ? show_regs_print_info+0x20/0x20 [ 97.246009][ C1] ? prandom_u32+0x24d/0x290 [ 97.250593][ C1] dump_stack+0x15/0x20 [ 97.254742][ C1] should_fail+0x3ab/0x500 [ 97.259156][ C1] __should_failslab+0xa4/0xe0 [ 97.263916][ C1] should_failslab+0x9/0x20 [ 97.268433][ C1] slab_pre_alloc_hook+0x39/0xd0 [ 97.273369][ C1] ? __alloc_skb+0xe4/0x730 [ 97.277891][ C1] kmem_cache_alloc+0x44/0x260 [ 97.282652][ C1] __alloc_skb+0xe4/0x730 [ 97.286978][ C1] ndisc_send_rs+0x310/0x960 [ 97.291572][ C1] addrconf_rs_timer+0x35a/0x600 [ 97.296502][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 97.302560][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 97.307674][ C1] ? _raw_spin_lock_irqsave+0x130/0x130 [ 97.313220][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 97.319282][ C1] call_timer_fn+0x38/0x290 [ 97.323783][ C1] ? addrconf_disable_policy_idev+0x360/0x360 [ 97.329848][ C1] __run_timers+0x637/0x9a0 [ 97.334345][ C1] ? calc_index+0x200/0x200 [ 97.338851][ C1] ? hrtimer_interrupt+0x6b6/0x8c0 [ 97.343966][ C1] run_timer_softirq+0x6a/0xf0 [ 97.348888][ C1] handle_softirqs+0x250/0x560 [ 97.353664][ C1] __do_softirq+0xb/0xd [ 97.357899][ C1] do_softirq+0xdc/0x130 [ 97.362139][ C1] [ 97.365060][ C1] [ 97.367982][ C1] ? __local_bh_enable_ip+0x80/0x80 [ 97.373177][ C1] ? __local_bh_enable_ip+0x58/0x80 [ 97.378381][ C1] __local_bh_enable_ip+0x75/0x80 [ 97.383402][ C1] _raw_spin_unlock_bh+0x51/0x60 [ 97.388333][ C1] fib6_clean_all+0x1c9/0x270 [ 97.393003][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 97.398196][ C1] ? rt6_sync_down_dev+0x140/0x140 [ 97.403302][ C1] ? fib6_del+0xf00/0xf00 [ 97.407741][ C1] ? node_free_rcu+0x30/0x30 [ 97.412342][ C1] ? rt6_sync_down_dev+0x140/0x140 [ 97.417450][ C1] ? try_to_wake_up+0x610/0x1150 [ 97.422382][ C1] rt6_disable_ip+0x115/0x730 [ 97.427089][ C1] ? __queue_work+0x903/0xc60 [ 97.432291][ C1] ? fib6_ifdown+0x4e0/0x4e0 [ 97.436891][ C1] ? __kasan_check_read+0x11/0x20 [ 97.441921][ C1] addrconf_ifdown+0x144/0x1910 [ 97.446873][ C1] ? nf_nat_masq_schedule+0x22d/0x4d0 [ 97.452287][ C1] ? addrconf_cleanup+0x1c0/0x1c0 [ 97.457327][ C1] ? __kasan_check_write+0x14/0x20 [ 97.462540][ C1] ? mutex_unlock+0x8f/0x230 [ 97.467226][ C1] ? __mutex_lock_slowpath+0x10/0x10 [ 97.472526][ C1] ? nf_nat_masq_schedule+0x4d0/0x4d0 [ 97.477901][ C1] ? masq_device_event+0xd0/0xd0 [ 97.482835][ C1] addrconf_notify+0x3bd/0xe00 [ 97.487652][ C1] raw_notifier_call_chain+0x90/0x100 [ 97.493049][ C1] dev_close_many+0x325/0x4d0 [ 97.497761][ C1] ? __dev_open+0x500/0x500 [ 97.502272][ C1] ? _raw_spin_lock+0x94/0xf0 [ 97.506959][ C1] ? __kasan_check_read+0x11/0x20 [ 97.512125][ C1] unregister_netdevice_many+0x477/0x1a00 [ 97.517992][ C1] ? __queue_work+0x903/0xc60 [ 97.522712][ C1] ? alloc_netdev_mqs+0xe20/0xe20 [ 97.527869][ C1] ? __queue_delayed_work+0x188/0x200 [ 97.533257][ C1] ? __kasan_check_read+0x11/0x20 [ 97.538303][ C1] unregister_netdevice_queue+0x2e1/0x320 [ 97.544028][ C1] ? __kasan_check_read+0x11/0x20 [ 97.549146][ C1] ? linkwatch_urgent_event+0x34d/0x460 [ 97.554703][ C1] ? list_netdevice+0x4c0/0x4c0 [ 97.559662][ C1] __tun_detach+0xc9d/0x1450 [ 97.564259][ C1] tun_chr_close+0x92/0x140 [ 97.568756][ C1] ? tun_chr_open+0x540/0x540 [ 97.573556][ C1] __fput+0x22b/0x900 [ 97.577551][ C1] ____fput+0x15/0x20 [ 97.581539][ C1] task_work_run+0x127/0x190 [ 97.586139][ C1] do_exit+0xb70/0x29a0 [ 97.590303][ C1] ? put_task_struct+0x90/0x90 [ 97.595071][ C1] ? __fdget_pos+0x1f7/0x380 [ 97.599677][ C1] ? ksys_write+0x1eb/0x260 [ 97.604217][ C1] do_group_exit+0x149/0x310 [ 97.608838][ C1] __x64_sys_exit_group+0x3f/0x40 [ 97.613878][ C1] x64_sys_call+0x832/0x9a0 [ 97.618391][ C1] do_syscall_64+0x4c/0xa0 [ 97.622982][ C1] ? clear_bhb_loop+0x50/0xa0 [ 97.627657][ C1] ? clear_bhb_loop+0x50/0xa0 [ 97.632343][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 97.638227][ C1] RIP: 0033:0x7fd9921efe99 [ 97.642640][ C1] Code: Unable to access opcode bytes at RIP 0x7fd9921efe6f. [ 97.649991][ C1] RSP: 002b:00007fffce68c758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 97.658409][ C1] RAX: ffffffffffffffda RBX: 00007fd99228532f RCX: 00007fd9921efe99 [ 97.666395][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 97.674362][ C1] RBP: 000000000000000c R08: 0000000000000000 R09: 00007fd99228530a [ 97.682329][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffce68d9b0 [ 97.690295][ C1] R13: 00007fd99228530a R14: 000000000000fcc3 R15: 00007fffce68d9f0 [ 97.698260][ C1] [ 97.701272][ C0] CPU: 0 PID: 15 Comm: rcub/0 Not tainted syzkaller #0 [ 97.708132][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 97.718200][ C0] Call Trace: [ 97.721545][ C0] [ 97.724388][ C0] __dump_stack+0x21/0x30 [ 97.728717][ C0] dump_stack_lvl+0x110/0x170 [ 97.731711][ T298] FAULT_INJECTION: forcing a failure. [ 97.731711][ T298] name failslab, interval 1, probability 10, space 0, times 7 connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF [ 97.733545][ C0] ? show_regs_print_info+0x20/0x20 [ 97.751393][ C0] dump_stack+0x15/0x20 [ 97.755553][ C0] should_fail+0x3ab/0x500 [ 97.759966][ C0] ? ndisc_send_rs+0x310/0x960 [ 97.764726][ C0] __should_failslab+0xa4/0xe0 [ 97.769497][ C0] should_failslab+0x9/0x20 [ 97.773995][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 97.778924][ C0] ? ndisc_send_rs+0x310/0x960 [ 97.783679][ C0] ? ndisc_send_rs+0x310/0x960 [ 97.788436][ C0] __kmalloc_track_caller+0x6c/0x2c0 [ 97.793712][ C0] ? ndisc_send_rs+0x310/0x960 [ 97.798489][ C0] ? ndisc_send_rs+0x310/0x960 [ 97.803254][ C0] __alloc_skb+0x210/0x730 [ 97.807665][ C0] ndisc_send_rs+0x310/0x960 [ 97.812259][ C0] addrconf_rs_timer+0x35a/0x600 [ 97.817191][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 97.823251][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 97.828386][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 97.833944][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 97.840014][ C0] call_timer_fn+0x38/0x290 [ 97.844517][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 97.850581][ C0] __run_timers+0x637/0x9a0 [ 97.855078][ C0] ? calc_index+0x200/0x200 [ 97.859573][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 97.864415][ C0] run_timer_softirq+0x6a/0xf0 [ 97.869174][ C0] handle_softirqs+0x250/0x560 [ 97.873931][ C0] __irq_exit_rcu+0x52/0xf0 [ 97.878427][ C0] irq_exit_rcu+0x9/0x10 [ 97.882663][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 97.888295][ C0] [ 97.891211][ C0] [ 97.894131][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 97.900103][ C0] RIP: 0010:rt_mutex_slowlock_block+0x2c8/0x570 [ 97.906338][ C0] Code: c0 0f 85 dc 00 00 00 48 8b 45 c0 83 38 00 0f 84 19 01 00 00 4c 89 f7 be 08 00 00 00 e8 e1 db f5 fc 48 8b 45 a8 42 80 3c 28 00 <74> 08 4c 89 f7 e8 ee d9 f5 fc 49 f7 06 08 00 00 00 0f 85 ec 00 00 [ 97.925936][ C0] RSP: 0018:ffffc900000f7c18 EFLAGS: 00000246 [ 97.932006][ C0] RAX: 1ffff1102005f768 RBX: ffffffff867a98b8 RCX: ffffffff84b34c4f [ 97.939970][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881002fbb40 [ 97.947933][ C0] RBP: ffffc900000f7cb0 R08: ffff8881002fbb47 R09: 1ffff1102005f768 [ 97.955894][ C0] R10: dffffc0000000000 R11: ffffed102005f769 R12: ffffc900000f7d00 [ 97.963853][ C0] R13: dffffc0000000000 R14: ffff8881002fbb40 R15: ffffffff867a98b8 [ 97.971817][ C0] ? rt_mutex_slowlock_block+0x2bf/0x570 [ 97.977448][ C0] ? rt_mutex_slowlock_block+0x2bf/0x570 [ 97.983073][ C0] rt_mutex_slowlock+0x186/0x2d0 [ 97.988004][ C0] ? rt_mutex_adjust_prio_chain+0x18f0/0x18f0 [ 97.994065][ C0] rt_mutex_lock+0x113/0x1c0 [ 97.998645][ C0] ? percpu_down_write+0x580/0x580 [ 98.003749][ C0] ? __kasan_check_write+0x14/0x20 [ 98.008852][ C0] rcu_boost_kthread+0x252/0x670 [ 98.013783][ C0] kthread+0x3f5/0x4f0 [ 98.017841][ C0] ? rcu_preempt_deferred_qs_handler+0xf0/0xf0 [ 98.023985][ C0] ? kthread_blkcg+0xd0/0xd0 [ 98.028573][ C0] ret_from_fork+0x1f/0x30 [ 98.032980][ C0] [ 98.035985][ T2] CPU: 1 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 98.042925][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 98.052972][ T2] Call Trace: [ 98.056241][ T2] [ 98.059156][ T2] __dump_stack+0x21/0x30 [ 98.063483][ T2] dump_stack_lvl+0x110/0x170 [ 98.068147][ T2] ? show_regs_print_info+0x20/0x20 [ 98.073341][ T2] dump_stack+0x15/0x20 [ 98.077484][ T2] should_fail+0x3ab/0x500 [ 98.081887][ T2] __should_failslab+0xa4/0xe0 [ 98.086644][ T2] should_failslab+0x9/0x20 [ 98.091134][ T2] slab_pre_alloc_hook+0x39/0xd0 [ 98.096066][ T2] ? dup_task_struct+0x57/0xc50 [ 98.100902][ T2] kmem_cache_alloc+0x44/0x260 [ 98.105661][ T2] dup_task_struct+0x57/0xc50 [ 98.110326][ T2] ? __kasan_check_write+0x14/0x20 [ 98.115426][ T2] copy_process+0x5e0/0x3280 [ 98.120007][ T2] ? update_load_avg+0x442/0x1110 [ 98.125023][ T2] ? __pidfd_prepare+0x150/0x150 [ 98.129951][ T2] ? __switch_to+0x56c/0x1070 [ 98.134617][ T2] kernel_clone+0x233/0x960 [ 98.139107][ T2] ? create_io_thread+0x170/0x170 [ 98.144118][ T2] ? finish_task_switch+0x16b/0x790 [ 98.149323][ T2] ? kthread_blkcg+0xd0/0xd0 [ 98.153911][ T2] kernel_thread+0xfe/0x170 [ 98.158419][ T2] ? ptrace_event_pid+0x180/0x180 [ 98.163439][ T2] ? kthread_blkcg+0xd0/0xd0 [ 98.168017][ T2] ? _raw_spin_trylock_bh+0x150/0x150 [ 98.173386][ T2] ? __kasan_check_read+0x11/0x20 [ 98.178402][ T2] kthreadd+0x346/0x480 [ 98.182548][ T2] ? tokenize_frame_descr+0x93/0xc0 [ 98.187737][ T2] ? kthread_stop+0x3e0/0x3e0 [ 98.192404][ T2] ? _raw_spin_unlock_irq+0x4e/0x70 [ 98.197586][ T2] ? calculate_sigpending+0x7c/0x90 [ 98.202780][ T2] ? kthread_stop+0x3e0/0x3e0 [ 98.207458][ T2] ret_from_fork+0x1f/0x30 [ 98.211949][ T2] [ 98.214954][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0 [ 98.222150][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 98.232193][ T6] Workqueue: mld mld_dad_work [ 98.236865][ T6] Call Trace: [ 98.240128][ T6] [ 98.243045][ T6] __dump_stack+0x21/0x30 [ 98.247362][ T6] dump_stack_lvl+0x110/0x170 [ 98.252027][ T6] ? show_regs_print_info+0x20/0x20 [ 98.257226][ T6] ? prandom_u32+0x24d/0x290 [ 98.261811][ T6] dump_stack+0x15/0x20 [ 98.265950][ T6] should_fail+0x3ab/0x500 [ 98.270354][ T6] ? mld_newpack+0x143/0x9e0 [ 98.274931][ T6] __should_failslab+0xa4/0xe0 [ 98.279685][ T6] should_failslab+0x9/0x20 [ 98.284175][ T6] slab_pre_alloc_hook+0x39/0xd0 [ 98.289106][ T6] ? mld_newpack+0x143/0x9e0 [ 98.293772][ T6] ? mld_newpack+0x143/0x9e0 [ 98.298350][ T6] __kmalloc_track_caller+0x6c/0x2c0 [ 98.303624][ T6] ? mld_newpack+0x143/0x9e0 [ 98.308244][ T6] ? mld_newpack+0x143/0x9e0 [ 98.312866][ T6] __alloc_skb+0x210/0x730 [ 98.317291][ T6] mld_newpack+0x143/0x9e0 [ 98.321722][ T6] ? mld_sendpack+0xba0/0xba0 [ 98.326410][ T6] add_grec+0xee8/0x1340 [ 98.330646][ T6] ? __kasan_check_write+0x14/0x20 [ 98.335752][ T6] ? __kasan_check_write+0x14/0x20 [ 98.340860][ T6] mld_send_initial_cr+0x157/0x320 [ 98.345958][ T6] mld_dad_work+0x3a/0x4e0 [ 98.350364][ T6] process_one_work+0x6c8/0xbb0 [ 98.355209][ T6] worker_thread+0xaa0/0x1250 [ 98.359882][ T6] kthread+0x3f5/0x4f0 [ 98.363940][ T6] ? worker_clr_flags+0x190/0x190 [ 98.368958][ T6] ? kthread_blkcg+0xd0/0xd0 [ 98.373539][ T6] ret_from_fork+0x1f/0x30 [ 98.377948][ T6] [ 98.381021][ T298] CPU: 1 PID: 298 Comm: syz-execprog Not tainted syzkaller #0 [ 98.388505][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 98.398548][ T298] Call Trace: [ 98.401816][ T298] [ 98.404731][ T298] __dump_stack+0x21/0x30 [ 98.409047][ T298] dump_stack_lvl+0x110/0x170 [ 98.413707][ T298] ? show_regs_print_info+0x20/0x20 [ 98.418887][ T298] dump_stack+0x15/0x20 [ 98.423040][ T298] should_fail+0x3ab/0x500 [ 98.427442][ T298] __should_failslab+0xa4/0xe0 [ 98.432186][ T298] should_failslab+0x9/0x20 [ 98.436673][ T298] slab_pre_alloc_hook+0x39/0xd0 [ 98.441594][ T298] ? __alloc_skb+0xe4/0x730 [ 98.446081][ T298] kmem_cache_alloc+0x44/0x260 [ 98.450828][ T298] __alloc_skb+0xe4/0x730 [ 98.455142][ T298] tcp_send_fin+0x1ad/0xf50 [ 98.459630][ T298] ? __sk_mem_reduce_allocated+0x1ed/0x2d0 [ 98.465440][ T298] __tcp_close+0x588/0xde0 [ 98.469836][ T298] tcp_close+0x29/0x110 [ 98.473972][ T298] inet_release+0x183/0x200 [ 98.478460][ T298] inet6_release+0x57/0x70 [ 98.482857][ T298] sock_close+0xb8/0x200 [ 98.487084][ T298] ? sock_mmap+0xa0/0xa0 [ 98.491310][ T298] __fput+0x22b/0x900 [ 98.495275][ T298] ____fput+0x15/0x20 [ 98.499241][ T298] task_work_run+0x127/0x190 [ 98.503813][ T298] exit_to_user_mode_loop+0xd0/0xe0 [ 98.508995][ T298] exit_to_user_mode_prepare+0x87/0xd0 [ 98.514434][ T298] syscall_exit_to_user_mode+0x1a/0x30 [ 98.519875][ T298] do_syscall_64+0x58/0xa0 [ 98.521229][ C0] FAULT_INJECTION: forcing a failure. [ 98.521229][ C0] name failslab, interval 1, probability 10, space 0, times 5 [ 98.524271][ T298] ? clear_bhb_loop+0x50/0xa0 [ 98.541577][ T298] ? clear_bhb_loop+0x50/0xa0 [ 98.546242][ T298] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 98.552123][ T298] RIP: 0033:0x40d3ce [ 98.556035][ T298] Code: ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48 [ 98.575629][ T298] RSP: 002b:0000104ab4fcfe00 EFLAGS: 00000212 ORIG_RAX: 0000000000000003 [ 98.584038][ T298] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 000000000040d3ce [ 98.591997][ T298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 98.599957][ T298] RBP: 0000104ab4fcfe40 R08: 0000000000000000 R09: 0000000000000000 [ 98.607916][ T298] R10: 0000000000000000 R11: 0000000000000212 R12: 0000104ab4fcfef8 [ 98.615876][ T298] R13: 0000104ab735be80 R14: 0000104ab8f12780 R15: ffffffffffffffff [ 98.623839][ T298] [ 98.626849][ C0] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0 [ 98.634050][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 98.644100][ C0] Workqueue: events bpf_prog_free_deferred [ 98.649906][ C0] Call Trace: [ 98.653172][ C0] [ 98.656094][ C0] __dump_stack+0x21/0x30 [ 98.660417][ C0] dump_stack_lvl+0x110/0x170 [ 98.665091][ C0] ? show_regs_print_info+0x20/0x20 [ 98.670302][ C0] dump_stack+0x15/0x20 [ 98.674452][ C0] should_fail+0x3ab/0x500 [ 98.678865][ C0] ? ndisc_send_rs+0x310/0x960 [ 98.683641][ C0] __should_failslab+0xa4/0xe0 [ 98.688411][ C0] should_failslab+0x9/0x20 [ 98.692901][ C0] slab_pre_alloc_hook+0x39/0xd0 [ 98.697826][ C0] ? ndisc_send_rs+0x310/0x960 [ 98.702582][ C0] ? ndisc_send_rs+0x310/0x960 [ 98.707336][ C0] __kmalloc_track_caller+0x6c/0x2c0 [ 98.712634][ C0] ? ndisc_send_rs+0x310/0x960 [ 98.717393][ C0] ? ndisc_send_rs+0x310/0x960 [ 98.721892][ T60] FAULT_INJECTION: forcing a failure. [ 98.721892][ T60] name failslab, interval 1, probability 10, space 0, times 5 [ 98.722168][ C0] __alloc_skb+0x210/0x730 [ 98.739236][ C0] ndisc_send_rs+0x310/0x960 [ 98.743830][ C0] ? ndisc_send_rs+0x131/0x960 [ 98.748617][ C0] addrconf_rs_timer+0x35a/0x600 [ 98.753550][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 98.759609][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 98.764627][ C0] ? _raw_spin_lock_irqsave+0x130/0x130 [ 98.770179][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 98.776236][ C0] call_timer_fn+0x38/0x290 [ 98.780735][ C0] ? addrconf_disable_policy_idev+0x360/0x360 [ 98.786792][ C0] __run_timers+0x637/0x9a0 [ 98.791290][ C0] ? calc_index+0x200/0x200 [ 98.795786][ C0] ? sched_clock_cpu+0x18/0x3d0 [ 98.800635][ C0] run_timer_softirq+0x6a/0xf0 [ 98.805509][ C0] handle_softirqs+0x250/0x560 [ 98.810310][ C0] ? irqtime_account_irq+0xbe/0x390 [ 98.815505][ C0] __irq_exit_rcu+0x52/0xf0 [ 98.820004][ C0] irq_exit_rcu+0x9/0x10 [ 98.824239][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 98.829978][ C0] [ 98.832909][ C0] [ 98.835838][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 98.841281][ T2] FAULT_INJECTION: forcing a failure. [ 98.841281][ T2] name failslab, interval 1, probability 10, space 0, times 4 [ 98.841820][ C0] RIP: 0010:smp_call_function_many_cond+0x8ad/0x9e0 [ 98.861035][ C0] Code: 0f b6 44 05 00 84 c0 0f 85 9b 00 00 00 41 8b 1f 89 de 83 e6 01 31 ff e8 31 48 0a 00 83 e3 01 75 07 e8 77 44 0a 00 eb 42 f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 75 10 41 f7 [ 98.880637][ C0] RSP: 0018:ffffc90000067860 EFLAGS: 00000293 [ 98.886705][ C0] RAX: ffffffff815f728f RBX: 0000000000000001 RCX: ffff888100262780 [ 98.894696][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 98.902660][ C0] RBP: ffffc90000067968 R08: ffffc900000677af R09: ffffc900000677a0 [ 98.910628][ C0] R10: dffffc0000000000 R11: fffff5200000cef6 R12: ffff8881f7038e80 [ 98.918595][ C0] R13: 1ffff1103ee2784d R14: 0000000000000001 R15: ffff8881f713c268 [ 98.926568][ C0] ? smp_call_function_many_cond+0x8cf/0x9e0 [ 98.932568][ C0] ? flush_tlb_all+0x30/0x30 [ 98.937155][ C0] ? smp_call_function_many+0x40/0x40 [ 98.942527][ C0] ? __kasan_check_write+0x14/0x20 [ 98.947636][ C0] ? _raw_spin_lock+0x94/0xf0 [ 98.952306][ C0] ? flush_tlb_all+0x30/0x30 [ 98.956892][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 98.962000][ C0] flush_tlb_kernel_range+0x43/0x240 [ 98.967282][ C0] __purge_vmap_area_lazy+0x1b5/0x1890 [ 98.972734][ C0] ? cpumask_next+0x7c/0xa0 [ 98.977228][ C0] ? purge_fragmented_blocks_allcpus+0x76d/0x7e0 [ 98.983548][ C0] ? _raw_spin_trylock_bh+0x150/0x150 [ 98.988918][ C0] ? purge_fragmented_blocks_allcpus+0x7e0/0x7e0 [ 98.995238][ C0] ? set_direct_map_invalid_noflush+0xd7/0x120 [ 99.001384][ C0] ? __kasan_check_read+0x11/0x20 [ 99.006401][ C0] _vm_unmap_aliases+0x2f1/0x370 [ 99.011329][ C0] __vunmap+0x642/0x980 [ 99.015479][ C0] vfree+0x8b/0xc0 [ 99.019191][ C0] module_memfree+0x17/0x30 [ 99.023684][ C0] bpf_jit_free_exec+0x15/0x20 [ 99.028437][ C0] bpf_jit_free+0x98/0x240 [ 99.032843][ C0] bpf_prog_free_deferred+0x5c7/0x6d0 [ 99.038206][ C0] process_one_work+0x6c8/0xbb0 [ 99.043051][ C0] worker_thread+0xaa0/0x1250 [ 99.047779][ C0] kthread+0x3f5/0x4f0 [ 99.051847][ C0] ? worker_clr_flags+0x190/0x190 [ 99.056862][ C0] ? kthread_blkcg+0xd0/0xd0 [ 99.061444][ C0] ret_from_fork+0x1f/0x30 [ 99.065873][ C0] [ 99.068880][ T2] CPU: 1 PID: 2 Comm: kthreadd Not tainted syzkaller #0 [ 99.069400][ T367] FAULT_INJECTION: forcing a failure. [ 99.069400][ T367] name failslab, interval 1, probability 10, space 0, times 3 [ 99.075812][ T2] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 99.075823][ T2] Call Trace: [ 99.075828][ T2] [ 99.075834][ T2] __dump_stack+0x21/0x30 [ 99.075853][ T2] dump_stack_lvl+0x110/0x170 [ 99.113649][ T2] ? show_regs_print_info+0x20/0x20 [ 99.118841][ T2] ? prandom_u32+0x24d/0x290 [ 99.123420][ T2] dump_stack+0x15/0x20 [ 99.127575][ T2] should_fail+0x3ab/0x500 [ 99.131978][ T2] __should_failslab+0xa4/0xe0 [ 99.136731][ T2] should_failslab+0x9/0x20 [ 99.141228][ T2] slab_pre_alloc_hook+0x39/0xd0 [ 99.146171][ T2] __kmalloc+0x6d/0x2c0 [ 99.150340][ T2] ? should_failslab+0x9/0x20 [ 99.155007][ T2] ? security_prepare_creds+0x4e/0x140 [ 99.160456][ T2] security_prepare_creds+0x4e/0x140 [ 99.165729][ T2] prepare_creds+0x428/0x610 [ 99.170311][ T2] copy_creds+0xe4/0x640 [ 99.174552][ T2] copy_process+0x7d5/0x3280 [ 99.179135][ T2] ? update_load_avg+0x442/0x1110 [ 99.184150][ T2] ? __pidfd_prepare+0x150/0x150 [ 99.189082][ T2] ? __switch_to+0x56c/0x1070 [ 99.193747][ T2] kernel_clone+0x233/0x960 [ 99.198239][ T2] ? create_io_thread+0x170/0x170 [ 99.203251][ T2] ? finish_task_switch+0x16b/0x790 [ 99.208440][ T2] ? kthread_blkcg+0xd0/0xd0 [ 99.213030][ T2] kernel_thread+0xfe/0x170 [ 99.217529][ T2] ? ptrace_event_pid+0x180/0x180 [ 99.222542][ T2] ? kthread_blkcg+0xd0/0xd0 [ 99.227121][ T2] ? _raw_spin_trylock_bh+0x150/0x150 [ 99.232514][ T2] ? __kasan_check_read+0x11/0x20 [ 99.237532][ T2] kthreadd+0x346/0x480 [ 99.241681][ T2] ? tokenize_frame_descr+0x93/0xc0 [ 99.246868][ T2] ? kthread_stop+0x3e0/0x3e0 [ 99.251535][ T2] ? _raw_spin_unlock_irq+0x4e/0x70 [ 99.256722][ T2] ? calculate_sigpending+0x7c/0x90 [ 99.261909][ T2] ? kthread_stop+0x3e0/0x3e0 [ 99.266575][ T2] ret_from_fork+0x1f/0x30 [ 99.270986][ T2] [ 99.273997][ T367] CPU: 0 PID: 367 Comm: syz-executor Not tainted syzkaller #0 [ 99.281458][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 99.291499][ T367] Call Trace: [ 99.294763][ T367] [ 99.297678][ T367] __dump_stack+0x21/0x30 [ 99.301993][ T367] dump_stack_lvl+0x110/0x170 [ 99.306653][ T367] ? show_regs_print_info+0x20/0x20 [ 99.311833][ T367] ? prandom_u32+0x24d/0x290 [ 99.316405][ T367] dump_stack+0x15/0x20 [ 99.320544][ T367] should_fail+0x3ab/0x500 [ 99.324942][ T367] __should_failslab+0xa4/0xe0 [ 99.329691][ T367] should_failslab+0x9/0x20 [ 99.334384][ T367] slab_pre_alloc_hook+0x39/0xd0 [ 99.339319][ T367] ? __alloc_skb+0xe4/0x730 [ 99.343814][ T367] kmem_cache_alloc+0x44/0x260 [ 99.348572][ T367] __alloc_skb+0xe4/0x730 [ 99.352889][ T367] inet_netconf_notify_devconf+0x169/0x220 [ 99.358680][ T367] inetdev_event+0x7b0/0x1060 [ 99.363381][ T367] ? devinet_exit_net+0x220/0x220 [ 99.368386][ T367] ? up_read+0x56/0x1d0 [ 99.372524][ T367] raw_notifier_call_chain+0x90/0x100 [ 99.377882][ T367] unregister_netdevice_many+0x103d/0x1a00 [ 99.383677][ T367] ? alloc_netdev_mqs+0xe20/0xe20 [ 99.388703][ T367] ? __queue_delayed_work+0x188/0x200 [ 99.394061][ T367] ? __kasan_check_read+0x11/0x20 [ 99.399076][ T367] unregister_netdevice_queue+0x2e1/0x320 [ 99.404780][ T367] ? __kasan_check_read+0x11/0x20 [ 99.409787][ T367] ? linkwatch_urgent_event+0x34d/0x460 [ 99.415399][ T367] ? list_netdevice+0x4c0/0x4c0 [ 99.420232][ T367] __tun_detach+0xc9d/0x1450 [ 99.424809][ T367] tun_chr_close+0x92/0x140 [ 99.429294][ T367] ? tun_chr_open+0x540/0x540 [ 99.433955][ T367] __fput+0x22b/0x900 [ 99.438134][ T367] ____fput+0x15/0x20 [ 99.442114][ T367] task_work_run+0x127/0x190 [ 99.446699][ T367] do_exit+0xb70/0x29a0 [ 99.450850][ T367] ? put_task_struct+0x90/0x90 [ 99.455603][ T367] ? __fdget_pos+0x1f7/0x380 [ 99.460178][ T367] ? ksys_write+0x1eb/0x260 [ 99.464692][ T367] do_group_exit+0x149/0x310 [ 99.469266][ T367] __x64_sys_exit_group+0x3f/0x40 [ 99.474295][ T367] x64_sys_call+0x832/0x9a0 [ 99.478780][ T367] do_syscall_64+0x4c/0xa0 [ 99.483178][ T367] ? clear_bhb_loop+0x50/0xa0 [ 99.487857][ T367] ? clear_bhb_loop+0x50/0xa0 [ 99.492517][ T367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 99.498393][ T367] RIP: 0033:0x7fd9921efe99 [ 99.502814][ T367] Code: Unable to access opcode bytes at RIP 0x7fd9921efe6f. [ 99.510158][ T367] RSP: 002b:00007fffce68c758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 99.518555][ T367] RAX: ffffffffffffffda RBX: 00007fd99228532f RCX: 00007fd9921efe99 [ 99.526510][ T367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 99.534465][ T367] RBP: 000000000000000c R08: 0000000000000000 R09: 00007fd99228530a [ 99.542422][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffce68d9b0 [ 99.550381][ T367] R13: 00007fd99228530a R14: 000000000000fcc3 R15: 00007fffce68d9f0 [ 99.558340][ T367] [ 99.561407][ T309] CPU: 1 PID: 309 Comm: udevd Not tainted syzkaller #0 [ 99.568268][ T309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 99.578323][ T309] Call Trace: [ 99.581589][ T309] [ 99.584506][ T309] __dump_stack+0x21/0x30 [ 99.588839][ T309] dump_stack_lvl+0x110/0x170 [ 99.593533][ T309] ? show_regs_print_info+0x20/0x20 [ 99.598728][ T309] ? prandom_u32+0x24d/0x290 [ 99.603305][ T309] dump_stack+0x15/0x20 [ 99.607446][ T309] should_fail+0x3ab/0x500 [ 99.611845][ T309] __should_failslab+0xa4/0xe0 [ 99.616596][ T309] should_failslab+0x9/0x20 [ 99.621085][ T309] slab_pre_alloc_hook+0x39/0xd0 [ 99.626011][ T309] ? __d_alloc+0x2d/0x690 [ 99.630325][ T309] kmem_cache_alloc+0x44/0x260 [ 99.635073][ T309] ? selinux_inode_permission+0x431/0x5f0 [ 99.640788][ T309] __d_alloc+0x2d/0x690 [ 99.644929][ T309] d_alloc_cursor+0x41/0xd0 [ 99.649415][ T309] ? simple_lookup+0xf0/0xf0 [ 99.653988][ T309] dcache_dir_open+0x3b/0x80 [ 99.658563][ T309] do_dentry_open+0x82a/0x1010 [ 99.663320][ T309] vfs_open+0x73/0x80 [ 99.667292][ T309] path_openat+0x26e6/0x2f80 [ 99.671869][ T309] ? __kasan_slab_alloc+0xc9/0xe0 [ 99.676876][ T309] ? slab_post_alloc_hook+0x4f/0x2b0 [ 99.682144][ T309] ? __x64_sys_openat+0x136/0x160 [ 99.687152][ T309] ? x64_sys_call+0x219/0x9a0 [ 99.691826][ T309] ? do_syscall_64+0x4c/0xa0 [ 99.696398][ T309] ? do_filp_open+0x400/0x400 [ 99.701059][ T309] do_filp_open+0x1df/0x400 [ 99.705548][ T309] ? vfs_tmpfile+0x2d0/0x2d0 [ 99.710133][ T309] do_sys_openat2+0x15e/0x7f0 [ 99.714799][ T309] ? vfs_utimes+0x5b0/0x5b0 [ 99.719291][ T309] ? blkcg_maybe_throttle_current+0x1e0/0xa00 [ 99.725347][ T309] ? do_sys_open+0xe0/0xe0 [ 99.729753][ T309] ? __x64_sys_utimensat+0x15b/0x240 [ 99.735025][ T309] ? do_utimes+0x2a0/0x2a0 [ 99.739426][ T309] __x64_sys_openat+0x136/0x160 [ 99.744262][ T309] x64_sys_call+0x219/0x9a0 [ 99.748757][ T309] do_syscall_64+0x4c/0xa0 [ 99.753161][ T309] ? clear_bhb_loop+0x50/0xa0 [ 99.757824][ T309] ? clear_bhb_loop+0x50/0xa0 [ 99.762493][ T309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 99.768392][ T309] RIP: 0033:0x7f34aab07c3a [ 99.772796][ T309] Code: 41 89 f2 48 89 54 24 e0 41 83 e2 40 75 2a 89 f0 f7 d0 a9 00 00 41 00 74 1f 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 2e c3 0f 1f 44 00 00 48 8d 44 24 08 c7 44 24 [ 99.792393][ T309] RSP: 002b:00007ffcef88ff58 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 [ 99.800802][ T309] RAX: ffffffffffffffda RBX: 00007ffcef88ff90 RCX: 00007f34aab07c3a [ 99.808792][ T309] RDX: 0000000000090800 RSI: 00007ffcef890390 RDI: 00000000ffffff9c [ 99.816839][ T309] RBP: 0000000000000007 R08: 0000556f41ef6f90 R09: 0000000000000000 [ 99.824800][ T309] R10: 0000000000000000 R11: 0000000000000206 R12: 0000556f41f06bb0 [ 99.832759][ T309] R13: 00007ffcef890b90 R14: 00007ffcef890790 R15: 00007ffcef890390 [ 99.840747][ T309] [ 99.843913][ C1] FAULT_INJECTION: forcing a failure. [ 99.843913][ C1] name failslab, interval 1, probability 10, space 0, times 1 [ 99.844622][ T367] FAULT_INJECTION: forcing a failure. [ 99.844622][ T367] name failslab, interval 1, probability 10, space 0, times 1 [ 99.856611][ C1] CPU: 1 PID: 25 Comm: ksoftirqd/1 Not tainted syzkaller #0 [ 99.856637][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 99.856647][ C1] Call Trace: [ 99.856652][ C1] [ 99.856658][ C1] __dump_stack+0x21/0x30 [ 99.856678][ C1] dump_stack_lvl+0x110/0x170 [ 99.856694][ C1] ? show_regs_print_info+0x20/0x20 [ 99.856710][ C1] ? prandom_u32+0x24d/0x290 [ 99.911670][ C1] dump_stack+0x15/0x20 [ 99.915856][ C1] should_fail+0x3ab/0x500 [ 99.920264][ C1] ? __napi_alloc_skb+0x162/0x2e0 [ 99.925284][ C1] __should_failslab+0xa4/0xe0 [ 99.930059][ C1] should_failslab+0x9/0x20 [ 99.934574][ C1] slab_pre_alloc_hook+0x39/0xd0 [ 99.939514][ C1] ? __napi_alloc_skb+0x162/0x2e0 [ 99.944619][ C1] ? __napi_alloc_skb+0x162/0x2e0 [ 99.949653][ C1] __kmalloc_track_caller+0x6c/0x2c0 [ 99.954941][ C1] ? kasan_set_track+0x5b/0x70 [ 99.959698][ C1] ? __napi_alloc_skb+0x162/0x2e0 [ 99.964718][ C1] ? __napi_alloc_skb+0x162/0x2e0 [ 99.969749][ C1] __alloc_skb+0x210/0x730 [ 99.974173][ C1] __napi_alloc_skb+0x162/0x2e0 [ 99.979105][ C1] page_to_skb+0x274/0xb60 [ 99.983518][ C1] receive_buf+0xcd3/0x4bc0 [ 99.988020][ C1] ? kasan_quarantine_put+0x34/0x190 [ 99.993309][ C1] ? virtnet_poll_tx+0x4e0/0x4e0 [ 99.998241][ C1] ? kmem_cache_free+0x100/0x320 [ 100.003173][ C1] ? ____kasan_slab_free+0x130/0x160 [ 100.008455][ C1] ? __kasan_slab_free+0x11/0x20 [ 100.013392][ C1] ? virtqueue_get_buf_ctx+0x4a2/0xf60 [ 100.018845][ C1] ? detach_buf_split+0x88d/0xa90 [ 100.023864][ C1] ? virtqueue_get_buf_ctx+0x700/0xf60 [ 100.029321][ C1] virtnet_poll+0x510/0xe90 [ 100.033833][ C1] ? refill_work+0x220/0x220 [ 100.038416][ C1] __napi_poll+0xbb/0x580 [ 100.042735][ C1] net_rx_action+0x37f/0x910 [ 100.047323][ C1] ? net_tx_action+0x520/0x520 [ 100.052078][ C1] ? __schedule+0xbd7/0x14a0 [ 100.056665][ C1] ? irqtime_account_irq+0x76/0x390 [ 100.061865][ C1] handle_softirqs+0x250/0x560 [ 100.066634][ C1] ? ksoftirqd_should_run+0x20/0x20 [ 100.071833][ C1] run_ksoftirqd+0x28/0x40 [ 100.076255][ C1] smpboot_thread_fn+0x446/0x880 [ 100.081196][ C1] kthread+0x3f5/0x4f0 [ 100.085267][ C1] ? cpu_report_death+0x1b0/0x1b0 [ 100.090293][ C1] ? kthread_blkcg+0xd0/0xd0 [ 100.094884][ C1] ret_from_fork+0x1f/0x30 [ 100.099330][ C1] [ 100.102341][ T367] CPU: 0 PID: 367 Comm: syz-executor Not tainted syzkaller #0 [ 100.109814][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 100.119986][ T367] Call Trace: [ 100.123264][ T367] [ 100.126275][ T367] __dump_stack+0x21/0x30 [ 100.130597][ T367] dump_stack_lvl+0x110/0x170 [ 100.135277][ T367] ? show_regs_print_info+0x20/0x20 [ 100.140466][ T367] dump_stack+0x15/0x20 [ 100.144613][ T367] should_fail+0x3ab/0x500 [ 100.149054][ T367] ? dev_uevent_filter+0xb0/0xb0 [ 100.153980][ T367] __should_failslab+0xa4/0xe0 [ 100.158763][ T367] should_failslab+0x9/0x20 [ 100.163256][ T367] slab_pre_alloc_hook+0x39/0xd0 [ 100.168188][ T367] ? dev_uevent_filter+0xb0/0xb0 [ 100.173138][ T367] kmem_cache_alloc_trace+0x48/0x270 [ 100.178413][ T367] ? kobject_uevent_env+0x271/0x700 [ 100.183604][ T367] ? __mutex_lock_slowpath+0x10/0x10 [ 100.188888][ T367] ? dev_uevent_filter+0xb0/0xb0 [ 100.193813][ T367] kobject_uevent_env+0x271/0x700 [ 100.198834][ T367] kobject_uevent+0x1d/0x30 [ 100.203328][ T367] device_del+0xcb3/0xe20 [ 100.207648][ T367] ? __kasan_check_write+0x14/0x20 [ 100.212748][ T367] ? kill_device+0xd0/0xd0 [ 100.217157][ T367] ? dynamic_kobj_release+0x20/0x20 [ 100.222344][ T367] ? pm_runtime_set_memalloc_noio+0x20d/0x260 [ 100.228404][ T367] netdev_unregister_kobject+0x17b/0x260 [ 100.234029][ T367] unregister_netdevice_many+0x14e4/0x1a00 [ 100.239828][ T367] ? alloc_netdev_mqs+0xe20/0xe20 [ 100.244842][ T367] ? __queue_delayed_work+0x188/0x200 [ 100.250230][ T367] ? __kasan_check_read+0x11/0x20 [ 100.255247][ T367] unregister_netdevice_queue+0x2e1/0x320 [ 100.260961][ T367] ? __kasan_check_read+0x11/0x20 [ 100.265980][ T367] ? linkwatch_urgent_event+0x34d/0x460 [ 100.271516][ T367] ? list_netdevice+0x4c0/0x4c0 [ 100.276363][ T367] __tun_detach+0xc9d/0x1450 [ 100.280946][ T367] tun_chr_close+0x92/0x140 [ 100.285440][ T367] ? tun_chr_open+0x540/0x540 [ 100.290107][ T367] __fput+0x22b/0x900 [ 100.294082][ T367] ____fput+0x15/0x20 [ 100.298084][ T367] task_work_run+0x127/0x190 [ 100.302663][ T367] do_exit+0xb70/0x29a0 [ 100.306812][ T367] ? put_task_struct+0x90/0x90 [ 100.311587][ T367] ? __fdget_pos+0x1f7/0x380 [ 100.316172][ T367] ? ksys_write+0x1eb/0x260 [ 100.320669][ T367] do_group_exit+0x149/0x310 [ 100.325252][ T367] __x64_sys_exit_group+0x3f/0x40 [ 100.330267][ T367] x64_sys_call+0x832/0x9a0 [ 100.334760][ T367] do_syscall_64+0x4c/0xa0 [ 100.339166][ T367] ? clear_bhb_loop+0x50/0xa0 [ 100.343832][ T367] ? clear_bhb_loop+0x50/0xa0 [ 100.348497][ T367] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 100.354376][ T367] RIP: 0033:0x7fd9921efe99 [ 100.358918][ T367] Code: Unable to access opcode bytes at RIP 0x7fd9921efe6f. [ 100.366285][ T367] RSP: 002b:00007fffce68c758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 100.374695][ T367] RAX: ffffffffffffffda RBX: 00007fd99228532f RCX: 00007fd9921efe99 [ 100.382743][ T367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 100.390703][ T367] RBP: 000000000000000c R08: 0000000000000000 R09: 00007fd99228530a [ 100.398659][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffce68d9b0 [ 100.406615][ T367] R13: 00007fd99228530a R14: 000000000000fcc3 R15: 00007fffce68d9f0 [ 100.414576][ T367] [ 100.417619][ T60] CPU: 1 PID: 60 Comm: kworker/1:2 Not tainted syzkaller #0 [ 100.424945][ T60] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 100.435017][ T60] Workqueue: wg-kex-wg0 wg_packet_handshake_receive_worker [ 100.442212][ T60] Call Trace: [ 100.445475][ T60] [ 100.448390][ T60] __dump_stack+0x21/0x30 [ 100.452707][ T60] dump_stack_lvl+0x110/0x170 [ 100.457371][ T60] ? show_regs_print_info+0x20/0x20 [ 100.462644][ T60] ? prandom_u32+0x24d/0x290 [ 100.467226][ T60] dump_stack+0x15/0x20 [ 100.471374][ T60] should_fail+0x3ab/0x500 [ 100.475781][ T60] __should_failslab+0xa4/0xe0 [ 100.480534][ T60] should_failslab+0x9/0x20 [ 100.485059][ T60] slab_pre_alloc_hook+0x39/0xd0 [ 100.489982][ T60] ? __alloc_skb+0xe4/0x730 [ 100.494499][ T60] kmem_cache_alloc+0x44/0x260 [ 100.499254][ T60] __alloc_skb+0xe4/0x730 [ 100.503571][ T60] wg_socket_send_buffer_to_peer+0x37/0x170 [ 100.509451][ T60] ? ktime_get_coarse_with_offset+0x153/0x1a0 [ 100.515508][ T60] wg_packet_send_handshake_response+0x1af/0x230 [ 100.521861][ T60] ? wg_packet_send_queued_handshake_initiation+0x210/0x210 [ 100.529138][ T60] ? wg_socket_set_peer_endpoint+0x314/0x970 [ 100.535109][ T60] wg_packet_handshake_receive_worker+0x512/0x910 [ 100.541514][ T60] process_one_work+0x6c8/0xbb0 [ 100.546357][ T60] worker_thread+0xaa0/0x1250 [ 100.551020][ T60] ? __kasan_check_read+0x11/0x20 [ 100.556034][ T60] kthread+0x3f5/0x4f0 [ 100.560087][ T60] ? worker_clr_flags+0x190/0x190 [ 100.565095][ T60] ? kthread_blkcg+0xd0/0xd0 [ 100.569673][ T60] ret_from_fork+0x1f/0x30 [ 100.574074][ T60]