23 ff ff ff [ 246.203008][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 246.211521][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 246.220673][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 246.229093][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 246.237261][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 246.246132][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 246.254915][ C1] [ 246.257943][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 246.257983][ C1] FAULT_INJECTION: forcing a failure. [ 246.257983][ C1] name failslab, interval 1, probability 100, space 0, times 23 [ 246.265876][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 246.265900][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 246.265926][ C0] Call Trace: [ 246.265933][ C0] [ 246.303152][ C0] __dump_stack+0x21/0x24 [ 246.307500][ C0] dump_stack_lvl+0x110/0x170 [ 246.312276][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 246.317309][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 246.322965][ C0] ? timer_update_keys+0xb0/0xb0 [ 246.328711][ C0] dump_stack+0x15/0x24 [ 246.333965][ C0] should_fail_ex+0x3bf/0x510 [ 246.338663][ C0] __should_failslab+0xac/0xf0 [ 246.343571][ C0] should_failslab+0x9/0x20 [ 246.348071][ C0] kmem_cache_alloc_node+0x42/0x330 [ 246.353270][ C0] ? __alloc_skb+0xe8/0x4a0 [ 246.357795][ C0] __alloc_skb+0xe8/0x4a0 [ 246.362115][ C0] ndisc_send_rs+0x31d/0x870 [ 246.366784][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 246.371730][ C0] addrconf_rs_timer+0x35a/0x600 [ 246.376669][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 246.382384][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 246.387416][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 246.393239][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 246.398736][ C0] call_timer_fn+0x46/0x2a0 [ 246.403247][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 246.408785][ C0] __run_timers+0x646/0x9b0 [ 246.413305][ C0] ? calc_index+0x200/0x200 [ 246.418353][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 246.423603][ C0] run_timer_softirq+0x6a/0xf0 [ 246.428828][ C0] handle_softirqs+0x1d7/0x600 [ 246.433606][ C0] __irq_exit_rcu+0x52/0xf0 [ 246.438160][ C0] irq_exit_rcu+0x9/0x10 [ 246.442620][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 246.448484][ C0] [ 246.451542][ C0] [ 246.454836][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 246.461290][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 246.466985][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 246.487982][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 246.494316][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 246.502365][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 246.510326][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 246.518303][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 246.526265][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 246.534232][ C0] ? dump_stack_lvl+0x13b/0x170 [ 246.539223][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 246.544619][ C0] ? __kasan_check_write+0x14/0x20 [ 246.549771][ C0] dump_stack+0x15/0x24 [ 246.554210][ C0] should_fail_ex+0x3bf/0x510 [ 246.558908][ C0] __should_failslab+0xac/0xf0 [ 246.563674][ C0] should_failslab+0x9/0x20 [ 246.568170][ C0] kmem_cache_alloc_node+0x42/0x330 [ 246.573389][ C0] ? __alloc_skb+0xe8/0x4a0 [ 246.577934][ C0] __alloc_skb+0xe8/0x4a0 [ 246.582369][ C0] ndisc_send_rs+0x31d/0x870 [ 246.587255][ C0] addrconf_dad_completed+0x958/0xe80 [ 246.592718][ C0] ? addrconf_dad_stop+0x440/0x440 [ 246.597907][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 246.602966][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 246.608505][ C0] ? __kasan_check_write+0x14/0x20 [ 246.613613][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 246.619872][ C0] process_one_work+0x717/0xc30 [ 246.624751][ C0] worker_thread+0xa4d/0x11d0 [ 246.629515][ C0] kthread+0x281/0x320 [ 246.633596][ C0] ? __cfi_worker_thread+0x10/0x10 [ 246.638995][ C0] ? __cfi_kthread+0x10/0x10 [ 246.643582][ C0] ret_from_fork+0x1f/0x30 [ 246.648197][ C0] [ 246.651331][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 246.651365][ C0] FAULT_INJECTION: forcing a failure. [ 246.651365][ C0] name failslab, interval 1, probability 100, space 0, times 22 [ 246.659070][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 246.682362][ C1] Call Trace: [ 246.685642][ C1] [ 246.688581][ C1] __dump_stack+0x21/0x24 [ 246.693038][ C1] dump_stack_lvl+0x110/0x170 [ 246.697709][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 246.702820][ C1] ? calc_wheel_index+0x230/0x8d0 [ 246.707843][ C1] ? timer_update_keys+0xb0/0xb0 [ 246.712775][ C1] dump_stack+0x15/0x24 [ 246.717358][ C1] should_fail_ex+0x3bf/0x510 [ 246.722114][ C1] __should_failslab+0xac/0xf0 [ 246.726968][ C1] should_failslab+0x9/0x20 [ 246.731473][ C1] kmem_cache_alloc_node+0x42/0x330 [ 246.736672][ C1] ? __alloc_skb+0xe8/0x4a0 [ 246.741253][ C1] __alloc_skb+0xe8/0x4a0 [ 246.745680][ C1] ndisc_send_rs+0x31d/0x870 [ 246.750344][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 246.755291][ C1] addrconf_rs_timer+0x35a/0x600 [ 246.760223][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 246.765849][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 246.770983][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 246.776806][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 246.782513][ C1] call_timer_fn+0x46/0x2a0 [ 246.787307][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 246.793143][ C1] __run_timers+0x646/0x9b0 [ 246.797882][ C1] ? calc_index+0x200/0x200 [ 246.802493][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 246.808284][ C1] run_timer_softirq+0x6a/0xf0 [ 246.813079][ C1] handle_softirqs+0x1d7/0x600 [ 246.817931][ C1] __irq_exit_rcu+0x52/0xf0 [ 246.822437][ C1] irq_exit_rcu+0x9/0x10 [ 246.826673][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 246.832309][ C1] [ 246.835240][ C1] [ 246.838192][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 246.844219][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 246.850176][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 246.870139][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 246.876321][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 246.884312][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 246.892874][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 246.900850][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 246.909543][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 246.917809][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 246.923592][ C1] dump_stack_lvl+0xce/0x170 [ 246.928329][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 246.933491][ C1] ? preempt_schedule_irq+0xca/0x120 [ 246.939070][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 246.944929][ C1] dump_stack+0x15/0x24 [ 246.949113][ C1] should_fail_ex+0x3bf/0x510 [ 246.953888][ C1] __should_failslab+0xac/0xf0 [ 246.958680][ C1] should_failslab+0x9/0x20 [ 246.963224][ C1] kmem_cache_alloc_node+0x42/0x330 [ 246.968949][ C1] ? __alloc_skb+0xe8/0x4a0 [ 246.973533][ C1] __alloc_skb+0xe8/0x4a0 [ 246.978028][ C1] netlink_sendmsg+0x635/0xbd0 [ 246.982788][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 246.988067][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 246.993521][ C1] __sys_sendto+0x4ac/0x660 [ 246.998035][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 247.003050][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 247.009114][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 247.014647][ C1] ? xfd_validate_state+0x70/0x150 [ 247.019908][ C1] ? __kasan_check_write+0x14/0x20 [ 247.025213][ C1] __x64_sys_sendto+0xe5/0x100 [ 247.030173][ C1] x64_sys_call+0x83/0x9a0 [ 247.035018][ C1] do_syscall_64+0x4c/0xa0 [ 247.039515][ C1] ? clear_bhb_loop+0x30/0x80 [ 247.044627][ C1] ? clear_bhb_loop+0x30/0x80 [ 247.049320][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 247.055325][ C1] RIP: 0033:0x7f1702959017 [ 247.059994][ C1] 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 [ 247.079884][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 247.088418][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 247.096507][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 247.104592][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 247.112740][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 247.120725][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 247.128811][ C1] [ 247.131846][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 247.131898][ C1] FAULT_INJECTION: forcing a failure. [ 247.131898][ C1] name failslab, interval 1, probability 100, space 0, times 21 [ 247.139313][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 247.162523][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 247.168563][ C0] Call Trace: [ 247.171866][ C0] [ 247.174710][ C0] __dump_stack+0x21/0x24 [ 247.179229][ C0] dump_stack_lvl+0x110/0x170 [ 247.183979][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 247.189204][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 247.194254][ C0] ? timer_update_keys+0xb0/0xb0 [ 247.199205][ C0] dump_stack+0x15/0x24 [ 247.203395][ C0] should_fail_ex+0x3bf/0x510 [ 247.208182][ C0] __should_failslab+0xac/0xf0 [ 247.213023][ C0] should_failslab+0x9/0x20 [ 247.218262][ C0] kmem_cache_alloc_node+0x42/0x330 [ 247.223655][ C0] ? __alloc_skb+0xe8/0x4a0 [ 247.228501][ C0] __alloc_skb+0xe8/0x4a0 [ 247.233019][ C0] ndisc_send_rs+0x31d/0x870 [ 247.237659][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 247.242817][ C0] addrconf_rs_timer+0x35a/0x600 [ 247.247781][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 247.253515][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 247.258786][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 247.264475][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 247.270066][ C0] call_timer_fn+0x46/0x2a0 [ 247.274860][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 247.280420][ C0] __run_timers+0x646/0x9b0 [ 247.284943][ C0] ? calc_index+0x200/0x200 [ 247.289578][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 247.295336][ C0] run_timer_softirq+0x6a/0xf0 [ 247.300301][ C0] handle_softirqs+0x1d7/0x600 [ 247.305192][ C0] __irq_exit_rcu+0x52/0xf0 [ 247.309716][ C0] irq_exit_rcu+0x9/0x10 [ 247.313959][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 247.319594][ C0] [ 247.322512][ C0] [ 247.325432][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 247.331438][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 247.336895][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 247.356698][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 247.362962][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 247.370926][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 247.378992][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 247.386995][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 247.394993][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 247.403787][ C0] ? dump_stack_lvl+0x13b/0x170 [ 247.408809][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 247.413940][ C0] ? __kasan_check_write+0x14/0x20 [ 247.419223][ C0] dump_stack+0x15/0x24 [ 247.423488][ C0] should_fail_ex+0x3bf/0x510 [ 247.428612][ C0] __should_failslab+0xac/0xf0 [ 247.433390][ C0] should_failslab+0x9/0x20 [ 247.438087][ C0] kmem_cache_alloc_node+0x42/0x330 [ 247.444058][ C0] ? __alloc_skb+0xe8/0x4a0 [ 247.449129][ C0] __alloc_skb+0xe8/0x4a0 [ 247.453500][ C0] ndisc_send_rs+0x31d/0x870 [ 247.458113][ C0] addrconf_dad_completed+0x958/0xe80 [ 247.463495][ C0] ? addrconf_dad_stop+0x440/0x440 [ 247.468980][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 247.474046][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 247.479967][ C0] ? __kasan_check_write+0x14/0x20 [ 247.485219][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 247.491147][ C0] process_one_work+0x717/0xc30 [ 247.496252][ C0] worker_thread+0xa4d/0x11d0 [ 247.501337][ C0] kthread+0x281/0x320 [ 247.505514][ C0] ? __cfi_worker_thread+0x10/0x10 [ 247.510657][ C0] ? __cfi_kthread+0x10/0x10 [ 247.515292][ C0] ret_from_fork+0x1f/0x30 [ 247.519731][ C0] [ 247.522818][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 247.522862][ C0] FAULT_INJECTION: forcing a failure. [ 247.522862][ C0] name failslab, interval 1, probability 100, space 0, times 20 [ 247.530291][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 247.530304][ C1] Call Trace: [ 247.530312][ C1] [ 247.559333][ C1] __dump_stack+0x21/0x24 [ 247.563772][ C1] dump_stack_lvl+0x110/0x170 [ 247.568463][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 247.573693][ C1] ? calc_wheel_index+0x230/0x8d0 [ 247.578806][ C1] ? timer_update_keys+0xb0/0xb0 [ 247.583862][ C1] dump_stack+0x15/0x24 [ 247.588197][ C1] should_fail_ex+0x3bf/0x510 [ 247.592989][ C1] __should_failslab+0xac/0xf0 [ 247.598099][ C1] should_failslab+0x9/0x20 [ 247.602598][ C1] kmem_cache_alloc_node+0x42/0x330 [ 247.607804][ C1] ? __alloc_skb+0xe8/0x4a0 [ 247.612301][ C1] __alloc_skb+0xe8/0x4a0 [ 247.616623][ C1] ndisc_send_rs+0x31d/0x870 [ 247.621220][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 247.626380][ C1] addrconf_rs_timer+0x35a/0x600 [ 247.631348][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 247.636967][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 247.642139][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 247.648061][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 247.653558][ C1] call_timer_fn+0x46/0x2a0 [ 247.658088][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 247.663541][ C1] __run_timers+0x646/0x9b0 [ 247.668217][ C1] ? calc_index+0x200/0x200 [ 247.672895][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 247.678119][ C1] run_timer_softirq+0x6a/0xf0 [ 247.683095][ C1] handle_softirqs+0x1d7/0x600 [ 247.688133][ C1] __irq_exit_rcu+0x52/0xf0 [ 247.692667][ C1] irq_exit_rcu+0x9/0x10 [ 247.696964][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 247.702806][ C1] [ 247.706057][ C1] [ 247.709008][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 247.715222][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 247.721558][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 247.742467][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 247.748631][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 247.756615][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 247.764691][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 247.772694][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 247.781011][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 247.789015][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 247.794450][ C1] dump_stack_lvl+0xce/0x170 [ 247.799249][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 247.804561][ C1] ? preempt_schedule_irq+0xca/0x120 [ 247.810030][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 247.815803][ C1] dump_stack+0x15/0x24 [ 247.819989][ C1] should_fail_ex+0x3bf/0x510 [ 247.824784][ C1] __should_failslab+0xac/0xf0 [ 247.829633][ C1] should_failslab+0x9/0x20 [ 247.834335][ C1] kmem_cache_alloc_node+0x42/0x330 [ 247.839575][ C1] ? __alloc_skb+0xe8/0x4a0 [ 247.844072][ C1] __alloc_skb+0xe8/0x4a0 [ 247.848406][ C1] netlink_sendmsg+0x635/0xbd0 [ 247.853183][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 247.858588][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 247.864328][ C1] __sys_sendto+0x4ac/0x660 [ 247.868957][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 247.874070][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 247.880397][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 247.885966][ C1] ? xfd_validate_state+0x70/0x150 [ 247.891187][ C1] ? __kasan_check_write+0x14/0x20 [ 247.896597][ C1] __x64_sys_sendto+0xe5/0x100 [ 247.901393][ C1] x64_sys_call+0x83/0x9a0 [ 247.905813][ C1] do_syscall_64+0x4c/0xa0 [ 247.910497][ C1] ? clear_bhb_loop+0x30/0x80 [ 247.915218][ C1] ? clear_bhb_loop+0x30/0x80 [ 247.919899][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 247.926014][ C1] RIP: 0033:0x7f1702959017 [ 247.930420][ C1] 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 [ 247.950371][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 247.958990][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 247.966976][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 247.975029][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 247.983348][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 247.991342][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 247.999696][ C1] [ 248.002820][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 248.002857][ C1] FAULT_INJECTION: forcing a failure. [ 248.002857][ C1] name failslab, interval 1, probability 100, space 0, times 19 [ 248.010280][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 248.010295][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 248.039666][ C0] Call Trace: [ 248.043023][ C0] [ 248.045947][ C0] __dump_stack+0x21/0x24 [ 248.050583][ C0] dump_stack_lvl+0x110/0x170 [ 248.055666][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 248.060820][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 248.066225][ C0] ? timer_update_keys+0xb0/0xb0 [ 248.071279][ C0] dump_stack+0x15/0x24 [ 248.075435][ C0] should_fail_ex+0x3bf/0x510 [ 248.080160][ C0] __should_failslab+0xac/0xf0 [ 248.085340][ C0] should_failslab+0x9/0x20 [ 248.090404][ C0] kmem_cache_alloc_node+0x42/0x330 [ 248.095616][ C0] ? __alloc_skb+0xe8/0x4a0 [ 248.100124][ C0] __alloc_skb+0xe8/0x4a0 [ 248.104455][ C0] ndisc_send_rs+0x31d/0x870 [ 248.109217][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 248.114271][ C0] addrconf_rs_timer+0x35a/0x600 [ 248.119305][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 248.124851][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 248.130006][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 248.135924][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 248.141432][ C0] call_timer_fn+0x46/0x2a0 [ 248.146072][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 248.151642][ C0] __run_timers+0x646/0x9b0 [ 248.156175][ C0] ? calc_index+0x200/0x200 [ 248.161047][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 248.166334][ C0] run_timer_softirq+0x6a/0xf0 [ 248.171234][ C0] handle_softirqs+0x1d7/0x600 [ 248.176088][ C0] __irq_exit_rcu+0x52/0xf0 [ 248.180762][ C0] irq_exit_rcu+0x9/0x10 [ 248.185197][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 248.191032][ C0] [ 248.194127][ C0] [ 248.197046][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 248.203035][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 248.208494][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 248.229238][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 248.235515][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 248.243571][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 248.251537][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 248.259780][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 248.268288][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 248.277408][ C0] ? dump_stack_lvl+0x13b/0x170 [ 248.282471][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 248.287884][ C0] ? __kasan_check_write+0x14/0x20 [ 248.293023][ C0] dump_stack+0x15/0x24 [ 248.297316][ C0] should_fail_ex+0x3bf/0x510 [ 248.302836][ C0] __should_failslab+0xac/0xf0 [ 248.307743][ C0] should_failslab+0x9/0x20 [ 248.312241][ C0] kmem_cache_alloc_node+0x42/0x330 [ 248.317446][ C0] ? __alloc_skb+0xe8/0x4a0 [ 248.321963][ C0] __alloc_skb+0xe8/0x4a0 [ 248.326713][ C0] ndisc_send_rs+0x31d/0x870 [ 248.331294][ C0] addrconf_dad_completed+0x958/0xe80 [ 248.336834][ C0] ? addrconf_dad_stop+0x440/0x440 [ 248.342024][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 248.347048][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 248.352590][ C0] ? __kasan_check_write+0x14/0x20 [ 248.358058][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 248.364081][ C0] process_one_work+0x717/0xc30 [ 248.369139][ C0] worker_thread+0xa4d/0x11d0 [ 248.373935][ C0] kthread+0x281/0x320 [ 248.378042][ C0] ? __cfi_worker_thread+0x10/0x10 [ 248.383156][ C0] ? __cfi_kthread+0x10/0x10 [ 248.387856][ C0] ret_from_fork+0x1f/0x30 [ 248.392386][ C0] [ 248.395502][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 248.395547][ C0] FAULT_INJECTION: forcing a failure. [ 248.395547][ C0] name failslab, interval 1, probability 100, space 0, times 18 [ 248.403234][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 248.403246][ C1] Call Trace: [ 248.403254][ C1] [ 248.403261][ C1] __dump_stack+0x21/0x24 [ 248.437358][ C1] dump_stack_lvl+0x110/0x170 [ 248.442074][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 248.447123][ C1] ? calc_wheel_index+0x230/0x8d0 [ 248.452149][ C1] ? timer_update_keys+0xb0/0xb0 [ 248.457197][ C1] dump_stack+0x15/0x24 [ 248.461363][ C1] should_fail_ex+0x3bf/0x510 [ 248.466049][ C1] __should_failslab+0xac/0xf0 [ 248.470836][ C1] should_failslab+0x9/0x20 [ 248.475340][ C1] kmem_cache_alloc_node+0x42/0x330 [ 248.480537][ C1] ? __alloc_skb+0xe8/0x4a0 [ 248.485033][ C1] __alloc_skb+0xe8/0x4a0 [ 248.489381][ C1] ndisc_send_rs+0x31d/0x870 [ 248.494053][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 248.499169][ C1] addrconf_rs_timer+0x35a/0x600 [ 248.504108][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 248.509563][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 248.514673][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 248.520241][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 248.525780][ C1] call_timer_fn+0x46/0x2a0 [ 248.530287][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 248.536029][ C1] __run_timers+0x646/0x9b0 [ 248.540553][ C1] ? calc_index+0x200/0x200 [ 248.545056][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 248.550262][ C1] run_timer_softirq+0x6a/0xf0 [ 248.555038][ C1] handle_softirqs+0x1d7/0x600 [ 248.560238][ C1] __irq_exit_rcu+0x52/0xf0 [ 248.564754][ C1] irq_exit_rcu+0x9/0x10 [ 248.569027][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 248.574851][ C1] [ 248.577783][ C1] [ 248.580708][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 248.586698][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 248.592591][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 248.613078][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 248.620051][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 248.628209][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 248.636435][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 248.644433][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 248.652684][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 248.660757][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 248.666246][ C1] dump_stack_lvl+0xce/0x170 [ 248.670938][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 248.676318][ C1] ? preempt_schedule_irq+0xca/0x120 [ 248.682007][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 248.687758][ C1] dump_stack+0x15/0x24 [ 248.691923][ C1] should_fail_ex+0x3bf/0x510 [ 248.697079][ C1] __should_failslab+0xac/0xf0 [ 248.701978][ C1] should_failslab+0x9/0x20 [ 248.706483][ C1] kmem_cache_alloc_node+0x42/0x330 [ 248.711788][ C1] ? __alloc_skb+0xe8/0x4a0 [ 248.716374][ C1] __alloc_skb+0xe8/0x4a0 [ 248.720731][ C1] netlink_sendmsg+0x635/0xbd0 [ 248.725584][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 248.730870][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 248.736426][ C1] __sys_sendto+0x4ac/0x660 [ 248.740942][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 248.745967][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 248.752040][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 248.757690][ C1] ? xfd_validate_state+0x70/0x150 [ 248.762802][ C1] ? __kasan_check_write+0x14/0x20 [ 248.767908][ C1] __x64_sys_sendto+0xe5/0x100 [ 248.772694][ C1] x64_sys_call+0x83/0x9a0 [ 248.777105][ C1] do_syscall_64+0x4c/0xa0 [ 248.781602][ C1] ? clear_bhb_loop+0x30/0x80 [ 248.786264][ C1] ? clear_bhb_loop+0x30/0x80 [ 248.791018][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 248.797006][ C1] RIP: 0033:0x7f1702959017 [ 248.801416][ C1] 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 [ 248.821369][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 248.829918][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 248.838084][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 248.846148][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 248.854810][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 248.862860][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 248.871229][ C1] [ 248.874259][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 248.874300][ C1] FAULT_INJECTION: forcing a failure. [ 248.874300][ C1] name failslab, interval 1, probability 100, space 0, times 17 [ 248.881769][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 248.881791][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 248.881816][ C0] Call Trace: [ 248.914269][ C0] [ 248.917106][ C0] __dump_stack+0x21/0x24 [ 248.921443][ C0] dump_stack_lvl+0x110/0x170 [ 248.926496][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 248.931551][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 248.937022][ C0] ? timer_update_keys+0xb0/0xb0 [ 248.942221][ C0] dump_stack+0x15/0x24 [ 248.946547][ C0] should_fail_ex+0x3bf/0x510 [ 248.951231][ C0] __should_failslab+0xac/0xf0 [ 248.955995][ C0] should_failslab+0x9/0x20 [ 248.960787][ C0] kmem_cache_alloc_node+0x42/0x330 [ 248.966086][ C0] ? __alloc_skb+0xe8/0x4a0 [ 248.970583][ C0] __alloc_skb+0xe8/0x4a0 [ 248.974904][ C0] ndisc_send_rs+0x31d/0x870 [ 248.979488][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 248.984512][ C0] addrconf_rs_timer+0x35a/0x600 [ 248.989451][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 248.995390][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 249.000863][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 249.006434][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.011990][ C0] call_timer_fn+0x46/0x2a0 [ 249.017173][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.022651][ C0] __run_timers+0x646/0x9b0 [ 249.027165][ C0] ? calc_index+0x200/0x200 [ 249.031675][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 249.036885][ C0] run_timer_softirq+0x6a/0xf0 [ 249.041745][ C0] handle_softirqs+0x1d7/0x600 [ 249.046607][ C0] __irq_exit_rcu+0x52/0xf0 [ 249.051392][ C0] irq_exit_rcu+0x9/0x10 [ 249.055659][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 249.061523][ C0] [ 249.064671][ C0] [ 249.067686][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 249.073833][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 249.079650][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 249.099689][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 249.105948][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 249.114215][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 249.122203][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 249.130532][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 249.138678][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 249.146743][ C0] ? dump_stack_lvl+0x13b/0x170 [ 249.151774][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 249.156897][ C0] ? __kasan_check_write+0x14/0x20 [ 249.162032][ C0] dump_stack+0x15/0x24 [ 249.166185][ C0] should_fail_ex+0x3bf/0x510 [ 249.170862][ C0] __should_failslab+0xac/0xf0 [ 249.175681][ C0] should_failslab+0x9/0x20 [ 249.180353][ C0] kmem_cache_alloc_node+0x42/0x330 [ 249.185640][ C0] ? __alloc_skb+0xe8/0x4a0 [ 249.190134][ C0] __alloc_skb+0xe8/0x4a0 [ 249.194578][ C0] ndisc_send_rs+0x31d/0x870 [ 249.199343][ C0] addrconf_dad_completed+0x958/0xe80 [ 249.204711][ C0] ? addrconf_dad_stop+0x440/0x440 [ 249.209842][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 249.214997][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 249.220553][ C0] ? __kasan_check_write+0x14/0x20 [ 249.225786][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 249.231762][ C0] process_one_work+0x717/0xc30 [ 249.236700][ C0] worker_thread+0xa4d/0x11d0 [ 249.241468][ C0] kthread+0x281/0x320 [ 249.245532][ C0] ? __cfi_worker_thread+0x10/0x10 [ 249.250724][ C0] ? __cfi_kthread+0x10/0x10 [ 249.255324][ C0] ret_from_fork+0x1f/0x30 [ 249.259883][ C0] [ 249.262930][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 249.262972][ C0] FAULT_INJECTION: forcing a failure. [ 249.262972][ C0] name failslab, interval 1, probability 100, space 0, times 16 [ 249.270482][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 249.270496][ C1] Call Trace: [ 249.270503][ C1] [ 249.299906][ C1] __dump_stack+0x21/0x24 [ 249.304256][ C1] dump_stack_lvl+0x110/0x170 [ 249.309015][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 249.314212][ C1] ? calc_wheel_index+0x230/0x8d0 [ 249.319344][ C1] ? timer_update_keys+0xb0/0xb0 [ 249.324305][ C1] dump_stack+0x15/0x24 [ 249.328494][ C1] should_fail_ex+0x3bf/0x510 [ 249.333190][ C1] __should_failslab+0xac/0xf0 [ 249.337951][ C1] should_failslab+0x9/0x20 [ 249.342457][ C1] kmem_cache_alloc_node+0x42/0x330 [ 249.347828][ C1] ? __alloc_skb+0xe8/0x4a0 [ 249.352415][ C1] __alloc_skb+0xe8/0x4a0 [ 249.356740][ C1] ndisc_send_rs+0x31d/0x870 [ 249.361335][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 249.366295][ C1] addrconf_rs_timer+0x35a/0x600 [ 249.371225][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.376687][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.382172][ C1] call_timer_fn+0x46/0x2a0 [ 249.387018][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.392555][ C1] __run_timers+0x646/0x9b0 [ 249.397059][ C1] ? calc_index+0x200/0x200 [ 249.401615][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 249.406815][ C1] run_timer_softirq+0x6a/0xf0 [ 249.411665][ C1] handle_softirqs+0x1d7/0x600 [ 249.416632][ C1] __irq_exit_rcu+0x52/0xf0 [ 249.421137][ C1] irq_exit_rcu+0x9/0x10 [ 249.425467][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 249.431370][ C1] [ 249.434304][ C1] [ 249.437262][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 249.443339][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 249.449324][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 249.469370][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 249.475558][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 249.483587][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 249.491580][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 249.499839][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 249.508089][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 249.516425][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 249.521814][ C1] dump_stack_lvl+0xce/0x170 [ 249.526491][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 249.531546][ C1] ? preempt_schedule_irq+0xca/0x120 [ 249.536839][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 249.542570][ C1] dump_stack+0x15/0x24 [ 249.546805][ C1] should_fail_ex+0x3bf/0x510 [ 249.551489][ C1] __should_failslab+0xac/0xf0 [ 249.556253][ C1] should_failslab+0x9/0x20 [ 249.560843][ C1] kmem_cache_alloc_node+0x42/0x330 [ 249.566299][ C1] ? __alloc_skb+0xe8/0x4a0 [ 249.570884][ C1] __alloc_skb+0xe8/0x4a0 [ 249.575312][ C1] netlink_sendmsg+0x635/0xbd0 [ 249.580376][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 249.585684][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 249.591344][ C1] __sys_sendto+0x4ac/0x660 [ 249.595978][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 249.601379][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 249.607498][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 249.613162][ C1] ? xfd_validate_state+0x70/0x150 [ 249.618637][ C1] ? __kasan_check_write+0x14/0x20 [ 249.626459][ C1] __x64_sys_sendto+0xe5/0x100 [ 249.634893][ C1] x64_sys_call+0x83/0x9a0 [ 249.639306][ C1] do_syscall_64+0x4c/0xa0 [ 249.643720][ C1] ? clear_bhb_loop+0x30/0x80 [ 249.648387][ C1] ? clear_bhb_loop+0x30/0x80 [ 249.653501][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 249.660030][ C1] RIP: 0033:0x7f1702959017 [ 249.664616][ C1] 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 [ 249.684998][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 249.694126][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 249.702465][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 249.710443][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 249.718703][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 249.726926][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 249.735367][ C1] [ 249.738758][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 249.738811][ C1] FAULT_INJECTION: forcing a failure. [ 249.738811][ C1] name failslab, interval 1, probability 100, space 0, times 15 [ 249.746145][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 249.746161][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 249.775869][ C0] Call Trace: [ 249.779154][ C0] [ 249.782012][ C0] __dump_stack+0x21/0x24 [ 249.786523][ C0] dump_stack_lvl+0x110/0x170 [ 249.791281][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 249.796385][ C0] ? calc_wheel_index+0x230/0x8d0 [ 249.801673][ C0] ? timer_update_keys+0xb0/0xb0 [ 249.806745][ C0] dump_stack+0x15/0x24 [ 249.811174][ C0] should_fail_ex+0x3bf/0x510 [ 249.816241][ C0] __should_failslab+0xac/0xf0 [ 249.821124][ C0] should_failslab+0x9/0x20 [ 249.825637][ C0] kmem_cache_alloc_node+0x42/0x330 [ 249.831098][ C0] ? __alloc_skb+0xe8/0x4a0 [ 249.835772][ C0] __alloc_skb+0xe8/0x4a0 [ 249.840199][ C0] ndisc_send_rs+0x31d/0x870 [ 249.844811][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 249.849791][ C0] addrconf_rs_timer+0x35a/0x600 [ 249.856018][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.861703][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 249.866920][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 249.872494][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.878452][ C0] call_timer_fn+0x46/0x2a0 [ 249.883087][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 249.888730][ C0] __run_timers+0x646/0x9b0 [ 249.893331][ C0] ? calc_index+0x200/0x200 [ 249.897919][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 249.903122][ C0] run_timer_softirq+0x6a/0xf0 [ 249.908069][ C0] handle_softirqs+0x1d7/0x600 [ 249.913067][ C0] __irq_exit_rcu+0x52/0xf0 [ 249.917781][ C0] irq_exit_rcu+0x9/0x10 [ 249.922150][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 249.928418][ C0] [ 249.931339][ C0] [ 249.934284][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 249.941023][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 249.946530][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 249.967547][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 249.973738][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 249.981790][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 249.989755][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 249.997994][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 250.006196][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 250.014804][ C0] ? dump_stack_lvl+0x13b/0x170 [ 250.019667][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 250.024687][ C0] ? __kasan_check_write+0x14/0x20 [ 250.029991][ C0] dump_stack+0x15/0x24 [ 250.034765][ C0] should_fail_ex+0x3bf/0x510 [ 250.039561][ C0] __should_failslab+0xac/0xf0 [ 250.044353][ C0] should_failslab+0x9/0x20 [ 250.048873][ C0] kmem_cache_alloc_node+0x42/0x330 [ 250.054179][ C0] ? __alloc_skb+0xe8/0x4a0 [ 250.058723][ C0] __alloc_skb+0xe8/0x4a0 [ 250.063260][ C0] ndisc_send_rs+0x31d/0x870 [ 250.068050][ C0] addrconf_dad_completed+0x958/0xe80 [ 250.073630][ C0] ? addrconf_dad_stop+0x440/0x440 [ 250.078769][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 250.084062][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 250.089545][ C0] ? __kasan_check_write+0x14/0x20 [ 250.094764][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 250.100785][ C0] process_one_work+0x717/0xc30 [ 250.105918][ C0] worker_thread+0xa4d/0x11d0 [ 250.110787][ C0] kthread+0x281/0x320 [ 250.114851][ C0] ? __cfi_worker_thread+0x10/0x10 [ 250.120223][ C0] ? __cfi_kthread+0x10/0x10 [ 250.124936][ C0] ret_from_fork+0x1f/0x30 [ 250.129384][ C0] [ 250.132400][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 250.132437][ C0] FAULT_INJECTION: forcing a failure. [ 250.132437][ C0] name failslab, interval 1, probability 100, space 0, times 14 [ 250.139866][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 250.163445][ C1] Call Trace: [ 250.166760][ C1] [ 250.169683][ C1] __dump_stack+0x21/0x24 [ 250.174015][ C1] dump_stack_lvl+0x110/0x170 [ 250.178777][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 250.183795][ C1] ? calc_wheel_index+0x1b5/0x8d0 [ 250.188821][ C1] ? timer_update_keys+0xb0/0xb0 [ 250.193785][ C1] dump_stack+0x15/0x24 [ 250.198062][ C1] should_fail_ex+0x3bf/0x510 [ 250.202737][ C1] __should_failslab+0xac/0xf0 [ 250.207604][ C1] should_failslab+0x9/0x20 [ 250.212286][ C1] kmem_cache_alloc_node+0x42/0x330 [ 250.217530][ C1] ? __alloc_skb+0xe8/0x4a0 [ 250.222090][ C1] __alloc_skb+0xe8/0x4a0 [ 250.226463][ C1] ndisc_send_rs+0x31d/0x870 [ 250.231070][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 250.236030][ C1] addrconf_rs_timer+0x35a/0x600 [ 250.241013][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 250.246511][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 250.251606][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 250.257153][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 250.262613][ C1] call_timer_fn+0x46/0x2a0 [ 250.267116][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 250.272571][ C1] __run_timers+0x646/0x9b0 [ 250.277090][ C1] ? calc_index+0x200/0x200 [ 250.281619][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 250.287020][ C1] run_timer_softirq+0x6a/0xf0 [ 250.291893][ C1] handle_softirqs+0x1d7/0x600 [ 250.297292][ C1] __irq_exit_rcu+0x52/0xf0 [ 250.301795][ C1] irq_exit_rcu+0x9/0x10 [ 250.306137][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 250.311777][ C1] [ 250.314702][ C1] [ 250.317625][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 250.323800][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 250.329780][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 250.349580][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 250.355748][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 250.363813][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 250.371881][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 250.379854][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 250.387837][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 250.395859][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 250.401335][ C1] dump_stack_lvl+0xce/0x170 [ 250.405924][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 250.410941][ C1] ? preempt_schedule_irq+0xca/0x120 [ 250.416311][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 250.422224][ C1] dump_stack+0x15/0x24 [ 250.426717][ C1] should_fail_ex+0x3bf/0x510 [ 250.431429][ C1] __should_failslab+0xac/0xf0 [ 250.436657][ C1] should_failslab+0x9/0x20 [ 250.441166][ C1] kmem_cache_alloc_node+0x42/0x330 [ 250.446365][ C1] ? __alloc_skb+0xe8/0x4a0 [ 250.450890][ C1] __alloc_skb+0xe8/0x4a0 [ 250.455393][ C1] netlink_sendmsg+0x635/0xbd0 [ 250.460295][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 250.465857][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 250.471612][ C1] __sys_sendto+0x4ac/0x660 [ 250.476206][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 250.481224][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 250.487307][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 250.492883][ C1] ? xfd_validate_state+0x70/0x150 [ 250.498040][ C1] ? __kasan_check_write+0x14/0x20 [ 250.503278][ C1] __x64_sys_sendto+0xe5/0x100 [ 250.508038][ C1] x64_sys_call+0x83/0x9a0 [ 250.512468][ C1] do_syscall_64+0x4c/0xa0 [ 250.516877][ C1] ? clear_bhb_loop+0x30/0x80 [ 250.521664][ C1] ? clear_bhb_loop+0x30/0x80 [ 250.526634][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 250.532662][ C1] RIP: 0033:0x7f1702959017 [ 250.537177][ C1] 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 [ 250.557624][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 250.566063][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 250.574388][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 250.582616][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 250.590615][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 250.598856][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 250.607205][ C1] [ 250.610244][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 250.610276][ C1] FAULT_INJECTION: forcing a failure. [ 250.610276][ C1] name failslab, interval 1, probability 100, space 0, times 13 [ 250.618340][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 250.643231][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 250.649760][ C0] Call Trace: [ 250.653160][ C0] [ 250.656100][ C0] __dump_stack+0x21/0x24 [ 250.660469][ C0] dump_stack_lvl+0x110/0x170 [ 250.665343][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 250.670395][ C0] ? calc_wheel_index+0x230/0x8d0 [ 250.675429][ C0] ? timer_update_keys+0xb0/0xb0 [ 250.680822][ C0] dump_stack+0x15/0x24 [ 250.685006][ C0] should_fail_ex+0x3bf/0x510 [ 250.689880][ C0] __should_failslab+0xac/0xf0 [ 250.694676][ C0] should_failslab+0x9/0x20 [ 250.699367][ C0] kmem_cache_alloc_node+0x42/0x330 [ 250.705205][ C0] ? __alloc_skb+0xe8/0x4a0 [ 250.709724][ C0] __alloc_skb+0xe8/0x4a0 [ 250.714053][ C0] ndisc_send_rs+0x31d/0x870 [ 250.718640][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 250.723678][ C0] addrconf_rs_timer+0x35a/0x600 [ 250.728715][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 250.734303][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 250.739343][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 250.744888][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 250.750356][ C0] call_timer_fn+0x46/0x2a0 [ 250.754951][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 250.760496][ C0] __run_timers+0x646/0x9b0 [ 250.765028][ C0] ? calc_index+0x200/0x200 [ 250.769524][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 250.774747][ C0] run_timer_softirq+0x6a/0xf0 [ 250.779525][ C0] handle_softirqs+0x1d7/0x600 [ 250.784286][ C0] __irq_exit_rcu+0x52/0xf0 [ 250.788782][ C0] irq_exit_rcu+0x9/0x10 [ 250.793029][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 250.798858][ C0] [ 250.801788][ C0] [ 250.804707][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 250.810776][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 250.816250][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 250.836499][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 250.842748][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 250.850721][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 250.858686][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 250.867012][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 250.875416][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 250.883819][ C0] ? dump_stack_lvl+0x13b/0x170 [ 250.888689][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 250.893729][ C0] ? __kasan_check_write+0x14/0x20 [ 250.898857][ C0] dump_stack+0x15/0x24 [ 250.903044][ C0] should_fail_ex+0x3bf/0x510 [ 250.907735][ C0] __should_failslab+0xac/0xf0 [ 250.912501][ C0] should_failslab+0x9/0x20 [ 250.917002][ C0] kmem_cache_alloc_node+0x42/0x330 [ 250.922288][ C0] ? __alloc_skb+0xe8/0x4a0 [ 250.926785][ C0] __alloc_skb+0xe8/0x4a0 [ 250.931366][ C0] ndisc_send_rs+0x31d/0x870 [ 250.936068][ C0] addrconf_dad_completed+0x958/0xe80 [ 250.941668][ C0] ? addrconf_dad_stop+0x440/0x440 [ 250.947052][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 250.952081][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 250.957893][ C0] ? __kasan_check_write+0x14/0x20 [ 250.962998][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 250.969148][ C0] process_one_work+0x717/0xc30 [ 250.974012][ C0] worker_thread+0xa4d/0x11d0 [ 250.978704][ C0] kthread+0x281/0x320 [ 250.982787][ C0] ? __cfi_worker_thread+0x10/0x10 [ 250.987896][ C0] ? __cfi_kthread+0x10/0x10 [ 250.992497][ C0] ret_from_fork+0x1f/0x30 [ 250.997502][ C0] [ 251.000957][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 251.000988][ C0] FAULT_INJECTION: forcing a failure. [ 251.000988][ C0] name failslab, interval 1, probability 100, space 0, times 12 [ 251.008509][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 251.031920][ C1] Call Trace: [ 251.035198][ C1] [ 251.038038][ C1] __dump_stack+0x21/0x24 [ 251.042368][ C1] dump_stack_lvl+0x110/0x170 [ 251.047085][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 251.052193][ C1] ? calc_wheel_index+0x230/0x8d0 [ 251.057228][ C1] ? timer_update_keys+0xb0/0xb0 [ 251.062285][ C1] dump_stack+0x15/0x24 [ 251.066458][ C1] should_fail_ex+0x3bf/0x510 [ 251.071334][ C1] __should_failslab+0xac/0xf0 [ 251.076121][ C1] should_failslab+0x9/0x20 [ 251.080715][ C1] kmem_cache_alloc_node+0x42/0x330 [ 251.085919][ C1] ? __alloc_skb+0xe8/0x4a0 [ 251.090421][ C1] __alloc_skb+0xe8/0x4a0 [ 251.094915][ C1] ndisc_send_rs+0x31d/0x870 [ 251.099592][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 251.104730][ C1] addrconf_rs_timer+0x35a/0x600 [ 251.109681][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.115150][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 251.120261][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 251.125887][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.131546][ C1] call_timer_fn+0x46/0x2a0 [ 251.136057][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.141578][ C1] __run_timers+0x646/0x9b0 [ 251.146277][ C1] ? calc_index+0x200/0x200 [ 251.150781][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 251.156255][ C1] run_timer_softirq+0x6a/0xf0 [ 251.161285][ C1] handle_softirqs+0x1d7/0x600 [ 251.166072][ C1] __irq_exit_rcu+0x52/0xf0 [ 251.170579][ C1] irq_exit_rcu+0x9/0x10 [ 251.174903][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 251.180539][ C1] [ 251.183460][ C1] [ 251.186380][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 251.192359][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 251.198337][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 251.218376][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 251.224461][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 251.232693][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 251.240754][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 251.248724][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 251.256799][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 251.264779][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 251.270165][ C1] dump_stack_lvl+0xce/0x170 [ 251.274760][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 251.279871][ C1] ? preempt_schedule_irq+0xca/0x120 [ 251.285151][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 251.290884][ C1] dump_stack+0x15/0x24 [ 251.295037][ C1] should_fail_ex+0x3bf/0x510 [ 251.299800][ C1] __should_failslab+0xac/0xf0 [ 251.304562][ C1] should_failslab+0x9/0x20 [ 251.309073][ C1] kmem_cache_alloc_node+0x42/0x330 [ 251.314353][ C1] ? __alloc_skb+0xe8/0x4a0 [ 251.318846][ C1] __alloc_skb+0xe8/0x4a0 [ 251.323164][ C1] netlink_sendmsg+0x635/0xbd0 [ 251.327922][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 251.333202][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 251.338747][ C1] __sys_sendto+0x4ac/0x660 [ 251.343335][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 251.348379][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 251.354463][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 251.360001][ C1] ? xfd_validate_state+0x70/0x150 [ 251.365110][ C1] ? __kasan_check_write+0x14/0x20 [ 251.370221][ C1] __x64_sys_sendto+0xe5/0x100 [ 251.374980][ C1] x64_sys_call+0x83/0x9a0 [ 251.379402][ C1] do_syscall_64+0x4c/0xa0 [ 251.383832][ C1] ? clear_bhb_loop+0x30/0x80 [ 251.388509][ C1] ? clear_bhb_loop+0x30/0x80 [ 251.393209][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 251.399107][ C1] RIP: 0033:0x7f1702959017 [ 251.403516][ C1] 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 [ 251.423121][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 251.431627][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 251.440035][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 251.448206][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 251.456615][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 251.464952][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 251.472923][ C1] [ 251.475961][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 251.475996][ C1] FAULT_INJECTION: forcing a failure. [ 251.475996][ C1] name failslab, interval 1, probability 100, space 0, times 11 [ 251.483342][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 251.483357][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 251.512747][ C0] Call Trace: [ 251.516036][ C0] [ 251.518889][ C0] __dump_stack+0x21/0x24 [ 251.523965][ C0] dump_stack_lvl+0x110/0x170 [ 251.528889][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 251.533941][ C0] ? calc_wheel_index+0x230/0x8d0 [ 251.538985][ C0] ? timer_update_keys+0xb0/0xb0 [ 251.543918][ C0] dump_stack+0x15/0x24 [ 251.548428][ C0] should_fail_ex+0x3bf/0x510 [ 251.553139][ C0] __should_failslab+0xac/0xf0 [ 251.557930][ C0] should_failslab+0x9/0x20 [ 251.562435][ C0] kmem_cache_alloc_node+0x42/0x330 [ 251.567736][ C0] ? __alloc_skb+0xe8/0x4a0 [ 251.572408][ C0] __alloc_skb+0xe8/0x4a0 [ 251.576736][ C0] ndisc_send_rs+0x31d/0x870 [ 251.581402][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 251.586483][ C0] addrconf_rs_timer+0x35a/0x600 [ 251.591474][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.596960][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 251.602083][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 251.607644][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.613099][ C0] call_timer_fn+0x46/0x2a0 [ 251.617605][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.623248][ C0] __run_timers+0x646/0x9b0 [ 251.627876][ C0] ? calc_index+0x200/0x200 [ 251.632404][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 251.637649][ C0] run_timer_softirq+0x6a/0xf0 [ 251.642438][ C0] handle_softirqs+0x1d7/0x600 [ 251.647199][ C0] __irq_exit_rcu+0x52/0xf0 [ 251.651705][ C0] irq_exit_rcu+0x9/0x10 [ 251.655961][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 251.661621][ C0] [ 251.664660][ C0] [ 251.667613][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 251.673781][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 251.679504][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 251.699403][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 251.705557][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 251.713516][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 251.721478][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 251.729540][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 251.737539][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 251.745541][ C0] ? dump_stack_lvl+0x13b/0x170 [ 251.750417][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 251.755522][ C0] ? __kasan_check_write+0x14/0x20 [ 251.760652][ C0] dump_stack+0x15/0x24 [ 251.764921][ C0] should_fail_ex+0x3bf/0x510 [ 251.769699][ C0] __should_failslab+0xac/0xf0 [ 251.774683][ C0] should_failslab+0x9/0x20 [ 251.779276][ C0] kmem_cache_alloc_node+0x42/0x330 [ 251.784680][ C0] ? __alloc_skb+0xe8/0x4a0 [ 251.789189][ C0] __alloc_skb+0xe8/0x4a0 [ 251.793534][ C0] ndisc_send_rs+0x31d/0x870 [ 251.798150][ C0] addrconf_dad_completed+0x958/0xe80 [ 251.803565][ C0] ? addrconf_dad_stop+0x440/0x440 [ 251.808762][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 251.814116][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 251.819683][ C0] ? __kasan_check_write+0x14/0x20 [ 251.824797][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 251.830703][ C0] process_one_work+0x717/0xc30 [ 251.835599][ C0] worker_thread+0xa4d/0x11d0 [ 251.840304][ C0] kthread+0x281/0x320 [ 251.844397][ C0] ? __cfi_worker_thread+0x10/0x10 [ 251.849508][ C0] ? __cfi_kthread+0x10/0x10 [ 251.854103][ C0] ret_from_fork+0x1f/0x30 [ 251.858723][ C0] [ 251.861761][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 251.861809][ C0] FAULT_INJECTION: forcing a failure. [ 251.861809][ C0] name failslab, interval 1, probability 100, space 0, times 10 [ 251.869219][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 251.892248][ C1] Call Trace: [ 251.895531][ C1] [ 251.898824][ C1] __dump_stack+0x21/0x24 [ 251.903178][ C1] dump_stack_lvl+0x110/0x170 [ 251.907945][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 251.912974][ C1] ? calc_wheel_index+0x230/0x8d0 [ 251.918518][ C1] ? timer_update_keys+0xb0/0xb0 [ 251.923472][ C1] dump_stack+0x15/0x24 [ 251.927647][ C1] should_fail_ex+0x3bf/0x510 [ 251.932370][ C1] __should_failslab+0xac/0xf0 [ 251.937158][ C1] should_failslab+0x9/0x20 [ 251.941946][ C1] kmem_cache_alloc_node+0x42/0x330 [ 251.947174][ C1] ? __alloc_skb+0xe8/0x4a0 [ 251.951706][ C1] __alloc_skb+0xe8/0x4a0 [ 251.956040][ C1] ndisc_send_rs+0x31d/0x870 [ 251.960798][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 251.965735][ C1] addrconf_rs_timer+0x35a/0x600 [ 251.970692][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.976151][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.981693][ C1] call_timer_fn+0x46/0x2a0 [ 251.986225][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 251.991709][ C1] __run_timers+0x646/0x9b0 [ 251.996226][ C1] ? calc_index+0x200/0x200 [ 252.000819][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 252.006018][ C1] run_timer_softirq+0x6a/0xf0 [ 252.010781][ C1] handle_softirqs+0x1d7/0x600 [ 252.015555][ C1] __irq_exit_rcu+0x52/0xf0 [ 252.020053][ C1] irq_exit_rcu+0x9/0x10 [ 252.024305][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 252.030055][ C1] [ 252.033071][ C1] [ 252.036199][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 252.042216][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 252.048120][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 252.068247][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 252.074600][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 252.082867][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 252.090942][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 252.098939][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 252.107183][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 252.115279][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 252.120693][ C1] dump_stack_lvl+0xce/0x170 [ 252.125338][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 252.130456][ C1] ? preempt_schedule_irq+0xca/0x120 [ 252.135741][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 252.141458][ C1] dump_stack+0x15/0x24 [ 252.145605][ C1] should_fail_ex+0x3bf/0x510 [ 252.150361][ C1] __should_failslab+0xac/0xf0 [ 252.155141][ C1] should_failslab+0x9/0x20 [ 252.159723][ C1] kmem_cache_alloc_node+0x42/0x330 [ 252.165446][ C1] ? __alloc_skb+0xe8/0x4a0 [ 252.169942][ C1] __alloc_skb+0xe8/0x4a0 [ 252.174258][ C1] netlink_sendmsg+0x635/0xbd0 [ 252.179046][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 252.184332][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 252.189805][ C1] __sys_sendto+0x4ac/0x660 [ 252.194352][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 252.199420][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 252.205499][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 252.211134][ C1] ? xfd_validate_state+0x70/0x150 [ 252.216248][ C1] ? __kasan_check_write+0x14/0x20 [ 252.221352][ C1] __x64_sys_sendto+0xe5/0x100 [ 252.226116][ C1] x64_sys_call+0x83/0x9a0 [ 252.230612][ C1] do_syscall_64+0x4c/0xa0 [ 252.235028][ C1] ? clear_bhb_loop+0x30/0x80 [ 252.239694][ C1] ? clear_bhb_loop+0x30/0x80 [ 252.244361][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 252.250281][ C1] RIP: 0033:0x7f1702959017 [ 252.254833][ C1] 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 [ 252.274631][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 252.283069][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 252.291046][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 252.299044][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 252.307029][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 252.315002][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 252.323056][ C1] [ 252.326158][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 252.326296][ C1] FAULT_INJECTION: forcing a failure. [ 252.326296][ C1] name failslab, interval 1, probability 100, space 0, times 9 [ 252.333620][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 252.333644][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 252.333670][ C0] Call Trace: [ 252.333678][ C0] [ 252.368645][ C0] __dump_stack+0x21/0x24 [ 252.372983][ C0] dump_stack_lvl+0x110/0x170 [ 252.377656][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 252.382684][ C0] ? calc_wheel_index+0x230/0x8d0 [ 252.387743][ C0] ? timer_update_keys+0xb0/0xb0 [ 252.392781][ C0] dump_stack+0x15/0x24 [ 252.397000][ C0] should_fail_ex+0x3bf/0x510 [ 252.401685][ C0] __should_failslab+0xac/0xf0 [ 252.406456][ C0] should_failslab+0x9/0x20 [ 252.410951][ C0] kmem_cache_alloc_node+0x42/0x330 [ 252.416151][ C0] ? __alloc_skb+0xe8/0x4a0 [ 252.420732][ C0] __alloc_skb+0xe8/0x4a0 [ 252.425056][ C0] ndisc_send_rs+0x31d/0x870 [ 252.429635][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 252.434572][ C0] addrconf_rs_timer+0x35a/0x600 [ 252.439817][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 252.445471][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 252.450563][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 252.456133][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 252.461676][ C0] call_timer_fn+0x46/0x2a0 [ 252.466271][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 252.471722][ C0] __run_timers+0x646/0x9b0 [ 252.476235][ C0] ? calc_index+0x200/0x200 [ 252.480819][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 252.486106][ C0] run_timer_softirq+0x6a/0xf0 [ 252.490878][ C0] handle_softirqs+0x1d7/0x600 [ 252.496177][ C0] __irq_exit_rcu+0x52/0xf0 [ 252.500701][ C0] irq_exit_rcu+0x9/0x10 [ 252.504949][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 252.510582][ C0] [ 252.513497][ C0] [ 252.516413][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 252.522395][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 252.527855][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 252.548143][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 252.554389][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 252.562375][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 252.570347][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 252.578407][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 252.586397][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 252.594390][ C0] ? dump_stack_lvl+0x13b/0x170 [ 252.599280][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 252.604302][ C0] ? __kasan_check_write+0x14/0x20 [ 252.609407][ C0] dump_stack+0x15/0x24 [ 252.613558][ C0] should_fail_ex+0x3bf/0x510 [ 252.618312][ C0] __should_failslab+0xac/0xf0 [ 252.623075][ C0] should_failslab+0x9/0x20 [ 252.627747][ C0] kmem_cache_alloc_node+0x42/0x330 [ 252.632943][ C0] ? __alloc_skb+0xe8/0x4a0 [ 252.637440][ C0] __alloc_skb+0xe8/0x4a0 [ 252.641761][ C0] ndisc_send_rs+0x31d/0x870 [ 252.646433][ C0] addrconf_dad_completed+0x958/0xe80 [ 252.651825][ C0] ? addrconf_dad_stop+0x440/0x440 [ 252.656973][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 252.661995][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 252.667549][ C0] ? __kasan_check_write+0x14/0x20 [ 252.672669][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 252.678602][ C0] process_one_work+0x717/0xc30 [ 252.683922][ C0] worker_thread+0xa4d/0x11d0 [ 252.688941][ C0] kthread+0x281/0x320 [ 252.693111][ C0] ? __cfi_worker_thread+0x10/0x10 [ 252.698480][ C0] ? __cfi_kthread+0x10/0x10 [ 252.703114][ C0] ret_from_fork+0x1f/0x30 [ 252.707532][ C0] [ 252.710567][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 252.710611][ C0] FAULT_INJECTION: forcing a failure. [ 252.710611][ C0] name failslab, interval 1, probability 100, space 0, times 8 [ 252.718018][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 252.740878][ C1] Call Trace: [ 252.744322][ C1] [ 252.747156][ C1] __dump_stack+0x21/0x24 [ 252.752110][ C1] dump_stack_lvl+0x110/0x170 [ 252.756900][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 252.762013][ C1] ? calc_wheel_index+0x1b5/0x8d0 [ 252.767055][ C1] ? timer_update_keys+0xb0/0xb0 [ 252.772285][ C1] dump_stack+0x15/0x24 [ 252.776488][ C1] should_fail_ex+0x3bf/0x510 [ 252.781200][ C1] __should_failslab+0xac/0xf0 [ 252.786063][ C1] should_failslab+0x9/0x20 [ 252.790662][ C1] kmem_cache_alloc_node+0x42/0x330 [ 252.796071][ C1] ? __alloc_skb+0xe8/0x4a0 [ 252.800589][ C1] __alloc_skb+0xe8/0x4a0 [ 252.804939][ C1] ndisc_send_rs+0x31d/0x870 [ 252.809558][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 252.814509][ C1] addrconf_rs_timer+0x35a/0x600 [ 252.819441][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 252.824898][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 252.829922][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 252.835579][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 252.841149][ C1] call_timer_fn+0x46/0x2a0 [ 252.845760][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 252.851229][ C1] __run_timers+0x646/0x9b0 [ 252.855751][ C1] ? calc_index+0x200/0x200 [ 252.860274][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 252.865589][ C1] run_timer_softirq+0x6a/0xf0 [ 252.870373][ C1] handle_softirqs+0x1d7/0x600 [ 252.875152][ C1] __irq_exit_rcu+0x52/0xf0 [ 252.879646][ C1] irq_exit_rcu+0x9/0x10 [ 252.883881][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 252.889514][ C1] [ 252.892543][ C1] [ 252.895475][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 252.901484][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 252.907390][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 252.927074][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 252.933143][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 252.941112][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 252.949085][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 252.957332][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 252.965424][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 252.973698][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 252.979129][ C1] dump_stack_lvl+0xce/0x170 [ 252.984026][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 252.989090][ C1] ? preempt_schedule_irq+0xca/0x120 [ 252.994395][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 253.000232][ C1] dump_stack+0x15/0x24 [ 253.004412][ C1] should_fail_ex+0x3bf/0x510 [ 253.009112][ C1] __should_failslab+0xac/0xf0 [ 253.013884][ C1] should_failslab+0x9/0x20 [ 253.018559][ C1] kmem_cache_alloc_node+0x42/0x330 [ 253.023847][ C1] ? __alloc_skb+0xe8/0x4a0 [ 253.028378][ C1] __alloc_skb+0xe8/0x4a0 [ 253.032705][ C1] netlink_sendmsg+0x635/0xbd0 [ 253.037469][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 253.042748][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 253.048234][ C1] __sys_sendto+0x4ac/0x660 [ 253.052961][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 253.058192][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 253.064557][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 253.070242][ C1] ? xfd_validate_state+0x70/0x150 [ 253.075369][ C1] ? __kasan_check_write+0x14/0x20 [ 253.080618][ C1] __x64_sys_sendto+0xe5/0x100 [ 253.086822][ C1] x64_sys_call+0x83/0x9a0 [ 253.091242][ C1] do_syscall_64+0x4c/0xa0 [ 253.095682][ C1] ? clear_bhb_loop+0x30/0x80 [ 253.100355][ C1] ? clear_bhb_loop+0x30/0x80 [ 253.105083][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 253.110977][ C1] RIP: 0033:0x7f1702959017 [ 253.115398][ C1] 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 [ 253.135035][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 253.143478][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 253.151466][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 253.159644][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 253.167891][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 253.176238][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 253.184302][ C1] [ 253.187330][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 253.187391][ C1] FAULT_INJECTION: forcing a failure. [ 253.187391][ C1] name failslab, interval 1, probability 100, space 0, times 7 [ 253.194705][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 253.194720][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 253.223638][ C0] Call Trace: [ 253.226909][ C0] [ 253.229763][ C0] __dump_stack+0x21/0x24 [ 253.234097][ C0] dump_stack_lvl+0x110/0x170 [ 253.238768][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 253.243873][ C0] ? calc_wheel_index+0x230/0x8d0 [ 253.248899][ C0] ? timer_update_keys+0xb0/0xb0 [ 253.253835][ C0] dump_stack+0x15/0x24 [ 253.257982][ C0] should_fail_ex+0x3bf/0x510 [ 253.262656][ C0] __should_failslab+0xac/0xf0 [ 253.267588][ C0] should_failslab+0x9/0x20 [ 253.272188][ C0] kmem_cache_alloc_node+0x42/0x330 [ 253.277579][ C0] ? __alloc_skb+0xe8/0x4a0 [ 253.282074][ C0] __alloc_skb+0xe8/0x4a0 [ 253.286390][ C0] ndisc_send_rs+0x31d/0x870 [ 253.290972][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 253.295934][ C0] addrconf_rs_timer+0x35a/0x600 [ 253.300867][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 253.306332][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 253.311364][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 253.316998][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 253.322536][ C0] call_timer_fn+0x46/0x2a0 [ 253.327121][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 253.332570][ C0] __run_timers+0x646/0x9b0 [ 253.337071][ C0] ? calc_index+0x200/0x200 [ 253.341657][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 253.346855][ C0] run_timer_softirq+0x6a/0xf0 [ 253.351700][ C0] handle_softirqs+0x1d7/0x600 [ 253.356464][ C0] __irq_exit_rcu+0x52/0xf0 [ 253.360958][ C0] irq_exit_rcu+0x9/0x10 [ 253.365229][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 253.370866][ C0] [ 253.373786][ C0] [ 253.376716][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 253.382704][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 253.388158][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 253.407843][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 253.413906][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 253.421890][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 253.429941][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 253.437905][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 253.445962][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 253.453925][ C0] ? dump_stack_lvl+0x13b/0x170 [ 253.458782][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 253.463823][ C0] ? __kasan_check_write+0x14/0x20 [ 253.469018][ C0] dump_stack+0x15/0x24 [ 253.473211][ C0] should_fail_ex+0x3bf/0x510 [ 253.478053][ C0] __should_failslab+0xac/0xf0 [ 253.482899][ C0] should_failslab+0x9/0x20 [ 253.487396][ C0] kmem_cache_alloc_node+0x42/0x330 [ 253.492633][ C0] ? __alloc_skb+0xe8/0x4a0 [ 253.497168][ C0] __alloc_skb+0xe8/0x4a0 [ 253.501518][ C0] ndisc_send_rs+0x31d/0x870 [ 253.506306][ C0] addrconf_dad_completed+0x958/0xe80 [ 253.511761][ C0] ? addrconf_dad_stop+0x440/0x440 [ 253.517042][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 253.522232][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 253.528313][ C0] ? __kasan_check_write+0x14/0x20 [ 253.533554][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 253.539492][ C0] process_one_work+0x717/0xc30 [ 253.544350][ C0] worker_thread+0xa4d/0x11d0 [ 253.549041][ C0] kthread+0x281/0x320 [ 253.553143][ C0] ? __cfi_worker_thread+0x10/0x10 [ 253.558278][ C0] ? __cfi_kthread+0x10/0x10 [ 253.562884][ C0] ret_from_fork+0x1f/0x30 [ 253.567318][ C0] [ 253.570428][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 253.570475][ C0] FAULT_INJECTION: forcing a failure. [ 253.570475][ C0] name failslab, interval 1, probability 100, space 0, times 6 [ 253.577985][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 253.601020][ C1] Call Trace: [ 253.604302][ C1] [ 253.607151][ C1] __dump_stack+0x21/0x24 [ 253.611476][ C1] dump_stack_lvl+0x110/0x170 [ 253.616184][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 253.621288][ C1] ? calc_wheel_index+0x230/0x8d0 [ 253.626312][ C1] ? timer_update_keys+0xb0/0xb0 [ 253.631335][ C1] dump_stack+0x15/0x24 [ 253.635483][ C1] should_fail_ex+0x3bf/0x510 [ 253.640248][ C1] __should_failslab+0xac/0xf0 [ 253.645103][ C1] should_failslab+0x9/0x20 [ 253.649711][ C1] kmem_cache_alloc_node+0x42/0x330 [ 253.654905][ C1] ? __alloc_skb+0xe8/0x4a0 [ 253.659405][ C1] __alloc_skb+0xe8/0x4a0 [ 253.663732][ C1] ndisc_send_rs+0x31d/0x870 [ 253.668489][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 253.673530][ C1] addrconf_rs_timer+0x35a/0x600 [ 253.678459][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 253.683909][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 253.688949][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 253.694521][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 253.700521][ C1] call_timer_fn+0x46/0x2a0 [ 253.705115][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 253.710573][ C1] __run_timers+0x646/0x9b0 [ 253.715072][ C1] ? calc_index+0x200/0x200 [ 253.719585][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 253.724878][ C1] run_timer_softirq+0x6a/0xf0 [ 253.729740][ C1] handle_softirqs+0x1d7/0x600 [ 253.734585][ C1] __irq_exit_rcu+0x52/0xf0 [ 253.739087][ C1] irq_exit_rcu+0x9/0x10 [ 253.743323][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 253.748956][ C1] [ 253.751883][ C1] [ 253.754975][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 253.760959][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 253.766945][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 253.786894][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 253.792980][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 253.800971][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 253.809059][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 253.817028][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 253.825004][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 253.832990][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 253.838366][ C1] dump_stack_lvl+0xce/0x170 [ 253.842954][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 253.847987][ C1] ? preempt_schedule_irq+0xca/0x120 [ 253.853359][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 253.859276][ C1] dump_stack+0x15/0x24 [ 253.863555][ C1] should_fail_ex+0x3bf/0x510 [ 253.868317][ C1] __should_failslab+0xac/0xf0 [ 253.873173][ C1] should_failslab+0x9/0x20 [ 253.877668][ C1] kmem_cache_alloc_node+0x42/0x330 [ 253.882868][ C1] ? __alloc_skb+0xe8/0x4a0 [ 253.887367][ C1] __alloc_skb+0xe8/0x4a0 [ 253.891688][ C1] netlink_sendmsg+0x635/0xbd0 [ 253.896453][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 253.901727][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 253.907178][ C1] __sys_sendto+0x4ac/0x660 [ 253.911761][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 253.916782][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 253.922858][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 253.928492][ C1] ? xfd_validate_state+0x70/0x150 [ 253.933708][ C1] ? __kasan_check_write+0x14/0x20 [ 253.938819][ C1] __x64_sys_sendto+0xe5/0x100 [ 253.943595][ C1] x64_sys_call+0x83/0x9a0 [ 253.948028][ C1] do_syscall_64+0x4c/0xa0 [ 253.952447][ C1] ? clear_bhb_loop+0x30/0x80 [ 253.957122][ C1] ? clear_bhb_loop+0x30/0x80 [ 253.961969][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 253.967887][ C1] RIP: 0033:0x7f1702959017 [ 253.972300][ C1] 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 [ 253.991900][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 254.000312][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 254.008273][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 254.016234][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 254.024196][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 254.032173][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 254.040141][ C1] [ 254.043152][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 254.043186][ C1] FAULT_INJECTION: forcing a failure. [ 254.043186][ C1] name failslab, interval 1, probability 100, space 0, times 5 [ 254.050520][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 254.050534][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 254.079533][ C0] Call Trace: [ 254.082800][ C0] [ 254.085633][ C0] __dump_stack+0x21/0x24 [ 254.089964][ C0] dump_stack_lvl+0x110/0x170 [ 254.094897][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 254.099936][ C0] ? calc_wheel_index+0x230/0x8d0 [ 254.104980][ C0] ? timer_update_keys+0xb0/0xb0 [ 254.109930][ C0] dump_stack+0x15/0x24 [ 254.114077][ C0] should_fail_ex+0x3bf/0x510 [ 254.118742][ C0] __should_failslab+0xac/0xf0 [ 254.123501][ C0] should_failslab+0x9/0x20 [ 254.128002][ C0] kmem_cache_alloc_node+0x42/0x330 [ 254.133279][ C0] ? __alloc_skb+0xe8/0x4a0 [ 254.137904][ C0] __alloc_skb+0xe8/0x4a0 [ 254.142398][ C0] ndisc_send_rs+0x31d/0x870 [ 254.147387][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 254.152677][ C0] addrconf_rs_timer+0x35a/0x600 [ 254.158046][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 254.163687][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 254.168713][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 254.174251][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 254.179717][ C0] call_timer_fn+0x46/0x2a0 [ 254.184391][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 254.189850][ C0] __run_timers+0x646/0x9b0 [ 254.194528][ C0] ? calc_index+0x200/0x200 [ 254.199028][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 254.204231][ C0] run_timer_softirq+0x6a/0xf0 [ 254.209044][ C0] handle_softirqs+0x1d7/0x600 [ 254.213847][ C0] __irq_exit_rcu+0x52/0xf0 [ 254.218341][ C0] irq_exit_rcu+0x9/0x10 [ 254.222571][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 254.228293][ C0] [ 254.231213][ C0] [ 254.234131][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 254.240135][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 254.245606][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 254.265645][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 254.271714][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 254.279765][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 254.287901][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 254.295869][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 254.303935][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 254.311904][ C0] ? dump_stack_lvl+0x13b/0x170 [ 254.316759][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 254.321863][ C0] ? __kasan_check_write+0x14/0x20 [ 254.326963][ C0] dump_stack+0x15/0x24 [ 254.331321][ C0] should_fail_ex+0x3bf/0x510 [ 254.336246][ C0] __should_failslab+0xac/0xf0 [ 254.341012][ C0] should_failslab+0x9/0x20 [ 254.345618][ C0] kmem_cache_alloc_node+0x42/0x330 [ 254.350824][ C0] ? __alloc_skb+0xe8/0x4a0 [ 254.355328][ C0] __alloc_skb+0xe8/0x4a0 [ 254.359650][ C0] ndisc_send_rs+0x31d/0x870 [ 254.364279][ C0] addrconf_dad_completed+0x958/0xe80 [ 254.369657][ C0] ? addrconf_dad_stop+0x440/0x440 [ 254.374848][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 254.379947][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 254.385479][ C0] ? __kasan_check_write+0x14/0x20 [ 254.390581][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 254.396465][ C0] process_one_work+0x717/0xc30 [ 254.401511][ C0] worker_thread+0xa4d/0x11d0 [ 254.406194][ C0] kthread+0x281/0x320 [ 254.410265][ C0] ? __cfi_worker_thread+0x10/0x10 [ 254.415375][ C0] ? __cfi_kthread+0x10/0x10 [ 254.419960][ C0] ret_from_fork+0x1f/0x30 [ 254.424372][ C0] [ 254.427470][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 254.427504][ C0] FAULT_INJECTION: forcing a failure. [ 254.427504][ C0] name failslab, interval 1, probability 100, space 0, times 4 [ 254.434944][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 254.434956][ C1] Call Trace: [ 254.434962][ C1] [ 254.434968][ C1] __dump_stack+0x21/0x24 [ 254.468500][ C1] dump_stack_lvl+0x110/0x170 [ 254.473177][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 254.478369][ C1] ? calc_wheel_index+0x230/0x8d0 [ 254.483488][ C1] ? timer_update_keys+0xb0/0xb0 [ 254.488425][ C1] dump_stack+0x15/0x24 [ 254.492682][ C1] should_fail_ex+0x3bf/0x510 [ 254.497789][ C1] __should_failslab+0xac/0xf0 [ 254.502549][ C1] should_failslab+0x9/0x20 [ 254.507064][ C1] kmem_cache_alloc_node+0x42/0x330 [ 254.512345][ C1] ? __alloc_skb+0xe8/0x4a0 [ 254.516929][ C1] __alloc_skb+0xe8/0x4a0 [ 254.521249][ C1] ndisc_send_rs+0x31d/0x870 [ 254.526090][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 254.531130][ C1] addrconf_rs_timer+0x35a/0x600 [ 254.536069][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 254.541537][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 254.546557][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 254.552358][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 254.557903][ C1] call_timer_fn+0x46/0x2a0 [ 254.562582][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 254.568158][ C1] __run_timers+0x646/0x9b0 [ 254.573013][ C1] ? calc_index+0x200/0x200 [ 254.577516][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 254.582920][ C1] run_timer_softirq+0x6a/0xf0 [ 254.587678][ C1] handle_softirqs+0x1d7/0x600 [ 254.592521][ C1] __irq_exit_rcu+0x52/0xf0 [ 254.597037][ C1] irq_exit_rcu+0x9/0x10 [ 254.601294][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 254.606929][ C1] [ 254.609854][ C1] [ 254.612772][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 254.618750][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 254.624641][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 254.644875][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 254.651055][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 254.659127][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 254.667184][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 254.675233][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 254.683499][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 254.691989][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 254.697401][ C1] dump_stack_lvl+0xce/0x170 [ 254.702003][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 254.707128][ C1] ? preempt_schedule_irq+0xca/0x120 [ 254.713306][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 254.719041][ C1] dump_stack+0x15/0x24 [ 254.723562][ C1] should_fail_ex+0x3bf/0x510 [ 254.728372][ C1] __should_failslab+0xac/0xf0 [ 254.733409][ C1] should_failslab+0x9/0x20 [ 254.737931][ C1] kmem_cache_alloc_node+0x42/0x330 [ 254.743259][ C1] ? __alloc_skb+0xe8/0x4a0 [ 254.747782][ C1] __alloc_skb+0xe8/0x4a0 [ 254.752140][ C1] netlink_sendmsg+0x635/0xbd0 [ 254.756966][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 254.762272][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 254.767934][ C1] __sys_sendto+0x4ac/0x660 [ 254.772526][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 254.777548][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 254.783621][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 254.789162][ C1] ? xfd_validate_state+0x70/0x150 [ 254.794268][ C1] ? __kasan_check_write+0x14/0x20 [ 254.799374][ C1] __x64_sys_sendto+0xe5/0x100 [ 254.804134][ C1] x64_sys_call+0x83/0x9a0 [ 254.808542][ C1] do_syscall_64+0x4c/0xa0 [ 254.813053][ C1] ? clear_bhb_loop+0x30/0x80 [ 254.817747][ C1] ? clear_bhb_loop+0x30/0x80 [ 254.822421][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 254.828400][ C1] RIP: 0033:0x7f1702959017 [ 254.832803][ C1] 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 [ 254.852502][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 254.860917][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 254.869091][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 254.877074][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 254.885052][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 254.893019][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 254.901177][ C1] [ 254.904196][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 254.904233][ C1] FAULT_INJECTION: forcing a failure. [ 254.904233][ C1] name failslab, interval 1, probability 100, space 0, times 3 [ 254.911741][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 254.911757][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 254.941279][ C0] Call Trace: [ 254.944552][ C0] [ 254.947386][ C0] __dump_stack+0x21/0x24 [ 254.951717][ C0] dump_stack_lvl+0x110/0x170 [ 254.956484][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 254.961539][ C0] ? calc_wheel_index+0x230/0x8d0 [ 254.966650][ C0] ? timer_update_keys+0xb0/0xb0 [ 254.971602][ C0] dump_stack+0x15/0x24 [ 254.976299][ C0] should_fail_ex+0x3bf/0x510 [ 254.980990][ C0] __should_failslab+0xac/0xf0 [ 254.985778][ C0] should_failslab+0x9/0x20 [ 254.990281][ C0] kmem_cache_alloc_node+0x42/0x330 [ 254.995489][ C0] ? __alloc_skb+0xe8/0x4a0 [ 254.999991][ C0] __alloc_skb+0xe8/0x4a0 [ 255.004312][ C0] ndisc_send_rs+0x31d/0x870 [ 255.008897][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 255.013855][ C0] addrconf_rs_timer+0x35a/0x600 [ 255.018781][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.024316][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 255.029508][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 255.035050][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.040504][ C0] call_timer_fn+0x46/0x2a0 [ 255.045015][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.050552][ C0] __run_timers+0x646/0x9b0 [ 255.055056][ C0] ? calc_index+0x200/0x200 [ 255.059555][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 255.064870][ C0] run_timer_softirq+0x6a/0xf0 [ 255.069738][ C0] handle_softirqs+0x1d7/0x600 [ 255.074670][ C0] __irq_exit_rcu+0x52/0xf0 [ 255.079163][ C0] irq_exit_rcu+0x9/0x10 [ 255.083482][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 255.089381][ C0] [ 255.092301][ C0] [ 255.095415][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 255.101433][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 255.106943][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 255.126751][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 255.132906][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 255.140871][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 255.148855][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 255.157275][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 255.165349][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 255.173683][ C0] ? dump_stack_lvl+0x13b/0x170 [ 255.178541][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 255.183857][ C0] ? __kasan_check_write+0x14/0x20 [ 255.188982][ C0] dump_stack+0x15/0x24 [ 255.193415][ C0] should_fail_ex+0x3bf/0x510 [ 255.198086][ C0] __should_failslab+0xac/0xf0 [ 255.202848][ C0] should_failslab+0x9/0x20 [ 255.207346][ C0] kmem_cache_alloc_node+0x42/0x330 [ 255.212629][ C0] ? __alloc_skb+0xe8/0x4a0 [ 255.217129][ C0] __alloc_skb+0xe8/0x4a0 [ 255.221544][ C0] ndisc_send_rs+0x31d/0x870 [ 255.226132][ C0] addrconf_dad_completed+0x958/0xe80 [ 255.231495][ C0] ? addrconf_dad_stop+0x440/0x440 [ 255.236597][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 255.241609][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 255.247057][ C0] ? __kasan_check_write+0x14/0x20 [ 255.252160][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 255.258137][ C0] process_one_work+0x717/0xc30 [ 255.262990][ C0] worker_thread+0xa4d/0x11d0 [ 255.267659][ C0] kthread+0x281/0x320 [ 255.271803][ C0] ? __cfi_worker_thread+0x10/0x10 [ 255.277100][ C0] ? __cfi_kthread+0x10/0x10 [ 255.281683][ C0] ret_from_fork+0x1f/0x30 [ 255.286096][ C0] [ 255.289106][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 255.289139][ C0] FAULT_INJECTION: forcing a failure. [ 255.289139][ C0] name failslab, interval 1, probability 100, space 0, times 2 [ 255.296645][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 255.296656][ C1] Call Trace: [ 255.296664][ C1] [ 255.296670][ C1] __dump_stack+0x21/0x24 [ 255.329928][ C1] dump_stack_lvl+0x110/0x170 [ 255.334603][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 255.339796][ C1] ? calc_wheel_index+0x230/0x8d0 [ 255.344848][ C1] ? timer_update_keys+0xb0/0xb0 [ 255.350137][ C1] dump_stack+0x15/0x24 [ 255.354557][ C1] should_fail_ex+0x3bf/0x510 [ 255.359345][ C1] __should_failslab+0xac/0xf0 [ 255.364127][ C1] should_failslab+0x9/0x20 [ 255.368625][ C1] kmem_cache_alloc_node+0x42/0x330 [ 255.373993][ C1] ? __alloc_skb+0xe8/0x4a0 [ 255.378489][ C1] __alloc_skb+0xe8/0x4a0 [ 255.382845][ C1] ndisc_send_rs+0x31d/0x870 [ 255.387516][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 255.392451][ C1] addrconf_rs_timer+0x35a/0x600 [ 255.397411][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.402860][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.408320][ C1] call_timer_fn+0x46/0x2a0 [ 255.412906][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.418359][ C1] __run_timers+0x646/0x9b0 [ 255.423043][ C1] ? calc_index+0x200/0x200 [ 255.427547][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 255.432828][ C1] run_timer_softirq+0x6a/0xf0 [ 255.437586][ C1] handle_softirqs+0x1d7/0x600 [ 255.442339][ C1] __irq_exit_rcu+0x52/0xf0 [ 255.446831][ C1] irq_exit_rcu+0x9/0x10 [ 255.451069][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 255.456715][ C1] [ 255.459806][ C1] [ 255.462728][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 255.468824][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 255.474728][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 255.494439][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 255.500597][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 255.508646][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 255.516711][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 255.524672][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 255.532727][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 255.540688][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 255.546061][ C1] dump_stack_lvl+0xce/0x170 [ 255.550645][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 255.555662][ C1] ? preempt_schedule_irq+0xca/0x120 [ 255.560940][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 255.566662][ C1] dump_stack+0x15/0x24 [ 255.570834][ C1] should_fail_ex+0x3bf/0x510 [ 255.575509][ C1] __should_failslab+0xac/0xf0 [ 255.580281][ C1] should_failslab+0x9/0x20 [ 255.584810][ C1] kmem_cache_alloc_node+0x42/0x330 [ 255.590110][ C1] ? __alloc_skb+0xe8/0x4a0 [ 255.594604][ C1] __alloc_skb+0xe8/0x4a0 [ 255.598926][ C1] netlink_sendmsg+0x635/0xbd0 [ 255.603683][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 255.608974][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 255.614470][ C1] __sys_sendto+0x4ac/0x660 [ 255.618968][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 255.624085][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 255.630256][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 255.635899][ C1] ? xfd_validate_state+0x70/0x150 [ 255.641470][ C1] ? __kasan_check_write+0x14/0x20 [ 255.646577][ C1] __x64_sys_sendto+0xe5/0x100 [ 255.651526][ C1] x64_sys_call+0x83/0x9a0 [ 255.655943][ C1] do_syscall_64+0x4c/0xa0 [ 255.660377][ C1] ? clear_bhb_loop+0x30/0x80 [ 255.665213][ C1] ? clear_bhb_loop+0x30/0x80 [ 255.670053][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 255.675969][ C1] RIP: 0033:0x7f1702959017 [ 255.680658][ C1] 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 [ 255.700791][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 255.709208][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 255.717185][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 255.725339][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 255.733308][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 255.741446][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 255.749414][ C1] [ 255.752426][ C0] CPU: 0 PID: 371 Comm: kworker/0:3 Not tainted syzkaller #0 [ 255.752453][ C1] FAULT_INJECTION: forcing a failure. [ 255.752453][ C1] name failslab, interval 1, probability 100, space 0, times 1 [ 255.759798][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 255.759812][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 255.788628][ C0] Call Trace: [ 255.792071][ C0] [ 255.794902][ C0] __dump_stack+0x21/0x24 [ 255.799249][ C0] dump_stack_lvl+0x110/0x170 [ 255.804043][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 255.809065][ C0] ? calc_wheel_index+0x230/0x8d0 [ 255.814188][ C0] ? timer_update_keys+0xb0/0xb0 [ 255.819143][ C0] dump_stack+0x15/0x24 [ 255.823295][ C0] should_fail_ex+0x3bf/0x510 [ 255.828069][ C0] __should_failslab+0xac/0xf0 [ 255.832833][ C0] should_failslab+0x9/0x20 [ 255.837325][ C0] kmem_cache_alloc_node+0x42/0x330 [ 255.842692][ C0] ? __alloc_skb+0xe8/0x4a0 [ 255.847190][ C0] __alloc_skb+0xe8/0x4a0 [ 255.851517][ C0] ndisc_send_rs+0x31d/0x870 [ 255.856115][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 255.861055][ C0] addrconf_rs_timer+0x35a/0x600 [ 255.865991][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.871446][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 255.876474][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 255.882025][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.887493][ C0] call_timer_fn+0x46/0x2a0 [ 255.892011][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 255.897503][ C0] __run_timers+0x646/0x9b0 [ 255.902096][ C0] ? calc_index+0x200/0x200 [ 255.906640][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 255.912112][ C0] run_timer_softirq+0x6a/0xf0 [ 255.916881][ C0] handle_softirqs+0x1d7/0x600 [ 255.921670][ C0] __irq_exit_rcu+0x52/0xf0 [ 255.926193][ C0] irq_exit_rcu+0x9/0x10 [ 255.930446][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 255.936091][ C0] [ 255.939014][ C0] [ 255.942039][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 255.948116][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 255.953853][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 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 [ 255.973726][ C0] RSP: 0018:ffffc900017478a0 EFLAGS: 00000293 [ 255.980092][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888112906540 [ 255.988142][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 255.996122][ C0] RBP: ffffc90001747930 R08: 0000000000000003 R09: 0000000000000004 [ 256.004096][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 256.012084][ C0] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920002e8f14 [ 256.020165][ C0] ? dump_stack_lvl+0x13b/0x170 [ 256.025026][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 256.030129][ C0] ? __kasan_check_write+0x14/0x20 [ 256.035338][ C0] dump_stack+0x15/0x24 [ 256.039665][ C0] should_fail_ex+0x3bf/0x510 [ 256.044448][ C0] __should_failslab+0xac/0xf0 [ 256.049367][ C0] should_failslab+0x9/0x20 [ 256.053973][ C0] kmem_cache_alloc_node+0x42/0x330 [ 256.059262][ C0] ? __alloc_skb+0xe8/0x4a0 [ 256.063756][ C0] __alloc_skb+0xe8/0x4a0 [ 256.068077][ C0] ndisc_send_rs+0x31d/0x870 [ 256.073182][ C0] addrconf_dad_completed+0x958/0xe80 [ 256.078636][ C0] ? addrconf_dad_stop+0x440/0x440 [ 256.083910][ C0] addrconf_dad_work+0xc1b/0x14a0 [ 256.089387][ C0] ? __cfi_addrconf_dad_work+0x10/0x10 [ 256.095588][ C0] ? __kasan_check_write+0x14/0x20 [ 256.100723][ C0] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 256.106819][ C0] process_one_work+0x717/0xc30 [ 256.111787][ C0] worker_thread+0xa4d/0x11d0 [ 256.116501][ C0] kthread+0x281/0x320 [ 256.120583][ C0] ? __cfi_worker_thread+0x10/0x10 [ 256.125692][ C0] ? __cfi_kthread+0x10/0x10 [ 256.130476][ C0] ret_from_fork+0x1f/0x30 [ 256.135079][ C0] [ 256.138104][ C1] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 256.145747][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 256.156330][ C1] Call Trace: [ 256.159635][ C1] [ 256.162490][ C1] __dump_stack+0x21/0x24 [ 256.166830][ C1] dump_stack_lvl+0x110/0x170 [ 256.171493][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 256.176617][ C1] ? calc_wheel_index+0x1b5/0x8d0 [ 256.181639][ C1] ? timer_update_keys+0xb0/0xb0 [ 256.186858][ C1] dump_stack+0x15/0x24 [ 256.191041][ C1] should_fail_ex+0x3bf/0x510 [ 256.195876][ C1] __should_failslab+0xac/0xf0 [ 256.200629][ C1] should_failslab+0x9/0x20 [ 256.205119][ C1] kmem_cache_alloc_node+0x42/0x330 [ 256.210311][ C1] ? __alloc_skb+0xe8/0x4a0 [ 256.214988][ C1] __alloc_skb+0xe8/0x4a0 [ 256.219301][ C1] ndisc_send_rs+0x31d/0x870 [ 256.223882][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 256.228815][ C1] addrconf_rs_timer+0x35a/0x600 [ 256.233742][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 256.239191][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 256.244208][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 256.249927][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 256.255384][ C1] call_timer_fn+0x46/0x2a0 [ 256.259881][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 256.265354][ C1] __run_timers+0x646/0x9b0 [ 256.269862][ C1] ? calc_index+0x200/0x200 [ 256.274441][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 256.279628][ C1] run_timer_softirq+0x6a/0xf0 [ 256.284552][ C1] handle_softirqs+0x1d7/0x600 [ 256.289300][ C1] __irq_exit_rcu+0x52/0xf0 [ 256.293786][ C1] irq_exit_rcu+0x9/0x10 [ 256.298101][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 256.303727][ C1] [ 256.306728][ C1] [ 256.309641][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 256.315904][ C1] RIP: 0010:__printk_cpu_sync_wait+0xb/0x40 [ 256.321786][ C1] Code: 1d 5f 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 e8 17 92 19 00 f3 90 <48> c7 c7 c0 b9 11 87 be 04 00 00 00 e8 24 1f 5f 00 8b 05 7e e5 b9 [ 256.341376][ C1] RSP: 0018:ffffc90002787990 EFLAGS: 00000293 [ 256.347552][ C1] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811418d100 [ 256.355524][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 256.363480][ C1] RBP: ffffc90002787990 R08: 0000000000000003 R09: 0000000000000004 [ 256.371444][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 256.379504][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920004f0f34 [ 256.387548][ C1] ? __printk_cpu_sync_wait+0x2c/0x40 [ 256.392924][ C1] dump_stack_lvl+0xce/0x170 [ 256.397518][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 256.402525][ C1] ? preempt_schedule_irq+0xca/0x120 [ 256.407802][ C1] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 256.413515][ C1] dump_stack+0x15/0x24 [ 256.417655][ C1] should_fail_ex+0x3bf/0x510 [ 256.422747][ C1] __should_failslab+0xac/0xf0 [ 256.427779][ C1] should_failslab+0x9/0x20 [ 256.432505][ C1] kmem_cache_alloc_node+0x42/0x330 [ 256.437713][ C1] ? __alloc_skb+0xe8/0x4a0 [ 256.442251][ C1] __alloc_skb+0xe8/0x4a0 [ 256.446580][ C1] netlink_sendmsg+0x635/0xbd0 [ 256.451854][ C1] ? __cfi_netlink_sendmsg+0x10/0x10 [ 256.457223][ C1] ? security_socket_sendmsg+0x93/0xb0 [ 256.462678][ C1] __sys_sendto+0x4ac/0x660 [ 256.467169][ C1] ? __cfi___sys_sendto+0x10/0x10 [ 256.472382][ C1] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 256.478451][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 256.483981][ C1] ? xfd_validate_state+0x70/0x150 [ 256.489081][ C1] ? __kasan_check_write+0x14/0x20 [ 256.494527][ C1] __x64_sys_sendto+0xe5/0x100 [ 256.499491][ C1] x64_sys_call+0x83/0x9a0 [ 256.503897][ C1] do_syscall_64+0x4c/0xa0 [ 256.508314][ C1] ? clear_bhb_loop+0x30/0x80 [ 256.512974][ C1] ? clear_bhb_loop+0x30/0x80 [ 256.517773][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 256.523683][ C1] RIP: 0033:0x7f1702959017 [ 256.528097][ C1] 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 [ 256.547698][ C1] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 256.556284][ C1] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 256.564346][ C1] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 256.572478][ C1] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 256.580531][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 256.588675][ C1] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 256.596656][ C1] [ 256.601529][ T408] CPU: 0 PID: 408 Comm: syz.5.19 Not tainted syzkaller #0 [ 256.609115][ T408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 256.619437][ T408] Call Trace: [ 256.622703][ T408] [ 256.625626][ T408] __dump_stack+0x21/0x24 [ 256.630489][ T408] dump_stack_lvl+0x110/0x170 [ 256.635151][ T408] ? __cfi_dump_stack_lvl+0x8/0x8 [ 256.640249][ T408] ? __cfi_do_futex+0x10/0x10 [ 256.645259][ T408] dump_stack+0x15/0x24 [ 256.649589][ T408] should_fail_ex+0x3bf/0x510 [ 256.654370][ T408] ? getname_flags+0xba/0x510 [ 256.659125][ T408] __should_failslab+0xac/0xf0 [ 256.663885][ T408] should_failslab+0x9/0x20 [ 256.668614][ T408] kmem_cache_alloc+0x3b/0x320 [ 256.673559][ T408] getname_flags+0xba/0x510 [ 256.678080][ T408] __x64_sys_mkdirat+0x7c/0xa0 [ 256.683146][ T408] x64_sys_call+0x73d/0x9a0 [ 256.687662][ T408] do_syscall_64+0x4c/0xa0 [ 256.692073][ T408] ? clear_bhb_loop+0x30/0x80 [ 256.696739][ T408] ? clear_bhb_loop+0x30/0x80 [ 256.701783][ T408] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 256.708381][ T408] RIP: 0033:0x7fc87c39de99 [ 256.712812][ T408] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 256.733536][ T408] RSP: 002b:00007fc87d22d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 256.742037][ T408] RAX: ffffffffffffffda RBX: 00007fc87c625fa0 RCX: 00007fc87c39de99 [ 256.750094][ T408] RDX: 00000000000001ff RSI: 0000200000000100 RDI: ffffffffffffff9c [ 256.758049][ T408] RBP: 00007fc87c433eaf R08: 0000000000000000 R09: 0000000000000000 [ 256.766122][ T408] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 256.774371][ T408] R13: 00007fc87c626038 R14: 00007fc87c625fa0 R15: 00007ffdc62d02a8 [ 256.782350][ T408] [ 256.786500][ T410] CPU: 1 PID: 410 Comm: syz.1.18 Not tainted syzkaller #0 [ 256.793643][ T410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 256.803710][ T410] Call Trace: [ 256.806993][ T410] [ 256.810085][ T410] __dump_stack+0x21/0x24 [ 256.814516][ T410] dump_stack_lvl+0x110/0x170 [ 256.819310][ T410] ? __cfi_dump_stack_lvl+0x8/0x8 [ 256.824322][ T410] dump_stack+0x15/0x24 [ 256.828472][ T410] should_fail_ex+0x3bf/0x510 [ 256.833237][ T410] ? taskstats_exit+0x1f0/0xb10 [ 256.838167][ T410] __should_failslab+0xac/0xf0 [ 256.842919][ T410] should_failslab+0x9/0x20 [ 256.847496][ T410] kmem_cache_alloc+0x3b/0x320 [ 256.852258][ T410] taskstats_exit+0x1f0/0xb10 [ 256.857009][ T410] ? __cfi_down_read+0x10/0x10 [ 256.861764][ T410] ? acct_update_integrals+0x32b/0x370 [ 256.867307][ T410] ? __cfi_taskstats_exit+0x10/0x10 [ 256.872593][ T410] ? __kasan_check_write+0x14/0x20 [ 256.877777][ T410] do_exit+0x89e/0x2850 [ 256.881946][ T410] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 256.888021][ T410] ? __cfi_do_exit+0x10/0x10 [ 256.892618][ T410] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 256.898432][ T410] ? kick_process+0xee/0x160 [ 256.903198][ T410] ? zap_other_threads+0x2b7/0x2f0 [ 256.908325][ T410] do_group_exit+0x21b/0x2e0 [ 256.912902][ T410] __x64_sys_exit_group+0x3f/0x40 [ 256.917924][ T410] x64_sys_call+0x7b4/0x9a0 [ 256.922425][ T410] do_syscall_64+0x4c/0xa0 [ 256.926854][ T410] ? clear_bhb_loop+0x30/0x80 [ 256.931520][ T410] ? clear_bhb_loop+0x30/0x80 [ 256.936189][ T410] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 256.942069][ T410] RIP: 0033:0x7f049f79de99 [ 256.946467][ T410] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 256.966174][ T410] RSP: 002b:00007ffe19134848 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 256.974694][ T410] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f049f79de99 [ 256.982741][ T410] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 256.990714][ T410] RBP: 0000000000000003 R08: 0000000000000000 R09: 00007f049f9ea3e0 [ 256.998705][ T410] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 257.006689][ T410] R13: 00007f049f9ea3e0 R14: 0000000000000003 R15: 00007ffe19134900 [ 257.014750][ T410] [ 257.019483][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 257.028469][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 257.035503][ T409] CPU: 0 PID: 409 Comm: udevd Not tainted syzkaller #0 [ 257.036956][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 257.043385][ T409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 257.043401][ T409] Call Trace: [ 257.043408][ T409] [ 257.043415][ T409] __dump_stack+0x21/0x24 [ 257.051845][ T369] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 257.062793][ T409] dump_stack_lvl+0x110/0x170 [ 257.062830][ T409] ? __cfi_dump_stack_lvl+0x8/0x8 [ 257.090603][ T92] socket: no more sockets [ 257.093181][ T409] dump_stack+0x15/0x24 [ 257.101710][ T409] should_fail_ex+0x3bf/0x510 [ 257.106559][ T409] __should_failslab+0xac/0xf0 [ 257.111316][ T409] should_failslab+0x9/0x20 [ 257.115901][ T409] __kmem_cache_alloc_node+0x3d/0x2d0 [ 257.121350][ T409] ? do_signalfd4+0x14b/0x350 [ 257.126123][ T409] ? do_signalfd4+0x14b/0x350 [ 257.130976][ T409] kmalloc_trace+0x29/0xb0 [ 257.135481][ T409] do_signalfd4+0x14b/0x350 [ 257.139983][ T409] ? __kasan_check_write+0x14/0x20 [ 257.145085][ T409] __x64_sys_signalfd4+0x157/0x1a0 [ 257.150302][ T409] ? __cfi___x64_sys_signalfd4+0x10/0x10 [ 257.156108][ T409] ? fpregs_restore_userregs+0x128/0x260 [ 257.161743][ T409] ? switch_fpu_return+0xe/0x10 [ 257.166618][ T409] x64_sys_call+0x3d9/0x9a0 [ 257.171141][ T409] do_syscall_64+0x4c/0xa0 [ 257.175589][ T409] ? clear_bhb_loop+0x30/0x80 [ 257.180352][ T409] ? clear_bhb_loop+0x30/0x80 [ 257.185029][ T409] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 257.190948][ T409] RIP: 0033:0x7f232ad214ff [ 257.195372][ T409] Code: 00 00 00 00 00 48 83 c4 10 5b 5d 41 5c c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 89 d2 b8 21 01 00 00 ba 08 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 09 c3 0f 1f 84 00 00 00 00 00 48 8b 15 c1 f8 [ 257.215067][ T409] RSP: 002b:00007ffe5f195bc8 EFLAGS: 00000286 ORIG_RAX: 0000000000000121 [ 257.223596][ T409] RAX: ffffffffffffffda RBX: 0000558885451d80 RCX: 00007f232ad214ff [ 257.231649][ T409] RDX: 0000000000000008 RSI: 00007ffe5f195c40 RDI: 00000000ffffffff [ 257.239793][ T409] RBP: 00005588852022c0 R08: 0000000000000000 R09: 0000000000000000 [ 257.247772][ T409] R10: 0000000000080800 R11: 0000000000000286 R12: 0000558885452510 [ 257.255838][ T409] R13: 00007ffe5f195c40 R14: 0000000000000000 R15: 0000000000000000 [ 257.263814][ T409] [ 257.266920][ T406] CPU: 1 PID: 406 Comm: syz-executor Not tainted syzkaller #0 [ 257.274907][ T406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 257.285153][ T406] Call Trace: [ 257.285746][ T409] udevd[409]: error creating signalfd Cannot allocate memory [ 257.288447][ T406] [ 257.288455][ T406] __dump_stack+0x21/0x24 [ 257.296161][ T409] udevd[409]: Assertion 'close_nointr(fd) != -EBADF' failed at util.c:228, function safe_close(). Aborting. [ 257.298920][ T406] dump_stack_lvl+0x110/0x170 [ 257.319524][ T406] ? __cfi_dump_stack_lvl+0x8/0x8 [ 257.324545][ T406] ? preempt_schedule_irq+0xca/0x120 [ 257.329856][ T406] ? __cfi_preempt_schedule_irq+0x10/0x10 [ 257.335655][ T406] dump_stack+0x15/0x24 [ 257.339836][ T406] should_fail_ex+0x3bf/0x510 [ 257.344764][ T406] __should_failslab+0xac/0xf0 [ 257.349522][ T406] should_failslab+0x9/0x20 [ 257.354010][ T406] kmem_cache_alloc_node+0x42/0x330 [ 257.359203][ T406] ? __alloc_skb+0xe8/0x4a0 [ 257.363698][ T406] __alloc_skb+0xe8/0x4a0 [ 257.368018][ T406] netlink_sendmsg+0x635/0xbd0 [ 257.372953][ T406] ? __cfi_netlink_sendmsg+0x10/0x10 [ 257.378223][ T406] ? security_socket_sendmsg+0x93/0xb0 [ 257.383792][ T406] __sys_sendto+0x4ac/0x660 [ 257.388307][ T406] ? __cfi___sys_sendto+0x10/0x10 [ 257.393340][ T406] ? blkcg_maybe_throttle_current+0x1e0/0xa20 [ 257.399502][ T406] ? __this_cpu_preempt_check+0x13/0x20 [ 257.405044][ T406] ? xfd_validate_state+0x70/0x150 [ 257.410161][ T406] ? __kasan_check_write+0x14/0x20 [ 257.415272][ T406] __x64_sys_sendto+0xe5/0x100 [ 257.420045][ T406] x64_sys_call+0x83/0x9a0 [ 257.424452][ T406] do_syscall_64+0x4c/0xa0 [ 257.428876][ T406] ? clear_bhb_loop+0x30/0x80 [ 257.433554][ T406] ? clear_bhb_loop+0x30/0x80 [ 257.438342][ T406] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 257.444264][ T406] RIP: 0033:0x7f1702959017 [ 257.448679][ T406] 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 [ 257.469508][ T406] RSP: 002b:00007ffd4069d190 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 257.478844][ T406] RAX: ffffffffffffffda RBX: 000055557e78d500 RCX: 00007f1702959017 [ 257.486838][ T406] RDX: 0000000000000040 RSI: 00007f1703754670 RDI: 0000000000000003 [ 257.494908][ T406] RBP: 0000000000000001 R08: 00007ffd4069d1f4 R09: 000000000000000c [ 257.502969][ T406] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 257.511107][ T406] R13: 0000000000000000 R14: 00007f1703754670 R15: 0000000000000000 [ 257.519380][ T406] [ 257.522401][ T411] CPU: 0 PID: 411 Comm: syz.1.18 Not tainted syzkaller #0 [ 257.529691][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 257.539744][ T411] Call Trace: [ 257.543014][ T411] [ 257.545935][ T411] __dump_stack+0x21/0x24 [ 257.550360][ T411] dump_stack_lvl+0x110/0x170 [ 257.555065][ T411] ? __cfi_dump_stack_lvl+0x8/0x8 [ 257.560543][ T411] dump_stack+0x15/0x24 [ 257.564733][ T411] should_fail_ex+0x3bf/0x510 [ 257.569684][ T411] ? taskstats_exit+0x1f0/0xb10 [ 257.574771][ T411] __should_failslab+0xac/0xf0 [ 257.579847][ T411] should_failslab+0x9/0x20 [ 257.584433][ T411] kmem_cache_alloc+0x3b/0x320 [ 257.589294][ T411] taskstats_exit+0x1f0/0xb10 [ 257.593956][ T411] ? exit_itimers+0x612/0x670 [ 257.598714][ T411] ? acct_update_integrals+0x32b/0x370 [ 257.604161][ T411] ? __cfi_taskstats_exit+0x10/0x10 [ 257.609347][ T411] ? __kasan_check_write+0x14/0x20 [ 257.614621][ T411] ? tty_audit_exit+0x12e/0x1e0 [ 257.619747][ T411] do_exit+0x89e/0x2850 [ 257.623987][ T411] ? preempt_schedule+0xbc/0xd0 [ 257.628837][ T411] ? __cfi_do_exit+0x10/0x10 [ 257.633422][ T411] ? __kasan_check_read+0x11/0x20 [ 257.638441][ T411] ? ttwu_do_wakeup+0x102/0x490 [ 257.643399][ T411] ? __kasan_check_write+0x14/0x20 [ 257.648507][ T411] ? _raw_spin_lock_irq+0x95/0xf0 [ 257.654072][ T411] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 257.659638][ T411] do_group_exit+0x21b/0x2e0 [ 257.664247][ T411] ? __kasan_check_write+0x14/0x20 [ 257.669475][ T411] ? recalc_sigpending+0x168/0x1c0 [ 257.674764][ T411] get_signal+0x167c/0x1700 [ 257.679487][ T411] ? __cfi_get_signal+0x10/0x10 [ 257.685078][ T411] arch_do_signal_or_restart+0xd1/0x11c0 [ 257.690825][ T411] ? do_futex+0x2bf/0x430 [ 257.695516][ T411] ? __cfi_do_futex+0x10/0x10 [ 257.700510][ T411] ? __kasan_check_write+0x14/0x20 [ 257.705707][ T411] ? mutex_unlock+0x8f/0x230 [ 257.711182][ T411] ? __cfi_arch_do_signal_or_restart+0x10/0x10 [ 257.717477][ T411] ? __se_sys_futex+0x136/0x310 [ 257.722676][ T411] ? __se_sys_ioctl+0x1f/0x1b0 [ 257.727447][ T411] exit_to_user_mode_loop+0x7a/0xb0 [ 257.732640][ T411] exit_to_user_mode_prepare+0x87/0xd0 [ 257.738092][ T411] syscall_exit_to_user_mode+0x1a/0x30 [ 257.743733][ T411] do_syscall_64+0x58/0xa0 [ 257.748148][ T411] ? clear_bhb_loop+0x30/0x80 [ 257.753629][ T411] ? clear_bhb_loop+0x30/0x80 [ 257.758331][ T411] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 257.764816][ T411] RIP: 0033:0x7f049f79de99 [ 257.769410][ T411] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 257.789761][ T411] RSP: 002b:00007f04a06bb0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 257.798202][ T411] RAX: 0000000000000001 RBX: 00007f049fa25fa8 RCX: 00007f049f79de99 [ 257.806448][ T411] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f049fa25fac [ 257.814524][ T411] RBP: 00007f049fa25fa0 R08: 0036e06ae760f9c0 R09: 0000000000000000 [ 257.822502][ T411] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 [ 257.830660][ T411] R13: 00007f049fa26038 R14: 00007ffe19134420 R15: 00007ffe19134508 [ 257.838932][ T411] [ 257.841949][ T103] CPU: 1 PID: 103 Comm: udevd Not tainted syzkaller #0 [ 257.848896][ T103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 257.858963][ T103] Call Trace: [ 257.862231][ T103] [ 257.865146][ T103] __dump_stack+0x21/0x24 [ 257.869494][ T103] dump_stack_lvl+0x110/0x170 [ 257.874666][ T103] ? __cfi_dump_stack_lvl+0x8/0x8 [ 257.879872][ T103] ? kernfs_put+0x44f/0x480 [ 257.884394][ T103] ? down_read+0xa6/0xf0 [ 257.888777][ T103] dump_stack+0x15/0x24 [ 257.892922][ T103] should_fail_ex+0x3bf/0x510 [ 257.897678][ T103] ? getname_flags+0xba/0x510 [ 257.902706][ T103] __should_failslab+0xac/0xf0 [ 257.907472][ T103] should_failslab+0x9/0x20 [ 257.911968][ T103] kmem_cache_alloc+0x3b/0x320 [ 257.916987][ T103] getname_flags+0xba/0x510 [ 257.921515][ T103] user_path_at_empty+0x2f/0x1c0 [ 257.926465][ T103] do_readlinkat+0xd9/0x490 [ 257.931082][ T103] ? __x64_sys_getdents64+0x90/0x90 [ 257.936463][ T103] ? cp_old_stat+0x4a0/0x4a0 [ 257.941071][ T103] ? do_user_addr_fault+0x9a5/0x1030 [ 257.946440][ T103] ? debug_smp_processor_id+0x17/0x20 [ 257.952303][ T103] __x64_sys_readlink+0x7f/0x90 [ 257.957259][ T103] x64_sys_call+0x87f/0x9a0 [ 257.962050][ T103] do_syscall_64+0x4c/0xa0 [ 257.966465][ T103] ? clear_bhb_loop+0x30/0x80 [ 257.971243][ T103] ? clear_bhb_loop+0x30/0x80 [ 257.976058][ T103] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 257.982072][ T103] RIP: 0033:0x7f232ad153a7 [ 257.986497][ T103] Code: 00 00 90 48 83 ec 10 48 63 ff 45 31 c9 45 31 c0 6a 00 31 c9 e8 8a 20 f9 ff 48 83 c4 18 c3 0f 1f 44 00 00 b8 59 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 21 ba 0d 00 f7 d8 64 89 02 48 [ 258.006114][ T103] RSP: 002b:00007ffe5f194fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000059 [ 258.015479][ T103] RAX: ffffffffffffffda RBX: 00007ffe5f195480 RCX: 00007f232ad153a7 [ 258.023790][ T103] RDX: 0000000000000400 RSI: 00007ffe5f194fb0 RDI: 00007ffe5f195480 [ 258.032032][ T103] RBP: 00007ffe5f194fb0 R08: 0000558885204c44 R09: 0000000000000001 [ 258.040260][ T103] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000400 [ 258.048226][ T103] R13: 00000000000000fe R14: 000055886dd19be0 R15: 00007ffe5f195f80 [ 258.056414][ T103] [ 258.082657][ T407] CPU: 1 PID: 407 Comm: syz.5.19 Not tainted syzkaller #0 [ 258.088251][ T103] udevd[103]: worker [409] terminated by signal 6 (Aborted) [ 258.089902][ T407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 258.089915][ T407] Call Trace: [ 258.103777][ T103] udevd[103]: worker [409] failed while handling '/devices/virtual/block/loop5' [ 258.107337][ T407] [ 258.107347][ T407] __dump_stack+0x21/0x24 [ 258.126873][ T407] dump_stack_lvl+0x110/0x170 [ 258.132011][ T407] ? __cfi_dump_stack_lvl+0x8/0x8 [ 258.137181][ T407] ? prep_new_page+0x1c/0x110 [ 258.141882][ T407] dump_stack+0x15/0x24 [ 258.146047][ T407] should_fail_ex+0x3bf/0x510 [ 258.150728][ T407] ? mas_alloc_nodes+0x2d8/0x850 [ 258.155753][ T407] __should_failslab+0xac/0xf0 [ 258.160511][ T407] should_failslab+0x9/0x20 [ 258.165124][ T407] kmem_cache_alloc+0x3b/0x320 [ 258.169912][ T407] mas_alloc_nodes+0x2d8/0x850 [ 258.174712][ T407] mas_preallocate+0xe3d/0x1430 [ 258.179580][ T407] ? __cfi_mas_preallocate+0x10/0x10 [ 258.184856][ T407] ? rwsem_write_trylock+0x136/0x300 [ 258.190182][ T407] vma_expand+0x437/0xad0 [ 258.194879][ T407] mmap_region+0xf04/0x2130 [ 258.199591][ T407] ? should_fail+0xb/0x10 [ 258.204116][ T407] ? __cfi_mmap_region+0x10/0x10 [ 258.209269][ T407] ? cap_mmap_addr+0x165/0x2e0 [ 258.214402][ T407] ? futex_wake+0x5b7/0x8e0 [ 258.219134][ T407] ? get_unmapped_area+0x30c/0x370 [ 258.224357][ T407] do_mmap+0x858/0xdd0 [ 258.228501][ T407] ? __cfi_do_mmap+0x10/0x10 [ 258.233283][ T407] ? do_futex+0x2bf/0x430 [ 258.237604][ T407] ? _copy_from_user+0x8f/0xc0 [ 258.242601][ T407] vm_mmap_pgoff+0x206/0x3f0 [ 258.247292][ T407] ? __cfi_vm_mmap_pgoff+0x10/0x10 [ 258.252517][ T407] ? __x64_sys_futex+0x100/0x100 [ 258.257461][ T407] ? xfd_validate_state+0x70/0x150 [ 258.262581][ T407] ksys_mmap_pgoff+0xf6/0x1d0 [ 258.267344][ T407] __x64_sys_mmap+0xfa/0x110 [ 258.272022][ T407] x64_sys_call+0x8fd/0x9a0 [ 258.276843][ T407] do_syscall_64+0x4c/0xa0 [ 258.281385][ T407] ? clear_bhb_loop+0x30/0x80 [ 258.286206][ T407] ? clear_bhb_loop+0x30/0x80 [ 258.290982][ T407] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 258.296975][ T407] RIP: 0033:0x7fc87c39dc02 [ 258.301535][ T407] Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 [ 258.323667][ T407] RSP: 002b:00007ffdc62d0238 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 258.332093][ T407] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc87c39dc02 [ 258.340156][ T407] RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000 [ 258.348233][ T407] RBP: 0000000000020022 R08: 00000000ffffffff R09: 0000000000000000 [ 258.356386][ T407] R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffdc62d03a0 [ 258.364368][ T407] R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 [ 258.372350][ T407] [ 258.376193][ T407] ------------[ cut here ]------------ [ 258.381816][ T407] kernel BUG at mm/mmap.c:2854! [ 258.387027][ T407] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 258.393305][ T407] CPU: 1 PID: 407 Comm: syz.5.19 Not tainted syzkaller #0 [ 258.400413][ T407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 258.410545][ T407] RIP: 0010:mmap_region+0x1fe8/0x2130 [ 258.415934][ T407] Code: 50 80 e1 07 80 c1 03 38 c1 0f 8c e1 f9 ff ff 48 8b 7c 24 50 e8 69 46 09 00 e9 d2 f9 ff ff e8 ef ba c3 ff 0f 0b e8 e8 ba c3 ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 66 e7 ff ff 48 89 df e8 [ 258.436255][ T407] RSP: 0018:ffffc90000a97a40 EFLAGS: 00010293 [ 258.442416][ T407] RAX: ffffffff81adab58 RBX: 00007fc87d20d000 RCX: ffff88810ffe3cc0 [ 258.450723][ T407] RDX: 0000000000000000 RSI: 00007fc87d20cfff RDI: 00007fc87d20d000 [ 258.458727][ T407] RBP: ffffc90000a97c30 R08: ffff88810ffe3cc0 R09: 0000000000000003 [ 258.467171][ T407] R10: 0000000000000003 R11: 0000000000000000 R12: 00007fc87d20cfff [ 258.475423][ T407] R13: 00007fc87d20d000 R14: dffffc0000000000 R15: 00007fc87d1ec000 [ 258.483602][ T407] FS: 000055555f469500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 258.492569][ T407] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 258.499147][ T407] CR2: 00005555618dc888 CR3: 000000010cd1a000 CR4: 00000000003506a0 [ 258.507124][ T407] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 258.515554][ T407] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 258.523653][ T407] Call Trace: [ 258.526945][ T407] [ 258.529891][ T407] ? should_fail+0xb/0x10 [ 258.534243][ T407] ? __cfi_mmap_region+0x10/0x10 [ 258.539224][ T407] ? cap_mmap_addr+0x165/0x2e0 [ 258.544030][ T407] ? futex_wake+0x5b7/0x8e0 [ 258.548728][ T407] ? get_unmapped_area+0x30c/0x370 [ 258.553948][ T407] do_mmap+0x858/0xdd0 [ 258.558295][ T407] ? __cfi_do_mmap+0x10/0x10 [ 258.563007][ T407] ? do_futex+0x2bf/0x430 [ 258.567509][ T407] ? _copy_from_user+0x8f/0xc0 [ 258.572380][ T407] vm_mmap_pgoff+0x206/0x3f0 [ 258.577202][ T407] ? __cfi_vm_mmap_pgoff+0x10/0x10 [ 258.582497][ T407] ? __x64_sys_futex+0x100/0x100 [ 258.587480][ T407] ? xfd_validate_state+0x70/0x150 [ 258.592716][ T407] ksys_mmap_pgoff+0xf6/0x1d0 [ 258.597417][ T407] __x64_sys_mmap+0xfa/0x110 [ 258.602010][ T407] x64_sys_call+0x8fd/0x9a0 [ 258.606506][ T407] do_syscall_64+0x4c/0xa0 [ 258.610913][ T407] ? clear_bhb_loop+0x30/0x80 [ 258.616100][ T407] ? clear_bhb_loop+0x30/0x80 [ 258.620780][ T407] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 258.626699][ T407] RIP: 0033:0x7fc87c39dc02 [ 258.631190][ T407] Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 [ 258.650876][ T407] RSP: 002b:00007ffdc62d0238 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 258.659294][ T407] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc87c39dc02 [ 258.667359][ T407] RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000 [ 258.675616][ T407] RBP: 0000000000020022 R08: 00000000ffffffff R09: 0000000000000000 [ 258.683690][ T407] R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffdc62d03a0 [ 258.691938][ T407] R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 [ 258.700108][ T407] [ 258.703138][ T407] Modules linked in: [ 258.708137][ T407] ---[ end trace 0000000000000000 ]--- [ 258.716766][ T407] RIP: 0010:mmap_region+0x1fe8/0x2130 [ 258.722314][ T407] Code: 50 80 e1 07 80 c1 03 38 c1 0f 8c e1 f9 ff ff 48 8b 7c 24 50 e8 69 46 09 00 e9 d2 f9 ff ff e8 ef ba c3 ff 0f 0b e8 e8 ba c3 ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 66 e7 ff ff 48 89 df e8 2026/07/27 19:32:51 executed programs: 14 [ 258.742800][ T407] RSP: 0018:ffffc90000a97a40 EFLAGS: 00010293 [ 258.748906][ T407] RAX: ffffffff81adab58 RBX: 00007fc87d20d000 RCX: ffff88810ffe3cc0 [ 258.756970][ T407] RDX: 0000000000000000 RSI: 00007fc87d20cfff RDI: 00007fc87d20d000 [ 258.765090][ T407] RBP: ffffc90000a97c30 R08: ffff88810ffe3cc0 R09: 0000000000000003 [ 258.773339][ T407] R10: 0000000000000003 R11: 0000000000000000 R12: 00007fc87d20cfff [ 258.784021][ T407] R13: 00007fc87d20d000 R14: dffffc0000000000 R15: 00007fc87d1ec000 [ 258.792087][ T407] FS: 000055555f469500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 258.801496][ T407] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 258.808211][ T407] CR2: 00005555618dc888 CR3: 000000010cd1a000 CR4: 00000000003506a0 [ 258.816536][ T407] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 258.825684][ T407] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 258.833822][ T407] Kernel panic - not syncing: Fatal exception [ 258.836136][ T28] audit: type=1400 audit(1785180771.962:107): avc: denied { read } for pid=85 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 258.836167][ T28] audit: type=1400 audit(1785180771.962:108): avc: denied { search } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 258.836187][ T28] audit: type=1400 audit(1785180771.962:109): avc: denied { write } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 258.836205][ T28] audit: type=1400 audit(1785180771.962:110): avc: denied { add_name } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 258.836224][ T28] audit: type=1400 audit(1785180771.962:111): avc: denied { create } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 258.836243][ T28] audit: type=1400 audit(1785180771.962:112): avc: denied { append open } for pid=85 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 258.836263][ T28] audit: type=1400 audit(1785180771.962:113): avc: denied { getattr } for pid=85 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 258.993174][ T407] Kernel Offset: disabled [ 258.997569][ T407] Rebooting in 86400 seconds..