watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.0.1316:5195]
Modules linked in:
CPU: 0 PID: 5195 Comm: syz.0.1316 Not tainted 5.4.276-syzkaller-00021-g58de09405d1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:unwind_get_return_address+0x64/0x80 arch/x86/kernel/unwind_orc.c:314
Code: 89 df e8 df 63 64 00 48 8b 3b e8 37 c1 12 00 85 c0 74 14 43 80 3c 37 00 74 08 48 89 df e8 c4 63 64 00 48 8b 03 eb 02 31 c0 5b <41> 5e 41 5f c3 89 d9 80 e1 07 80 c1 03 38 c1 7c ad 48 89 df e8 93
RSP: 0018:ffff8881f6e096e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8480023b RBX: ffff8881f6e09700 RCX: 689034c01a3e9400
RDX: ffff8881f6e09740 RSI: ffff8881f6e09380 RDI: ffffffff8480023b
RBP: ffff8881f6e09790 R08: dffffc0000000000 R09: ffff8881f6e09750
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881d9794ec0
R13: ffffffff8153aff0 R14: dffffc0000000000 R15: 1ffff1103edc12e9
FS:  00007f6d0bf5d6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555558174a8 CR3: 00000001d0255000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0xf5/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 __kasan_kmalloc+0x171/0x210 mm/kasan/common.c:529
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slub.c:2829 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 __kmalloc_track_caller+0x100/0x2b0 mm/slub.c:4449
 __kmalloc_reserve net/core/skbuff.c:142 [inline]
 __alloc_skb+0xb4/0x4d0 net/core/skbuff.c:210
 alloc_skb include/linux/skbuff.h:1080 [inline]
 ndisc_alloc_skb+0xee/0x2c0 net/ipv6/ndisc.c:421
 ndisc_send_rs+0x269/0x6a0 net/ipv6/ndisc.c:687
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x4d/0x80 kernel/locking/spinlock.c:191
Code: 74 0c 48 c7 c7 90 3b eb 85 e8 af 01 43 fd 48 83 3d 17 1f 9a 01 00 74 36 48 89 df e8 0d d7 fa fc 66 90 4c 89 34 24 ff 34 24 9d <bf> 01 00 00 00 e8 89 c3 f3 fc 65 8b 05 ee 70 b1 7b 85 c0 74 08 48
RSP: 0018:ffff8881dec97740 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881d9938cc0 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff8881d9938cc0
RBP: ffff8881dec977b0 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f6e57b40
R13: ffff8881d9795360 R14: 0000000000000246 R15: ffff8881e5b91ff8
 finish_task_switch+0x23e/0x590 kernel/sched/core.c:3470
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:check_memory_region+0x1/0x280 mm/kasan/generic.c:190
Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c7 23 89 59 85 eb 0a 48 c7 c7 5b 89 59 85 4c 89 fe e8 8c 91 bb 02 31 db eb d7 90 90 55 <41> 57 41 56 53 b0 01 48 85 f6 0f 84 8e 01 00 00 48 89 fd 48 c1 ed
RSP: 0018:ffff8881dec97a00 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881d97946e0 RCX: ffffffff814493a8
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881d9793f20
RBP: ffff8881dec97b70 R08: ffffffff8166e6ea R09: fffffbfff0c96d9e
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffff8881d9793f00 R15: ffff8881d9793f20
 atomic_fetch_sub include/asm-generic/atomic-instrumented.h:199 [inline]
 refcount_sub_and_test include/linux/refcount.h:253 [inline]
 refcount_dec_and_test include/linux/refcount.h:281 [inline]
 put_task_struct include/linux/sched/task.h:121 [inline]
 wake_up_q+0xa8/0xf0 kernel/sched/core.c:503
 futex_wake+0x601/0x840 kernel/futex.c:1724
 do_futex+0x13fe/0x19f0 kernel/futex.c:3893
 __do_sys_futex kernel/futex.c:3949 [inline]
 __se_sys_futex+0x355/0x470 kernel/futex.c:3917
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f6d0cd1db99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d0bf5d0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f6d0ceac118 RCX: 00007f6d0cd1db99
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f6d0ceac11c
RBP: 00007f6d0ceac110 R08: 00007fffa23cb0b0 R09: 00007f6d0bf5d6c0
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f6d0ceac11c
R13: 000000000000000b R14: 00007fffa23b7210 R15: 00007fffa23b72f8
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3782 Comm: syz.3.981 Not tainted 5.4.276-syzkaller-00021-g58de09405d1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__rcu_read_unlock+0x1/0x110 kernel/rcu/tree_plugin.h:373
Code: 75 04 ff 03 5b c3 89 d9 80 e1 07 80 c1 03 38 c1 7c f0 48 89 df e8 6f 0a 42 00 eb e6 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 <41> 57 41 56 41 55 41 54 53 49 bc 00 00 00 00 00 fc ff df 65 4c 8b
RSP: 0018:ffff8881f6f08c28 EFLAGS: 00000096
RAX: ffffffff819f41d9 RBX: 0000000000000001 RCX: ffff8881e3c5bf00
RDX: 0000000000010502 RSI: 0000000000000004 RDI: 0000000000000001
RBP: 1ffff1103c650b60 R08: dffffc0000000000 R09: ffffed103bd564b1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e3285b04
R13: 0000000000000002 R14: ffff8881e3285a68 R15: dffffc0000000000
FS:  00007f92ab6a86c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f92ac426b6f CR3: 0000000005e0e000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 perf_event_wakeup kernel/events/core.c:6042 [inline]
 perf_pending_event+0x318/0x520 kernel/events/core.c:6098
 irq_work_run_list+0x1b0/0x240 kernel/irq_work.c:165
 irq_work_run+0x63/0xe0 kernel/irq_work.c:180
 smp_irq_work_interrupt+0x7f/0x250 arch/x86/kernel/irq_work.c:21
 irq_work_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:865
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:90 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:108 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:134 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:165 [inline]
RIP: 0010:check_memory_region_inline mm/kasan/generic.c:181 [inline]
RIP: 0010:check_memory_region+0x7d/0x280 mm/kasan/generic.c:191
Code: 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 0f 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee <e9> 1d 01 00 00 45 89 cf 41 83 e7 07 0f 84 b5 00 00 00 41 80 39 00
RSP: 0018:ffff8881f6f08e58 EFLAGS: 00000256 ORIG_RAX: ffffffffffffff09
RAX: f2f2f200f1f1f101 RBX: 1ffff1103ede11f4 RCX: ffffffff812fde60
RDX: 0000000000000001 RSI: 0000000000000060 RDI: ffff8881f6f08fa0
RBP: 000000000000000c R08: dffffc0000000000 R09: ffffed103ede1200
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881f6f08fa0 R14: ffffed103ede1200 R15: ffff8881e3c5bf00
 memset+0x1f/0x40 mm/kasan/common.c:106
 __unwind_start+0x90/0x890 arch/x86/kernel/unwind_orc.c:619
 unwind_start arch/x86/include/asm/unwind.h:60 [inline]
 arch_stack_walk+0xdd/0x140 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 kasan_set_free_info mm/kasan/common.c:345 [inline]
 __kasan_slab_free+0x1b5/0x270 mm/kasan/common.c:487
 slab_free_hook mm/slub.c:1455 [inline]
 slab_free_freelist_hook mm/slub.c:1494 [inline]
 slab_free mm/slub.c:3080 [inline]
 kmem_cache_free+0x10b/0x2c0 mm/slub.c:3096
 xfrmi_xmit+0x9db/0x1130 net/xfrm/xfrm_interface_core.c:402
 __netdev_start_xmit include/linux/netdevice.h:4538 [inline]
 netdev_start_xmit include/linux/netdevice.h:4552 [inline]
 xmit_one net/core/dev.c:3221 [inline]
 dev_hard_start_xmit+0x1b7/0x6b0 net/core/dev.c:3237
 __dev_queue_xmit+0x14da/0x27e0 net/core/dev.c:3802
 neigh_output include/net/neighbour.h:518 [inline]
 ip6_finish_output2+0xf9e/0x18e0 net/ipv6/ip6_output.c:144
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x1b3/0x430 net/ipv6/ip6_output.c:248
 dst_output include/net/dst.h:438 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ndisc_send_skb+0x702/0xc30 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 35 01 43 fd 48 83 3d 9d 1e 9a 01 00 74 29 48 89 df e8 93 d6 fa fc 66 90 fb bf 01 00 00 00 <e8> 16 c3 f3 fc 65 8b 05 7b 70 b1 7b 85 c0 74 02 5b c3 e8 04 37 af
RSP: 0018:ffff8881d79674b0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6f57b40 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881d7967510 R08: ffffffff81799679 R09: fffffbfff0c96e7b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6f57b40
R13: ffff8881e3c5bf00 R14: dffffc0000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3347 [inline]
 finish_task_switch+0x130/0x590 kernel/sched/core.c:3447
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:compound_head include/linux/page-flags.h:176 [inline]
RIP: 0010:release_pages+0x1fb/0xb20 mm/swap.c:801
Code: 3d 82 30 c9 04 0f 84 3e ff ff ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 2a d8 11 00 48 8b 1b 89 de <83> e6 01 31 ff e8 5b f6 e1 ff f6 c3 01 0f 85 e4 07 00 00 e8 ed f2
RSP: 0018:ffff8881d7967760 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffffd4000ee85d1 RBX: dead000000000100 RCX: ffff8881e3c5bf00
RDX: 0000000000000000 RSI: 0000000000000100 RDI: ffff8881e1a800c0
RBP: ffff8881d7967868 R08: ffffffff81824644 R09: fffff94000ee85df
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e1a80010
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffea0007742e80
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:189 [inline]
 tlb_flush_mmu mm/mmu_gather.c:196 [inline]
 tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:277
 exit_mmap+0x2dc/0x520 mm/mmap.c:3193
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f92ac426b99
Code: Bad RIP value.
RSP: 002b:00007f92ab6a80f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007f92ac5b4f68 RCX: 00007f92ac426b99
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f92ac5b4f6c
RBP: 00007f92ac5b4f60 R08: 00007ffe1f1f20b0 R09: 00007f92ab6a86c0
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f92ac5b4f6c
R13: 000000000000000b R14: 00007ffe1f079200 R15: 00007ffe1f0792e8