watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.1.548:4340]
Modules linked in:
CPU: 0 PID: 4340 Comm: syz.1.548 Tainted: G        W         5.10.226-syzkaller-00709-ge5e5644ea27f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:unwind_next_frame+0x3af/0x700 arch/x86/kernel/unwind_frame.c:301
Code: eb 35 65 48 8b 05 51 54 d0 7e 48 39 45 98 74 0b 48 8b 7d d0 e8 62 03 00 00 eb 1c 48 8b 5d d0 48 89 d8 48 c1 e8 03 80 3c 10 00 <74> 08 48 89 df e8 77 2d 76 00 48 8b 03 4c 89 f7 48 89 45 d0 48 89
RSP: 0018:ffffc90000006fb8 EFLAGS: 00000246
RAX: 1ffff9200001ef5a RBX: ffffc900000f7ad0 RCX: 0000000000007001
RDX: dffffc0000000000 RSI: ffffffff813fbae9 RDI: ffffc900000f7f48
RBP: ffffc90000007030 R08: ffffc90000007128 R09: 0000000000000017
R10: ffffc90000007130 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc90000007090 R14: ffffc90000007040 R15: 1ffff92000000e08
FS:  00007f9ef0bba6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000122ecb000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:121
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:463
 kasan_slab_alloc include/linux/kasan.h:244 [inline]
 slab_post_alloc_hook+0x61/0x2f0 mm/slab.h:583
 slab_alloc_node mm/slub.c:2947 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 kmem_cache_alloc+0x168/0x2e0 mm/slub.c:2960
 kmem_cache_alloc_node include/linux/slab.h:423 [inline]
 __alloc_skb+0x80/0x510 net/core/skbuff.c:200
 alloc_skb include/linux/skbuff.h:1126 [inline]
 nlmsg_new include/net/netlink.h:953 [inline]
 __neigh_notify+0x7d/0x120 net/core/neighbour.c:3375
 neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:102
 neigh_del net/core/neighbour.c:198 [inline]
 neigh_remove_one+0x36b/0x3d0 net/core/neighbour.c:219
 neigh_forced_gc net/core/neighbour.c:252 [inline]
 neigh_alloc net/core/neighbour.c:430 [inline]
 ___neigh_create+0x484/0x1a10 net/core/neighbour.c:592
 __neigh_create+0x32/0x40 net/core/neighbour.c:680
 ip6_finish_output2+0x957/0x1850 net/ipv6/ip6_output.c:142
 __ip6_finish_output+0x5ec/0x780 net/ipv6/ip6_output.c:216
 ip6_finish_output+0x34/0x1e0 net/ipv6/ip6_output.c:226
 NF_HOOK_COND include/linux/netfilter.h:288 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:249
 dst_output include/net/dst.h:437 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ndisc_send_skb+0x6e9/0xc00 net/ipv6/ndisc.c:511
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3964
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1789
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:finish_task_switch+0x130/0x5a0 kernel/sched/core.c:3886
Code: c0 5f 05 00 48 8d 5f 2c 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 9f 01 00 00 c7 03 00 00 00 00 4c 89 e7 e8 50 30 69 03 <49> 8d 9d b8 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f
RSP: 0018:ffffc900000f7bc0 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888112f13b6c RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900000f7c10 R08: ffffffff8188e699 R09: fffffbfff0dc764b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7055fc0
R13: ffff8881305113c0 R14: dffffc0000000000 R15: 0000000000000000
 context_switch kernel/sched/core.c:4049 [inline]
 __schedule+0xbee/0x1330 kernel/sched/core.c:4804
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:5065
 irqentry_exit_cond_resched kernel/entry/common.c:365 [inline]
 irqentry_exit+0x4f/0x60 kernel/entry/common.c:395
 sysvec_apic_timer_interrupt+0xcb/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:__sanitizer_cov_trace_pc+0x59/0x60 kernel/kcov.c:205
Code: 2c 8b 91 b8 0a 00 00 83 fa 02 75 21 48 8b 91 c0 0a 00 00 48 8b 32 48 8d 7e 01 8b 89 bc 0a 00 00 48 39 cf 73 08 48 89 44 f2 08 <48> 89 3a 5d c3 66 90 55 48 89 e5 4c 8b 45 08 65 48 8b 15 20 c0 97
RSP: 0018:ffffc900000f7ea0 EFLAGS: 00000283
RAX: ffffffff81b11c3d RBX: ffff888123e3a300 RCX: 0000000000040000
RDX: ffffc90008a14000 RSI: 0000000000000024 RDI: 0000000000000025
RBP: ffffc900000f7ea0 R08: ffffffff81b5934d R09: ffffed1021229d5d
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000200006c0
R13: ffff888123e3a300 R14: ffff888123e3a301 R15: 0000000000005452
 fput+0xd/0x20 fs/file_table.c:357
 fdput include/linux/file.h:46 [inline]
 __do_sys_ioctl fs/ioctl.c:756 [inline]
 __se_sys_ioctl+0x177/0x190 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9ef1f40ff9
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:00007f9ef0bba038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9ef20f8f80 RCX: 00007f9ef1f40ff9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007f9ef1fb3296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9ef20f8f80 R15: 00007ffe7e308368
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3724 Comm: syz.4.490 Tainted: G        W         5.10.226-syzkaller-00709-ge5e5644ea27f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:clockevents_program_event+0x204/0x2c0 kernel/time/clockevents.c:337
Code: 12 4f 4a 00 4c 89 e7 4c 89 fe 41 ff 57 10 eb 12 45 84 f6 74 27 e8 1c b5 0c 00 4c 89 ff e8 c4 00 00 00 89 c3 89 d8 48 83 c4 08 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fc b4 0c 00 eb e8 e8 f5 b4 0c
RSP: 0018:ffffc90000170838 EFLAGS: 00000082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88811726e2c0
RDX: 0000000000010101 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000170860 R08: ffffffff815df792 R09: ffffffff815df65d
R10: 0000000000000002 R11: ffff88811726e2c0 R12: 00000000000019fe
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881f7126e80
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fde44ac9000 CR3: 000000000660f000 CR4: 00000000003506a0
DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 tick_program_event+0x9f/0x120 kernel/time/tick-oneshot.c:44
 hrtimer_interrupt+0x4cf/0x8b0 kernel/time/hrtimer.c:1724
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1083 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1100
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
 sysvec_apic_timer_interrupt+0xba/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:__mdb_fill_info+0x12f/0xbd0
Code: eb 30 e8 54 87 24 fd 49 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 38 00 74 05 e8 1d 21 62 fd 4d 8b 75 08 49 83 c6 18 49 8d 45 40 <48> 89 44 24 30 45 31 ed 4c 8d a4 24 c0 00 00 00 4c 89 f0 48 c1 e8
RSP: 0018:ffffc90000170ac0 EFLAGS: 00000286
RAX: ffff888135b51840 RBX: 1ffff9200002e164 RCX: ffff88811726e2c0
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff888135b51808
RBP: ffffc90000170c10 R08: dffffc0000000000 R09: ffffc90000170b80
R10: fffff5200002e173 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888135b51800 R14: ffff88811ae14a18 R15: dffffc0000000000
 nlmsg_populate_mdb_fill net/bridge/br_mdb.c:401 [inline]
 br_mdb_notify+0x71a/0xca0 net/bridge/br_mdb.c:593
 br_multicast_host_leave net/bridge/br_multicast.c:1218 [inline]
 br_multicast_group_expired+0x30a/0x5e0 net/bridge/br_multicast.c:541
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1789
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:unwind_get_return_address+0x48/0x90 arch/x86/kernel/unwind_frame.c:19
Code: 0f b6 04 30 84 c0 75 48 83 3b 00 74 3a 48 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89 df e8 1b 32 76 00 48 8b 3b <e8> 33 1c 14 00 85 c0 74 14 43 80 3c 37 00 74 08 48 89 df e8 00 32
RSP: 0018:ffffc900011e73f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900011e7468 RCX: 00000000011e7401
RDX: 1ffff9200023ce86 RSI: ffffc900011e76c8 RDI: ffffffff81ad2c36
RBP: ffffc900011e7410 R08: ffffc900011e7508 R09: 0000000000000000
R10: ffffc900011e7510 R11: dffffc0000000001 R12: ffff88811726e2c0
R13: ffffffff8159b790 R14: dffffc0000000000 R15: 1ffff9200023ce8d
 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:121
 save_stack+0x97/0x240 mm/page_owner.c:146
 __reset_page_owner+0x36/0x150 mm/page_owner.c:174
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1349 [inline]
 free_pcp_prepare mm/page_alloc.c:1421 [inline]
 free_unref_page_prepare+0x2ae/0x2d0 mm/page_alloc.c:3336
 free_unref_page mm/page_alloc.c:3391 [inline]
 free_the_page+0x9e/0x370 mm/page_alloc.c:5407
 __free_pages+0x67/0xc0 mm/page_alloc.c:5418
 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2301
 __vfree mm/vmalloc.c:2349 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2380
 kcov_put kernel/kcov.c:408 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:510
 __fput+0x33d/0x7b0 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x129/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc83/0x2a50 kernel/exit.c:863
 do_group_exit+0x141/0x310 kernel/exit.c:985
 get_signal+0x10a0/0x1410 kernel/signal.c:2790
 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f53c67f1ff9
Code: Unable to access opcode bytes at RIP 0x7f53c67f1fcf.
RSP: 002b:00007f53c544a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f53c69aa060 RCX: 00007f53c67f1ff9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f53c69aa064
RBP: 00007f53c69aa058 R08: 00007ffce9bcb0b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53c69aa064
R13: 0000000000000000 R14: 00007ffce9a89760 R15: 00007ffce9a89848