watchdog: BUG: soft lockup - CPU#1 stuck for 226s! [syz.3.401:2487]
Modules linked in:
CPU: 1 PID: 2487 Comm: syz.3.401 Not tainted 5.15.157-syzkaller-00897-g53be7c8abe11 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:skb_network_header include/linux/skbuff.h:2677 [inline]
RIP: 0010:skb_network_offset include/linux/skbuff.h:2781 [inline]
RIP: 0010:neigh_resolve_output+0x3a7/0x760 net/core/neighbour.c:1497
Code: ee 03 48 89 b5 60 ff ff ff 49 bd 00 00 00 00 00 fc ff df 4c 89 a5 68 ff ff ff 48 89 5d 90 48 8b 85 50 ff ff ff 42 80 3c 28 00 <74> 08 4c 89 e7 e8 bf d1 c7 fd 4d 8b 3c 24 48 8b 85 58 ff ff ff 42
RSP: 0018:ffffc900001d0618 EFLAGS: 00000246
RAX: 1ffff11026fc4643 RBX: ffff888137e23220 RCX: 1ffff11026fc463e
RDX: 1ffff11026fc4636 RSI: 1ffff11026fc4636 RDI: 0000000000000001
RBP: ffffc900001d06d0 R08: dffffc0000000000 R09: ffffed102461c99c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888137e23218
R13: dffffc0000000000 R14: ffff8881230e4c9c R15: ffff8881230e4cc8
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000010bd5e000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 neigh_output include/net/neighbour.h:517 [inline]
 ip6_finish_output2+0xf95/0x16e0 net/ipv6/ip6_output.c:126
 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:197
 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:207
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:230
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 __do_softirq+0x26d/0x5bf kernel/softirq.c:565
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 b1 88 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 99 aa 98 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90000ba7020 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff88811da78b38 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000ba7070 R08: ffffffff81921469 R09: fffffbfff0e52e2b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0
R13: ffff88811da78000 R14: 1ffff1103ee27081 R15: ffff8881f7138408
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0xcd4/0x1590 kernel/sched/core.c:6512
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:stack_trace_consume_entry+0x134/0x290 kernel/stacktrace.c:95
Code: f2 35 53 00 4d 89 e8 4c 8b 55 c8 4c 89 fe 4c 89 f2 48 89 33 41 8b 1a 41 0f b6 04 14 84 c0 0f 85 37 01 00 00 41 3b 18 0f 92 c0 <48> 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 44 89 d1 80 e1 07 80
RSP: 0018:ffffc90000ba7308 EFLAGS: 00000283
RAX: 0000000000000001 RBX: 000000000000000b RCX: 0000000000ba7301
RDX: dffffc0000000000 RSI: ffffffff81429941 RDI: ffffc90000ba744c
RBP: ffffc90000ba7350 R08: ffffc90000ba7448 R09: 000000000000000a
R10: ffffc90000ba7450 R11: dffffc0000000001 R12: 1ffff92000174e89
R13: 1ffff92000174e89 R14: ffffc90000ba7520 R15: 1ffff92000174e8a
 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:139
 __reset_page_owner+0x36/0x190 mm/page_owner.c:156
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 free_pcp_prepare mm/page_alloc.c:1544 [inline]
 free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5855
 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652
 __vfree mm/vmalloc.c:2700 [inline]
 vfree+0x7f/0xb0 mm/vmalloc.c:2731
 kcov_put kernel/kcov.c:408 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:510
 __fput+0x3fe/0x910 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:878
 do_group_exit+0x141/0x310 kernel/exit.c:1000
 get_signal+0x7a3/0x1630 kernel/signal.c:2896
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320
 irqentry_exit+0x12/0x40 kernel/entry/common.c:411
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7f677224fef9
Code: Unable to access opcode bytes at RIP 0x7f677224fecf.
RSP: 002b:00007f6770eca0e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f6772408f88 RCX: 00007f677224fef9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6772408f88
RBP: 00007f6772408f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6772408f8c
R13: 0000000000000000 R14: 00007ffdcef6ea10 R15: 00007ffdcef6eaf8
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2804 Comm: syz.1.429 Not tainted 5.15.157-syzkaller-00897-g53be7c8abe11 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x60 kernel/kcov.c:190
Code: 00 00 0f 0b 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d d4 fe b8 05 48 89 de e8 64 8e 41 00 5b 5d c3 cc 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d 70 00 92 7e 65 8b 15 71 00 92 7e
RSP: 0018:ffffc90000007850 EFLAGS: 00000097
RAX: 0000000000010102 RBX: 0000000000000000 RCX: ffff8881174ba780
RDX: ffff8881174ba780 RSI: 0000000000000000 RDI: 0000000000000020
RBP: ffffc90000007890 R08: ffffffff81612ad7 R09: 0000000000000003
R10: fffff52000000f04 R11: dffffc0000000001 R12: ffff8881f7029a40
R13: dffffc0000000000 R14: ffff888129f0a5e0 R15: 0000000000000000
FS:  00007fa8bbdfa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8bbdd9d58 CR3: 0000000133358000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1702 [inline]
 __hrtimer_run_queues+0x478/0xad0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x40c/0xaa0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:ipv6_get_ifaddr+0x6/0x640 net/ipv6/addrconf.c:2046
Code: 0f 94 c1 4c 89 ff 4c 89 f6 48 89 da 41 b8 01 00 00 00 41 b9 40 00 00 00 e8 67 f5 ff ff 5b 41 5e 41 5f 5d c3 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec c0 00 00 00 89 4c 24 14
RSP: 0018:ffffc90000007bf0 EFLAGS: 00000246
RAX: 1ffff110222f449f RBX: 0000000000000006 RCX: 0000000000000001
RDX: ffff8881117a2000 RSI: ffffc90000007ce0 RDI: ffff88810c42e000
RBP: ffffc90000007bf8 R08: ffffffff845b22f4 R09: ffffed102306e06e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000007ce0
R13: ffffffff85d9d540 R14: ffff8881117a2000 R15: 1ffff110222f4449
 ndisc_send_rs+0x9a/0x6a0 net/ipv6/ndisc.c:672
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 __do_softirq+0x26d/0x5bf kernel/softirq.c:565
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 b1 88 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 99 aa 98 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc9000100fd40 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff8881174bb2b8 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc9000100fd90 R08: ffffffff81921469 R09: fffffbfff0e52e2b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f70378c0
R13: ffff8881174ba780 R14: 1ffff1103ee07081 R15: ffff8881f7038408
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0xcd4/0x1590 kernel/sched/core.c:6512
 schedule+0x11f/0x1e0 kernel/sched/core.c:6595
 exit_to_user_mode_loop+0x4d/0xe0 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320
 irqentry_exit+0x12/0x40 kernel/entry/common.c:411
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7fa8bd17fef9
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:00007fa8bbdfa0e8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 00007fa8bd338f88 RCX: 00007fa8bd17fef9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fa8bd338f8c
RBP: 00007fa8bd338f80 R08: 00007ffcc4bc90b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8bd338f8c
R13: 0000000000000000 R14: 00007ffcc4bc5ca0 R15: 00007ffcc4bc5d88
 </TASK>