watchdog: BUG: soft lockup - CPU#1 stuck for 232s! [syz.4.804:3969]
Modules linked in:
CPU: 1 PID: 3969 Comm: syz.4.804 Not tainted 5.15.151-syzkaller-00059-g5356d2f17edf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:unwind_next_frame+0x5a5/0x700 arch/x86/kernel/unwind_frame.c:360
Code: 74 5f 4c 89 f7 e8 eb 05 00 00 48 ba 00 00 00 00 00 fc ff df 41 0f b6 04 17 84 c0 0f 85 b6 00 00 00 41 c7 06 00 00 00 00 31 c0 <48> 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 44 89 f1 80 e1 07 80
RSP: 0018:ffffc900001d0018 EFLAGS: 00000202
RAX: 00000000001d0001 RBX: ffffc900001d0fc0 RCX: 00000000001d0001
RDX: 1ffff9200003a016 RSI: ffffc900001d0fd8 RDI: ffffc900001d00f8
RBP: ffffc900001d0090 R08: ffffc900001d0188 R09: 0000000000000014
R10: ffffc900001d0190 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc900001d00f0 R14: ffffc900001d00a0 R15: 1ffff9200003a014
FS:  00007fcadcdd76c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000114bfb000 CR4: 00000000003506a0
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:122
 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:433 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc_track_caller+0x139/0x260 mm/slub.c:4950
 kmalloc_reserve net/core/skbuff.c:357 [inline]
 __alloc_skb+0x10c/0x550 net/core/skbuff.c:428
 alloc_skb include/linux/skbuff.h:1183 [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:101
 neigh_del net/core/neighbour.c:197 [inline]
 neigh_remove_one+0x3a6/0x430 net/core/neighbour.c:218
 neigh_forced_gc net/core/neighbour.c:251 [inline]
 neigh_alloc net/core/neighbour.c:429 [inline]
 ___neigh_create+0x474/0x1bd0 net/core/neighbour.c:591
 __neigh_create+0x32/0x40 net/core/neighbour.c:679
 ip6_finish_output2+0x9ee/0x16e0 net/ipv6/ip6_output.c:123
 __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:3977
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
 expire_timers kernel/time/timer.c:1472 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1743
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
 __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:__sanitizer_cov_trace_pc+0x45/0x60 kernel/kcov.c:202
Code: ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 5c 0b 00 00 00 74 2c 8b 91 38 0b 00 00 83 fa 02 75 21 48 8b 91 40 0b 00 00 48 8b 32 <48> 8d 7e 01 8b 89 3c 0b 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89
RSP: 0018:ffffc90001417ea8 EFLAGS: 00000246
RAX: ffffffff81bf9590 RBX: 0000000000000000 RCX: ffff888110112780
RDX: ffffc900056e8000 RSI: 0000000000000022 RDI: 00000000fffffdfd
RBP: ffffc90001417ea8 R08: ffffffff81bf94f7 R09: ffffed1021226f63
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000200006c0
R13: ffff8881136f6a80 R14: 0000000000005452 R15: 0000000000005452
 __do_sys_ioctl fs/ioctl.c:873 [inline]
 __se_sys_ioctl+0x140/0x190 fs/ioctl.c:860
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fcaddb55f19
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:00007fcadcdd7048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcaddce5f60 RCX: 00007fcaddb55f19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000008
RBP: 00007fcaddbc4e68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fcaddce5f60 R15: 00007ffca94e36f8
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2797 Comm: syz.2.547 Not tainted 5.15.151-syzkaller-00059-g5356d2f17edf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:hrtimer_interrupt+0x3f3/0xaa0
Code: 8b 45 c0 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 48 8b 55 d0 0f 85 40 04 00 00 44 88 22 bf 08 00 00 00 e8 0d 28 e2 ff <4c> 8b 65 c8 4c 89 e7 48 8b 75 b8 48 8b 55 b0 b9 0f 00 00 00 e8 94
RSP: 0018:ffffc90000007248 EFLAGS: 00000046
RAX: ffffffff8160c374 RBX: 7fffffffffffffff RCX: ffff888110ec2780
RDX: 0000000000010503 RSI: 7fffffffffffffff RDI: 00000185ba429fc6
RBP: ffffc90000007350 R08: ffffffff8160c36a R09: 0000000000000003
R10: fffff52000000e34 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000000000002 R14: ffff8881f7029a30 R15: 00000185ba429fc6
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000680f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 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:queued_write_lock_slowpath+0x159/0x440 kernel/locking/qrwlock.c:78
Code: 41 81 0f 00 01 00 00 48 8b 5c 24 08 43 0f b6 04 2e 84 c0 0f 85 94 00 00 00 41 8b 07 3d 00 01 00 00 74 27 f3 90 43 0f b6 04 2e <84> c0 74 eb 44 89 f9 80 e1 07 80 c1 03 38 c1 7c de 4c 89 ff e8 ae
RSP: 0018:ffffc90000007460 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 1ffff92000000e96 RCX: ffffffff815510ee
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff86f92788
RBP: ffffc90000007510 R08: dffffc0000000000 R09: fffffbfff0df24f2
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900000074b0
R13: dffffc0000000000 R14: 1ffffffff0df24f1 R15: ffffffff86f92788
 queued_write_lock include/asm-generic/qrwlock.h:97 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:324
 ___neigh_create+0xd0d/0x1bd0 net/core/neighbour.c:625
 __neigh_create+0x32/0x40 net/core/neighbour.c:679
 ip6_finish_output2+0x9ee/0x16e0 net/ipv6/ip6_output.c:123
 __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:3977
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
 expire_timers kernel/time/timer.c:1472 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1743
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
 __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:__schedule+0xcd9/0x1590 kernel/sched/core.c:6520
Code: b6 04 28 84 c0 0f 85 7f 02 00 00 41 80 24 24 fc 4c 89 f7 48 8b 74 24 08 e8 94 94 38 fc 48 89 c7 e8 cc 4c 85 fc 48 8b 44 24 50 <48> c7 44 24 60 0e 36 e0 45 49 c7 44 05 00 00 00 00 00 65 48 8b 04
RSP: 0018:ffffc90000c473e0 EFLAGS: 00000282
RAX: 1ffff92000188e88 RBX: ffff888110ec2ca8 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000c474d0 R08: ffffffff8191d4d9 R09: fffffbfff0e0cc23
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7038388
R13: dffffc0000000000 R14: ffff888110ec2780 R15: 1ffff110221d8595
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:392
 irqentry_exit+0x30/0x40 kernel/entry/common.c:426
 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:__kasan_poison_pages+0x0/0x30 mm/kasan/common.c:117
Code: 48 c1 e7 06 48 b8 00 00 00 00 80 08 05 00 48 01 c7 be 00 10 00 00 48 d3 e6 e8 5c 30 00 00 5d c3 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 89 d0 89 f1 48 c1 e7 06 48 ba 00 00 00 00 80 08 05 00
RSP: 0018:ffffc90000c47678 EFLAGS: 00000297
RAX: 2aac1843cb4b0a00 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00047f3440
RBP: ffffc90000c476f0 R08: dffffc0000000000 R09: ffffed103ee271d9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffea00047f3440 R14: 000000000011fcd1 R15: 0000000000000000
 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:5853
 __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:148 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
 irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:314
 irqentry_exit+0x12/0x40 kernel/entry/common.c:405
 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: 0033:0x7fb5b8a6cf19
Code: Unable to access opcode bytes at RIP 0x7fb5b8a6ceef.
RSP: 002b:00007fb5b7cee048 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fb5b8bfcf60 RCX: 00007fb5b8a6cf19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000004
RBP: 00007fb5b8adbe68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb5b8bfcf60 R15: 00007ffea2169728
 </TASK>