watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.4.955:7174]
Modules linked in:
CPU: 1 PID: 7174 Comm: syz.4.955 Tainted: G        W         5.10.226-syzkaller #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:ffffc9000016ff38 EFLAGS: 00000246
RAX: 1ffff9200002e006 RBX: ffffc90000170030 RCX: 1ffff9200002e00f
RDX: dffffc0000000000 RSI: ffffc90000170030 RDI: ffffc90001327f48
RBP: ffffc9000016ffb0 R08: dffffc0000000000 R09: ffffc90000170040
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc90000170090 R14: ffffc90000170040 R15: 1ffff9200002e008
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd31752c48 CR3: 000000000660f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000020000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __unwind_start+0x318/0x3a0 arch/x86/kernel/unwind_frame.c:407
 unwind_start arch/x86/include/asm/unwind.h:60 [inline]
 arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
 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:PageAnon include/linux/page-flags.h:494 [inline]
RIP: 0010:mm_counter include/linux/mm.h:2096 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1314 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1435 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1464 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1485 [inline]
RIP: 0010:unmap_page_range+0x104b/0x23b0 mm/memory.c:1506
Code: e6 01 31 ff e8 d6 3b cd ff f6 c3 01 0f 85 60 07 00 00 e8 88 37 cd ff 4c 89 eb 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 20 00 <74> 08 48 89 df e8 4b d1 0a 00 48 8b 1b 48 89 de 48 83 e6 01 31 ff
RSP: 0018:ffffc900013274c0 EFLAGS: 00000246
RAX: 1ffffd400092df3b RBX: ffffea000496f9d8 RCX: ffff888120f54f00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900013276f0 R08: ffffffff819d755a R09: ffffed10241ea9e1
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffea000496f9c0 R14: 1ffffd400092df39 R15: ffffea000496f9c8
 unmap_single_vma mm/memory.c:1551 [inline]
 unmap_vmas+0x37f/0x4f0 mm/memory.c:1583
 exit_mmap+0x2f2/0x5c0 mm/mmap.c:3355
 __mmput+0x95/0x2d0 kernel/fork.c:1153
 mmput+0x59/0x170 kernel/fork.c:1176
 exit_mm kernel/exit.c:539 [inline]
 do_exit+0xbda/0x2a50 kernel/exit.c:850
 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]
 irqentry_exit_to_user_mode+0x4e/0x80 kernel/entry/common.c:287
 irqentry_exit+0x12/0x60 kernel/entry/common.c:375
 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: 0033:0x7f468ff46deb
Code: Unable to access opcode bytes at RIP 0x7f468ff46dc1.
RSP: 002b:00007f468ecf00f0 EFLAGS: 00000217
RAX: 0000000000000001 RBX: 00007f469022ef88 RCX: 00007f4690077719
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f469022ef88
RBP: 00007f469022ef80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f469022ef8c
R13: 0000000000000000 R14: 00007ffdf2efe6c0 R15: 00007ffdf2efe7a8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7477 Comm: syz.6.991 Tainted: G        W         5.10.226-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x5d/0x60 kernel/kcov.c:207
Code: 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 7e 65 8b 05
RSP: 0018:ffffc90000006c30 EFLAGS: 00000046
RAX: ffffffff810d64ea RBX: ffffffff866716c0 RCX: ffff88812b0f4f00
RDX: 0000000000010502 RSI: ffffc90000006f80 RDI: ffffc900000073d8
RBP: ffffc90000006c40 R08: dffffc0000000000 R09: ffffc90000006dc0
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffc900000073d8 R15: ffffc90000006f80
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe61ad8e278 CR3: 000000010c2c8000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000020000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 perf_misc_flags+0x5f/0x130 arch/x86/events/core.c:2746
 perf_prepare_sample+0x146/0x1af0 kernel/events/core.c:7215
 __perf_event_output kernel/events/core.c:7384 [inline]
 perf_event_output_forward+0xdb/0x1b0 kernel/events/core.c:7404
 __perf_event_overflow+0x1c8/0x350 kernel/events/core.c:9060
 perf_swevent_hrtimer+0x3fd/0x560 kernel/events/core.c:10463
 __run_hrtimer kernel/time/hrtimer.c:1585 [inline]
 __hrtimer_run_queues+0x3d7/0xa50 kernel/time/hrtimer.c:1649
 hrtimer_interrupt+0x39a/0x8b0 kernel/time/hrtimer.c:1711
 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:queued_write_lock_slowpath+0x180/0x390 kernel/locking/qrwlock.c:79
Code: 00 00 00 42 0f b6 04 33 84 c0 4c 8b 64 24 08 74 37 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 2a 4c 89 ff e8 c4 48 57 00 eb 20 f3 90 <42> 0f b6 04 33 84 c0 74 15 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 08
RSP: 0018:ffffc90000007480 EFLAGS: 00000206
RAX: 00000000000001ff RBX: 1ffffffff0da83fd RCX: ffffffff8150fdbb
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff86d41fe8
RBP: ffffc90000007530 R08: dffffc0000000000 R09: fffffbfff0da83fe
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000e9a
R13: 00000000000000ff R14: dffffc0000000000 R15: ffffffff86d41fe8
 queued_write_lock include/asm-generic/qrwlock.h:95 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:319
 ___neigh_create+0xccc/0x1a10 net/core/neighbour.c:626
 __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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:5065
Code: 4c 89 e7 e8 b0 d6 f6 fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 14 a2 97 fc fb bf 01 00 00 00 <e8> 89 e6 ff ff fa bf 01 00 00 00 e8 9e a3 97 fc 65 48 8b 1d 26 fd
RSP: 0018:ffffc90000e57340 EFLAGS: 00000246
RAX: 1ffff1102561eb26 RBX: 1ffff920001cae6c RCX: ffffffff84b29800
RDX: 1ffff1102561e9e4 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000e573d0 R08: ffffffff87084008 R09: ffffffff87084018
R10: ffffffff87084010 R11: ffffffff87084003 R12: ffffc90000e57360
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001cae68
 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:zap_pmd_range mm/memory.c:1438 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1464 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1485 [inline]
RIP: 0010:unmap_page_range+0x22c9/0x23b0 mm/memory.c:1506
Code: eb b9 48 8d 8c 24 c0 01 00 00 80 e1 07 80 c1 03 38 c1 0f 8c c8 e6 ff ff 48 8d bc 24 c0 01 00 00 e8 5c bf 0a 00 e9 b6 e6 ff ff <e8> f2 24 cd ff eb 05 e8 eb 24 cd ff 48 8b 5c 24 70 48 3b 9c 24 88
RSP: 0018:ffffc90000e574c0 EFLAGS: 00000246
RAX: 0000000021000000 RBX: ffff88814b836838 RCX: ffff88812b0f4f00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000e576f0 R08: ffffffff819d6dad R09: ffffed102000c2df
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0400000000000000 R14: 0000000021000000 R15: 0000000000000000
 unmap_single_vma mm/memory.c:1551 [inline]
 unmap_vmas+0x37f/0x4f0 mm/memory.c:1583
 exit_mmap+0x2f2/0x5c0 mm/mmap.c:3355
 __mmput+0x95/0x2d0 kernel/fork.c:1153
 mmput+0x59/0x170 kernel/fork.c:1176
 exit_mm kernel/exit.c:539 [inline]
 do_exit+0xbda/0x2a50 kernel/exit.c:850
 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]
 irqentry_exit_to_user_mode+0x4e/0x80 kernel/entry/common.c:287
 irqentry_exit+0x12/0x60 kernel/entry/common.c:375
 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: 0033:0x7f977a636719
Code: Unable to access opcode bytes at RIP 0x7f977a6366ef.
RSP: 002b:00007f97792af038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f977a7edf80 RCX: 00007f977a636719
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007f977a6a932e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f977a7edf80 R15: 00007fffa3627e98