watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.1.547:3172]
Modules linked in:
CPU: 1 PID: 3172 Comm: syz.1.547 Tainted: G W 5.15.165-syzkaller-01568-g80dd36dca275 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__unwind_start+0x1d4/0x3a0
Code: 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 b5 a9 7d 00 48 8b 1b 48 83 c3 28 eb 03 <48> 89 eb 49 8d 4f 20 48 89 df 4c 89 ee 4c 89 fa e8 c7 c0 f7 ff 4c
RSP: 0018:ffffc900001cffe0 EFLAGS: 00000246
RAX: ffff8881190ae2c0 RBX: ffffc900001d0095 RCX: dffffc0000000000
RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffffc900001d0088
RBP: ffffc900001d0050 R08: dffffc0000000000 R09: ffffc900001d0060
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881190ae2c0 R14: ffffc900001d0100 R15: ffffc900001d0060
FS: 00007f8e13f416c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e13f20d58 CR3: 0000000126dff000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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: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_slab_alloc+0xb1/0xe0 mm/kasan/common.c:466
kasan_slab_alloc include/linux/kasan.h:217 [inline]
slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
slab_alloc_node mm/slub.c:3240 [inline]
slab_alloc mm/slub.c:3248 [inline]
kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253
kmem_cache_alloc_node include/linux/slab.h:474 [inline]
__alloc_skb+0xbe/0x550 net/core/skbuff.c:416
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+0x1f7/0x4c0 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:511
ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
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
handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
__do_softirq kernel/softirq.c:603 [inline]
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
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 81 7c 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 d9 96 99 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:ffffc90000e97700 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff8881190aedf8 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000e97750 R08: ffffffff81920559 R09: fffffbfff0e53313
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0
R13: ffff8881190ae2c0 R14: 1ffff1103ee27081 R15: ffff8881f7138408
context_switch kernel/sched/core.c:5155 [inline]
__schedule+0xcd4/0x1590 kernel/sched/core.c:6512
preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6688
preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6713
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock+0x60/0x70 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:403 [inline]
fasync_insert_entry+0x223/0x2e0 fs/fcntl.c:954
fasync_add_entry fs/fcntl.c:977 [inline]
fasync_helper+0x52/0xa0 fs/fcntl.c:995
perf_fasync+0x84/0xa0 kernel/events/core.c:6539
ioctl_fioasync fs/ioctl.c:383 [inline]
do_vfs_ioctl+0x1272/0x2a80 fs/ioctl.c:795
__do_sys_ioctl fs/ioctl.c:872 [inline]
__se_sys_ioctl+0x99/0x190 fs/ioctl.c:860
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8e152c7ff9
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:00007f8e13f41038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8e1547ff80 RCX: 00007f8e152c7ff9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f8e1533a296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8e1547ff80 R15: 00007ffe425d7598
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2627 Comm: syz.2.429 Tainted: G W 5.15.165-syzkaller-01568-g80dd36dca275 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:_raw_spin_lock_irqsave+0x0/0x210 kernel/locking/spinlock.c:161
Code: c1 03 38 c1 0f 8c 71 ff ff ff 48 8d 7c 24 20 e8 96 eb cb fc e9 62 ff ff ff e8 cc db f9 ff 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00
RSP: 0018:ffffc90000007600 EFLAGS: 00000046
RAX: 7fffffffffffffff RBX: ffff8881f7029a14 RCX: dffffc0000000000
RDX: ffff888110eccf00 RSI: 0000000000000001 RDI: ffff8881f7029a00
RBP: ffffc90000007710 R08: ffffffff8160e1e5 R09: ffffffff874ce008
R10: ffffffff874ce018 R11: ffffffff874ce010 R12: ffff8881f7029a00
R13: ffff8881f7026e80 R14: ffff8881f7000000 R15: ffff8881f7026e98
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc2cb4a1b8 CR3: 000000013c808000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
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:find_stack lib/stackdepot.c:207 [inline]
RIP: 0010:__stack_depot_save+0x167/0x470 lib/stackdepot.c:304
Code: de eb 03 44 89 ff 48 8b 05 ae e9 ce 04 44 89 f1 81 e1 ff 0f 00 00 48 89 45 b0 48 89 4d b8 4c 8b 24 c8 4c 89 cb 41 89 df eb 04 <4d> 8b 24 24 4d 85 e4 74 2d 45 39 74 24 08 75 f0 41 39 5c 24 0c 75
RSP: 0018:ffffc90000007828 EFLAGS: 00000287
RAX: ffff88823fe40000 RBX: 000000000000000f RCX: 00000000000009e9
RDX: ffffc900000078fc RSI: 0000000000000001 RDI: 0000000000000a20
RBP: ffffc90000007880 R08: 0000000000000003 R09: 000000000000000f
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888129ec1a70
R13: ffffc90000007890 R14: 0000000062b229e9 R15: 000000000000000f
kasan_save_stack mm/kasan/common.c:39 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:433 [inline]
__kasan_slab_alloc+0xc3/0xe0 mm/kasan/common.c:466
kasan_slab_alloc include/linux/kasan.h:217 [inline]
slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
slab_alloc_node mm/slub.c:3240 [inline]
slab_alloc mm/slub.c:3248 [inline]
kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253
kmem_cache_alloc_node include/linux/slab.h:474 [inline]
__alloc_skb+0xbe/0x550 net/core/skbuff.c:416
alloc_skb include/linux/skbuff.h:1183 [inline]
ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:423
ndisc_send_rs+0x26c/0x6a0 net/ipv6/ndisc.c:689
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
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
handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
__do_softirq kernel/softirq.c:603 [inline]
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
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 81 7c 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 d9 96 99 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:ffffc90000ec7120 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888110ecda38 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000ec7170 R08: ffffffff81920559 R09: fffffbfff0e53313
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f70378c0
R13: ffff888110eccf00 R14: 1ffff1103ee07081 R15: ffff8881f7038408
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:constant_test_bit arch/x86/include/asm/bitops.h:207 [inline]
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:135 [inline]
RIP: 0010:PageSwapBacked include/linux/page-flags.h:378 [inline]
RIP: 0010:PageSwapCache include/linux/page-flags.h:422 [inline]
RIP: 0010:free_swap_cache+0xb9/0x230 mm/swap_state.c:291
Code: f6 c3 01 0f 85 76 01 00 00 e8 23 84 c0 ff 4c 89 e3 48 89 df be 08 00 00 00 e8 f3 d7 02 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 <74> 08 48 89 df e8 fd d5 02 00 48 8b 1b 41 be 00 00 08 00 be 00 00
RSP: 0018:ffffc90000ec7400 EFLAGS: 00000246
RAX: 1ffffd40009588e8 RBX: ffffea0004ac4740 RCX: ffffffff81afdfad
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0004ac4740
RBP: ffffc90000ec7430 R08: dffffc0000000000 R09: fffff940009588e9
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0004ac4740
R13: ffffea0004ac4748 R14: dffffc0000000000 R15: 1ffffd40009588e9
free_pages_and_swap_cache+0x63/0xa0 mm/swap_state.c:319
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu+0xd0/0x180 mm/mmu_gather.c:247
zap_pte_range mm/memory.c:1513 [inline]
zap_pmd_range mm/memory.c:1562 [inline]
zap_pud_range mm/memory.c:1591 [inline]
zap_p4d_range mm/memory.c:1612 [inline]
unmap_page_range+0x1c70/0x1ed0 mm/memory.c:1633
unmap_single_vma mm/memory.c:1678 [inline]
unmap_vmas+0x389/0x560 mm/memory.c:1710
exit_mmap+0x3e4/0x940 mm/mmap.c:3215
__mmput+0x95/0x310 kernel/fork.c:1179
mmput+0x5b/0x170 kernel/fork.c:1202
exit_mm kernel/exit.c:554 [inline]
do_exit+0xb9c/0x2ca0 kernel/exit.c:867
do_group_exit+0x141/0x310 kernel/exit.c:1002
get_signal+0x7a3/0x1630 kernel/signal.c:2904
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: 0033:0x7fceeafe2fff
Code: Unable to access opcode bytes at RIP 0x7fceeafe2fd5.
RSP: 002b:00007fcee9c5c038 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007fceeb19af80 RCX: 00007fceeafe2ff9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007fceeb055296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fceeb19af80 R15: 00007fffb3aea888