watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.3.1169:4093]
Modules linked in:
CPU: 1 PID: 4093 Comm: syz.3.1169 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:skb_network_header include/linux/skbuff.h:2549 [inline]
RIP: 0010:ipv6_hdr include/linux/ipv6.h:100 [inline]
RIP: 0010:ip6_packet_match net/ipv6/netfilter/ip6_tables.c:57 [inline]
RIP: 0010:ip6t_do_table+0x41e/0x1800 net/ipv6/netfilter/ip6_tables.c:308
Code: 00 4c 89 64 24 08 c7 84 24 6c 01 00 00 00 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 75 cc b0 fd 4c 8b 2b <48> 8b 9c 24 18 01 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0
RSP: 0018:ffff8881f6f09740 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103954541a RBX: ffff8881caa2a0d0 RCX: ffff8881e4dd0fc0
RDX: 0000000000000302 RSI: ffff8881e8bc6008 RDI: ffff8881e14c1018
RBP: ffff8881f6f09938 R08: ffffffff83e35346 R09: ffff8881f6f09890
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e14c12b0
R13: ffff8881cbad8000 R14: ffff8881e14c1040 R15: dffffc0000000000
FS:  00007f134c5816c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd67f6d0b8 CR3: 00000001cafce000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ip6t_mangle_out net/ipv6/netfilter/ip6table_mangle.c:52 [inline]
 ip6table_mangle_hook+0x24b/0x750 net/ipv6/netfilter/ip6table_mangle.c:74
 nf_hook_entry_hookfn include/linux/netfilter.h:136 [inline]
 nf_hook_slow+0xae/0x1e0 net/netfilter/core.c:507
 nf_hook include/linux/netfilter.h:258 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ndisc_send_skb+0xbd7/0xc30 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3953
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 75 12 43 fd 48 83 3d cd 2c 9a 01 00 74 29 48 89 df e8 e3 e7 fa fc 66 90 fb bf 01 00 00 00 <e8> 66 d4 f3 fc 65 8b 05 ab 7e b1 7b 85 c0 74 02 5b c3 e8 34 45 af
RSP: 0018:ffff8881e58ff030 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6f57b40 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881e58ff090 R08: ffffffff81799989 R09: fffffbfff0c96e5b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6f57b40
R13: ffff8881e4dd0fc0 R14: dffffc0000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3347 [inline]
 finish_task_switch+0x130/0x590 kernel/sched/core.c:3447
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:unwind_next_frame+0x0/0x1ea0 arch/x86/kernel/unwind_orc.c:413
Code: eb 02 31 c0 5b 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 95 4c 89 f7 e8 db 62 64 00 eb 8b 66 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 c0 02
RSP: 0018:ffff8881e58ff2f8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: ffff8881e4dd0f01 RBX: ffff8881e58ff300 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff8881e58ff300
RBP: ffff8881e58ff390 R08: ffffffff8153b472 R09: ffff8881e58ff350
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e4dd0fc0
R13: ffffffff8153b310 R14: ffff8881e58ff3e0 R15: 0000000000000000
 arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack+0x95/0x880 mm/page_owner.c:122
 __reset_page_owner+0x1f/0x100 mm/page_owner.c:149
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1176 [inline]
 free_pcp_prepare mm/page_alloc.c:1233 [inline]
 free_unref_page_prepare+0x297/0x380 mm/page_alloc.c:3085
 free_unref_page_list+0x10a/0x590 mm/page_alloc.c:3154
 release_pages+0xad8/0xb20 mm/swap.c:842
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:189 [inline]
 tlb_flush_mmu mm/mmu_gather.c:196 [inline]
 tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:277
 exit_mmap+0x2dc/0x520 mm/mmap.c:3193
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f134d2ffd39
Code: Bad RIP value.
RSP: 002b:00007f134c581048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f134d48dfa0 RCX: 00007f134d2ffd39
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f134d380766 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f134d48dfa0 R15: 00007fff9c8b13b8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5560 Comm: syz.1.1546 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:preempt_count_sub+0x0/0x160 kernel/sched/core.c:4035
Code: ff 48 c7 c1 84 98 4b 86 80 e1 07 80 c1 03 38 c1 7c 80 48 c7 c7 84 98 4b 86 e8 ec 3d 4f 00 e9 6f ff ff ff 0f 1f 80 00 00 00 00 <41> 56 53 89 fb 48 c7 c0 c0 99 e9 86 48 c1 e8 03 49 be 00 00 00 00
RSP: 0018:ffff8881f6e09a58 EFLAGS: 00000046
RAX: 0000000000000001 RBX: ffff8881f6e4b600 RCX: dffffc0000000000
RDX: 0000000000010103 RSI: 0000000000000046 RDI: 0000000000000001
RBP: ffff8881f6e4b620 R08: ffffffff8155114a R09: ffff8881e39da960
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e4b600
R13: 0000000000000002 R14: 0000000000000046 R15: 0000000000000046
FS:  00007f6d7297a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d7387a350 CR3: 00000001e0514000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
 _raw_spin_unlock_irqrestore+0x57/0x80 kernel/locking/spinlock.c:191
 hrtimer_interrupt+0x4a9/0x890 kernel/time/hrtimer.c:1715
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1122 [inline]
 smp_apic_timer_interrupt+0x110/0x460 arch/x86/kernel/apic/apic.c:1147
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
RIP: 0010:compound_head include/linux/page-flags.h:176 [inline]
RIP: 0010:virt_to_head_page include/linux/mm.h:851 [inline]
RIP: 0010:__ksize+0x47/0xf0 mm/slub.c:4039
Code: b8 00 00 00 80 7f 77 00 00 48 01 c7 48 81 ef 00 00 00 80 48 c1 ef 06 48 83 e7 c0 48 b9 00 00 00 00 00 ea ff ff 48 8b 44 0f 08 <a8> 01 75 4e 48 01 cf 48 8b 47 08 48 89 f9 a8 01 75 48 48 f7 01 00
RSP: 0018:ffff8881f6e09c60 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: ffffea000729f001 RBX: ffff8881ca7c3000 RCX: ffffea0000000000
RDX: 0000000000000102 RSI: ffffffff8a929000 RDI: 000000000729f0c0
RBP: ffff8881ca7c3000 R08: ffffffff819442fd R09: ffffed10394f8601
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881cbe49500 R14: 0000000000000000 R15: dffffc0000000000
 ksize+0x3a/0x60 mm/slab_common.c:1809
 __alloc_skb+0xda/0x4d0 net/core/skbuff.c:217
 alloc_skb include/linux/skbuff.h:1080 [inline]
 wg_packet_send_keepalive+0x5d/0x1c0 drivers/net/wireguard/send.c:226
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 75 12 43 fd 48 83 3d cd 2c 9a 01 00 74 29 48 89 df e8 e3 e7 fa fc 66 90 fb bf 01 00 00 00 <e8> 66 d4 f3 fc 65 8b 05 ab 7e b1 7b 85 c0 74 02 5b c3 e8 34 45 af
RSP: 0018:ffff8881ca1078d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6e57b40 RCX: dffffc0000000000
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881ca107930 R08: ffffffff81799989 R09: fffffbfff0c96e5b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e57b40
R13: ffff8881ee0aaf40 R14: dffffc0000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3347 [inline]
 finish_task_switch+0x130/0x590 kernel/sched/core.c:3447
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:futex_wake_op include/linux/sched/mm.h:49 [inline]
RIP: 0010:do_futex+0x18d2/0x19f0 kernel/futex.c:3899
Code: ff e8 32 8a 0b 00 4c 89 f7 e8 ea 75 e1 ff 48 63 44 24 18 e9 b8 fb ff ff e8 1b 8a 0b 00 4c 89 f7 e8 d3 75 e1 ff e9 3e fd ff ff <48> 8d 8c 24 00 02 00 00 80 e1 07 80 c1 03 38 c1 0f 8c 00 e8 ff ff
RSP: 0018:ffff8881ca107b80 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000004 RBX: 1ffff11039420fb0 RCX: 0000000000040000
RDX: ffffc9000395a000 RSI: 0000000000001ad6 RDI: 0000000000001ad7
RBP: ffff8881ca107de8 R08: 00007fff315ad0b0 R09: 0000000000000000
R10: ffff8881ee0aaf40 R11: 0000000000000004 R12: dffffc0000000000
R13: 0000000000000081 R14: dffffc0000000000 R15: 000000007297a6c0
 __do_sys_futex kernel/futex.c:3949 [inline]
 __se_sys_futex+0x355/0x470 kernel/futex.c:3917
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f6d736f8d39
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:00007f6d7297a0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f6d73886fa8 RCX: 00007f6d736f8d39
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f6d73886fac
RBP: 00007f6d73886fa0 R08: 00007fff315ad0b0 R09: 00007f6d7297a6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6d73886fac
R13: 000000000000000b R14: 00007fff31558290 R15: 00007fff31558378