watchdog: BUG: soft lockup - CPU#0 stuck for 245s! [syz.3.31:418]
Modules linked in:
CPU: 0 PID: 418 Comm: syz.3.31 Not tainted 6.1.93-syzkaller-00101-g04212acc42d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:update_stack_state+0x86/0x460 arch/x86/kernel/unwind_frame.c:208
Code: 09 e8 8e fb 84 00 48 8b 7d c8 48 8b 07 48 85 c0 74 08 48 05 a8 00 00 00 eb 21 49 8d 5f 38 48 89 d8 48 c1 e8 03 42 80 3c 30 00 <74> 08 48 89 df e8 60 fb 84 00 48 8b 03 48 83 c0 10 48 89 45 98 48
RSP: 0018:ffffc90000007530 EFLAGS: 00000246
RAX: 1ffff92000000ed7 RBX: ffffc900000076b8 RCX: ffffffff879a2000
RDX: dffffc0000000000 RSI: ffffc9000b737390 RDI: ffffc900000076d8
RBP: ffffc900000075e8 R08: ffffc90000007768 R09: 0000000000000013
R10: ffffc90000007770 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc900000076d0 R14: dffffc0000000000 R15: ffffc90000007680
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f494a907178 CR3: 000000000700f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
 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:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:333
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768
 slab_alloc_node mm/slub.c:3421 [inline]
 kmem_cache_alloc_node+0x18a/0x2d0 mm/slub.c:3466
 __alloc_skb+0xcc/0x2d0 net/core/skbuff.c:505
 alloc_skb include/linux/skbuff.h:1290 [inline]
 nlmsg_new include/net/netlink.h:991 [inline]
 br_mdb_notify+0x2d8/0x9b0 net/bridge/br_mdb.c:568
 br_multicast_del_pg+0x4e2/0xb50 net/bridge/br_multicast.c:691
 br_multicast_find_del_pg net/bridge/br_multicast.c:723 [inline]
 br_multicast_port_group_expired+0x716/0x870 net/bridge/br_multicast.c:753
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:unwind_next_frame+0x43/0x700 arch/x86/kernel/unwind_frame.c:273
Code: 00 00 fc ff df 49 89 ff 49 c1 ef 03 41 0f b6 04 17 84 c0 0f 85 82 05 00 00 41 83 3e 00 0f 84 67 05 00 00 49 8d 5e 58 48 89 d8 <48> c1 e8 03 48 89 45 a8 80 3c 10 00 74 12 48 89 df e8 a7 02 85 00
RSP: 0018:ffffc9000b737198 EFLAGS: 00000202
RAX: ffffc9000b737278 RBX: ffffc9000b737278 RCX: ffffffff879a2000
RDX: dffffc0000000000 RSI: ffffffff812e8850 RDI: ffffc9000b737220
RBP: ffffc9000b737210 R08: ffffc9000b737308 R09: 000000000000000c
R10: ffffc9000b737310 R11: dffffc0000000001 R12: ffff88811580d100
R13: ffffffff8165c680 R14: ffffc9000b737220 R15: 1ffff920016e6e44
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:147
 __reset_page_owner+0x54/0x190 mm/page_owner.c:168
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5803
 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
 __vfree mm/vmalloc.c:2776 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2807
 kcov_put kernel/kcov.c:428 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x3ab/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:875
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7fb44a97def9
Code: Unable to access opcode bytes at 0x7fb44a97decf.
RSP: 002b:00007fb44b83e038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fb44ab35f80 RCX: 00007fb44a97def9
RDX: 0000000020000780 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007fb44a9f09f6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb44ab35f80 R15: 00007ffc2147a918
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 37 Comm: kworker/u4:2 Not tainted 6.1.93-syzkaller-00101-g04212acc42d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:smp_call_function_many_cond+0x86c/0x930 kernel/smp.c:998
Code: df 75 0a e8 86 9b 09 00 e9 2f ff ff ff f3 90 42 0f b6 04 3b 84 c0 75 14 41 f7 06 01 00 00 00 0f 84 12 ff ff ff e8 64 9b 09 00 <eb> e1 44 89 f1 80 e1 07 80 c1 03 38 c1 7c df 4c 89 f7 e8 2d c8 50
RSP: 0018:ffffc9000026f840 EFLAGS: 00000293
RAX: ffffffff816c09ec RBX: 1ffff1103edc7a99 RCX: ffff888109955100
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000026f958 R08: ffffffff816c09b5 R09: ffffed103ede71fb
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000800000000 R14: ffff8881f6e3d4c8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc7b3d36018 CR3: 000000000700f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1334 [inline]
 text_poke_bp_batch+0x1e9/0x730 arch/x86/kernel/alternative.c:1534
 text_poke_flush arch/x86/kernel/alternative.c:1725 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1732
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x36a/0x380 kernel/jump_label.c:455
 jump_label_update+0x3af/0x450 kernel/jump_label.c:801
 static_key_disable_cpuslocked+0xcd/0x1b0 kernel/jump_label.c:207
 static_key_disable+0x1a/0x30 kernel/jump_label.c:215
 toggle_allocation_gate+0x3b4/0x450 mm/kfence/core.c:818
 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299
 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
NMI backtrace for cpu 1
CPU: 1 PID: 751 Comm: syz.3.81 Tainted: G             L     6.1.93-syzkaller-00101-g04212acc42d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:asm_sysvec_irq_work+0x3/0x20 arch/x86/include/asm/idtentry.h:679
Code: d9 ff e9 d0 03 00 00 0f 01 ca fc 6a ff e8 c5 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7 e8 a5 49 d9 ff e9 b0 03 00 00 0f 01 ca <fc> 6a ff e8 a5 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7 e8 75 4e
RSP: 0000:ffffc900001b0788 EFLAGS: 00000806
RAX: 1ffff9200003610f RBX: ffffc900001b0878 RCX: ffffffff879a2000
RDX: dffffc0000000000 RSI: ffffffff83180ad3 RDI: ffffc900001b0840
RBP: ffffc900001b0830 R08: ffffc900001b0928 R09: 0000000000000006
R10: ffffc900001b0930 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffffff8165c680 R14: ffffc900001b0840 R15: 1ffff92000036108
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1776cac048 CR3: 00000001237d1000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <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:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 __do_kmalloc_node mm/slab_common.c:957 [inline]
 __kmalloc_node_track_caller+0xb3/0x1e0 mm/slab_common.c:977
 kmalloc_reserve net/core/skbuff.c:446 [inline]
 __alloc_skb+0x125/0x2d0 net/core/skbuff.c:515
 alloc_skb include/linux/skbuff.h:1290 [inline]
 wg_packet_send_keepalive+0x60/0x1c0 drivers/net/wireguard/send.c:226
 wg_expired_send_persistent_keepalive+0x53/0x80 drivers/net/wireguard/timers.c:141
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__schedule+0x0/0x1560 kernel/sched/core.c:6627
Code: 89 25 d4 f2 4a 02 eb 05 e8 1d b7 57 fc 48 c7 c7 e0 34 c1 87 e8 f1 e4 01 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc cc <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 00
RSP: 0000:ffffc90000d07038 EFLAGS: 00000246
RAX: 1ffff110231e88f1 RBX: 1ffff920001a0e0c RCX: ffffffff85200900
RDX: 1ffffffff0f6d408 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000d070d8 R08: ffffffff87b6a040 R09: ffffffff87b6a048
R10: ffffffff87b6a058 R11: ffffffff87b6a050 R12: ffffc90000d07060
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001a0e08
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:preempt_schedule_common+0x1c/0xf0 kernel/sched/core.c:6924
Code: 5d c3 e8 07 00 00 00 eb cc e8 50 68 fb ff 55 48 89 e5 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df eb 0d 48 f7 03 08 00 00 00 <0f> 84 bb 00 00 00 65 ff 05 df 66 e4 7a 65 8b 05 d8 66 e4 7a 25 ff
RSP: 0000:ffffc90000d071d8 EFLAGS: 00000202
RAX: 1ffff110231e8798 RBX: ffff888118f43cc0 RCX: ffffffff851e077e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888118f43cc0
RBP: ffffc90000d071f0 R08: dffffc0000000000 R09: ffffed10231e8799
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920001a0e44
R13: 000000110c245000 R14: ffffffff851e06b9 R15: dffffc0000000000
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6940
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x5f/0x70 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 zap_pte_range mm/memory.c:1535 [inline]
 zap_pmd_range mm/memory.c:1594 [inline]
 zap_pud_range mm/memory.c:1623 [inline]
 zap_p4d_range mm/memory.c:1644 [inline]
 unmap_page_range+0x22e5/0x2620 mm/memory.c:1665
 unmap_single_vma mm/memory.c:1711 [inline]
 unmap_vmas+0x4e4/0x660 mm/memory.c:1751
 exit_mmap+0x2e7/0xbe0 mm/mmap.c:3335
 __mmput+0x95/0x310 kernel/fork.c:1298
 mmput+0x56/0x170 kernel/fork.c:1321
 exit_mm kernel/exit.c:566 [inline]
 do_exit+0xb29/0x2b80 kernel/exit.c:862
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f860657def9
Code: Unable to access opcode bytes at 0x7f860657decf.
RSP: 002b:00007f86073e9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffff2 RBX: 00007f8606735f80 RCX: 00007f860657def9
RDX: 0000000000000000 RSI: 0000000040082404 RDI: 0000000000000003
RBP: 00007f86065f09f6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8606735f80 R15: 00007ffedbaab268
 </TASK>