RBP: 00007fb4c55a3ab1 R08: 0000000000000003 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb4c5748fa0 R15: 00007fff796cedc8
watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.9.1022:4273]
Modules linked in:
CPU: 0 PID: 4273 Comm: syz.9.1022 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:run_filter net/packet/af_packet.c:2075 [inline]
RIP: 0010:packet_rcv+0x315/0x11a0 net/packet/af_packet.c:2149
Code: 20 e8 4f e0 8a fd 48 8b 45 c8 4c 8d b0 10 01 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 5e 22 ca fd 4d 8b 36 <31> ff 4c 89 f6 e8 f1 2b 9c fd 4d 85 f6 74 38 e8 17 28 9c fd 49 83
RSP: 0018:ffff8881f6e09340 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103beb9622 RBX: ffff8881b06e3140 RCX: dffffc0000000000
RDX: 0000000000000303 RSI: 0000000000000000 RDI: ffff8881b06e31b0
RBP: ffff8881f6e093c0 R08: dffffc0000000000 R09: ffffed103abc6a95
R10: ffffed103abc6a95 R11: 1ffff1103abc6a94 R12: 000000000000002a
R13: 1ffff110360dc636 R14: ffff8881e08c0540 R15: dffffc0000000000
FS: 00007fb4c3b8a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb4c54ab2ed CR3: 0000000005c0e000 CR4: 00000000003406b0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000000000f0602
Call Trace:
dev_queue_xmit_nit+0x9c8/0xa50 net/core/dev.c:1998
xmit_one net/core/dev.c:3217 [inline]
dev_hard_start_xmit+0x169/0x6f0 net/core/dev.c:3237
sch_direct_xmit+0x24b/0x8b0 net/sched/sch_generic.c:336
qdisc_restart net/sched/sch_generic.c:401 [inline]
__qdisc_run+0x954/0x1370 net/sched/sch_generic.c:409
qdisc_run+0x10a/0x300 include/net/pkt_sched.h:122
__dev_xmit_skb net/core/dev.c:3432 [inline]
__dev_queue_xmit+0x9dd/0x2400 net/core/dev.c:3787
dev_queue_xmit+0x17/0x20 net/core/dev.c:3854
arp_xmit_finish net/ipv4/arp.c:632 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
arp_xmit+0xcd/0x1f0 net/ipv4/arp.c:642
arp_send_dst+0x1fd/0x290 net/ipv4/arp.c:319
arp_solicit+0x77e/0x980 net/ipv4/arp.c:391
neigh_probe net/core/neighbour.c:1022 [inline]
neigh_timer_handler+0xa4a/0xf40 net/core/neighbour.c:1103
call_timer_fn+0x3c/0x380 kernel/time/timer.c:1448
expire_timers kernel/time/timer.c:1493 [inline]
__run_timers+0x81d/0xb60 kernel/time/timer.c:1817
run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1830
__do_softirq+0x236/0x660 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x197/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:539 [inline]
smp_apic_timer_interrupt+0x11d/0x490 arch/x86/kernel/apic/apic.c:1161
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
RIP: 0010:finish_task_switch+0x135/0x590 kernel/sched/core.c:3451
Code: 4c 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 bd 01 00 00 41 c7 45 00 00 00 00 00 4c 89 e7 e8 42 3c e9 02 4d 8d af 00 0a 00 00 <4c> 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 b1 01 00 00 41 80 65
RSP: 0018:ffff8881c77171c0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 00000000ffffffff
RBP: ffff8881c7717210 R08: dffffc0000000000 R09: fffffbfff0c57781
R10: fffffbfff0c57781 R11: 1ffffffff0c57780 R12: ffff8881f6e57b40
R13: ffff8881e6e42980 R14: 0000000000000000 R15: ffff8881e6e41f80
context_switch kernel/sched/core.c:3613 [inline]
__schedule+0xa57/0x12a0 kernel/sched/core.c:4309
preempt_schedule_irq+0x9b/0x110 kernel/sched/core.c:4560
retint_kernel+0x1b/0x1b
RIP: 0010:unwind_next_frame+0x37d/0x760 arch/x86/kernel/unwind_frame.c:269
Code: f6 74 27 43 80 3c 06 00 74 0e 4c 89 ef 49 89 f6 e8 a8 da 5f 00 4c 89 f6 49 c7 45 00 00 00 00 00 4c 8b 75 c0 4c 8b 6d b0 eb 6e <4d> 85 e4 74 28 49 83 c4 20 4c 89 e0 48 c1 e8 03 42 80 3c 00 00 4c
RSP: 0018:ffff8881c7717458 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8881c7717f30 RBX: ffff8881c77174e8 RCX: 0000000000000000
RDX: ffff8881e6e41f80 RSI: 0000000000000000 RDI: ffff8881c7717f48
RBP: ffff8881c77174d8 R08: dffffc0000000000 R09: ffff8881c77174e8
R10: ffffed1038ee2ea9 R11: 1ffff11038ee2e9d R12: 0000000000000000
R13: ffff8881c7717538 R14: 1ffff11038ee2ea7 R15: ffff8881c7717f08
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xaa/0xf0 kernel/stacktrace.c:123
save_stack+0x97/0x560 mm/page_owner.c:122
__reset_page_owner+0x23/0x110 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+0x2a9/0x3a0 mm/page_alloc.c:3085
free_unref_page mm/page_alloc.c:3134 [inline]
free_the_page mm/page_alloc.c:4954 [inline]
__free_pages+0xaa/0x110 mm/page_alloc.c:4962
__vunmap+0x76a/0x8a0 mm/vmalloc.c:2260
__vfree mm/vmalloc.c:2308 [inline]
vfree+0x61/0x90 mm/vmalloc.c:2338
kcov_put kernel/kcov.c:396 [inline]
kcov_close+0x2b/0x50 kernel/kcov.c:495
__fput+0x2a3/0x730 fs/file_table.c:281
____fput+0x15/0x20 fs/file_table.c:314
task_work_run+0x146/0x170 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0xa43/0x2660 kernel/exit.c:861
do_group_exit+0x13e/0x300 kernel/exit.c:984
get_signal+0xdee/0x13d0 kernel/signal.c:2738
do_signal+0xad/0xda0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0xc4/0x1b0 arch/x86/entry/common.c:159
prepare_exit_to_usermode+0x18e/0x1f0 arch/x86/entry/common.c:194
ret_from_intr+0x1c/0x1c
RIP: 0033:0x7fb4c54ab317
Code: Bad RIP value.
RSP: 002b:00007fb4c3b8a058 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffffffffffa8 RBX: 00007fb4c5748fa0 RCX: 00007fb4c55a3ab1
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007fb4c55a3ab1 R08: 0000000000000003 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb4c5748fa0 R15: 00007fff796cedc8
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:109 [inline]
RIP: 0010:smp_call_function_single+0x1da/0x410 kernel/smp.c:311
Code: 5c 02 00 00 89 c3 44 8b 74 24 58 44 89 f6 83 e6 01 31 ff e8 b8 51 0a 00 41 83 e6 01 75 0a e8 5d 4e 0a 00 e9 a6 00 00 00 f3 90 44 24 58 01 00 00 00 0f 84 91 00 00 00 e8 43 4e 0a 00 eb e9 e8
RSP: 0018:ffff8881f5db77e0 EFLAGS: 00000293
RAX: ffffffff8155309d RBX: 0000000000000000 RCX: ffff8881f5d6bf00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881f5db78d0 R08: dffffc0000000000 R09: ffffed103edcb189
R10: ffffed103edcb189 R11: 1ffff1103edcb188 R12: ffff8881f5db7820
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff1103ebb6f00
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffb529df1c CR3: 0000000005c0e000 CR4: 00000000003406a0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
smp_call_function_many+0x6d6/0x990 kernel/smp.c:451
smp_call_function kernel/smp.c:509 [inline]
on_each_cpu+0xa8/0x170 kernel/smp.c:616
text_poke_bp_batch+0xf7/0x260 arch/x86/kernel/alternative.c:1051
arch_jump_label_transform_apply+0x2b/0x50 arch/x86/kernel/jump_label.c:167
__jump_label_update+0x37c/0x3a0 kernel/jump_label.c:449
jump_label_update+0x34c/0x3e0 kernel/jump_label.c:808
static_key_disable_cpuslocked+0xc5/0x1a0 kernel/jump_label.c:207
static_key_disable+0x1a/0x30 kernel/jump_label.c:215
toggle_allocation_gate+0x196/0x230 mm/kfence/core.c:638
process_one_work+0x73b/0xcc0 kernel/workqueue.c:2290
worker_thread+0xa5c/0x13b0 kernel/workqueue.c:2436
kthread+0x31e/0x3a0 kernel/kthread.c:288
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354