rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10498 ticks this GP) idle=54e4/1/0x4000000000000000 softirq=12864/12866 fqs=3692
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1244822          2            0
rcu: 	cputime:    18867      33612           31   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=12445 q=1908 ncpus=2)
CPU: 1 PID: 6394 Comm: syz.2.186 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:kcov_remote_start+0x1b5/0x7e0 kernel/kcov.c:933
Code: b1 67 06 00 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 0f 85 7c 03 00 00 f7 c3 00 02 00 00 74 05 fb eb 02 0f 0b <48> 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 4d 8b
RSP: 0018:ffffc900001f0970 EFLAGS: 00000206
RAX: 530a6c2c85624e00 RBX: 0000000000000246 RCX: 530a6c2c85624e00
RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: ffffffff8b1d3260
RBP: ffffc900001f0c10 R08: ffffffff8e8c866f R09: 1ffffffff1d190cd
R10: dffffc0000000000 R11: fffffbfff1d190ce R12: 0000000000000000
R13: ffffffff81877aaa R14: ffff8880187ada00 R15: 0000000000000000
FS:  00007fde35ad96c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b85a2ba2f CR3: 00000000192f5000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kcov_remote_start_common include/linux/kcov.h:50 [inline]
 ieee80211_rx_list+0x5a6/0x3240 net/mac80211/rx.c:5421
 ieee80211_rx_napi+0x1ae/0x3c0 net/mac80211/rx.c:5462
 ieee80211_rx include/net/mac80211.h:4971 [inline]
 ieee80211_handle_queued_frames+0x105/0x190 net/mac80211/main.c:319
 tasklet_action_common+0x2d4/0x460 kernel/softirq.c:809
 handle_softirqs+0x27d/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 da c5 cf f6 48 89 df e8 82 99 d0 f6 e8 1d a1 f4 f6 fb bf 01 00 00 00 <e8> 92 a7 c3 f6 65 8b 05 f3 75 6a 75 85 c0 74 02 5b c3 e8 a0 5a 67
RSP: 0018:ffffc90018b6fbb0 EFLAGS: 00000282
RAX: 530a6c2c85624e00 RBX: ffff8880187ae408 RCX: 530a6c2c85624e00
RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: 0000000000000001
RBP: ffffc90018b6fc78 R08: ffffffff8e8c866f R09: 1ffffffff1d190cd
R10: dffffc0000000000 R11: fffffbfff1d190ce R12: dffffc0000000000
R13: ffff8880187aef88 R14: ffff8880187ae408 R15: ffff8880187ae370
 task_work_run+0x197/0x260 kernel/task_work.c:241
 get_signal+0x11da/0x1390 kernel/signal.c:2687
 arch_do_signal_or_restart+0xc2/0x7b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fde34b9e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fde35ad9028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 000000000000003a RBX: 00007fde34e25fa0 RCX: 00007fde34b9e0d9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007fde34c35024 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fde34e26038 R14: 00007fde34e25fa0 R15: 00007ffc8184b098
 </TASK>