rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10481 ticks this GP) idle=cc5c/1/0x4000000000000000 softirq=14470/14474 fqs=2653
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1601680        313            0
rcu: 	cputime:    19448      33030           34   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=15085 q=1289 ncpus=2)
CPU: 0 PID: 6235 Comm: syz.0.104 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:rcu_read_unlock_special+0x83/0x4d0 kernel/rcu/tree_plugin.h:763
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 6e 02 92 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007b20 EFLAGS: 00000206
RAX: c824eb4405783200 RBX: 1ffff92000000f68 RCX: c824eb4405783200
RDX: dffffc0000000000 RSI: ffffffff8acac9e0 RDI: ffffffff8b1c8fa0
RBP: ffffc90000007c00 R08: ffffffff8e8b19af R09: 1ffffffff1d16335
R10: dffffc0000000000 R11: fffffbfff1d16336 R12: ffffffff8d137300
R13: dffffc0000000000 R14: ffff8880b8e3cf50 R15: 1ffff110171c79ea
FS:  00007f5a169756c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5a15e15fa0 CR3: 000000002e259000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __rcu_read_unlock+0x7c/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:818 [inline]
 ieee80211_rx_napi+0x225/0x3d0 net/mac80211/rx.c:5461
 ieee80211_rx include/net/mac80211.h:4971 [inline]
 ieee80211_handle_queued_frames+0x106/0x1a0 net/mac80211/main.c:319
 tasklet_action_common+0x302/0x4d0 kernel/softirq.c:809
 handle_softirqs+0x280/0x820 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:kvm_kick_cpu+0x78/0xb0 arch/x86/kernel/kvm.c:1036
Code: b2 a4 00 48 c7 c3 d0 19 02 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 28 0f b7 0b b8 05 00 00 00 31 db 0f 01 c1 <5b> 41 5e 41 5f c3 e8 9d 7b 4c 00 89 de 48 c7 c7 20 df f9 8c e8 df
RSP: 0018:ffffc9000cc47b20 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffffc9000d47a000 RSI: 0000000000011c35 RDI: 0000000000011c36
RBP: 0000000000000000 R08: ffffc90000a2738b R09: 1ffff92000144e71
R10: dffffc0000000000 R11: fffff52000144e72 R12: 1ffff11047ffc200
R13: dffffc0000000000 R14: ffffffff8ca77a38 R15: dffffc0000000000
 pv_kick kernel/locking/qspinlock_paravirt.h:543 [inline]
 __pv_queued_spin_unlock_slowpath+0x198/0x2a0 kernel/locking/qspinlock_paravirt.h:543
 __raw_callee_save___pv_queued_spin_unlock_slowpath+0x15/0x30
 .slowpath+0x9/0x1a
 pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_unlock arch/x86/include/asm/qspinlock.h:57 [inline]
 do_raw_spin_unlock+0x121/0x230 kernel/locking/spinlock_debug.c:141
 __raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_unlock+0x1e/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 futex_wake+0x41d/0x4f0 kernel/futex/waitwake.c:183
 do_futex+0x35d/0x3e0 kernel/futex/syscalls.c:139
 __do_sys_futex kernel/futex/syscalls.c:211 [inline]
 __se_sys_futex+0x3a9/0x440 kernel/futex/syscalls.c:192
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5a15b9cdd9
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:00007f5a169750e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f5a15e15fa8 RCX: 00007f5a15b9cdd9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f5a15e15fac
RBP: 00007f5a15e15fa0 R08: 0000000000745af4 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a15e16038 R14: 00007fff561475f0 R15: 00007fff561476d8
 </TASK>