rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (9521 ticks this GP) idle=8fa4/1/0x4000000000000000 softirq=38717/38719 fqs=5049 rcu: hardirqs softirqs csw/system rcu: number: 1253557 36 0 rcu: cputime: 21679 30809 39 ==> 52510(ms) rcu: (t=10502 jiffies g=46241 q=3502 ncpus=2) CPU: 0 PID: 11871 Comm: syz.3.1632 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xc0/0x120 kernel/locking/spinlock.c:194 Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 2b 88 ca f6 65 8b 05 bc b0 71 75 85 c0 74 3c 48 c7 04 24 0e 36 RSP: 0018:ffffc90000007380 EFLAGS: 00000206 RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: 01137eb5b2592f00 RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: 0000000000000001 RBP: ffffc90000007410 R08: ffffffff911cd5f7 R09: 1ffffffff2239abe R10: dffffc0000000000 R11: fffffbfff2239abf R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888078f386b8 R15: 1ffff92000000e70 FS: 00007f115e81a6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f115e819ff8 CR3: 0000000055c10000 CR4: 00000000003506f0 DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] wiphy_work_queue+0x151/0x1a0 net/wireless/core.c:1639 __ieee80211_queue_skb_to_iface net/mac80211/rx.c:232 [inline] ieee80211_queue_skb_to_iface net/mac80211/rx.c:243 [inline] ieee80211_rx_h_mgmt+0x4f8/0x6f0 net/mac80211/rx.c:3994 ieee80211_rx_handlers+0x65f9/0xb4a0 net/mac80211/rx.c:4152 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4182 [inline] ieee80211_prepare_and_rx_handle+0x29ab/0x62c0 net/mac80211/rx.c:5040 ieee80211_rx_for_interface net/mac80211/rx.c:5125 [inline] __ieee80211_rx_handle_packet net/mac80211/rx.c:5298 [inline] ieee80211_rx_list+0x295e/0x32d0 net/mac80211/rx.c:5437 ieee80211_rx_napi+0x1b2/0x3d0 net/mac80211/rx.c:5460 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:preempt_schedule_irq+0xba/0x150 kernel/sched/core.c:7010 Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 6f bf 01 00 00 00 e8 a1 ea cb f6 e8 4c fd fc f6 fb bf 01 00 00 00 f1 b4 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f RSP: 0018:ffffc90011abf960 EFLAGS: 00000286 RAX: 01137eb5b2592f00 RBX: 0000000000000000 RCX: 01137eb5b2592f00 RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: 0000000000000001 RBP: ffffc90011abfa00 R08: ffffffff911cd5ff R09: 1ffffffff2239abf R10: dffffc0000000000 R11: fffffbfff2239ac0 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92002357f2c irqentry_exit+0x67/0x70 kernel/entry/common.c:438 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:preempt_count_sub+0x65/0x160 kernel/sched/core.c:5885 Code: ff ff ff 7f 39 cf 7f 25 81 ff ff 00 00 00 0f 93 c1 84 c0 0f 95 c0 08 c8 74 53 65 8b 05 3c 28 a7 7e f7 df 65 01 3d 33 28 a7 7e <5b> 5d c3 e8 c3 84 ca 02 85 c0 74 f4 48 c7 c0 20 9b 8b 8e 48 c1 e8 RSP: 0018:ffffc90011abfac8 EFLAGS: 00000297 RAX: 0000000080000001 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffffc90014d61000 RSI: 0000000000003554 RDI: 00000000ffffffff RBP: ffffc90011abfbd0 R08: ffffffff911cd5ff R09: 1ffffffff2239abf R10: dffffc0000000000 R11: fffffbfff2239ac0 R12: 0000000000000000 R13: dffffc0000000000 R14: 1ffff92002357f60 R15: 1ffff92002357f60 smp_call_function_single+0x406/0x5a0 kernel/smp.c:652 task_function_call kernel/events/core.c:120 [inline] perf_install_in_context+0x5be/0x920 kernel/events/core.c:2959 __do_sys_perf_event_open kernel/events/core.c:12957 [inline] __se_sys_perf_event_open+0x1836/0x1c50 kernel/events/core.c:12609 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f115d99ce59 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:00007f115e81a028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f115dc16180 RCX: 00007f115d99ce59 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000008c0 RBP: 00007f115da32d6f R08: 0000000000000002 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007f115dc16218 R14: 00007f115dc16180 R15: 00007fff15c0d6b8