rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (8419 ticks this GP) idle=9c6c/1/0x4000000000000000 softirq=54451/54451 fqs=4061 rcu: hardirqs softirqs csw/system rcu: number: 1242622 0 0 rcu: cputime: 19305 33184 33 ==> 52490(ms) rcu: (t=10500 jiffies g=68501 q=2678 ncpus=2) CPU: 1 PID: 14861 Comm: syz.0.2504 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 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 3b f7 c1 f6 65 8b 05 ec b4 68 75 85 c0 74 3c 48 c7 04 24 0e 36 RSP: 0018:ffffc900001f03c0 EFLAGS: 00000206 RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: e2f2d7ee927dfd00 RDX: dffffc0000000000 RSI: ffffffff8acacce0 RDI: 0000000000000001 RBP: ffffc900001f0448 R08: ffffffff911eb5f7 R09: 1ffffffff223d6be R10: dffffc0000000000 R11: fffffbfff223d6bf R12: dffffc0000000000 R13: 1ffff1100be2c74a R14: ffff888026c698e8 R15: 1ffff9200003e078 FS: 00007f3d8661f6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d8661eff8 CR3: 000000005e9e7000 CR4: 00000000003506e0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __ieee80211_queue_skb_to_iface net/mac80211/rx.c:231 [inline] ieee80211_queue_skb_to_iface net/mac80211/rx.c:243 [inline] ieee80211_rx_h_mgmt+0x4a6/0x6e0 net/mac80211/rx.c:3996 ieee80211_rx_handlers+0x65b6/0xb450 net/mac80211/rx.c:4154 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4184 [inline] ieee80211_prepare_and_rx_handle+0x27de/0x6080 net/mac80211/rx.c:5042 ieee80211_rx_for_interface net/mac80211/rx.c:5127 [inline] __ieee80211_rx_handle_packet net/mac80211/rx.c:5300 [inline] ieee80211_rx_list+0x28d4/0x3240 net/mac80211/rx.c:5439 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:lock_is_held_type+0x13e/0x190 kernel/locking/lockdep.c:5832 Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffffc900058df938 EFLAGS: 00000206 RAX: e2f2d7ee927dfd00 RBX: ffff88802b971e00 RCX: e2f2d7ee927dfd00 RDX: 0000000000000000 RSI: ffffffff8acade60 RDI: ffffffff8b1d3ba0 RBP: 0000000000000000 R08: ffffc900058dfb1f R09: 0000000000000000 R10: ffffc900058dfb10 R11: fffff52000b1bf64 R12: 0000000000000002 R13: 0000000000000246 R14: ffffffff8d1321a0 R15: ffff88802b972938 lock_is_held include/linux/lockdep.h:288 [inline] schedule_debug kernel/sched/core.c:5959 [inline] __schedule+0x25c/0x4660 kernel/sched/core.c:6592 preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6868 preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6892 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x111/0x120 kernel/locking/spinlock.c:194 __do_sys_perf_event_open kernel/events/core.c:12968 [inline] __se_sys_perf_event_open+0x1820/0x1d40 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: 0033:0x7f3d8579e159 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:00007f3d8661f028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f3d85a26090 RCX: 00007f3d8579e159 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140 RBP: 00007f3d8583506b R08: 0000000000000002 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3d85a26128 R14: 00007f3d85a26090 R15: 00007ffd01b921f8