rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=47dc/1/0x4000000000000000 softirq=16933/16935 fqs=5132
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1237554          2            0
rcu: 	cputime:    18578      33910           45   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=18845 q=2857 ncpus=2)
CPU: 1 PID: 6899 Comm: syz.1.301 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:ieee80211_prepare_and_rx_handle+0x1d30/0x62c0 net/mac80211/rx.c:5020
Code: 8b 1c 24 48 85 db 4c 89 24 24 74 2b 48 81 c3 4b 0f 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 45 2f 00 00 80 3b 00 <0f> 85 06 23 00 00 e8 95 9e 86 f7 eb 05 e8 8e 9e 86 f7 48 8b 44 24
RSP: 0018:ffffc900001f07a0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88807848cf4b RCX: ffff88802d050000
RDX: 0000000000000100 RSI: 0000000000000080 RDI: 0000000000000080
RBP: ffffc900001f09d0 R08: ffff88802d050000 R09: 0000000000000008
R10: 000000000000000c R11: 0000000000000100 R12: ffffc900001f0ac8
R13: ffffc900001f0aa0 R14: ffffc900001f08d0 R15: dffffc0000000000
FS:  00007f6d5f9ee6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000007f65e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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
 </IRQ>
 <TASK>
 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 51 2b cf f6 e8 7c 32 00 f7 fb bf 01 00 00 00 <e8> f1 b4 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc9000cecfaa0 EFLAGS: 00000286
RAX: 77eb2d39e6c7a500 RBX: 0000000000000000 RCX: 77eb2d39e6c7a500
RDX: dffffc0000000000 RSI: ffffffff8acac960 RDI: 0000000000000001
RBP: ffffc9000cecfb50 R08: ffffffff8e8aeeef R09: 1ffffffff1d15ddd
R10: dffffc0000000000 R11: fffffbfff1d15dde R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920019d9f54
 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:get_futex_key+0x4/0x1010 kernel/futex/core.c:222
Code: 74 08 4c 89 ff e8 fc 39 64 00 4d 89 37 eb 07 e8 62 0a 0c 00 31 db 48 89 d8 5b 41 5c 41 5e 41 5f 5d c3 0f 1f 40 00 f3 0f 1e fa <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec c0 00
RSP: 0018:ffffc9000cecfc18 EFLAGS: 00000246
RAX: ffffffff817bc1d7 RBX: ffffc9000cecfc80 RCX: 0000000000000000
RDX: ffffc9000cecfc80 RSI: 0000000000000000 RDI: 00007f6d5ee15fac
RBP: ffffc9000cecfd30 R08: ffffc9000cecfc97 R09: 0000000000000000
R10: ffffc9000cecfc80 R11: fffff520019d9f93 R12: 0000000000000000
R13: 00007f6d5ee15fac R14: 00000000ffffffff R15: 1ffff920019d9f8c
 futex_wake+0x127/0x4f0 kernel/futex/waitwake.c:154
 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: 0033:0x7f6d5eb9c799
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:00007f6d5f9ee0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f6d5ee15fa8 RCX: 00007f6d5eb9c799
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f6d5ee15fac
RBP: 00007f6d5ee15fa0 R08: 0000000000745d1e R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6d5ee16038 R14: 00007ffef40fc0f0 R15: 00007ffef40fc1d8
 </TASK>