rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=9e9/1/0x4000000000000000 softirq=32448/32457 fqs=5167 
	(t=10501 jiffies g=42709 q=2064)
NMI backtrace for cpu 0
CPU: 0 PID: 11915 Comm: syz.1.950 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <IRQ>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x3a2/0x3d0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x22d/0x380 kernel/rcu/tree_stall.h:349
 print_cpu_stall+0x31f/0x5f0 kernel/rcu/tree_stall.h:633
 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
 rcu_pending kernel/rcu/tree.c:3936 [inline]
 rcu_sched_clock_irq+0x6ec/0x1120 kernel/rcu/tree.c:2619
 update_process_times+0x193/0x200 kernel/time/timer.c:2021
 tick_sched_handle kernel/time/tick-sched.c:254 [inline]
 tick_sched_timer+0x37d/0x560 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4b0/0xb60 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x397/0x8b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:ieee80211_drop_unencrypted_mgmt net/mac80211/rx.c:2468 [inline]
RIP: 0010:ieee80211_rx_h_mgmt_check+0x21d/0x1100 net/mac80211/rx.c:3219
Code: 00 74 08 48 89 df e8 f2 1f 6e f8 4c 89 74 24 10 48 8b 1b 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 d6 0b 00 00 44 0f b7 33 <49> 83 c4 40 4c 89 e0 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 d7 0b 00
RSP: 0018:ffffc90000007570 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888149f75050 RCX: ffff888029128000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000003
RBP: dffffc0000000000 R08: ffff888036372f97 R09: 1ffff11006c6e5f2
R10: dffffc0000000000 R11: ffffed1006c6e5f3 R12: ffff8880355478c0
R13: ffffc90000007ae0 R14: 0000000000000080 R15: 1ffff92000000f5d
 ieee80211_rx_handlers+0x5486/0x8670 net/mac80211/rx.c:3960
 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3996 [inline]
 ieee80211_prepare_and_rx_handle+0x2276/0x51d0 net/mac80211/rx.c:4710
 __ieee80211_rx_handle_packet net/mac80211/rx.c:4870 [inline]
 ieee80211_rx_list+0x1b35/0x25e0 net/mac80211/rx.c:4997
 ieee80211_rx_napi+0x17f/0x390 net/mac80211/rx.c:5020
 ieee80211_rx include/net/mac80211.h:4573 [inline]
 ieee80211_handle_queued_frames+0x104/0x1a0 net/mac80211/main.c:237
 tasklet_action_common+0x2ad/0x410 kernel/softirq.c:806
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6799
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 15 d7 88 f7 e8 80 bf b5 f7 fb bf 01 00 00 00 <e8> d5 b5 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc9000325f8e0 EFLAGS: 00000282
RAX: 642d83f72bd9d500 RBX: 0000000000000000 RCX: 642d83f72bd9d500
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: 0000000000000001
RBP: ffffc9000325f990 R08: ffff8880b903b30b R09: 1ffff11017207661
R10: dffffc0000000000 R11: ffffed1017207662 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200064bf1c
 irqentry_exit+0x63/0x70 kernel/entry/common.c:435
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:virt_to_head_page include/linux/mm.h:911 [inline]
RIP: 0010:___cache_free+0x25/0x120 mm/slub.c:3511
Code: 00 00 00 00 90 41 57 41 56 41 54 53 48 83 ec 10 49 89 d6 48 89 f3 49 89 ff 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 48 89 f7 <e8> 46 8e 78 ff 49 89 c4 49 c1 ec 06 49 83 e4 c0 48 b9 00 00 00 00
RSP: 0018:ffffc9000325fa58 EFLAGS: 00000282
RAX: 642d83f72bd9d500 RBX: ffff888067f30000 RCX: dffffc0000000000
RDX: ffffffff81be5757 RSI: ffff888067f30000 RDI: ffff888067f30000
RBP: ffffc9000325fd10 R08: ffff88802e18adc0 R09: 00000000800c0001
R10: dffffc0000000000 R11: ffffed1017207662 R12: ffffea0000000000
R13: ffff888036b9c000 R14: ffffffff81be5757 R15: ffff888144bf4140
 qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3225 [inline]
 slab_alloc mm/slub.c:3233 [inline]
 kmem_cache_alloc+0x15d/0x280 mm/slub.c:3238
 sock_alloc_inode+0x17/0xb0 net/socket.c:305
 alloc_inode fs/inode.c:261 [inline]
 new_inode_pseudo+0x5f/0x210 fs/inode.c:1001
 sock_alloc net/socket.c:628 [inline]
 __sock_create+0x128/0x910 net/socket.c:1460
 sock_create net/socket.c:1552 [inline]
 __sys_socketpair+0x232/0x540 net/socket.c:1656
 __do_sys_socketpair net/socket.c:1705 [inline]
 __se_sys_socketpair net/socket.c:1702 [inline]
 __x64_sys_socketpair+0x97/0xb0 net/socket.c:1702
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f014475a159
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:00007f0142991028 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f01449e2090 RCX: 00007f014475a159
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 00007f01447f106b R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f01449e2128 R14: 00007f01449e2090 R15: 00007ffff4577888
 </TASK>