rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-....: (1 GPs behind) idle=e42c/1/0x4000000000000000 softirq=17472/17473 fqs=2095
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number: 16487201          0            0
rcu: 	cputime:     6311      46255            0   ==> 52550(ms)
rcu: 	(detected by 0, t=10506 jiffies, g=18073, q=868 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7362 Comm: syz.3.484 Not tainted 6.6.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:check_preemption_disabled+0x37/0x110 lib/smp_processor_id.c:55
Code: 04 25 28 00 00 00 48 89 44 24 08 65 8b 05 8d 5c 96 75 65 8b 0d 82 5c 96 75 f7 c1 ff ff ff 7f 74 1f 65 48 8b 0c 25 28 00 00 00 <48> 3b 4c 24 08 0f 85 c4 00 00 00 48 83 c4 10 5b 41 5e 41 5f 5d c3
RSP: 0018:ffffc900001f0930 EFLAGS: 00000006
RAX: 0000000000000001 RBX: ffff8880b8f28808 RCX: cab6536a07a54f00
RDX: 0000000000010100 RSI: ffffffff8afc66a0 RDI: ffffffff8afc6660
RBP: 0000000000000000 R08: ffffffff8e4a882f R09: 1ffffffff1c95105
R10: dffffc0000000000 R11: fffffbfff1c95106 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88802dad8000 R15: ffffffff8c7d1a38
FS:  00007fb7c8c006c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4f76c00020 CR3: 000000002fdd0000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irqtime_account_irq+0x67/0x1c0 kernel/sched/cputime.c:63
 account_hardirq_exit include/linux/vtime.h:159 [inline]
 __irq_exit_rcu+0x8d/0x190 kernel/softirq.c:658
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x53/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:723
RIP: 0010:rcu_read_unlock_special+0x88/0x4c0 kernel/rcu/tree_plugin.h:682
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 39 58 93 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900001f0b00 EFLAGS: 00000206
RAX: cab6536a07a54f00 RBX: 1ffff9200003e168 RCX: cab6536a07a54f00
RDX: dffffc0000000000 RSI: ffffffff8aaab9c0 RDI: ffffffff8afc66c0
RBP: ffffc900001f0bf0 R08: ffffffff90da352f R09: 1ffffffff21b46a5
R10: dffffc0000000000 R11: fffffbfff21b46a6 R12: ffffffff8cd35400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
 __rcu_read_unlock+0x7c/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:818 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x15a/0x180 net/mac80211/util.c:804
 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
 __run_hrtimer kernel/time/hrtimer.c:1755 [inline]
 __hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
 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+0xc7/0x190 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:qlink_free mm/kasan/quarantine.c:166 [inline]
RIP: 0010:qlist_free_all+0x63/0xe0 mm/kasan/quarantine.c:185
Code: 49 89 c4 49 8b 2f 49 63 84 24 c0 00 00 00 49 29 c7 4c 89 e7 4c 89 fe e8 ab e8 ff ff 66 90 4c 89 f8 48 c1 e8 03 42 c6 04 28 fb <48> 8d 15 00 00 00 00 4c 89 e7 4c 89 fe e8 1b 1d ff ff 48 85 ed 75
RSP: 0018:ffffc9000f5a7bd0 EFLAGS: 00000a06
RAX: 1ffff1100b7cf800 RBX: ffffc9000f5a7c08 RCX: 0000000000000000
RDX: ffff88805be7c000 RSI: ffff88805be7c000 RDI: ffff888017842140
RBP: ffff888141b0d540 R08: 0000000000000001 R09: 0000000000000000
R10: ffff888023769b40 R11: ffffed10171e8461 R12: ffff888017842140
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88805be7c000
 kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook+0x6e/0x4d0 mm/slab.h:767
 slab_alloc_node mm/slub.c:3485 [inline]
 slab_alloc mm/slub.c:3493 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3500 [inline]
 kmem_cache_alloc+0x11e/0x2e0 mm/slub.c:3509
 kmem_cache_zalloc include/linux/slab.h:711 [inline]
 alloc_empty_file+0x9e/0x1d0 fs/file_table.c:206
 alloc_file+0x5c/0x600 fs/file_table.c:293
 alloc_file_pseudo+0x17e/0x200 fs/file_table.c:336
 sock_alloc_file+0xb7/0x280 net/socket.c:469
 sock_map_fd net/socket.c:494 [inline]
 __sys_socket+0x13d/0x1a0 net/socket.c:1724
 __do_sys_socket net/socket.c:1729 [inline]
 __se_sys_socket net/socket.c:1727 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1727
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb7c7d8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb7c8c00038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fb7c7fb5fa0 RCX: 00007fb7c7d8ebe9
RDX: 0000000000000000 RSI: 0000000400000002 RDI: 0000000000000010
RBP: 00007fb7c7e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb7c7fb6038 R14: 00007fb7c7fb5fa0 R15: 00007ffd313f8c28
 </TASK>