------------[ cut here ]------------
WARNING: CPU: 0 PID: 4278 at net/mac80211/tx.c:4981 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4981 [inline]
WARNING: CPU: 0 PID: 4278 at net/mac80211/tx.c:4981 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5382
Modules linked in:
CPU: 0 PID: 4278 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4981 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5382
Code: f7 4c 89 ef e8 60 37 01 f8 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 8b 6a c8 f7 0f 0b e9 61 f8 ff ff e8 7f 6a c8 f7 <0f> 0b e9 85 fb ff ff e8 73 6a c8 f7 48 c7 c7 40 13 fd 8e 4c 89 e6
RSP: 0018:ffffc90000007a48 EFLAGS: 00010246
RAX: ffffffff89b9fe21 RBX: dffffc0000000000 RCX: ffff88807e08bc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88807e08bc00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888024cd2208
R13: ffff888055dcb024 R14: ffff888024cd2740 R15: ffff888055dcb000
FS:  000055559349b500(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd29ebe000 CR3: 000000005aa15000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5509
 ieee80211_beacon_get include/net/mac80211.h:5338 [inline]
 mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2097
 __iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:788
 ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2153
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xbc/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 <e8> 9f 64 17 f7 65 8b 05 30 01 c1 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc90003ea7740 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: 11ffa207b03d3800
RDX: dffffc0000000000 RSI: ffffffff8aac1cc0 RDI: 0000000000000001
RBP: ffffc90003ea77d0 R08: ffffffff91b622e7 R09: 1ffffffff236c45c
R10: dffffc0000000000 R11: fffffbfff236c45d R12: dffffc0000000000
R13: ffffea00011e19c8 R14: ffff88807adfa050 R15: 1ffff920007d4ee8
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 unlock_page_lruvec_irqrestore include/linux/memcontrol.h:1611 [inline]
 release_pages+0x2092/0x2340 mm/swap.c:1032
 __pagevec_release+0x6d/0xe0 mm/swap.c:1055
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 shmem_undo_range+0x808/0x21d0 mm/shmem.c:955
 shmem_truncate_range mm/shmem.c:1071 [inline]
 shmem_evict_inode+0x225/0x9f0 mm/shmem.c:1180
 evict+0x4b2/0x9d0 fs/inode.c:703
 do_unlinkat+0x388/0x580 fs/namei.c:4452
 __do_sys_unlink fs/namei.c:4493 [inline]
 __se_sys_unlink fs/namei.c:4491 [inline]
 __x64_sys_unlink+0x45/0x50 fs/namei.c:4491
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa9433a8007
Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe439f88f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa9433a8007
RDX: 00007ffe439f8920 RSI: 00007ffe439f89b0 RDI: 00007ffe439f89b0
RBP: 00007ffe439f89b0 R08: 00007ffe439f99b0 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe439f9a40
R13: 00007fa943437363 R14: 000000000004f411 R15: 00007ffe439f9a80
 </TASK>
----------------
Code disassembly (best guess):
   0:	c7 44 24 20 00 00 00 	movl   $0x0,0x20(%rsp)
   7:	00
   8:	9c                   	pushf
   9:	8f 44 24 20          	pop    0x20(%rsp)
   d:	f7 44 24 20 00 02 00 	testl  $0x200,0x20(%rsp)
  14:	00
  15:	41 c6 04 07 f8       	movb   $0xf8,(%r15,%rax,1)
  1a:	75 4b                	jne    0x67
  1c:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 9f 64 17 f7       	call   0xf71764ce <-- trapping instruction
  2f:	65 8b 05 30 01 c1 75 	mov    %gs:0x75c10130(%rip),%eax        # 0x75c10166
  36:	85 c0                	test   %eax,%eax
  38:	74 3c                	je     0x76
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	04 24                	add    $0x24,%al
  3e:	0e                   	(bad)
  3f:	36                   	ss