------------[ cut here ]------------
WARNING: CPU: 1 PID: 11 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 1 PID: 11 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Modules linked in:
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Code: 24 4c 89 e7 e8 ae 73 0b f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 c9 dc d2 f7 0f 0b e9 f6 f7 ff ff e8 bd dc d2 f7 <0f> 0b e9 48 fb ff ff e8 b1 dc d2 f7 48 c7 c7 70 c2 fa 8d 4c 89 e6
RSP: 0018:ffffc900001e0a10 EFLAGS: 00010246
RAX: ffffffff89af95b3 RBX: ffffffff89af83b6 RCX: ffff88813fe73b80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88813fe73b80 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888069f36258
R13: dffffc0000000000 R14: ffff888069f36790 R15: ffff88805795d424
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff9e138ea90 CR3: 000000001bae6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000003800 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5472
 ieee80211_beacon_get include/net/mac80211.h:5335 [inline]
 mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
 __iterate_interfaces+0x243/0x500 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:2147
 __run_hrtimer kernel/time/hrtimer.c:1747 [inline]
 __hrtimer_run_queues+0x560/0xd70 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 handle_softirqs+0x2a1/0x930 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:___slab_alloc+0x393/0x1240 mm/slub.c:3107
Code: 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 f7 44 24 70 00 02 00 00 0f 85 de 02 00 00 f7 c5 00 02 00 00 74 01 fb 49 83 7d 18 00 <0f> 84 6c 05 00 00 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 48 8b
RSP: 0018:ffffc900001079e0 EFLAGS: 00000286
RAX: 246050592dadae00 RBX: ffff888140a1a280 RCX: 246050592dadae00
RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffffff8adf0c20
RBP: 0000000000000246 R08: ffffffff90af332f R09: 1ffffffff215e665
R10: dffffc0000000000 R11: fffffbfff215e666 R12: ffff88813fe73b80
R13: ffff8880b8f44400 R14: ffffffff7fff0000 R15: ffff8880b8f44420
 __slab_alloc mm/slub.c:3240 [inline]
 slab_alloc_node mm/slub.c:3325 [inline]
 kmem_cache_alloc_node+0x1e5/0x320 mm/slub.c:3404
 __alloc_skb+0xfc/0x7e0 net/core/skbuff.c:505
 alloc_skb include/linux/skbuff.h:1271 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
 nsim_dev_trap_report_work+0x28f/0xaf0 drivers/net/netdevsim/dev.c:851
 process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 c7 44 24 70 00 00 	movq   $0x0,0x70(%rsp)
   7:	00 00
   9:	9c                   	pushf
   a:	8f 44 24 70          	pop    0x70(%rsp)
   e:	f7 44 24 70 00 02 00 	testl  $0x200,0x70(%rsp)
  15:	00
  16:	0f 85 de 02 00 00    	jne    0x2fa
  1c:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	49 83 7d 18 00       	cmpq   $0x0,0x18(%r13)
* 2a:	0f 84 6c 05 00 00    	je     0x59c <-- trapping instruction
  30:	48 c7 44 24 70 00 00 	movq   $0x0,0x70(%rsp)
  37:	00 00
  39:	9c                   	pushf
  3a:	8f 44 24 70          	pop    0x70(%rsp)
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b