------------[ cut here ]------------
WARNING: CPU: 0 PID: 145 at net/mac80211/tx.c:4877 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4877 [inline]
WARNING: CPU: 0 PID: 145 at net/mac80211/tx.c:4877 __ieee80211_beacon_get+0x178a/0x1ff0 net/mac80211/tx.c:5101
Modules linked in:
CPU: 0 PID: 145 Comm: kworker/u4:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: phy8 ieee80211_csa_finalize_work
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4877 [inline]
RIP: 0010:__ieee80211_beacon_get+0x178a/0x1ff0 net/mac80211/tx.c:5101
Code: 24 f8 0f 0b 4f 89 64 2f 04 4f 89 64 2f 0c 43 c6 44 2f 14 f8 e9 19 fe ff ff e8 02 d3 24 f8 0f 0b e9 16 ef ff ff e8 f6 d2 24 f8 <0f> 0b e9 7c f2 ff ff e8 4a c6 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff8954506a RBX: ffff888143fc1e00 RCX: ffff8880186f1dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007af8 R08: ffff8880186f1dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: f8f8f8f8f8f8f8f8
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0b46feed58 CR3: 0000000026457000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5220
 ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
 mac80211_hwsim_beacon_tx+0x104/0x900 drivers/net/wireless/mac80211_hwsim.c:1812
 __iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4ea/0xb60 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 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:__kasan_check_read+0x0/0x10 mm/kasan/shadow.c:31
Code: 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c7 60 15 e0 8b eb 0a 48 c7 c7 bb 05 c6 8b 48 89 de e8 c8 08 f9 07 31 ed eb d7 00 00 cc cc <89> f6 48 8b 0c 24 31 d2 e9 43 ef ff ff 0f 1f 00 89 f6 48 8b 0c 24
RSP: 0018:ffffc900016afb78 EFLAGS: 00000246
RAX: ffffffff8945747f RBX: 0000000000000100 RCX: ffff8880186f1dc0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e6b2828
RBP: 0000000000000000 R08: ffff8880186f1dc0 R09: 0000000000000003
R10: 000000000000000c R11: 0000000000000000 R12: 0000000000000000
R13: ffff88805eb72270 R14: ffff888076fb8e00 R15: ffff88805eb72268
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
 cpumask_test_cpu include/linux/cpumask.h:344 [inline]
 cpu_online include/linux/cpumask.h:895 [inline]
 trace_drv_bss_info_changed net/mac80211/trace.h:393 [inline]
 drv_bss_info_changed net/mac80211/driver-ops.h:175 [inline]
 ieee80211_bss_info_change_notify+0x258/0x550 net/mac80211/main.c:212
 __ieee80211_csa_finalize net/mac80211/cfg.c:3252 [inline]
 ieee80211_csa_finalize+0x4ce/0xb20 net/mac80211/cfg.c:3271
 ieee80211_csa_finalize_work+0xf2/0x130 net/mac80211/cfg.c:3296
 process_one_work+0x867/0xff0 kernel/workqueue.c:2310
 worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 5c                	pop    %r12
   2:	41 5d                	pop    %r13
   4:	41 5e                	pop    %r14
   6:	41 5f                	pop    %r15
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	48 c7 c7 60 15 e0 8b 	mov    $0xffffffff8be01560,%rdi
  11:	eb 0a                	jmp    0x1d
  13:	48 c7 c7 bb 05 c6 8b 	mov    $0xffffffff8bc605bb,%rdi
  1a:	48 89 de             	mov    %rbx,%rsi
  1d:	e8 c8 08 f9 07       	call   0x7f908ea
  22:	31 ed                	xor    %ebp,%ebp
  24:	eb d7                	jmp    0xfffffffd
  26:	00 00                	add    %al,(%rax)
  28:	cc                   	int3
  29:	cc                   	int3
* 2a:	89 f6                	mov    %esi,%esi <-- trapping instruction
  2c:	48 8b 0c 24          	mov    (%rsp),%rcx
  30:	31 d2                	xor    %edx,%edx
  32:	e9 43 ef ff ff       	jmp    0xffffef7a
  37:	0f 1f 00             	nopl   (%rax)
  3a:	89 f6                	mov    %esi,%esi
  3c:	48 8b 0c 24          	mov    (%rsp),%rcx