------------[ cut here ]------------
WARNING: CPU: 0 PID: 15168 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 0 PID: 15168 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Modules linked in:
CPU: 0 PID: 15168 Comm: syz.6.2725 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Code: ff ff ff e8 30 36 e4 f7 0f 0b 48 8b 7c 24 20 e8 d4 a4 7f fe e9 dd e9 ff ff e8 1a 36 e4 f7 0f 0b e9 f1 ee ff ff e8 0e 36 e4 f7 <0f> 0b e9 61 f2 ff ff e8 02 36 e4 f7 48 c7 c7 f0 7e fa 8d 4c 89 f6
RSP: 0000:ffffc900000078a0 EFLAGS: 00010246
RAX: ffffffff899c9a82 RBX: 0000000000000000 RCX: ffff888052320000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007aa8 R08: ffff888052320000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: 1ffff92000000f2c
R13: dffffc0000000000 R14: ffff88807e346258 R15: ffff8880793bc800
FS:  00007fd02137d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00001fffffffff40 CR3: 000000007a6e4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 3a810b1eb6134bdc DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x5b/0x4d0 net/mac80211/tx.c:5352
 ieee80211_beacon_get include/net/mac80211.h:5264 [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:1752 [inline]
 __hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 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:seqcount_lockdep_reader_access+0x17b/0x1c0 include/linux/seqlock.h:105
Code: 00 4d 85 e4 75 16 e8 04 8f 0f 00 eb 15 e8 fd 8e 0f 00 e8 98 01 a6 08 4d 85 e4 74 ea e8 ee 8e 0f 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 66 43 c7 44 3e 09 00 00 43 c6 44 3e 0b 00
RSP: 0000:ffffc90004226f00 EFLAGS: 00000293
RAX: ffffffff817141a2 RBX: 0000000000000000 RCX: ffff888052320000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004226fa8 R08: dffffc0000000000 R09: fffffbfff215c45d
R10: fffffbfff215c45d R11: 1ffffffff215c45c R12: 0000000000000200
R13: dffffc0000000000 R14: 1ffff92000844de0 R15: dffffc0000000000
 ktime_get_coarse_real_ts64+0x36/0x120 kernel/time/timekeeping.c:2261
 current_time+0x86/0x2b0 fs/inode.c:2538
 file_update_time+0x98/0x340 fs/inode.c:2172
 __generic_file_write_iter+0xe1/0x430 mm/filemap.c:3923
 generic_file_write_iter+0xab/0x2e0 mm/filemap.c:4006
 __kernel_write_iter+0x26d/0x630 fs/read_write.c:517
 dump_emit_page fs/coredump.c:950 [inline]
 dump_user_range+0x3ea/0x7f0 fs/coredump.c:977
 elf_core_dump+0x2f77/0x3490 fs/binfmt_elf.c:2354
 do_coredump+0x15ff/0x22b0 fs/coredump.c:824
 get_signal+0x10aa/0x1350 kernel/signal.c:2857
 arch_do_signal_or_restart+0xb0/0x1230 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:316
 exc_general_protection+0x164/0x1f0 arch/x86/kernel/traps.c:729
 asm_exc_general_protection+0x22/0x30 arch/x86/include/asm/idtentry.h:602
RIP: 0033:0x7fd02058ebb1
Code: 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 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:0000200000000120 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd0207d6090 RCX: 00007fd02058eba9
RDX: 0000200000000180 RSI: 0000200000000120 RDI: 0000000040000000
RBP: 00007fd020611e19 R08: 0000200000000880 R09: 0000200000000880
R10: 0000200000000240 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fd0207d6128 R14: 00007fd0207d6090 R15: 00007ffcefd67d68
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	4d 85 e4             	test   %r12,%r12
   3:	75 16                	jne    0x1b
   5:	e8 04 8f 0f 00       	call   0xf8f0e
   a:	eb 15                	jmp    0x21
   c:	e8 fd 8e 0f 00       	call   0xf8f0e
  11:	e8 98 01 a6 08       	call   0x8a601ae
  16:	4d 85 e4             	test   %r12,%r12
  19:	74 ea                	je     0x5
  1b:	e8 ee 8e 0f 00       	call   0xf8f0e
  20:	fb                   	sti
  21:	48 c7 04 24 0e 36 e0 	movq   $0x45e0360e,(%rsp)
  28:	45
* 29:	4b c7 04 3e 00 00 00 	movq   $0x0,(%r14,%r15,1) <-- trapping instruction
  30:	00
  31:	66 43 c7 44 3e 09 00 	movw   $0x0,0x9(%r14,%r15,1)
  38:	00
  39:	43 c6 44 3e 0b 00    	movb   $0x0,0xb(%r14,%r15,1)