------------[ cut here ]------------
WARNING: CPU: 0 PID: 6299 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 0 PID: 6299 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 0 PID: 6299 Comm: syz.1.99 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:5031 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Code: 24 4c 89 e7 e8 9e 22 d4 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 99 fd 96 f7 0f 0b e9 f6 f7 ff ff e8 8d fd 96 f7 <0f> 0b e9 48 fb ff ff e8 81 fd 96 f7 48 c7 c7 60 fd 23 8e 4c 89 e6
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff89ee8d43 RBX: ffffffff89ee7b46 RCX: ffff888022cc9e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888022cc9e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888059d123c0
R13: dffffc0000000000 R14: ffff888059d128b0 R15: ffff88805a5b1024
FS:  00007f068aa1a6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c32401c CR3: 000000002fd98000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5569
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
 __run_hrtimer kernel/time/hrtimer.c:1750 [inline]
 __hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1814
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
 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:lock_is_held_type+0x50/0x190 kernel/locking/lockdep.c:5818
Code: 3d 10 4c dc 03 00 0f 84 03 01 00 00 65 8b 05 8f 1d 94 75 85 c0 0f 85 f4 00 00 00 65 48 8b 1d 57 4b 95 75 83 bb dc 0a 00 00 00 <0f> 85 df 00 00 00 41 89 f7 49 89 fe 48 c7 04 24 00 00 00 00 9c 8f
RSP: 0018:ffffc9000b7e7078 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888022cc9e00 RCX: ffff888022cc9e00
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8cd2ff80
RBP: 00000000ffffffff R08: ffffea0001720277 R09: 1ffffd40002e404e
R10: dffffc0000000000 R11: fffff940002e404f R12: 0000000000001000
R13: dffffc0000000000 R14: 0000000000001000 R15: 0000000000001000
 lock_is_held include/linux/lockdep.h:288 [inline]
 __might_resched+0xa7/0x610 kernel/sched/core.c:10170
 generic_perform_write+0x3c5/0x5b0 mm/filemap.c:4034
 shmem_file_write_iter+0xfb/0x120 mm/shmem.c:2884
 __kernel_write_iter+0x274/0x670 fs/read_write.c:517
 dump_emit_page fs/coredump.c:957 [inline]
 dump_user_range+0x3f6/0x800 fs/coredump.c:984
 elf_core_dump+0x3114/0x36e0 fs/binfmt_elf.c:2184
 do_coredump+0x1755/0x2480 fs/coredump.c:833
 get_signal+0x1133/0x1400 kernel/signal.c:2888
 arch_do_signal_or_restart+0x96/0x780 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xf6/0x180 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:315
 exc_page_fault+0x8f/0x110 arch/x86/mm/fault.c:1524
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f0689b8eed1
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:fffffffffffffe70 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f0689de6090 RCX: 00007f0689b8eec9
RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000008000
RBP: 00007f0689c11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f0689de6128 R14: 00007f0689de6090 R15: 00007ffde8070818
 </TASK>
----------------
Code disassembly (best guess):
   0:	3d 10 4c dc 03       	cmp    $0x3dc4c10,%eax
   5:	00 0f                	add    %cl,(%rdi)
   7:	84 03                	test   %al,(%rbx)
   9:	01 00                	add    %eax,(%rax)
   b:	00 65 8b             	add    %ah,-0x75(%rbp)
   e:	05 8f 1d 94 75       	add    $0x75941d8f,%eax
  13:	85 c0                	test   %eax,%eax
  15:	0f 85 f4 00 00 00    	jne    0x10f
  1b:	65 48 8b 1d 57 4b 95 	mov    %gs:0x75954b57(%rip),%rbx        # 0x75954b7a
  22:	75
  23:	83 bb dc 0a 00 00 00 	cmpl   $0x0,0xadc(%rbx)
* 2a:	0f 85 df 00 00 00    	jne    0x10f <-- trapping instruction
  30:	41 89 f7             	mov    %esi,%r15d
  33:	49 89 fe             	mov    %rdi,%r14
  36:	48 c7 04 24 00 00 00 	movq   $0x0,(%rsp)
  3d:	00
  3e:	9c                   	pushf
  3f:	8f                   	.byte 0x8f