------------[ cut here ]------------
WARNING: CPU: 0 PID: 13172 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 0 PID: 13172 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 0 PID: 13172 Comm: syz.0.1962 Not tainted 6.6.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 fe 37 d5 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 89 12 98 f7 0f 0b e9 f6 f7 ff ff e8 7d 12 98 f7 <0f> 0b e9 48 fb ff ff e8 71 12 98 f7 48 c7 c7 c0 00 24 8e 4c 89 e6
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff89ed78a3 RBX: ffffffff89ed66a6 RCX: ffff888078d41e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888078d41e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88806c68a3c0
R13: dffffc0000000000 R14: ffff88806c68a8b0 R15: ffff888078e48424
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbb298e56c0 CR3: 000000000cb30000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5569
 ieee80211_beacon_get include/net/mac80211.h:5438 [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:1755 [inline]
 __hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
 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:stack_trace_consume_entry+0x56/0x270 kernel/stacktrace.c:89
Code: 84 c0 0f 85 04 01 00 00 44 8b 4f 10 4c 8d 77 08 4d 89 f5 49 c1 ed 03 41 0f b6 44 15 00 84 c0 0f 85 1d 01 00 00 45 3b 0e 73 3a <48> 8d 5f 0c 49 89 df 49 c1 ef 03 41 0f b6 04 17 84 c0 0f 85 42 01
RSP: 0018:ffffc90005306eb8 EFLAGS: 00000283
RAX: 0000000000000000 RBX: ffffc90005306fc0 RCX: ffff888078d41e00
RDX: dffffc0000000000 RSI: ffffffff8151188b RDI: ffffc90005306fc0
RBP: 1ffff92000a60dfa R08: ffffc90005306fd0 R09: 000000000000000d
R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff8151188b
R13: 1ffff92000a60df9 R14: ffffc90005306fc8 R15: ffffc90005306f08
 arch_stack_walk+0x138/0x190 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 save_stack+0xf7/0x1f0 mm/page_owner.c:128
 __reset_page_owner+0x4e/0x190 mm/page_owner.c:149
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1154 [inline]
 free_unref_page_prepare+0x7ce/0x8e0 mm/page_alloc.c:2336
 free_unref_page_list+0xbe/0x860 mm/page_alloc.c:2475
 release_pages+0x1fa0/0x2220 mm/swap.c:1022
 __folio_batch_release+0x71/0xe0 mm/swap.c:1042
 folio_batch_release include/linux/pagevec.h:83 [inline]
 shmem_undo_range+0x5d0/0x1a40 mm/shmem.c:1027
 shmem_truncate_range mm/shmem.c:1136 [inline]
 shmem_evict_inode+0x273/0xa70 mm/shmem.c:1265
 evict+0x486/0x870 fs/inode.c:705
 __dentry_kill+0x431/0x650 fs/dcache.c:611
 dentry_kill+0xb8/0x290 fs/dcache.c:-1
 dput+0xfe/0x1e0 fs/dcache.c:918
 __fput+0x5e5/0x970 fs/file_table.c:392
 task_work_run+0x1ce/0x250 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x90b/0x23c0 kernel/exit.c:883
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1024
 get_signal+0x12fc/0x1400 kernel/signal.c:2902
 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+0xb1/0x140 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: 0033:0x7fe8a9a4f920
Code: Unable to access opcode bytes at 0x7fe8a9a4f8f6.
RSP: 002b:00007fe8a79b4178 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 00007fe8a9db6270 RCX: 00007fe8a9b8ebe9
RDX: 00007fe8a79b4180 RSI: 00007fe8a79b42b0 RDI: 000000000000000b
RBP: 00007fe8a9c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fe8a9db6308 R14: 00007fe8a9db6270 R15: 00007fff912b1178
 </TASK>
----------------
Code disassembly (best guess):
   0:	84 c0                	test   %al,%al
   2:	0f 85 04 01 00 00    	jne    0x10c
   8:	44 8b 4f 10          	mov    0x10(%rdi),%r9d
   c:	4c 8d 77 08          	lea    0x8(%rdi),%r14
  10:	4d 89 f5             	mov    %r14,%r13
  13:	49 c1 ed 03          	shr    $0x3,%r13
  17:	41 0f b6 44 15 00    	movzbl 0x0(%r13,%rdx,1),%eax
  1d:	84 c0                	test   %al,%al
  1f:	0f 85 1d 01 00 00    	jne    0x142
  25:	45 3b 0e             	cmp    (%r14),%r9d
  28:	73 3a                	jae    0x64
* 2a:	48 8d 5f 0c          	lea    0xc(%rdi),%rbx <-- trapping instruction
  2e:	49 89 df             	mov    %rbx,%r15
  31:	49 c1 ef 03          	shr    $0x3,%r15
  35:	41 0f b6 04 17       	movzbl (%r15,%rdx,1),%eax
  3a:	84 c0                	test   %al,%al
  3c:	0f                   	.byte 0xf
  3d:	85 42 01             	test   %eax,0x1(%rdx)