------------[ cut here ]------------
WARNING: CPU: 0 PID: 9732 at net/mac80211/tx.c:5033 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
WARNING: CPU: 0 PID: 9732 at net/mac80211/tx.c:5033 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5444
Modules linked in:
CPU: 0 PID: 9732 Comm: syz.7.802 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5444
Code: f7 4c 89 ef e8 b0 a4 c2 f7 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 7b c6 84 f7 0f 0b e9 61 f8 ff ff e8 6f c6 84 f7 <0f> 0b e9 85 fb ff ff e8 63 c6 84 f7 48 c7 c7 40 50 64 8e 4c 89 e6
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff8a021ee1 RBX: dffffc0000000000 RCX: ffff888028130000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888028130000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88806495e440
R13: ffff88802e479024 R14: ffff88806495e930 R15: ffff88802e479000
FS:  00007fe2309f66c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c33df0b CR3: 000000005ef51000 CR4: 00000000003506f0
DR0: ffffffffffffffff DR1: 8000000000000000 DR2: 00000000000003ff
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5571
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3bd/0x770 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x225/0x4c0 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:1754 [inline]
 __hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
 hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
 handle_softirqs+0x27d/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 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:release_pages+0x34e/0x2300 mm/swap.c:992
Code: 1d 00 00 48 89 df be 04 00 00 00 e8 4c bd 24 00 45 31 ff f0 ff 0b 0f 94 c3 41 0f 94 c7 bf 02 00 00 00 44 89 fe e8 72 49 cc ff <31> ff 44 89 fe e8 68 49 cc ff 84 db 0f 84 cc 01 00 00 49 8d 5e 08
RSP: 0018:ffffc900040b7440 EFLAGS: 00000297
RAX: ffffffff81ba9e6e RBX: ffffea0001316700 RCX: 0000000000000002
RDX: ffff888028130000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900040b7550 R08: ffffea00013167f7 R09: 1ffffd4000262cfe
R10: dffffc0000000000 R11: fffff94000262cff R12: 0000000000000070
R13: 0000000000000000 R14: ffffea00013167c0 R15: 0000000000000000
 folios_put include/linux/mm.h:1548 [inline]
 folio_batch_move_lru+0x571/0x660 mm/swap.c:216
 folio_add_lru+0x41c/0xce0 mm/swap.c:509
 shmem_get_folio_gfp+0x1124/0x2b40 mm/shmem.c:2077
 shmem_fault+0x1b8/0x820 mm/shmem.c:2248
 __do_fault+0x13b/0x4d0 mm/memory.c:4244
 do_read_fault mm/memory.c:4638 [inline]
 do_fault mm/memory.c:4775 [inline]
 do_pte_missing mm/memory.c:3689 [inline]
 handle_pte_fault mm/memory.c:5047 [inline]
 __handle_mm_fault mm/memory.c:5188 [inline]
 handle_mm_fault+0x3945/0x4a50 mm/memory.c:5353
 faultin_page mm/gup.c:868 [inline]
 __get_user_pages+0x604/0x1580 mm/gup.c:1167
 populate_vma_page_range+0x2c1/0x380 mm/gup.c:1593
 __mm_populate+0x260/0x390 mm/gup.c:1696
 mm_populate include/linux/mm.h:3383 [inline]
 vm_mmap_pgoff+0x2da/0x3f0 mm/util.c:561
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe23279ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe2309f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fe232a15fa0 RCX: 00007fe23279ce59
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fe232832e6f R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe232a16038 R14: 00007fe232a15fa0 R15: 00007ffd17111b98
 </TASK>
----------------
Code disassembly (best guess):
   0:	1d 00 00 48 89       	sbb    $0x89480000,%eax
   5:	df be 04 00 00 00    	fistpll 0x4(%rsi)
   b:	e8 4c bd 24 00       	call   0x24bd5c
  10:	45 31 ff             	xor    %r15d,%r15d
  13:	f0 ff 0b             	lock decl (%rbx)
  16:	0f 94 c3             	sete   %bl
  19:	41 0f 94 c7          	sete   %r15b
  1d:	bf 02 00 00 00       	mov    $0x2,%edi
  22:	44 89 fe             	mov    %r15d,%esi
  25:	e8 72 49 cc ff       	call   0xffcc499c
* 2a:	31 ff                	xor    %edi,%edi <-- trapping instruction
  2c:	44 89 fe             	mov    %r15d,%esi
  2f:	e8 68 49 cc ff       	call   0xffcc499c
  34:	84 db                	test   %bl,%bl
  36:	0f 84 cc 01 00 00    	je     0x208
  3c:	49 8d 5e 08          	lea    0x8(%r14),%rbx