------------[ cut here ]------------
WARNING: CPU: 0 PID: 10917 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 10917 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 10917 Comm: syz.8.1375 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Code: 2a 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 0d c0 2a f8 0f 0b e9 03 ef ff ff e8 01 c0 2a f8 <0f> 0b e9 76 f2 ff ff e8 15 89 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900000078e0 EFLAGS: 00010246
RAX: ffffffff894e5f9f RBX: ffff888016e5e298 RCX: ffff888061151dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007b08 R08: ffff888061151dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888077bcf800
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f2c
FS:  00007fb85e6ed6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fd22ff8 CR3: 000000006289c000 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:5202
 ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
 mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
 __iterate_interfaces+0x243/0x500 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+0x4eb/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x339/0x830 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:rcu_read_lock_held_common kernel/rcu/update.c:306 [inline]
RIP: 0010:rcu_read_lock_held+0x0/0x40 kernel/rcu/update.c:309
Code: 0e 8f e8 43 05 5a 00 eb cf 90 0f b6 05 b5 ba 25 0c c3 0f 1f 84 00 00 00 00 00 e8 eb df 00 00 e9 c6 e1 00 00 66 0f 1f 44 00 00 <53> e8 7a cf 57 08 85 c0 74 26 31 db e8 7f b2 00 00 84 c0 74 20 e8
RSP: 0018:ffffc90002def6f0 EFLAGS: 00000246
RAX: ffffffff819e3a5a RBX: dffffc0000000000 RCX: ffff888061151dc0
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffea00017016b7 R09: 1ffffd40002e02d6
R10: dffffc0000000000 R11: fffff940002e02d7 R12: 1ffff920005bdf05
R13: ffffc90002def828 R14: 0000000000000000 R15: ffff8880255e0370
 xa_entry include/linux/xarray.h:1197 [inline]
 xas_next_entry+0x202/0x3d0 include/linux/xarray.h:1656
 next_map_page mm/filemap.c:3296 [inline]
 filemap_map_pages+0xecd/0x13b0 mm/filemap.c:3352
 do_fault_around mm/memory.c:4243 [inline]
 do_read_fault mm/memory.c:4258 [inline]
 do_fault mm/memory.c:4392 [inline]
 handle_pte_fault mm/memory.c:4650 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x25bc/0x4410 mm/memory.c:4883
 faultin_page mm/gup.c:976 [inline]
 __get_user_pages+0x94b/0x11e0 mm/gup.c:1197
 populate_vma_page_range+0x213/0x290 mm/gup.c:1529
 __mm_populate+0x275/0x3b0 mm/gup.c:1638
 mm_populate include/linux/mm.h:2646 [inline]
 vm_mmap_pgoff+0x212/0x2d0 mm/util.c:556
 ksys_mmap_pgoff+0x140/0x790 mm/mmap.c:1635
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb860491eb9
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:00007fb85e6ed028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fb86070cfa0 RCX: 00007fb860491eb9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fb8604ffc1f R08: ffffffffffffffff R09: 00000000b2570000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb86070d038 R14: 00007fb86070cfa0 R15: 00007ffcf9af9468
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	e8 43 05 5a 00       	call   0x5a0548
   5:	eb cf                	jmp    0xffffffd6
   7:	90                   	nop
   8:	0f b6 05 b5 ba 25 0c 	movzbl 0xc25bab5(%rip),%eax        # 0xc25bac4
   f:	c3                   	ret
  10:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  17:	00
  18:	e8 eb df 00 00       	call   0xe008
  1d:	e9 c6 e1 00 00       	jmp    0xe1e8
  22:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
* 28:	53                   	push   %rbx <-- trapping instruction
  29:	e8 7a cf 57 08       	call   0x857cfa8
  2e:	85 c0                	test   %eax,%eax
  30:	74 26                	je     0x58
  32:	31 db                	xor    %ebx,%ebx
  34:	e8 7f b2 00 00       	call   0xb2b8
  39:	84 c0                	test   %al,%al
  3b:	74 20                	je     0x5d
  3d:	e8                   	.byte 0xe8