syzbot

------------[ cut here ]------------
WARNING: CPU: 1 PID: 5923 at net/mac80211/tx.c:5041 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5041 [inline]
WARNING: CPU: 1 PID: 5923 at net/mac80211/tx.c:5041 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5036 [inline]
WARNING: CPU: 1 PID: 5923 at net/mac80211/tx.c:5041 __ieee80211_beacon_get+0x14f4/0x1720 net/mac80211/tx.c:5470
Modules linked in:
CPU: 1 UID: 0 PID: 5923 Comm: syz-executor190 Not tainted 6.15.0-rc3-syzkaller-00001-g9d7a0577c9db #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5041 [inline]
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5036 [inline]
RIP: 0010:__ieee80211_beacon_get+0x14f4/0x1720 net/mac80211/tx.c:5470
Code: 24 89 df 89 ee e8 ec 65 cb f6 40 38 eb 72 a2 e8 c2 6b cb f6 4c 89 e7 e8 5a 2e 25 f7 45 31 e4 e9 9b fe ff ff e8 ad 6b cb f6 90 <0f> 0b 90 e9 3e f6 ff ff 48 89 c6 48 c7 c7 40 69 53 90 48 89 44 24
RSP: 0018:ffffc90000a08b70 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88803076a9d0 RCX: ffffffff8aefc9d1
RDX: ffff888030629e00 RSI: ffffffff8aefd393 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90000a08c28
R13: ffff88807ea7b400 R14: 0000000000000041 R15: ffff88803076a500
FS:  000055558fed3380(0000) GS:ffff888124ab8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2192bd9960 CR3: 0000000074ac6000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xa6/0x280 net/mac80211/tx.c:5597
 ieee80211_beacon_get include/net/mac80211.h:5648 [inline]
 mac80211_hwsim_beacon_tx+0x4dc/0xa40 drivers/net/wireless/virtual/mac80211_hwsim.c:2313
 __iterate_interfaces+0x2e5/0x650 net/mac80211/util.c:761
 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:797
 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2347
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x202/0xad0 kernel/time/hrtimer.c:1825
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_is_watching+0x84/0xc0 kernel/rcu/tree.c:739
Code: ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b 03 c1 e8 02 83 e0 01 65 ff 0d 50 96 05 12 74 07 5b 5d <e9> 22 57 6f ff e8 02 4b 8b ff 5b 5d e9 16 57 6f ff 48 89 df e8 13
RSP: 0018:ffffc9000422f608 EFLAGS: 00000282
RAX: 0000000000000001 RBX: ffffea0001e89f00 RCX: ffffffff81f157fb
RDX: 0000000000000000 RSI: ffffffff8bf450c0 RDI: ffffffff8dcf6d08
RBP: ffffc9000422f780 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888075740dc0
R13: 0000000000000000 R14: 0000000000000001 R15: 1ffff92000845ef3
 rcu_read_lock_held_common kernel/rcu/update.c:109 [inline]
 rcu_read_lock_held+0x1e/0x50 kernel/rcu/update.c:349
 xa_entry include/linux/xarray.h:1220 [inline]
 xas_reload+0x29e/0x4a0 include/linux/xarray.h:1618
 next_uptodate_folio+0x114/0x4a0 mm/filemap.c:3568
 filemap_map_pages+0x63a/0x1680 mm/filemap.c:3746
 do_fault_around mm/memory.c:5476 [inline]
 do_read_fault mm/memory.c:5509 [inline]
 do_fault mm/memory.c:5652 [inline]
 do_pte_missing+0xf1d/0x3fb0 mm/memory.c:4160
 handle_pte_fault mm/memory.c:5997 [inline]
 __handle_mm_fault+0x103d/0x2a40 mm/memory.c:6140
 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
 faultin_page mm/gup.c:1193 [inline]
 __get_user_pages+0x771/0x36f0 mm/gup.c:1491
 populate_vma_page_range+0x278/0x3a0 mm/gup.c:1929
 __mm_populate+0x1d8/0x380 mm/gup.c:2032
 mm_populate include/linux/mm.h:3487 [inline]
 vm_mmap_pgoff+0x362/0x450 mm/util.c:584
 ksys_mmap_pgoff+0x7d/0x5c0 mm/mmap.c:607
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2192bade39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd4e5bbe28 EFLAGS: 00000216 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 000000000001d98c RCX: 00007f2192bade39
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 0000000000000000 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000216 R12: 00007ffd4e5bbe5c
R13: 00007ffd4e5bbe90 R14: 00007ffd4e5bbe70 R15: 0000000000000009
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	03 0f                	add    (%rdi),%ecx
   2:	b6 14                	mov    $0x14,%dh
   4:	02 48 89             	add    -0x77(%rax),%cl
   7:	d8 83 e0 07 83 c0    	fadds  -0x3f7cf820(%rbx)
   d:	03 38                	add    (%rax),%edi
   f:	d0 7c 04 84          	sarb   -0x7c(%rsp,%rax,1)
  13:	d2 75 24             	shlb   %cl,0x24(%rbp)
  16:	8b 03                	mov    (%rbx),%eax
  18:	c1 e8 02             	shr    $0x2,%eax
  1b:	83 e0 01             	and    $0x1,%eax
  1e:	65 ff 0d 50 96 05 12 	decl   %gs:0x12059650(%rip)        # 0x12059675
  25:	74 07                	je     0x2e
  27:	5b                   	pop    %rbx
  28:	5d                   	pop    %rbp
* 29:	e9 22 57 6f ff       	jmp    0xff6f5750 <-- trapping instruction
  2e:	e8 02 4b 8b ff       	call   0xff8b4b35
  33:	5b                   	pop    %rbx
  34:	5d                   	pop    %rbp
  35:	e9 16 57 6f ff       	jmp    0xff6f5750
  3a:	48 89 df             	mov    %rbx,%rdi
  3d:	e8                   	.byte 0xe8
  3e:	13                   	.byte 0x13