------------[ cut here ]------------
WARNING: CPU: 1 PID: 8365 at net/mac80211/tx.c:4876 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4876 [inline]
WARNING: CPU: 1 PID: 8365 at net/mac80211/tx.c:4876 __ieee80211_beacon_get+0x178a/0x1ff0 net/mac80211/tx.c:5100
Modules linked in:
CPU: 1 PID: 8365 Comm: syz.7.846 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4876 [inline]
RIP: 0010:__ieee80211_beacon_get+0x178a/0x1ff0 net/mac80211/tx.c:5100
Code: 26 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 92 68 26 f8 0f 0b e9 16 ef ff ff e8 86 68 26 f8 <0f> 0b e9 7c f2 ff ff e8 7a 7b 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90000dd08c0 EFLAGS: 00010246
RAX: ffffffff895298fa RBX: ffff88807d30ba00 RCX: ffff888068dd9dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0af8 R08: ffff888068dd9dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: f8f8f8f8f8f8f8f8
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba128
FS:  00007ff5c79536c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c316083 CR3: 000000007be20000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5219
 ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
 mac80211_hwsim_beacon_tx+0x104/0x900 drivers/net/wireless/mac80211_hwsim.c:1812
 __iterate_interfaces+0x225/0x4c0 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+0x4ea/0xb60 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x336/0x830 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:lock_is_held_type+0x4c/0x190 kernel/locking/lockdep.c:5659
Code: 3d 6c 2a cb 03 00 0f 84 03 01 00 00 65 8b 05 1b 62 42 76 85 c0 0f 85 f4 00 00 00 65 48 8b 1d 8b 58 42 76 83 bb ec 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:ffffc90002fdf8d8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888068dd9dc0 RCX: ffff888068dd9dc0
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8c31efc0
RBP: 00000000ffffffff R08: ffffc90002fdfb37 R09: ffffc90002fdfb00
R10: dffffc0000000000 R11: fffff520005fbf67 R12: dffffc0000000000
R13: ffffc90002fdfb00 R14: ffffffff8a7a04e0 R15: 0000000000000000
 lock_is_held include/linux/lockdep.h:287 [inline]
 ___might_sleep+0x9b/0x610 kernel/sched/core.c:9624
 __might_fault+0x6b/0x110 mm/memory.c:5354
 _copy_from_user+0x29/0x170 lib/usercopy.c:14
 copy_from_user include/linux/uaccess.h:192 [inline]
 __copy_msghdr_from_user net/socket.c:2328 [inline]
 copy_msghdr_from_user net/socket.c:2379 [inline]
 recvmsg_copy_msghdr net/socket.c:2631 [inline]
 ___sys_recvmsg+0x173/0x5c0 net/socket.c:2703
 do_recvmmsg+0x360/0x7f0 net/socket.c:2801
 __sys_recvmmsg net/socket.c:2880 [inline]
 __do_sys_recvmmsg net/socket.c:2903 [inline]
 __se_sys_recvmmsg net/socket.c:2896 [inline]
 __x64_sys_recvmmsg+0x195/0x250 net/socket.c:2896
 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: 0033:0x7ff5c971be99
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:00007ff5c7953028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007ff5c99a4090 RCX: 00007ff5c971be99
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007ff5c97b1eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff5c99a4128 R14: 00007ff5c99a4090 R15: 00007ffdd9d96f08
 </TASK>
----------------
Code disassembly (best guess):
   0:	3d 6c 2a cb 03       	cmp    $0x3cb2a6c,%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 1b 62 42 76       	add    $0x7642621b,%eax
  13:	85 c0                	test   %eax,%eax
  15:	0f 85 f4 00 00 00    	jne    0x10f
  1b:	65 48 8b 1d 8b 58 42 	mov    %gs:0x7642588b(%rip),%rbx        # 0x764258ae
  22:	76
  23:	83 bb ec 0a 00 00 00 	cmpl   $0x0,0xaec(%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