------------[ cut here ]------------
WARNING: CPU: 1 PID: 13597 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 1 PID: 13597 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 1 PID: 13597 Comm: syz.6.2684 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Code: f8 0f 0b e9 f1 fa ff ff e8 01 51 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 f0 50 3a f8 0f 0b e9 3c ef ff ff e8 e4 50 3a f8 <0f> 0b e9 b8 f2 ff ff e8 98 f2 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc90000dd08c0 EFLAGS: 00010246
RAX: ffffffff893d7b2c RBX: ffff888062f18c80 RCX: ffff888025eb0000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0ae8 R08: ffff888025eb0000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff8880637a9400
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba128
FS: 00007fc9282ee6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5558dc92e0 CR3: 000000002ae1a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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+0x53d/0xc40 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 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
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:_raw_spin_unlock_irqrestore+0xb5/0x100 kernel/locking/spinlock.c:195
Code: 9c 8f 44 24 20 f6 44 24 21 02 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 e8 f6 95 9e f7 65 8b 05 87 93 4f 76 85 c0 74 3c <48> c7 04 24 0e 36 e0 45 4b c7 04 27 00 00 00 00 65 48 8b 04 25 28
RSP: 0018:ffffc9000344f5e0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 0000000000000a02 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8a0b1c60 RDI: 00000000ffffffff
RBP: ffffc9000344f678 R08: dffffc0000000000 R09: fffffbfff1ff7c2f
R10: fffffbfff1ff7c2f R11: 1ffffffff1ff7c2e R12: dffffc0000000000
R13: 1ffff1100fdf8044 R14: ffff88807efc01c8 R15: 1ffff92000689ebc
spin_unlock_irqrestore include/linux/spinlock.h:419 [inline]
__skb_try_recv_datagram+0x179/0x4d0 net/core/datagram.c:267
__unix_dgram_recvmsg+0x2d3/0xd50 net/unix/af_unix.c:2315
____sys_recvmsg+0x291/0x580 net/socket.c:-1
___sys_recvmsg+0x1af/0x4f0 net/socket.c:2707
do_recvmmsg+0x344/0x7a0 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+0x18d/0x240 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: 0033:0x7fc92a0affc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc9282ee038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fc92a307090 RCX: 00007fc92a0affc9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007fc92a132f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc92a307128 R14: 00007fc92a307090 R15: 00007ffd6bfda368
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: f6 44 24 21 02 testb $0x2,0x21(%rsp)
a: 75 4b jne 0x57
c: f7 c3 00 02 00 00 test $0x200,%ebx
12: 74 01 je 0x15
14: fb sti
15: bf 01 00 00 00 mov $0x1,%edi
1a: e8 f6 95 9e f7 call 0xf79e9615
1f: 65 8b 05 87 93 4f 76 mov %gs:0x764f9387(%rip),%eax # 0x764f93ad
26: 85 c0 test %eax,%eax
28: 74 3c je 0x66
* 2a: 48 c7 04 24 0e 36 e0 movq $0x45e0360e,(%rsp) <-- trapping instruction
31: 45
32: 4b c7 04 27 00 00 00 movq $0x0,(%r15,%r12,1)
39: 00
3a: 65 gs
3b: 48 rex.W
3c: 8b .byte 0x8b
3d: 04 25 add $0x25,%al
3f: 28 .byte 0x28