------------[ cut here ]------------
WARNING: CPU: 1 PID: 29564 at net/mac80211/tx.c:5033 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
WARNING: CPU: 1 PID: 29564 at net/mac80211/tx.c:5033 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5444
Modules linked in:
CPU: 1 PID: 29564 Comm: syz.6.5045 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5444
Code: 24 4c 89 e7 e8 be 74 c0 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 b9 b2 82 f7 0f 0b e9 f6 f7 ff ff e8 ad b2 82 f7 <0f> 0b e9 48 fb ff ff e8 a1 b2 82 f7 48 c7 c7 20 89 64 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff8a046f53 RBX: ffffffff8a045d56 RCX: ffff8880193a8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8880193a8000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805e8fe3c0
R13: dffffc0000000000 R14: ffff88805e8fe8b0 R15: ffff888055dd2824
FS: 00007f0b955f66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33021ff8 CR3: 00000000509b1000 CR4: 00000000003506e0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5571
ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
__iterate_interfaces+0x243/0x500 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:1750 [inline]
__hrtimer_run_queues+0x520/0xc40 kernel/time/hrtimer.c:1814
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
handle_softirqs+0x280/0x820 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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:unix_wait_for_peer+0xd2/0x2f0 net/unix/af_unix.c:1504
Code: 00 00 48 89 44 24 48 48 c7 44 24 50 70 70 65 81 4c 8d 64 24 58 4c 89 e0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 e7 e8 4e 34 a8 f8 <4c> 89 64 24 58 49 8d 7d 20 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05
RSP: 0018:ffffc90003687640 EFLAGS: 00000246
RAX: 1ffff920006d0ed3 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9000e80f000 RSI: 000000000006baaa RDI: 000000000006baab
RBP: ffffc90003687730 R08: ffff88802f459067 R09: 1ffff11005e8b20c
R10: dffffc0000000000 R11: ffffed1005e8b20d R12: ffffc90003687698
R13: ffffc90003687680 R14: 1ffff920006d0ecc R15: ffff88802f459000
unix_dgram_sendmsg+0xec2/0x16d0 net/unix/af_unix.c:2105
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0x5ba/0x960 net/socket.c:2594
___sys_sendmsg+0x2a6/0x360 net/socket.c:2648
__sys_sendmmsg+0x2ca/0x510 net/socket.c:2734
__do_sys_sendmmsg net/socket.c:2763 [inline]
__se_sys_sendmmsg net/socket.c:2760 [inline]
__x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2760
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0b9479cdd9
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:00007f0b955f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f0b94a15fa0 RCX: 00007f0b9479cdd9
RDX: 0000000000000651 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007f0b94832d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0b94a16038 R14: 00007f0b94a15fa0 R15: 00007ffec31f0b08
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 48 89 44 24 48 mov %rax,0x48(%rsp)
7: 48 c7 44 24 50 70 70 movq $0xffffffff81657070,0x50(%rsp)
e: 65 81
10: 4c 8d 64 24 58 lea 0x58(%rsp),%r12
15: 4c 89 e0 mov %r12,%rax
18: 48 c1 e8 03 shr $0x3,%rax
1c: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
20: 74 08 je 0x2a
22: 4c 89 e7 mov %r12,%rdi
25: e8 4e 34 a8 f8 call 0xf8a83478
* 2a: 4c 89 64 24 58 mov %r12,0x58(%rsp) <-- trapping instruction
2f: 49 8d 7d 20 lea 0x20(%r13),%rdi
33: 48 89 f8 mov %rdi,%rax
36: 48 c1 e8 03 shr $0x3,%rax
3a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
3e: 74 05 je 0x45