------------[ cut here ]------------
WARNING: CPU: 0 PID: 9194 at net/mac80211/tx.c:5033 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
WARNING: CPU: 0 PID: 9194 at net/mac80211/tx.c:5033 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5444
Modules linked in:
CPU: 0 PID: 9194 Comm: syz.3.722 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5444
Code: f7 4c 89 ef e8 70 d3 ba f7 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 cb f1 7c f7 0f 0b e9 61 f8 ff ff e8 bf f1 7c f7 <0f> 0b e9 85 fb ff ff e8 b3 f1 7c f7 48 c7 c7 00 ae 65 8e 4c 89 e6
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff8a09f3b1 RBX: dffffc0000000000 RCX: ffff888031fbda00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888031fbda00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805c962440
R13: ffff888030694c24 R14: ffff88805c962930 R15: ffff888030694c00
FS: 00007fbcd59d56c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbcd59b4d58 CR3: 000000007b9ba000 CR4: 00000000003506f0
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+0x3bd/0x770 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
__iterate_interfaces+0x225/0x4c0 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:1754 [inline]
__hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
handle_softirqs+0x27d/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:__sanitizer_cov_trace_const_cmp4+0x4/0x90 kernel/kcov.c:314
Code: 48 c7 44 11 08 03 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa <48> 8b 04 24 65 48 8b 15 10 cf 7c 7e 65 8b 0d 11 cf 7c 7e 81 e1 00
RSP: 0018:ffffc9000452fc78 EFLAGS: 00000206
RAX: ffffffff8876cff8 RBX: 0000000000000002 RCX: 0000000000080000
RDX: ffffc9000e960000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc9000452fe50 R08: ffffffff8e8c6b2f R09: 1ffffffff1d18d65
R10: dffffc0000000000 R11: fffffbfff1d18d66 R12: 00002000000000c0
R13: 0000000000000008 R14: 0000000000009e18 R15: 0000000000009e17
do_recvmmsg+0x340/0x810 net/socket.c:2941
__sys_recvmmsg net/socket.c:3029 [inline]
__do_sys_recvmmsg net/socket.c:3052 [inline]
__se_sys_recvmmsg net/socket.c:3045 [inline]
__x64_sys_recvmmsg+0x199/0x250 net/socket.c:3045
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbcd779de59
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:00007fbcd59d5028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fbcd7a26090 RCX: 00007fbcd779de59
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007fbcd7833e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbcd7a26128 R14: 00007fbcd7a26090 R15: 00007ffcbdf17e48
----------------
Code disassembly (best guess):
0: 48 c7 44 11 08 03 00 movq $0x3,0x8(%rcx,%rdx,1)
7: 00 00
9: 48 89 7c 11 10 mov %rdi,0x10(%rcx,%rdx,1)
e: 48 89 74 11 18 mov %rsi,0x18(%rcx,%rdx,1)
13: 48 89 44 11 20 mov %rax,0x20(%rcx,%rdx,1)
18: c3 ret
19: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
20: 00 00 00
23: 0f 1f 00 nopl (%rax)
26: f3 0f 1e fa endbr64
* 2a: 48 8b 04 24 mov (%rsp),%rax <-- trapping instruction
2e: 65 48 8b 15 10 cf 7c mov %gs:0x7e7ccf10(%rip),%rdx # 0x7e7ccf46
35: 7e
36: 65 8b 0d 11 cf 7c 7e mov %gs:0x7e7ccf11(%rip),%ecx # 0x7e7ccf4e
3d: 81 .byte 0x81
3e: e1 00 loope 0x40