------------[ cut here ]------------
WARNING: CPU: 1 PID: 7243 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 1 PID: 7243 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 1 PID: 7243 Comm: syz.3.364 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Code: 24 4c 89 e7 e8 8e 80 c0 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 79 be 82 f7 0f 0b e9 f6 f7 ff ff e8 6d be 82 f7 <0f> 0b e9 48 fb ff ff e8 61 be 82 f7 48 c7 c7 00 85 64 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff8a046393 RBX: ffffffff8a045196 RCX: ffff888027f21e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888027f21e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805ea4a3c0
R13: dffffc0000000000 R14: ffff88805ea4a8b0 R15: ffff88805f16a424
FS: 00007f1c71b286c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3658f4da08 CR3: 0000000021260000 CR4: 00000000003506e0
Call Trace:
ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5569
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:get_current arch/x86/include/asm/current.h:41 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x60 kernel/kcov.c:215
Code: 00 00 f3 0f 1e fa 53 48 89 fb e8 13 00 00 00 48 8b 3d 1c f5 03 0d 48 89 de 5b e9 e3 67 57 00 cc cc cc f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d b0 93 7c 7e 65 8b 15 b1 93 7c 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc9000baffa78 EFLAGS: 00000246
RAX: ffffffff8870de61 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000baffd28 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000baffc70 R08: ffffc9000baffb17 R09: 1ffff9200175ff62
R10: dffffc0000000000 R11: fffff5200175ff63 R12: ffffc9000baffd20
R13: dffffc0000000000 R14: 1ffff9200175ffa5 R15: 1ffff9200175ff58
__copy_msghdr net/socket.c:2495 [inline]
copy_msghdr_from_user net/socket.c:2527 [inline]
recvmsg_copy_msghdr net/socket.c:2779 [inline]
___sys_recvmsg+0x411/0x590 net/socket.c:2851
do_recvmmsg+0x39a/0x870 net/socket.c:2949
__sys_recvmmsg net/socket.c:3028 [inline]
__do_sys_recvmmsg net/socket.c:3051 [inline]
__se_sys_recvmmsg net/socket.c:3044 [inline]
__x64_sys_recvmmsg+0x199/0x250 net/socket.c:3044
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: 0033:0x7f1c70b9c819
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:00007f1c71b28028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f1c70e16090 RCX: 00007f1c70b9c819
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f1c70c32c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1c70e16128 R14: 00007f1c70e16090 R15: 00007ffd574b1378
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: f3 0f 1e fa endbr64
6: 53 push %rbx
7: 48 89 fb mov %rdi,%rbx
a: e8 13 00 00 00 call 0x22
f: 48 8b 3d 1c f5 03 0d mov 0xd03f51c(%rip),%rdi # 0xd03f532
16: 48 89 de mov %rbx,%rsi
19: 5b pop %rbx
1a: e9 e3 67 57 00 jmp 0x576802
1f: cc int3
20: cc int3
21: cc int3
22: f3 0f 1e fa endbr64
26: 48 8b 04 24 mov (%rsp),%rax
* 2a: 65 48 8b 0d b0 93 7c mov %gs:0x7e7c93b0(%rip),%rcx # 0x7e7c93e2 <-- trapping instruction
31: 7e
32: 65 8b 15 b1 93 7c 7e mov %gs:0x7e7c93b1(%rip),%edx # 0x7e7c93ea
39: 81 e2 00 01 ff 00 and $0xff0100,%edx
3f: 74 .byte 0x74