------------[ cut here ]------------
WARNING: CPU: 0 PID: 7115 at net/mac80211/tx.c:4851 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
WARNING: CPU: 0 PID: 7115 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5075
Modules linked in:
CPU: 0 PID: 7115 Comm: syz.4.722 Not tainted 5.15.188-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5075
Code: f8 0f 0b e9 f1 fa ff ff e8 41 02 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 30 02 3a f8 0f 0b e9 3c ef ff ff e8 24 02 3a f8 <0f> 0b e9 b8 f2 ff ff e8 68 cc 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0000:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893dd0fc RBX: ffff888060250c80 RCX: ffff8880256a5940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff8880256a5940 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88807747b800
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS: 000055556f320500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe6d969ed58 CR3: 00000000559c4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5194
ieee80211_beacon_get include/net/mac80211.h:4981 [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:1690 [inline]
__hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1771
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:finish_lock_switch+0x134/0x280 kernel/sched/core.c:4785
Code: be ff ff ff ff e8 ec 2e 56 08 85 c0 74 4a 4d 85 ff 75 66 0f 1f 44 00 00 48 89 df e8 a6 99 5f 08 e8 21 80 2a 00 fb 48 83 c4 08 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 48 89 df e8 99 10 fe ff 43 80 3c
RSP: 0000:ffffc90002fefc68 EFLAGS: 00000282
RAX: 4ce53a75dc889700 RBX: ffff8880b903a300 RCX: 4ce53a75dc889700
RDX: dffffc0000000000 RSI: ffffffff8a0b15c0 RDI: ffffffff8a59b000
RBP: 1ffff1101720760b R08: dffffc0000000000 R09: ffffed1017207461
R10: ffffed1017207461 R11: 1ffff11017207460 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff81580220 R15: 0000000000000000
finish_task_switch+0x12f/0x640 kernel/sched/core.c:4902
context_switch kernel/sched/core.c:5033 [inline]
__schedule+0x11c0/0x43b0 kernel/sched/core.c:6376
schedule+0x11b/0x1e0 kernel/sched/core.c:6459
exit_to_user_mode_loop+0x47/0x130 kernel/entry/common.c:169
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:320
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:681
RIP: 0033:0x7f0a21e20a30
Code: 38 44 89 68 fc 8b 43 28 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00 c6 44 24 1e 01 48 89 ee 44 89 e7 4c 89 44 24 10 <4c> 89 54 24 08 e8 66 ef fd ff 4c 8b 54 24 08 4c 8b 44 24 10 84 c0
RSP: 002b:00007ffe5c5eebc0 EFLAGS: 00000246
RAX: 000000000001a0d2 RBX: 00007f0a22c97720 RCX: 000000000006c787
RDX: ffffffff81b84109 RSI: ffffffff81b84a44 RDI: 0000000000000008
RBP: ffffffff81b84a44 R08: 00007f0a22168038 R09: 00007f0a22154000
R10: 00007f0a215b1008 R11: 0000000000000008 R12: 0000000000000008
R13: 0000000000000000 R14: ffffffff81b84109 R15: 000000000006c787
----------------
Code disassembly (best guess):
0: be ff ff ff ff mov $0xffffffff,%esi
5: e8 ec 2e 56 08 call 0x8562ef6
a: 85 c0 test %eax,%eax
c: 74 4a je 0x58
e: 4d 85 ff test %r15,%r15
11: 75 66 jne 0x79
13: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
18: 48 89 df mov %rbx,%rdi
1b: e8 a6 99 5f 08 call 0x85f99c6
20: e8 21 80 2a 00 call 0x2a8046
25: fb sti
26: 48 83 c4 08 add $0x8,%rsp
* 2a: 5b pop %rbx <-- trapping instruction
2b: 41 5c pop %r12
2d: 41 5d pop %r13
2f: 41 5e pop %r14
31: 41 5f pop %r15
33: 5d pop %rbp
34: c3 ret
35: 48 89 df mov %rbx,%rdi
38: e8 99 10 fe ff call 0xfffe10d6
3d: 43 rex.XB
3e: 80 .byte 0x80
3f: 3c .byte 0x3c