------------[ cut here ]------------
WARNING: CPU: 1 PID: 8847 at net/mac80211/tx.c:4946 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4946 [inline]
WARNING: CPU: 1 PID: 8847 at net/mac80211/tx.c:4946 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5347
Modules linked in:
CPU: 1 PID: 8847 Comm: syz.3.1112 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:4946 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5347
Code: f7 4c 89 ef e8 00 21 07 f8 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 2b 83 ce f7 0f 0b e9 61 f8 ff ff e8 1f 83 ce f7 <0f> 0b e9 85 fb ff ff e8 13 83 ce f7 48 c7 c7 20 02 fc 8d 4c 89 e6
RSP: 0018:ffffc900001e0a48 EFLAGS: 00010246
RAX: ffffffff89b39e81 RBX: dffffc0000000000 RCX: ffff888025743c00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888025743c00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888023b9e228
R13: ffff88807e101424 R14: ffff888023b9e760 R15: ffff88807e101400
FS: 00007fdbb652c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000028000 CR3: 00000000760d4000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5474
ieee80211_beacon_get include/net/mac80211.h:5335 [inline]
mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
__iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:788
ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__run_hrtimer kernel/time/hrtimer.c:1751 [inline]
__hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
handle_softirqs+0x291/0x910 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:_raw_spin_lock_irq+0x1/0xf0 kernel/locking/spinlock.c:169
Code: 44 24 48 75 10 4c 89 f0 48 8d 65 e0 5b 41 5c 41 5e 41 5f 5d c3 e8 7f e5 f5 ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 <48> 89 e5 41 57 41 56 53 48 83 e4 e0 48 83 ec 60 48 89 fb 65 48 8b
RSP: 0018:ffffc90003567970 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 9830f938d2ed1a00
RDX: ffff88802574403c RSI: ffffffff8a8c2920 RDI: ffffc90003567b68
RBP: ffffc90003567ab0 R08: ffffc900035678c7 R09: 1ffff920006acf18
R10: dffffc0000000000 R11: fffff520006acf19 R12: 0000000000000000
R13: ffffc90003567b60 R14: dffffc0000000000 R15: 1ffff920006acf40
__wait_for_common kernel/sched/completion.c:105 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0xa1/0x590 kernel/sched/completion.c:138
rdmsr_safe_on_cpu+0x176/0x290 arch/x86/lib/msr-smp.c:183
msr_read+0x108/0x1b0 arch/x86/kernel/msr.c:67
vfs_read+0x2db/0x960 fs/read_write.c:468
ksys_read+0x14d/0x260 fs/read_write.c:613
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdbb559de59
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:00007fdbb652c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fdbb5825fa0 RCX: 00007fdbb559de59
RDX: 0000000000018ff8 RSI: 0000200000019680 RDI: 0000000000000003
RBP: 00007fdbb5633e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdbb5826038 R14: 00007fdbb5825fa0 R15: 00007fff47e490c8
----------------
Code disassembly (best guess):
0: 44 24 48 rex.R and $0x48,%al
3: 75 10 jne 0x15
5: 4c 89 f0 mov %r14,%rax
8: 48 8d 65 e0 lea -0x20(%rbp),%rsp
c: 5b pop %rbx
d: 41 5c pop %r12
f: 41 5e pop %r14
11: 41 5f pop %r15
13: 5d pop %rbp
14: c3 ret
15: e8 7f e5 f5 ff call 0xfff5e599
1a: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
21: 00 00 00
24: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
29: 55 push %rbp
* 2a: 48 89 e5 mov %rsp,%rbp <-- trapping instruction
2d: 41 57 push %r15
2f: 41 56 push %r14
31: 53 push %rbx
32: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp
36: 48 83 ec 60 sub $0x60,%rsp
3a: 48 89 fb mov %rdi,%rbx
3d: 65 gs
3e: 48 rex.W
3f: 8b .byte 0x8b