------------[ cut here ]------------
WARNING: CPU: 0 PID: 5774 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 0 PID: 5774 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 0 PID: 5774 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 0e 88 d4 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 19 65 97 f7 0f 0b e9 f6 f7 ff ff e8 0d 65 97 f7 <0f> 0b e9 48 fb ff ff e8 01 65 97 f7 48 c7 c7 a0 09 24 8e 4c 89 e6
RSP: 0000:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff89ee2a93 RBX: ffffffff89ee1896 RCX: ffff88807c189e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88807c189e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88802392a3c0
R13: dffffc0000000000 R14: ffff88802392a8b0 R15: ffff88805e57c424
FS: 00005555604d3500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f35e4af7ba6 CR3: 000000007f2d7000 CR4: 00000000003526f0
DR0: fffffffffffffff1 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0xb8/0x560 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:1755 [inline]
__hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
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+0xc7/0x190 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:finish_task_switch+0x26a/0x920 kernel/sched/core.c:5254
Code: 0f 84 37 01 00 00 48 85 db 0f 85 56 01 00 00 e9 f6 04 00 00 4c 8b 75 d0 4c 89 e7 e8 20 54 1b 09 e8 ab a6 2f 00 fb 4c 8b 65 c0 <49> 8d bc 24 f8 15 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0000:ffffc900041d7858 EFLAGS: 00000282
RAX: 1949a5dbf821be00 RBX: 0000000000000000 RCX: 1949a5dbf821be00
RDX: dffffc0000000000 RSI: ffffffff8aaaba20 RDI: ffffffff8afc7040
RBP: ffffc900041d78b0 R08: ffffffff8e4a8f2f R09: 1ffffffff1c951e5
R10: dffffc0000000000 R11: fffffbfff1c951e6 R12: ffff88807c189e00
R13: dffffc0000000000 R14: ffff8880315fda00 R15: ffff8880b8e3cf08
context_switch kernel/sched/core.c:5383 [inline]
__schedule+0x14da/0x44d0 kernel/sched/core.c:6699
preempt_schedule_irq+0xb5/0x140 kernel/sched/core.c:7009
irqentry_exit+0x67/0x70 kernel/entry/common.c:438
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:692
RIP: 0010:lock_acquire+0x1f2/0x410 kernel/locking/lockdep.c:5758
Code: 00 9c 8f 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 0f 85 f5 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 66 43 c7 44 3c 09 00 00 43 c6 44 3c 0b 00
RSP: 0000:ffffc900041d7c20 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1949a5dbf821be00
RDX: 0000000000000000 RSI: ffffffff8aaacba0 RDI: ffffffff8afc7040
RBP: ffffc900041d7d28 R08: dffffc0000000000 R09: 1ffffffff21b4aa0
R10: dffffc0000000000 R11: fffffbfff21b4aa1 R12: 1ffff9200083af90
R13: ffffffff8cd2fbe0 R14: 0000000000000246 R15: dffffc0000000000
rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
rcu_read_lock include/linux/rcupdate.h:786 [inline]
lock_vma_under_rcu+0xf1/0x650 mm/memory.c:5481
do_user_addr_fault+0x318/0x12e0 arch/x86/mm/fault.c:1316
handle_page_fault arch/x86/mm/fault.c:1465 [inline]
exc_page_fault+0x67/0x110 arch/x86/mm/fault.c:1521
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f35e6c7803f
Code: 49 89 d1 48 c1 ea 03 48 83 c6 08 49 c1 e9 06 48 c1 e0 0e 48 89 d1 48 01 f8 41 81 e1 ff 3f 00 00 83 e1 07 bf 01 00 00 00 d3 e7 <41> 08 bc 01 20 20 00 00 49 39 f0 0f 85 78 fe ff ff 48 8b 9d 68 fd
RSP: 002b:00007ffdfd0e97f0 EFLAGS: 00010202
RAX: 00007f35e4af4000 RBX: 00005555604e6d80 RCX: 0000000000000007
RDX: 1ffffffff144dc37 RSI: 00005555604ea940 RDI: 0000000000000080
RBP: 00007ffdfd0e9ae0 R08: 00005555604ea968 R09: 0000000000001b86
R10: 00000094b366c5ca R11: 00007ffdfd0e9cf0 R12: 00007ffdfd0e9b40
R13: 0000000000000004 R14: 00007ffdfd0e9860 R15: 00007ffdfd0e9930
----------------
Code disassembly (best guess):
0: 0f 84 37 01 00 00 je 0x13d
6: 48 85 db test %rbx,%rbx
9: 0f 85 56 01 00 00 jne 0x165
f: e9 f6 04 00 00 jmp 0x50a
14: 4c 8b 75 d0 mov -0x30(%rbp),%r14
18: 4c 89 e7 mov %r12,%rdi
1b: e8 20 54 1b 09 call 0x91b5440
20: e8 ab a6 2f 00 call 0x2fa6d0
25: fb sti
26: 4c 8b 65 c0 mov -0x40(%rbp),%r12
* 2a: 49 8d bc 24 f8 15 00 lea 0x15f8(%r12),%rdi <-- trapping instruction
31: 00
32: 48 89 f8 mov %rdi,%rax
35: 48 c1 e8 03 shr $0x3,%rax
39: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax
3e: 84 c0 test %al,%al