------------[ cut here ]------------ WARNING: CPU: 0 PID: 22462 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline] WARNING: CPU: 0 PID: 22462 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083 Modules linked in: CPU: 0 PID: 22462 Comm: syz.6.4492 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:4859 [inline] RIP: 0010:__ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083 Code: 2a f8 0f 0b 4f 89 64 2f 04 4f 89 64 2f 0c 43 c6 44 2f 14 f8 e9 19 fe ff ff e8 0d 4b 2a f8 0f 0b e9 03 ef ff ff e8 01 4b 2a f8 <0f> 0b e9 76 f2 ff ff e8 a5 92 6d 00 89 d9 80 e1 07 80 c1 03 38 c1 RSP: 0000:ffffc90004237840 EFLAGS: 00010246 RAX: ffffffff894ed60f RBX: ffff888022cce268 RCX: ffff88807b05d940 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90004237a68 R08: ffff88807b05d940 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff888053e7b800 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000846f18 FS: 0000555593bd1500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3c64cf CR3: 0000000053ae2000 CR4: 00000000003506f0 Call Trace: ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202 ieee80211_beacon_get include/net/mac80211.h:4983 [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:1685 [inline] __hrtimer_run_queues+0x4f2/0xb70 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766 handle_softirqs+0x339/0x830 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] invoke_softirq kernel/softirq.c:450 [inline] __irq_exit_rcu+0x13b/0x230 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+0x52/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0033:0x7fca2371bce4 Code: 4c 89 e6 eb 09 90 48 8b 4b 08 48 83 c3 08 48 39 d1 72 f3 48 8d 46 f8 48 8b 76 f8 48 39 f2 73 13 66 0f 1f 44 00 00 48 8b 70 f8 <48> 83 e8 08 48 39 f2 72 f3 48 39 c3 73 3e 48 89 33 48 89 c6 48 83 RSP: 002b:00007fff65253060 EFLAGS: 00000283 RAX: 00007fca23589970 RBX: 00007fca23587d48 RCX: ffffffff81acd334 RDX: ffffffff81acd04e RSI: ffffffff81acd3d1 RDI: 00007fca235891d8 RBP: 00007fca235848a0 R08: 00007fca23aaf000 R09: 00007fca23ac5038 R10: 0000000000000003 R11: 0000000000000004 R12: 00007fca2358db18 R13: 0000000000000019 R14: 000000000000124f R15: 0000000000000003