------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at net/mac80211/tx.c:4946 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4946 [inline] WARNING: CPU: 0 PID: 15 at net/mac80211/tx.c:4946 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5347 Modules linked in: CPU: 0 PID: 15 Comm: ksoftirqd/0 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+0x1233/0x1600 net/mac80211/tx.c:5347 Code: 24 4c 89 e7 e8 6e b6 08 f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 59 1a d0 f7 0f 0b e9 f6 f7 ff ff e8 4d 1a d0 f7 <0f> 0b e9 48 fb ff ff e8 41 1a d0 f7 48 c7 c7 b0 24 fb 8d 4c 89 e6 RSP: 0018:ffffc900001478d0 EFLAGS: 00010246 RAX: ffffffff89b26153 RBX: ffffffff89b24f56 RCX: ffff88813fef3c00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88813fef3c00 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff888064582228 R13: dffffc0000000000 R14: ffff888064582760 R15: ffff888055297824 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5b6ae18ce0 CR3: 0000000072a2c000 CR4: 00000000003506f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002 DR3: ffffffffefffff15 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+0x243/0x500 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+0x54a/0xd50 kernel/time/hrtimer.c:1815 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1832 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:968 smpboot_thread_fn+0x64a/0xa40 kernel/smpboot.c:164 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295