------------[ cut here ]------------ WARNING: CPU: 1 PID: 17340 at net/mac80211/tx.c:5033 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline] WARNING: CPU: 1 PID: 17340 at net/mac80211/tx.c:5033 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5444 Modules linked in: CPU: 1 PID: 17340 Comm: syz.0.3640 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:5033 [inline] RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5444 Code: f7 4c 89 ef e8 70 d3 ba f7 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 cb f1 7c f7 0f 0b e9 61 f8 ff ff e8 bf f1 7c f7 <0f> 0b e9 85 fb ff ff e8 b3 f1 7c f7 48 c7 c7 00 ae 65 8e 4c 89 e6 RSP: 0018:ffffc900001f0ab8 EFLAGS: 00010246 RAX: ffffffff8a09f3b1 RBX: dffffc0000000000 RCX: ffff8880285e5a00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8880285e5a00 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff888050202440 R13: ffff88801bf15824 R14: ffff888050202930 R15: ffff88801bf15800 FS: 00007f0a1ddb46c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c306a4c CR3: 0000000063680000 CR4: 00000000003506e0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5571 ieee80211_beacon_get include/net/mac80211.h:5440 [inline] mac80211_hwsim_beacon_tx+0x3bd/0x770 drivers/net/wireless/virtual/mac80211_hwsim.c:2265 __iterate_interfaces+0x225/0x4c0 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:1754 [inline] __hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818 hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835 handle_softirqs+0x27d/0x820 kernel/softirq.c:578 do_softirq+0xfa/0x1a0 kernel/softirq.c:479 __local_bh_enable_ip+0x184/0x1c0 kernel/softirq.c:406 spin_unlock_bh include/linux/spinlock.h:396 [inline] hash_ipmark4_add+0x154f/0x2040 net/netfilter/ipset/ip_set_hash_gen.h:995 hash_ipmark4_uadt+0x780/0x9e0 net/netfilter/ipset/ip_set_hash_ipmark.c:159 call_ad+0x185/0xb30 net/netfilter/ipset/ip_set_core.c:1751 ip_set_ad+0x81a/0x9c0 net/netfilter/ipset/ip_set_core.c:1841 nfnetlink_rcv_msg+0xcaf/0x1290 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x235/0x4c0 net/netlink/af_netlink.c:2550 nfnetlink_rcv+0x2c9/0x2490 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x7b1/0x930 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d0/0xbf0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x61b/0x980 net/socket.c:2595 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2649 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2687 [inline] __se_sys_sendmsg+0x1d0/0x2c0 net/socket.c:2685 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f0a1fb9de99 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:00007f0a1ddb4028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0a1fe26180 RCX: 00007f0a1fb9de99 RDX: 00000000040c0080 RSI: 00002000000002c0 RDI: 000000000000000a RBP: 00007f0a1fc33eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0a1fe26218 R14: 00007f0a1fe26180 R15: 00007ffe22fcd768