------------[ cut here ]------------ WARNING: CPU: 0 PID: 22318 at net/mac80211/ibss.c:501 ieee80211_ibss_csa_beacon+0x5bd/0x6a0 net/mac80211/ibss.c:501 Modules linked in: CPU: 0 PID: 22318 Comm: syz.8.4333 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:ieee80211_ibss_csa_beacon+0x5bd/0x6a0 net/mac80211/ibss.c:501 Code: f7 c6 05 22 d0 7b 04 01 48 c7 c7 a0 dc de 8b be fe 01 00 00 48 c7 c2 40 dd de 8b e8 dd f9 6e f7 e9 5f fe ff ff e8 33 3c 8d f7 <0f> 0b b8 ea ff ff ff e9 7a ff ff ff e8 22 3c 8d f7 0f 0b e9 b2 fa RSP: 0018:ffffc9000430eee0 EFLAGS: 00010283 RAX: ffffffff89f9e5cd RBX: ffff88805c2c8700 RCX: 0000000000080000 RDX: ffffc9000c549000 RSI: 000000000000284b RDI: 000000000000284c RBP: 1ffff1100cdaf2b3 R08: ffffffff911c65c7 R09: 1ffffffff2238cb8 R10: dffffc0000000000 R11: fffffbfff2238cb9 R12: ffffc9000430f0c0 R13: ffff888066d79598 R14: ffff888066d79a88 R15: ffff888066d78c80 FS: 00007f63fae4f6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ee20ff8 CR3: 0000000068b2f000 CR4: 00000000003506f0 Call Trace: ieee80211_set_csa_beacon+0x77e/0xa10 net/mac80211/cfg.c:3826 __ieee80211_channel_switch net/mac80211/cfg.c:3954 [inline] ieee80211_channel_switch+0x7e9/0xe70 net/mac80211/cfg.c:3999 rdev_channel_switch+0xeb/0x240 net/wireless/rdev-ops.h:1111 nl80211_channel_switch+0xae8/0x1120 net/wireless/nl80211.c:10335 genl_family_rcv_msg_doit+0x211/0x310 net/netlink/genetlink.c:971 genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline] genl_rcv_msg+0x619/0x7a0 net/netlink/genetlink.c:1066 netlink_rcv_skb+0x241/0x4d0 net/netlink/af_netlink.c:2545 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d0/0xbf0 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x5ba/0x960 net/socket.c:2594 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2648 __sys_sendmsg net/socket.c:2677 [inline] __do_sys_sendmsg net/socket.c:2686 [inline] __se_sys_sendmsg+0x1c2/0x2b0 net/socket.c:2684 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f63f9f9cdd9 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:00007f63fae4f028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f63fa215fa0 RCX: 00007f63f9f9cdd9 RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000000000000003 RBP: 00007f63fa032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f63fa216038 R14: 00007f63fa215fa0 R15: 00007ffe75a8ded8