------------[ cut here ]------------ WARNING: CPU: 0 PID: 9556 at net/mac80211/chan.c:92 ieee80211_chanctx_reserved_chandef net/mac80211/chan.c:90 [inline] WARNING: CPU: 0 PID: 9556 at net/mac80211/chan.c:92 ieee80211_chsw_switch_hwconf net/mac80211/chan.c:1422 [inline] WARNING: CPU: 0 PID: 9556 at net/mac80211/chan.c:92 ieee80211_vif_use_reserved_switch+0x110e/0x2900 net/mac80211/chan.c:1638 Modules linked in: CPU: 0 PID: 9556 Comm: syz.2.1107 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:ieee80211_chanctx_reserved_chandef net/mac80211/chan.c:92 [inline] RIP: 0010:ieee80211_chsw_switch_hwconf net/mac80211/chan.c:1422 [inline] RIP: 0010:ieee80211_vif_use_reserved_switch+0x110e/0x2900 net/mac80211/chan.c:1638 Code: 48 89 df e8 d4 44 d0 f7 e9 d6 fc ff ff e8 7a c2 77 f7 eb 24 e8 73 c2 77 f7 c7 04 24 f4 ff ff ff e9 cc f5 ff ff e8 62 c2 77 f7 <0f> 0b 0f 0b e9 b7 f5 ff ff e8 54 c2 77 f7 48 8b 7c 24 08 4c 8b 74 RSP: 0018:ffffc9000b90ee00 EFLAGS: 00010287 RAX: ffffffff8a0fab12 RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc9000f7d5000 RSI: 0000000000006e5e RDI: 0000000000006e5f RBP: dffffc0000000000 R08: ffffffff911eb5c7 R09: 1ffffffff223d6b8 R10: dffffc0000000000 R11: fffffbfff223d6b9 R12: 0000000000000001 R13: ffff888078d76659 R14: ffff888079992d48 R15: ffff888080df3400 FS: 00007f41a20b36c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f41a20b1fa8 CR3: 0000000025584000 CR4: 00000000003506f0 Call Trace: ieee80211_link_use_reserved_context+0x37b/0x5c0 net/mac80211/chan.c:1927 __ieee80211_csa_finalize net/mac80211/cfg.c:3669 [inline] ieee80211_csa_finalize+0x571/0xeb0 net/mac80211/cfg.c:3708 __ieee80211_channel_switch net/mac80211/cfg.c:3983 [inline] ieee80211_channel_switch+0xad5/0xe80 net/mac80211/cfg.c:3999 rdev_channel_switch+0xeb/0x240 net/wireless/rdev-ops.h:1111 nl80211_channel_switch+0xb02/0x1130 net/wireless/nl80211.c:10350 genl_family_rcv_msg_doit+0x21a/0x310 net/netlink/genetlink.c:971 genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline] genl_rcv_msg+0x611/0x7a0 net/netlink/genetlink.c:1066 netlink_rcv_skb+0x235/0x4c0 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075 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: 0033:0x7f41a119e019 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:00007f41a20b3028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f41a1426180 RCX: 00007f41a119e019 RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000000000000004 RBP: 00007f41a123500c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f41a1426218 R14: 00007f41a1426180 R15: 00007fffd1b44408