------------[ cut here ]------------ WARNING: CPU: 1 PID: 23556 at net/mac80211/chan.c:92 ieee80211_chanctx_reserved_chandef net/mac80211/chan.c:90 [inline] WARNING: CPU: 1 PID: 23556 at net/mac80211/chan.c:92 ieee80211_chsw_switch_hwconf net/mac80211/chan.c:1422 [inline] WARNING: CPU: 1 PID: 23556 at net/mac80211/chan.c:92 ieee80211_vif_use_reserved_switch+0x10e8/0x28f0 net/mac80211/chan.c:1638 Modules linked in: CPU: 1 PID: 23556 Comm: syz.7.3618 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 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+0x10e8/0x28f0 net/mac80211/chan.c:1638 Code: 48 89 df e8 1a 4a d6 f7 e9 dc fc ff ff e8 90 12 7e f7 eb 24 e8 89 12 7e f7 c7 04 24 f4 ff ff ff e9 e4 f5 ff ff e8 78 12 7e f7 <0f> 0b 0f 0b e9 cf f5 ff ff e8 6a 12 7e f7 48 8b 7c 24 08 4c 8b 7c RSP: 0018:ffffc900055aee00 EFLAGS: 00010283 RAX: ffffffff8a090b8e RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc90011824000 RSI: 000000000000a515 RDI: 000000000000a516 RBP: dffffc0000000000 R08: ffffffff911c55c7 R09: 1ffffffff2238ab8 R10: dffffc0000000000 R11: fffffbfff2238ab9 R12: 0000000000000001 R13: ffff888063c8a5d9 R14: ffff88807a172c70 R15: ffff88807a172ce8 FS: 00007f13a3bd36c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000005000 CR3: 000000004e4da000 CR4: 00000000003506e0 Call Trace: ieee80211_link_use_reserved_context+0x383/0x5c0 net/mac80211/chan.c:1927 __ieee80211_csa_finalize net/mac80211/cfg.c:3669 [inline] ieee80211_csa_finalize+0x5a6/0xf20 net/mac80211/cfg.c:3708 __ieee80211_channel_switch net/mac80211/cfg.c:3983 [inline] ieee80211_channel_switch+0xad5/0xe70 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