------------[ cut here ]------------ WARNING: CPU: 0 PID: 12 at net/mac80211/chan.c:92 ieee80211_chanctx_reserved_chandef net/mac80211/chan.c:90 [inline] WARNING: CPU: 0 PID: 12 at net/mac80211/chan.c:92 ieee80211_chsw_switch_hwconf net/mac80211/chan.c:1422 [inline] WARNING: CPU: 0 PID: 12 at net/mac80211/chan.c:92 ieee80211_vif_use_reserved_switch+0x10e8/0x28f0 net/mac80211/chan.c:1638 Modules linked in: CPU: 0 PID: 12 Comm: kworker/u4:1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: events_unbound cfg80211_wiphy_work 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 ea 3d d6 f7 e9 dc fc ff ff e8 d0 06 7e f7 eb 24 e8 c9 06 7e f7 c7 04 24 f4 ff ff ff e9 e4 f5 ff ff e8 b8 06 7e f7 <0f> 0b 0f 0b e9 cf f5 ff ff e8 aa 06 7e f7 48 8b 7c 24 08 4c 8b 7c RSP: 0018:ffffc90000117200 EFLAGS: 00010287 RAX: ffffffff8a09174e RBX: 0000000000000001 RCX: 0000000000100000 RDX: ffffc90017d19000 RSI: 0000000000004304 RDI: 0000000000004305 RBP: dffffc0000000000 R08: ffffffff911c65c7 R09: 1ffffffff2238cb8 R10: dffffc0000000000 R11: fffffbfff2238cb9 R12: 0000000000000001 R13: ffff88805c82a5d9 R14: ffff888079c5ac70 R15: ffff888079c5ace8 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2fe79f5ff8 CR3: 0000000061666000 CR4: 00000000003506f0 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 ieee80211_ibss_process_chanswitch+0x9d6/0xd70 net/mac80211/ibss.c:892 ieee80211_rx_mgmt_spectrum_mgmt net/mac80211/ibss.c:931 [inline] ieee80211_ibss_rx_queued_mgmt+0x1045/0x2c80 net/mac80211/ibss.c:1666 ieee80211_iface_process_skb net/mac80211/iface.c:1655 [inline] ieee80211_iface_work+0x717/0xc70 net/mac80211/iface.c:1709 cfg80211_wiphy_work+0x225/0x260 net/wireless/core.c:437 process_one_work kernel/workqueue.c:2653 [inline] process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2730 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2811 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293