------------[ cut here ]------------ WARNING: CPU: 0 PID: 1139 at net/mac80211/chan.c:92 ieee80211_chanctx_reserved_chandef net/mac80211/chan.c:90 [inline] WARNING: CPU: 0 PID: 1139 at net/mac80211/chan.c:92 ieee80211_chsw_switch_hwconf net/mac80211/chan.c:1422 [inline] WARNING: CPU: 0 PID: 1139 at net/mac80211/chan.c:92 ieee80211_vif_use_reserved_switch+0x110e/0x2900 net/mac80211/chan.c:1638 Modules linked in: CPU: 0 PID: 1139 Comm: kworker/u4:9 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Workqueue: phy4 ieee80211_csa_finalize_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+0x110e/0x2900 net/mac80211/chan.c:1638 Code: 48 89 df e8 a4 8d d8 f7 e9 d6 fc ff ff e8 4a 19 80 f7 eb 24 e8 43 19 80 f7 c7 04 24 f4 ff ff ff e9 cc f5 ff ff e8 32 19 80 f7 <0f> 0b 0f 0b e9 b7 f5 ff ff e8 24 19 80 f7 48 8b 7c 24 08 4c 8b 74 RSP: 0018:ffffc9000459f9c0 EFLAGS: 00010293 RAX: ffffffff8a06c812 RBX: 0000000000000001 RCX: ffff888023d53c00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffff88805c73162f R09: 1ffff1100b8e62c5 R10: dffffc0000000000 R11: ffffed100b8e62c6 R12: 0000000000000001 R13: ffff88805c732659 R14: ffff88801c71ad48 R15: ffff888023a49700 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c42b043 CR3: 000000007e076000 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_csa_finalize_work+0xf6/0x140 net/mac80211/cfg.c:3733 process_one_work kernel/workqueue.c:2653 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730 worker_thread+0xa5e/0xfe0 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 irq event stamp: 213143 hardirqs last enabled at (213145): [] vprintk_store+0x9fb/0xd50 kernel/printk/printk.c:2297 hardirqs last disabled at (213146): [] vprintk_store+0x194/0xd50 kernel/printk/printk.c:2206 softirqs last enabled at (213116): [] __do_softirq kernel/softirq.c:612 [inline] softirqs last enabled at (213116): [] invoke_softirq kernel/softirq.c:452 [inline] softirqs last enabled at (213116): [] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 softirqs last disabled at (213079): [] __do_softirq kernel/softirq.c:612 [inline] softirqs last disabled at (213079): [] invoke_softirq kernel/softirq.c:452 [inline] softirqs last disabled at (213079): [] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 ---[ end trace 0000000000000000 ]---