------------[ cut here ]------------
WARNING: CPU: 1 PID: 12339 at net/mac80211/ibss.c:504 ieee80211_ibss_csa_beacon+0x5f9/0x740 net/mac80211/ibss.c:504
Modules linked in:
CPU: 1 PID: 12339 Comm: kworker/u4:9 Not tainted 5.11.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy16 ieee80211_csa_finalize_work
RIP: 0010:ieee80211_ibss_csa_beacon+0x5f9/0x740 net/mac80211/ibss.c:504
Code: ff e8 fb cc a7 00 31 ff 89 c5 89 c6 e8 20 0e 21 f9 85 ed 0f 85 77 fa ff ff e8 93 06 21 f9 0f 0b e9 6b fa ff ff e8 87 06 21 f9 <0f> 0b 41 bd ea ff ff ff e9 e1 fd ff ff e8 35 c1 63 f9 e9 82 fa ff
RSP: 0018:ffffc9000c117c50 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888025ca0bc0 RCX: 0000000000000000
RDX: ffff88802028b780 RSI: ffffffff8851c339 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000001 R09: ffffffff8ed31887
R10: fffffbfff1da6310 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888025ca18b0 R14: ffff888065d48c80 R15: ffff888025ca1208
FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000029993000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ieee80211_set_after_csa_beacon net/mac80211/cfg.c:3122 [inline]
 __ieee80211_csa_finalize+0x504/0xbf0 net/mac80211/cfg.c:3178
 ieee80211_csa_finalize net/mac80211/cfg.c:3201 [inline]
 ieee80211_csa_finalize_work+0x131/0x170 net/mac80211/cfg.c:3226
 process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296