------------[ cut here ]------------
WARNING: CPU: 1 PID: 2954 at net/mac80211/ibss.c:504 ieee80211_ibss_csa_beacon+0x5f9/0x740 net/mac80211/ibss.c:504
Modules linked in:
CPU: 1 PID: 2954 Comm: kworker/u16:1 Not tainted 5.11.0-rc3-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Workqueue: phy8 ieee80211_csa_finalize_work
RIP: 0010:ieee80211_ibss_csa_beacon+0x5f9/0x740 net/mac80211/ibss.c:504
Code: ff e8 7b e5 a7 00 31 ff 89 c5 89 c6 e8 90 58 20 f9 85 ed 0f 85 77 fa ff ff e8 63 52 20 f9 0f 0b e9 6b fa ff ff e8 57 52 20 f9 <0f> 0b 41 bd ea ff ff ff e9 e1 fd ff ff e8 85 d0 62 f9 e9 82 fa ff
RSP: 0018:ffffc9000ae6fc50 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88806d8f0bc0 RCX: 0000000000000000
RDX: ffff888012c91a00 RSI: ffffffff885279b9 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000001 R09: ffffffff8ee5a88f
R10: fffffbfff1dcb511 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88806d8f18b0 R14: ffff88806f0f0c80 R15: ffff88806d8f1208
FS:  0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38bb14cdb8 CR3: 000000006c081000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
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