[v6.6] WARNING in ieee80211_ibss_csa_beacon (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 1e89a1be4fe9 Linux 6.6.117
git tree: linux-6.6.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1034d0c2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=12606d4b8832c7e4
dashboard link: https://syzkaller.appspot.com/bug?extid=7627b649116aa7c9bd3a
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ad3647e47b66/disk-1e89a1be.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/d6f7ba94aea7/vmlinux-1e89a1be.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e08af2290355/bzImage-1e89a1be.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7627b6...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 1 PID: 9126 at net/mac80211/ibss.c:501 ieee80211_ibss_csa_beacon+0x5bd/0x6a0 net/mac80211/ibss.c:501
Modules linked in:
CPU: 1 PID: 9126 Comm: kworker/u4:12 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:ieee80211_ibss_csa_beacon+0x5bd/0x6a0 net/mac80211/ibss.c:501
Code: f7 c6 05 0d 55 50 04 01 48 c7 c7 80 86 be 8b be fe 01 00 00 48 c7 c2 20 87 be 8b e8 1d e1 82 f7 e9 5f fe ff ff e8 73 c5 a0 f7 <0f> 0b b8 ea ff ff ff e9 7a ff ff ff e8 62 c5 a0 f7 0f 0b e9 b2 fa
RSP: 0018:ffffc900034372e0 EFLAGS: 00010287
RAX: ffffffff89e4db0d RBX: ffff888021468700 RCX: 0000000000100000
RDX: ffffc90017ddc000 RSI: 0000000000002417 RDI: 0000000000002418
RBP: 1ffff1100b85a2b3 R08: ffffffff90da95c7 R09: 1ffffffff21b52b8
R10: dffffc0000000000 R11: fffffbfff21b52b9 R12: ffffc900034374c0
R13: ffff88805c2d1598 R14: ffff88805c2d1a88 R15: ffff88805c2d0c80
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed21ff8 CR3: 000000007539f000 CR4: 00000000003506e0
Call Trace:
<TASK>
ieee80211_set_csa_beacon+0x77e/0xa10 net/mac80211/cfg.c:3836
__ieee80211_channel_switch net/mac80211/cfg.c:3964 [inline]
ieee80211_channel_switch+0x7c2/0xe30 net/mac80211/cfg.c:4009
ieee80211_ibss_process_chanswitch+0x938/0xb60 net/mac80211/ibss.c:892
ieee80211_rx_mgmt_spectrum_mgmt net/mac80211/ibss.c:931 [inline]
ieee80211_ibss_rx_queued_mgmt+0xf98/0x2ac0 net/mac80211/ibss.c:1666
ieee80211_iface_process_skb net/mac80211/iface.c:1651 [inline]
ieee80211_iface_work+0x717/0xc70 net/mac80211/iface.c:1705
cfg80211_wiphy_work+0x225/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:2634 [inline]
process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
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
</TASK>


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