[syzbot] [wireless?] WARNING in ieee80211_free_keys (2)

[syzbot <syzbot+de3ee5362db09487ea37@syzkaller.appspotmail.com>]

Hello,

syzbot found the following issue on:

HEAD commit:    d2eedaa3909b Merge tag 'rtc-6.17' of git://git.kernel.org/..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=178886a2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=75e522434dc68cb9
dashboard link: https://syzkaller.appspot.com/bug?extid=de3ee5362db09487ea37
compiler:       Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/73ccac85e612/disk-d2eedaa3.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/33b13def715b/vmlinux-d2eedaa3.xz
kernel image: https://storage.googleapis.com/syzbot-assets/930b192c99ba/bzImage-d2eedaa3.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de3ee5362db09487ea37@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 12058 at net/mac80211/key.c:1163 ieee80211_free_keys+0x536/0x650 net/mac80211/key.c:1162
Modules linked in:
CPU: 0 UID: 0 PID: 12058 Comm: kworker/u8:17 Not tainted 6.16.0-syzkaller-11489-gd2eedaa3909b #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_keys+0x536/0x650 net/mac80211/key.c:1162
Code: 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 f9 3c c7 f6 90 0f 0b 90 e9 46 fc ff ff e8 eb 3c c7 f6 90 <0f> 0b 90 4c 8b 24 24 e9 7c fe ff ff e8 d9 3c c7 f6 e9 2f fe ff ff
RSP: 0000:ffffc90004aff040 EFLAGS: 00010293
RAX: ffffffff8af86d55 RBX: dffffc0000000000 RCX: ffff88802bd2da00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc90004aff0f0 R08: ffffc90004afede7 R09: 1ffff9200095fdbc
R10: dffffc0000000000 R11: fffff5200095fdbd R12: 0000000000000002
R13: ffff8880534569d0 R14: 1ffff1100a68ad3a R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888125c28000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcb75946040 CR3: 000000007e27c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ieee80211_do_stop+0xf47/0x1fb0 net/mac80211/iface.c:584
 ieee80211_stop+0x1b1/0x240 net/mac80211/iface.c:814
 __dev_close_many+0x361/0x6f0 net/core/dev.c:1755
 netif_close_many+0x225/0x410 net/core/dev.c:1780
 netif_close+0x158/0x210 net/core/dev.c:1797
 dev_close+0x10a/0x220 net/core/dev_api.c:220
 cfg80211_shutdown_all_interfaces+0xd4/0x220 net/wireless/core.c:277
 ieee80211_remove_interfaces+0x109/0x6e0 net/mac80211/iface.c:2364
 ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1664
 mac80211_hwsim_del_radio+0x275/0x460 drivers/net/wireless/virtual/mac80211_hwsim.c:5674
 hwsim_exit_net+0x584/0x640 drivers/net/wireless/virtual/mac80211_hwsim.c:6554
 ops_exit_list net/core/net_namespace.c:198 [inline]
 ops_undo_list+0x497/0x990 net/core/net_namespace.c:251
 cleanup_net+0x4c5/0x800 net/core/net_namespace.c:682
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>


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