linux-kernel - [syzbot] [wireless?] WARNING in ieee80211_set

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Message-ID: <67bef2dc.050a0220.38b081.00f9.GAE@google.com>
Date: Wed, 26 Feb 2025 02:54:20 -0800
From: syzbot <syzbot+91d7214a5ebebe3792cf@...kaller.appspotmail.com>
To: johannes@...solutions.net, linux-kernel@...r.kernel.org, 
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] [wireless?] WARNING in ieee80211_set_disassoc

Hello,

syzbot found the following issue on:

HEAD commit:    e5d3fd687aac Add linux-next specific files for 20250218
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=15b73498580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4e945b2fe8e5992f
dashboard link: https://syzkaller.appspot.com/bug?extid=91d7214a5ebebe3792cf
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ef079ccd2725/disk-e5d3fd68.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/99f2123d6831/vmlinux-e5d3fd68.xz
kernel image: https://storage.googleapis.com/syzbot-assets/eadfc9520358/bzImage-e5d3fd68.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+91d7214a5ebebe3792cf@...kaller.appspotmail.com

wlan1: deauthenticating from 08:02:11:00:00:00 by local choice (Reason: 3=DEAUTH_LEAVING)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 18257 at net/mac80211/mlme.c:3920 ieee80211_set_disassoc+0x1177/0x1620 net/mac80211/mlme.c:3920
Modules linked in:
CPU: 0 UID: 0 PID: 18257 Comm: kworker/u8:17 Not tainted 6.14.0-rc3-next-20250218-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_set_disassoc+0x1177/0x1620 net/mac80211/mlme.c:3920
Code: 00 00 00 48 3b 84 24 a0 00 00 00 0f 85 b1 04 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 2a 4b 2d f6 90 <0f> 0b 90 eb b4 e8 1f 4b 2d f6 90 0f 0b 90 eb a9 e8 14 4b 2d f6 90
RSP: 0018:ffffc9000b7aed20 EFLAGS: 00010293
RAX: ffffffff8b94b3b6 RBX: 0000000000000001 RCX: ffff88802ff78000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000b7aee10 R08: ffffffff8b94a435 R09: 1ffffffff207b48e
R10: dffffc0000000000 R11: fffffbfff207b48f R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88804fc70d80 R15: ffffc9000b7aeda8
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f651f2d7d60 CR3: 0000000068174000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ieee80211_mgd_deauth+0xa88/0x1080 net/mac80211/mlme.c:9754
 rdev_deauth net/wireless/rdev-ops.h:509 [inline]
 cfg80211_mlme_deauth+0x582/0x930 net/wireless/mlme.c:519
 cfg80211_sme_disconnect net/wireless/sme.c:667 [inline]
 cfg80211_disconnect+0x3e7/0x7e0 net/wireless/sme.c:1557
 cfg80211_netdev_notifier_call+0x1ba/0x1490 net/wireless/core.c:1540
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2180 [inline]
 call_netdevice_notifiers net/core/dev.c:2194 [inline]
 __dev_close_many+0x145/0x350 net/core/dev.c:1663
 dev_close_many+0x24e/0x4c0 net/core/dev.c:1714
 dev_close+0x1c0/0x2c0 net/core/dev.c:1740
 cfg80211_shutdown_all_interfaces+0xbb/0x1d0 net/wireless/core.c:277
 ieee80211_remove_interfaces+0x108/0x700 net/mac80211/iface.c:2285
 ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1681
 mac80211_hwsim_del_radio+0x2c4/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5665
 hwsim_exit_net+0x5c1/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6545
 ops_exit_list net/core/net_namespace.c:172 [inline]
 cleanup_net+0x812/0xd60 net/core/net_namespace.c:652
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd30 kernel/workqueue.c:3400
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>


---
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