[syzbot] [wireless?] WARNING in __ieee80211_start_scan (2)

[syzbot <syzbot+f961b9f94edbc266f1f8@syzkaller.appspotmail.com>]

Hello,

syzbot found the following issue on:

HEAD commit:    627366c51145 ptp: ocp: fix resource freeing order
git tree:       net
console output: https://syzkaller.appspot.com/x/log.txt?x=1114f186580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=65472e27d1590a04
dashboard link: https://syzkaller.appspot.com/bug?extid=f961b9f94edbc266f1f8
compiler:       Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/fdf7eb944feb/disk-627366c5.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ab07a79e10f6/vmlinux-627366c5.xz
kernel image: https://storage.googleapis.com/syzbot-assets/270e46d829a1/bzImage-627366c5.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f961b9f94edbc266f1f8@syzkaller.appspotmail.com

------------[ cut here ]------------
!ieee80211_prep_hw_scan(sdata)
WARNING: net/mac80211/scan.c:879 at __ieee80211_start_scan+0x1336/0x1d40 net/mac80211/scan.c:879, CPU#0: syz.0.5003/24116
Modules linked in:
CPU: 0 UID: 0 PID: 24116 Comm: syz.0.5003 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__ieee80211_start_scan+0x1336/0x1d40 net/mac80211/scan.c:879
Code: 06 90 e8 bd 74 b0 f6 48 83 fd 09 0f 84 41 07 00 00 83 fd 03 0f 84 3f 07 00 00 e8 25 6f b0 f6 e9 d5 f2 ff ff e8 1b 6f b0 f6 90 <0f> 0b 90 e9 0d fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 53 fa
RSP: 0018:ffffc9000674f170 EFLAGS: 00010293
RAX: ffffffff8b154795 RBX: ffff888053bf8e40 RCX: ffff888079661f00
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: ffff88804acc3024 R08: ffffffff903034f7 R09: 1ffffffff206069e
R10: dffffc0000000000 R11: fffffbfff206069f R12: ffff88804acc3060
R13: dffffc0000000000 R14: ffff88805c5a0f20 R15: ffff88805c5a2a88
FS:  00007fe61492d6c0(0000) GS:ffff8881252a0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe613987cc0 CR3: 0000000075924000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rdev_scan+0x147/0x300 net/wireless/rdev-ops.h:467
 nl80211_trigger_scan+0x1aa1/0x1f50 net/wireless/nl80211.c:11046
 genl_family_rcv_msg_doit+0x22a/0x330 net/netlink/genetlink.c:1114
 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline]
 genl_rcv_msg+0x61c/0x7a0 net/netlink/genetlink.c:1209
 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2555
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1899
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg net/socket.c:802 [inline]
 ____sys_sendmsg+0x972/0x9f0 net/socket.c:2699
 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2753
 __sys_sendmsg net/socket.c:2785 [inline]
 __do_sys_sendmsg net/socket.c:2790 [inline]
 __se_sys_sendmsg net/socket.c:2788 [inline]
 __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2788
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe61399ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe61492d028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe613c15fa0 RCX: 00007fe61399ce59
RDX: 0000000004000000 RSI: 0000200000000900 RDI: 0000000000000003
RBP: 00007fe61492d090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fe613c16038 R14: 00007fe613c15fa0 R15: 00007fff3acb29d8
 </TASK>


---
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