linux-kernel - Re: [syzbot] [wireless?] WARNING in __cfg80211_connect

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Date: Wed, 26 Jun 2024 17:16:24 -0700
From: syzbot <syzbot+d6eb9cee2885ec06f5e3@...kaller.appspotmail.com>
To: davem@...emloft.net, edumazet@...gle.com, johannes@...solutions.net, 
	kuba@...nel.org, linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org, 
	netdev@...r.kernel.org, pabeni@...hat.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [wireless?] WARNING in __cfg80211_connect_result (2)

syzbot has found a reproducer for the following issue on:

HEAD commit:    a6a6a9809411 net: Drop explicit initialization of struct i..
git tree:       net-next
console+strace: https://syzkaller.appspot.com/x/log.txt?x=1324ea82980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e78fc116033e0ab7
dashboard link: https://syzkaller.appspot.com/bug?extid=d6eb9cee2885ec06f5e3
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12a8b81a980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13d426c1980000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/5fb6ec98e2e9/disk-a6a6a980.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f39f26a93081/vmlinux-a6a6a980.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5997cea80d62/bzImage-a6a6a980.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d6eb9cee2885ec06f5e3@...kaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 35 at net/wireless/sme.c:846 __cfg80211_connect_result+0x19ea/0x21d0 net/wireless/sme.c:846
Modules linked in:
CPU: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.10.0-rc4-syzkaller-00937-ga6a6a9809411 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: cfg80211 cfg80211_event_work
RIP: 0010:__cfg80211_connect_result+0x19ea/0x21d0 net/wireless/sme.c:846
Code: a4 00 89 c3 31 ff 89 c6 e8 43 4f b2 f6 85 db 74 29 e8 0a 7b 98 f6 84 c0 74 27 e8 f1 4a b2 f6 e9 84 00 00 00 e8 e7 4a b2 f6 90 <0f> 0b 90 4c 89 ff 4c 89 f6 e8 68 23 00 00 eb 91 e8 d1 4a b2 f6 eb
RSP: 0018:ffffc90000ab79e0 EFLAGS: 00010293
RAX: ffffffff8ae3da39 RBX: 0000000000000000 RCX: ffff88801aefbc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ab7b00 R08: ffffffff8ae3d609 R09: 1ffffffff25f6cbd
R10: dffffc0000000000 R11: fffffbfff25f6cbe R12: ffff88802ac63098
R13: dffffc0000000000 R14: ffff88802ac63018 R15: ffff888022eeb000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200029c0 CR3: 0000000078998000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 cfg80211_process_wdev_events+0x356/0x510 net/wireless/util.c:1105
 cfg80211_process_rdev_events+0xac/0x110 net/wireless/util.c:1147
 cfg80211_event_work+0x2f/0x40 net/wireless/core.c:335
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>


---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.