linux-kernel - Re: [syzbot] [net?] general protection fault in htb_qlen

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Message-ID: <f14f4c0f-dc5d-454e-b5ef-1143b5a8f512@mojatatu.com>
Date: Thu, 3 Jul 2025 18:06:11 -0300
From: Victor Nogueira <victor@...atatu.com>
To: syzbot <syzbot+d8b58d7b0ad89a678a16@...kaller.appspotmail.com>,
 davem@...emloft.net, edumazet@...gle.com, horms@...nel.org,
 jhs@...atatu.com, jiri@...nulli.us, kuba@...nel.org,
 linux-kernel@...r.kernel.org, netdev@...r.kernel.org, pabeni@...hat.com,
 syzkaller-bugs@...glegroups.com, xiyou.wangcong@...il.com
Subject: Re: [syzbot] [net?] general protection fault in htb_qlen_notify

On 7/3/25 08:32, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit:    bd475eeaaf3c Merge branch '200GbE' of git://git.kernel.org..
> git tree:       net
> console output: https://syzkaller.appspot.com/x/log.txt?x=15cc0582580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=36b0e72cad5298f8
> dashboard link: https://syzkaller.appspot.com/bug?extid=d8b58d7b0ad89a678a16
> compiler:       Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1113748c580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10909ebc580000

#syz test
View attachment "htb_null_deref_fix.patch" of type "text/x-patch" (1222 bytes)