netdev - Re: [syzbot] general protection fault in smc_pnet

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Date:   Thu, 31 Mar 2022 08:46:03 +0200
From:   Karsten Graul <kgraul@...ux.ibm.com>
To:     syzbot <syzbot+03e3e228510223dabd34@...kaller.appspotmail.com>,
        davem@...emloft.net, kuba@...nel.org, linux-kernel@...r.kernel.org,
        linux-s390@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] general protection fault in smc_pnet_add (2)

On 31/03/2022 02:48, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    d82a6c5ef9dc net: prestera: acl: make read-only array clie..
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=13862081700000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=cce8a73d5200f3c0
> dashboard link: https://syzkaller.appspot.com/bug?extid=03e3e228510223dabd34
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=167da879700000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12bb0fe1700000


dev.parent is not checked properly before dev_name() is called, I will provide a fix for this.