linux-kernel - Re: [syzbot] general protection fault in tls_strp_load_anchor_with

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Message-ID: <20220818182941.5d78a7f8@kernel.org>
Date:   Thu, 18 Aug 2022 18:29:41 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     syzbot <syzbot+7b9133d0ed61f27a4f7d@...kaller.appspotmail.com>
Cc:     borisp@...dia.com, davem@...emloft.net, edumazet@...gle.com,
        john.fastabend@...il.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, pabeni@...hat.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] general protection fault in
 tls_strp_load_anchor_with_queue

On Wed, 17 Aug 2022 23:54:30 -0700 syzbot wrote:
> syzbot found the following issue on:
> 
> HEAD commit:    7ebfc85e2cd7 Merge tag 'net-6.0-rc1' of git://git.kernel.o..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1750b16b080000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=924833c12349a8c0
> dashboard link: https://syzkaller.appspot.com/bug?extid=7b9133d0ed61f27a4f7d
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> 
> Unfortunately, I don't have any reproducer for this issue yet.
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+7b9133d0ed61f27a4f7d@...kaller.appspotmail.com

Must have gone thru init and failed to allocate the skb, so:

#syz dup: WARNING in tls_strp_done