linux-kernel - Re: KASAN: use-after-free Read in rds_find

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Message-ID: <d91da249-5a0f-7a1f-cfd5-68f10f0a2fc1@oracle.com>
Date:   Sat, 30 Dec 2017 11:41:48 -0800
From:   "santosh.shilimkar@...cle.com" <santosh.shilimkar@...cle.com>
To:     syzbot <syzbot+93a5839deb355537440f@...kaller.appspotmail.com>,
        linux-rdma@...r.kernel.org, syzkaller-bugs@...glegroups.com
Cc:     davem@...emloft.net, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, rds-devel@....oracle.com
Subject: Re: KASAN: use-after-free Read in rds_find_bound

On 12/30/17 1:17 AM, syzbot wrote:
> Hello,
> 
> syzkaller hit the following crash on 
> fba961ab29e5ffb055592442808bb0f7962e05da
> git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/master
> compiler: gcc (GCC) 7.1.1 20170620
> .config is attached
> Raw console output is attached.
> Unfortunately, I don't have any reproducer for this bug yet.
> 
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+93a5839deb355537440f@...kaller.appspotmail.com

Posted a fix[1] for above issue. Didn't test it but looks straight
forward.

Regards,
Santosh