linux-kernel - Re: [PATCH] net/x25: Fix null-ptr-deref in x25

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Message-ID: <2638b7a4-4c19-ca4d-3931-7442378b3b30@web.de>
Date:   Tue, 28 Apr 2020 19:52:44 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     YueHaibing <yuehaibing@...wei.com>, linux-x25@...r.kernel.org,
        netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Allison Randal <allison@...utok.net>,
        Andrew Hendry <andrew.hendry@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Xin Tan <tanxin.ctf@...il.com>,
        Xiyu Yang <xiyuyang19@...an.edu.cn>
Subject: Re: [PATCH] net/x25: Fix null-ptr-deref in x25_disconnect

> We should check null before do x25_neigh_put in x25_disconnect,
> otherwise may cause null-ptr-deref like this:

Will it be clearer to use the term “null pointer dereference”
in the final commit subject?

Regards,
Markus