linux-kernel - Re: [PATCH] [cgroup/testing] cg_read_strcmp: Fix null pointer dereference

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20200725202316.GA349701@chrisdown.name>
Date:   Sat, 25 Jul 2020 21:23:16 +0100
From:   Chris Down <chris@...isdown.name>
To:     Gaurav Singh <gaurav1086@...il.com>
Cc:     Shuah Khan <shuah@...nel.org>, Tejun Heo <tj@...nel.org>,
        Michal Koutný <mkoutny@...e.com>,
        Roman Gushchin <guro@...com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christian Brauner <christian.brauner@...ntu.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] [cgroup/testing] cg_read_strcmp: Fix null pointer
 dereference

Gaurav Singh writes:
>Passing NULL in strcmp will cause a segmentation fault.
>Fix this by returning -1 if expected is NULL pointer.

Did you actually encounter this while running the tests?