linux-kernel - Re: [PATCH 1/2] SELinux: Fix lsm_get_self

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: <20240223.ieSh2aegurig@digikod.net>
Date: Fri, 23 Feb 2024 20:59:33 +0100
From: Mickaël Salaün <mic@...ikod.net>
To: Casey Schaufler <casey@...aufler-ca.com>, 
	John Johansen <john.johansen@...onical.com>, Paul Moore <paul@...l-moore.com>
Cc: James Morris <jmorris@...ei.org>, 
	"Serge E . Hallyn" <serge@...lyn.com>, linux-kernel@...r.kernel.org, 
	linux-security-module@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 1/2] SELinux: Fix lsm_get_self_attr()

On Fri, Feb 23, 2024 at 08:05:45PM +0100, Mickaël Salaün wrote:
> selinux_lsm_getattr() may not initialize the value's pointer in some
> case.  As for proc_pid_attr_read(), initialize this pointer to NULL in
> selinux_getselfattr() to avoid an UAF in the kfree() call.

Not UAF but NULL pointer dereference (both patches)...