linux-kernel - Re: [PATCH 1/1] __send_signal: pass q->info, not info, to userns_fixup_signal

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] [day] [month] [year] [list]

Date:	Mon, 21 Nov 2011 16:45:35 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Serge Hallyn <serge.hallyn@...onical.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>, richard@....at,
	containers@...ts.linux-foundation.org, oleg@...hat.com,
	eparis@...hat.com, linux-kernel@...r.kernel.org,
	dhowells@...hat.com
Subject: Re: [PATCH 1/1] __send_signal: pass q->info, not info, to
 userns_fixup_signal_uid (v2)

On Sat, 19 Nov 2011 17:06:49 +0100
Jiri Slaby <jirislaby@...il.com> wrote:

> On 11/19/2011 01:41 AM, Serge Hallyn wrote:
> > Eric Biederman pointed out that passing info is a bug and could lead
> > to a NULL pointer deref to boot.
> 
> It would be great if you could describe what bug you are fixing in fact
> in the commit log. "Something that could lead to a bug" is not helpful
> at all.
> 
> A link to the thread where Eric pointed *that* out would be enough.

What Serge is secretly hiding from everyone is that this patch is a
fixup against his earlier "user namespace: make signal.c respect user
namespaces v5".  So the fix isn't very interesting for people who
aren't running that patch.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/