linux-ext4 - Re: [PATCH 07/54] libext2fs: fix tdb.c mmap leak

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: <20150127160937.GG2453@thunk.org>
Date:	Tue, 27 Jan 2015 11:09:37 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 07/54] libext2fs: fix tdb.c mmap leak

On Mon, Jan 26, 2015 at 11:36:18PM -0800, Darrick J. Wong wrote:
> When undoing an expansion of an mmap'd database while cancelling a
> transaction, the tdb code prematurely decreases the variable that
> tracks the file size, which leads to a region leak during the
> subsequent unmap.  Fix this by maintaining a separate counter for the
> region size.
> 
> (This is probably unnecessary since e2undo was the only user of tdb
> transactions, but I suppose we could be proactive.)
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>

Applied, thanks.

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html