linux-ext4 - [3.17.y-3.19.y][cherry-pick] ext4: fix indirect punch hole corruption

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

Date:	Fri, 20 Mar 2015 11:04:11 -0500
From:	Chris J Arges <chris.j.arges@...onical.com>
To:	linux-stable@...r.kernel.org
CC:	Theodore Ts'o <tytso@....edu>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-ext4@...r.kernel.org, Omar Sandoval <osandov@...ndov.com>
Subject: [3.17.y-3.19.y][cherry-pick] ext4: fix indirect punch hole corruption

Please include the following commit into 3.17.y, 3.18.y, and 3.19.y
stable trees.
commit 6f30b7e37a8239f9d27db626a1d3427bc7951908
Author: Omar Sandoval <osandov@...ndov.com>
Date:   Sat Feb 14 20:08:51 2015 -0500

    ext4: fix indirect punch hole corruption

Fixes: 4f579ae7de560e5f449587a6c3f02594d53d4d51

This bug fixes several corner case bugs related to hole punching on EXT
file systems that use indirect mapping. One case was reproduced here,
and I've tested with this patch and it resolves the issue:
http://bugs.launchpad.net/bugs/1292234

I've also been able to cherry-pick these cleanly into the aforementioned
trees and they build. I've only tested on 3.19. I believe Omar may have
additional test cases.

Thanks,
--chris j arges
--
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