linux-ext4 - [PATCH 0/2] random ext4 ea

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-next>] [day] [month] [year] [list]

Date:   Thu, 26 Apr 2018 19:20:25 +0800
From:   Eryu Guan <guaneryu@...il.com>
To:     linux-ext4@...r.kernel.org
Cc:     "Darrick J. Wong" <darrick.wong@...cle.com>,
        Theodore Ts'o <tytso@....edu>,
        Tahsin Erdogan <tahsin@...gle.com>,
        Eryu Guan <guaneryu@...il.com>
Subject: [PATCH 0/2] random ext4 ea_inode fixes

I hit two bugs in ext4 ea_inode feature when testing Darrick's new test
case[1] (which is still in review & revision process). The first bug is
premature ENOSPC, and the second one is a refcount corruption.

I've tested the fixes with fstests and xattr related syscall tests in
LTP, and tests all passed.

Thanks,
Eryu

[1] [PATCH] generic: test XATTR_REPLACE doesn't take the fs down
https://www.spinics.net/lists/linux-xfs/msg17394.html

Eryu Guan (2):
  ext4: use XATTR_CREATE in ext4_initxattrs()
  ext4: use raw i_version value for ea_inode

 fs/ext4/inode.c          | 24 ++++++++++++++++++++++--
 fs/ext4/xattr_security.c |  2 +-
 2 files changed, 23 insertions(+), 3 deletions(-)

-- 
2.14.3