Bug 300197 (CVE-2009-4308)

Summary:	Kernel: ext4 ext4_decode_error() NULL pointer dereference (CVE-2009-4308)
Product:	Gentoo Security	Reporter:	Alex Legler (RETIRED) <a3li>
Component:	Kernel	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=78f1ddbb498283c2445c11b0dfa666424c301803
Whiteboard:	[linux <2.6.31.8] [gp <2.6.31-9]
Package list:		Runtime testing required:	---

Description Alex Legler (RETIRED) archtester

2010-01-08 17:21:17 UTC

CVE-2009-4308 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4308):
  The ext4_decode_error function in fs/ext4/super.c in the ext4
  filesystem in the Linux kernel before 2.6.32 allows user-assisted
  remote attackers to cause a denial of service (NULL pointer
  dereference), and possibly have unspecified other impact, via a
  crafted read-only filesystem that lacks a journal.