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Bug 234803 (CVE-2008-3275) - Kernel: fix lookup on deleted directory (CVE-2008-3275)
Summary: Kernel: fix lookup on deleted directory (CVE-2008-3275)
Status: RESOLVED FIXED
Alias: CVE-2008-3275
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: High normal
Assignee: Gentoo Security
URL: http://git.kernel.org/?p=linux/kernel...
Whiteboard: [linux <2.6.25.15] [linux >=2.6.26 <2...
Keywords:
Depends on:
Blocks:
 
Reported: 2008-08-15 10:56 UTC by Robert Buchholz (RETIRED)
Modified: 2013-09-15 20:06 UTC (History)
1 user (show)

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Runtime testing required: ---

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Description Robert Buchholz (RETIRED) gentoo-dev 2008-08-15 10:56:24 UTC 
CVE-2008-3275 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-3275):
  The (1) real_lookup and (2) __lookup_hash functions in fs/namei.c in the vfs
  implementation in the Linux kernel before 2.6.25.15 does not prevent creation
  of a child dentry for a deleted (aka S_DEAD) directory, which allows local
  users to cause a denial of service ("overflow" of the UBIFS orphan area) via
  a series of attempted file creations within deleted directories.
Comment 1 Robert Buchholz (RETIRED) gentoo-dev 2008-08-15 10:57:53 UTC 
Also fixed in 2.6.25.15 and 2.6.26.2
Comment 2 kfm 2009-07-20 19:26:23 UTC 
hardened-kernel unaffected at present time. Removing alias.

PS: genpatches-2.6.25-10 included the 2.6.25.15 patch and genpatches-2.6.26-2
included the 2.6.26.2 patch