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Bug 237408 (CVE-2007-6716)

Summary: Linux <2.6.23 dio: zero struct dio with kzalloc instead of manually (CVE-2007-6716)
Product: Gentoo Security Reporter: Robert Buchholz (RETIRED) <rbu>
Component: KernelAssignee: Gentoo Security <security>
Status: RESOLVED FIXED    
Severity: normal CC: kernel
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=848c4dd5153c7a0de55470ce99a8e13a63b4703f
Whiteboard: [linux <2.6.23]
Package list:
Runtime testing required: ---

Description Robert Buchholz (RETIRED) gentoo-dev 2008-09-11 17:41:12 UTC
CVE-2007-6716 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2007-6716):
  fs/direct-io.c in the dio subsystem in the Linux kernel before 2.6.23
  does not properly zero out the dio struct, which allows local users
  to cause a denial of service (OOPS), as demonstrated by a certain fio
  test.
Comment 1 kfm 2009-07-20 19:59:13 UTC
hardened-kernel unaffected at present time (oldest version is based on 2.6.25). Removing alias.