Bug 217749

Summary:	Kernel: Linux hrtimer_forward negative value DoS (CVE-2007-6712)
Product:	Gentoo Security	Reporter:	Robert Buchholz (RETIRED) <rbu>
Component:	Kernel	Assignee:	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/chris/linux-2.6.git;a=commitdiff;h=13788ccc41ceea5893f9c747c59bc0b28f2416c2
Whiteboard:	[linux <2.6.16.47] [linux >=2.6.17 <2.6.20.4]
Package list:		Runtime testing required:	---

Description Robert Buchholz (RETIRED) gentoo-dev

2008-04-15 03:20:22 UTC

CVE-2007-6712 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2007-6712):
  Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel
  2.6.21-rc4, when running on 64-bit systems, allows local users to cause a
  denial of service (infinite loop) via a timer with a large expiry value,
  which causes the timer to always be expired.