300203 – Kernel: fuse_ioctl_copy_user() DoS (CVE-2009-4410)

Bug 300203 - Kernel: fuse_ioctl_copy_user() DoS (CVE-2009-4410)

Summary: Kernel: fuse_ioctl_copy_user() DoS (CVE-2009-4410)

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Security
Classification:	Unclassified
Component:	Kernel (show other bugs)
Hardware:	All Linux

Importance:	High normal (vote)
Assignee:	Gentoo Security

URL:	http://git.kernel.org/?p=linux/kernel...
Whiteboard:	[linux <2.6.31.6] [gp <2.6.31-7]
Keywords:

Depends on:
Blocks:

Reported:	2010-01-08 17:29 UTC by Alex Legler (RETIRED)
Modified:	2013-09-15 18:49 UTC (History)
CC List:	0 users

See Also:
Package list:
Runtime testing required:	---

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Description Alex Legler (RETIRED) archtester

2010-01-08 17:29:12 UTC

CVE-2009-4410 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4410):
  The fuse_ioctl_copy_user function in the ioctl handler in
  fs/fuse/file.c in the Linux kernel 2.6.29-rc1 through 2.6.30.y uses
  the wrong variable in an argument to the kunmap function, which
  allows local users to cause a denial of service (panic) via unknown
  vectors.