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Bug 291905 (CVE-2009-3624) - Kernel: get_instantiation_keyring() DoS (CVE-2009-3624)
Summary: Kernel: get_instantiation_keyring() DoS (CVE-2009-3624)
Alias: CVE-2009-3624
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
Whiteboard: [linux <] [gp <2.6.31-7]
Depends on:
Reported: 2009-11-04 20:20 UTC by Alex Legler (RETIRED)
Modified: 2013-09-15 18:41 UTC (History)
2 users (show)

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


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Description Alex Legler (RETIRED) archtester Gentoo Infrastructure gentoo-dev Security 2009-11-04 20:20:35 UTC
CVE-2009-3624 (
  The get_instantiation_keyring function in security/keys/keyctl.c in
  the KEYS subsystem in the Linux kernel before 2.6.32-rc5 does not
  properly maintain the reference count of a keyring, which allows
  local users to gain privileges or cause a denial of service (OOPS)
  via vectors involving calls to this function without specifying a
  keyring by ID, as demonstrated by a series of keyctl request2 and
  keyctl list commands.