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Bug 261991 (CVE-2009-0859) - Kernel: fix shmctl(SHM_INFO) lockup with !CONFIG_SHMEM (CVE-2009-0859)
Summary: Kernel: fix shmctl(SHM_INFO) lockup with !CONFIG_SHMEM (CVE-2009-0859)
Alias: CVE-2009-0859
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
Whiteboard: [linux <] [linux >=2.6.28 <2...
Depends on:
Reported: 2009-03-10 16:11 UTC by Robert Buchholz (RETIRED)
Modified: 2013-09-15 20:06 UTC (History)
2 users (show)

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


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Description Robert Buchholz (RETIRED) gentoo-dev 2009-03-10 16:11:32 UTC
CVE-2009-0859 (
  The shm_get_stat function in ipc/shm.c in the shm subsystem in the
  Linux kernel before, when CONFIG_SHMEM is disabled,
  misinterprets the data type of an inode, which allows local users to
  cause a denial of service (system hang) via an SHM_INFO shmctl call,
  as demonstrated by running the ipcs program.