CVE-2012-5517

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-12-21 · updated 2026-06-16

Description

The online_pages function in mm/memory_hotplug.c in the Linux kernel before 3.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact in opportunistic circumstances by using memory that was hot-added by an administrator.

Affected products

Linux kernel: through 3.5.7; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+147)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=08dff7b7d629807dbb1f398c68dd9cd58dd657a1
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
http://rhn.redhat.com/errata/RHSA-2012-1580.html
http://www.kernel.org/pub/linux/kernel/v3.x/
http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2
http://www.openwall.com/lists/oss-security/2012/11/13/11
http://www.securityfocus.com/bid/56527
http://www.ubuntu.com/usn/USN-1671-1
http://www.ubuntu.com/usn/USN-1673-1
http://www.ubuntu.com/usn/USN-1677-1
http://www.ubuntu.com/usn/USN-1678-1
http://www.ubuntu.com/usn/USN-1679-1

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