CVE-2011-1747

Severity: medium (CVSS 4.7 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: 2011-05-09 · updated 2026-06-16
Weakness: CWE-399

Description

The agp subsystem in the Linux kernel 2.6.38.5 and earlier does not properly restrict memory allocation by the (1) AGPIOC_RESERVE and (2) AGPIOC_ALLOCATE ioctls, which allows local users to cause a denial of service (memory consumption) by making many calls to these ioctls.

Affected products

Linux kernel: before 2.6.38.5 — fixed in 2.6.38.5

How to fix

Upgrade to a fixed version: Linux kernel 2.6.38.5. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b522f02184b413955f3bc952e3776ce41edc6355
http://openwall.com/lists/oss-security/2011/04/21/4
http://openwall.com/lists/oss-security/2011/04/22/10
http://openwall.com/lists/oss-security/2011/04/22/11
http://openwall.com/lists/oss-security/2011/04/22/7
http://openwall.com/lists/oss-security/2011/04/22/8
http://openwall.com/lists/oss-security/2011/04/22/9
http://securitytracker.com/id?1025441
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5
http://www.securityfocus.com/bid/47832
https://bugzilla.redhat.com/show_bug.cgi?id=698999
https://lkml.org/lkml/2011/4/14/294

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