# drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check

CVE record · `CVE-2024-56778`

- **Identifiers:** `CVE-2024-56778`
- **State:** Confirmed
- **Severity:** CVSS 5.5 Medium
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-754](https://cwe.mitre.org/data/definitions/754.html)
- **Tags:** [CWE-754](https://agentprime.io/advisories/tag/cwe-754.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 8 Jan 2025
- **Updated:** 11 May 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 8 Jan 2025, 17:49 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `dd86dc2f9ae1102f46115be1f1422265c15540f1 to before 31c857e7496d34e5a32a6f75bc024d0b06fd646a` (git)
  - affected: `dd86dc2f9ae1102f46115be1f1422265c15540f1 to before 6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f` (git)
  - affected: `dd86dc2f9ae1102f46115be1f1422265c15540f1 to before 82a5312f874fb18f045d9658e9bd290e3b0621c0` (git)
  - affected: `dd86dc2f9ae1102f46115be1f1422265c15540f1 to before 837eb99ad3340c7a9febf454f41c8e3edb68ac1e` (git)
  - affected: `dd86dc2f9ae1102f46115be1f1422265c15540f1 to before c1ab40a1fdfee732c7e6ff2fb8253760293e47e8` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.6`
  - unaffected: `before 4.6` (semver)
  - unaffected: `5.15.174 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.120 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.64 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.4 to 6.12.*, inclusive` (semver)
  - unaffected: `6.13 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 5.5 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 11th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 8 Jan 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2024-56778](https://www.cve.org/CVERecord?id=CVE-2024-56778)
- [NVD: CVE-2024-56778](https://nvd.nist.gov/vuln/detail/CVE-2024-56778)

### References from the CNA

- <https://git.kernel.org/stable/c/31c857e7496d34e5a32a6f75bc024d0b06fd646a>
- <https://git.kernel.org/stable/c/6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f>
- <https://git.kernel.org/stable/c/82a5312f874fb18f045d9658e9bd290e3b0621c0>
- <https://git.kernel.org/stable/c/837eb99ad3340c7a9febf454f41c8e3edb68ac1e>
- <https://git.kernel.org/stable/c/c1ab40a1fdfee732c7e6ff2fb8253760293e47e8>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2024-56778>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2024-56778/>. Everything for agents: <https://agentprime.io/llms.txt>.