# drm/panthor: harden firmware build-info bounds checks

CVE record · `CVE-2026-89826`

- **Identifiers:** `CVE-2026-89826`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:30 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: `2718d91816eeed03c09c8abe872e45f59078768c to before 5516f1acfd07564361cf306cc90a8e513df0f096` (git)
  - affected: `2718d91816eeed03c09c8abe872e45f59078768c to before 6ae19dce3e8c13ae73590b3f4311abe9f96bbae8` (git)
  - affected: `2718d91816eeed03c09c8abe872e45f59078768c to before 8321b093fa6c297b80586460ce6914d9655df170` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 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

- 7.1 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th percentile, on 14 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89826](https://www.cve.org/CVERecord?id=CVE-2026-89826)
- [NVD: CVE-2026-89826](https://nvd.nist.gov/vuln/detail/CVE-2026-89826)

### References from the CNA

- <https://git.kernel.org/stable/c/5516f1acfd07564361cf306cc90a8e513df0f096>
- <https://git.kernel.org/stable/c/6ae19dce3e8c13ae73590b3f4311abe9f96bbae8>
- <https://git.kernel.org/stable/c/8321b093fa6c297b80586460ce6914d9655df170>

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-2026-89826>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89826/>. Everything for agents: <https://agentprime.io/llms.txt>.