# drm/sysfb: simpledrm: Improve stride validation

CVE record · `CVE-2026-93244`

- **Identifiers:** `CVE-2026-93244`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 15:40 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: `7bfa5c7b28d66d89daf0808bf36ab7fe0e9e93a1 to before f69b81d1f70573ba68685a0a0a197613f5efc7cd` (git)
  - affected: `7bfa5c7b28d66d89daf0808bf36ab7fe0e9e93a1 to before 110dd054fd4af97fc3f47d7df9a016b07122cc04` (git)
  - affected: `7bfa5c7b28d66d89daf0808bf36ab7fe0e9e93a1 to before b09d27caf49ff584dbafdba3bb95487a75cb8824` (git)
  - affected: `7bfa5c7b28d66d89daf0808bf36ab7fe0e9e93a1 to before 6892f0a2f6b5990b9572ba043dd14dd4df6bb3f0` (git)
  - affected: `7bfa5c7b28d66d89daf0808bf36ab7fe0e9e93a1 to before bbdc6761c55662fb9ddf5ab580acb616131998fe` (git)
  - affected: `7bfa5c7b28d66d89daf0808bf36ab7fe0e9e93a1 to before df6533f11688aa30be3bb883c7637f4ffdbb7cbd` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.1`
  - unaffected: `before 6.1` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (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

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel's simpledrm driver (drm/sysfb) is affected in the 6.1 series. The source gives few details on who can trigger the flaw or what an attacker could do. Upgrade to Linux 6.1.191, 6.6.160, 6.12.112, 6.18.51, or a later release in the matching series.

Written 12 Nov 2026.

## 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th percentile, on 13 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93244](https://www.cve.org/CVERecord?id=CVE-2026-93244)
- [NVD: CVE-2026-93244](https://nvd.nist.gov/vuln/detail/CVE-2026-93244)

### References from the CNA

- <https://git.kernel.org/stable/c/f69b81d1f70573ba68685a0a0a197613f5efc7cd>
- <https://git.kernel.org/stable/c/110dd054fd4af97fc3f47d7df9a016b07122cc04>
- <https://git.kernel.org/stable/c/b09d27caf49ff584dbafdba3bb95487a75cb8824>
- <https://git.kernel.org/stable/c/6892f0a2f6b5990b9572ba043dd14dd4df6bb3f0>
- <https://git.kernel.org/stable/c/bbdc6761c55662fb9ddf5ab580acb616131998fe>
- <https://git.kernel.org/stable/c/df6533f11688aa30be3bb883c7637f4ffdbb7cbd>

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-2026-93244>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93244/>. Everything for agents: <https://agentprime.io/llms.txt>.