# HID: amd_sfh: Validate PCI BAR size before mapping

CVE record · `CVE-2026-98640`

- **Identifiers:** `CVE-2026-98640`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:20 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: `4f567b9f8141a86c7d878fadf136e5d1408e3e61 to before 92bf2883da0306ab9d1eb794acd1058fc5088ebc` (git)
  - affected: `4f567b9f8141a86c7d878fadf136e5d1408e3e61 to before 7b3747d77767f066ccf4a9e8e3a8381643ab5368` (git)
  - affected: `4f567b9f8141a86c7d878fadf136e5d1408e3e61 to before 5ff24aa7af0bca0780fe4e6effce902065f2c0a7` (git)
  - affected: `4f567b9f8141a86c7d878fadf136e5d1408e3e61 to before dc687489131559ee52f447592f6d039a5a013061` (git)
  - affected: `4f567b9f8141a86c7d878fadf136e5d1408e3e61 to before 5f9e2ecb725adced013fbf5f94b9f185fad2e7d9` (git)
  - affected: `4f567b9f8141a86c7d878fadf136e5d1408e3e61 to before ee25833f037fa22d23ffdbfeebabe3579e8a0346` (git)
  - affected: `4f567b9f8141a86c7d878fadf136e5d1408e3e61 to before 65bcc5f89704efe5b9d69d4ea2c1002d90c31382` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.11`
  - unaffected: `before 5.11` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 10th percentile, on 7 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98640](https://www.cve.org/CVERecord?id=CVE-2026-98640)
- [NVD: CVE-2026-98640](https://nvd.nist.gov/vuln/detail/CVE-2026-98640)

### References from the CNA

- <https://git.kernel.org/stable/c/92bf2883da0306ab9d1eb794acd1058fc5088ebc>
- <https://git.kernel.org/stable/c/7b3747d77767f066ccf4a9e8e3a8381643ab5368>
- <https://git.kernel.org/stable/c/5ff24aa7af0bca0780fe4e6effce902065f2c0a7>
- <https://git.kernel.org/stable/c/dc687489131559ee52f447592f6d039a5a013061>
- <https://git.kernel.org/stable/c/5f9e2ecb725adced013fbf5f94b9f185fad2e7d9>
- <https://git.kernel.org/stable/c/ee25833f037fa22d23ffdbfeebabe3579e8a0346>
- <https://git.kernel.org/stable/c/65bcc5f89704efe5b9d69d4ea2c1002d90c31382>

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-2026-98640>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98640/>. Everything for agents: <https://agentprime.io/llms.txt>.