# PCI: altera: Protect root bus removal with rescan lock

CVE record · `CVE-2026-93821`

- **Identifiers:** `CVE-2026-93821`
- **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:** 3 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:02 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: `ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 to before cf9d84d1b6a7c3f3780c043df220a7e9e38137eb` (git)
  - affected: `ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 to before fc462f1bdeaea9789928cbfdf5e069ee559c7642` (git)
  - affected: `ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 to before 442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3` (git)
  - affected: `ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 to before 4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7` (git)
  - affected: `ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 to before c0cd65906e5f7e293ef2568c9524cc0a918333c3` (git)
  - affected: `ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 to before 7cbb8f2750d91e64caff89e164ac8280bb80bedc` (git)
  - affected: `ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22 to before a8759c8ac48c0419f5899e95a6ffc611b07c965b` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.3`
  - unaffected: `before 5.3` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (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: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2 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:** 0.0017, the 6th 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-2026-93821](https://www.cve.org/CVERecord?id=CVE-2026-93821)
- [NVD: CVE-2026-93821](https://nvd.nist.gov/vuln/detail/CVE-2026-93821)

### References from the CNA

- <https://git.kernel.org/stable/c/cf9d84d1b6a7c3f3780c043df220a7e9e38137eb>
- <https://git.kernel.org/stable/c/fc462f1bdeaea9789928cbfdf5e069ee559c7642>
- <https://git.kernel.org/stable/c/442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3>
- <https://git.kernel.org/stable/c/4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7>
- <https://git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3>
- <https://git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedc>
- <https://git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965b>

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-2026-93821>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93821/>. Everything for agents: <https://agentprime.io/llms.txt>.