# swiotlb: Preserve allocation virtual address for dynamic pools

CVE record · `CVE-2026-90387`

- **Identifiers:** `CVE-2026-90387`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:09 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: `79636caad3618e2b38457f6e298c9b31ba82b489 to before 68bf3ebd8e7020dae58e8aa14c7d482738bff9a8` (git)
  - affected: `79636caad3618e2b38457f6e298c9b31ba82b489 to before 45507dcb0847e96add4455274b12df0eca6590b4` (git)
  - affected: `79636caad3618e2b38457f6e298c9b31ba82b489 to before 35e0103177826430b5df888b1506239d41e76ab5` (git)
  - affected: `79636caad3618e2b38457f6e298c9b31ba82b489 to before c1f4d7763cdf1b9e0d35c14aa6f52d0512a36319` (git)
  - affected: `79636caad3618e2b38457f6e298c9b31ba82b489 to before 57d29044d0f29a76c6ec0c112c8c7371d5608dc7` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.6`
  - unaffected: `before 6.6` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90387](https://www.cve.org/CVERecord?id=CVE-2026-90387)
- [NVD: CVE-2026-90387](https://nvd.nist.gov/vuln/detail/CVE-2026-90387)

### References from the CNA

- <https://git.kernel.org/stable/c/68bf3ebd8e7020dae58e8aa14c7d482738bff9a8>
- <https://git.kernel.org/stable/c/45507dcb0847e96add4455274b12df0eca6590b4>
- <https://git.kernel.org/stable/c/35e0103177826430b5df888b1506239d41e76ab5>
- <https://git.kernel.org/stable/c/c1f4d7763cdf1b9e0d35c14aa6f52d0512a36319>
- <https://git.kernel.org/stable/c/57d29044d0f29a76c6ec0c112c8c7371d5608dc7>

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-2026-90387>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90387/>. Everything for agents: <https://agentprime.io/llms.txt>.