# xhci: fix lost bounce buffers on TDs spanning several ring segments

CVE record · `CVE-2026-90015`

- **Identifiers:** `CVE-2026-90015`
- **State:** Confirmed
- **Severity:** No CVSS score
- **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, 10:33 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: `f9c589e142d04b8a19eb382162f804d17102b5ed to before c8124b28f12dbdd126118e63d0ebf8093a01fb81` (git)
  - affected: `f9c589e142d04b8a19eb382162f804d17102b5ed to before e04d5304a248e5d2a7f4faa87541644bdd320cfb` (git)
  - affected: `f9c589e142d04b8a19eb382162f804d17102b5ed to before a1629dfb011446d02905778f6df19f14c5f4f3b3` (git)
  - affected: `f9c589e142d04b8a19eb382162f804d17102b5ed to before 43239fc6dfb62c50ae1b9c0e82bac0f8cd2e285c` (git)
  - affected: `f9c589e142d04b8a19eb382162f804d17102b5ed to before 3c9a2b5a4f1183696f02ac280ced1d34afb409b1` (git)
  - affected: `f9c589e142d04b8a19eb382162f804d17102b5ed to before efaab8938fb92979be6df359f7d1a43fb7e4717d` (git)
  - affected: `f9c589e142d04b8a19eb382162f804d17102b5ed to before 7236bbd2cb7d9fc0eda896bbd34790341e2a4377` (git)
  - affected: `f9c589e142d04b8a19eb382162f804d17102b5ed to before ff44dfb03a293bf30e31f98772a1dd316a6071d1` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.8`
  - unaffected: `before 4.8` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 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

## 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:** 0.0022, the 12th 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90015](https://www.cve.org/CVERecord?id=CVE-2026-90015)
- [NVD: CVE-2026-90015](https://nvd.nist.gov/vuln/detail/CVE-2026-90015)

### References from the CNA

- <https://git.kernel.org/stable/c/c8124b28f12dbdd126118e63d0ebf8093a01fb81>
- <https://git.kernel.org/stable/c/e04d5304a248e5d2a7f4faa87541644bdd320cfb>
- <https://git.kernel.org/stable/c/a1629dfb011446d02905778f6df19f14c5f4f3b3>
- <https://git.kernel.org/stable/c/43239fc6dfb62c50ae1b9c0e82bac0f8cd2e285c>
- <https://git.kernel.org/stable/c/3c9a2b5a4f1183696f02ac280ced1d34afb409b1>
- <https://git.kernel.org/stable/c/efaab8938fb92979be6df359f7d1a43fb7e4717d>
- <https://git.kernel.org/stable/c/7236bbd2cb7d9fc0eda896bbd34790341e2a4377>
- <https://git.kernel.org/stable/c/ff44dfb03a293bf30e31f98772a1dd316a6071d1>

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-2026-90015>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90015/>. Everything for agents: <https://agentprime.io/llms.txt>.