# scsi: ufs: core: Validate string descriptors

CVE record · `CVE-2026-92480`

- **Identifiers:** `CVE-2026-92480`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 30 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: `4b828fe156a662a4b6135019bf077040340f299b to before 22c076f72ad67d89dab58d9c97a17c33e8130e82` (git)
  - affected: `4b828fe156a662a4b6135019bf077040340f299b to before 566109f1ee4e389b4effab43b0ce1fdab302e9de` (git)
  - affected: `4b828fe156a662a4b6135019bf077040340f299b to before 02dd1a65dff842d9360a38ebe243dc8f6adbbaf5` (git)
  - affected: `4b828fe156a662a4b6135019bf077040340f299b to before f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4` (git)
  - affected: `4b828fe156a662a4b6135019bf077040340f299b to before 66da25277256b6bf4c3fdbf3c9bfd43324c9cf25` (git)
  - affected: `4b828fe156a662a4b6135019bf077040340f299b to before d96e83d028d7d8762e424e49c671d49ac2ecf14f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.4`
  - unaffected: `before 5.4` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 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

## Machine-written summary

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

> Linux kernel versions with the UFS core driver are affected by a flaw in how UFS string descriptors are validated. A UFS device could return a malformed string descriptor, causing the kernel to read beyond the descriptor buffer. The source gives few details on the exact impact or required access. The fix is in the upstream kernel stable releases; upgrade to a kernel version that includes these changes, such as 6.1.191, 6.6.160, 6.12.114, or 6.18.57 or later in their series. No workaround is listed.

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:** 0.0022, the 11th 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-2026-92480](https://www.cve.org/CVERecord?id=CVE-2026-92480)
- [NVD: CVE-2026-92480](https://nvd.nist.gov/vuln/detail/CVE-2026-92480)

### References from the CNA

- <https://git.kernel.org/stable/c/22c076f72ad67d89dab58d9c97a17c33e8130e82>
- <https://git.kernel.org/stable/c/566109f1ee4e389b4effab43b0ce1fdab302e9de>
- <https://git.kernel.org/stable/c/02dd1a65dff842d9360a38ebe243dc8f6adbbaf5>
- <https://git.kernel.org/stable/c/f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4>
- <https://git.kernel.org/stable/c/66da25277256b6bf4c3fdbf3c9bfd43324c9cf25>
- <https://git.kernel.org/stable/c/d96e83d028d7d8762e424e49c671d49ac2ecf14f>

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-2026-92480>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-92480/>. Everything for agents: <https://agentprime.io/llms.txt>.