# ext4: fix buffer_head leak in ext4_init_orphan_info

CVE record · `CVE-2026-92494`

- **Identifiers:** `CVE-2026-92494`
- **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:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:10 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: `02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 to before a9a6ec1298f9bc134b2c5db27d25bb10603b7113` (git)
  - affected: `02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 to before 35fc83c65faf7949f5701bb34b20f822560a7718` (git)
  - affected: `02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 to before 74637f7fef030e5fb2e835b7dfeb05efdc48e0fe` (git)
  - affected: `02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 to before 6ec53ccab0d691b3c73e03d930343ca45987e88d` (git)
  - affected: `02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 to before 1399f102d8a1855c1a38506057306ec79d0787d9` (git)
  - affected: `02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 to before e1e342d9a561c016b8531ec1f4dcefaad9d64954` (git)
  - affected: `02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 to before 05704335803b69c1bfa8637b7ada942bf2ee8a41` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (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: `6.18.52 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 11th percentile, on 14 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-2026-92494](https://www.cve.org/CVERecord?id=CVE-2026-92494)
- [NVD: CVE-2026-92494](https://nvd.nist.gov/vuln/detail/CVE-2026-92494)

### References from the CNA

- <https://git.kernel.org/stable/c/a9a6ec1298f9bc134b2c5db27d25bb10603b7113>
- <https://git.kernel.org/stable/c/35fc83c65faf7949f5701bb34b20f822560a7718>
- <https://git.kernel.org/stable/c/74637f7fef030e5fb2e835b7dfeb05efdc48e0fe>
- <https://git.kernel.org/stable/c/6ec53ccab0d691b3c73e03d930343ca45987e88d>
- <https://git.kernel.org/stable/c/1399f102d8a1855c1a38506057306ec79d0787d9>
- <https://git.kernel.org/stable/c/e1e342d9a561c016b8531ec1f4dcefaad9d64954>
- <https://git.kernel.org/stable/c/05704335803b69c1bfa8637b7ada942bf2ee8a41>

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-2026-92494>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-92494/>. Everything for agents: <https://agentprime.io/llms.txt>.