# dm-crypt: fix a tiny race condition in crypt_dec_pending

CVE record · `CVE-2026-99136`

- **Identifiers:** `CVE-2026-99136`
- **State:** Confirmed
- **Severity:** CVSS 7.0 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 28 Oct 2026
- **Updated:** 31 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 28 Oct 2026, 10:34 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: `b35f8caa0890169000fec22902290d9a15274cbd to before 445a6883f46d3ab1ff545199a8cc1d5834936d3f` (git)
  - affected: `b35f8caa0890169000fec22902290d9a15274cbd to before 6f82e86471c92fd874f2630c9a6af887f4ed1a77` (git)
  - affected: `b35f8caa0890169000fec22902290d9a15274cbd to before 6ac8546df1f8a2b1ca7f6d67c269057a99fbbf8c` (git)
  - affected: `b35f8caa0890169000fec22902290d9a15274cbd to before 056bf8322e39a48026df352d6227ec03dd8cd032` (git)
  - affected: `b35f8caa0890169000fec22902290d9a15274cbd to before d9d7069bb79139271b54dc477f07e242c445de6b` (git)
  - affected: `b35f8caa0890169000fec22902290d9a15274cbd to before ac5d887ab93592fc5e3605fe30c1d8d232d609b3` (git)
  - affected: `b35f8caa0890169000fec22902290d9a15274cbd to before 4f16bb982b27b9f5a15301f622c318001fe521f8` (git)
  - affected: `b35f8caa0890169000fec22902290d9a15274cbd to before 148845aa1921d95ef5dc851c76e6a284f6657df6` (git)
  - affected: `9c8f3fcd3ffd3283cc0971c8919058356f20a963` (git)
  - affected: `2.6.28.9 to before 2.6.29` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.29`
  - unaffected: `before 2.6.29` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.161 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.115 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.59 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.13 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0012, the 2nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 28 Oct 2026, 10:34 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-99136)

## Sources

- [CVE List: CVE-2026-99136](https://www.cve.org/CVERecord?id=CVE-2026-99136)
- [NVD: CVE-2026-99136](https://nvd.nist.gov/vuln/detail/CVE-2026-99136)

### References from the CNA

- <https://git.kernel.org/stable/c/445a6883f46d3ab1ff545199a8cc1d5834936d3f>
- <https://git.kernel.org/stable/c/6f82e86471c92fd874f2630c9a6af887f4ed1a77>
- <https://git.kernel.org/stable/c/6ac8546df1f8a2b1ca7f6d67c269057a99fbbf8c>
- <https://git.kernel.org/stable/c/056bf8322e39a48026df352d6227ec03dd8cd032>
- <https://git.kernel.org/stable/c/d9d7069bb79139271b54dc477f07e242c445de6b>
- <https://git.kernel.org/stable/c/ac5d887ab93592fc5e3605fe30c1d8d232d609b3>
- <https://git.kernel.org/stable/c/4f16bb982b27b9f5a15301f622c318001fe521f8>
- <https://git.kernel.org/stable/c/148845aa1921d95ef5dc851c76e6a284f6657df6>

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-2026-99136>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-99136/>. Everything for agents: <https://agentprime.io/llms.txt>.