# btrfs: fix transaction use-after-free in raid stripe insertion

CVE record · `CVE-2026-98083`

- **Identifiers:** `CVE-2026-98083`
- **State:** Confirmed
- **Severity:** CVSS 7.0 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:24 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: `ab69bf6f8970c09d3735c25094e9471d54365282 to before 089d9c45ea49ffffe55a8fe08d0ce2536626e90a` (git)
  - affected: `02c372e1f016e5113217597ab37b399c4e407477 to before b185bdf30313e213fa1c887fe22fc3d513c061d9` (git)
  - affected: `02c372e1f016e5113217597ab37b399c4e407477 to before 2fbfd02bdfe12b20bd3cc7a3190fb32e3f7072f5` (git)
  - affected: `02c372e1f016e5113217597ab37b399c4e407477 to before b7b94923b3b5774d85a2a7c8d6eb9e3e0ef66685` (git)
  - affected: `02c372e1f016e5113217597ab37b399c4e407477 to before a8813a923f9e43f788b357fb55c35f7f6ed6f98c` (git)
  - affected: `6.6.130 to before 6.6.158` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.7`
  - unaffected: `before 6.7` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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 1st percentile, on 11 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98083](https://www.cve.org/CVERecord?id=CVE-2026-98083)
- [NVD: CVE-2026-98083](https://nvd.nist.gov/vuln/detail/CVE-2026-98083)

### References from the CNA

- <https://git.kernel.org/stable/c/089d9c45ea49ffffe55a8fe08d0ce2536626e90a>
- <https://git.kernel.org/stable/c/b185bdf30313e213fa1c887fe22fc3d513c061d9>
- <https://git.kernel.org/stable/c/2fbfd02bdfe12b20bd3cc7a3190fb32e3f7072f5>
- <https://git.kernel.org/stable/c/b7b94923b3b5774d85a2a7c8d6eb9e3e0ef66685>
- <https://git.kernel.org/stable/c/a8813a923f9e43f788b357fb55c35f7f6ed6f98c>

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-2026-98083>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98083/>. Everything for agents: <https://agentprime.io/llms.txt>.