# tracing: Fix use-after-free with same-name named triggers

CVE record · `CVE-2026-89746`

- **Identifiers:** `CVE-2026-89746`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:46 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: `5ae1b18f05ee2b849dc03b6c15d7da0c1c6efa77 to before 441aa6742dff70297b5f64533a07a6189a026e91` (git)
  - affected: `43b254d46c740bf9dbe65709afa021dd726dfa99 to before 3a8534664426c071c2dfb5b4ffa36b18a2abfd79` (git)
  - affected: `435d2964af815aae456db554c62963b4515f19d0 to before 477d762be4b0ffaf01429ccd88859e93b0ec28cc` (git)
  - affected: `6f86bdeab633a56d5c6dccf1a2c5989b6a5e323e to before b1a49c22de01faf176d44e5caa765e237353a579` (git)
  - affected: `6f86bdeab633a56d5c6dccf1a2c5989b6a5e323e to before 83d1ae0406d8eade219a81b401e201702dd9dc55` (git)
  - affected: `6f86bdeab633a56d5c6dccf1a2c5989b6a5e323e to before a7318172aa332a161fb9618286e64454c827f8fd` (git)
  - affected: `f1ae50cfb818ce1ac7a674406dfadb7653e2552d` (git)
  - affected: `6.1.130 to before 6.1.188` (semver)
  - affected: `6.6.81 to before 6.6.157` (semver)
  - affected: `6.12.18 to before 6.12.109` (semver)
  - affected: `6.13.6 to before 6.14` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.14`
  - unaffected: `before 6.14` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89746](https://www.cve.org/CVERecord?id=CVE-2026-89746)
- [NVD: CVE-2026-89746](https://nvd.nist.gov/vuln/detail/CVE-2026-89746)

### References from the CNA

- <https://git.kernel.org/stable/c/441aa6742dff70297b5f64533a07a6189a026e91>
- <https://git.kernel.org/stable/c/3a8534664426c071c2dfb5b4ffa36b18a2abfd79>
- <https://git.kernel.org/stable/c/477d762be4b0ffaf01429ccd88859e93b0ec28cc>
- <https://git.kernel.org/stable/c/b1a49c22de01faf176d44e5caa765e237353a579>
- <https://git.kernel.org/stable/c/83d1ae0406d8eade219a81b401e201702dd9dc55>
- <https://git.kernel.org/stable/c/a7318172aa332a161fb9618286e64454c827f8fd>

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-2026-89746>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89746/>. Everything for agents: <https://agentprime.io/llms.txt>.