# scsi: qla2xxx: Fix cs84xx use-after-free on host teardown

CVE record · `CVE-2026-89854`

- **Identifiers:** `CVE-2026-89854`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:31 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: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before 8c1ebcade6aac58137f2645b579894301febabf3` (git)
  - affected: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before 1d8bbc4344b9367d9d54731475d745fbc9ea28f2` (git)
  - affected: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before 2c3b17ee53f034936f7398dbf4d143e608b7c35c` (git)
  - affected: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before ae09260be7454ed7630a913f147591a25e3a9d09` (git)
  - affected: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before fcf0804dfe05862007189ac9dc4dc2063be36de1` (git)
  - affected: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before 8286a9095fb59751fba171afa2b4f590271c87d5` (git)
  - affected: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before 122bf170c94a3797531b12fee580639a5dc893ed` (git)
  - affected: `fe1b806f4f7172b1eae18ddeebb7d8fb351043f7 to before 33d102102d925357c5fd172dd6672a27d74b3215` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.14`
  - unaffected: `before 3.14` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (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: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89854](https://www.cve.org/CVERecord?id=CVE-2026-89854)
- [NVD: CVE-2026-89854](https://nvd.nist.gov/vuln/detail/CVE-2026-89854)

### References from the CNA

- <https://git.kernel.org/stable/c/8c1ebcade6aac58137f2645b579894301febabf3>
- <https://git.kernel.org/stable/c/1d8bbc4344b9367d9d54731475d745fbc9ea28f2>
- <https://git.kernel.org/stable/c/2c3b17ee53f034936f7398dbf4d143e608b7c35c>
- <https://git.kernel.org/stable/c/ae09260be7454ed7630a913f147591a25e3a9d09>
- <https://git.kernel.org/stable/c/fcf0804dfe05862007189ac9dc4dc2063be36de1>
- <https://git.kernel.org/stable/c/8286a9095fb59751fba171afa2b4f590271c87d5>
- <https://git.kernel.org/stable/c/122bf170c94a3797531b12fee580639a5dc893ed>
- <https://git.kernel.org/stable/c/33d102102d925357c5fd172dd6672a27d74b3215>

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-2026-89854>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89854/>. Everything for agents: <https://agentprime.io/llms.txt>.