# fbdev: uvesafb: unregister connector callback on init failure

CVE record · `CVE-2026-89597`

- **Identifiers:** `CVE-2026-89597`
- **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, 19:44 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: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before b149f77d04082a9da75944cdc488becb0e35258f` (git)
  - affected: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before 0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7` (git)
  - affected: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before 17518e7123f7ef01b1155064dc01f2087583908e` (git)
  - affected: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before 9eb7b3cbe99c9c0edbff69eb155c723e30983c22` (git)
  - affected: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before 9f8a822b44c42502f105cf6574f4867067eecdd0` (git)
  - affected: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before 466a8af0dee2cf745307155e26884e19a37b7e15` (git)
  - affected: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before 9e768ae51426af2034d479133cfd73010d641b1a` (git)
  - affected: `8bdb3a2d7df48b861972c4bfb58490853a228f51 to before de8db23aa7c337e606fca9faf48b3ba72968597a` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.24`
  - unaffected: `before 2.6.24` (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: `6.12.109 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:** 0.0017, the 6th 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-2026-89597](https://www.cve.org/CVERecord?id=CVE-2026-89597)
- [NVD: CVE-2026-89597](https://nvd.nist.gov/vuln/detail/CVE-2026-89597)

### References from the CNA

- <https://git.kernel.org/stable/c/b149f77d04082a9da75944cdc488becb0e35258f>
- <https://git.kernel.org/stable/c/0352fdac3cbf11e3b323322ff8cd95e20cbf5cd7>
- <https://git.kernel.org/stable/c/17518e7123f7ef01b1155064dc01f2087583908e>
- <https://git.kernel.org/stable/c/9eb7b3cbe99c9c0edbff69eb155c723e30983c22>
- <https://git.kernel.org/stable/c/9f8a822b44c42502f105cf6574f4867067eecdd0>
- <https://git.kernel.org/stable/c/466a8af0dee2cf745307155e26884e19a37b7e15>
- <https://git.kernel.org/stable/c/9e768ae51426af2034d479133cfd73010d641b1a>
- <https://git.kernel.org/stable/c/de8db23aa7c337e606fca9faf48b3ba72968597a>

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-2026-89597>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89597/>. Everything for agents: <https://agentprime.io/llms.txt>.