# media: zoran: Avoid freeing a registered video_device twice

CVE record · `CVE-2026-89870`

- **Identifiers:** `CVE-2026-89870`
- **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:** 30 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: `bd01629315ffd5b63da91d0bd529a77d30e55028 to before 29792762e65d4eefbe75b6048c59763fd844191a` (git)
  - affected: `ff3357bffd9fb78f59762d8955afc7382a279079 to before 99277a387802eb6c1907c73f09d746908cc64913` (git)
  - affected: `82e3a496eb56da0b9f29fdc5b63cedb3289e91de to before 3ad6cf27505017a6794f5f96c31218c2291e951b` (git)
  - affected: `82e3a496eb56da0b9f29fdc5b63cedb3289e91de to before c4acac8cdc005b2d14b6cef5e215d264212857f3` (git)
  - affected: `82e3a496eb56da0b9f29fdc5b63cedb3289e91de to before 4d99d8d0d895489064783601a516bd45812fa992` (git)
  - affected: `82e3a496eb56da0b9f29fdc5b63cedb3289e91de to before f1c4f3885df1f09bcab5296d86834d104f865e86` (git)
  - affected: `82e3a496eb56da0b9f29fdc5b63cedb3289e91de to before 672dbccf4351370dad002d3c78dbb29ca1588f22` (git)
  - affected: `82e3a496eb56da0b9f29fdc5b63cedb3289e91de to before 0735e0b5a96761a9ce277a238e834008ad92a0a5` (git)
  - affected: `c1ba65100a359fe28cfe37e09e10c99f247cbf1e` (git)
  - affected: `1e501ec38796f43e995731d1bcd4173cb1ccfce0` (git)
  - affected: `5.10.110 to before 5.10.273` (semver)
  - affected: `5.15.33 to before 5.15.224` (semver)
  - and 2 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.18`
  - unaffected: `before 5.18` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 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

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel's media zoran driver can free the same video device twice during device teardown. The source gives few details on who can trigger it or what they could gain. Upgrade to a fixed kernel, such as 5.10.273 or later, 5.15.224 or later, 6.1.188 or later, or 6.6.157 or later.

Written 12 Nov 2026.

## 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89870](https://www.cve.org/CVERecord?id=CVE-2026-89870)
- [NVD: CVE-2026-89870](https://nvd.nist.gov/vuln/detail/CVE-2026-89870)

### References from the CNA

- <https://git.kernel.org/stable/c/29792762e65d4eefbe75b6048c59763fd844191a>
- <https://git.kernel.org/stable/c/99277a387802eb6c1907c73f09d746908cc64913>
- <https://git.kernel.org/stable/c/3ad6cf27505017a6794f5f96c31218c2291e951b>
- <https://git.kernel.org/stable/c/c4acac8cdc005b2d14b6cef5e215d264212857f3>
- <https://git.kernel.org/stable/c/4d99d8d0d895489064783601a516bd45812fa992>
- <https://git.kernel.org/stable/c/f1c4f3885df1f09bcab5296d86834d104f865e86>
- <https://git.kernel.org/stable/c/672dbccf4351370dad002d3c78dbb29ca1588f22>
- <https://git.kernel.org/stable/c/0735e0b5a96761a9ce277a238e834008ad92a0a5>

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-2026-89870>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89870/>. Everything for agents: <https://agentprime.io/llms.txt>.