# media: rtl2832_sdr: use vb2_video_unregister_device() on remove to fix DMA leak

CVE record · `CVE-2026-89881`

- **Identifiers:** `CVE-2026-89881`
- **State:** Confirmed
- **Severity:** No CVSS score
- **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: `771138920eafa399f68d3492c8a75dfeea23474b to before 234c46b95a032232e31fa5987b84fb8f87a9693b` (git)
  - affected: `771138920eafa399f68d3492c8a75dfeea23474b to before 034b6a4f9589c04bc3f2bd5125658cd72d3e17c8` (git)
  - affected: `771138920eafa399f68d3492c8a75dfeea23474b to before 0ef9f19010ae4ba93aca211ea8f0081b9bf7aab2` (git)
  - affected: `771138920eafa399f68d3492c8a75dfeea23474b to before 053581d4657c6b5289c5de71a4828d313c005189` (git)
  - affected: `771138920eafa399f68d3492c8a75dfeea23474b to before bbf15e83c37d9ac938b7c35c02b748fe54230010` (git)
  - affected: `771138920eafa399f68d3492c8a75dfeea23474b to before 7443b16b6dd8889a3b9c5236a09e7c58f0d11dae` (git)
  - affected: `771138920eafa399f68d3492c8a75dfeea23474b to before a0d9d9a3b41a1346c26af57aade6ba3f552fa171` (git)
  - affected: `771138920eafa399f68d3492c8a75dfeea23474b to before dabb047c62668f280998e29117c55e41aabac336` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.15`
  - unaffected: `before 3.15` (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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0022, the 12th 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-2026-89881](https://www.cve.org/CVERecord?id=CVE-2026-89881)
- [NVD: CVE-2026-89881](https://nvd.nist.gov/vuln/detail/CVE-2026-89881)

### References from the CNA

- <https://git.kernel.org/stable/c/234c46b95a032232e31fa5987b84fb8f87a9693b>
- <https://git.kernel.org/stable/c/034b6a4f9589c04bc3f2bd5125658cd72d3e17c8>
- <https://git.kernel.org/stable/c/0ef9f19010ae4ba93aca211ea8f0081b9bf7aab2>
- <https://git.kernel.org/stable/c/053581d4657c6b5289c5de71a4828d313c005189>
- <https://git.kernel.org/stable/c/bbf15e83c37d9ac938b7c35c02b748fe54230010>
- <https://git.kernel.org/stable/c/7443b16b6dd8889a3b9c5236a09e7c58f0d11dae>
- <https://git.kernel.org/stable/c/a0d9d9a3b41a1346c26af57aade6ba3f552fa171>
- <https://git.kernel.org/stable/c/dabb047c62668f280998e29117c55e41aabac336>

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-2026-89881>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89881/>. Everything for agents: <https://agentprime.io/llms.txt>.