# media: pwc: Return queued buffers on start_streaming() failure

CVE record · `CVE-2026-68216`

- **Identifiers:** `CVE-2026-68216`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-401](https://cwe.mitre.org/data/definitions/401.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 10 Aug 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 10 Aug 2026, 12:00 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: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before d552852bf76b7dfb35b4593fc874d8dd2f1b1bf3` (git)
  - affected: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before 0362ae30b61b3053ee3095c1b8f179197ec4f539` (git)
  - affected: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before fa78e590852751d3ad32f33f6b4e210fe6ccbe9b` (git)
  - affected: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before f2f9fcacd81953dde6cb86312ab13ca13e689664` (git)
  - affected: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before 5d7cc2634c3843a1414a0f6407aa17f1f91dee60` (git)
  - affected: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before cb16b79a2be2cec9c3ebe4147490817c4d8b1de3` (git)
  - affected: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before a4f8f629983f643333e49df90557805469bcbb25` (git)
  - affected: `ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 to before 975b2ee20e569d47821e4f6c9761b4664d48a6a4` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.5`
  - unaffected: `before 3.5` (semver)
  - unaffected: `5.10.265 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.216 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.183 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.148 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.101 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.42 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.6 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2 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:** 0.0018, the 7th 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 10 Aug 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-68216](https://www.cve.org/CVERecord?id=CVE-2026-68216)
- [NVD: CVE-2026-68216](https://nvd.nist.gov/vuln/detail/CVE-2026-68216)

### References from the CNA

- <https://git.kernel.org/stable/c/d552852bf76b7dfb35b4593fc874d8dd2f1b1bf3>
- <https://git.kernel.org/stable/c/0362ae30b61b3053ee3095c1b8f179197ec4f539>
- <https://git.kernel.org/stable/c/fa78e590852751d3ad32f33f6b4e210fe6ccbe9b>
- <https://git.kernel.org/stable/c/f2f9fcacd81953dde6cb86312ab13ca13e689664>
- <https://git.kernel.org/stable/c/5d7cc2634c3843a1414a0f6407aa17f1f91dee60>
- <https://git.kernel.org/stable/c/cb16b79a2be2cec9c3ebe4147490817c4d8b1de3>
- <https://git.kernel.org/stable/c/a4f8f629983f643333e49df90557805469bcbb25>
- <https://git.kernel.org/stable/c/975b2ee20e569d47821e4f6c9761b4664d48a6a4>

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-2026-68216>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-68216/>. Everything for agents: <https://agentprime.io/llms.txt>.