# usb: usbfs: fix use-after-free of usb_device in usbdev_release()

CVE record · `CVE-2026-80824`

- **Identifiers:** `CVE-2026-80824`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 4 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 15:54 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: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before 0a960b88c5979f853019d4dc4957dfbeeb193440` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before 96f5520fc9a5e4bbf77ac93c9d5ce502f597e6cf` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before bd4bffc621a8cb2f4d9ed9b6447415de524a3bef` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before 65879e0a452ca2a234b9475e0c11aff7a4343738` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before b3cde26a66b04f1d90ed0b675899c88b4e49d424` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before 5f08c45bdcfd28d1171de38c5ef29fc89a76eedc` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before 7f0278e474c4d1c4457974ff1137cc385c944ab3` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before 47a7f98fbb5006d46d15a3a210ffdc61448a4f19` (git)
  - affected: `f7d34b445abc00e979b7cf36b9580ac3d1a47cd8 to before 0dd68b5d01d022fc9c5e71c82a82b0a94d3d0671` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.6`
  - unaffected: `before 4.6` (semver)
  - unaffected: `5.10.269 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.220 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.187 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.156 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.108 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.49 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.13 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2.3 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:** 0.0019, the 9th 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 4 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80824](https://www.cve.org/CVERecord?id=CVE-2026-80824)
- [NVD: CVE-2026-80824](https://nvd.nist.gov/vuln/detail/CVE-2026-80824)

### References from the CNA

- <https://git.kernel.org/stable/c/0a960b88c5979f853019d4dc4957dfbeeb193440>
- <https://git.kernel.org/stable/c/96f5520fc9a5e4bbf77ac93c9d5ce502f597e6cf>
- <https://git.kernel.org/stable/c/bd4bffc621a8cb2f4d9ed9b6447415de524a3bef>
- <https://git.kernel.org/stable/c/65879e0a452ca2a234b9475e0c11aff7a4343738>
- <https://git.kernel.org/stable/c/b3cde26a66b04f1d90ed0b675899c88b4e49d424>
- <https://git.kernel.org/stable/c/5f08c45bdcfd28d1171de38c5ef29fc89a76eedc>
- <https://git.kernel.org/stable/c/7f0278e474c4d1c4457974ff1137cc385c944ab3>
- <https://git.kernel.org/stable/c/47a7f98fbb5006d46d15a3a210ffdc61448a4f19>
- <https://git.kernel.org/stable/c/0dd68b5d01d022fc9c5e71c82a82b0a94d3d0671>

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-2026-80824>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80824/>. Everything for agents: <https://agentprime.io/llms.txt>.