Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held, as remove_id_store can free the node. Thus, make a copy in usb_probe_interface. Clarify the documentation that the id parameter is only valid during the probe. USB serial has the same pattern, but it does not need fixing as the IDs cannot be removed via sysfs.
References
- https://git.kernel.org/stable/c/44904468e58d3dc3a0229782acbeb9677b060541
- https://git.kernel.org/stable/c/64320c6e721bdec4c43a789c866c8a099dd0c843
- https://git.kernel.org/stable/c/7e795801295c84a6bbc10a3e7a4c99c50bfe45ac
- https://git.kernel.org/stable/c/9b82ddf76827e2a8ff033a8131ecf24f2d6cae26
- https://git.kernel.org/stable/c/e6a9c6b79b70046afdf5a1dbd03b1104536f30c0
- https://git.kernel.org/stable/c/ef8154d8b52d60338c1fd8d793cd8e891c604c14
FAQ
What is CVE-2026-93117?
CVE-2026-93117 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: usb: fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held...
How severe is CVE-2026-93117?
CVSS scoring is not yet available for CVE-2026-93117. Check NVD for updates.
Is there a patch for CVE-2026-93117?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.