CVE-2026-93117

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.

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EPSS — Exploit Prediction

0.0021

Probability of exploitation

0.10%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other 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

Frequently Asked Questions

What is CVE-2026-93117? +

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.

How do I check if I'm vulnerable to CVE-2026-93117? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.