Use-after-free in Linux kernel - CVE-2026-93117
Published: September 18, 2026
Vulnerability identifier: #VU150886
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93117
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger a use-after-free condition.
The vulnerability exists due to a use-after-free in usb_probe_interface when a USB driver probe runs concurrently with dynamic ID removal. A local user can trigger concurrent USB driver probing and dynamic ID removal to trigger a use-after-free condition.
Affected software
Linux kernel
How to mitigate CVE-2026-93117
Install security update from vendor's repository.
External 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