CVE-2025-40093
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/10/2025
Last modified:
30/10/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
usb: gadget: f_ecm: Refactor bind path to use __free()<br />
<br />
After an bind/unbind cycle, the ecm->notify_req is left stale. If a<br />
subsequent bind fails, the unified error label attempts to free this<br />
stale request, leading to a NULL pointer dereference when accessing<br />
ep->ops->free_request.<br />
<br />
Refactor the error handling in the bind path to use the __free()<br />
automatic cleanup mechanism.
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/070f341d86cf2c098d63e484a86c7c1d2696a868
- https://git.kernel.org/stable/c/15b9faf53ba8719700596e7ef78879ce200e8c2e
- https://git.kernel.org/stable/c/42988380ac67c76bb9dff8f77d7ef3eefd50b7b5
- https://git.kernel.org/stable/c/4630c68bade82f087eaaab22e9a361da2f18d139
- https://git.kernel.org/stable/c/d3745aaef19198d0c81637a7dd50ef53c4f879b7



