Unrated severityNVD Advisory· Published Oct 30, 2025· Updated Apr 15, 2026
CVE-2025-40093
CVE-2025-40093
Description
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: f_ecm: Refactor bind path to use __free()
After an bind/unbind cycle, the ecm->notify_req is left stale. If a subsequent bind fails, the unified error label attempts to free this stale request, leading to a NULL pointer dereference when accessing ep->ops->free_request.
Refactor the error handling in the bind path to use the __free() automatic cleanup mechanism.
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Affected products
4- osv-coords3 versionspkg:linux/kernelpkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-source-longterm&distro=openSUSE%20Tumbleweed
>= 2.6.27, < 6.1.158+ 2 more
- (no CPE)range: >= 2.6.27, < 6.1.158
- (no CPE)range: < 6.17.7-1.1
- (no CPE)range: < 6.18.16-1.1
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/070f341d86cf2c098d63e484a86c7c1d2696a868nvd
- git.kernel.org/stable/c/15b9faf53ba8719700596e7ef78879ce200e8c2envd
- git.kernel.org/stable/c/42988380ac67c76bb9dff8f77d7ef3eefd50b7b5nvd
- git.kernel.org/stable/c/4630c68bade82f087eaaab22e9a361da2f18d139nvd
- git.kernel.org/stable/c/d3745aaef19198d0c81637a7dd50ef53c4f879b7nvd
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