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CVE-2025-40093

usb: gadget: f_ecm: Refactor bind path to use __free() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected da741b8c56d612b5dd26ffa31341911a5fea23ee before d3745aaef19198d0c81637a7dd50ef53c4f879b7; affected da741b8c56d612b5dd26ffa31341911a5fea23ee before 070f341d86cf2c098d63e484a86c7c1d2696a868; affected da741b8c56d612b5dd26ffa31341911a5fea23ee before 15b9faf53ba8719700596e7ef78879ce200e8c2e; affected da741b8c56d612b5dd26ffa31341911a5fea23ee before 4630c68bade82f087eaaab22e9a361da2f18d139; affected da741b8c56d612b5dd26ffa31341911a5fea23ee before 42988380ac67c76bb9dff8f77d7ef3eefd50b7b5
Linux / Linuxaffected 2.6.27; unaffected 0 before 2.6.27; unaffected 6.1.158 through 6.1.*; unaffected 6.6.114 through 6.6.*; unaffected 6.12.55 through 6.12.*; unaffected 6.17.5 through 6.17.*; unaffected 6.18 through *

CWE

No CWE identifiers supplied.

References