High 7.8Published Oct 30, 2025

CVE-2025-40093usb: gadget: f_ecm: Refactor bind path to use __free()

Updated under an hour ago (Oct 27, 2026, 12:30 PM ET)

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from da741b8c56d612b5dd26ffa31341911a5fea23ee before d3745aaef19198d0c81637a7dd50ef53c4f879b7; from da741b8c56d612b5dd26ffa31341911a5fea23ee before 070f341d86cf2c098d63e484a86c7c1d2696a868; from da741b8c56d612b5dd26ffa31341911a5fea23ee before 15b9faf53ba8719700596e7ef78879ce200e8c2e; from da741b8c56d612b5dd26ffa31341911a5fea23ee before 4630c68bade82f087eaaab22e9a361da2f18d139; from da741b8c56d612b5dd26ffa31341911a5fea23ee before 42988380ac67c76bb9dff8f77d7ef3eefd50b7b5	CNA record

References

References

https://git.kernel.org/stable/c/d3745aaef19198d0c81637a7dd50ef53c4f879b7
https://git.kernel.org/stable/c/070f341d86cf2c098d63e484a86c7c1d2696a868
https://git.kernel.org/stable/c/15b9faf53ba8719700596e7ef78879ce200e8c2e
https://git.kernel.org/stable/c/4630c68bade82f087eaaab22e9a361da2f18d139
https://git.kernel.org/stable/c/42988380ac67c76bb9dff8f77d7ef3eefd50b7b5

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.