CVE-2026-43375

MEDIUM

net: mctp: fix device leak on probe failure

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: mctp: fix device leak on probe failure Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. This driver takes a reference to the USB device during probe but does not to release it on probe failures. Drop the redundant device reference to fix the leak, reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of further memory leaks.

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (10)
Linux/Linux < 6.15
Linux/Linux 0791c0327a6e4e7691d6fc5ad334c215de04dcc9 - 224a0d284c3caf1951302d1744a714784febed71
Linux/Linux 0791c0327a6e4e7691d6fc5ad334c215de04dcc9 - 3224990fb16a831aabc50b67c74f5d0074ce80dd
Linux/Linux 0791c0327a6e4e7691d6fc5ad334c215de04dcc9 - ec9538f9b5cd1db5e8c612aa636b6119b6355c5d
Linux/Linux 6.15
Linux/Linux 6.18.19 - 6.18.*
Linux/Linux 6.19.9 - 6.19.*
Linux/Linux 7.0
linux/linux_kernel 7.0 rc1 (3 CPE variants)
linux/linux_kernel 6.15 - 6.18.19
Published May 08, 2026
Tracked Since May 08, 2026