CVE-2025-38313

Severity CVSS v4.0:

Pending analysis

Type:

CWE-415 Double Free

Publication date:

10/07/2025

Last modified:

19/12/2025

Description

In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix double-free on mc_dev The blamed commit tried to simplify how the deallocations are done but, in the process, introduced a double-free on the mc_dev variable. In case the MC device is a DPRC, a new mc_bus is allocated and the mc_dev variable is just a reference to one of its fields. In this circumstance, on the error path only the mc_bus should be freed. This commit introduces back the following checkpatch warning which is a false-positive. WARNING: kfree(NULL) is safe and this check is probably not required + if (mc_bus) + kfree(mc_bus);

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.13 (including)	5.4.295 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.239 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.186 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.142 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.94 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.34 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.15.3 (excluding)
cpe:2.3:o:debian:debian_linux:11.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-38313

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools