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);

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/12e4431e5078847791936820bd39df9e1ee26d2e cve-icon cve-icon
https://git.kernel.org/stable/c/1d5baab39e5b09a76870b345cdee7933871b881f cve-icon cve-icon
https://git.kernel.org/stable/c/3135e03a92f6b5259d0a7f25f728e9e7866ede3f cve-icon cve-icon
https://git.kernel.org/stable/c/4b23c46eb2d88924b93aca647bde9a4b9cf62cf9 cve-icon cve-icon
https://git.kernel.org/stable/c/7002b954c4a8b9965ba0f139812ee4a6f71beac8 cve-icon cve-icon
https://git.kernel.org/stable/c/873d47114fd5e5a1cad2018843671537cc71ac84 cve-icon cve-icon
https://git.kernel.org/stable/c/b2057374f326303c86d8423415ab58656eebc695 cve-icon cve-icon
https://git.kernel.org/stable/c/d694bf8a9acdbd061596f3e7549bc8cb70750a60 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025071015-CVE-2025-38313-4e5a@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-38313 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-38313 cve-icon
History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00024}

 epss

{'score': 0.00032}

Sat, 12 Jul 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Thu, 10 Jul 2025 08:00:00 +0000

Type Values Removed Values Added
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);
Title bus: fsl-mc: fix double-free on mc_dev
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-07-10T07:42:21.314Z

Updated: 2025-07-28T04:18:18.573Z

Reserved: 2025-04-16T04:51:24.003Z

Link: CVE-2025-38313

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-10T08:15:30.240

Modified: 2025-07-10T13:17:30.017

Link: CVE-2025-38313

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-07-10T00:00:00Z

Links: CVE-2025-38313 - Bugzilla