CVE-2025-38313

bus: fsl-mc: fix double-free on mc_dev

HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.19 % · percentile 9 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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);

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected a042fbed02904493ae6df26ec836045f5a7d3ce2 < 12e4431e5078847791936820bd39df9e1ee26d2e ; affected a042fbed02904493ae6df26ec836045f5a7d3ce2 < 3135e03a92f6b5259d0a7f25f728e9e7866ede3f ; affected a042fbed02904493ae6df26ec836045f5a7d3ce2 < 7002b954c4a8b9965ba0f139812ee4a6f71beac8 ; affected a042fbed02904493ae6df26ec836045f5a7d3ce2 < b2057374f326303c86d8423415ab58656eebc695 ; affected a042fbed02904493ae6df26ec836045f5a7d3ce2 < 4b23c46eb2d88924b93aca647bde9a4b9cf62cf9 ; affected a042fbed02904493ae6df26ec836045f5a7d3ce2 < 1d5baab39e5b09a76870b345cdee7933871b881f
Linux · Linuxaffected 4.13 ; unaffected 0 < 4.13 ; unaffected 5.4.295 ≤ 5.4.* ; unaffected 5.10.239 ≤ 5.10.* ; unaffected 5.15.186 ≤ 5.15.* ; unaffected 6.1.142 ≤ 6.1.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD