most: core: fix resource leak in most_register_interface error paths (Linux Linux)

CVE-2025-71272
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.16 % · percentile 5 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: most: core: fix resource leak in most_register_interface error paths The function most_register_interface() did not correctly release resources if it failed early (before registering the device). In these cases, it returned an error code immediately, leaking the memory allocated for the interface. Fix this by initializing the device early via device_initialize() and calling put_device() on all error paths. The most_register_interface() is expected to call put_device() on error which frees the resources allocated in the caller. The put_device() either calls release_mdev() or dim2_release(), depending on the caller. Switch to using device_add() instead of device_register() to handle the split initialization.

Weaknesses (CWE)

  • CWE-401 — Missing Release of Memory after Effective Lifetime

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c < 82f42a13e3d7a07a950ee4fa2d4c74843a3e7ace ; affected 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c < a49028a796d7b94f8e3ab9bd34b18f36be235459 ; affected 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c < af0b99b2214a10554adb5b868240d23af6e64e71 ; affected 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c < 2f483f3817fb0e4209ac5de928778b1da0cc8574 ; affected 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c < 1f4c9d8a1021281750c6cda126d6f8a40cc24e71
Linux · Linuxaffected 5.6 ; unaffected 0 < 5.6 ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.75 ≤ 6.12.* ; unaffected 6.18.16 ≤ 6.18.* ; unaffected 6.19.6 ≤ 6.19.*

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