USB: misc: uss720: unregister parport on probe failure (Linux Linux)

CVE-2026-64338
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.12 % · percentile 2 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: USB: misc: uss720: unregister parport on probe failure uss720_probe() registers a parport before reading the 1284 register used to detect unsupported Belkin F5U002 adapters. If get_1284_register() fails, the error path drops the driver private data and the USB device reference, but leaves the parport device registered. Leaving the port registered is more than a private allocation leak: parport_register_port() has already reserved a parport number and registered the parport bus device, while pp->private_data still points at the private data that the common error path is about to release. Undo the pre-announce registration in the get_1284_register() failure branch before jumping to the common private-data cleanup path. Clear priv->pp first, matching the disconnect path and avoiding a stale pointer in the private data. This issue was identified during our ongoing static-analysis research while reviewing kernel code.

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 04736c1bc32197f7d859e01a96ae80a16659931d < 6bbb98bec71b577fda4f4b48f7aea5874b04a576 ; affected 4eaf2331a77996bbbaf2b824d452ac8ebda7e6e7 < 93563243377f8e9b46cc94d9c4f06533dd31b141 ; affected 8fc246a8a456679993df565d3c9e3da28030ee43 < 1712fd71a5aaf81e47c747f180535fa963ad7830 ; affected 10132ccf99f49b43aeb7470df50d72344a601ad6 < 0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea ; affected 3295f1b866bfbcabd625511968e8a5c541f9ab32 < 5e62d7857fd51b908b8371062ee839739a086bbe ; affected 3295f1b866bfbcabd625511968e8a5c541f9ab32 < 729b68a5bad71220ae0914c8bdab9488ad5be6c8
Linux · Linuxaffected 6.10 ; unaffected 0 < 6.10 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.*

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