0.0
NA
CVE-2026-64338
USB: misc: uss720: unregister parport on probe failure
Overview
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.
Details
INFO
Published Date :
July 25, 2026, 10:17 a.m.
Last Modified :
Aug. 17, 2026, 5:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Correct resource cleanup in the USB driver to prevent device registration issues.
- Ensure parport unregistration on probe failure.
- Clear private data pointer before cleanup.
- Apply the latest kernel updates.
- Review static analysis findings.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-64338.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64338 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-64338
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-64338 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64338 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '04736c1bc32197f7d859e01a96ae80a16659931d', 'lessThan': '6bbb98bec71b577fda4f4b48f7aea5874b04a576', 'versionType': 'git'}, {'status': 'affected', 'version': '4eaf2331a77996bbbaf2b824d452ac8ebda7e6e7', 'lessThan': '93563243377f8e9b46cc94d9c4f06533dd31b141', 'versionType': 'git'}, {'status': 'affected', 'version': '8fc246a8a456679993df565d3c9e3da28030ee43', 'lessThan': '1712fd71a5aaf81e47c747f180535fa963ad7830', 'versionType': 'git'}, {'status': 'affected', 'version': '10132ccf99f49b43aeb7470df50d72344a601ad6', 'lessThan': '0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '5e62d7857fd51b908b8371062ee839739a086bbe', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '729b68a5bad71220ae0914c8bdab9488ad5be6c8', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '48dd0b2ec9f2e97c486eb68cd0a64b25c1c3df3e', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': 'b4ecbdc4f8830f5586c4a5cfc384c00f20f8f8b3', 'versionType': 'git'}, {'status': 'affected', 'version': '02d13616ca30014ed96302e51a5b0e17664e58bc', 'versionType': 'git'}, {'status': 'affected', 'version': 'dff3b01e91a3df93063b03d0f8dd5c40546687ec', 'versionType': 'git'}, {'status': 'affected', 'version': '489d77fbd66375972a380d207f7eb39b00c4a67b', 'versionType': 'git'}, {'status': 'affected', 'version': '5.10.221', 'lessThan': '5.10.261', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.162', 'lessThan': '5.15.212', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.96', 'lessThan': '6.1.178', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.6.36', 'lessThan': '6.6.145', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.19.317', 'lessThan': '4.20', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.279', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.9.7', 'lessThan': '6.10', 'versionType': 'semver'}], 'programFiles': ['drivers/usb/misc/uss720.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/misc/uss720.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '04736c1bc32197f7d859e01a96ae80a16659931d', 'lessThan': '6bbb98bec71b577fda4f4b48f7aea5874b04a576', 'versionType': 'git'}, {'status': 'affected', 'version': '4eaf2331a77996bbbaf2b824d452ac8ebda7e6e7', 'lessThan': '93563243377f8e9b46cc94d9c4f06533dd31b141', 'versionType': 'git'}, {'status': 'affected', 'version': '8fc246a8a456679993df565d3c9e3da28030ee43', 'lessThan': '1712fd71a5aaf81e47c747f180535fa963ad7830', 'versionType': 'git'}, {'status': 'affected', 'version': '10132ccf99f49b43aeb7470df50d72344a601ad6', 'lessThan': '0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '5e62d7857fd51b908b8371062ee839739a086bbe', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '729b68a5bad71220ae0914c8bdab9488ad5be6c8', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '48dd0b2ec9f2e97c486eb68cd0a64b25c1c3df3e', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': 'b4ecbdc4f8830f5586c4a5cfc384c00f20f8f8b3', 'versionType': 'git'}, {'status': 'affected', 'version': '02d13616ca30014ed96302e51a5b0e17664e58bc', 'versionType': 'git'}, {'status': 'affected', 'version': 'dff3b01e91a3df93063b03d0f8dd5c40546687ec', 'versionType': 'git'}, {'status': 'affected', 'version': '489d77fbd66375972a380d207f7eb39b00c4a67b', 'versionType': 'git'}, {'status': 'affected', 'version': '5.10.221', 'lessThan': '5.10.261', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.162', 'lessThan': '5.15.212', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.96', 'lessThan': '6.1.178', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.6.36', 'lessThan': '6.6.145', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.19.317', 'lessThan': '4.20', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.279', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.9.7', 'lessThan': '6.10', 'versionType': 'semver'}], 'programFiles': ['drivers/usb/misc/uss720.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/misc/uss720.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 25, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '04736c1bc32197f7d859e01a96ae80a16659931d', 'lessThan': '6bbb98bec71b577fda4f4b48f7aea5874b04a576', 'versionType': 'git'}, {'status': 'affected', 'version': '4eaf2331a77996bbbaf2b824d452ac8ebda7e6e7', 'lessThan': '93563243377f8e9b46cc94d9c4f06533dd31b141', 'versionType': 'git'}, {'status': 'affected', 'version': '8fc246a8a456679993df565d3c9e3da28030ee43', 'lessThan': '1712fd71a5aaf81e47c747f180535fa963ad7830', 'versionType': 'git'}, {'status': 'affected', 'version': '10132ccf99f49b43aeb7470df50d72344a601ad6', 'lessThan': '0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '5e62d7857fd51b908b8371062ee839739a086bbe', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '729b68a5bad71220ae0914c8bdab9488ad5be6c8', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': '48dd0b2ec9f2e97c486eb68cd0a64b25c1c3df3e', 'versionType': 'git'}, {'status': 'affected', 'version': '3295f1b866bfbcabd625511968e8a5c541f9ab32', 'lessThan': 'b4ecbdc4f8830f5586c4a5cfc384c00f20f8f8b3', 'versionType': 'git'}, {'status': 'affected', 'version': '02d13616ca30014ed96302e51a5b0e17664e58bc', 'versionType': 'git'}, {'status': 'affected', 'version': 'dff3b01e91a3df93063b03d0f8dd5c40546687ec', 'versionType': 'git'}, {'status': 'affected', 'version': '489d77fbd66375972a380d207f7eb39b00c4a67b', 'versionType': 'git'}, {'status': 'affected', 'version': '5.10.221', 'lessThan': '5.10.261', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.162', 'lessThan': '5.15.212', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.96', 'lessThan': '6.1.178', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.6.36', 'lessThan': '6.6.145', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.19.317', 'lessThan': '4.20', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.279', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.9.7', 'lessThan': '6.10', 'versionType': 'semver'}], 'programFiles': ['drivers/usb/misc/uss720.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/misc/uss720.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea Added Reference https://git.kernel.org/stable/c/1712fd71a5aaf81e47c747f180535fa963ad7830 Added Reference https://git.kernel.org/stable/c/48dd0b2ec9f2e97c486eb68cd0a64b25c1c3df3e Added Reference https://git.kernel.org/stable/c/5e62d7857fd51b908b8371062ee839739a086bbe Added Reference https://git.kernel.org/stable/c/6bbb98bec71b577fda4f4b48f7aea5874b04a576 Added Reference https://git.kernel.org/stable/c/729b68a5bad71220ae0914c8bdab9488ad5be6c8 Added Reference https://git.kernel.org/stable/c/93563243377f8e9b46cc94d9c4f06533dd31b141 Added Reference https://git.kernel.org/stable/c/b4ecbdc4f8830f5586c4a5cfc384c00f20f8f8b3
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.