CVE-2026-64338 (GCVE-0-2026-64338)
Vulnerability from cvelistv5
Published
2026-07-25 08:50
Modified
2026-08-17 04:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 04736c1bc32197f7d859e01a96ae80a16659931d Version: 4eaf2331a77996bbbaf2b824d452ac8ebda7e6e7 Version: 8fc246a8a456679993df565d3c9e3da28030ee43 Version: 10132ccf99f49b43aeb7470df50d72344a601ad6 Version: 3295f1b866bfbcabd625511968e8a5c541f9ab32 Version: 3295f1b866bfbcabd625511968e8a5c541f9ab32 Version: 3295f1b866bfbcabd625511968e8a5c541f9ab32 Version: 3295f1b866bfbcabd625511968e8a5c541f9ab32 Version: 02d13616ca30014ed96302e51a5b0e17664e58bc Version: dff3b01e91a3df93063b03d0f8dd5c40546687ec Version: 489d77fbd66375972a380d207f7eb39b00c4a67b Version: 5.10.221 ≤ Version: 5.15.162 ≤ Version: 6.1.96 ≤ Version: 6.6.36 ≤ Version: 4.19.317 ≤ Version: 5.4.279 ≤ Version: 6.9.7 ≤ |
||
{
"containers": {
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],
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}
],
"cpeApplicability": [
{
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],
"negate": false,
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: misc: uss720: unregister parport on probe failure\n\nuss720_probe() registers a parport before reading the 1284 register used\nto detect unsupported Belkin F5U002 adapters. If get_1284_register()\nfails, the error path drops the driver private data and the USB device\nreference, but leaves the parport device registered.\n\nLeaving the port registered is more than a private allocation leak:\nparport_register_port() has already reserved a parport number and\nregistered the parport bus device, while pp-\u003eprivate_data still points at\nthe private data that the common error path is about to release.\n\nUndo the pre-announce registration in the get_1284_register() failure\nbranch before jumping to the common private-data cleanup path. Clear\npriv-\u003epp first, matching the disconnect path and avoiding a stale pointer\nin the private data.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T04:53:41.636Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/6bbb98bec71b577fda4f4b48f7aea5874b04a576"
},
{
"url": "https://git.kernel.org/stable/c/93563243377f8e9b46cc94d9c4f06533dd31b141"
},
{
"url": "https://git.kernel.org/stable/c/1712fd71a5aaf81e47c747f180535fa963ad7830"
},
{
"url": "https://git.kernel.org/stable/c/0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea"
},
{
"url": "https://git.kernel.org/stable/c/5e62d7857fd51b908b8371062ee839739a086bbe"
},
{
"url": "https://git.kernel.org/stable/c/729b68a5bad71220ae0914c8bdab9488ad5be6c8"
},
{
"url": "https://git.kernel.org/stable/c/48dd0b2ec9f2e97c486eb68cd0a64b25c1c3df3e"
},
{
"url": "https://git.kernel.org/stable/c/b4ecbdc4f8830f5586c4a5cfc384c00f20f8f8b3"
}
],
"title": "USB: misc: uss720: unregister parport on probe failure",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-64338",
"datePublished": "2026-07-25T08:50:02.673Z",
"dateReserved": "2026-07-19T15:36:31.781Z",
"dateUpdated": "2026-08-17T04:53:41.636Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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