USB: misc: uss720: unregister parport on probe failure
Summary
| CVE | CVE-2026-64338 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-25 10:17:15 UTC |
| Updated | 2026-08-11 15:00:57 UTC |
| 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. |
Risk And Classification
EPSS: 0.001770000 probability, percentile 0.074190000 (date 2026-08-11)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 04736c1bc32197f7d859e01a96ae80a16659931d 6bbb98bec71b577fda4f4b48f7aea5874b04a576 git | Not specified |
| CNA | Linux | Linux | affected 4eaf2331a77996bbbaf2b824d452ac8ebda7e6e7 93563243377f8e9b46cc94d9c4f06533dd31b141 git | Not specified |
| CNA | Linux | Linux | affected 8fc246a8a456679993df565d3c9e3da28030ee43 1712fd71a5aaf81e47c747f180535fa963ad7830 git | Not specified |
| CNA | Linux | Linux | affected 10132ccf99f49b43aeb7470df50d72344a601ad6 0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea git | Not specified |
| CNA | Linux | Linux | affected 3295f1b866bfbcabd625511968e8a5c541f9ab32 5e62d7857fd51b908b8371062ee839739a086bbe git | Not specified |
| CNA | Linux | Linux | affected 3295f1b866bfbcabd625511968e8a5c541f9ab32 729b68a5bad71220ae0914c8bdab9488ad5be6c8 git | Not specified |
| CNA | Linux | Linux | affected 3295f1b866bfbcabd625511968e8a5c541f9ab32 48dd0b2ec9f2e97c486eb68cd0a64b25c1c3df3e git | Not specified |
| CNA | Linux | Linux | affected 3295f1b866bfbcabd625511968e8a5c541f9ab32 b4ecbdc4f8830f5586c4a5cfc384c00f20f8f8b3 git | Not specified |
| CNA | Linux | Linux | affected 02d13616ca30014ed96302e51a5b0e17664e58bc git | Not specified |
| CNA | Linux | Linux | affected dff3b01e91a3df93063b03d0f8dd5c40546687ec git | Not specified |
| CNA | Linux | Linux | affected 489d77fbd66375972a380d207f7eb39b00c4a67b git | Not specified |
| CNA | Linux | Linux | affected 5.10.221 5.10.261 semver | Not specified |
| CNA | Linux | Linux | affected 5.15.162 5.15.212 semver | Not specified |
| CNA | Linux | Linux | affected 6.1.96 6.1.178 semver | Not specified |
| CNA | Linux | Linux | affected 6.6.36 6.6.145 semver | Not specified |
| CNA | Linux | Linux | affected 4.19.317 4.20 semver | Not specified |
| CNA | Linux | Linux | affected 5.4.279 5.5 semver | Not specified |
| CNA | Linux | Linux | affected 6.9.7 6.10 semver | Not specified |
| CNA | Linux | Linux | affected 6.10 | Not specified |
| CNA | Linux | Linux | unaffected 6.10 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.261 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.212 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.178 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.96 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.39 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.4 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2-rc3 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/729b68a5bad71220ae0914c8bdab9488ad5be6c8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b4ecbdc4f8830f5586c4a5cfc384c00f20f8f8b3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/48dd0b2ec9f2e97c486eb68cd0a64b25c1c3df3e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5e62d7857fd51b908b8371062ee839739a086bbe | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/1712fd71a5aaf81e47c747f180535fa963ad7830 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0b3073f40cc9f95d5ff0037eb0a06f5c1725a7ea | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/93563243377f8e9b46cc94d9c4f06533dd31b141 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6bbb98bec71b577fda4f4b48f7aea5874b04a576 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.