Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2026-64338

USB: misc: uss720: unregister parport on probe failure

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 4.20, and 2 more
None on Exploit-DB, Metasploit or GitHub

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 5.10.221 · fixed in 5.10.261; From 5.15.162 · fixed in 5.15.212; From 6.1.96 · fixed in 6.1.178; From 6.6.36 · fixed in 6.6.145; From 4.19.317 · fixed in 4.20; From 5.4.279 · fixed in 5.5; From 6.9.7 · fixed in 6.10

  • Linux Linux

    6.10

References 8

git.kernel.org