CVE-2026-63898
USB: serial: mct_u232: fix memory corruption with small endpoint
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix memory corruption with small endpoint The driver overrides the maximum transfer size for a specific device which only accepts 16 byte packets for its 32 byte bulk-out endpoint. Make sure to never increase the maximum transfer size to prevent slab corruption should a malicious device report a smaller endpoint max packet size than expected.
Timeline
- CVE published
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.12
References 8
git.kernel.org
- stable/c/94edbbc5fe00d03cfe1d4e690d7d2cd36317a935
- stable/c/bd2ddb3fe9052ad8703593bbec26ecc7ca92869e
- stable/c/39e295a91e80f3b91f61c7ada2bde434dcaba20d
- stable/c/90dbad14b109e5fdfb4934ff61e561d11ba3742d
- stable/c/6cb48f8890f9b2051d7c34823057296a536a31c5
- stable/c/d8fdf33d6fcfb90cbec26299baf2352c84b2d768
- stable/c/57f332af1745014cd7e40414814ffaa6bc7d3b5b
- stable/c/915b36d701950503c4ea0f6e314b10868e59fce3