CVE-2026-63898 — USB: serial: mct_u232: fix memory corruption with small endpoint
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 …
Published: 2026-07-19 · CVSS: Unscored
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7