PT-2026-61216 · Linux · Linux

CVE-2026-63899 · Published 2026-07-19 · Updated 2026-07-19

NVD

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: mxuport: fix memory corruption with small endpoint

Make sure that the bulk-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption should a malicious device report a smaller size.

Related Identifiers

CVE-2026-63899

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-63899 · Security Note
• https://git.kernel.org/stable/c/2f3661eb2446e1ef593da45e01a3b21a906768ec · Note
• https://git.kernel.org/stable/c/b40166b4ef96067620a0f248e74ad9658c8f680c · Note
• https://git.kernel.org/stable/c/be3a1ed4ae51fa8dde57383277d336ce834f2cd9 · Note
• https://git.kernel.org/stable/c/6c0cf56f00f280d72180bb6ce79741bc787a6269 · Note
• https://git.kernel.org/stable/c/ccbec56f2f9af008f1574335cc6a668f16603e47 · Note
• https://git.kernel.org/stable/c/e906545641d34fb1a09a65b4b5cfdff40eb09681 · Note
• https://git.kernel.org/stable/c/4085f0dbb1ce2251c9a5938d693de6593f0ab2bd · Note
• https://git.kernel.org/stable/c/086b858b5f5125bc9d967ea2bd825f83d9f8f29d · Note