PT-2026-61273 · Linux · Linux

CVE-2026-63956 · Published 2026-07-19 · Updated 2026-07-19

Mitre

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

USB: serial: cypress m8: fix memory corruption with small endpoint

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

Related Identifiers

CVE-2026-63956

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-63956 · Security Note
• https://git.kernel.org/stable/c/284105c40fc31fff90cdab8a0377aaeb92f87f0e · Note
• https://git.kernel.org/stable/c/6c13f3bb652bc8665e709ba07122612586aea648 · Note
• https://git.kernel.org/stable/c/e1a9d791fd66ab2431b9e6f6f835823809869047 · Note
• https://git.kernel.org/stable/c/4bcaa59f403dbde6328604a500d65ee8d40975d9 · Note
• https://git.kernel.org/stable/c/52e18ae0c47c5c89e18fcd8022f287f7cc8802ec · Note
• https://git.kernel.org/stable/c/ad3d1628a46134276546d7a12fedf04be9979158 · Note
• https://git.kernel.org/stable/c/4fcb22218f0a7229b7ce3b3952fb644def293fa5 · Note
• https://git.kernel.org/stable/c/1ef25704bd3b625fd151c09feee459479f71ee64 · Note