CVE-2026-63956

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < 4fcb22218f0a7229b7ce3b3952fb644def293fa5affected
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < ad3d1628a46134276546d7a12fedf04be9979158affected
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < 52e18ae0c47c5c89e18fcd8022f287f7cc8802ecaffected
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < 4bcaa59f403dbde6328604a500d65ee8d40975d9affected
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < 1ef25704bd3b625fd151c09feee459479f71ee64affected
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < 284105c40fc31fff90cdab8a0377aaeb92f87f0eaffected
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < 6c13f3bb652bc8665e709ba07122612586aea648affected
LinuxLinux3416eaa1f8f8d516b77de514e14cf8da256d28fb < e1a9d791fd66ab2431b9e6f6f835823809869047affected
LinuxLinux2.6.26affected
LinuxLinux0 < 2.6.26unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.143 <= 6.6.*unaffected
LinuxLinux6.12.93 <= 6.12.*unaffected
LinuxLinux6.18.35 <= 6.18.*unaffected
LinuxLinux7.0.12 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References