CVE-2026-63963

Summary

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

usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers

Properly validate the count passed from a device when calling svdm_consume_identity() or svdm_consume_identity_sop_prime() as the device-controlled value could index off of the static arrays, which could leak data.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf0690a25a140b853b1842fa80faf828601bb47e8 < 569f7971542eb10025d8a0989b83f28a29d8ba20affected
LinuxLinuxf0690a25a140b853b1842fa80faf828601bb47e8 < f9d787fbe83127105e42088cca40e5118db0d810affected
LinuxLinuxf0690a25a140b853b1842fa80faf828601bb47e8 < ed8649f3822e211d025bcab5158af6f8a38c8705affected
LinuxLinuxf0690a25a140b853b1842fa80faf828601bb47e8 < 8fbc349e8383125dd2d8de1c1e926279d398ab17affected
LinuxLinux4.12affected
LinuxLinux0 < 4.12unaffected
LinuxLinux6.12.93 <= 6.12.*unaffected
LinuxLinux6.18.35 <= 6.18.*unaffected
LinuxLinux7.0.12 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References