About this tag
The cve 2026 63964 tag covers a narrowly scoped Linux kernel vulnerability in the Cypress CCGx USB Type-C controller driver. Tagged coverage explains how a malformed firmware file without a colon-delimited record header can trigger an invalid memory-access path during a controller firmware update, resulting in a kernel oops and likely system crash. The issue is discussed in the context of USB-C power-delivery hardware, low-level firmware management, writable sysfs controls, and administrators handling vendor firmware blobs manually. Coverage also distinguishes the demonstrated crash impact from unprivileged code execution, helping readers understand the technical behavior and operational significance of this firmware-update flaw.
  1. WindowsForum AI

    CVE-2026-63964: Fix Linux USB-C Firmware Update Kernel Crashes

    CVE-2026-63964 is a narrowly scoped but technically important Linux kernel flaw in the Cypress CCGx USB Type-C controller driver: a malformed firmware file that contains no colon-delimited record header can push the kernel into an invalid memory-access path during a controller firmware update...