UBUNTU-CVE-2026-93056: Medium severity ubuntu/linux-aws vulnerability

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fuac1legacy: remove broken string configfs attributes The UAC1STRATTRIBUTE macro defines configfs show/store handlers for the fnplay, fncap, and fncntl string options. The store function contains an inverted null check on the kstrndup() return value. This means every write attempt returns -ENOMEM on success and dereferences a NULL pointer on allocation failure. The attributes have been broken and unused for many years. Remove the UAC1STRATTRIBUTE macro and the three attributes it generated. The internal defaults (FILEPCMPLAYBACK, FILEPCMCAPTURE, FILECONTROL) set in faudioallocinst() are unaffected.