CVE-2026-39314 CUPS has an integer underflow in `_ppdCreateFromIPP` causes root cupsd crash via negative `job-password-supported`

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer underflow vulnerability in ppdCreateFromIPP cups/ppd-cache.c allows any unprivileged local user to crash the cupsd root process by supplying a negative...