CVE-2026-31602

A flaw was found in the Linux kernel's ALSA (Advanced Linux Sound Architecture) ctxfi driver. When handling memory allocations, the ct_vm_map() function can attempt to access memory beyond its allocated boundaries if aggregate memory allocations exceed a single page limit. This out-of-bounds access triggers a page fault, which can lead to a system crash. A local attacker could exploit this vulnerability to cause a Denial of Service (DoS) on the affected system.