CVE-2026-64484

A flaw was found in the Linux kernel's ALSA (Advanced Linux Sound Architecture) es1938 sound driver. This vulnerability arises when a memory allocation failure causes the snd_ctl_new1() function to return a null value. The snd_es1938_mixer() function then attempts to use this null value without proper validation, leading to a null pointer dereference. This can result in a system crash, causing a Denial of Service (DoS) for affected systems.