CVE-2026-56109

A flaw was found in the ALSA (Advanced Linux Sound Architecture) library. This double-free vulnerability, located in the parse_def() function, allows a local attacker to corrupt memory by providing specially crafted ALSA configuration text. When processing nested configuration blocks, the library attempts to free an already freed memory node. This can lead to system instability, crashes, or a denial of service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.