CVE-2026-90781

A flaw was found in alsa-lib. This vulnerability is an off-by-one stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function. A local attacker can exploit this by supplying a specially crafted, long control-element identifier string through saved state files or command-line arguments. This can cause the application to write one byte past a 64-byte buffer, leading to adjacent stack memory corruption and a crash of the calling process, resulting in 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.