CVE-2026-89944
kernel: ASoC: hdac_hda: Fix hlink refcount leak on component registration failure
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 16, 2026
Updated · September 30, 2026
Description
A flaw was found in the Linux kernel's Audio System on Chip (ASoC) High Definition Audio Codec (hdac_hda) component. During the device probing process, a reference to an HDA link is acquired but not properly released if the ASoC component registration fails. This oversight leads to a reference count leak, which could result in resource exhaustion and potentially impact system stability or lead to a Denial of Service (DoS).
CVSS score applicability
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
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-911 · Improper Update of Reference Count