{"id":"CVE-2026-89944","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: hdac_hda: Fix hlink refcount leak on component registration failure\n\nhdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get()\nbefore registering th…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: hdac_hda: Fix hlink refcount leak on component registration failure\n\nhdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get()\nbefore registering th…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 6bae5ea9498926440ffc883f3dbceb0adc65e492 < 7eef9ae3b4ef782557526dd8ba0c206f028d8c2f","Linux >= 6bae5ea9498926440ffc883f3dbceb0adc65e492 < e8ea01a0457080b0cc7c69c430c0ab65d84dc377","Linux >= 6bae5ea9498926440ffc883f3dbceb0adc65e492 < cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c","Linux >= 6bae5ea9498926440ffc883f3dbceb0adc65e492 < 6ad4892c4f5cb437a928a02f5b7d37d496aa9268","Linux 4.20"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:17:04.217","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89944","references":[{"url":"https://git.kernel.org/stable/c/6ad4892c4f5cb437a928a02f5b7d37d496aa9268","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7eef9ae3b4ef782557526dd8ba0c206f028d8c2f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e8ea01a0457080b0cc7c69c430c0ab65d84dc377","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89944.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89944"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535334"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89944"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89944"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89944.mbox"},{"url":"https://git.kernel.org/stable/c/60b5824ae259ad15f7878e4e763ec31ba4db55f2"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-16T10:53:53.965Z","epss":0.00201,"epssPercentile":0.09837,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-911"],"slug":"CVE-2026-89944","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nASoC: hdac_hda: Fix hlink refcount leak on component registration failure\n\nhdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get()\nbefore registering the ASoC component. If component registration fails,\nthe function returns without dropping the link reference.\n\nAlways call snd_hdac_ext_bus_link_put() after the registration attempt so\nthe reference taken during probe is balanced on both success and failure.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-29 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89944.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":210011,"id":"CVE-2026-89944","ts":1790235653755,"field":"cvss","old":null,"new":"5.5"},{"seq":210010,"id":"CVE-2026-89944","ts":1790235653755,"field":"severity","old":"none","new":"medium"}]}