{"id":"CVE-2026-89944","state":"PUBLISHED","title":"ASoC: hdac_hda: Fix hlink refcount leak on component registration failure","description":"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 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.","publishedAt":"2026-09-16T10:32:31.253Z","updatedAt":"2026-10-30T12:33:32.358Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"1c2625fbdeb17376f76c57b7669e6aa6500a7149","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"60b5824ae259ad15f7878e4e763ec31ba4db55f2","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"7eef9ae3b4ef782557526dd8ba0c206f028d8c2f","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"e8ea01a0457080b0cc7c69c430c0ab65d84dc377","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"6ad4892c4f5cb437a928a02f5b7d37d496aa9268","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/codecs/hdac_hda.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/codecs/hdac_hda.c"]}],"references":["https://git.kernel.org/stable/c/1c2625fbdeb17376f76c57b7669e6aa6500a7149","https://git.kernel.org/stable/c/60b5824ae259ad15f7878e4e763ec31ba4db55f2","https://git.kernel.org/stable/c/7eef9ae3b4ef782557526dd8ba0c206f028d8c2f","https://git.kernel.org/stable/c/e8ea01a0457080b0cc7c69c430c0ab65d84dc377","https://git.kernel.org/stable/c/cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c","https://git.kernel.org/stable/c/6ad4892c4f5cb437a928a02f5b7d37d496aa9268"],"weaknesses":[],"ingestedAt":"2026-10-30T12:52:04.348Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89944.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89944","state":"PUBLISHED","datePublished":"2026-09-16T10:32:31.253Z","dateUpdated":"2026-10-30T12:33:32.358Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.777Z"},"containers":{"cna":{"title":"ASoC: hdac_hda: Fix hlink refcount leak on component registration failure","descriptions":[{"lang":"en","value":"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 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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"1c2625fbdeb17376f76c57b7669e6aa6500a7149","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"60b5824ae259ad15f7878e4e763ec31ba4db55f2","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"7eef9ae3b4ef782557526dd8ba0c206f028d8c2f","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"e8ea01a0457080b0cc7c69c430c0ab65d84dc377","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c","versionType":"git"},{"version":"6bae5ea9498926440ffc883f3dbceb0adc65e492","status":"affected","lessThan":"6ad4892c4f5cb437a928a02f5b7d37d496aa9268","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/codecs/hdac_hda.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/codecs/hdac_hda.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/1c2625fbdeb17376f76c57b7669e6aa6500a7149"},{"url":"https://git.kernel.org/stable/c/60b5824ae259ad15f7878e4e763ec31ba4db55f2"},{"url":"https://git.kernel.org/stable/c/7eef9ae3b4ef782557526dd8ba0c206f028d8c2f"},{"url":"https://git.kernel.org/stable/c/e8ea01a0457080b0cc7c69c430c0ab65d84dc377"},{"url":"https://git.kernel.org/stable/c/cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c"},{"url":"https://git.kernel.org/stable/c/6ad4892c4f5cb437a928a02f5b7d37d496aa9268"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:33:32.358Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}