{"api_version":"1","generated_at":"2026-09-18T05:53:34+00:00","cve":"CVE-2026-89895","urls":{"html":"https://cve.report/CVE-2026-89895","api":"https://cve.report/api/cve/CVE-2026-89895.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89895","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89895"},"summary":{"title":"media: cobalt: Avoid freeing ALSA private data twice","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cobalt: Avoid freeing ALSA private data twice\n\nsnd_cobalt_card_create() stores cobsc in sc->private_data and installs\nsnd_cobalt_card_private_free() as sc->private_free. From that point,\nsnd_card_free(sc) releases cobsc through the ALSA card cleanup path.\n\nIf cobalt_alsa_init() fails after snd_cobalt_card_create(), the\nerr_exit_free path calls snd_card_free(sc) and then kfree(cobsc). That\nsecond free releases the same object again.\n\nRemove the explicit kfree(cobsc) and leave ownership with the ALSA card.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-16 11:16:58","updated_at":"2026-09-16 11:16:58"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/75bbf45e3a954e292ae26832d2df40ca2e3ee452","name":"https://git.kernel.org/stable/c/75bbf45e3a954e292ae26832d2df40ca2e3ee452","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cb1218da234ea15fa14d90e2d049d686874d7aa3","name":"https://git.kernel.org/stable/c/cb1218da234ea15fa14d90e2d049d686874d7aa3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8c6610e230b9355cf7df5a338a0592c0f088c00b","name":"https://git.kernel.org/stable/c/8c6610e230b9355cf7df5a338a0592c0f088c00b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/61dfa8ded5efc3a25d331fa9ce5cebb85531fe70","name":"https://git.kernel.org/stable/c/61dfa8ded5efc3a25d331fa9ce5cebb85531fe70","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fe65028ee72a7e07e572b351891bd7a1f8917d33","name":"https://git.kernel.org/stable/c/fe65028ee72a7e07e572b351891bd7a1f8917d33","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1","name":"https://git.kernel.org/stable/c/3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8","name":"https://git.kernel.org/stable/c/42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6cbc8a73b3464ebeccc49987b7233b6b087b8504","name":"https://git.kernel.org/stable/c/6cbc8a73b3464ebeccc49987b7233b6b087b8504","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89895","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89895","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f 75bbf45e3a954e292ae26832d2df40ca2e3ee452 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f fe65028ee72a7e07e572b351891bd7a1f8917d33 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f 61dfa8ded5efc3a25d331fa9ce5cebb85531fe70 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f 42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f 6cbc8a73b3464ebeccc49987b7233b6b087b8504 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f cb1218da234ea15fa14d90e2d049d686874d7aa3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f 8c6610e230b9355cf7df5a338a0592c0f088c00b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 85756a069c55e0315ac5990806899cfb607b987f 3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.270 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.51 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.5 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/pci/cobalt/cobalt-alsa-main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"75bbf45e3a954e292ae26832d2df40ca2e3ee452","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"},{"lessThan":"fe65028ee72a7e07e572b351891bd7a1f8917d33","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"},{"lessThan":"61dfa8ded5efc3a25d331fa9ce5cebb85531fe70","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"},{"lessThan":"42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"},{"lessThan":"6cbc8a73b3464ebeccc49987b7233b6b087b8504","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"},{"lessThan":"cb1218da234ea15fa14d90e2d049d686874d7aa3","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"},{"lessThan":"8c6610e230b9355cf7df5a338a0592c0f088c00b","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"},{"lessThan":"3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1","status":"affected","version":"85756a069c55e0315ac5990806899cfb607b987f","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/pci/cobalt/cobalt-alsa-main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.2"},{"lessThan":"4.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.5","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"4.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cobalt: Avoid freeing ALSA private data twice\n\nsnd_cobalt_card_create() stores cobsc in sc->private_data and installs\nsnd_cobalt_card_private_free() as sc->private_free. From that point,\nsnd_card_free(sc) releases cobsc through the ALSA card cleanup path.\n\nIf cobalt_alsa_init() fails after snd_cobalt_card_create(), the\nerr_exit_free path calls snd_card_free(sc) and then kfree(cobsc). That\nsecond free releases the same object again.\n\nRemove the explicit kfree(cobsc) and leave ownership with the ALSA card.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review."}],"providerMetadata":{"dateUpdated":"2026-09-16T10:31:56.817Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/75bbf45e3a954e292ae26832d2df40ca2e3ee452"},{"url":"https://git.kernel.org/stable/c/fe65028ee72a7e07e572b351891bd7a1f8917d33"},{"url":"https://git.kernel.org/stable/c/61dfa8ded5efc3a25d331fa9ce5cebb85531fe70"},{"url":"https://git.kernel.org/stable/c/42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8"},{"url":"https://git.kernel.org/stable/c/6cbc8a73b3464ebeccc49987b7233b6b087b8504"},{"url":"https://git.kernel.org/stable/c/cb1218da234ea15fa14d90e2d049d686874d7aa3"},{"url":"https://git.kernel.org/stable/c/8c6610e230b9355cf7df5a338a0592c0f088c00b"},{"url":"https://git.kernel.org/stable/c/3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1"}],"title":"media: cobalt: Avoid freeing ALSA private data twice","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89895","datePublished":"2026-09-16T10:31:56.817Z","dateReserved":"2026-09-11T19:38:34.773Z","dateUpdated":"2026-09-16T10:31:56.817Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 11:16:58","lastModifiedDate":"2026-09-16 11:16:58","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89895","Ordinal":"1","Title":"media: cobalt: Avoid freeing ALSA private data twice","CVE":"CVE-2026-89895","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89895","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cobalt: Avoid freeing ALSA private data twice\n\nsnd_cobalt_card_create() stores cobsc in sc->private_data and installs\nsnd_cobalt_card_private_free() as sc->private_free. From that point,\nsnd_card_free(sc) releases cobsc through the ALSA card cleanup path.\n\nIf cobalt_alsa_init() fails after snd_cobalt_card_create(), the\nerr_exit_free path calls snd_card_free(sc) and then kfree(cobsc). That\nsecond free releases the same object again.\n\nRemove the explicit kfree(cobsc) and leave ownership with the ALSA card.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.","Type":"Description","Title":"media: cobalt: Avoid freeing ALSA private data twice"}]}}}