{"id":"CVE-2026-89895","summary":"media: cobalt: Avoid freeing ALSA private data twice","details":"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-\u003eprivate_data and installs\nsnd_cobalt_card_private_free() as sc-\u003eprivate_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.","modified":"2026-09-18T03:48:33.751985062Z","published":"2026-09-16T10:31:56.817Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89895.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/61dfa8ded5efc3a25d331fa9ce5cebb85531fe70"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6cbc8a73b3464ebeccc49987b7233b6b087b8504"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75bbf45e3a954e292ae26832d2df40ca2e3ee452"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8c6610e230b9355cf7df5a338a0592c0f088c00b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cb1218da234ea15fa14d90e2d049d686874d7aa3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe65028ee72a7e07e572b351891bd7a1f8917d33"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89895.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89895"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"85756a069c55e0315ac5990806899cfb607b987f"},{"fixed":"75bbf45e3a954e292ae26832d2df40ca2e3ee452"},{"fixed":"fe65028ee72a7e07e572b351891bd7a1f8917d33"},{"fixed":"61dfa8ded5efc3a25d331fa9ce5cebb85531fe70"},{"fixed":"42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8"},{"fixed":"6cbc8a73b3464ebeccc49987b7233b6b087b8504"},{"fixed":"cb1218da234ea15fa14d90e2d049d686874d7aa3"},{"fixed":"8c6610e230b9355cf7df5a338a0592c0f088c00b"},{"fixed":"3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89895.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89895.json"}}],"schema_version":"1.9.0"}