{"id":"CVE-2026-89895","revision":"10ca28bead2a4eb4a6e8fef3971b5226","records":[{"revision":"10ca28bead2a4eb4a6e8fef3971b5226","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89895","aliases":[],"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":0,"publishedAt":"2026-09-16T10:31:56.817+00:00","modifiedAt":"2026-10-19T08:54:28.227+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/media/pci/cobalt/cobalt-alsa-main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"75bbf45e3a954e292ae26832d2df40ca2e3ee452\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"fe65028ee72a7e07e572b351891bd7a1f8917d33\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"61dfa8ded5efc3a25d331fa9ce5cebb85531fe70\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"6cbc8a73b3464ebeccc49987b7233b6b087b8504\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"cb1218da234ea15fa14d90e2d049d686874d7aa3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"8c6610e230b9355cf7df5a338a0592c0f088c00b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85756a069c55e0315ac5990806899cfb607b987f\",\n                            \"lessThan\": \"3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/media/pci/cobalt/cobalt-alsa-main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/75bbf45e3a954e292ae26832d2df40ca2e3ee452","https://git.kernel.org/stable/c/fe65028ee72a7e07e572b351891bd7a1f8917d33","https://git.kernel.org/stable/c/61dfa8ded5efc3a25d331fa9ce5cebb85531fe70","https://git.kernel.org/stable/c/42e00371f83c3fc7b99a36bf0229c74ad5d3c7d8","https://git.kernel.org/stable/c/6cbc8a73b3464ebeccc49987b7233b6b087b8504","https://git.kernel.org/stable/c/cb1218da234ea15fa14d90e2d049d686874d7aa3","https://git.kernel.org/stable/c/8c6610e230b9355cf7df5a338a0592c0f088c00b","https://git.kernel.org/stable/c/3a7d6b9c4cb5ac18cbd3f1c7f8c7b159c42ba0b1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89895","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89895","identifiers":["CVE-2026-89895"]},"retained":false,"historicalAffected":[]}],"coverage":[]}