{"id":"CVE-2026-89887","revision":"b2eb4f0a46f44182aa673f9ccfc25283","records":[{"revision":"b2eb4f0a46f44182aa673f9ccfc25283","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89887","aliases":[],"title":"media: i2c: ov7740: fix use-after-destroy in remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: i2c: ov7740: fix use-after-destroy in remove\n\nThe ov7740_remove() function had a severe teardown order bug where it\ndestroyed the driver's mutex before freeing the V4L2 control handler\nwhich relies on that mutex, leading to a use-after-destroy kernel panic.\nFurthermore, the driver explicitly called v4l2_ctrl_handler_free() and\nmutex_destroy() sequentially, but then called ov7740_free_controls()\nwhich invokes both of them a second time, resulting in a double-free.\n\nThis patch fixes the issue by unregistering the subdevice first, and\nrelying exclusively on ov7740_free_controls() to safely tear down the\nmutex and control handler in the correct order.","state":0,"publishedAt":"2026-09-16T10:31:51.195+00:00","modifiedAt":"2026-10-19T08:54:20.308+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/i2c/ov7740.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"9e4693436c7dcf8584002500ce4b434b79bbf9ed\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"81e9765878d3ac8ad18e3a683332b5d6bc3a0e33\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"7512838a19af0a284a58435292243fad21e57ff1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"25e2505866c577db2661e4d431f0907c6ec9a3b4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"af81f35e4f429e769b784754e1aa4d7a922470ac\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"09453b467990e8ef8fe09f45a685f9a625248d33\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"39c5c4471b8d793daf868bd004e56ed420e89707\",\n                            \"lessThan\": \"5d1b3dea5a44124bab6c14a2d71b977dabed54e7\",\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/i2c/ov7740.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.16\",\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":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/9e4693436c7dcf8584002500ce4b434b79bbf9ed","https://git.kernel.org/stable/c/81e9765878d3ac8ad18e3a683332b5d6bc3a0e33","https://git.kernel.org/stable/c/8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e","https://git.kernel.org/stable/c/7512838a19af0a284a58435292243fad21e57ff1","https://git.kernel.org/stable/c/25e2505866c577db2661e4d431f0907c6ec9a3b4","https://git.kernel.org/stable/c/af81f35e4f429e769b784754e1aa4d7a922470ac","https://git.kernel.org/stable/c/09453b467990e8ef8fe09f45a685f9a625248d33","https://git.kernel.org/stable/c/5d1b3dea5a44124bab6c14a2d71b977dabed54e7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89887","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89887","identifiers":["CVE-2026-89887"]},"retained":false,"historicalAffected":[]}],"coverage":[]}