{"id":"CVE-2026-89892","revision":"5f25d1f448194b54904d511dc6712329","records":[{"revision":"5f25d1f448194b54904d511dc6712329","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89892","aliases":[],"title":"media: em28xx: defer audio-only extension registration","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: em28xx: defer audio-only extension registration\n\nThe audio-only path registers extensions while probing the primary device.\nFor a dual-TS board, this happens before dev_next is created. The duplicate\ndevice inherits is_audio_only and is then independently inserted into\nem28xx_devlist.\n\nThe list is intended to contain only primary devices: extension operations\nreach the secondary device through dev_next. The independently linked\nsecondary can be freed during disconnect while its list node remains\nreachable, resulting in a use-after-free.\n\nDefer audio-only extension registration to the module-request work item. It\nruns only after probing has completed construction of the optional\nsecondary device, so only the primary is registered and extension callbacks\nreach the secondary through dev_next.","state":0,"publishedAt":"2026-09-16T10:31:54.665+00:00","modifiedAt":"2026-10-19T08:54:25.221+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/usb/em28xx/em28xx-cards.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"0da1e627f4fc9d0e947fdae90913042120878923\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"f8d7e77d9c621b42a191c67a9b37bec23dc1d555\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"1abe9524dec0fd26e9ceb8d586034d6f68dd8273\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"4e11c45dfdc72ab656067b1df8fcebaf52fd4715\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"d06067ee32620f272cfb80c7bc7c572ad4e74724\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"f9322ac9f862961d7f377b87ec26c8565af7e073\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"4666197ca4f7d80cd3b0292054fe45d76be9ba04\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a089668ef22c295ed4997289cc48446c849249c\",\n                            \"lessThan\": \"95f76f51937fdfb0fc1e14cae606b1ef574a56f3\",\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/usb/em28xx/em28xx-cards.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.17\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.17\",\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/0da1e627f4fc9d0e947fdae90913042120878923","https://git.kernel.org/stable/c/f8d7e77d9c621b42a191c67a9b37bec23dc1d555","https://git.kernel.org/stable/c/1abe9524dec0fd26e9ceb8d586034d6f68dd8273","https://git.kernel.org/stable/c/4e11c45dfdc72ab656067b1df8fcebaf52fd4715","https://git.kernel.org/stable/c/d06067ee32620f272cfb80c7bc7c572ad4e74724","https://git.kernel.org/stable/c/f9322ac9f862961d7f377b87ec26c8565af7e073","https://git.kernel.org/stable/c/4666197ca4f7d80cd3b0292054fe45d76be9ba04","https://git.kernel.org/stable/c/95f76f51937fdfb0fc1e14cae606b1ef574a56f3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89892","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89892","identifiers":["CVE-2026-89892"]},"retained":false,"historicalAffected":[]}],"coverage":[]}