{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89892",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.773Z",
        "datePublished": "2026-09-16T10:31:54.665Z",
        "dateUpdated": "2026-10-19T08:54:25.221Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:54:25.221Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/usb/em28xx/em28xx-cards.c"
                    ],
                    "versions": [
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "0da1e627f4fc9d0e947fdae90913042120878923",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "f8d7e77d9c621b42a191c67a9b37bec23dc1d555",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "1abe9524dec0fd26e9ceb8d586034d6f68dd8273",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "4e11c45dfdc72ab656067b1df8fcebaf52fd4715",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "d06067ee32620f272cfb80c7bc7c572ad4e74724",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "f9322ac9f862961d7f377b87ec26c8565af7e073",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "4666197ca4f7d80cd3b0292054fe45d76be9ba04",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a089668ef22c295ed4997289cc48446c849249c",
                            "lessThan": "95f76f51937fdfb0fc1e14cae606b1ef574a56f3",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/usb/em28xx/em28xx-cards.c"
                    ],
                    "versions": [
                        {
                            "version": "4.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.51",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.5",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.17",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionStartIncluding": "4.17",
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                                    "versionStartIncluding": "4.17",
                                    "versionEndExcluding": "7.3"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0da1e627f4fc9d0e947fdae90913042120878923"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f8d7e77d9c621b42a191c67a9b37bec23dc1d555"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1abe9524dec0fd26e9ceb8d586034d6f68dd8273"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4e11c45dfdc72ab656067b1df8fcebaf52fd4715"
                },
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                    "url": "https://git.kernel.org/stable/c/d06067ee32620f272cfb80c7bc7c572ad4e74724"
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                    "url": "https://git.kernel.org/stable/c/f9322ac9f862961d7f377b87ec26c8565af7e073"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4666197ca4f7d80cd3b0292054fe45d76be9ba04"
                },
                {
                    "url": "https://git.kernel.org/stable/c/95f76f51937fdfb0fc1e14cae606b1ef574a56f3"
                }
            ],
            "title": "media: em28xx: defer audio-only extension registration",
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}