{"api_version":"1","generated_at":"2026-09-18T01:06:26+00:00","cve":"CVE-2026-89892","urls":{"html":"https://cve.report/CVE-2026-89892","api":"https://cve.report/api/cve/CVE-2026-89892.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89892","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89892"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-09-16 11:16:57","updated_at":"2026-09-16 11:16:57"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/1abe9524dec0fd26e9ceb8d586034d6f68dd8273","name":"https://git.kernel.org/stable/c/1abe9524dec0fd26e9ceb8d586034d6f68dd8273","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0da1e627f4fc9d0e947fdae90913042120878923","name":"https://git.kernel.org/stable/c/0da1e627f4fc9d0e947fdae90913042120878923","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f9322ac9f862961d7f377b87ec26c8565af7e073","name":"https://git.kernel.org/stable/c/f9322ac9f862961d7f377b87ec26c8565af7e073","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/95f76f51937fdfb0fc1e14cae606b1ef574a56f3","name":"https://git.kernel.org/stable/c/95f76f51937fdfb0fc1e14cae606b1ef574a56f3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4666197ca4f7d80cd3b0292054fe45d76be9ba04","name":"https://git.kernel.org/stable/c/4666197ca4f7d80cd3b0292054fe45d76be9ba04","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d06067ee32620f272cfb80c7bc7c572ad4e74724","name":"https://git.kernel.org/stable/c/d06067ee32620f272cfb80c7bc7c572ad4e74724","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4e11c45dfdc72ab656067b1df8fcebaf52fd4715","name":"https://git.kernel.org/stable/c/4e11c45dfdc72ab656067b1df8fcebaf52fd4715","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f8d7e77d9c621b42a191c67a9b37bec23dc1d555","name":"https://git.kernel.org/stable/c/f8d7e77d9c621b42a191c67a9b37bec23dc1d555","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89892","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89892","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4a089668ef22c295ed4997289cc48446c849249c 0da1e627f4fc9d0e947fdae90913042120878923 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4a089668ef22c295ed4997289cc48446c849249c f8d7e77d9c621b42a191c67a9b37bec23dc1d555 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4a089668ef22c295ed4997289cc48446c849249c 1abe9524dec0fd26e9ceb8d586034d6f68dd8273 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4a089668ef22c295ed4997289cc48446c849249c 4e11c45dfdc72ab656067b1df8fcebaf52fd4715 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.51 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.5 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/usb/em28xx/em28xx-cards.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0da1e627f4fc9d0e947fdae90913042120878923","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"},{"lessThan":"f8d7e77d9c621b42a191c67a9b37bec23dc1d555","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"},{"lessThan":"1abe9524dec0fd26e9ceb8d586034d6f68dd8273","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"},{"lessThan":"4e11c45dfdc72ab656067b1df8fcebaf52fd4715","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"},{"lessThan":"d06067ee32620f272cfb80c7bc7c572ad4e74724","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"},{"lessThan":"f9322ac9f862961d7f377b87ec26c8565af7e073","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"},{"lessThan":"4666197ca4f7d80cd3b0292054fe45d76be9ba04","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"},{"lessThan":"95f76f51937fdfb0fc1e14cae606b1ef574a56f3","status":"affected","version":"4a089668ef22c295ed4997289cc48446c849249c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/usb/em28xx/em28xx-cards.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.17"},{"lessThan":"4.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.5","versionStartIncluding":"4.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"4.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-09-16T10:31:54.665Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"},{"url":"https://git.kernel.org/stable/c/d06067ee32620f272cfb80c7bc7c572ad4e74724"},{"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","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89892","datePublished":"2026-09-16T10:31:54.665Z","dateReserved":"2026-09-11T19:38:34.773Z","dateUpdated":"2026-09-16T10:31:54.665Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 11:16:57","lastModifiedDate":"2026-09-16 11:16:57","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89892","Ordinal":"1","Title":"media: em28xx: defer audio-only extension registration","CVE":"CVE-2026-89892","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89892","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"media: em28xx: defer audio-only extension registration"}]}}}