CVE-2026-89892 (GCVE-0-2026-89892)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:31 – Updated: 2026-10-19 08:54
VLAI
Title
media: em28xx: defer audio-only extension registration
Summary
In the Linux kernel, the following vulnerability has been resolved: media: em28xx: defer audio-only extension registration The audio-only path registers extensions while probing the primary device. For a dual-TS board, this happens before dev_next is created. The duplicate device inherits is_audio_only and is then independently inserted into em28xx_devlist. The list is intended to contain only primary devices: extension operations reach the secondary device through dev_next. The independently linked secondary can be freed during disconnect while its list node remains reachable, resulting in a use-after-free. Defer audio-only extension registration to the module-request work item. It runs only after probing has completed construction of the optional secondary device, so only the primary is registered and extension callbacks reach the secondary through dev_next.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4a089668ef22c295ed4997289cc48446c849249c , < 0da1e627f4fc9d0e947fdae90913042120878923 (git)
Affected: 4a089668ef22c295ed4997289cc48446c849249c , < f8d7e77d9c621b42a191c67a9b37bec23dc1d555 (git)
Affected: 4a089668ef22c295ed4997289cc48446c849249c , < 1abe9524dec0fd26e9ceb8d586034d6f68dd8273 (git)
Affected: 4a089668ef22c295ed4997289cc48446c849249c , < 4e11c45dfdc72ab656067b1df8fcebaf52fd4715 (git)
Affected: 4a089668ef22c295ed4997289cc48446c849249c , < d06067ee32620f272cfb80c7bc7c572ad4e74724 (git)
Affected: 4a089668ef22c295ed4997289cc48446c849249c , < f9322ac9f862961d7f377b87ec26c8565af7e073 (git)
Affected: 4a089668ef22c295ed4997289cc48446c849249c , < 4666197ca4f7d80cd3b0292054fe45d76be9ba04 (git)
Affected: 4a089668ef22c295ed4997289cc48446c849249c , < 95f76f51937fdfb0fc1e14cae606b1ef574a56f3 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.51 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "dateReserved": "2026-09-11T19:38:34.773Z",
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      "cve": "CVE-2026-89892",
      "id": "CVE-2026-89892",
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      "status": "final",
      "title": "kernel: media: em28xx: defer audio-only extension registration",
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      "current_release_date": "2026-10-20T00:56:11Z",
      "cve": "CVE-2026-89892",
      "id": "CVE-2026-89892",
      "initial_release_date": "2026-09-19T01:43:27Z",
      "product_status:known_affected": "176",
      "product_status:known_not_affected": "172",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-89892",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-89892.json",
      "version": "3"
    }
  }
}



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