Vulnerability Database

390,645

Total vulnerabilities in the database

CVE-2026-89892

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.

  • Published: Sep 16, 2026
  • Updated: Sep 26, 2026
  • CVE: CVE-2026-89892
  • Exploit:
  • CISA KEV:

No technical information available.

No CWE or OWASP classifications available.

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