CVE-2026-89892
CVE CVE-2026-89892EUVD EUVD-2026-80492Published 2026-09-16T10:31:54.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 5.15.221; patch: 0; 4a089668ef22c295ed4997289cc48446c849249c <1abe9524dec0fd26e9ceb8d586034d6f68dd8273; patch: 6.6.157; patch: 7.3-rc1; patch: 6.18.51; 4a089668ef22c295ed4997289cc48446c849249c <4e11c45dfdc72ab656067b1df8fcebaf52fd4715; 4.17; patch: 7.2.5; patch: 5.10.270; patch: 6.12.110; patch: 6.1.188; 4a089668ef22c295ed4997289cc48446c849249c <f8d7e77d9c621b42a191c67a9b37bec23dc1d555; 4a089668ef22c295ed4997289cc48446c849249c <95f76f51937fdfb0fc1e14cae606b1ef574a56f3; 4a089668ef22c295ed4997289cc48446c849249c <4666197ca4f7d80cd3b0292054fe45d76be9ba04; 4a089668ef22c295ed4997289cc48446c849249c <f9322ac9f862961d7f377b87ec26c8565af7e073; 4a089668ef22c295ed4997289cc48446c849249c <0da1e627f4fc9d0e947fdae90913042120878923; 4a089668ef22c295ed4997289cc48446c849249c <d06067ee32620f272cfb80c7bc7c572ad4e74724
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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