CVE-2026-89892 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20507192
- published5 Oct 2026
- disclosed16 Sept 2026
Introduced: 16 Sep 2026
NewCVE-2026-89892 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-89892
- https://git.kernel.org/stable/c/0da1e627f4fc9d0e947fdae90913042120878923
- https://git.kernel.org/stable/c/1abe9524dec0fd26e9ceb8d586034d6f68dd8273
- https://git.kernel.org/stable/c/4666197ca4f7d80cd3b0292054fe45d76be9ba04
- https://git.kernel.org/stable/c/4e11c45dfdc72ab656067b1df8fcebaf52fd4715
- https://git.kernel.org/stable/c/95f76f51937fdfb0fc1e14cae606b1ef574a56f3
- https://git.kernel.org/stable/c/d06067ee32620f272cfb80c7bc7c572ad4e74724
- https://git.kernel.org/stable/c/f8d7e77d9c621b42a191c67a9b37bec23dc1d555
- https://git.kernel.org/stable/c/f9322ac9f862961d7f377b87ec26c8565af7e073