Strix
63.9K

CVE-2026-89892

Unknown

Last modified

CVE-2026-89892 is a vulnerability of currently unknown severity. 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.

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 4a089668ef22c295ed4997289cc48446c849249c, < 0da1e627f4fc9d0e947fdae90913042120878923; >= 4a089668ef22c295ed4997289cc48446c849249c, < f8d7e77d9c621b42a191c67a9b37bec23dc1d555; >= 4a089668ef22c295ed4997289cc48446c849249c, < 1abe9524dec0fd26e9ceb8d586034d6f68dd8273; >= 4a089668ef22c295ed4997289cc48446c849249c, < 4e11c45dfdc72ab656067b1df8fcebaf52fd4715; >= 4a089668ef22c295ed4997289cc48446c849249c, < d06067ee32620f272cfb80c7bc7c572ad4e74724; >= 4a089668ef22c295ed4997289cc48446c849249c, < f9322ac9f862961d7f377b87ec26c8565af7e073; >= 4a089668ef22c295ed4997289cc48446c849249c, < 4666197ca4f7d80cd3b0292054fe45d76be9ba04; >= 4a089668ef22c295ed4997289cc48446c849249c, < 95f76f51937fdfb0fc1e14cae606b1ef574a56f3
LinuxLinux4.17

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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.
How severe is CVE-2026-89892?
Severity scoring for CVE-2026-89892 is pending analysis.
How do I fix CVE-2026-89892?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-89892?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST