CVE-2026-89898: media: cec: extron-da-hd-4k-plus: add sanity check
Published Sep 16, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
media: cec: extron-da-hd-4k-plus: add sanity check
Add check to prevent overflowing msg.msg[] in case the incoming data is malformed.
Event History
Sep 16, 2026
CVE Published
via MITRE·10:31 AM
Data Sourced
via MITRE·10:31 AM
Description
Frequently Asked Questions
1
What would an attacker need to control to trigger this issue?
They would need to cause the driver to process malformed incoming data. The malformed input can otherwise overflow the driver's msg.msg[] buffer.
2
How can I identify a fix when kernel version information is unavailable?
The provided stable-kernel references identify fixes by commit: 00c13b4ab481a09d915d099815cff1b10926ddd9, 673611cc2ab9769929644ce879f7ea34932a3011, and 7ad2fec276946a0dedfa54eb26fc38c4fc6a6034. Compare your kernel source or vendor patch set against those commits.