CVE-2026-89894 media: cx231xx: reject geometry changes while the VBI queue is busy

In the Linux kernel, the following vulnerability has been resolved: media: cx231xx: reject geometry changes while the VBI queue is busy vidiocsfmtvidcap and vidiocsstd change the device-wide dev-width / dev-norm but only refuse the change when the video queue dev-vidq is busy. The VBI queue...

CVE-2026-89894

CVE-2026-89894 is a heap out-of-bounds write in the Linux kernel cx231xx media driver. The vulnerability arises because vidioc_s_fmt_vid_cap() and vidioc_s_std() can change the device-wide geometry (dev->width/dev->norm) while only checking whether the video queue is busy, not the VBI queue...

EUVD-2026-80494

In the Linux kernel, the following vulnerability has been resolved: media: cx231xx: reject geometry changes while the VBI queue is busy vidiocsfmtvidcap and vidiocsstd change the device-wide dev-width / dev-norm but only refuse the change when the video queue dev-vidq is busy. The VBI queue...