CVE-2026-97579
kernel: media: mediatek: vcodec: bound AV1 tile-start copy to the array capacity
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's MediaTek video codec driver. An out-of-bounds write occurs during AV1 video decoding because tile information from the video stream is copied into fixed-size internal memory without proper bounds checking. A local user could exploit this flaw by submitting specially crafted video data, causing memory corruption that can lead to a system crash and Denial of Service (DoS) or potentially privilege escalation.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-787 · Out-of-bounds Write