CVE-2026-97579 media: mediatek: vcodec: bound AV1 tile-start copy to the array capacity
A missing bounds check in the Mediatek AV1 video codec driver allows out-of-bounds writes, potentially leading to memory corruption or system crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-97579?
CVE-2026-97579 is a high-severity memory corruption vulnerability in Linux, published on 25 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
media: mediatek: vcodec: bound AV1 tile-start copy to the array capacity
vdec_av1_slice_setup_tile() copies tile_cols + 1 / tile_rows + 1 entries into mi_col_starts[] / mi_row_starts[] from the bitstream tile_info. Bound the copy to the array capacity.
Which versions are affected by CVE-2026-97579?
How do I fix CVE-2026-97579?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-97579 being exploited?
There is no known exploitation of CVE-2026-97579 in the wild and no public exploit code.
Sources
Also known as AZL-110476, BELL-CVE-2026-97579, DEBIAN-CVE-2026-97579, GHSA-26pq-fcmg-wjcx, UBUNTU-CVE-2026-97579.