CVE-2026-43222 media: verisilicon: AV1: Fix tile info buffer size
A buffer overflow in the Verisilicon AV1 driver allows attackers to write to unallocated memory, potentially causing crashes or code execution.
- 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-2026-43222?
CVE-2026-43222 is a high-severity memory corruption vulnerability in Linux kernel, published on 6 May 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: verisilicon: AV1: Fix tile info buffer size
Each tile info is composed of: row_sb, col_sb, start_pos and end_pos (4 bytes each). So the total required memory is AV1_MAX_TILES * 16 bytes. Use the correct #define to allocate the buffer and avoid writing tile info in non-allocated memory.
Which versions are affected by CVE-2026-43222?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43222?
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-2026-43222 being exploited?
There is no known exploitation of CVE-2026-43222 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43222, DEBIAN-CVE-2026-43222, GHSA-j457-vjxp-xvjj, ROOT-OS-UBUNTU-2404-CVE-2026-43222, UBUNTU-CVE-2026-43222.