CVE-2023-52921 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()

Since the gang_size check is outside of chunk parsing loop we need to reset i before we free the chunk data.

Suggested by Ye Zhang (@VAR10CK) of Baidu Security.

Reference

https://git.kernel.org/stable/c/9a2393af1f35d1975204fc00035c64a1c792b278 https://git.kernel.org/stable/c/e08e9dd09809b16f8f8cee8c466841b33d24ed96 https://git.kernel.org/stable/c/90e065677e0362a777b9db97ea21d43a39211399