CVE-2025-21842

MEDIUM

Linux Kernel 6.12-6.12.15, 6.13-6.13.3 - Use-After-Free in amdkfd Gang Context BO Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: amdkfd: properly free gang_ctx_bo when failed to init user queue The destructor of a gtt bo is declared as void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void **mem_obj); Which takes void** as the second parameter. GCC allows passing void* to the function because void* can be implicitly casted to any other types, so it can pass compiling. However, passing this void* parameter into the function's execution process(which expects void** and dereferencing void**) will result in errors.

Scores

CVSS v3 5.5
EPSS 0.0021
EPSS Percentile 11.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (12)
linux/Kernel 6.12.0 - 6.12.16linux
linux/Kernel 6.13.0 - 6.13.4linux
Linux/Linux < 6.12
Linux/Linux 6.12
Linux/Linux 6.12.16 - 6.12.*
Linux/Linux 6.13.4 - 6.13.*
Linux/Linux 6.14
Linux/Linux fb91065851cd5f2735348c5f3eddeeca3d7c2973 - 091a68c58c1bbd2ab7d05d1b32c1306394ec691d
Linux/Linux fb91065851cd5f2735348c5f3eddeeca3d7c2973 - a33f7f9660705fb2ecf3467b2c48965564f392ce
Linux/Linux fb91065851cd5f2735348c5f3eddeeca3d7c2973 - ae5ab1c1ae504f622cc1ff48830a9ed48428146d
... and 2 more
Published Mar 07, 2025
Tracked Since Feb 18, 2026