Vulnerabilities > CVE-2021-47253 - Memory Leak vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential memory leak in DMUB hw_init [Why] On resume we perform DMUB hw_init which allocates memory: dm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc That results in memory leak in suspend/resume scenarios. [How] Allocate memory for the DC wrapper to DMUB only if it was not allocated before. No need to reallocate it on suspend/resume.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c
- https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c
- https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b
- https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b
- https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde
- https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde