CVE-2021-47253

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c	Patch
https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b	Patch
https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde	Patch
https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c	Patch
https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b	Patch
https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.13:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.13:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.13:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.13:rc4::::::

History

No history.

Information

Published : 2024-05-21 15:15

Updated : 2024-12-30 18:59

NVD link : CVE-2021-47253

Mitre link : CVE-2021-47253

CVE.ORG link : CVE-2021-47253

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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