CVE-2021-47253
AMD Display Memory Leak Vulnerability
Description
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.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 30, 2024, 6:59 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47253.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47253 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47253 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Dec. 30, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.45 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.12 *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:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c No Types Assigned https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c Patch Changed Reference Type https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c No Types Assigned https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c Patch Changed Reference Type https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b No Types Assigned https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b Patch Changed Reference Type https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b No Types Assigned https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b Patch Changed Reference Type https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde No Types Assigned https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde Patch Changed Reference Type https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde No Types Assigned https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c Added Reference https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b Added Reference https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description 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. Added Reference kernel.org https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47253 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47253
weaknesses.