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VULNERABILITIES

CVE-2021-47253 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c kernel.orgPatch
https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b kernel.orgPatch
https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde kernel.orgPatch
https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c CVEPatch
https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b CVEPatch

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-401Missing Release of Memory after Effective Lifetime[email protected]

Affected Products

ProductVersions
linux linux kernel
< 5.10.45
>= 5.11, < 5.12.12
5.13 rc1
5.13 rc2
5.13 rc3

CPE

  • 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:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-47253
NVD Published Date:
May 21, 2024
NVD Last Modified:
Aug 11, 2026
Source:
kernel.org