Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-47253

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
21/05/2024
Last modified:
30/12/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amd/display: Fix potential memory leak in DMUB hw_init<br /> <br /> [Why]<br /> On resume we perform DMUB hw_init which allocates memory:<br /> dm_resume-&gt;dm_dmub_hw_init-&gt;dc_dmub_srv_create-&gt;kzalloc<br /> That results in memory leak in suspend/resume scenarios.<br /> <br /> [How]<br /> Allocate memory for the DC wrapper to DMUB only if it was not<br /> allocated before.<br /> No need to reallocate it on suspend/resume.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.10.45 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.12.12 (excluding)
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:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools