Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-46710

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
13/09/2024
Last modified:
03/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/vmwgfx: Prevent unmapping active read buffers<br /> <br /> The kms paths keep a persistent map active to read and compare the cursor<br /> buffer. These maps can race with each other in simple scenario where:<br /> a) buffer "a" mapped for update<br /> b) buffer "a" mapped for compare<br /> c) do the compare<br /> d) unmap "a" for compare<br /> e) update the cursor<br /> f) unmap "a" for update<br /> At step "e" the buffer has been unmapped and the read contents is bogus.<br /> <br /> Prevent unmapping of active read buffers by simply keeping a count of<br /> how many paths have currently active maps and unmap only when the count<br /> reaches 0.

Impact

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

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
4.70
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.19 (including) 6.10.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools