Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-49972

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
18/06/2025
Last modified:
13/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> xsk: Fix corrupted packets for XDP_SHARED_UMEM<br /> <br /> Fix an issue in XDP_SHARED_UMEM mode together with aligned mode where<br /> packets are corrupted for the second and any further sockets bound to<br /> the same umem. In other words, this does not affect the first socket<br /> bound to the umem. The culprit for this bug is that the initialization<br /> of the DMA addresses for the pre-populated xsk buffer pool entries was<br /> not performed for any socket but the first one bound to the umem. Only<br /> the linear array of DMA addresses was populated. Fix this by populating<br /> the DMA addresses in the xsk buffer pool for every socket bound to the<br /> same umem.

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:*:*:*:*:*:*:*:* 5.16 (including) 5.19.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools