CVE-2022-49972

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

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cd	Patch
https://git.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	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::::::

History

13 Nov 2025, 21:23

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
First Time		Linux linux Kernel Linux
CWE		NVD-CWE-noinfo
References	~~() https://git.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cd -~~	() https://git.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cd - Patch
References	~~() https://git.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56 -~~	() https://git.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56 - Patch
CPE		cpe:2.3:o:linux:linux_kernel:6.0:rc1:::::: cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.0:rc2:::::: cpe:2.3:o:linux:linux_kernel:6.0:rc3::::::

Information

Published : 2025-06-18 11:15

Updated : 2025-11-13 21:23

NVD link : CVE-2022-49972

Mitre link : CVE-2022-49972

CVE.ORG link : CVE-2022-49972

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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