What is CVE-2022-49972?

CVE-2022-49972 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.16 onward and patched in 5.19.8 and 6.0. CVE-2022-49972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49972?

CVE-2022-49972 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-49972?

Yes, CVE-2022-49972 has been patched. Fixed versions include 5.19.8 and 6.0. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49972 actively exploited?

CVE-2022-49972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49972

Medium

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.

Package Linux Kernel

Published 2025-06-18

Last modified 2025-11-13

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.16 and later are affected. Fixed in 5.19.8, 6.0 and their respective stable series.

Affected from

≥ 5.16

Fixed in

✓ 5.19.8 5.19.x ✓ 6.0

References

The following references provide additional information about CVE-2022-49972 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cd
Patch
Kernel patch commit
https://git.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56
Patch

Details

CVE ID CVE-2022-49972

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-06-18

Modified 2025-11-13

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49972?

CVE-2022-49972 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.16 onward and has been patched in 5.19.8 and 6.0. CVE-2022-49972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49972?

CVE-2022-49972 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-49972?

Yes — CVE-2022-49972 has been patched. Fixed versions include 5.19.8 and 6.0. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49972 actively exploited?

No — CVE-2022-49972 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.