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CVE-2022-49994

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem The vmemmap pages is marked by kmemleak when allocated from…

Published Jun 18, 2025CWE-401EPSS 0.24%

Overview

CVE-2022-49994 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem

The vmemmap pages is marked by kmemleak when allocated from memblock.

Remove it from kmemleak when freeing the page. Otherwise, when we reuse

the page, kmemleak may report such an error and then stop working.

kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing)

kmemleak: Kernel memory leak detector disabled

kmemleak: Object 0xffff98fb6be00000 (size 335544320):

kmemleak: comm "swapper", pid 0, jiffies 4294892296

kmemleak: min_count = 0

kmemleak: count = 0

kmemleak: flags = 0x1

kmemleak: checksum = 0

kmemleak: backtrace:

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/16a12ee619e39e8112f61b603255c16b73b6264bRefgit.kernel.org/stable/c/9ae15c4ba2be1e5a62503b6d873e84beb5fcbb5aRefgit.kernel.org/stable/c/dd0ff4d12dd284c334f7e9b07f8f335af856ac78

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49994?

CVE-2022-49994 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49994?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49994?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49994?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49994 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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