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CVE-2022-48800

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mm: vmscan: remove deadlock due to throttling failing to make progress A soft lockup bug in kcompactd was reported in a private…

Published Jul 16, 2024CWE-667EPSS 0.16%

Overview

CVE-2022-48800 is a medium-severity vulnerability. It was published on July 16, 2024 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:

mm: vmscan: remove deadlock due to throttling failing to make progress

A soft lockup bug in kcompactd was reported in a private bugzilla with

the following visible in dmesg;

watchdog: BUG: soft lockup - CPU#33 stuck for 26s! [kcompactd0:479]

watchdog: BUG: soft lockup - CPU#33 stuck for 52s! [kcompactd0:479]

watchdog: BUG: soft lockup - CPU#33 stuck for 78s! [kcompactd0:479]

watchdog: BUG: soft lockup - CPU#33 stuck for 104s! [kcompactd0:479]

The machine had 256G of RAM with no swap and an earlier failed

allocation indicated that node 0 where kcompactd was run was potentially

unreclaimable;

Node 0 active_anon:29355112kB inactive_anon:2913528kB active_file:0kB

inactive_file:0kB unevictable:64kB isolated(anon):0kB isolated(file):0kB

mapped:8kB dirty:0kB writeback:0kB shmem:26780kB shmem_thp:

0kB shmem_pmdmapped: 0kB anon_thp: 23480320kB writeback_tmp:0kB

kernel_stack:2272kB pagetables:24500

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/3980cff6349687f73d5109f156f23cb261c24164Refgit.kernel.org/stable/c/b485c6f1f9f54b81443efda5f3d8a5036ba2cd91Refgit.kernel.org/stable/c/3980cff6349687f73d5109f156f23cb261c24164Refgit.kernel.org/stable/c/b485c6f1f9f54b81443efda5f3d8a5036ba2cd91

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48800?

CVE-2022-48800 is a medium-severity vulnerability. It was published on July 16, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48800?

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-2022-48800?

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-2022-48800?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48800 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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