Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2022-48846

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: block: release rq qos structures for queue without disk blkcg_init_queue() may add rq qos structures to request queue, previous…

Published Jul 16, 2024CWE-401EPSS 0.22%

Overview

CVE-2022-48846 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:

block: release rq qos structures for queue without disk

blkcg_init_queue() may add rq qos structures to request queue, previously

blk_cleanup_queue() calls rq_qos_exit() to release them, but commit

8e141f9eb803 ("block: drain file system I/O on del_gendisk")

moves rq_qos_exit() into del_gendisk(), so memory leak is caused

because queues may not have disk, such as un-present scsi luns, nvme

admin queue, ...

Fixes the issue by adding rq_qos_exit() to blk_cleanup_queue() back.

BTW, v5.18 won't need this patch any more since we move

blkcg_init_queue()/blkcg_exit_queue() into disk allocation/release

handler, and patches have been in for-5.18/block.

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/60c2c8e2ef3a3ec79de8cbc80a06ca0c21df8c29Refgit.kernel.org/stable/c/d4ad8736ac982111bb0be8306bf19c8207f6600eRefgit.kernel.org/stable/c/daaca3522a8e67c46e39ef09c1d542e866f85f3bRefgit.kernel.org/stable/c/60c2c8e2ef3a3ec79de8cbc80a06ca0c21df8c29Refgit.kernel.org/stable/c/d4ad8736ac982111bb0be8306bf19c8207f6600eRefgit.kernel.org/stable/c/daaca3522a8e67c46e39ef09c1d542e866f85f3b

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48846?

CVE-2022-48846 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-2022-48846?

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-2022-48846?

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-2022-48846?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48846 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.

Related MEDIUM CVEs from 2022

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999