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CVE-2022-48664

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix hang during unmount when stopping a space reclaim worker Often when running generic/562 from fstests we can hang dur…

Published Apr 28, 2024EPSS 0.24%

Overview

CVE-2022-48664 is a medium-severity vulnerability. It was published on April 28, 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:

btrfs: fix hang during unmount when stopping a space reclaim worker

Often when running generic/562 from fstests we can hang during unmount,

resulting in a trace like this:

Sep 07 11:52:00 debian9 unknown: run fstests generic/562 at 2022-09-07 11:52:00

Sep 07 11:55:32 debian9 kernel: INFO: task umount:49438 blocked for more than 120 seconds.

Sep 07 11:55:32 debian9 kernel: Not tainted 6.0.0-rc2-btrfs-next-122 #1

Sep 07 11:55:32 debian9 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

Sep 07 11:55:32 debian9 kernel: task:umount state:D stack: 0 pid:49438 ppid: 25683 flags:0x00004000

Sep 07 11:55:32 debian9 kernel: Call Trace:

Sep 07 11:55:32 debian9 kernel: <TASK>

Sep 07 11:55:32 debian9 kernel: __schedule+0x3c8/0xec0

Sep 07 11:55:32 debian9 kernel: ? rcu_read_lock_sched_held+0x12/0x70

Sep 07 11:55:32 debian9 kernel: schedule+0x5d/0xf0

Sep 07

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/6ac5b52e3f352f9cb270c89e6e1d4dadb564ddb8Refgit.kernel.org/stable/c/a362bb864b8db4861977d00bd2c3222503ccc34bRefgit.kernel.org/stable/c/c338bea1fec5504290dc0acf026c9e7dba25004bRefgit.kernel.org/stable/c/d8a76a2e514fbbb315a6dfff2d342de2de833994Refgit.kernel.org/stable/c/6ac5b52e3f352f9cb270c89e6e1d4dadb564ddb8Refgit.kernel.org/stable/c/a362bb864b8db4861977d00bd2c3222503ccc34bRefgit.kernel.org/stable/c/c338bea1fec5504290dc0acf026c9e7dba25004bRefgit.kernel.org/stable/c/d8a76a2e514fbbb315a6dfff2d342de2de833994

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48664?

CVE-2022-48664 is a medium-severity vulnerability. It was published on April 28, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48664?

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-2022-48664?

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-2022-48664?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48664 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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