Menu

Star on GitHub · 3.4k

CVE-2022-48901

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not start relocation until in progress drops are done We hit a bug with a recovering relocation on mount for one of o…

Published Aug 22, 2024EPSS 0.21%

Overview

CVE-2022-48901 is a medium-severity vulnerability. It was published on August 22, 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: do not start relocation until in progress drops are done

We hit a bug with a recovering relocation on mount for one of our file

systems in production. I reproduced this locally by injecting errors

into snapshot delete with balance running at the same time. This

presented as an error while looking up an extent item

WARNING: CPU: 5 PID: 1501 at fs/btrfs/extent-tree.c:866 lookup_inline_extent_backref+0x647/0x680

CPU: 5 PID: 1501 Comm: btrfs-balance Not tainted 5.16.0-rc8+ #8

RIP: 0010:lookup_inline_extent_backref+0x647/0x680

RSP: 0018:ffffae0a023ab960 EFLAGS: 00010202

RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000

RDX: 0000000000000000 RSI: 000000000000000c RDI: 0000000000000000

RBP: ffff943fd2a39b60 R08: 0000000000000000 R09: 0000000000000001

R10: 0001434088152de0 R11: 0000000000000000 R12: 0000000001d05000

R13: ffff943fd2a39b60 R14: ffff943fdb96f2a0 R15: ffff9442fc923000

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.

Frequently asked questions

What is CVE-2022-48901?

CVE-2022-48901 is a medium-severity vulnerability. It was published on August 22, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48901?

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-2022-48901?

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-2022-48901?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48901 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
Watch the demo →