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CVE-2022-50534

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use last transaction's pmd->root when commit failed Recently we found a softlock up problem in dm thin pool btree look…

Published Oct 7, 2025EPSS 0.16%

Overview

CVE-2022-50534 is a medium-severity vulnerability. It was published on October 7, 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:

dm thin: Use last transaction's pmd->root when commit failed

Recently we found a softlock up problem in dm thin pool btree lookup

code due to corrupted metadata:

Kernel panic - not syncing: softlockup: hung tasks

CPU: 7 PID: 2669225 Comm: kworker/u16:3

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)

Workqueue: dm-thin do_worker [dm_thin_pool]

Call Trace:

<IRQ>

dump_stack+0x9c/0xd3

panic+0x35d/0x6b9

watchdog_timer_fn.cold+0x16/0x25

__run_hrtimer+0xa2/0x2d0

</IRQ>

RIP: 0010:__relink_lru+0x102/0x220 [dm_bufio]

__bufio_new+0x11f/0x4f0 [dm_bufio]

new_read+0xa3/0x1e0 [dm_bufio]

dm_bm_read_lock+0x33/0xd0 [dm_persistent_data]

ro_step+0x63/0x100 [dm_persistent_data]

btree_lookup_raw.constprop.0+0x44/0x220 [dm_persistent_data]

dm_btree_lookup+0x16f/0x210 [dm_persistent_data]

dm_thin_find_block+0x12c/0x210 [dm_thin_pool]

__process_bio_read_only+0xc5/0x400 [dm_thin_pool]

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-2022-50534?

CVE-2022-50534 is a medium-severity vulnerability. It was published on October 7, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50534?

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-2022-50534?

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-2022-50534?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50534 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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