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CVE-2023-53144

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms As the call trace shown, the root cause is kunmap incorrect pages:…

Published May 2, 2025CWE-476EPSS 0.18%

Overview

CVE-2023-53144 is a medium-severity vulnerability. It was published on May 2, 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:

erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms

As the call trace shown, the root cause is kunmap incorrect pages:

BUG: kernel NULL pointer dereference, address: 00000000

CPU: 1 PID: 40 Comm: kworker/u5:0 Not tainted 6.2.0-rc5 #4

Workqueue: erofs_worker z_erofs_decompressqueue_work

EIP: z_erofs_lzma_decompress+0x34b/0x8ac

z_erofs_decompress+0x12/0x14

z_erofs_decompress_queue+0x7e7/0xb1c

z_erofs_decompressqueue_work+0x32/0x60

process_one_work+0x24b/0x4d8

? process_one_work+0x1a4/0x4d8

worker_thread+0x14c/0x3fc

kthread+0xe6/0x10c

? rescuer_thread+0x358/0x358

? kthread_complete_and_exit+0x18/0x18

ret_from_fork+0x1c/0x28

---[ end trace 0000000000000000 ]---

The bug is trivial and should be fixed now. It has no impact on

!HIGHMEM platforms.

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-2023-53144?

CVE-2023-53144 is a medium-severity vulnerability. It was published on May 2, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53144?

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-2023-53144?

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-2023-53144?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53144 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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