PT-2025-18908 · Linux+1 · Linux Kernel+1

Published 2025-05-02 · Updated 2025-05-06 · CVE-2023-53144

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0-rc5

Description A bug in the Linux kernel has been resolved, related to the erofs filesystem when using LZMA compression on HIGHMEM platforms. The issue causes a kernel NULL pointer dereference due to incorrect kunmap of pages. The bug is identified in the z erofs lzma decompress function and is triggered through the z erofs decompressqueue work workqueue. The error leads to a call trace with a NULL pointer dereference.

Recommendations For Linux kernel versions prior to 6.2.0-rc5, update to a newer version to fix the issue. At the moment, there is no information about additional mitigation measures for this vulnerability.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-06042

CVE-2023-53144

Affected Products

Astra Linux

Linux Kernel

References · 22

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53144.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2023-53144 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53144 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53144 · Security Note
• https://git.kernel.org/stable/c/28aea8ae6cf212a5bf3ed962b27921e2029ad754 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53144 · Vendor Advisory
• https://git.kernel.org/stable/c/fa4056781ac067b5946c6811459e1a36842047fd · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53144 · Vendor Advisory
• https://git.kernel.org/stable/c/8f121dfb15f7b4ab345992ce96003eb63fd608f4 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53144 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53144 · Security Note
• https://bdu.fstec.ru/vul/2026-06042 · Security Note
• https://ubuntu.com/security/CVE-2023-53144 · Vendor Advisory
• https://twitter.com/CVEnew/status/1918379137925894355 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note