PT-2025-40711 · Linux · Linux Kernel

Published 2025-10-04 · Updated 2026-02-12 · CVE-2023-53569

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel's ext2 functionality related to block size validity during mount operations. Insufficient validation of the block size log stored in the superblock could lead to an overflow during shift computations, resulting in undefined behavior.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2023-53569

Affected Products

Linux Kernel

References · 22

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53569.json · Exploit
• https://git.kernel.org/stable/c/0ebfaf14150f55550cffb1148ed3920143c7a69c · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53569 · Vendor Advisory
• https://git.kernel.org/stable/c/22ab5fed07ad4b206ea910fd0132d1a0d4831584 · Patch
• https://git.kernel.org/stable/c/451b98155be5dfee05bc6e7c8b30c0be4add3f71 · Patch
• https://osv.dev/vulnerability/CVE-2023-53569 · Vendor Advisory
• https://git.kernel.org/stable/c/e6f4fb28890c1361e0db9eb1adee3fc04e7fe7f5 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53569 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53569 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53569 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53569 · Vendor Advisory
• https://git.kernel.org/stable/c/99f8a15af6c9f0653193104a9e70891f950c6001 · Patch
• https://git.kernel.org/stable/c/c2e7776843a953fd7e48895c3880c277f996193e · Patch
• https://git.kernel.org/stable/c/c4813f858e5c3e4c4659ce95385c1c400c593e1e · Patch
• https://ubuntu.com/security/CVE-2023-53569 · Vendor Advisory