CVE-2023-53569

HIGH

Linux Kernel - Info Disclosure

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: ext2: Check block size validity during mount Check that log of block size stored in the superblock has sensible value. Otherwise the shift computing the block size can overflow leading to undefined behavior.

References (8)

[Patch] https://git.kernel.org/stable/c/0ebfaf14150f55550cffb1148ed3920143c7a69c

[Patch] https://git.kernel.org/stable/c/22ab5fed07ad4b206ea910fd0132d1a0d4831584

[Patch] https://git.kernel.org/stable/c/451b98155be5dfee05bc6e7c8b30c0be4add3f71

[Patch] https://git.kernel.org/stable/c/62aeb94433fcec80241754b70d0d1836d5926b0a

[Patch] 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://git.kernel.org/stable/c/e6f4fb28890c1361e0db9eb1adee3fc04e7fe7f5

Scores

CVSS v3 7.8

EPSS 0.0001

EPSS Percentile 1.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Status draft

Affected Products (6)

linux/linux_kernel < 4.14.316

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

Timeline

Published Oct 04, 2025

Tracked Since Feb 18, 2026