CVE-2023-53569

ext2: Check block size validity during mount

published October 4, 2025

CVSS
—
EPSS
0%
Percentile
4.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00154 · 4.2th percentile
Published
2025-10-04T15:17Z
EPSS history
Timeline
  • 04 OCT 15:17Z
    ext2: Check block size validity during mount
    cvelistv5