CVE-2023-53569
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedOct 4, 2025
First seenOct 4, 2025
How to fix
Update
- linux linux_kernel4.14.316, 4.19.284, 5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.12.1 ≤ v < 4.14.316, 4.15 ≤ v < 4.19.284, 4.20 ≤ v < 5.4.244, 5.5 ≤ v < 5.10.181, 5.11 ≤ v < 5.15.113, 5.16 ≤ v < 6.1.30, 6.2 ≤ v < 6.3.4, 2.6.12 | 4.14.316, 4.19.284, 5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4 |
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