Linux Kernel F2FS Left Shift Overflow Vulnerability

Vulnerability

A vulnerability in the Linux kernel's F2FS file system can lead to an overflow during a left shift operation. This issue arises because the folio index is not properly cast, allowing for potential data corruption or unexpected behavior. The vulnerability affects the stable version of the Linux kernel.

Impact

The vulnerability could cause a left shift overflow, leading to incorrect data handling or potential memory corruption.

Remediation

Users can apply the available patch by updating to the latest version of the Linux kernel. The patched version can be downloaded from the Linux kernel stable tree.

Added: Oct 28, 2025, 12:25 PM
Updated: Oct 28, 2025, 12:25 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
0.6
exploitability
5.3
remediation
7.7
relevance
0.8
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.