Linux Kernel 9p Fid Reference Count Leak Vulnerability

Vulnerability

A vulnerability in the Linux kernel's 9p file system implementation has been addressed. The issue involved a reference count leak of file identifiers (fids) during the atomic open operation. If the operation failed partway through, the directory fid was not properly released, leading to a leak. This vulnerability was identified while running xfstests generic test 531.

Impact

The vulnerability could lead to a reference count leak, potentially causing memory management issues.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
5.3
remediation
0.0
relevance
0.0
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.