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Linux Kernel Btrfs Delayed Reference Type Handling Vulnerability

Vulnerability

A vulnerability in the Linux kernel's Btrfs file system has been addressed. The issue arose in the function 'run_one_delayed_ref()', where the code improperly used 'BUG()' to handle unexpected delayed reference types. Instead of crashing the kernel, the function can now return an error and log a message, improving stability and error handling.

Impact

The vulnerability could lead to a kernel panic by improperly handling unexpected delayed reference types, causing the system to crash.

Added: May 8, 2026, 4:10 PM
Updated: May 8, 2026, 4:10 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
4.0
remediation
7.7
relevance
7.8
threat
3.2
urgency
2.9
incentive
0.0

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