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Linux Kernel Null Pointer Dereference Vulnerability in Trace Events Histogram Handling

Vulnerability

A null pointer dereference vulnerability has been identified in the Linux kernel's trace events histogram feature. The issue arises in 'trace_events_hist.c' where the 'create_hist_field' function is called recursively. This function can return a NULL value, leading to a potential null pointer dereference. The vulnerability was discovered by the Linux Verification Center using SVACE.

Impact

Exploitation of this vulnerability can lead to a null pointer dereference, causing a kernel crash.

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
4.0
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.