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Linux Kernel vDPA User NULL Pointer Dereference Vulnerability

Vulnerability

A NULL pointer dereference vulnerability has been identified in the Linux kernel's vDPA user driver. This issue arises when the control device's 'drvdata' is absent, leading to a NULL pointer dereference while accessing the 'msg_timeout' attribute through sysfs. The vulnerability has been resolved by eliminating the unnecessary attribute from the control device.

Impact

Exploitation of this vulnerability leads to a kernel NULL pointer dereference, causing a 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.