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Linux Kernel Realtek Headset Codec Driver NULL Pointer Dereference Vulnerability

Vulnerability

A vulnerability in the Linux kernel's Realtek headset codec drivers can lead to NULL pointer dereferences during driver bind/unbind tests. The issue arises in the rt700, rt711, and rt711-sdca codecs, which fail to check if the card is instantiated before performing jack detection. This oversight can cause NULL dereferences, particularly in driver binding and unbinding scenarios.

Impact

Exploitation of this vulnerability can cause a NULL pointer dereference, leading to a crash of the affected component or system.

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.