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Linux Kernel Pinctrl NULL Pointer Dereference Vulnerability in Aspeed Pinmux

Vulnerability

A potential NULL pointer dereference vulnerability has been identified in the Linux kernel's pinctrl subsystem for Aspeed devices. The issue arises in the aspeed_pinmux_set_mux() function, where the pdesc variable could be NULL. This could lead to a NULL pointer access by dereferencing pdesc->name. The vulnerability has been addressed by moving the NULL check before the dereference.

Impact

Exploitation of this vulnerability could lead to a NULL pointer dereference, causing a crash or undefined behavior in the kernel.

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.