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Linux Kernel Virtio GPU NULL Pointer Dereference Vulnerability

Vulnerability

A vulnerability in the Linux kernel's virtio GPU driver can lead to a NULL pointer dereference. This issue arises in the 'virtio_gpu_array_put_free()' function, which can be called with a NULL 'objs' parameter if the 'virtio_gpu_object_shmem_init()' function fails. Such a failure could occur due to fault injection, as reported by syzbot.

Impact

Exploitation of this vulnerability can cause a kernel panic by dereferencing a NULL pointer, leading to a denial of service.

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.