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Unrated severityNVD Advisory· Published Feb 26, 2025· Updated Oct 1, 2025

drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()

CVE-2021-47657

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()

If virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it happened in the bug report by syzbot), virtio_gpu_array_put_free() could be called with objs equal to NULL.

Ensure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise return from the function.

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85

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