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Commit a2b45994 authored by Guchun Chen's avatar Guchun Chen Committed by Alex Deucher
Browse files

drm/amdgpu: add check to avoid array bound issue 



Sub_block_index can be passed from user level, so
add one check before accessing the array first to
prevent array index out of bound problem.

Signed-off-by: default avatarGuchun Chen <guchun.chen@amd.com>
Reviewed-by: default avatarTao Zhou <tao.zhou1@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3c0b547d

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

+3 −0
Original line number Diff line number Diff line
@@ -5978,6 +5978,9 @@ static int gfx_v9_0_ras_error_inject(struct amdgpu_device *adev, 
	if (adev->asic_type != CHIP_VEGA20)

		return -EINVAL;



	if (info->head.sub_block_index >= ARRAY_SIZE(ras_gfx_subblocks))

		return -EINVAL;



	if (!ras_gfx_subblocks[info->head.sub_block_index].name)

		return -EPERM;