drm/i915/gvt: Audit the command buffer address
The command buffer address in context like ring buffer base address
and wa_ctx address need to be audit to make sure they are in the
valid GGTT range.
Signed-off-by: Ping Gao <ping.a.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 51241de5..713848c 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -2536,6 +2536,11 @@ static int scan_workload(struct intel_vgpu_workload *workload)
gma_head == gma_tail)
return 0;
+ if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
ret = ip_gma_set(&s, gma_head);
if (ret)
goto out;
@@ -2579,6 +2584,11 @@ static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
s.rb_va = wa_ctx->indirect_ctx.shadow_va;
s.workload = workload;
+ if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
ret = ip_gma_set(&s, gma_head);
if (ret)
goto out;