From 3364bf5fd00f0391ad090f547932a5c4b2068dbc Mon Sep 17 00:00:00 2001
From: Ping Gao <ping.a.gao@intel.com>
Date: Tue, 4 Jul 2017 16:09:58 +0800
Subject: [PATCH] drm/i915/gvt: Audit the command buffer address
Git-commit: 3364bf5fd00f0391ad090f547932a5c4b2068dbc
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/gvt/cmd_parser.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- 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_vg
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_shad
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;