From: Ma Jun <Jun.Ma2@amd.com>
Date: Sun, 6 Nov 2022 12:34:27 +0000 (+0800)
Subject: drm/amdkfd: Fix the memory overrun
X-Git-Tag: v6.6.17~5843^2~17^2~102
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4cc16d64b6cdb179a26fb389cae9dce788e88f5d;p=platform%2Fkernel%2Flinux-rpi.git

drm/amdkfd: Fix the memory overrun

Fix the memory overrun issue caused by wrong array size.

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1527133 ("Memory - corruptions")
Fixes: c0cc999f3c32e6 ("drm/amdkfd: Fix the warning of array-index-out-of-bounds")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
index 267dd69..af01ba0 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -1111,7 +1111,7 @@ static int kfd_parse_subtype_cache(struct crat_subtype_cache *cache,
 			props->cache_latency = cache->cache_latency;
 
 			memcpy(props->sibling_map, cache->sibling_map,
-					sizeof(props->sibling_map));
+					CRAT_SIBLINGMAP_SIZE);
 
 			/* set the sibling_map_size as 32 for CRAT from ACPI */
 			props->sibling_map_size = CRAT_SIBLINGMAP_SIZE;