From: jsg <jsg@openbsd.org>
Date: Fri, 12 Jul 2024 03:50:23 +0000 (+0000)
Subject: drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=ba755da86eed441d27660a3370042e6771973beb;p=openbsd

drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc

From Jesse Zhang
855ae72c20310e5402b2317fc537d911e87537ef in linux-6.6.y/6.6.39
88a9a467c548d0b3c7761b4fd54a68e70f9c0944 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_vce.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_vce.c
index 6a5128bc34c..d7ffec7b8e9 100644
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_vce.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_vce.c
@@ -742,7 +742,8 @@ int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p,
 	uint32_t created = 0;
 	uint32_t allocated = 0;
 	uint32_t tmp, handle = 0;
-	uint32_t *size = &tmp;
+	uint32_t dummy = 0xffffffff;
+	uint32_t *size = &dummy;
 	unsigned int idx;
 	int i, r = 0;