[vlc-devel] [PATCH 9/9] d3d11_fmt: detect bogus pitch

[Steve Lhomme]

Fixes #19162
---
 modules/video_chroma/d3d11_fmt.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules/video_chroma/d3d11_fmt.c b/modules/video_chroma/d3d11_fmt.c
index 0553041d7f..2d6e696c20 100644
--- a/modules/video_chroma/d3d11_fmt.c
+++ b/modules/video_chroma/d3d11_fmt.c
@@ -412,6 +412,14 @@ int AllocateTextures( vlc_object_t *obj, d3d11_device_t *d3d_dev,
                      p_chroma_desc->pixel_size * texDesc.Width );
             goto error;
         }
+        if ( mappedResource.RowPitch >=
+             2* (fmt->i_width * p_chroma_desc->p[0].w.num / p_chroma_desc->p[0].w.den * p_chroma_desc->pixel_size) )
+        {
+            msg_Err(obj, "Bogus %4.4s pitch detected. %d vs %d", (const char*)&fmt->i_chroma,
+                    mappedResource.RowPitch,
+                    (fmt->i_width * p_chroma_desc->p[0].w.num / p_chroma_desc->p[0].w.den * p_chroma_desc->pixel_size));
+            goto error;
+        }
     }
 
     if (slicedTexture)
-- 
2.14.2