Fix out of bounds write

7 years ago · 08a5fe3661
parent 9ae86a922c
commit 08a5fe3661
1 changed files with 1 additions and 1 deletions
--- a/modules/imgcodecs/src/grfmt_bmp.cpp
+++ b/modules/imgcodecs/src/grfmt_bmp.cpp
@ -118,7 +118,7 @@ bool  BmpDecoder::readHeader()

                if( m_bpp <= 8 )
                {
-                    CV_Assert(clrused <= 256);
+                    CV_Assert(clrused >= 0 && clrused <= 256);
                    memset(m_palette, 0, sizeof(m_palette));
                    m_strm.getBytes(m_palette, (clrused == 0? 1<<m_bpp : clrused)*4 );
                    iscolor = IsColorPalette( m_palette, m_bpp );