imgcodecs(sunras): avoid undefined shift

backporting of commit: f2803aba07
6 years ago · c4ec46c195
parent 69ff7a76d6
commit c4ec46c195
1 changed files with 1 additions and 1 deletions
--- a/modules/imgcodecs/src/grfmt_sunras.cpp
+++ b/modules/imgcodecs/src/grfmt_sunras.cpp
@ -90,7 +90,7 @@ bool  SunRasterDecoder::readHeader()
        m_width  = m_strm.getDWord();
        m_height = m_strm.getDWord();
        m_bpp    = m_strm.getDWord();
-        int palSize = 3*(1 << m_bpp);
+        int palSize = (m_bpp > 0 && m_bpp <= 8) ? (3*(1 << m_bpp)) : 0;

        m_strm.skip( 4 );
        m_encoding = (SunRasType)m_strm.getDWord();