tree 80fdec01d92eea80c37209661a93e50bbef2d4a6
parent f7c548924420934a9b84c31235806570d86a354a
author DRC <information@libjpeg-turbo.org> 1605727506 -0600
committer DRC <information@libjpeg-turbo.org> 1605728027 -0600

jpeg_skip_scanlines(): Avoid NULL + 0 UBSan error

This error occurs at the call to (*cinfo->cconvert->color_convert)() in
sep_upsample() whenever cinfo->upsample->need_context_rows == TRUE
(i.e. whenever h2v2 or h1v2 fancy upsampling is used.)  The error is
innocuous, since (*cinfo->cconvert->color_convert)() points to a dummy
function (noop_convert()) in that case.

Fixes #470