tree eb43f4f033d6e5f20021f48c61d38b3692a95348
parent 3adf438f39c5b979822e816c72ca2479b88d6915
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> 1387118872 -0600
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> 1387118872 -0600

[libpng17] Handle zero-length PLTE chunk or NULL palette with png_error()

instead of png_chunk_report(), which by default issues a warning
rather than an error, leading to later reading from a NULL pointer
(png_ptr->palette) in png_do_expand_palette().