[PATCH 2/4] windowscodecs: Fix buffer overflow when generating a palette.

[Akihiro Sagawa]

This typically happens when loading 16-bpp color-keyed grayscale PNG
image via GDIPlus.

Signed-off-by: Akihiro Sagawa <sagawa.aki at gmail.com>
---
 dlls/windowscodecs/pngformat.c       |  2 +-
 dlls/windowscodecs/tests/pngformat.c | 68 ++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 1 deletion(-)

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