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LibGfx: skip zero-width frames

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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27913
and https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27873
This commit is contained in:
Nico Weber 2020-11-29 14:01:16 -05:00 committed by Andreas Kling
parent 2e4832c3da
commit 86cec77eb5
Notes: sideshowbarker 2024-07-19 01:11:44 +09:00 
Author: https://github.com/nico
Commit: https://github.com/SerenityOS/serenity/commit/86cec77eb59
Pull-request: https://github.com/SerenityOS/serenity/pull/4244
1 changed files with 4 additions and 3 deletions
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7
Libraries/LibGfx/GIFLoader.cpp
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@ -354,12 +354,13 @@ static bool decode_frame(GIFLoadingContext& context, size_t frame_index)
if (code.value() == clear_code) {
decoder.reset();
continue;
} else if (code.value() == end_of_information_code) {
break;
}
if (code.value() == end_of_information_code)
break;
if (!image.width)
continue;
auto colors = decoder.get_output();
for (const auto& color : colors) {
auto c = color_map[color];