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closes https://github.com/assimp/assimp/issues/2088: fix possible out-of-bound access in fbx-lerp operaation.

pull/2091/head
Kim Kulling 2018-08-09 20:48:25 +02:00
parent 847573b9ed
commit 43be7abb70
1 changed files with 9 additions and 8 deletions
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17
code/FBXConverter.cpp
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@ -2806,16 +2806,14 @@ KeyTimeList Converter::GetKeyTimeList( const KeyFrameListList& inputs )
} }
void Converter::InterpolateKeys( aiVectorKey* valOut, const KeyTimeList& keys, const KeyFrameListList& inputs, void Converter::InterpolateKeys( aiVectorKey* valOut, const KeyTimeList& keys, const KeyFrameListList& inputs,
const aiVector3D& def_value, const aiVector3D& def_value,
double& max_time, double& max_time,
double& min_time ) double& min_time ) {
ai_assert( !keys.empty() );
{ ai_assert( nullptr != valOut );
ai_assert( keys.size() );
ai_assert( valOut );
std::vector<unsigned int> next_pos; std::vector<unsigned int> next_pos;
const size_t count = inputs.size(); const size_t count( inputs.size() );
next_pos.resize( inputs.size(), 0 ); next_pos.resize( inputs.size(), 0 );
@ -2826,6 +2824,9 @@ void Converter::InterpolateKeys( aiVectorKey* valOut, const KeyTimeList& keys, c
const KeyFrameList& kfl = inputs[ i ]; const KeyFrameList& kfl = inputs[ i ];
const size_t ksize = std::get<0>(kfl)->size(); const size_t ksize = std::get<0>(kfl)->size();
if (ksize == 0) {
continue;
}
if ( ksize > next_pos[ i ] && std::get<0>(kfl)->at( next_pos[ i ] ) == time ) { if ( ksize > next_pos[ i ] && std::get<0>(kfl)->at( next_pos[ i ] ) == time ) {
++next_pos[ i ]; ++next_pos[ i ];
} }