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Fixing an infinite loop scenario in case of memory exhaustion #1266

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Fixing an infinite loop scenario in case of memory exhaustion #1266

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9 changes: 7 additions & 2 deletions allocate.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ void CallNewHandler()

void * AlignedAllocate(size_t size)
{
unsigned int cnt = 0;
byte *p;
#if defined(CRYPTOPP_MM_MALLOC_AVAILABLE)
while ((p = (byte *)_mm_malloc(size, 16)) == NULLPTR)
Expand All @@ -51,8 +52,12 @@ void * AlignedAllocate(size_t size)
#else
while ((p = (byte *)malloc(size + 16)) == NULLPTR)
#endif
CallNewHandler();

{
if (cnt >= 10)
throw std::bad_alloc();
CallNewHandler();
cnt++;
}
#ifdef CRYPTOPP_NO_ALIGNED_ALLOC
size_t adjustment = 16-((size_t)p%16);
CRYPTOPP_ASSERT(adjustment > 0);
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