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ole32: StorageImpl_GetROBigBlock can return NULL so check for NULL before doing a memcpy.

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James Hawkins 2006-04-28 20:16:41 -05:00 committed by Alexandre Julliard
parent 72e279bd36
commit 2b5963f8e2
1 changed files with 2 additions and 0 deletions
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dlls/ole32/storage32.c
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@ -4493,6 +4493,8 @@ BOOL BlockChainStream_ReadAt(BlockChainStream* This,
*/ */
bigBlockBuffer = bigBlockBuffer =
StorageImpl_GetROBigBlock(This->parentStorage, blockIndex); StorageImpl_GetROBigBlock(This->parentStorage, blockIndex);
if (!bigBlockBuffer)
return FALSE;
memcpy(bufferWalker, bigBlockBuffer + offsetInBlock, bytesToReadInBuffer); memcpy(bufferWalker, bigBlockBuffer + offsetInBlock, bytesToReadInBuffer);