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Merge pull request #18896 from rofl0r/fixfscrash

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FS: fix crash overreading data on flash0
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Henrik Rydgård 2024-02-27 11:28:53 +07:00 • committed by GitHub
commit d24f972468
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Core/FileSystems/DirectoryFileSystem.cpp
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@ -1067,6 +1067,9 @@ size_t VFSFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size, int &usec) {
EntryMap::iterator iter = entries.find(handle); EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end()) if (iter != entries.end())
{ {
if(iter->second.seekPos + size > iter->second.size)
size = iter->second.size - iter->second.seekPos;
if(size < 0) size = 0;
size_t bytesRead = size; size_t bytesRead = size;
memcpy(pointer, iter->second.fileData + iter->second.seekPos, size); memcpy(pointer, iter->second.fileData + iter->second.seekPos, size);
iter->second.seekPos += size; iter->second.seekPos += size;