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Add additional check to make sure to not overflow buffer

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This commit is contained in:
Maschell 2022-05-13 15:43:11 +02:00
parent 482121907a
commit 90d4ccfe2a
1 changed files with 5 additions and 0 deletions
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5
wumsloader/src/module/ModuleDataFactory.cpp
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@ -131,6 +131,11 @@ std::optional<std::shared_ptr<ModuleData>> ModuleDataFactory::load(const std::st
const char *p = reader.sections[i]->get_data();
if (destination + sectionSize > (uint32_t) data.get() + text_size + data_size) {
DEBUG_FUNCTION_LINE_ERR("Tried to overflow buffer. %08X > %08X", destination + sectionSize, (uint32_t) data.get() + text_size + data_size);
OSFatal("WUMSLoader: Tried to overflow buffer");
}
if (psec->get_type() == SHT_NOBITS) {
DEBUG_FUNCTION_LINE("memset section %s %08X to 0 (%d bytes)", psec->get_name().c_str(), destination, sectionSize);
memset((void *) destination, 0, sectionSize);