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Resolve #20746 by checking addresses harshly in MIPSAnalyst

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By fixing up badly aligned addresses in HLESubscriber.cpp.

This should help eliminate any bad usage within PPSSPP itself, while
also keeping existing websocket code working.

Additionally, this makes some end addresses exclusive instead of
inclusive, which simplifies address math.
This commit is contained in:
Henrik Rydgård
2025-09-03 20:32:19 +02:00
parent 16eddfc1a1
commit f2df336f79
4 changed files with 39 additions and 15 deletions
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Core/HLE/sceKernelModule.cpp
+2 -2
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@@ -1352,11 +1352,11 @@ static PSPModule *__KernelLoadELFFromPtr(const u8 *ptr, size_t elfSize, u32 load
if (Memory::IsValid4AlignedRange(scanStart, scanEnd - scanStart)) {
// Skip the exports and imports sections, they're not code.
if (scanEnd >= std::min(modinfo->libent, modinfo->libstub)) {
insertSymbols = MIPSAnalyst::ScanForFunctions(scanStart, std::min(modinfo->libent, modinfo->libstub) - 4, insertSymbols);
insertSymbols = MIPSAnalyst::ScanForFunctions(scanStart, std::min(modinfo->libent, modinfo->libstub), insertSymbols);
scanStart = std::min(modinfo->libentend, modinfo->libstubend);
}
if (scanEnd >= std::max(modinfo->libent, modinfo->libstub)) {
insertSymbols = MIPSAnalyst::ScanForFunctions(scanStart, std::max(modinfo->libent, modinfo->libstub) - 4, insertSymbols);
insertSymbols = MIPSAnalyst::ScanForFunctions(scanStart, std::max(modinfo->libent, modinfo->libstub), insertSymbols);
scanStart = std::max(modinfo->libentend, modinfo->libstubend);
}
insertSymbols = MIPSAnalyst::ScanForFunctions(scanStart, scanEnd, insertSymbols);