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ElfObject: Ignore section headers when offset is invalid 

This happens in V-Rally 3:

(ELF) Section header offset 14853196 is larger than file size 5898828
This commit is contained in:
Connor McLaughlin 2022-04-22 21:32:33 +10:00 committed by refractionpcsx2
parent 4f44e3fc46
commit 0692517f13
1 changed files with 18 additions and 8 deletions
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26
pcsx2/Elfheader.cpp
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@ -62,17 +62,27 @@ void ElfObject::initElfHeaders(bool isPSXElf)
DevCon.WriteLn( L"Initializing Elf: %d bytes", data.GetSizeInBytes());
if ( header.e_phnum > 0 )
proghead = (ELF_PHR*)&data[header.e_phoff];
if (header.e_phnum > 0)
{
if ((header.e_phoff + sizeof(ELF_PHR)) <= data.GetSizeInBytes())
proghead = reinterpret_cast<ELF_PHR*>(&data[header.e_phoff]);
else
Console.Error("(ELF) Program header offset %u is larger than file size %u", header.e_phoff, data.GetSizeInBytes());
}
if ( header.e_shnum > 0 )
secthead = (ELF_SHR*)&data[header.e_shoff];
if (header.e_shnum > 0)
{
if ((header.e_shoff + sizeof(ELF_SHR)) <= data.GetSizeInBytes())
secthead = reinterpret_cast<ELF_SHR*>(&data[header.e_shoff]);
else
Console.Error("(ELF) Section header offset %u is larger than file size %u", header.e_shoff, data.GetSizeInBytes());
}
if ( ( header.e_shnum > 0 ) && ( header.e_shentsize != sizeof(ELF_SHR) ) )
Console.Error( "(ELF) Size of section headers is not standard" );
if ((header.e_shnum > 0) && (header.e_shentsize != sizeof(ELF_SHR)))
Console.Error("(ELF) Size of section headers is not standard");
if ( ( header.e_phnum > 0 ) && ( header.e_phentsize != sizeof(ELF_PHR) ) )
Console.Error( "(ELF) Size of program headers is not standard" );
if ((header.e_phnum > 0) && (header.e_phentsize != sizeof(ELF_PHR)))
Console.Error("(ELF) Size of program headers is not standard");
//getCRC();