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LibElf+readelf: Parse ELFs with no program headers correctly

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This simply fixes a check which assumed the program header count was
always non zero.
This commit is contained in:
Idan Horowitz 2021-03-29 15:14:41 +03:00 • committed by Andreas Kling
parent ba0df27653
commit eab151c994
Notes: sideshowbarker 2024-07-18 20:58:14 +09:00
2 changed files with 21 additions and 17 deletions
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2
Userland/Libraries/LibELF/Validation.cpp
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@ -95,7 +95,7 @@ bool validate_elf_header(const Elf32_Ehdr& elf_header, size_t file_size, bool ve
return false;
}
if (elf_header.e_phoff < elf_header.e_ehsize || (elf_header.e_shnum != SHN_UNDEF && elf_header.e_shoff < elf_header.e_ehsize)) {
if ((elf_header.e_phnum != 0 && elf_header.e_phoff < elf_header.e_ehsize) || (elf_header.e_shnum != SHN_UNDEF && elf_header.e_shoff < elf_header.e_ehsize)) {
if (verbose) {
dbgln("SHENANIGANS! program header offset ({}) or section header offset ({}) overlap with ELF header!",
elf_header.e_phoff, elf_header.e_shoff);