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Fix out of bounds access when increasing program header table #411

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merged 1 commit into from
Oct 26, 2022
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Fix out of bounds access when increasing program header table #411

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2 changes: 1 addition & 1 deletion src/patchelf.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -689,7 +689,7 @@ void ElfFile<ElfFileParamNames>::rewriteSectionsLibrary()
/* Some sections may already be replaced so account for that */
unsigned int i = 1;
Elf_Addr pht_size = sizeof(Elf_Ehdr) + (phdrs.size() + num_notes + 1)*sizeof(Elf_Phdr);
while( rdi(shdrs.at(i).sh_offset) <= pht_size && i < rdi(hdr()->e_shnum) ) {
while( i < rdi(hdr()->e_shnum) && rdi(shdrs.at(i).sh_offset) <= pht_size ) {
if (not haveReplacedSection(getSectionName(shdrs.at(i))))
replaceSection(getSectionName(shdrs.at(i)), rdi(shdrs.at(i).sh_size));
i++;
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