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Fix out of bounds access when increasing program header table

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Bo Anderson
2022-10-10 15:13:11 +01:00
parent 683e41d340
commit fc21d139a4
1 changed files with 1 additions and 1 deletions
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2
src/patchelf.cc
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@@ -689,7 +689,7 @@ void ElfFile<ElfFileParamNames>::rewriteSectionsLibrary()
/* Some sections may already be replaced so account for that */ /* Some sections may already be replaced so account for that */
unsigned int i = 1; unsigned int i = 1;
Elf_Addr pht_size = sizeof(Elf_Ehdr) + (phdrs.size() + num_notes + 1)*sizeof(Elf_Phdr); 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)))) if (not haveReplacedSection(getSectionName(shdrs.at(i))))
replaceSection(getSectionName(shdrs.at(i)), rdi(shdrs.at(i).sh_size)); replaceSection(getSectionName(shdrs.at(i)), rdi(shdrs.at(i).sh_size));
i++; i++;