FreeChainXenon/binutils-gdb
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Bug 23142, SIGSEGV in is_strip_section

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PR 23142
	* objcopy.c (group_signature): Don't accept groups that use a
	symbol table other than the one we've read.
This commit is contained in:
Alan Modra 2018-05-07 22:41:47 +09:30
parent 7bd8862c3a
commit ce4ec1a9b6
2 changed files with 10 additions and 5 deletions
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9
binutils/objcopy.c
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@ -1211,14 +1211,13 @@ group_signature (asection *group)
return NULL;
ghdr = &elf_section_data (group)->this_hdr;
if (ghdr->sh_link < elf_numsections (abfd))
if (ghdr->sh_link == elf_onesymtab (abfd))
{
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
Elf_Internal_Shdr *symhdr = &elf_symtab_hdr (abfd);
if (symhdr->sh_type == SHT_SYMTAB
&& ghdr->sh_info > 0
&& ghdr->sh_info < (symhdr->sh_size / bed->s->sizeof_sym))
if (ghdr->sh_info > 0
&& ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
return isympp[ghdr->sh_info - 1];
}
return NULL;