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authorH.J. Lu <hjl.tools@gmail.com>2003-09-25 07:10:42 +0000
committerH.J. Lu <hjl.tools@gmail.com>2003-09-25 07:10:42 +0000
commit243ef1e0a514f0be42d0d56ba8b8f467d381bd62 (patch)
tree1d884f71dc501e3f1ce4c7b96e06e03d96794a21 /bfd/elflink.c
parent8ef5dabfc3f3328ec3e23d26959438de9e4ebb28 (diff)
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2003-09-26 H.J. Lu <hongjiu.lu@intel.com>
* elflink.c (elf_link_read_relocs_from_section): Add an argument of a pointer to section. Check bad symbol index. (_bfd_elf_link_read_relocs): Modify calls to elf_link_read_relocs_from_section.
Diffstat (limited to 'bfd/elflink.c')
-rw-r--r--bfd/elflink.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 58acc14..0e06903 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -1879,6 +1879,7 @@ _bfd_elf_link_assign_sym_version (struct elf_link_hash_entry *h, void *data)
static bfd_boolean
elf_link_read_relocs_from_section (bfd *abfd,
+ asection *sec,
Elf_Internal_Shdr *shdr,
void *external_relocs,
Elf_Internal_Rela *internal_relocs)
@@ -1888,6 +1889,8 @@ elf_link_read_relocs_from_section (bfd *abfd,
const bfd_byte *erela;
const bfd_byte *erelaend;
Elf_Internal_Rela *irela;
+ Elf_Internal_Shdr *symtab_hdr;
+ size_t nsyms;
/* If there aren't any relocations, that's OK. */
if (!shdr)
@@ -1901,6 +1904,9 @@ elf_link_read_relocs_from_section (bfd *abfd,
if (bfd_bread (external_relocs, shdr->sh_size, abfd) != shdr->sh_size)
return FALSE;
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ nsyms = symtab_hdr->sh_size / symtab_hdr->sh_entsize;
+
bed = get_elf_backend_data (abfd);
/* Convert the external relocations to the internal format. */
@@ -1919,7 +1925,21 @@ elf_link_read_relocs_from_section (bfd *abfd,
irela = internal_relocs;
while (erela < erelaend)
{
+ bfd_vma r_symndx;
+
(*swap_in) (abfd, erela, irela);
+ r_symndx = ELF32_R_SYM (irela->r_info);
+ if (bed->s->arch_size == 64)
+ r_symndx >>= 24;
+ if ((size_t) r_symndx >= nsyms)
+ {
+ (*_bfd_error_handler)
+ (_("%s: bad reloc symbol index (0x%lx >= 0x%lx) for offset 0x%lx in section `%s'"),
+ bfd_archive_filename (abfd), (unsigned long) r_symndx,
+ (unsigned long) nsyms, irela->r_offset, sec->name);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
irela += bed->s->int_rels_per_ext_rel;
erela += shdr->sh_entsize;
}
@@ -1983,12 +2003,12 @@ _bfd_elf_link_read_relocs (bfd *abfd,
external_relocs = alloc1;
}
- if (!elf_link_read_relocs_from_section (abfd, rel_hdr,
+ if (!elf_link_read_relocs_from_section (abfd, o, rel_hdr,
external_relocs,
internal_relocs))
goto error_return;
if (!elf_link_read_relocs_from_section
- (abfd,
+ (abfd, o,
elf_section_data (o)->rel_hdr2,
((bfd_byte *) external_relocs) + rel_hdr->sh_size,
internal_relocs + (NUM_SHDR_ENTRIES (rel_hdr)