diff options
| author | Alan Modra <amodra@gmail.com> | 2021-09-06 22:23:15 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2021-09-07 10:41:29 +0930 |
| commit | b54509b84488023954f6974229b24fe6c993742b (patch) | |
| tree | abcbcdba27d2d4f5ddf767ea0c073609af32b01a /bfd/elf32-ppc.c | |
| parent | b4d9dd5c3576a8d6b1a59b11f8af1a3a2abd5fdc (diff) | |
| download | gdb-b54509b84488023954f6974229b24fe6c993742b.zip gdb-b54509b84488023954f6974229b24fe6c993742b.tar.gz gdb-b54509b84488023954f6974229b24fe6c993742b.tar.bz2 | |
PR28307, segfault in ppc64_elf_toc64_reloc
Adds missing bfd_reloc_offset_in_range checks to various relocation
special_functions.
PR 28307
* elf32-ppc.c (ppc_elf_addr16_ha_reloc): Range check reloc offset.
* elf64-ppc.c (ppc64_elf_ha_reloc, ppc64_elf_brtaken_reloc): Likewise.
(ppc64_elf_toc64_reloc, ppc64_elf_prefix_reloc): Likewise.
Diffstat (limited to 'bfd/elf32-ppc.c')
| -rw-r--r-- | bfd/elf32-ppc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index 93fbadf..dd45da9 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -959,6 +959,10 @@ ppc_elf_addr16_ha_reloc (bfd *abfd, value >>= 16; octets = reloc_entry->address * OCTETS_PER_BYTE (abfd, input_section); + if (!bfd_reloc_offset_in_range (reloc_entry->howto, abfd, + input_section, octets)) + return bfd_reloc_outofrange; + insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); insn &= ~0x1fffc1; insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |