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author | Nick Clifton <nickc@redhat.com> | 2015-02-10 14:11:00 +0000 |
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committer | Nick Clifton <nickc@redhat.com> | 2015-02-10 14:11:00 +0000 |
commit | 77ef86547510cee3a2bff27bea9f19f0b2715bae (patch) | |
tree | cf37b63c2505ce132ac49d286340751c4caebe7f /bfd/versados.c | |
parent | b677c4562dea82ffaf413e7e9311ca4b9c1c6ec6 (diff) | |
download | gdb-77ef86547510cee3a2bff27bea9f19f0b2715bae.zip gdb-77ef86547510cee3a2bff27bea9f19f0b2715bae.tar.gz gdb-77ef86547510cee3a2bff27bea9f19f0b2715bae.tar.bz2 |
Fix memory access violations triggered by running objdump compiled with out-of-bounds sanitization checking.
PR binutils/17512
* dwarf.c (eh_addr_size): Use an unsigned type.
(size_of_encoded_value): Return an unsigned type.
(read_leb128): Break if the shift becomes too big.
(process_extended_line_op): Do not read the address if the length
is too long.
(read_cie): Warn and fail if the pointer size or segment size are
too big.
* dwarf.h (DWARF2_External_LineInfo): Delete unused and incorrect
structure definition.
(DWARF2_External_PubNames): Likewise.
(DWARF2_External_CompUnit): Likewise.
(DWARF2_External_ARange): Likewise.
(DWARF2_Internal_LineInfo): Use dwarf_vma type for
li_prologue_length.
(eh_addr_size): Update prototype.
* coffcode.h (styp_to_sec_flags): Use an unsigned long type to
hold the flag bits.
* peXXigen.c (pe_print_reloc): Use unsigned types to hold the
size and number of relocs.
(pe_print_debugdata): Use a 32-bit aligned buffer to store the
codeview record.
* versados.c (process_otr): Check the esdid value before using it
to access the EDATA.
Diffstat (limited to 'bfd/versados.c')
-rw-r--r-- | bfd/versados.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/bfd/versados.c b/bfd/versados.c index 2540314..93a90a7 100644 --- a/bfd/versados.c +++ b/bfd/versados.c @@ -373,7 +373,7 @@ process_otr (bfd *abfd, struct ext_otr *otr, int pass) | (otr->map[2] << 8) | (otr->map[3] << 0); - struct esdid *esdid = &EDATA (abfd, otr->esdid - 1); + struct esdid *esdid; unsigned char *contents; bfd_boolean need_contents = FALSE; unsigned int dst_idx; @@ -382,6 +382,7 @@ process_otr (bfd *abfd, struct ext_otr *otr, int pass) if (otr->esdid == 0) return; + esdid = &EDATA (abfd, otr->esdid - 1); contents = esdid->contents; dst_idx = esdid->pc; |