diff options
Diffstat (limited to 'binutils/dwarf.c')
| -rw-r--r-- | binutils/dwarf.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/binutils/dwarf.c b/binutils/dwarf.c index 33ee41c..533f118 100644 --- a/binutils/dwarf.c +++ b/binutils/dwarf.c @@ -7738,6 +7738,12 @@ display_debug_addr (struct dwarf_section *section, return 0; } end = curr_header + length; + if (end < entry) + { + warn (_("Corrupt %s section header: length field (%lx) is too small\n"), + section->name, length); + return 0; + } SAFE_BYTE_GET_AND_INC (version, curr_header, 2, entry); if (version != 5) warn (_("Corrupt %s section: expecting version number 5 in header but found %d instead\n"), @@ -7748,9 +7754,22 @@ display_debug_addr (struct dwarf_section *section, address_size += segment_selector_size; } else - end = section->start + debug_addr_info [i + 1]->addr_base; + { + end = section->start + debug_addr_info [i + 1]->addr_base; + + if (end < entry) + { + warn (_("Corrupt %s section: address base of entry %u (%lx) is less than entry %u (%lx)\n"), + section->name, + i, debug_addr_info [i]->addr_base, + i + 1, debug_addr_info [i + 1]->addr_base); + return 0; + } + } + header = end; idx = 0; + while ((size_t) (end - entry) >= address_size) { uint64_t base = byte_get (entry, address_size); |