diff options
| -rw-r--r-- | bfd/dwarf2.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c index 95f4570..0cd8152 100644 --- a/bfd/dwarf2.c +++ b/bfd/dwarf2.c @@ -4831,16 +4831,19 @@ find_debug_info (bfd *abfd, const struct dwarf_debug_section *debug_sections, { look = debug_sections[debug_info].uncompressed_name; msec = bfd_get_section_by_name (abfd, look); - if (msec != NULL) + /* Testing SEC_HAS_CONTENTS is an anti-fuzzer measure. Of + course debug sections always have contents. */ + if (msec != NULL && (msec->flags & SEC_HAS_CONTENTS) != 0) return msec; look = debug_sections[debug_info].compressed_name; msec = bfd_get_section_by_name (abfd, look); - if (msec != NULL) + if (msec != NULL && (msec->flags & SEC_HAS_CONTENTS) != 0) return msec; for (msec = abfd->sections; msec != NULL; msec = msec->next) - if (startswith (msec->name, GNU_LINKONCE_INFO)) + if ((msec->flags & SEC_HAS_CONTENTS) != 0 + && startswith (msec->name, GNU_LINKONCE_INFO)) return msec; return NULL; @@ -4848,6 +4851,9 @@ find_debug_info (bfd *abfd, const struct dwarf_debug_section *debug_sections, for (msec = after_sec->next; msec != NULL; msec = msec->next) { + if ((msec->flags & SEC_HAS_CONTENTS) == 0) + continue; + look = debug_sections[debug_info].uncompressed_name; if (strcmp (msec->name, look) == 0) return msec; |