diff options
| -rw-r--r-- | binutils/ChangeLog | 6 | ||||
| -rw-r--r-- | binutils/dwarf.c | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 9a1fd5d..a260313 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,9 @@ +2021-04-27 Nick Clifton <nickc@redhat.com> + + PR 27779 + * dwarf.c (parse_gnu_debuglink): Reject empty names. + (parse_gnu_debugaltlink): Likewise. + 2021-04-22 Clément Chigot <clement.chigot@atos.net> * od-xcoff.c (dump_xcoff32_symbols): Adapt to new diff --git a/binutils/dwarf.c b/binutils/dwarf.c index 562dce5..e1f7610 100644 --- a/binutils/dwarf.c +++ b/binutils/dwarf.c @@ -10957,6 +10957,8 @@ parse_gnu_debuglink (struct dwarf_section * section, void * data) name = (const char *) section->start; crc_offset = strnlen (name, section->size) + 1; + if (crc_offset == 1) + return NULL; crc_offset = (crc_offset + 3) & ~3; if (crc_offset + 4 > section->size) return NULL; @@ -10998,6 +11000,8 @@ parse_gnu_debugaltlink (struct dwarf_section * section, void * data) name = (const char *) section->start; namelen = strnlen (name, section->size) + 1; + if (namelen == 1) + return NULL; if (namelen >= section->size) return NULL; |