diff options
Diffstat (limited to 'libdw/dwarf_child.c')
| -rw-r--r-- | libdw/dwarf_child.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libdw/dwarf_child.c b/libdw/dwarf_child.c index 2e39d834..c8c8bb61 100644 --- a/libdw/dwarf_child.c +++ b/libdw/dwarf_child.c @@ -53,6 +53,8 @@ __libdw_find_attr (Dwarf_Die *die, unsigned int search_name, return NULL; } + const unsigned char *endp = die->cu->endp; + /* Search the name attribute. Attribute has been checked when Dwarf_Abbrev was created, we can read unchecked. */ const unsigned char *attrp = abbrevp->attrp; @@ -69,6 +71,17 @@ __libdw_find_attr (Dwarf_Die *die, unsigned int search_name, if (attr_name == 0 && attr_form == 0) break; + if (attr_form == DW_FORM_indirect) + { + get_uleb128 (attr_form, readp, endp); + if (attr_form == DW_FORM_indirect || + attr_form == DW_FORM_implicit_const) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + } + /* Is this the name attribute? */ if (attr_name == search_name && search_name != INVALID) { |