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PR28048, heap-buffer-overflow on readelf -Ww

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PR 28048
	* dwarf.c (get_type_signedness): Don't run off end of buffer
	printing DW_FORM_string attribute.
This commit is contained in:
Alan Modra
2021-07-02 23:18:04 +09:30
parent 62194b631d
commit 4ff0bb2df5
2 changed files with 7 additions and 1 deletions
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6
binutils/ChangeLog
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@ -1,3 +1,9 @@
2021-07-02 Alan Modra <amodra@gmail.com>
PR 28048
* dwarf.c (get_type_signedness): Don't run off end of buffer
printing DW_FORM_string attribute.
2021-07-01 Nick Clifton <nickc@redhat.com> 2021-07-01 Nick Clifton <nickc@redhat.com>
PR 28029 PR 28029

2
binutils/dwarf.c
View File

@ -2211,7 +2211,7 @@ get_type_signedness (abbrev_entry *entry,
if (attr->form == DW_FORM_strp) if (attr->form == DW_FORM_strp)
printf (", %s", fetch_indirect_string (uvalue)); printf (", %s", fetch_indirect_string (uvalue));
else if (attr->form == DW_FORM_string) else if (attr->form == DW_FORM_string)
printf (", %s", orig_data); printf (", %.*s", (int) (end - orig_data), orig_data);
} }
break; break;