readelf: Correct overflow check for length in print_debug_aranges_section.

Signed-off-by: Mark Wielaard <mjw@redhat.com>

diff --git a/src/ChangeLog b/src/ChangeLog
index 112af1916dd83665f9cd10c31527409a22f08549..576ed83f069264015bb55e5886a18965e67c0f9f 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -2,6 +2,7 @@
 
        * readelf.c (print_debug_line_section): Correct overflow check for
        unit_length.
+       (print_debug_aranges_section): Correct overflow check for length.
 
 2014-12-15  Mark Wielaard  <mjw@redhat.com>
 

diff --git a/src/readelf.c b/src/readelf.c
index 3c686d5c43895313f79b446da9e640cfb07f3944..9c62853e39a715b9edc9967f4178aae8cb56f456 100644 (file)
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -4711,7 +4711,7 @@ print_debug_aranges_section (Dwfl_Module *dwflmod __attribute__ ((unused)),
       printf (gettext ("\n Length:        %6" PRIu64 "\n"),
              (uint64_t) length);
 
-      if (unlikely ((ptrdiff_t) length > readendp - readp))
+      if (unlikely (length > (size_t) (readendp - readp)))
        goto invalid_data;
 
       if (length == 0)