* dwarf2read.c (dwarf2_get_pc_bounds): Complain if offset

[deliverable/binutils-gdb.git] / gdb / dwarf2read.c

diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 75d81e9726be602bd1e93843e4a50f453857e965..5f0ec27036b1fa13a01da7d030abeb0f38c1eb23 100644 (file)
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -2314,7 +2314,7 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
          unsigned int addr_size = cu_header->addr_size;
          CORE_ADDR mask = ~(~(CORE_ADDR)1 << (addr_size * 8 - 1));
          /* Value of the DW_AT_ranges attribute is the offset in the
-            .debug_renges section.  */
+            .debug_ranges section.  */
          unsigned int offset = DW_UNSND (attr);
          /* Base address selection entry.  */
          CORE_ADDR base;
@@ -2327,6 +2327,14 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
  
          found_base = cu_header->base_known;
          base = cu_header->base_address;
+
+         if (offset >= dwarf_ranges_size)
+           {
+             complaint (&symfile_complaints,
+                        "Offset %d out of bounds for DW_AT_ranges attribute",
+                        offset);
+             return 0;
+           }
          buffer = dwarf_ranges_buffer + offset;
 
          /* Read in the largest possible address.  */