X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fdwarf2read.c;h=5f0ec27036b1fa13a01da7d030abeb0f38c1eb23;hb=a604369a855e16ac17dbb40699fbb45cf03b766b;hp=75d81e9726be602bd1e93843e4a50f453857e965;hpb=b3cacbee3f248b67ae6518c428aeea115a46a50a;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 75d81e9726..5f0ec27036 100644
--- 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.  */