X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Faarch64-dis.c;h=a860dbcb003378f2717f236b72fdc60484783d72;hb=38bf472a15210c222bb3885820e763c47760a704;hp=27ef22bc09f1ca29aa69f43be3c02a692ae391c3;hpb=6394c606997f88acfc80de4dff33a4ae2de987b4;p=deliverable%2Fbinutils-gdb.git

diff --git a/opcodes/aarch64-dis.c b/opcodes/aarch64-dis.c
index 27ef22bc09..a860dbcb00 100644
--- a/opcodes/aarch64-dis.c
+++ b/opcodes/aarch64-dis.c
@@ -409,6 +409,9 @@ aarch64_ext_ldst_reglist (const aarch64_operand *self ATTRIBUTE_UNUSED,
   info->reglist.first_regno = extract_field (FLD_Rt, code, 0);
   /* opcode */
   value = extract_field (FLD_opcode, code, 0);
+  /* PR 21595: Check for a bogus value.  */
+  if (value >= ARRAY_SIZE (data))
+    return 0;
   if (expected_num != data[value].num_elements || data[value].is_reserved)
     return 0;
   info->reglist.num_regs = data[value].num_regs;