More fixes for illegal memory accesses triggered by running objdump on fuzzed binaries.

[deliverable/binutils-gdb.git] / bfd / elf64-alpha.c

diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c
index 0ffe3fada651817735e9721b238e17f5020b63ea..cfd328a229e0ccb482a083e94cf5c9c837c0d26d 100644 (file)
--- a/bfd/elf64-alpha.c
+++ b/bfd/elf64-alpha.c
@@ -486,8 +486,8 @@ static reloc_howto_type elf64_alpha_howto_table[] =
 {
   HOWTO (R_ALPHA_NONE,         /* type */
         0,                     /* rightshift */
-        0,                     /* size (0 = byte, 1 = short, 2 = long) */
-        8,                     /* bitsize */
+        3,                     /* size (0 = byte, 1 = short, 2 = long) */
+        0,                     /* bitsize */
         TRUE,                  /* pc_relative */
         0,                     /* bitpos */
         complain_overflow_dont, /* complain_on_overflow */
@@ -1105,7 +1105,14 @@ elf64_alpha_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
                           Elf_Internal_Rela *dst)
 {
   unsigned r_type = ELF64_R_TYPE(dst->r_info);
-  BFD_ASSERT (r_type < (unsigned int) R_ALPHA_max);
+
+  if (r_type >= R_ALPHA_max)
+    {
+      (*_bfd_error_handler) (_("%B: unrecognised Alpha reloc number: %d"),
+                            abfd, r_type);
+      bfd_set_error (bfd_error_bad_value);
+      r_type = R_ALPHA_NONE;
+    }
   cache_ptr->howto = &elf64_alpha_howto_table[r_type];
 }