https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100892

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |anlauf at gcc dot gnu.org
           Keywords|                            |ice-on-valid-code

--- Comment #2 from anlauf at gcc dot gnu.org ---
Fixing NULL pointer dereference:

diff --git a/gcc/fortran/check.cc b/gcc/fortran/check.cc
index fc97bb1371e..0c2cb50c6a7 100644
--- a/gcc/fortran/check.cc
+++ b/gcc/fortran/check.cc
@@ -1504,7 +1504,7 @@ gfc_check_associated (gfc_expr *pointer, gfc_expr
*target)
      argument of intrinsic inquiry functions.  */
   if (pointer->rank != -1 && !rank_check (target, 0, pointer->rank))
     t = false;
-  if (target->rank > 0)
+  if (target->rank > 0 && target->ref)
     {
       for (i = 0; i < target->rank; i++)
        if (target->ref->u.ar.dimen_type[i] == DIMEN_VECTOR)

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