https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103717
anlauf at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2021-12-14 CC| |anlauf at gcc dot gnu.org Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Priority|P3 |P4 --- Comment #1 from anlauf at gcc dot gnu.org --- Confirmed. NULL pointer dereference: diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c index c106ee0957a..6ffe072b185 100644 --- a/gcc/fortran/frontend-passes.c +++ b/gcc/fortran/frontend-passes.c @@ -2653,7 +2653,7 @@ doloop_code (gfc_code **c, int *walk_subtrees ATTRIBUTE_UNUSED, do_sym = cl->ext.iterator->var->symtree->n.sym; - if (a->expr && a->expr->symtree + if (a->expr && a->expr->symtree && f->sym && a->expr->symtree->n.sym == do_sym) { if (f->sym->attr.intent == INTENT_OUT)