From f31307d12d7f75065a95fc96d8ac0eb2d3bf5442 Mon Sep 17 00:00:00 2001 From: nobu Date: Fri, 17 Mar 2017 10:08:02 +0000 Subject: [PATCH] vm.c: check stack * vm.c (invoke_iseq_block_from_c): check stack overflow before pushing arguments. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58004 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- vm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/vm.c b/vm.c index c542546309..f336c5506f 100644 --- a/vm.c +++ b/vm.c @@ -992,10 +992,12 @@ invoke_iseq_block_from_c(rb_thread_t *th, const struct rb_captured_block *captur const rb_iseq_t *iseq = rb_iseq_check(captured->code.iseq); int i, opt_pc; VALUE type = is_lambda ? VM_FRAME_MAGIC_LAMBDA : VM_FRAME_MAGIC_BLOCK; - VALUE *sp = th->cfp->sp; + rb_control_frame_t *cfp = th->cfp; + VALUE *sp = cfp->sp; const rb_callable_method_entry_t *me = th->passed_bmethod_me; th->passed_bmethod_me = NULL; + CHECK_VM_STACK_OVERFLOW(cfp, argc); for (i=0; i