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vm.c: check stack

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* 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
This commit is contained in:
nobu 2017-03-17 10:08:02 +00:00
parent 67c1197835
commit f31307d12d
1 changed files with 3 additions and 1 deletions
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4
vm.c
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@ -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<argc; i++) {
sp[i] = argv[i];
}