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Fix heap use after free on mruby-aws-sigv4.

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This commit is contained in:
Takeshi Watanabe
2018-04-27 10:45:59 +09:00
parent 1b261382a0
commit b8869498b7
1 changed files with 2 additions and 0 deletions
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src/vm.c
+2
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@@ -527,6 +527,8 @@ mrb_exec_irep(mrb_state *mrb, mrb_value self, struct RProc *p)
return MRB_PROC_CFUNC(p)(mrb, self);
}
ci->nregs = p->body.irep->nregs;
ci->env = MRB_PROC_ENV(p);
if (ci->env) ci->env->stack[0] = self;
if (ci->argc < 0) keep = 3;
else keep = ci->argc + 2;
if (ci->nregs < keep) {