Re: A crash bug in v5.1.4
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- Subject: Re: A crash bug in v5.1.4
- From: Mike Pall <mikelu-0906@...>
- Date: 2009年6月27日 10:33:17 +0200
mark@ppl-pilot.com wrote:
> I've tracked down the cause of this bug and created a patch to fix it, you
> can find it at the end of my article on accessors:
Shorter/better patch attached.
--Mike
--- lua-5.1.4/src/lvm.c 2007年12月28日 16:32:23 +0100
+++ lua-5.1.4-settable/src/lvm.c 2009年06月27日 10:27:31 +0200
@@ -132,6 +132,7 @@
void luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val) {
+ TValue tmp;
int loop;
for (loop = 0; loop < MAXTAGLOOP; loop++) {
const TValue *tm;
@@ -152,7 +153,8 @@
callTM(L, tm, t, key, val);
return;
}
- t = tm; /* else repeat with `tm' */
+ setobj(L, &tmp, tm);
+ t = &tmp; /* else repeat with copy of `tm' */
}
luaG_runerror(L, "loop in settable");
}