mirror of https://mirror.osredm.com/root/redis.git
Backport Lua 5.2.2 stack overflow fix. (#7733)
This fixes the issue described in CVE-2014-5461. At this time we cannot
confirm that the original issue has a real impact on Redis, but it is
included as an extra safety measure.
(cherry picked from commit d75ad774a9
)
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@ -274,7 +274,7 @@ int luaD_precall (lua_State *L, StkId func, int nresults) {
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CallInfo *ci;
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StkId st, base;
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Proto *p = cl->p;
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luaD_checkstack(L, p->maxstacksize);
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luaD_checkstack(L, p->maxstacksize + p->numparams);
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func = restorestack(L, funcr);
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if (!p->is_vararg) { /* no varargs? */
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base = func + 1;
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