** Branch linked: lp:~ubuntu-branches/ubuntu/utopic/lua5.1/utopic- proposed
-- You received this bug notification because you are a member of Translators Packages, which is subscribed to lua5.1 in Ubuntu. https://bugs.launchpad.net/bugs/1362278 Title: Stack overflow in vararg functions with many fixed parameters called with few arguments Status in “lua5.1” package in Ubuntu: Confirmed Status in “lua5.2” package in Ubuntu: Fix Released Status in “lua5.1” source package in Precise: Confirmed Status in “lua5.2” source package in Precise: Confirmed Status in “lua5.1” source package in Trusty: Confirmed Status in “lua5.2” source package in Trusty: Fix Released Status in “lua5.1” source package in Utopic: Confirmed Status in “lua5.2” source package in Utopic: Fix Released Bug description: See http://www.lua.org/bugs.html section 5.2.2 for details. Essentially: Stack overflow in vararg functions with many fixed parameters called with few arguments. reported by 云风 on 17 Apr 2013. existed since 5.1. fixed in 5.2.3. Example: function f(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, p12, p13, p14, p15, p16, p17, p18, p19, p20, p21, p22, p23, p24, p25, p26, p27, p28, p29, p30, p31, p32, p33, p34, p35, p36, p37, p38, p39, p40, p41, p42, p43, p44, p45, p46, p48, p49, p50, ...) local a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14 end f() -- crashes on some machines Patch: ldo.c: @@ -324,7 +324,7 @@ case LUA_TLCL: { /* Lua function: prepare its call */ StkId base; Proto *p = clLvalue(func)->p; - luaD_checkstack(L, p->maxstacksize); + luaD_checkstack(L, p->maxstacksize + p->numparams); func = restorestack(L, funcr); n = cast_int(L->top - func) - 1; /* number of real arguments */ for (; n < p->numparams; n++) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lua5.1/+bug/1362278/+subscriptions -- Mailing list: https://launchpad.net/~translators-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~translators-packages More help : https://help.launchpad.net/ListHelp
