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Merge pull request #2320 from TerryE/devLuaStackFix 

Fix Lua stack corruption problem
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Terry Ellison 2018-03-26 18:22:15 +01:00 committed by GitHub
parent 519d6df62c d78c54accd
commit 477116f79f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 0 deletions
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app/lua/ldo.c
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@ -144,8 +144,11 @@ static void correctstack (lua_State *L, TValue *oldstack) {
void luaD_reallocstack (lua_State *L, int newsize) {
TValue *oldstack = L->stack;
int realsize = newsize + 1 + EXTRA_STACK;
int block_status = is_block_gc(L);
lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1);
set_block_gc(L); /* The GC MUST be blocked during stack reallocaiton */
luaM_reallocvector(L, L->stack, L->stacksize, realsize, TValue);
if (!block_status) unset_block_gc(L); /* Honour the previous block status */
L->stacksize = realsize;
L->stack_last = L->stack+newsize;
correctstack(L, oldstack);