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Check builtin inline function index overflow

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This commit is contained in:
Nobuyoshi Nakada 2020-10-03 00:11:03 +09:00
parent 6aa466ba9c
commit 5a665f6ce7
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GPG Key ID: 7CD2805BFA3770C6
1 changed files with 5 additions and 2 deletions
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7
compile.c
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@ -7294,7 +7294,7 @@ compile_call(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, co
return COMPILE_NG;
}
else {
char inline_func[0x20];
char inline_func[DECIMAL_SIZE_OF_BITS(sizeof(int) * CHAR_BIT) + 1];
bool cconst = false;
retry:;
const struct rb_builtin_function *bf = iseq_builtin_function_lookup(iseq, builtin_func);
@ -7325,8 +7325,11 @@ compile_call(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node, co
return COMPILE_NG;
}
if (GET_VM()->builtin_inline_index == INT_MAX) {
rb_bug("builtin inline function index overflow:%s", builtin_func);
}
int inline_index = GET_VM()->builtin_inline_index++;
snprintf(inline_func, 0x20, "_bi%d", inline_index);
snprintf(inline_func, sizeof(inline_func), "_bi%d", inline_index);
builtin_func = inline_func;
args_node = NULL;
goto retry;