[Bugfix](string_functions) fix heap-buffer-overflow on find_in_set (#12613)

2022-09-15 08:43:10 +08:00
parent 47d43b34b3
commit d8b6f09cc1
1 changed files with 1 additions and 1 deletions
--- a/be/src/exprs/string_functions.cpp
+++ b/be/src/exprs/string_functions.cpp
@ -710,7 +710,7 @@ IntVal StringFunctions::find_in_set(FunctionContext* context, const StringVal& s
    do {
        end = start;
        // Position end.
-        while (str_set.ptr[end] != ',' && end < str_set.len) {
+        while (end < str_set.len && str_set.ptr[end] != ',') {
            ++end;
        }
        StringValue token(reinterpret_cast<char*>(str_set.ptr) + start, end - start);