[fix](function)fix string split function buffer overflow (#12834)

2022-09-24 17:32:00 +08:00
parent f1a64ea09f
commit dd6ed5a9a7
1 changed files with 1 additions and 1 deletions
--- a/be/src/vec/functions/function_string.h
+++ b/be/src/vec/functions/function_string.h
@ -1013,7 +1013,7 @@ public:
                int32_t num = 0;
                while (num < part_number) {
                    pre_offset = offset;
-                    size_t n = str.size - offset;
+                    size_t n = str.size - offset - 1;
                    const char* pos = reinterpret_cast<const char*>(
                            memchr(str.data + offset + 1, delimiter_str[0], n));
                    if (pos != nullptr) {