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-rw-r--r--storage/innobase/dict/dict0mem.cc3
1 files changed, 2 insertions, 1 deletions
diff --git a/storage/innobase/dict/dict0mem.cc b/storage/innobase/dict/dict0mem.cc
index c9988997801..7fc8ab79395 100644
--- a/storage/innobase/dict/dict0mem.cc
+++ b/storage/innobase/dict/dict0mem.cc
@@ -448,7 +448,8 @@ dict_mem_table_col_rename_low(
ut_ad(to_len <= NAME_LEN);
char from[NAME_LEN + 1];
- strncpy(from, s, NAME_LEN + 1);
+ strncpy(from, s, sizeof from - 1);
+ from[sizeof from - 1] = '\0';
if (from_len == to_len) {
/* The easy case: simply replace the column name in