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| author | Sergei Petrunia <psergey@askmonty.org> | 2020-01-15 16:34:51 +0300 |
|---|---|---|
| committer | Sergei Petrunia <psergey@askmonty.org> | 2020-01-15 16:34:51 +0300 |
| commit | 4635047ca1dbcd8b536da4be9236ffab8d48f2d9 (patch) | |
| tree | 1947bab02b2c0ed0d7a832d6d922929a8352ee6d | |
| parent | 5e5ae51b730aa67f9efb87af4f4921309eac51f1 (diff) | |
| download | mariadb-git-4635047ca1dbcd8b536da4be9236ffab8d48f2d9.tar.gz | |
MDEV-21341: Fix UBSAN failures, part #5
Item_cond inherits from Item_args but doesn't store its arguments
as function arguments, which means it has zero arguments.
Don't call memcpy in this case.
| -rw-r--r-- | sql/item_func.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc index 702d8a1a2ee..ffd2b462431 100644 --- a/sql/item_func.cc +++ b/sql/item_func.cc @@ -109,7 +109,8 @@ Item_args::Item_args(THD *thd, const Item_args *other) arg_count= 0; return; } - memcpy(args, other->args, sizeof(Item*) * arg_count); + if (arg_count) + memcpy(args, other->args, sizeof(Item*) * arg_count); } |