https://bugs.openldap.org/show_bug.cgi?id=10342

Issue ID: 10342 Summary: Potential Memory Leak in function mdb_txn_begin Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs@openldap.org Reporter: alexguo1023@gmail.com Target Milestone: ---

Created attachment 1069 --> https://bugs.openldap.org/attachment.cgi?id=1069&action=edit Free txn->mt_u.dirty_list before freeing txn

The function `mdb_txn_begin` allocates the dirty list via

```c txn->mt_u.dirty_list = malloc(sizeof(MDB_ID2) * MDB_IDL_UM_SIZE); ```

Later, when `txn != env->me_txn0`, it calls

```c free(txn); ```

without first freeing `txn->mt_u.dirty_list`. This orphaned allocation leads to a memory leak.