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-rw-r--r--source3/tdb/tdb.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/source3/tdb/tdb.c b/source3/tdb/tdb.c
index f153e2f258..7159550c0c 100644
--- a/source3/tdb/tdb.c
+++ b/source3/tdb/tdb.c
@@ -832,9 +832,14 @@ static int tdb_expand(TDB_CONTEXT *tdb, tdb_off size)
tdb->map_size += size;
- if (tdb->flags & TDB_INTERNAL)
- tdb->map_ptr = realloc(tdb->map_ptr, tdb->map_size);
- else {
+ if (tdb->flags & TDB_INTERNAL) {
+ char *new_map_ptr = realloc(tdb->map_ptr, tdb->map_size);
+ if (!new_map_ptr) {
+ tdb->map_size -= size;
+ goto fail;
+ }
+ tdb->map_ptr = new_map_ptr;
+ } else {
/*
* We must ensure the file is remapped before adding the space
* to ensure consistency with systems like OpenBSD where