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-rw-r--r--tools/perf/util/map.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index f67960bedebb..cea05fc9595c 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -375,8 +375,13 @@ struct symbol *map__find_symbol_by_name(struct map *map, const char *name)
struct map *map__clone(struct map *from)
{
- struct map *map = memdup(from, sizeof(*map));
+ size_t size = sizeof(struct map);
+ struct map *map;
+
+ if (from->dso && from->dso->kernel)
+ size += sizeof(struct kmap);
+ map = memdup(from, size);
if (map != NULL) {
refcount_set(&map->refcnt, 1);
RB_CLEAR_NODE(&map->rb_node);