It's not enough to just free(map->inner_map), as inner_map itself can
have extra memory allocated, like map name.
Fixes: 646f02ffdd49 ("libbpf: Add BTF-defined map-in-map support")
Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
---
tools/lib/bpf/libbpf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 7fcea11ecaa9..186c1e8282d0 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -9053,6 +9053,7 @@ int bpf_map__set_inner_map_fd(struct bpf_map *map, int fd)
pr_warn("error: inner_map_fd already specified\n");
return libbpf_err(-EINVAL);
}
+ bpf_map__destroy(map->inner_map);
zfree(&map->inner_map);
map->inner_map_fd = fd;
return 0;
--
2.30.2
