bpftool: Fix memory leak in do_build_table_cb
strdup() allocates memory for path. We need to release the memory in the
following error path. Add free() to avoid memory leak.
Fixes: 8f184732b60b ("bpftool: Switch to libbpf's hashmap for pinned paths of BPF objects")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20221206071906.806384-1-linmq006@gmail.com
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index c90b756..6200320 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -501,6 +501,7 @@ static int do_build_table_cb(const char *fpath, const struct stat *sb,
if (err) {
p_err("failed to append entry to hashmap for ID %u, path '%s': %s",
pinned_info.id, path, strerror(errno));
+ free(path);
goto out_close;
}
