tc: act_bpf: fix memory leak

prog->bpf_ops is populated when act_bpf is used with classic BPF and
prog->bpf_name is optionally used with extended BPF.
Fix memory leak when act_bpf is released.

Fixes: d23b8ad8ab23 ("tc: add BPF based action")
Fixes: a8cb5f556b56 ("act_bpf: add initial eBPF support for actions")
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index 1d56903fd4c7..1df78289e248 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -339,6 +339,9 @@ static void tcf_bpf_cleanup(struct tc_action *act, int bind)
                 bpf_prog_put(prog->filter);
         else
                 bpf_prog_destroy(prog->filter);
+
+        kfree(prog->bpf_ops);
+        kfree(prog->bpf_name);
 }
 
 static struct tc_action_ops act_bpf_ops __read_mostly = {