| commit | 2bb90e5cc90e1d09f631aeab041a9cf913a5bbe5 | [log] [tgz] |
|---|---|---|
| author | John Fastabend <john.fastabend@gmail.com> | Fri Jul 19 10:29:20 2019 -0700 |
| committer | Daniel Borkmann <daniel@iogearbox.net> | Mon Jul 22 16:04:17 2019 +0200 |
| tree | 2bd6fddc5a229ea3926fffc1fa4841a16f45ad9d | |
| parent | 45a4521dcbd92e71c9e53031b40e34211d3b4feb [diff] |
bpf: sockmap, synchronize_rcu before free'ing map
We need to have a synchronize_rcu before free'ing the sockmap because
any outstanding psock references will have a pointer to the map and
when they use this could trigger a use after free.
Fixes: 604326b41a6fb ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>