| Message ID | 20230329124644.1956530-1-arne@rfc2549.org |
|---|---|
| State | New |
| Headers | show |
| Series | [Openvpn-devel,v2] Add missing check for nl_socket_alloc failure | expand |
On 29/03/2023 14:46, Arne Schwabe wrote: > This can happen if the memory alloc fails. > > Patch V2: add goto error > > Change-Id: Iee66caa794d267ac5f8bee584633352893047171 > Signed-off-by: Arne Schwabe <arne@rfc2549.org> > --- > src/openvpn/dco_linux.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/src/openvpn/dco_linux.c b/src/openvpn/dco_linux.c > index 41540c0f8..95fe94848 100644 > --- a/src/openvpn/dco_linux.c > +++ b/src/openvpn/dco_linux.c > @@ -83,6 +83,13 @@ resolve_ovpn_netlink_id(int msglevel) > int ret; > struct nl_sock *nl_sock = nl_socket_alloc(); > > + if (!nl_sock) > + { > + msg(msglevel, "Allocating net link socket failed"); > + ret = -1; Please use -ENOMEM here - it is always better to return an actual reason rather than just "failed". > + goto err_sock; There is no need to jump to cleanup. You can just return -1 here and save one line. (this is what we do in other functions of this file) Cheers,
diff --git a/src/openvpn/dco_linux.c b/src/openvpn/dco_linux.c index 41540c0f8..95fe94848 100644 --- a/src/openvpn/dco_linux.c +++ b/src/openvpn/dco_linux.c @@ -83,6 +83,13 @@ resolve_ovpn_netlink_id(int msglevel) int ret; struct nl_sock *nl_sock = nl_socket_alloc(); + if (!nl_sock) + { + msg(msglevel, "Allocating net link socket failed"); + ret = -1; + goto err_sock; + } + ret = genl_connect(nl_sock); if (ret) {
This can happen if the memory alloc fails. Patch V2: add goto error Change-Id: Iee66caa794d267ac5f8bee584633352893047171 Signed-off-by: Arne Schwabe <arne@rfc2549.org> --- src/openvpn/dco_linux.c | 7 +++++++ 1 file changed, 7 insertions(+)