diff options
Diffstat (limited to 'net/netlink')
| -rw-r--r-- | net/netlink/af_netlink.c | 7 | ||||
| -rw-r--r-- | net/netlink/attr.c | 8 |
2 files changed, 14 insertions, 1 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 480184a857d..9eb895c7a2a 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -452,6 +452,10 @@ static int netlink_create(struct net *net, struct socket *sock, int protocol) if (err < 0) goto out_module; + local_bh_disable(); + sock_prot_inuse_add(net, &netlink_proto, 1); + local_bh_enable(); + nlk = nlk_sk(sock->sk); nlk->module = module; out: @@ -511,6 +515,9 @@ static int netlink_release(struct socket *sock) kfree(nlk->groups); nlk->groups = NULL; + local_bh_disable(); + sock_prot_inuse_add(sock_net(sk), &netlink_proto, -1); + local_bh_enable(); sock_put(sk); return 0; } diff --git a/net/netlink/attr.c b/net/netlink/attr.c index 2d106cfe1d2..56c3ce7fe29 100644 --- a/net/netlink/attr.c +++ b/net/netlink/attr.c @@ -83,6 +83,12 @@ static int validate_nla(struct nlattr *nla, int maxtype, if (attrlen < NLA_ALIGN(pt->len) + NLA_HDRLEN + nla_len(nla)) return -ERANGE; break; + case NLA_NESTED: + /* a nested attributes is allowed to be empty; if its not, + * it must have a size of at least NLA_HDRLEN. + */ + if (attrlen == 0) + break; default: if (pt->len) minlen = pt->len; @@ -233,7 +239,7 @@ size_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize) * * Returns the number of bytes copied. */ -int nla_memcpy(void *dest, struct nlattr *src, int count) +int nla_memcpy(void *dest, const struct nlattr *src, int count) { int minlen = min_t(int, count, nla_len(src)); |