diff options
Diffstat (limited to 'net/ipv4/raw.c')
| -rw-r--r-- | net/ipv4/raw.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 5998c4cc6f47..e20c41206e29 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -481,6 +481,8 @@ static int raw_getfrag(void *from, char *to, int offset, int len, int odd, static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) { + DEFINE_RAW_FLEX(struct ip_options_rcu, opt_copy, opt.__data, + IP_OPTIONS_DATA_FIXED_SIZE); struct inet_sock *inet = inet_sk(sk); struct net *net = sock_net(sk); struct ipcm_cookie ipc; @@ -491,7 +493,6 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) __be32 daddr; __be32 saddr; int uc_index, err; - struct ip_options_data opt_copy; struct raw_frag_vec rfv; int hdrincl; @@ -561,9 +562,9 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) rcu_read_lock(); inet_opt = rcu_dereference(inet->inet_opt); if (inet_opt) { - memcpy(&opt_copy, inet_opt, + memcpy(opt_copy, inet_opt, sizeof(*inet_opt) + inet_opt->opt.optlen); - ipc.opt = &opt_copy.opt; + ipc.opt = opt_copy; } rcu_read_unlock(); } |