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authorDavid S. Miller <davem@davemloft.net>2014-01-28 18:04:18 -0800
committerDavid S. Miller <davem@davemloft.net>2014-01-28 18:04:18 -0800
commitcd0c75a78d737935c5ca8e7e2bfe7415d851bbce (patch)
tree3689494de76a71ef9f2e2f17381948fb981fb53a /net
parent0f1a24c9a9f4682dd61f5c39b9952f915c5e952c (diff)
parent1ea427359dde1573815e19c411ce08fdf0c42cfe (diff)
downloadlinux-stericsson-cd0c75a78d737935c5ca8e7e2bfe7415d851bbce.tar.gz
Merge tag 'rxrpc-20140126' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says: ==================== RxRPC fixes Here are some small AF_RXRPC fixes. (1) Fix a place where a spinlock is taken conditionally but is released unconditionally. (2) Fix a double-free that happens when cleaning up on a checksum error. (3) Fix handling of CHECKSUM_PARTIAL whilst delivering messages to userspace. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/rxrpc/ar-connection.c2
-rw-r--r--net/rxrpc/ar-recvmsg.c7
2 files changed, 8 insertions, 1 deletions
diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
index 4106ca95ec86..7bf5b5b9e8b9 100644
--- a/net/rxrpc/ar-connection.c
+++ b/net/rxrpc/ar-connection.c
@@ -381,6 +381,8 @@ static int rxrpc_connect_exclusive(struct rxrpc_sock *rx,
rxrpc_assign_connection_id(conn);
rx->conn = conn;
+ } else {
+ spin_lock(&trans->client_lock);
}
/* we've got a connection with a free channel and we can now attach the
diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c
index 898492a8d61b..34b5490dde65 100644
--- a/net/rxrpc/ar-recvmsg.c
+++ b/net/rxrpc/ar-recvmsg.c
@@ -180,7 +180,8 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock,
if (copy > len - copied)
copy = len - copied;
- if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ if (skb->ip_summed == CHECKSUM_UNNECESSARY ||
+ skb->ip_summed == CHECKSUM_PARTIAL) {
ret = skb_copy_datagram_iovec(skb, offset,
msg->msg_iov, copy);
} else {
@@ -353,6 +354,10 @@ csum_copy_error:
if (continue_call)
rxrpc_put_call(continue_call);
rxrpc_kill_skb(skb);
+ if (!(flags & MSG_PEEK)) {
+ if (skb_dequeue(&rx->sk.sk_receive_queue) != skb)
+ BUG();
+ }
skb_kill_datagram(&rx->sk, skb, flags);
rxrpc_put_call(call);
return -EAGAIN;