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authorDavid Howells <dhowells@redhat.com>2016-06-17 11:00:48 +0100
committerDavid Howells <dhowells@redhat.com>2016-06-22 09:17:51 +0100
commitf4552c2d248e9d9f6f728ea32eb25f600d3d6cd6 (patch)
tree2236af71df6ff792ac2d2ffd9f483ffcfd5c3c18 /net/rxrpc
parent4a3388c8033e4ea00f06a341d5ed4a20a7da89de (diff)
downloadlinux-f4552c2d248e9d9f6f728ea32eb25f600d3d6cd6.tar.bz2
rxrpc: Validate the net address given to rxrpc_kernel_begin_call()
Validate the net address given to rxrpc_kernel_begin_call() before using it. Whilst this should be mostly unnecessary for in-kernel users, it does clear the tail of the address struct in case we want to hash or compare the whole thing. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc')
-rw-r--r--net/rxrpc/af_rxrpc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 408bd024125b..b29bb50af5de 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -280,9 +280,14 @@ struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock,
struct rxrpc_transport *trans;
struct rxrpc_call *call;
struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ int ret;
_enter(",,%x,%lx", key_serial(key), user_call_ID);
+ ret = rxrpc_validate_address(rx, srx, sizeof(*srx));
+ if (ret < 0)
+ return ERR_PTR(ret);
+
lock_sock(&rx->sk);
if (!key)