diff options
| author |   Kulikov Vasiliy <segooon@gmail.com> | 2010-10-31 07:10:32 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-11-09 09:25:46 -0800 |
| commit | 88f8a5e3e7defccd3925cabb1ee4d3994e5cdb52 (patch) | |
| tree | 151d98558e8a210434e84d1e8127d681e975e80b /net/tipc | |
| parent | r8169: fix sleeping while holding spinlock. (diff) | |
| download | linux-dev-88f8a5e3e7defccd3925cabb1ee4d3994e5cdb52.tar.xz linux-dev-88f8a5e3e7defccd3925cabb1ee4d3994e5cdb52.zip | |
net: tipc: fix information leak to userland
Structure sockaddr_tipc is copied to userland with padding bytes after
"id" field in union field "name" unitialized. It leads to leaking of
contents of kernel stack memory. We have to initialize them to zero.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/socket.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 33217fc3d697..e9f0d5004483 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -396,6 +396,7 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr, struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; struct tipc_sock *tsock = tipc_sk(sock->sk); + memset(addr, 0, sizeof(*addr)); if (peer) { if ((sock->state != SS_CONNECTED) && ((peer != 2) || (sock->state != SS_DISCONNECTING))) |