2.6.38-stable review patch. If anyone has any objections, please let us know.
------------------ From: Vasiliy Kulikov <[email protected]> commit 43629f8f5ea32a998d06d1bb41eefa0e821ff573 upstream. Struct ca is copied from userspace. It is not checked whether the "device" field is NULL terminated. This potentially leads to BUG() inside of alloc_netdev_mqs() and/or information leak by creating a device with a name made of contents of kernel stack. Signed-off-by: Vasiliy Kulikov <[email protected]> Signed-off-by: Gustavo F. Padovan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- net/bluetooth/bnep/sock.c | 1 + 1 file changed, 1 insertion(+) --- a/net/bluetooth/bnep/sock.c +++ b/net/bluetooth/bnep/sock.c @@ -88,6 +88,7 @@ static int bnep_sock_ioctl(struct socket sockfd_put(nsock); return -EBADFD; } + ca.device[sizeof(ca.device)-1] = 0; err = bnep_add_connection(&ca, nsock); if (!err) { _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
