From e1a7338bc0da30633357c84be4df222a1bdbfd99 Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Tue, 13 Oct 2009 11:28:15 +0200 Subject: [PATCH] dm/connector: Only process connector packages from privileged processes (cherry picked from commit 93136335f9ad7a98b92eacda1b43dccbf063cd07) Signed-off-by: Philipp Reisner Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-log-userspace-transfer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c index 1327e1a684df..54abf9e303b7 100644 --- a/drivers/md/dm-log-userspace-transfer.c +++ b/drivers/md/dm-log-userspace-transfer.c @@ -133,6 +133,9 @@ static void cn_ulog_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp) { struct dm_ulog_request *tfr = (struct dm_ulog_request *)(msg + 1); + if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) + return; + spin_lock(&receiving_list_lock); if (msg->len == 0) fill_pkg(msg, NULL); -- 2.39.5