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dm/connector: Only process connector packages from privileged processes 

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Philipp Reisner 2009-10-02 02:40:08 +00:00 committed by David S. Miller
parent f1489cfb17
commit 24836479a1
1 changed files with 3 additions and 0 deletions
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3
drivers/md/dm-log-userspace-transfer.c
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@ -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); 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); spin_lock(&receiving_list_lock);
if (msg->len == 0) if (msg->len == 0)
fill_pkg(msg, NULL); fill_pkg(msg, NULL);