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| author | Philipp Reisner <philipp.reisner@linbit.com> | 2009-10-02 02:40:08 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-02 10:54:10 -0700 |
| commit | 24836479a126e02be691e073c2b6cad7e7ab836a (patch) | |
| tree | 103d866a64b43f21bcf05baec542bac0aa6a221e | |
| parent | f1489cfb173509a3c13444b46b6c989bad4f5b16 (diff) | |
| download | lwn-24836479a126e02be691e073c2b6cad7e7ab836a.tar.gz lwn-24836479a126e02be691e073c2b6cad7e7ab836a.zip | |
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>
| -rw-r--r-- | drivers/md/dm-log-userspace-transfer.c | 3 |
1 files changed, 3 insertions, 0 deletions
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); |