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dm/connector: Only process connector packages from privileged processes

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(cherry picked from commit 93136335f9ad7a98b92eacda1b43dccbf063cd07)

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Philipp Reisner
2009-10-13 11:28:15 +02:00
committed by Greg Kroah-Hartman
parent dfd930656c
commit e1a7338bc0
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);
if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN))
return;
spin_lock(&receiving_list_lock);
if (msg->len == 0)
fill_pkg(msg, NULL);