1 files changed, 14 insertions, 13 deletions

diff --git a/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c
index c6983978a31e..6913f727624d 100644
--- a/fs/ecryptfs/messaging.c
+++ b/fs/ecryptfs/messaging.c
@@ -360,7 +360,8 @@ int ecryptfs_process_response(struct ecryptfs_message *msg, uid_t euid,
         struct ecryptfs_msg_ctx *msg_ctx;
         size_t msg_size;
         struct nsproxy *nsproxy;
-        struct user_namespace *current_user_ns;
+        struct user_namespace *tsk_user_ns;
+        uid_t ctx_euid;
         int rc;
 
         if (msg->index >= ecryptfs_message_buf_len) {
@@ -384,9 +385,9 @@ int ecryptfs_process_response(struct ecryptfs_message *msg, uid_t euid,
                 mutex_unlock(&ecryptfs_daemon_hash_mux);
                 goto wake_up;
         }
-        current_user_ns = nsproxy->user_ns;
-        rc = ecryptfs_find_daemon_by_euid(&daemon, msg_ctx->task->euid,
-                                          current_user_ns);
+        tsk_user_ns = __task_cred(msg_ctx->task)->user->user_ns;
+        ctx_euid = task_euid(msg_ctx->task);
+        rc = ecryptfs_find_daemon_by_euid(&daemon, ctx_euid, tsk_user_ns);
         rcu_read_unlock();
         mutex_unlock(&ecryptfs_daemon_hash_mux);
         if (rc) {
@@ -394,28 +395,28 @@ int ecryptfs_process_response(struct ecryptfs_message *msg, uid_t euid,
                 printk(KERN_WARNING "%s: User [%d] received a "
                        "message response from process [0x%p] but does "
                        "not have a registered daemon\n", __func__,
-                       msg_ctx->task->euid, pid);
+                       ctx_euid, pid);
                 goto wake_up;
         }
-        if (msg_ctx->task->euid != euid) {
+        if (ctx_euid != euid) {
                 rc = -EBADMSG;
                 printk(KERN_WARNING "%s: Received message from user "
                        "[%d]; expected message from user [%d]\n", __func__,
-                       euid, msg_ctx->task->euid);
+                       euid, ctx_euid);
                 goto unlock;
         }
-        if (current_user_ns != user_ns) {
+        if (tsk_user_ns != user_ns) {
                 rc = -EBADMSG;
                 printk(KERN_WARNING "%s: Received message from user_ns "
                        "[0x%p]; expected message from user_ns [0x%p]\n",
-                       __func__, user_ns, nsproxy->user_ns);
+                       __func__, user_ns, tsk_user_ns);
                 goto unlock;
         }
         if (daemon->pid != pid) {
                 rc = -EBADMSG;
                 printk(KERN_ERR "%s: User [%d] sent a message response "
                        "from an unrecognized process [0x%p]\n",
-                       __func__, msg_ctx->task->euid, pid);
+                       __func__, ctx_euid, pid);
                 goto unlock;
         }
         if (msg_ctx->state != ECRYPTFS_MSG_CTX_STATE_PENDING) {
@@ -464,14 +465,14 @@ ecryptfs_send_message_locked(char *data, int data_len, u8 msg_type,
                              struct ecryptfs_msg_ctx **msg_ctx)
 {
         struct ecryptfs_daemon *daemon;
+        uid_t euid = current_euid();
         int rc;
 
-        rc = ecryptfs_find_daemon_by_euid(&daemon, current->euid,
-                                          current->nsproxy->user_ns);
+        rc = ecryptfs_find_daemon_by_euid(&daemon, euid, current_user_ns());
         if (rc || !daemon) {
                 rc = -ENOTCONN;
                 printk(KERN_ERR "%s: User [%d] does not have a daemon "
-                       "registered\n", __func__, current->euid);
+                       "registered\n", __func__, euid);
                 goto out;
         }
         mutex_lock(&ecryptfs_msg_ctx_lists_mux);