5 files changed, 53 insertions, 15 deletions

diff --git a/xlators/features/locks/src/common.c b/xlators/features/locks/src/common.c
index 9e06484308e..0a9c9293f01 100644
--- a/xlators/features/locks/src/common.c
+++ b/xlators/features/locks/src/common.c
@@ -493,7 +493,8 @@ unlock:
 /* Create a new posix_lock_t */
 posix_lock_t *
 new_posix_lock(struct gf_flock *flock, client_t *client, pid_t client_pid,
-               gf_lkowner_t *owner, fd_t *fd, uint32_t lk_flags, int blocking)
+               gf_lkowner_t *owner, fd_t *fd, uint32_t lk_flags, int blocking,
+               int32_t *op_errno)
 {
     posix_lock_t *lock = NULL;
 
@@ -501,8 +502,14 @@ new_posix_lock(struct gf_flock *flock, client_t *client, pid_t client_pid,
     GF_VALIDATE_OR_GOTO("posix-locks", client, out);
     GF_VALIDATE_OR_GOTO("posix-locks", fd, out);
 
+    if (!pl_is_lk_owner_valid(owner, client)) {
+        *op_errno = EINVAL;
+        goto out;
+    }
+
     lock = GF_CALLOC(1, sizeof(posix_lock_t), gf_locks_mt_posix_lock_t);
     if (!lock) {
+        *op_errno = ENOMEM;
         goto out;
     }
 
@@ -520,6 +527,7 @@ new_posix_lock(struct gf_flock *flock, client_t *client, pid_t client_pid,
     if (lock->client_uid == NULL) {
         GF_FREE(lock);
         lock = NULL;
+        *op_errno = ENOMEM;
         goto out;
     }
 
@@ -988,6 +996,7 @@ pl_send_prelock_unlock(xlator_t *this, pl_inode_t *pl_inode,
         0,
     };
     posix_lock_t *unlock_lock = NULL;
+    int32_t op_errno = 0;
 
     struct list_head granted_list;
     posix_lock_t *tmp = NULL;
@@ -1005,7 +1014,7 @@ pl_send_prelock_unlock(xlator_t *this, pl_inode_t *pl_inode,
 
     unlock_lock = new_posix_lock(&flock, old_lock->client, old_lock->client_pid,
                                  &old_lock->owner, old_lock->fd,
-                                 old_lock->lk_flags, 0);
+                                 old_lock->lk_flags, 0, &op_errno);
     GF_VALIDATE_OR_GOTO(this->name, unlock_lock, out);
     ret = 0;
 
@@ -1272,4 +1281,17 @@ pl_local_init(call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd)
     }
 
     return 0;
-}
\ No newline at end of file
+}
+
+gf_boolean_t
+pl_is_lk_owner_valid(gf_lkowner_t *owner, client_t *client)
+{
+    if (client && (client->opversion < GD_OP_VERSION_7_0)) {
+        return _gf_true;
+    }
+
+    if (is_lk_owner_null(owner)) {
+        return _gf_false;
+    }
+    return _gf_true;
+}
diff --git a/xlators/features/locks/src/common.h b/xlators/features/locks/src/common.h
index 3a7496758ab..55603ef9c42 100644
--- a/xlators/features/locks/src/common.h
+++ b/xlators/features/locks/src/common.h
@@ -51,7 +51,8 @@
 
 posix_lock_t *
 new_posix_lock(struct gf_flock *flock, client_t *client, pid_t client_pid,
-               gf_lkowner_t *owner, fd_t *fd, uint32_t lk_flags, int can_block);
+               gf_lkowner_t *owner, fd_t *fd, uint32_t lk_flags, int blocking,
+               int32_t *op_errno);
 
 pl_inode_t *
 pl_inode_get(xlator_t *this, inode_t *inode, pl_local_t *local);
@@ -212,4 +213,6 @@ pl_clean_local(pl_local_t *local);
 int
 pl_local_init(call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd);
 
+gf_boolean_t
+pl_is_lk_owner_valid(gf_lkowner_t *owner, client_t *client);
 #endif /* __COMMON_H__ */
diff --git a/xlators/features/locks/src/entrylk.c b/xlators/features/locks/src/entrylk.c
index ced5eca2749..9d6a4c93057 100644
--- a/xlators/features/locks/src/entrylk.c
+++ b/xlators/features/locks/src/entrylk.c
@@ -39,13 +39,20 @@ __pl_entrylk_ref(pl_entry_lock_t *lock)
 
 static pl_entry_lock_t *
 new_entrylk_lock(pl_inode_t *pinode, const char *basename, entrylk_type type,
-                 const char *domain, call_frame_t *frame, char *conn_id)
+                 const char *domain, call_frame_t *frame, char *conn_id,
+                 int32_t *op_errno)
 {
     pl_entry_lock_t *newlock = NULL;
 
+    if (!pl_is_lk_owner_valid(&frame->root->lk_owner, frame->root->client)) {
+        *op_errno = EINVAL;
+        goto out;
+    }
+
     newlock = GF_CALLOC(1, sizeof(pl_entry_lock_t),
                         gf_locks_mt_pl_entry_lock_t);
     if (!newlock) {
+        *op_errno = ENOMEM;
         goto out;
     }
 
@@ -793,10 +800,9 @@ pl_common_entrylk(call_frame_t *frame, xlator_t *this, const char *volume,
     entrylk_trace_in(this, frame, volume, fd, loc, basename, cmd, type);
 
     reqlock = new_entrylk_lock(pinode, basename, type, dom->domain, frame,
-                               conn_id);
+                               conn_id, &op_errno);
     if (!reqlock) {
         op_ret = -1;
-        op_errno = ENOMEM;
         goto unwind;
     }
 
diff --git a/xlators/features/locks/src/inodelk.c b/xlators/features/locks/src/inodelk.c
index df00ede242d..95afc902ffa 100644
--- a/xlators/features/locks/src/inodelk.c
+++ b/xlators/features/locks/src/inodelk.c
@@ -873,17 +873,23 @@ pl_inode_setlk(xlator_t *this, pl_ctx_t *ctx, pl_inode_t *pl_inode,
 }
 
 /* Create a new inode_lock_t */
-pl_inode_lock_t *
+static pl_inode_lock_t *
 new_inode_lock(struct gf_flock *flock, client_t *client, pid_t client_pid,
                call_frame_t *frame, xlator_t *this, const char *volume,
-               char *conn_id)
+               char *conn_id, int32_t *op_errno)
 
 {
     pl_inode_lock_t *lock = NULL;
 
+    if (!pl_is_lk_owner_valid(&frame->root->lk_owner, frame->root->client)) {
+        *op_errno = EINVAL;
+        goto out;
+    }
+
     lock = GF_CALLOC(1, sizeof(*lock), gf_locks_mt_pl_inode_lock_t);
     if (!lock) {
-        return NULL;
+        *op_errno = ENOMEM;
+        goto out;
     }
 
     lock->fl_start = flock->l_start;
@@ -911,6 +917,7 @@ new_inode_lock(struct gf_flock *flock, client_t *client, pid_t client_pid,
     INIT_LIST_HEAD(&lock->contend);
     __pl_inodelk_ref(lock);
 
+out:
     return lock;
 }
 
@@ -1005,11 +1012,10 @@ pl_common_inodelk(call_frame_t *frame, xlator_t *this, const char *volume,
     }
 
     reqlock = new_inode_lock(flock, frame->root->client, frame->root->pid,
-                             frame, this, dom->domain, conn_id);
+                             frame, this, dom->domain, conn_id, &op_errno);
 
     if (!reqlock) {
         op_ret = -1;
-        op_errno = ENOMEM;
         goto unwind;
     }
 
diff --git a/xlators/features/locks/src/posix.c b/xlators/features/locks/src/posix.c
index 9d7210f1bb5..d2fc82feacb 100644
--- a/xlators/features/locks/src/posix.c
+++ b/xlators/features/locks/src/posix.c
@@ -2302,9 +2302,10 @@ __fd_has_locks(pl_inode_t *pl_inode, fd_t *fd)
 static posix_lock_t *
 lock_dup(posix_lock_t *lock)
 {
+    int32_t op_errno = 0;
     return new_posix_lock(&lock->user_flock, lock->client, lock->client_pid,
                           &lock->owner, (fd_t *)lock->fd_num, lock->lk_flags,
-                          lock->blocking);
+                          lock->blocking, &op_errno);
 }
 
 static int
@@ -2521,11 +2522,11 @@ pl_lk(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t cmd,
     }
 
     reqlock = new_posix_lock(flock, frame->root->client, frame->root->pid,
-                             &frame->root->lk_owner, fd, lk_flags, can_block);
+                             &frame->root->lk_owner, fd, lk_flags, can_block,
+                             &op_errno);
 
     if (!reqlock) {
         op_ret = -1;
-        op_errno = ENOMEM;
         goto unwind;
     }