diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index 2d15b8785a95..d787c16dc1c3 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -1300,10 +1300,17 @@ int io_register_clone_buffers(struct io_ring_ctx *ctx, void __user *arg)
 	if (src_ctx != ctx) {
 		mutex_unlock(&ctx->uring_lock);
 		lock_two_rings(ctx, src_ctx);
+
+		if (src_ctx->submitter_task &&
+		    src_ctx->submitter_task != current) {
+			ret = -EEXIST;
+			goto out;
+		}
 	}
 
 	ret = io_clone_buffers(ctx, src_ctx, &buf);
 
+out:
 	if (src_ctx != ctx)
 		mutex_unlock(&src_ctx->uring_lock);