diff -up fs/pipe.c.pipe_fd_sigio_poll_hup fs/pipe.c
--- fs/pipe.c.pipe_fd_sigio_poll_hup	2022-08-31 16:18:21.000000000 +0100
+++ fs/pipe.c	2022-09-07 14:03:00.438030398 +0100
@@ -383,7 +383,11 @@ pipe_read(struct kiocb *iocb, struct iov
 		wake_next_reader = true;
 	}
 	if (pipe_empty(pipe->head, pipe->tail))
+	{
 		wake_next_reader = false;
+		if ( pipe->fasync_readers && !pipe->writers )
+			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_HUP);
+	}
 	__pipe_unlock(pipe);
 
 	if (was_full)
@@ -592,7 +596,13 @@ out:
 	 */
 	if (was_empty || pipe->poll_usage)
 		wake_up_interruptible_sync_poll(&pipe->rd_wait, EPOLLIN | EPOLLRDNORM);
-	kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+
+	if ( (ret > 0) && pipe->fasync_readers && !pipe_empty(pipe->head, pipe->tail) )
+		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+	else
+	if ( !pipe->writers )
+		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_HUP);
+
 	if (wake_next_writer)
 		wake_up_interruptible_sync_poll(&pipe->wr_wait, EPOLLOUT | EPOLLWRNORM);
 	if (ret > 0 && sb_start_write_trylock(file_inode(filp)->i_sb)) {