io_uring/net: don't overflow multishot accept
authorPavel Begunkov <asml.silence@gmail.com>
Fri, 11 Aug 2023 12:53:41 +0000 (13:53 +0100)
committerJens Axboe <axboe@kernel.dk>
Fri, 11 Aug 2023 16:42:34 +0000 (10:42 -0600)
Don't allow overflowing multishot accept CQEs, we want to limit
the grows of the overflow list.

Cc: stable@vger.kernel.org
Fixes: 4e86a2c980137 ("io_uring: implement multishot mode for accept")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7d0d749649244873772623dd7747966f516fe6e2.1691757663.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/net.c

index eb1f51d..1599493 100644 (file)
@@ -1367,7 +1367,7 @@ retry:
        if (ret < 0)
                return ret;
        if (io_aux_cqe(req, issue_flags & IO_URING_F_COMPLETE_DEFER, ret,
-                      IORING_CQE_F_MORE, true))
+                      IORING_CQE_F_MORE, false))
                goto retry;
 
        return -ECANCELED;