From: Pavel Begunkov <asml.silence@gmail.com>
Date: Tue, 12 Sep 2023 13:57:05 +0000 (+0100)
Subject: io_uring/net: don't overflow multishot accept
X-Git-Tag: v6.1.61~1190
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b04f22b68643d35b3e0823ea92295b203ef83bf3;p=platform%2Fkernel%2Flinux-starfive.git

io_uring/net: don't overflow multishot accept

[ upstream commit 1bfed23349716a7811645336a7ce42c4b8f250bc ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/io_uring/net.c b/io_uring/net.c
index 00b4433..7245218 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -1339,7 +1339,7 @@ retry:
 
 	if (ret < 0)
 		return ret;
-	if (io_post_aux_cqe(ctx, req->cqe.user_data, ret, IORING_CQE_F_MORE, true))
+	if (io_post_aux_cqe(ctx, req->cqe.user_data, ret, IORING_CQE_F_MORE, false))
 		goto retry;
 
 	return -ECANCELED;