This is a note to let you know that I've just added the patch titled
io_uring/net: don't overflow multishot accept
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
io_uring-net-don-t-overflow-multishot-accept.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1bfed23349716a7811645336a7ce42c4b8f250bc Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@xxxxxxxxx>
Date: Fri, 11 Aug 2023 13:53:41 +0100
Subject: io_uring/net: don't overflow multishot accept
From: Pavel Begunkov <asml.silence@xxxxxxxxx>
commit 1bfed23349716a7811645336a7ce42c4b8f250bc upstream.
Don't allow overflowing multishot accept CQEs, we want to limit
the grows of the overflow list.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 4e86a2c980137 ("io_uring: implement multishot mode for accept")
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
Link: https://lore.kernel.org/r/7d0d749649244873772623dd7747966f516fe6e2.1691757663.git.asml.silence@xxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
io_uring/net.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -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;
Patches currently in stable-queue which might be from asml.silence@xxxxxxxxx are
queue-6.5/io_uring-net-don-t-overflow-multishot-recv.patch
queue-6.5/io_uring-net-don-t-overflow-multishot-accept.patch
queue-6.5/io_uring-fix-drain-stalls-by-invalid-sqe.patch
queue-6.5/io_uring-break-out-of-iowq-iopoll-on-teardown.patch
queue-6.5/io_uring-fix-false-positive-kasan-warnings.patch
queue-6.5/io_uring-break-iopolling-on-signal.patch
