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io_uring/net: don't overflow multishot accept
author
Pavel Begunkov
<asml.silence@gmail.com>
Tue, 12 Sep 2023 13:57:05 +0000
(14:57 +0100)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Tue, 19 Sep 2023 10:27:54 +0000
(12:27 +0200)
[ 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>
io_uring/net.c
patch
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diff --git
a/io_uring/net.c
b/io_uring/net.c
index
00b4433
..
7245218
100644
(file)
--- 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,
tru
e))
+ if (io_post_aux_cqe(ctx, req->cqe.user_data, ret, IORING_CQE_F_MORE,
fals
e))
goto retry;
return -ECANCELED;