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| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-02-23 20:22:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-25 11:43:58 +0300 |
| commit | dc7bdc1f2d9c9d73644ba65c6802328681e3a23f (patch) | |
| tree | 89624046fa3e89591f72fb53a1f667c44a7bf886 /io_uring/net.c | |
| parent | b8acdc413fd83134c96667af8b09bd5c481938e0 (diff) | |
| download | linux-dc7bdc1f2d9c9d73644ba65c6802328681e3a23f.tar.xz | |
io_uring/net: fix accept multishot handling
Commit f6a89bf5278d6e15016a736db67043560d1b50d5 upstream.
REQ_F_APOLL_MULTISHOT doesn't guarantee it's executed from the multishot
context, so a multishot accept may get executed inline, fail
io_req_post_cqe(), and ask the core code to kill the request with
-ECANCELED by returning IOU_STOP_MULTISHOT even when a socket has been
accepted and installed.
Cc: stable@vger.kernel.org
Fixes: 390ed29b5e425 ("io_uring: add IORING_ACCEPT_MULTISHOT for accept")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/51c6deb01feaa78b08565ca8f24843c017f5bc80.1740331076.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'io_uring/net.c')
| -rw-r--r-- | io_uring/net.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index d56e8a47e50f..898990e71367 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -1391,6 +1391,8 @@ retry: goto retry; io_req_set_res(req, ret, 0); + if (!(issue_flags & IO_URING_F_MULTISHOT)) + return IOU_OK; return IOU_STOP_MULTISHOT; } |