Pavel Begunkov dc7bdc1f2d io_uring/net: fix accept multishot handling ...

Commit f6a89bf527 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: 390ed29b5e ("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>

2025-04-25 10:43:58 +02:00

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advise.c

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advise.h

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alloc_cache.h

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cancel.c

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cancel.h

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epoll.c

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epoll.h

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fdinfo.c

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fdinfo.h

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filetable.c

io_uring/filetable: ensure node switch is always done, if needed

2025-04-10 14:33:41 +02:00

filetable.h

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fs.c

io_uring/fs: consider link->flags when getting path for LINKAT

2023-12-03 07:32:11 +01:00

fs.h

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io_uring.c

io_uring: fix corner case forgetting to vunmap

2025-03-28 21:58:53 +01:00

io_uring.h

io_uring: get rid of remap_pfn_range() for mapping rings/sqes

2025-03-28 21:58:53 +01:00

io-wq.c

io_uring/io-wq: inherit cpuset of cgroup in io worker

2024-10-17 15:21:14 +02:00

io-wq.h

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kbuf.c

io_uring/kbuf: reject zero sized provided buffers

2025-04-25 10:43:39 +02:00

kbuf.h

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Makefile

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msg_ring.c

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msg_ring.h

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net.c

io_uring/net: fix accept multishot handling

2025-04-25 10:43:58 +02:00

net.h

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nop.c

io_uring: fail NOP if non-zero op flags is passed in

2024-06-12 11:02:55 +02:00

nop.h

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notif.c

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notif.h

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opdef.c

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opdef.h

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openclose.c

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openclose.h

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poll.c

io_uring: fix multishots with selected buffers

2025-02-21 13:49:53 +01:00

poll.h

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refs.h

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rsrc.c

io_uring: drop any code related to SCM_RIGHTS

2024-03-26 18:20:22 -04:00

rsrc.h

io_uring: drop any code related to SCM_RIGHTS

2024-03-26 18:20:22 -04:00

rw.c

io_uring/rw: commit provided buffer state on async

2025-02-21 13:49:53 +01:00

rw.h

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slist.h

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splice.c

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splice.h

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sqpoll.c

io_uring/sqpoll: fix sqpoll error handling races

2025-01-02 10:30:54 +01:00

sqpoll.h

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statx.c

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statx.h

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sync.c

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sync.h

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tctx.c

io_uring/tctx: work around xa_store() allocation error issue

2024-12-14 19:54:49 +01:00

tctx.h

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timeout.c

io_uring: fix io_match_task must_hold

2024-08-03 08:49:53 +02:00

timeout.h

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uring_cmd.c

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uring_cmd.h

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xattr.c

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xattr.h

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