Pavel Begunkov 7e2449ee66 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: 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 10:45:54 +02:00

..

advise.c

io_uring: always go async for unsupported fadvise flags

2023-01-29 15:18:26 -07:00

advise.h

…

alloc_cache.h

io_uring/rsrc: consolidate node caching

2023-04-12 12:09:41 -06:00

cancel.c

io_uring: use fget/fput consistently

2024-01-20 11:51:38 +01:00

cancel.h

io_uring/cancel: support opcode based lookup and cancelation

2023-07-17 10:05:48 -06:00

epoll.c

io_uring: undeprecate epoll_ctl support

2023-05-26 20:22:41 -06:00

epoll.h

…

fdinfo.c

io_uring/fdinfo: remove need for sqpoll lock for thread/pid retrieval

2023-11-28 17:19:52 +00:00

fdinfo.h

…

filetable.c

io_uring: drop any code related to SCM_RIGHTS

2024-03-26 18:19:09 -04:00

filetable.h

io_uring: add helpers to decode the fixed file file_ptr

2023-06-20 09:36:22 -06:00

fs.c

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

2023-12-03 07:33:07 +01:00

fs.h

…

io_uring.c

io_uring/kbuf: use vm_insert_pages() for mmap'ed pbuf ring

2025-03-22 12:50:45 -07:00

io_uring.h

io_uring/kbuf: use vm_insert_pages() for mmap'ed pbuf ring

2025-03-22 12:50:45 -07:00

io-wq.c

io-wq: backoff when retrying worker creation

2025-03-22 12:50:43 -07:00

io-wq.h

io_uring: break out of iowq iopoll on teardown

2023-09-07 09:02:27 -06:00

kbuf.c

io_uring/kbuf: reject zero sized provided buffers

2025-04-25 10:45:26 +02:00

kbuf.h

io_uring/kbuf: use vm_insert_pages() for mmap'ed pbuf ring

2025-03-22 12:50:45 -07:00

Makefile

…

msg_ring.c

io_uring: use io_file_from_index in io_msg_grab_file

2023-06-20 09:36:22 -06:00

msg_ring.h

io_uring: get rid of double locking

2022-12-07 06:47:13 -07:00

net.c

io_uring/net: fix accept multishot handling

2025-04-25 10:45:54 +02:00

net.h

io_uring: Add KASAN support for alloc_caches

2023-04-03 07:16:14 -06:00

nop.c

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

2024-06-12 11:11:18 +02:00

nop.h

…

notif.c

io_uring/notif: add constant for ubuf_info flags

2023-04-15 14:21:04 -06:00

notif.h

io_uring/notif: add constant for ubuf_info flags

2023-04-15 14:21:04 -06:00

opdef.c

io_uring: Pass whole sqe to commands

2023-05-04 08:19:05 -06:00

opdef.h

io_uring: Split io_issue_def struct

2023-01-29 15:17:41 -07:00

openclose.c

io_uring: correct check for O_TMPFILE

2023-08-07 12:34:23 -06:00

openclose.h

…

poll.c

io_uring/net: don't retry connect operation on EPOLLERR

2025-02-17 09:40:36 +01:00

poll.h

io_uring: avoid indirect function calls for the hottest task_work

2023-06-02 08:55:37 -06:00

refs.h

…

rsrc.c

io_uring: unify io_pin_pages()

2025-03-22 12:50:45 -07:00

rsrc.h

io_uring: drop any code related to SCM_RIGHTS

2024-03-26 18:19:09 -04:00

rw.c

io_uring/rw: commit provided buffer state on async

2025-02-17 09:40:37 +01:00

rw.h

io_uring: avoid indirect function calls for the hottest task_work

2023-06-02 08:55:37 -06:00

slist.h

io_uring: silence variable ‘prev’ set but not used warning

2023-03-09 10:10:58 -07:00

splice.c

io_uring/splice: use fput() directly

2023-08-10 10:24:25 -06:00

splice.h

…

sqpoll.c

io_uring/sqpoll: fix sqpoll error handling races

2025-01-02 10:32:10 +01:00

sqpoll.h

io_uring/sqpoll: fix io-wq affinity when IORING_SETUP_SQPOLL is used

2023-08-16 13:40:28 -06:00

statx.c

io_uring: for requests that require async, force it

2023-01-29 15:18:26 -07:00

statx.h

…

sync.c

io_uring: for requests that require async, force it

2023-01-29 15:18:26 -07:00

sync.h

…

tctx.c

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

2024-12-14 20:00:17 +01:00

tctx.h

io_uring: simplify __io_uring_add_tctx_node

2022-10-07 12:25:30 -06:00

timeout.c

io_uring/timeout: fix multishot updates

2025-01-17 13:36:19 +01:00

timeout.h

io_uring: remove unused return from io_disarm_next

2022-09-21 13:15:01 -06:00

uring_cmd.c

io_uring/uring_cmd: use cached cmd_op in io_uring_cmd_sock()

2025-02-08 09:52:33 +01:00

uring_cmd.h

io_uring: Remove unnecessary BUILD_BUG_ON

2023-05-04 08:19:05 -06:00

xattr.c

io_uring: for requests that require async, force it

2023-01-29 15:18:26 -07:00

xattr.h

…