Jens Axboe 573c5ace50 io_uring/net: save msghdr->msg_control for retries ... commit cac9e4418f upstream. If the application sets ->msg_control and we have to later retry this command, or if it got queued with IOSQE_ASYNC to begin with, then we need to retain the original msg_control value. This is due to the net stack overwriting this field with an in-kernel pointer, to copy it in. Hitting that path for the second time will now fail the copy from user, as it's attempting to copy from a non-user address. Cc: stable@vger.kernel.org # 5.10+ Link: https://github.com/axboe/liburing/issues/880 Reported-and-tested-by: Marek Majkowski <marek@cloudflare.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-06-21 16:02:09 +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: fix poll/netmsg alloc caches	2023-03-30 06:53:42 -06:00
cancel.c	io_uring/cancel: re-grab ctx mutex after finishing wait	2022-12-21 13:31:40 -07:00
cancel.h
epoll.c	io_uring: undeprecate epoll_ctl support	2023-06-09 10:48:19 +02:00
epoll.h
fdinfo.c	capability: just use a 'u64' instead of a 'u32[2]' array	2023-03-01 10:01:22 -08:00
fdinfo.h
filetable.c	io_uring/rsrc: fix null-ptr-deref in io_file_bitmap_get()	2023-03-22 11:04:55 -06:00
filetable.h	io_uring: kill hot path fixed file bitmap debug checks	2022-10-16 17:07:53 -06:00
fs.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
fs.h
io-wq.c	io_uring/io-wq: stop setting PF_NO_SETAFFINITY on io-wq workers	2023-03-08 08:48:13 -07:00
io-wq.h
io_uring.c	io_uring: complete request via task work in case of DEFER_TASKRUN	2023-04-14 06:38:23 -06:00
io_uring.h	io_uring: mark task TASK_RUNNING before handling resume/task work	2023-02-06 08:23:21 -07:00
kbuf.c	io_uring: fix memory leak when removing provided buffers	2023-04-01 16:52:12 -06:00
kbuf.h	io_uring: allow buffer recycling in READV	2022-09-21 10:30:43 -06:00
Makefile
msg_ring.c	io_uring/msg_ring: let target know allocated index	2023-03-16 07:16:56 -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: save msghdr->msg_control for retries	2023-06-21 16:02:09 +02:00
net.h	io_uring/net: zerocopy sendmsg	2022-09-21 13:15:02 -06:00
nop.c
nop.h
notif.c	io_uring: refactor req allocation	2023-01-29 15:17:41 -07:00
notif.h	io_uring: move zc reporting from the hot path	2022-11-21 07:38:31 -07:00
opdef.c	io_uring,audit: don't log IORING_OP_MADVISE	2023-02-10 16:00:30 -07:00
opdef.h	io_uring: Split io_issue_def struct	2023-01-29 15:17:41 -07:00
openclose.c	io_uring: always go async for unsupported open flags	2023-01-29 15:18:26 -07:00
openclose.h
poll.c	io_uring/poll: clear single/double poll flags on poll arming	2023-03-28 07:09:01 -06:00
poll.h	io_uring/poll: allow some retries for poll triggering spuriously	2023-02-25 20:10:13 -07:00
refs.h
rsrc.c	io_uring/rsrc: check for nonconsecutive pages	2023-05-11 23:17:38 +09:00
rsrc.h	io_uring/rsrc: fix rogue rsrc node grabbing	2023-03-29 09:23:46 -06:00
rw.c	for-6.3/iter-ubuf-2023-02-16	2023-02-20 14:03:57 -08:00
rw.h	io_uring/rw: don't lose partial IO result on fail	2022-09-21 13:15:02 -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: for requests that require async, force it	2023-01-29 15:18:26 -07:00
splice.h
sqpoll.c	io_uring: unlock sqd->lock before sq thread release CPU	2023-06-21 16:02:07 +02:00
sqpoll.h	io_uring: make io_sqpoll_wait_sq return void	2023-01-29 15:17:40 -07:00
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: rename 'in_idle' to 'in_cancel'	2023-02-22 09:57:23 -07:00
tctx.h	io_uring: simplify __io_uring_add_tctx_node	2022-10-07 12:25:30 -06:00
timeout.c	io_uring: ease timeout flush locking requirements	2022-12-14 08:53:35 -07:00
timeout.h	io_uring: remove unused return from io_disarm_next	2022-09-21 13:15:01 -06:00
uring_cmd.c	block-6.3-2023-03-24	2023-03-24 14:10:39 -07:00
uring_cmd.h
xattr.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
xattr.h