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Pavel Begunkov 1241052e15 io_uring: clean rings on NO_MMAP alloc fail 
[ Upstream commit cef59d1ea7170ec753182302645a0191c8aa3382 ]

We make a few cancellation judgements based on ctx->rings, so let's
zero it afer deallocation for IORING_SETUP_NO_MMAP just like it's
done with the mmap case. Likely, it's not a real problem, but zeroing
is safer and better tested.

Cc: stable@vger.kernel.org
Fixes: 03d89a2de25bbc ("io_uring: support for user allocated memory for rings/sqes")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9ff6cdf91429b8a51699c210e1f6af6ea3f8bdcf.1710255382.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-03 15:28:31 +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: clean rings on NO_MMAP alloc fail
2024-04-03 15:28:31 +02:00
io_uring.h
io_uring/unix: drop usage of io_uring socket
2024-03-26 18:19:09 -04:00
io-wq.c
io-wq: fully initialize wqe before calling cpuhp_state_add_instance_nocalls()
2023-10-05 14:11:18 -06:00
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: check for buffer list readiness after NULL check
2023-12-13 18:45:17 +01:00
kbuf.h
io_uring/kbuf: defer release of mapped buffer rings
2023-12-08 08:52:20 +01:00
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: fix mshot io-wq checks
2024-04-03 15:28:29 +02:00
net.h
io_uring: Add KASAN support for alloc_caches
2023-04-03 07:16:14 -06:00
nop.c
…
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: fix poll_remove stalled req completion
2024-03-26 18:20:09 -04:00
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: drop any code related to SCM_RIGHTS
2024-03-26 18:19:09 -04:00
rsrc.h
io_uring: drop any code related to SCM_RIGHTS
2024-03-26 18:19:09 -04:00
rw.c
io_uring/rw: ensure io->bytes_done is always initialized
2024-01-25 15:35:45 -08:00
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/fdinfo: remove need for sqpoll lock for thread/pid retrieval
2023-11-28 17:19:52 +00:00
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: Add io_uring_setup flag to pre-register ring fd and never install it
2023-05-16 08:06:00 -06:00
tctx.h
io_uring: simplify __io_uring_add_tctx_node
2022-10-07 12:25:30 -06:00
timeout.c
io_uring: never overflow io_aux_cqe
2023-08-11 10:42:57 -06:00
timeout.h
io_uring: remove unused return from io_disarm_next
2022-09-21 13:15:01 -06:00
uring_cmd.c
io_uring/cmd: fix breakage in SOCKET_URING_OP_SIOC* implementation
2023-12-20 17:01:52 +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
…