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2f2fee2bf74a7e31d06fc6cb7ba2bd4dd7753c99
linux/io_uring
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Pavel Begunkov 69db702c83 io_uring/af_unix: disable sending io_uring over sockets 
File reference cycles have caused lots of problems for io_uring
in the past, and it still doesn't work exactly right and races with
unix_stream_read_generic(). The safest fix would be to completely
disallow sending io_uring files via sockets via SCM_RIGHT, so there
are no possible cycles invloving registered files and thus rendering
SCM accounting on the io_uring side unnecessary.

Cc: stable@vger.kernel.org
Fixes: 0091bfc817 ("io_uring/af_unix: defer registered files gc to io_uring release")
Reported-and-suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-09 21:20:33 +00:00
..
advise.c
io_uring: always go async for unsupported fadvise flags
2023-01-29 15:18:26 -07:00
advise.h
io_uring: split out fadvise/madvise operations
2022-07-24 18:39:11 -06:00
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
2023-11-28 11:56:29 -07:00
cancel.h
io_uring: add support for futex wake and wait
2023-09-29 02:36:57 -06:00
epoll.c
io_uring: undeprecate epoll_ctl support
2023-05-26 20:22:41 -06:00
epoll.h
io_uring: move epoll handler to its own file
2022-07-24 18:39:11 -06:00
fdinfo.c
io_uring/fdinfo: remove need for sqpoll lock for thread/pid retrieval
2023-11-15 06:35:46 -07:00
fdinfo.h
io_uring: move fdinfo helpers to its own file
2022-07-24 18:39:12 -06:00
filetable.c
io_uring: add helpers to decode the fixed file file_ptr
2023-06-20 09:36:22 -06:00
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
2023-11-20 09:01:42 -07:00
fs.h
io_uring: split out filesystem related operations
2022-07-24 18:39:11 -06:00
futex.c
io_uring: add support for vectored futex waits
2023-09-29 02:37:08 -06:00
futex.h
io_uring: add support for vectored futex waits
2023-09-29 02:37:08 -06:00
io_uring.c
io_uring: use fget/fput consistently
2023-11-28 11:56:29 -07:00
io_uring.h
io_uring: enable io_mem_alloc/free to be used in other parts
2023-11-27 20:53:52 -07:00
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: free io_buffer_list entries via RCU
2023-11-28 11:45:02 -07:00
kbuf.h
io_uring: free io_buffer_list entries via RCU
2023-11-28 11:45:02 -07:00
Makefile
io_uring: add support for futex wake and wait
2023-09-29 02:36:57 -06:00
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: ensure socket is marked connected on connect retry
2023-11-03 13:25:50 -06:00
net.h
io_uring: Add KASAN support for alloc_caches
2023-04-03 07:16:14 -06:00
nop.c
io_uring: kill extra io_uring_types.h includes
2022-07-24 18:39:14 -06:00
nop.h
io_uring: move nop into its own file
2022-07-24 18:39:11 -06:00
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/rw: add separate prep handler for fixed read/write
2023-11-06 07:43:16 -07:00
opdef.h
io_uring/rw: mark readv/writev as vectored in the opcode definition
2023-09-21 12:00:46 -06:00
openclose.c
io_uring: use files_lookup_fd_locked()
2023-10-19 11:02:49 +02:00
openclose.h
io_uring: split out fixed file installation and removal
2022-07-24 18:39:16 -06:00
poll.c
io_uring/poll: use IOU_F_TWQ_LAZY_WAKE for wakeups
2023-10-19 06:42:29 -06:00
poll.h
io_uring: avoid indirect function calls for the hottest task_work
2023-06-02 08:55:37 -06:00
refs.h
io_uring: make io_uring_types.h public
2022-07-24 18:39:14 -06:00
rsrc.c
io_uring: fix off-by one bvec index
2023-11-20 15:21:38 -07:00
rsrc.h
io_uring/af_unix: disable sending io_uring over sockets
2023-12-09 21:20:33 +00:00
rw.c
io_uring: do not clamp read length for multishot read
2023-11-06 13:41:58 -07:00
rw.h
io_uring/rw: add separate prep handler for fixed read/write
2023-11-06 07:43:16 -07:00
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
io_uring: split out splice related operations
2022-07-24 18:39:11 -06:00
sqpoll.c
io_uring/fdinfo: remove need for sqpoll lock for thread/pid retrieval
2023-11-15 06:35:46 -07:00
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
io_uring: move statx handling to its own file
2022-07-24 18:39:11 -06:00
sync.c
io_uring: for requests that require async, force it
2023-01-29 15:18:26 -07:00
sync.h
io_uring: split out fs related sync/fallocate functions
2022-07-24 18:39:11 -06:00
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: Introduce SOCKET_URING_OP_SETSOCKOPT
2023-10-19 16:42:03 -06:00
uring_cmd.h
io_uring: Remove unnecessary BUILD_BUG_ON
2023-05-04 08:19:05 -06:00
waitid.c
io_uring: add IORING_OP_WAITID support
2023-09-21 12:04:45 -06:00
waitid.h
io_uring: add IORING_OP_WAITID support
2023-09-21 12:04:45 -06:00
xattr.c
io_uring: for requests that require async, force it
2023-01-29 15:18:26 -07:00
xattr.h
io_uring: move xattr related opcodes to its own file
2022-07-24 18:39:11 -06:00