Pavel Begunkov 3fe1ea5f92 io_uring/af_unix: disable sending io_uring over sockets ... commit 705318a99a upstream. 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> Link: https://lore.kernel.org/r/c716c88321939156909cfa1bd8b0faaf1c804103.1701868795.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-12-13 18:27:06 +01:00
..
io-wq.c	io_uring: break out of iowq iopoll on teardown	2023-09-19 12:20:23 +02:00
io-wq.h	io_uring: break out of iowq iopoll on teardown	2023-09-19 12:20:23 +02:00
io_uring.c	io_uring/af_unix: disable sending io_uring over sockets	2023-12-13 18:27:06 +01:00
Makefile