diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-12-06 13:55:19 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-12-09 21:20:33 +0000 |
| commit | 69db702c83874fbaa2a51af761e35a8e5a593b95 (patch) | |
| tree | 4083f92ab0c7a2606d971b152d0d33c8c266feb9 /tools/testing/selftests/bpf/prog_tests/recursion.c | |
| parent | 15319a4e8ee4b098118591c6ccbd17237f841613 (diff) | |
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: 0091bfc81741b ("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>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/recursion.c')
0 files changed, 0 insertions, 0 deletions