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| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-01-20 19:38:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-01 10:34:35 +0300 |
| commit | c932501bc232985f2c5580f52cc9a799e168900b (patch) | |
| tree | ebd9409248e1d308694d9ceba3c204d2b8975c1b /net/mac80211 | |
| parent | 3964b0c2e843334858da99db881859faa4df241d (diff) | |
| download | linux-c932501bc232985f2c5580f52cc9a799e168900b.tar.xz | |
io_uring/msg_ring: fix remote queue to disabled ring
commit 8579538c89e33ce78be2feb41e07489c8cbf8f31 upstream.
IORING_SETUP_R_DISABLED rings don't have the submitter task set, so
it's not always safe to use ->submitter_task. Disallow posting msg_ring
messaged to disabled rings. Also add task NULL check for loosy sync
around testing for IORING_SETUP_R_DISABLED.
Cc: stable@vger.kernel.org
Fixes: 6d043ee1164ca ("io_uring: do msg_ring in target task via tw")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mac80211')
0 files changed, 0 insertions, 0 deletions