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io_uring/timeout: check unused sqe fields

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commit 484ae637a3 upstream.

Zero check unused SQE fields addr3 and pad2 for timeout and timeout
update requests. They're not needed now, but could be used sometime
in the future.

Cc: stable@vger.kernel.org
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>
This commit is contained in:
Pavel Begunkov
2026-03-02 13:10:34 +00:00
committed by Greg Kroah-Hartman
parent 08bad87847
commit 29ae5568ae
1 changed files with 4 additions and 0 deletions
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io_uring/timeout.c
+4
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@@ -424,6 +424,8 @@ int io_timeout_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT)))
return -EINVAL;
if (sqe->addr3 || sqe->__pad2[0])
return -EINVAL;
if (sqe->buf_index || sqe->len || sqe->splice_fd_in)
return -EINVAL;
@@ -496,6 +498,8 @@ static int __io_timeout_prep(struct io_kiocb *req,
unsigned flags;
u32 off = READ_ONCE(sqe->off);
if (sqe->addr3 || sqe->__pad2[0])
return -EINVAL;
if (sqe->buf_index || sqe->len != 1 || sqe->splice_fd_in)
return -EINVAL;
if (off && is_timeout_link)