diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-06-23 09:04:13 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-06-30 14:15:39 -0600 |
| commit | ed7eb2592286ead7d3bfdf8adf65e65392167cc4 (patch) | |
| tree | 3c4eb84996a921f2dce86d31c5ceb03513cc4aad /fs/io_uring.c | |
| parent | 12dcb58ac785ee678f577e1502d966b538375aae (diff) | |
io_uring: add IOPOLL and reserved field checks to IORING_OP_RENAMEAT
We can't support IOPOLL with non-pollable request types, and we should
check for unused/reserved fields like we do for other request types.
Fixes: 80a261fd0032 ("io_uring: add support for IORING_OP_RENAMEAT")
Cc: stable@vger.kernel.org
Reported-by: Dmitry Kadashev <dkadashev@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index d7a68a2f2ec6..02eda0575c56 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -3463,6 +3463,10 @@ static int io_renameat_prep(struct io_kiocb *req, struct io_rename *ren = &req->rename; const char __user *oldf, *newf; + if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) + return -EINVAL; + if (sqe->ioprio || sqe->buf_index) + return -EINVAL; if (unlikely(req->flags & REQ_F_FIXED_FILE)) return -EBADF; |