Commit dddb3e26 authored by Jens Axboe's avatar Jens Axboe
Browse files

io_uring: re-set iov base/len for buffer select retry 



We already have the buffer selected, but we should set the iter list
again.

Cc: stable@vger.kernel.org # v5.7
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent d2b6f48b

fs/io_uring.c

+7 −1
Original line number Diff line number Diff line
@@ -2363,8 +2363,14 @@ static ssize_t __io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov, 
static ssize_t io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov,

				    bool needs_lock)

{

	if (req->flags & REQ_F_BUFFER_SELECTED)

	if (req->flags & REQ_F_BUFFER_SELECTED) {

		struct io_buffer *kbuf;



		kbuf = (struct io_buffer *) (unsigned long) req->rw.addr;

		iov[0].iov_base = u64_to_user_ptr(kbuf->addr);

		iov[0].iov_len = kbuf->len;

		return 0;

	}

	if (!req->rw.len)

		return 0;

	else if (req->rw.len > 1)