Re: [PATCH v2] infiniband: Fix a use after free in isert_connect_request

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On Mon, Mar 22, 2021 at 09:13:25AM -0700, Lv Yunlong wrote:
> The device is got by isert_device_get() with refcount is 1,
> and is assigned to isert_conn by isert_conn->device = device.
> When isert_create_qp() failed, device will be freed with
> isert_device_put().
> 
> Later, the device is used in isert_free_login_buf(isert_conn)
> by the isert_conn->device->ib_device statement. This patch
> free the device in the correct order.
> 
> Signed-off-by: Lv Yunlong <lyl2019@xxxxxxxxxxxxxxxx>
> ---
>  drivers/infiniband/ulp/isert/ib_isert.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 

Thanks,
Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>



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