On Thu, Feb 01, 2018 at 12:31:06PM -0800, Dennis Dalessandro wrote:
> From: Michael J. Ruhl <michael.j.ruhl@xxxxxxxxx>
>
> The ev_file is an optional parameter for CQ creation. If the parameter
> is not passed, the ev_file pointer will be NULL. Using that pointer
> to set the cq_context will result in an OOPs.
>
> Verify that ev_file is not NULL before using.
>
> Cc: <stable@xxxxxxxxxxxxxxx> # 4.14.x
> Fixes: 9ee79fce3642 ("IB/core: Add completion queue (cq) object actions")
> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
> Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@xxxxxxxxx>
> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
> drivers/infiniband/core/uverbs_std_types.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
Yep! I was testing this recently and didn't hit this bug, it only
becomes a crash if something tries to use the cq..
Jason