| Message ID | 1500043291-19768-2-git-send-email-mustafa.ismail@intel.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
> Subject: [PATCH v2 1/2] RDMA/uverbs: Fix the check for port number > > The port number is only valid if IB_QP_PORT is set in the mask. > So only check port number if it is valid to prevent modify_qp from > failing due to an invalid port number. > > Fixes: 5ecce4c9b17b("Check port number supplied by user verbs cmds") > Cc: <stable@vger.kernel.org> # v2.6.14+ > Reviewed-by: Steve Wise <swise@opengridcomputing.com> > Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com> -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 8ba9bfb..19de068 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -1935,7 +1935,8 @@ static int modify_qp(struct ib_uverbs_file *file, goto out; } - if (!rdma_is_port_valid(qp->device, cmd->base.port_num)) { + if ((cmd->base.attr_mask & IB_QP_PORT) && + !rdma_is_port_valid(qp->device, cmd->base.port_num)) { ret = -EINVAL; goto release_qp; }
The port number is only valid if IB_QP_PORT is set in the mask. So only check port number if it is valid to prevent modify_qp from failing due to an invalid port number. Fixes: 5ecce4c9b17b("Check port number supplied by user verbs cmds") Cc: <stable@vger.kernel.org> # v2.6.14+ Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> --- drivers/infiniband/core/uverbs_cmd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)