From: Sergey Nemov <[email protected]> commit 7015ca3df965378bcef072cca9cd63ed098665b5 upstream.
Field num_vectors from struct virtchnl_iwarp_qvlist_info should not be larger than num_msix_vectors_vf in the hw struct. The iwarp uses the same set of vectors as the LAN VF driver. Signed-off-by: Sergey Nemov <[email protected]> Tested-by: Andrew Bowers <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -419,6 +419,16 @@ static int i40e_config_iwarp_qvlist(stru u32 next_q_idx, next_q_type; u32 msix_vf, size; + msix_vf = pf->hw.func_caps.num_msix_vectors_vf; + + if (qvlist_info->num_vectors > msix_vf) { + dev_warn(&pf->pdev->dev, + "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", + qvlist_info->num_vectors, + msix_vf); + goto err; + } + size = sizeof(struct virtchnl_iwarp_qvlist_info) + (sizeof(struct virtchnl_iwarp_qv_info) * (qvlist_info->num_vectors - 1));
