| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 11/48] i40e: Fix a potential NULL pointer dereference | Date | Mon, 9 Nov 2020 13:55:20 +0100 |
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From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
commit 54902349ee95045b67e2f0c39b75f5418540064b upstream.
If 'kzalloc()' fails, a NULL pointer will be dereferenced. Return an error code (-ENOMEM) instead.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -423,6 +423,9 @@ static int i40e_config_iwarp_qvlist(stru (sizeof(struct virtchnl_iwarp_qv_info) * (qvlist_info->num_vectors - 1)); vf->qvlist_info = kzalloc(size, GFP_KERNEL); + if (!vf->qvlist_info) + return -ENOMEM; + vf->qvlist_info->num_vectors = qvlist_info->num_vectors; msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
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