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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2017-08-07 00:37:01 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-11-18 20:26:25 +0300
commit8f29881eb732ca087069fcc8f65ffa316fc63185 (patch)
treef439e9abf59714ab603e58e515563c9f9450c13c /drivers/net
parent77440c3a37203e3f4667d06e37f76ef3968d2d8c (diff)
downloadlinux-8f29881eb732ca087069fcc8f65ffa316fc63185.tar.xz
i40e: Fix a potential NULL pointer dereference
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: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 7484ad3c955d..0f54269ffc46 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -422,6 +422,9 @@ static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
(sizeof(struct i40e_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;