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From: Beilei Xing <beilei.xing@intel.com>
To: jingjing.wu@intel.com, michalx.k.jastrzebski@intel.com
Cc: dev@dpdk.org, Beilei Xing <beilei.xing@intel.com>
Date: Tue, 5 Jul 2016 14:10:05 +0800
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Subject: [dpdk-dev] [PATCH v2 3/3] i40e: fix out-of-bounds access
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When calling i40e_flowtype_to_pctype in
i40e_get_hash_filter_global_config and
i40e_set_hash_filter_global_config, function
i40e_flowtype_to_pctype will be possibly
out-of-bounds accessed, because size of callee's array
is 15. So judge flow type before calling
i40e_flowtype_to_pctype.
Meanwhile do the same change in other functions.
Coverity issue: 37793, 37794
Fixes: 782c8c92f13f ("i40e: add hash configuration")
Fixes: f2b2e2354bbd ("i40e: split function for hash and flow director input")
Fixes: 98f055707685 ("i40e: configure input fields for RSS or flow director")
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index a1cad37..111a552 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -6908,6 +6908,9 @@ i40e_get_hash_filter_global_config(struct i40e_hw *hw,
mask &= ~(1UL << i);
/* Bit set indicats the coresponding flow type is supported */
g_cfg->valid_bit_mask[0] |= (1UL << i);
+ /* if flowtype is invalid, continue */
+ if (!I40E_VALID_FLOW(i))
+ continue;
pctype = i40e_flowtype_to_pctype(i);
reg = i40e_read_rx_ctl(hw, I40E_GLQF_HSYM(pctype));
if (reg & I40E_GLQF_HSYM_SYMH_ENA_MASK)
@@ -6979,6 +6982,9 @@ i40e_set_hash_filter_global_config(struct i40e_hw *hw,
if (!(mask0 & (1UL << i)))
continue;
mask0 &= ~(1UL << i);
+ /* if flowtype is invalid, continue */
+ if (!I40E_VALID_FLOW(i))
+ continue;
pctype = i40e_flowtype_to_pctype(i);
reg = (g_cfg->sym_hash_enable_mask[0] & (1UL << i)) ?
I40E_GLQF_HSYM_SYMH_ENA_MASK : 0;
@@ -7541,13 +7547,11 @@ i40e_hash_filter_inset_select(struct i40e_hw *hw,
return -EINVAL;
}
- pctype = i40e_flowtype_to_pctype(conf->flow_type);
- if (pctype == 0 || pctype > I40E_FILTER_PCTYPE_L2_PAYLOAD) {
- PMD_DRV_LOG(ERR, "Not supported flow type (%u)",
- conf->flow_type);
+ if (!I40E_VALID_FLOW(conf->flow_type)) {
+ PMD_DRV_LOG(ERR, "invalid flow_type input.");
return -EINVAL;
}
-
+ pctype = i40e_flowtype_to_pctype(conf->flow_type);
ret = i40e_parse_input_set(&input_set, pctype, conf->field,
conf->inset_size);
if (ret) {
@@ -7612,12 +7616,11 @@ i40e_fdir_filter_inset_select(struct i40e_pf *pf,
return -EINVAL;
}
- pctype = i40e_flowtype_to_pctype(conf->flow_type);
- if (pctype == 0 || pctype > I40E_FILTER_PCTYPE_L2_PAYLOAD) {
- PMD_DRV_LOG(ERR, "Not supported flow type (%u)",
- conf->flow_type);
+ if (!I40E_VALID_FLOW(conf->flow_type)) {
+ PMD_DRV_LOG(ERR, "invalid flow_type input.");
return -EINVAL;
}
+ pctype = i40e_flowtype_to_pctype(conf->flow_type);
ret = i40e_parse_input_set(&input_set, pctype, conf->field,
conf->inset_size);
if (ret) {
--
2.5.0