[dpdk-stable] [PATCH] net/i40e: fix using heap pointer after free
dapengx.yu at intel.com
dapengx.yu at intel.com
Fri Jun 4 04:02:01 CEST 2021
From: Dapeng Yu <dapengx.yu at intel.com>
The original code use a heap pointer after it is freed.
Fixes: 460d1679586e ("drivers/net: delete HW rings while freeing queues")
Cc: stable at dpdk.org
Signed-off-by: Dapeng Yu <dapengx.yu at intel.com>
---
drivers/net/i40e/i40e_fdir.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index ac0e09bfdd..3983122af7 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -301,11 +301,11 @@ i40e_fdir_teardown(struct i40e_pf *pf)
if (err)
PMD_DRV_LOG(DEBUG, "Failed to do FDIR RX switch off");
- i40e_dev_rx_queue_release(pf->fdir.rxq);
rte_eth_dma_zone_free(dev, "fdir_rx_ring", pf->fdir.rxq->queue_id);
+ i40e_dev_rx_queue_release(pf->fdir.rxq);
pf->fdir.rxq = NULL;
- i40e_dev_tx_queue_release(pf->fdir.txq);
rte_eth_dma_zone_free(dev, "fdir_tx_ring", pf->fdir.txq->queue_id);
+ i40e_dev_tx_queue_release(pf->fdir.txq);
pf->fdir.txq = NULL;
i40e_vsi_release(vsi);
pf->fdir.fdir_vsi = NULL;
--
2.27.0
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