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authorAlexander Duyck <alexander.h.duyck@intel.com>2017-02-22 02:55:41 +0300
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2017-03-28 02:45:14 +0300
commit741b8b832a57402380be79d7d11a59eaf57fff3b (patch)
treeceae0622728213e7fc1280f34ce35aa94f063365 /drivers/net/ethernet/intel/i40e
parentf25571b576c72f4bfa8b0766b4d582ee9662bcbf (diff)
downloadlinux-741b8b832a57402380be79d7d11a59eaf57fff3b.tar.xz
i40e/i40evf: Fix use after free in Rx cleanup path
We need to reset skb back to NULL when we have freed it in the Rx cleanup path. I found one spot where this wasn't occurring so this patch fixes it. Change-ID: Iaca68934200732cd4a63eb0bd83b539c95f8c4dd Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_txrx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index e5c89770cbc2..9f2c9f1b8e06 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1941,6 +1941,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
*/
if (unlikely(i40e_test_staterr(rx_desc, BIT(I40E_RXD_QW1_ERROR_SHIFT)))) {
dev_kfree_skb_any(skb);
+ skb = NULL;
continue;
}