Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 741b8b83 authored by Alexander Duyck's avatar Alexander Duyck Committed by Jeff Kirsher
Browse files

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: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent f25571b5

drivers/net/ethernet/intel/i40e/i40e_txrx.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

		}

drivers/net/ethernet/intel/i40evf/i40e_txrx.c

+1 −0
Original line number Diff line number Diff line
@@ -1299,6 +1299,7 @@ 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;

		}