From 32d4686224744819ddcae58b666c21d2a4ef4c88 Mon Sep 17 00:00:00 2001 From: Pavel Skripkin Date: Tue, 16 Nov 2021 18:17:12 +0300 Subject: [PATCH] net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove [ Upstream commit 9b5a333272a48c2f8b30add7a874e46e8b26129c ] Access to netdev after free_netdev() will cause use-after-free bug. Move debug log before free_netdev() call to avoid it. Fixes: 7472dd9f6499 ("staging: fsl-dpaa2/eth: Move print message") Signed-off-by: Pavel Skripkin Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index 7065c71ed7b8..f3e443f2d9cf 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -4538,10 +4538,10 @@ static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev) fsl_mc_portal_free(priv->mc_io); - free_netdev(net_dev); - dev_dbg(net_dev->dev.parent, "Removed interface %s\n", net_dev->name); + free_netdev(net_dev); + return 0; }