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| author | Pavel Skripkin <paskripkin@gmail.com> | 2021-06-18 19:14:31 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-19 21:46:00 +0300 |
| commit | e4b8700e07a86e8eab6916aa5c5ba99042c34089 (patch) | |
| tree | a50b6eca26ec724fea75553cc5a156871ed1e7f0 /drivers/net/ethernet/ezchip | |
| parent | e3a5de6d81d8b2199935c7eb3f7d17a50a7075b7 (diff) | |
| download | linux-e4b8700e07a86e8eab6916aa5c5ba99042c34089.tar.xz | |
net: ethernet: ezchip: fix UAF in nps_enet_remove
priv is netdev private data, but it is used
after free_netdev(). It can cause use-after-free when accessing priv
pointer. So, fix it by moving free_netdev() after netif_napi_del()
call.
Fixes: 0dd077093636 ("NET: Add ezchip ethernet driver")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ezchip')
| -rw-r--r-- | drivers/net/ethernet/ezchip/nps_enet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index e3954d8835e7..20d2c2bb26e4 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -642,8 +642,8 @@ static s32 nps_enet_remove(struct platform_device *pdev) struct nps_enet_priv *priv = netdev_priv(ndev); unregister_netdev(ndev); - free_netdev(ndev); netif_napi_del(&priv->napi); + free_netdev(ndev); return 0; } |