From: Pavel Skripkin paskripkin@gmail.com
commit 0336f8ffece62f882ab3012820965a786a983f70 upstream.
priv is netdev private data and it cannot be used after free_netdev() call. Using priv after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
Fixes: 1e0a8b13d355 ("tlan: cancel work at remove path") Signed-off-by: Pavel Skripkin paskripkin@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/ti/tlan.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/ethernet/ti/tlan.c +++ b/drivers/net/ethernet/ti/tlan.c @@ -313,9 +313,8 @@ static void tlan_remove_one(struct pci_d pci_release_regions(pdev); #endif
- free_netdev(dev); - cancel_work_sync(&priv->tlan_tqueue); + free_netdev(dev); }
static void tlan_start(struct net_device *dev)