[ Upstream commite925e0cd2a] ugeth is the netdiv_priv() part of the netdevice. Accessing the memory pointed to by ugeth (such as done by ucc_geth_memclean() and the two of_node_puts) after free_netdev() is thus use-after-free. Fixes:80a9fad8e8("ucc_geth: fix module removal") Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>