On Wed, Jan 20, 2021 at 07:24:41PM +0900, Vincent Mailhol wrote: > After calling netif_rx_ni(skb), dereferencing skb is unsafe. > Especially, the can_frame cf which aliases skb memory is accessed > after the netif_rx_ni() in: > stats->rx_bytes += cf->len; > > Reordering the lines solves the issue. > > *Remark for upstream* > drivers/net/can/dev.c has been moved to drivers/net/can/dev/dev.c in > below commit, please carry the patch forward. > Reference: 3e77f70e7345 ("can: dev: move driver related infrastructure > into separate subdir") Put these sorts of comments under the --- so that they aren't included in the permanent git log. > > Fixes: 39549eef3587 ("can: CAN Network device driver and Netlink interface") > Signed-off-by: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx> > --- ^^^ comment below this line are removed from the git log. > drivers/net/can/dev.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > regards, dan carpenter