From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Date: Tue, 8 Jan 2019 23:27:06 +0000
> 'dev' is non NULL when the addr_len check triggers so it must goto a label
> that does the dev_put otherwise dev will have a leaked refcount.
>
> This bug causes the ib_ipoib module to become unloadable when using
> systemd-network as it triggers this check on InfiniBand links.
>
> Fixes: 99137b7888f4 ("packet: validate address length")
> Reported-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Applied and queued up for -stable, thanks.
