[PATCH 4.15 144/168] ip_tunnel: better validate user provided tunnel names

4.15-stable review patch. If anyone has any objections, please let me know. -- From: Eric Dumazet [ Upstream commit 9cb726a212a82c88c98aa9f0037fd04777cd8fe5 ] Use dev_valid_name() to make sure user does not provide illegal device name. syzbot caught the

[PATCH 4.15 144/168] ip_tunnel: better validate user provided tunnel names

4.15-stable review patch. If anyone has any objections, please let me know. -- From: Eric Dumazet [ Upstream commit 9cb726a212a82c88c98aa9f0037fd04777cd8fe5 ] Use dev_valid_name() to make sure user does not provide illegal device name. syzbot caught the following bug :