kernel is vulnerable to denial of service. A memory leak in sit_init_net()
in net/ipv6/sit.c
when register_netdev()
fails to register sitn->fb_tunnel_dev
allows an attacker to crash the system.
lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.1_release_notes/
access.redhat.com/errata/RHSA-2019:3517
access.redhat.com/security/updates/classification/#important
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=07f12b26e21ab359261bf75cfcb424fdc7daeb6d
github.com/torvalds/linux/commit/07f12b26e21ab359261bf75cfcb424fdc7daeb6d
security.netapp.com/advisory/ntap-20191031-0005/