An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.
https://support.f5.com/csp/article/K53420251?utm_source=f5support&%3Butm_medium=RSS
https://security.netapp.com/advisory/ntap-20191004-0001/
https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.19
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html