In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.
lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html
www.openwall.com/lists/oss-security/2020/04/15/4
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8
git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64
lists.debian.org/debian-lts-announce/2020/06/msg00011.html
lists.debian.org/debian-lts-announce/2020/06/msg00012.html
lists.debian.org/debian-lts-announce/2020/06/msg00013.html
lkml.org/lkml/2020/2/15/125
security.netapp.com/advisory/ntap-20200403-0003/
usn.ubuntu.com/4342-1/
usn.ubuntu.com/4344-1/
usn.ubuntu.com/4345-1/
usn.ubuntu.com/4364-1/
www.debian.org/security/2020/dsa-4667
www.debian.org/security/2020/dsa-4698