xen is vulnerable to denial of service. The vulnerability exits due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.
www.openwall.com/lists/oss-security/2022/04/05/1
xenbits.xen.org/xsa/advisory-397.html
lists.fedoraproject.org/archives/list/[email protected]/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/
lists.fedoraproject.org/archives/list/[email protected]/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/
secdb.alpinelinux.org/edge/main.yaml
secdb.alpinelinux.org/v3.13/main.yaml
www.debian.org/security/2022/dsa-5117
xenbits.xenproject.org/xsa/advisory-397.txt