CVE-2022-42330 Information

Description

Guests can cause Xenstore crash via soft reset When a guest issues a \Soft Reset\ (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.

Reference

https://xenbits.xenproject.org/xsa/advisory-425.txt