CVE-2022-33743 Information

Description

network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path) a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.

Reference

https://xenbits.xenproject.org/xsa/advisory-405.txt http://xenbits.xen.org/xsa/advisory-405.html http://www.openwall.com/lists/oss-security/2022/07/05/5