XSA-501 was about issues with v1 -> v2 and v2 -> v1 changes racing certain other grant table operations. Sadly a v2 -> v1 -> v2 change has yet anothe...

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

XSA-501 was about issues with v1 -> v2 and v2 -> v1 changes racing certain
other grant table operations. Sadly a v2 -> v1 -> v2 change has yet
another effect which wasn't accounted for: During the first change, status
pages would be freed. During the second change they would be allocated
again. Hence across the full pair of change the addresses of the status
pages may change, rendering stale previously calculated pointers into the
status array.

出典: OSV.dev (Open Source Vulnerabilities) OSV

影響パッケージ

Alpine:v3.21 xen

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.19.6-r2"}]}]

Alpine:v3.22 xen

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.20.4-r2"}]}]

Alpine:v3.23 xen

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.20.4-r2"}]}]

Alpine:v3.24 xen

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.21.2-r2"}]}]

参照URL

advisory security.alpinelinux.org