CLSA-2026-1777542671 flatpak: Fix of CVE-2026-34079

CVE-2026-34079: prevent arbitrary file deletion via ld.so cache symlink...

CVE-2026-34079 Flatpak affected by arbitrary file deletion on the host filesystem

Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatpak apps to delete arbitrary files on t...