CVE-2024-53222

Concretely, CVE-2024-53222 affects Linux zram: the zram_add() path can dereference NULL for zram->comp_algs[ZRAM_PRIMARY_COMP] if comp_algorithm_set() hasn’t run yet. The fix moves the necessary setup earlier (ahead of device_add_disk()) so the zram device is ready before users can access it v...