CVE-2024-35846 mm: zswap: fix shrinker NULL crash with cgroup_disable=memory

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: fix shrinker NULL crash with cgroupdisable=memory Christian reports a NULL deref in zswap that he bisected down to the zswap shrinker. The issue also cropped up in the bug trackers of libguestfs 1 and the Red Hat...