A cgroup blkio memory leakage problem was found in blkgs destruction path in block/blk-cgroup.c in the Linux kernel. In this flaw, an attacker with a local access may cause a system instability, such as out of memory. Refer: https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2257970]
This was fixed for Fedora with the 6.3.9 stable kernel updates.