Threats Tagged 'cve-2026-89752'

A vulnerability in the Linux kernel's memory control group (memcg) subsystem could cause a reclaim operation to loop indefinitely when memory limits are updated concurrently through separate open files. This occurs because the reclaim loop uses a stale target limit after another writer raises or removes the limit, potentially causing the first writer to block and repeatedly increment an out-of-memory (OOM) event counter. The issue was discovered through automated testing and has been resolved by checking the current limit at each reclaim iteration and stopping if it no longer matches the writer's target.