softlockup

A subtle but consequential Linux-kernel fix landed upstream this spring: CVE-2025-22010 closes a soft‑lockup hazard in the RDMA hns driver that could let a large memory‑region registration (MR) stall CPU cores for tens of seconds, producing real-world denial‑of‑service symptoms on RDMA‑enabled...

The Linux kernel’s ftrace subsystem received a targeted fix for a responsiveness issue that could turn into a local denial‑of‑service: a missing conditional reschedule inside ftrace_graph_set_hash() allowed long loops to hog the CPU and trigger the kernel’s softlockup watchdog under heavy...