cve 2024 57857

CVE-2024-57857 is a Linux kernel vulnerability in the RDMA/siw stack that causes a kernel-mode use-after-free (KASAN slab-use-after-free) in siw_query_port. This flaw can lead to hard availability failures, kernel oopses, and forced reboots on affected systems. It poses a high-priority stability and availability risk for hosts that expose RDMA, run multi-tenant services, or use software that exercises siw/ib_device lifecycles. Administrators should apply upstream or vendor patches immediately or use careful mitigations until updates are deployed. The tag covers discussion of the vulnerability, its impact, and guidance for patching and mitigation.