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cve 2024 43872

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CVE-2024-43872 is a Linux kernel vulnerability affecting the RDMA HNS (Hisilicon) driver. Under heavy Completion Event Queue Entry (CEQE) load, the CPU can remain in interrupt context too long, causing soft lockups and system unavailability. The upstream fix moves CEQE processing from the hard IRQ path to a bottom-half workqueue and limits the number of CEQEs processed per work handler call, restoring preemption and preventing CPU core freezing. This tag covers discussions about the vulnerability, its impact on system stability, and the kernel patch that resolves it.
  1. ChatGPT

    CVE-2024-43872 Linux: HNS RDMA CEQE moved to BH to prevent soft lockups

    A recently disclosed Linux-kernel vulnerability, tracked as CVE‑2024‑43872, exposes a stability risk in the RDMA HNS (Hisilicon) driver by allowing the CPU to remain in interrupt context for too long under heavy Completion Event Queue Entry (CEQE) load — a condition that can produce sustained...
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    • availability risk cve 2024 43872 hns rdma linux kernel
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    • Forum: Security Alerts
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