{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f295e4cece5cb4c60715fed539abcd62468f9ef1"
            },
            {
              "fixed": "95b2e44bc1e5c5d93bb58e178d914dd99a3baa6f"
            },
            {
              "fixed": "e7d363c0ffa836ac1d89657686cad241392c5eb2"
            },
            {
              "fixed": "c028c1977b6e61eee26bb69332453efb6513f83b"
            },
            {
              "fixed": "a075a7acd155ffdd058e72eb3f4cce1207ebafa1"
            },
            {
              "fixed": "9f05319149c14acedb83e2c2842ec4b38992ad9f"
            },
            {
              "fixed": "16138ea9833d6bb1bed37a3321f282242704bf02"
            },
            {
              "fixed": "1e56f8886d64288cf88d80af44c7b9148aeaa98b"
            },
            {
              "fixed": "3f19c2a3852e6ba75f3e92dd5edc4e07f3d07f4a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.5.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80647.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix warning in poll cq direct mode\n\nCQs allocated by ib_alloc_cq() always have a comp_handler. Though\nin direct mode this handler is never expected to be called, it\nis still called when the driver is reset, triggering the following\nWARN_ONCE():\n\nCall trace:\nib_cq_completion_direct+0x38/0x60\nhns_roce_cq_completion+0x54/0x90 (hns_roce_hw_v2]\nhns_roce_handle_device_err+Ox1c8/0x340 [hns_roce_hw_v2]\nhns_roce_hw_v2_uninit_instance.constprop.0+0x34/0x70 [hns_roce_hw_v2]\nhns_roce_hw_v2_reset_notify+0xc4/0xe0 [hns_roce_hw_v2]\nhclge_notify_roce_client+0x60/0xbc [hclge]\nhclge_reset_rebuild+0x48/0x34c [hclge]\nhclge_reset_subtask+0xcc/0xec [hclge]\nhclge_reset_service_task+0x80/0x160 [hclge]\nhclge_service_task+0x50/0x80 (hclge]\nprocess_one_work+0x1cc/0x4d0\nworker_thread+0x154/0x414\nkthread+0x104/0x144\nret_from_fork+0x10/0x18",
  "id": "CVE-2026-80647",
  "modified": "2026-08-30T03:30:29.041102775Z",
  "published": "2026-08-28T06:48:56.879Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16138ea9833d6bb1bed37a3321f282242704bf02"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e56f8886d64288cf88d80af44c7b9148aeaa98b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f19c2a3852e6ba75f3e92dd5edc4e07f3d07f4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95b2e44bc1e5c5d93bb58e178d914dd99a3baa6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f05319149c14acedb83e2c2842ec4b38992ad9f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a075a7acd155ffdd058e72eb3f4cce1207ebafa1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c028c1977b6e61eee26bb69332453efb6513f83b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7d363c0ffa836ac1d89657686cad241392c5eb2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80647.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80647"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "RDMA/hns: Fix warning in poll cq direct mode"
}