CVE-2026-80647 (GCVE-0-2026-80647)
Vulnerability from cvelistv5
Published
2026-08-28 06:48
Modified
2026-08-28 06:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix warning in poll cq direct mode CQs allocated by ib_alloc_cq() always have a comp_handler. Though in direct mode this handler is never expected to be called, it is still called when the driver is reset, triggering the following WARN_ONCE(): Call trace: ib_cq_completion_direct+0x38/0x60 hns_roce_cq_completion+0x54/0x90 (hns_roce_hw_v2] hns_roce_handle_device_err+Ox1c8/0x340 [hns_roce_hw_v2] hns_roce_hw_v2_uninit_instance.constprop.0+0x34/0x70 [hns_roce_hw_v2] hns_roce_hw_v2_reset_notify+0xc4/0xe0 [hns_roce_hw_v2] hclge_notify_roce_client+0x60/0xbc [hclge] hclge_reset_rebuild+0x48/0x34c [hclge] hclge_reset_subtask+0xcc/0xec [hclge] hclge_reset_service_task+0x80/0x160 [hclge] hclge_service_task+0x50/0x80 (hclge] process_one_work+0x1cc/0x4d0 worker_thread+0x154/0x414 kthread+0x104/0x144 ret_from_fork+0x10/0x18
References
Impacted products
Vendor Product Version
Linux Linux Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
Version: f295e4cece5cb4c60715fed539abcd62468f9ef1
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "95b2e44bc1e5c5d93bb58e178d914dd99a3baa6f",
              "status": "affected",
              "version": "f295e4cece5cb4c60715fed539abcd62468f9ef1",
              "versionType": "git"
            },
            {
              "lessThan": "e7d363c0ffa836ac1d89657686cad241392c5eb2",
              "status": "affected",
              "version": "f295e4cece5cb4c60715fed539abcd62468f9ef1",
              "versionType": "git"
            },
            {
              "lessThan": "c028c1977b6e61eee26bb69332453efb6513f83b",
              "status": "affected",
              "version": "f295e4cece5cb4c60715fed539abcd62468f9ef1",
              "versionType": "git"
            },
            {
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              "versionType": "git"
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              "versionType": "git"
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            {
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            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:56.879Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/95b2e44bc1e5c5d93bb58e178d914dd99a3baa6f"
        },
        {
          "url": "https://git.kernel.org/stable/c/e7d363c0ffa836ac1d89657686cad241392c5eb2"
        },
        {
          "url": "https://git.kernel.org/stable/c/c028c1977b6e61eee26bb69332453efb6513f83b"
        },
        {
          "url": "https://git.kernel.org/stable/c/a075a7acd155ffdd058e72eb3f4cce1207ebafa1"
        },
        {
          "url": "https://git.kernel.org/stable/c/9f05319149c14acedb83e2c2842ec4b38992ad9f"
        },
        {
          "url": "https://git.kernel.org/stable/c/16138ea9833d6bb1bed37a3321f282242704bf02"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e56f8886d64288cf88d80af44c7b9148aeaa98b"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f19c2a3852e6ba75f3e92dd5edc4e07f3d07f4a"
        }
      ],
      "title": "RDMA/hns: Fix warning in poll cq direct mode",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80647",
    "datePublished": "2026-08-28T06:48:56.879Z",
    "dateReserved": "2026-08-26T14:34:25.779Z",
    "dateUpdated": "2026-08-28T06:48:56.879Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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