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GHSA-Q7C4-MW3P-RVRQ

Vulnerability from github – Published: 2026-08-28 09:31 – Updated: 2026-08-28 09:31

Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/hns: Fix memory leak of bonding resources

In a corner case of concurrent driver removal and driver reset, bonding resource is first released in hns_roce_hw_v2_exit() during driver removal, and then is allocated again in hns_roce_register_device() during driver reset. This leads to memory leak because the release timing has already passed. This may also lead to a kernel panic as below because of the leaked notifier callback:

Call trace: 0xffffa20fccc04978 (P) raw_notifier_call_chain+0x20/0x38 call_netdevice_notifiers_info+0x60/0xb8 netdev_lower_state_changed+0x4c/0xb8

As Sashiko suggested, the teardown order of bonding resources should be inverted to make sure the resources are released when the driver is removed.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80625"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T08:16:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix memory leak of bonding resources\n\nIn a corner case of concurrent driver removal and driver reset,\nbonding resource is first released in hns_roce_hw_v2_exit() during\ndriver removal, and then is allocated again in hns_roce_register_device()\nduring driver reset. This leads to memory leak because the release\ntiming has already passed. This may also lead to a kernel panic\nas below because of the leaked notifier callback:\n\nCall trace:\n  0xffffa20fccc04978 (P)\n  raw_notifier_call_chain+0x20/0x38\n  call_netdevice_notifiers_info+0x60/0xb8\n  netdev_lower_state_changed+0x4c/0xb8\n\nAs Sashiko suggested, the teardown order of bonding resources should\nbe inverted to make sure the resources are released when the driver\nis removed.",
  "id": "GHSA-q7c4-mw3p-rvrq",
  "modified": "2026-08-28T09:31:47Z",
  "published": "2026-08-28T09:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80625"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc4caea7a82bbcf94a34eff7094e7f9b501680ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0bd03b850d81a8914168d87ddf7f6ffa58875ef"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80625 (GCVE-0-2026-80625)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-28 06:48

Title

RDMA/hns: Fix memory leak of bonding resources

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix memory leak of bonding resources In a corner case of concurrent driver removal and driver reset, bonding resource is first released in hns_roce_hw_v2_exit() during driver removal, and then is allocated again in hns_roce_register_device() during driver reset. This leads to memory leak because the release timing has already passed. This may also lead to a kernel panic as below because of the leaked notifier callback: Call trace: 0xffffa20fccc04978 (P) raw_notifier_call_chain+0x20/0x38 call_netdevice_notifiers_info+0x60/0xb8 netdev_lower_state_changed+0x4c/0xb8 As Sashiko suggested, the teardown order of bonding resources should be inverted to make sure the resources are released when the driver is removed.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/bc4caea7a82bbcf94…
https://git.kernel.org/stable/c/c0bd03b850d81a891…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b37ad2e290fc52e575572b04803a4f93f584df6c , < bc4caea7a82bbcf94a34eff7094e7f9b501680ab (git) Affected: b37ad2e290fc52e575572b04803a4f93f584df6c , < c0bd03b850d81a8914168d87ddf7f6ffa58875ef (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bc4caea7a82bbcf94a34eff7094e7f9b501680ab",
              "status": "affected",
              "version": "b37ad2e290fc52e575572b04803a4f93f584df6c",
              "versionType": "git"
            },
            {
              "lessThan": "c0bd03b850d81a8914168d87ddf7f6ffa58875ef",
              "status": "affected",
              "version": "b37ad2e290fc52e575572b04803a4f93f584df6c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "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": "7.1.5",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix memory leak of bonding resources\n\nIn a corner case of concurrent driver removal and driver reset,\nbonding resource is first released in hns_roce_hw_v2_exit() during\ndriver removal, and then is allocated again in hns_roce_register_device()\nduring driver reset. This leads to memory leak because the release\ntiming has already passed. This may also lead to a kernel panic\nas below because of the leaked notifier callback:\n\nCall trace:\n  0xffffa20fccc04978 (P)\n  raw_notifier_call_chain+0x20/0x38\n  call_netdevice_notifiers_info+0x60/0xb8\n  netdev_lower_state_changed+0x4c/0xb8\n\nAs Sashiko suggested, the teardown order of bonding resources should\nbe inverted to make sure the resources are released when the driver\nis removed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:43.583Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bc4caea7a82bbcf94a34eff7094e7f9b501680ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0bd03b850d81a8914168d87ddf7f6ffa58875ef"
        }
      ],
      "title": "RDMA/hns: Fix memory leak of bonding resources",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80625",
    "datePublished": "2026-08-28T06:48:43.583Z",
    "dateReserved": "2026-08-26T14:34:25.775Z",
    "dateUpdated": "2026-08-28T06:48:43.583Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-Q7C4-MW3P-RVRQ

CVE-2026-80625 (GCVE-0-2026-80625)

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Sightings

Nomenclature