FKIE_CVE-2026-80625

Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-08-28 08:16
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bc4caea7a82bbcf94a34eff7094e7f9b501680ab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0bd03b850d81a8914168d87ddf7f6ffa58875ef
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-80625",
  "lastModified": "2026-08-28T08:16:46.647",
  "metrics": {},
  "published": "2026-08-28T08:16:46.647",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bc4caea7a82bbcf94a34eff7094e7f9b501680ab"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c0bd03b850d81a8914168d87ddf7f6ffa58875ef"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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