CVE-2026-90105 (GCVE-0-2026-90105)
Vulnerability from cvelistv5
Published
2026-09-17 16:06
Modified
2026-10-30 12:34
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: vxlan: fix reading neigh ha Currently arp/neigh_reduce read neigh ha directly which can lead to partial reads while the neigh is being updated. Use neigh_ha_snapshot to take a stable snapshot of the address similar to route_shortcircuit which already does the right thing.
Impacted products
Vendor Product Version
Linux Linux Version: e4f67addf158f98f8197e08974966b18480dc751
Version: e4f67addf158f98f8197e08974966b18480dc751
Version: e4f67addf158f98f8197e08974966b18480dc751
Version: e4f67addf158f98f8197e08974966b18480dc751
Version: e4f67addf158f98f8197e08974966b18480dc751
Version: e4f67addf158f98f8197e08974966b18480dc751
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/vxlan/vxlan_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
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              "versionType": "git"
            },
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/vxlan/vxlan_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.191",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: fix reading neigh ha\n\nCurrently arp/neigh_reduce read neigh ha directly which can lead to\npartial reads while the neigh is being updated. Use neigh_ha_snapshot to\ntake a stable snapshot of the address similar to route_shortcircuit which\nalready does the right thing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:34:09.898Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a1e86c5b4463178751a9fd3f0a3876a602dc360c"
        },
        {
          "url": "https://git.kernel.org/stable/c/6093baf2b2c57e7da33bacd2223570a78b416d89"
        },
        {
          "url": "https://git.kernel.org/stable/c/751cb520f9e47538b7223df133806a29fc41f54f"
        },
        {
          "url": "https://git.kernel.org/stable/c/f43ef9a3f9c121472a0754c9e9bff13317ace0f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/ecc8bac11a101e5f6989a14b92e17b51f9761630"
        },
        {
          "url": "https://git.kernel.org/stable/c/b824059a673b2283e78c7aae2c7d257aad7f0e1d"
        }
      ],
      "title": "vxlan: fix reading neigh ha",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90105",
    "datePublished": "2026-09-17T16:06:14.829Z",
    "dateReserved": "2026-09-11T19:38:34.786Z",
    "dateUpdated": "2026-10-30T12:34:09.898Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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