FKIE_CVE-2026-52926

Vulnerability from fkie_nvd - Published: 2026-06-24 08:16 - Updated: 2026-06-24 08:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: clear current gateway during teardown batadv_gw_node_free() removes the gateway list entries during mesh teardown, but it does not clear the currently selected gateway. This leaves stale gateway state behind across cleanup and can break a later mesh recreation. Clear bat_priv->gw.curr_gw before walking the gateway list so the selected gateway reference is dropped as part of teardown.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/17e3a441111cd1a530cd6ee69a22f3161d80d810
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/30bda3ef4b0cac777f1a7c314cd08b8ff6437365
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6de089b545db013433cf934bb4e4433dec2dd65f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a340a51ed801eab7bb454150c226323b865263cc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae7aeb0ce3c0ebbe357ed525779acac197a18086
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e2ec4c712d19141ca7bf7fbbb1d842f73abaa186
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/batman-adv/gateway_client.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            },
            {
              "lessThan": "e2ec4c712d19141ca7bf7fbbb1d842f73abaa186",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            },
            {
              "lessThan": "9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            },
            {
              "lessThan": "6de089b545db013433cf934bb4e4433dec2dd65f",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            },
            {
              "lessThan": "30bda3ef4b0cac777f1a7c314cd08b8ff6437365",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            },
            {
              "lessThan": "ae7aeb0ce3c0ebbe357ed525779acac197a18086",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            },
            {
              "lessThan": "17e3a441111cd1a530cd6ee69a22f3161d80d810",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            },
            {
              "lessThan": "a340a51ed801eab7bb454150c226323b865263cc",
              "status": "affected",
              "version": "2265c141086474bbae55a5bb3afa1ebb78ccaa7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/batman-adv/gateway_client.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.1"
            },
            {
              "lessThan": "3.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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\nbatman-adv: clear current gateway during teardown\n\nbatadv_gw_node_free() removes the gateway list entries during mesh teardown,\nbut it does not clear the currently selected gateway. This leaves stale\ngateway state behind across cleanup and can break a later mesh recreation.\n\nClear bat_priv-\u003egw.curr_gw before walking the gateway list so the selected\ngateway reference is dropped as part of teardown."
    }
  ],
  "id": "CVE-2026-52926",
  "lastModified": "2026-06-24T08:16:22.697",
  "metrics": {},
  "published": "2026-06-24T08:16:22.697",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/17e3a441111cd1a530cd6ee69a22f3161d80d810"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/30bda3ef4b0cac777f1a7c314cd08b8ff6437365"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6de089b545db013433cf934bb4e4433dec2dd65f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9a1a8ed4facfe843bde6fdfcf7af0e9923eb2e17"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a340a51ed801eab7bb454150c226323b865263cc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a3f3f1ec8aad84c5dd386c430b9c61cddd85b18f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ae7aeb0ce3c0ebbe357ed525779acac197a18086"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e2ec4c712d19141ca7bf7fbbb1d842f73abaa186"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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