CVE-2026-43103 (GCVE-0-2026-43103)
Vulnerability from cvelistv5
Published
2026-05-06 07:40
Modified
2026-06-01 16:14
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: lapbether: handle NETDEV_PRE_TYPE_CHANGE lapbeth_data_transmit() expects the underlying device type to be ARPHRD_ETHER. Returning NOTIFY_BAD from lapbeth_device_event() makes sure bonding driver can not break this expectation.
References
Impacted products
Vendor Product Version
Linux Linux Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
Version: 872254dd6b1f80cb95ee9e2e22980888533fc293
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wan/lapbether.c"
          ],
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
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              "version": "6.19.14",
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            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lapbether: handle NETDEV_PRE_TYPE_CHANGE\n\nlapbeth_data_transmit() expects the underlying device type\nto be ARPHRD_ETHER.\n\nReturning NOTIFY_BAD from lapbeth_device_event() makes sure\nbonding driver can not break this expectation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T16:14:48.824Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/698642a01d53107ce9b3fc08bd801284af478a2b"
        },
        {
          "url": "https://git.kernel.org/stable/c/ffc5ed59f6dc87c51e8775f002619310225742e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/a10570973619cba9dfa6d723177251b846fae587"
        },
        {
          "url": "https://git.kernel.org/stable/c/363a38044b8cd5b496d241651a1fb666e7c5fe3e"
        },
        {
          "url": "https://git.kernel.org/stable/c/328bb2cff5c2ed973f595ded769e15f4b7a117be"
        },
        {
          "url": "https://git.kernel.org/stable/c/63851f60781aa89258c8f0952cd13940aab0888e"
        },
        {
          "url": "https://git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a"
        },
        {
          "url": "https://git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb"
        }
      ],
      "title": "net: lapbether: handle NETDEV_PRE_TYPE_CHANGE",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43103",
    "datePublished": "2026-05-06T07:40:32.357Z",
    "dateReserved": "2026-05-01T14:12:55.984Z",
    "dateUpdated": "2026-06-01T16:14:48.824Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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