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ieee802154: 6lowpan: fix NULL dereference in lowpan_newlink

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: fix NULL dereference in lowpan_newlink TUNSETLINK allows a TUN device to change its link-layer type to ARPHRD_IEEE802154 without initializing ieee802154_ptr. lowpan_newlink() checks only the device type before dereferencing the pointer, so an RTM_NEWLINK request can trigger a NULL pointer dereference. Reject devices without ieee802154_ptr along with devices of the wrong type.

Announced Group revision 1
Original source ↗

CVE-2026-97601

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-97601

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "a1760f21c32adce41af5ed5687200865d8feaaeb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "5063b9354e6e285dae61e530b30458498444a914",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "16d8e0b560d50cd1a9e6d77a9a154a94c4d6021e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "543994fa03c36a91d967a12c5c99cae74899504c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "1c7710af7ad9532b534f1c134c11b04dbe4e0e0f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "98ce5a42cde780ee0e40378607d4428c8fc12ec1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "8528da2333ce05cf627f93425f9d05efb08b3146",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3",
        "lessThan": "bf79662bc85e820ac3b846e2f347da29fbf6ac95",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/ieee802154/6lowpan/core.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.3"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.3",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.111",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.53",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.7",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/ieee802154/6lowpan/core.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-97601

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38041 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-97601 · Revision 1Source updated