{"id":"CVE-2026-97601","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: 6lowpan: fix NULL dereference in lowpan_newlink\n\nTUNSETLINK allows a TUN device to change its link-layer type to\nARPHRD_IEEE802154 without initializing ieee…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: 6lowpan: fix NULL dereference in lowpan_newlink\n\nTUNSETLINK allows a TUN device to change its link-layer type to\nARPHRD_IEEE802154 without initializing ieee…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < a1760f21c32adce41af5ed5687200865d8feaaeb","Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 5063b9354e6e285dae61e530b30458498444a914","Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 16d8e0b560d50cd1a9e6d77a9a154a94c4d6021e","Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 543994fa03c36a91d967a12c5c99cae74899504c","Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 1c7710af7ad9532b534f1c134c11b04dbe4e0e0f","Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 98ce5a42cde780ee0e40378607d4428c8fc12ec1","Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 8528da2333ce05cf627f93425f9d05efb08b3146","Linux >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3 < bf79662bc85e820ac3b846e2f347da29fbf6ac95","Linux 4.3"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:06.577","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97601","references":[{"url":"https://git.kernel.org/stable/c/16d8e0b560d50cd1a9e6d77a9a154a94c4d6021e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1c7710af7ad9532b534f1c134c11b04dbe4e0e0f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5063b9354e6e285dae61e530b30458498444a914","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/543994fa03c36a91d967a12c5c99cae74899504c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8528da2333ce05cf627f93425f9d05efb08b3146","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/98ce5a42cde780ee0e40378607d4428c8fc12ec1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a1760f21c32adce41af5ed5687200865d8feaaeb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bf79662bc85e820ac3b846e2f347da29fbf6ac95","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97601.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97601"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541270"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97601"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97601"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97601.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00211,"epssPercentile":0.11212,"ingestedAt":"2026-09-25T11:06:38.902Z","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-476"],"slug":"CVE-2026-97601","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: 6lowpan: fix NULL dereference in lowpan_newlink\n\nTUNSETLINK allows a TUN device to change its link-layer type to\nARPHRD_IEEE802154 without initializing ieee802154_ptr. lowpan_newlink()\nchecks only the device type before dereferencing the pointer, so an\nRTM_NEWLINK request can trigger a NULL pointer dereference.\n\nReject devices without ieee802154_ptr along with devices of the wrong type.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97601.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":224185,"id":"CVE-2026-97601","ts":1792324996485,"field":"cvss","old":null,"new":"5.5"},{"seq":224184,"id":"CVE-2026-97601","ts":1792324996485,"field":"severity","old":"none","new":"medium"}]}