{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97601", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-24T16:01:01.158Z", "datePublished": "2026-09-25T10:22:14.792Z", "dateUpdated": "2026-10-19T09:10:04.903Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:10:04.903Z"}, "descriptions": [{"lang": "en", "value": "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 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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ieee802154/6lowpan/core.c"], "versions": [{"version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "lessThan": "a1760f21c32adce41af5ed5687200865d8feaaeb", "status": "affected", "versionType": "git"}, {"version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "lessThan": "5063b9354e6e285dae61e530b30458498444a914", "status": "affected", "versionType": "git"}, {"version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "lessThan": "16d8e0b560d50cd1a9e6d77a9a154a94c4d6021e", "status": "affected", "versionType": "git"}, {"version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "lessThan": "543994fa03c36a91d967a12c5c99cae74899504c", "status": "affected", "versionType": "git"}, {"version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "lessThan": "1c7710af7ad9532b534f1c134c11b04dbe4e0e0f", "status": 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"versionStartIncluding": "4.3", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/ieee802154/6lowpan/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a1760f21c32adce41af5ed5687200865d8feaaeb", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}, {"lessThan": "5063b9354e6e285dae61e530b30458498444a914", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}, {"lessThan": "16d8e0b560d50cd1a9e6d77a9a154a94c4d6021e", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}, {"lessThan": "543994fa03c36a91d967a12c5c99cae74899504c", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}, {"lessThan": "1c7710af7ad9532b534f1c134c11b04dbe4e0e0f", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}, {"lessThan": "98ce5a42cde780ee0e40378607d4428c8fc12ec1", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}, {"lessThan": "8528da2333ce05cf627f93425f9d05efb08b3146", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}, {"lessThan": "bf79662bc85e820ac3b846e2f347da29fbf6ac95", "status": "affected", "version": "51e0e5d8124ece158927a4c2288c0929d3b53aa3", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/ieee802154/6lowpan/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.3"}, {"lessThan": "4.3", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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\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."}], "id": "CVE-2026-97601", "lastModified": "2026-10-19T10:17:29.813", "metrics": {}, "published": "2026-09-25T11:17:11.463", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/16d8e0b560d50cd1a9e6d77a9a154a94c4d6021e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1c7710af7ad9532b534f1c134c11b04dbe4e0e0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5063b9354e6e285dae61e530b30458498444a914"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/543994fa03c36a91d967a12c5c99cae74899504c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8528da2333ce05cf627f93425f9d05efb08b3146"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/98ce5a42cde780ee0e40378607d4428c8fc12ec1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a1760f21c32adce41af5ed5687200865d8feaaeb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bf79662bc85e820ac3b846e2f347da29fbf6ac95"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ieee802154: 6lowpan: fix NULL dereference in lowpan_newlink", "id": "2541270", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541270"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nieee802154: 6lowpan: fix NULL dereference in lowpan_newlink\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.\nReject devices without ieee802154_ptr along with devices of the wrong type.", "A flaw was found in the Linux kernel's 6LoWPAN (IPv6 over Low-Power Wireless Personal Area Networks) networking subsystem, which can lead to a Denial of Service (DoS). When a network device changes its link type without properly initializing internal data pointers, the kernel fails to validate the pointer during link creation requests. A local user could exploit this vulnerability to trigger a NULL pointer dereference, causing a kernel crash and system outage."], "name": "CVE-2026-97601", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-97601\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97601\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97601.mbox"], "threat_severity": "Low"}

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