{"id":"CVE-2026-97601","summary":"ieee802154: 6lowpan: fix NULL dereference in lowpan_newlink","details":"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.","modified":"2026-09-26T03:48:36.495586701Z","published":"2026-09-25T10:22:14.792Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97601.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1c7710af7ad9532b534f1c134c11b04dbe4e0e0f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8528da2333ce05cf627f93425f9d05efb08b3146"},{"type":"WEB","url":"https://git.kernel.org/stable/c/98ce5a42cde780ee0e40378607d4428c8fc12ec1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bf79662bc85e820ac3b846e2f347da29fbf6ac95"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97601.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97601"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"51e0e5d8124ece158927a4c2288c0929d3b53aa3"},{"fixed":"1c7710af7ad9532b534f1c134c11b04dbe4e0e0f"},{"fixed":"98ce5a42cde780ee0e40378607d4428c8fc12ec1"},{"fixed":"8528da2333ce05cf627f93425f9d05efb08b3146"},{"fixed":"bf79662bc85e820ac3b846e2f347da29fbf6ac95"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97601.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.3.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97601.json"}}],"schema_version":"1.9.0"}