CVE-2026-97601

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 1c7710af7ad9532b534f1c134c11b04dbe4e0e0faffected
LinuxLinux51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 98ce5a42cde780ee0e40378607d4428c8fc12ec1affected
LinuxLinux51e0e5d8124ece158927a4c2288c0929d3b53aa3 < 8528da2333ce05cf627f93425f9d05efb08b3146affected
LinuxLinux51e0e5d8124ece158927a4c2288c0929d3b53aa3 < bf79662bc85e820ac3b846e2f347da29fbf6ac95affected
LinuxLinux4.3affected
LinuxLinux0 < 4.3unaffected
LinuxLinux6.12.111 <= 6.12.*unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc3 <= *unaffected

Weaknesses

References