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CVE-2026-97601

ieee802154: 6lowpan: fix NULL dereference in lowpan_newlink

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 2 more
None on Exploit-DB, Metasploit or GitHub

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in a1760f21c32adce41af5ed5687200865d8feaaeb; From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in 5063b9354e6e285dae61e530b30458498444a914; From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in 16d8e0b560d50cd1a9e6d77a9a154a94c4d6021e; From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in 543994fa03c36a91d967a12c5c99cae74899504c; From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in 1c7710af7ad9532b534f1c134c11b04dbe4e0e0f; From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in 98ce5a42cde780ee0e40378607d4428c8fc12ec1; From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in 8528da2333ce05cf627f93425f9d05efb08b3146; From 51e0e5d8124ece158927a4c2288c0929d3b53aa3 · fixed in bf79662bc85e820ac3b846e2f347da29fbf6ac95

  • Linux Linux

    4.3

  • KernelLinux

    From 4.3.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7

References 8

git.kernel.org