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CVE-2026-97601

Unknown

Last modified

CVE-2026-97601 is a vulnerability of currently unknown severity. 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..

Description

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

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 51e0e5d8124ece158927a4c2288c0929d3b53aa3, < 1c7710af7ad9532b534f1c134c11b04dbe4e0e0f; >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3, < 98ce5a42cde780ee0e40378607d4428c8fc12ec1; >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3, < 8528da2333ce05cf627f93425f9d05efb08b3146; >= 51e0e5d8124ece158927a4c2288c0929d3b53aa3, < bf79662bc85e820ac3b846e2f347da29fbf6ac95
LinuxLinux4.3

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-97601?
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.
How severe is CVE-2026-97601?
Severity scoring for CVE-2026-97601 is pending analysis.
How do I fix CVE-2026-97601?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST