CVE-2026-43101

Last refreshed2026-10-23

Status: UPDATED | Advisory ID: CVE-2026-43101

Key Details

CVE	CVE-2026-43101
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-21
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high.
Affected products	Linux Kernel
Classified as	CWE-476 (NULL Pointer Dereference)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()

We need to check __in6_dev_get() for possible NULL value, as

suggested by Yiming Qian.

Also add skb_dst_dev_rcu() instead of skb_dst_dev(),

and two missing READ_ONCE().

Note that @dev can't be NULL. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-43101
CVE	https://www.cve.org/CVERecord?id=CVE-2026-43101

Source

Reference

NVD

CVE