NULL Pointer Dereference Affecting kernel-livepatch-6_4_0-150700_53_87-default package, versions <1-150700.15.3.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.51% (43rd percentile)

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  • Snyk IDSNYK-SLES157-KERNELLIVEPATCH6401507005387DEFAULT-21877667
  • published30 Oct 2026
  • disclosed29 Oct 2026

Introduced: 29 Oct 2026

NewCVE-2026-64116  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-livepatch-6_4_0-150700_53_87-default to version 1-150700.15.3.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150700_53_87-default package and not the kernel-livepatch-6_4_0-150700_53_87-default package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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

ipv6: ioam: add NULL check for idev in ipv6_hop_ioam()

Reported by Sashiko:

The function ipv6_hop_ioam() accesses __in6_dev_get(skb->dev)->cnf.ioam6_enabled without validating the returned idev pointer. Because addrconf_ifdown() can concurrently clear dev->ip6_ptr via RCU, __in6_dev_get() can return NULL during interface teardown, which could cause a NULL pointer dereference when processing an IOAM Hop-by-Hop option.

Let's add a check and use SKB_DROP_REASON_IPV6DISABLED accordingly.

CVSS Base Scores

version 3.1