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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-64116 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/09cbfd4b81ae90963dadb1de99b63b702e73290a kernel.org
https://git.kernel.org/stable/c/1dca7e491f070ac49b3d934f16ee953a53b37f38 kernel.org
https://git.kernel.org/stable/c/902daac307eb7e1955ce05b071950f3cba88c963 kernel.org
https://git.kernel.org/stable/c/abdd03229414b5a52943b65a60f34b84cea5ac59 kernel.org
https://git.kernel.org/stable/c/c7e8971abd70e9d022f1c251ba2508f8dc7f2db8 kernel.org
https://git.kernel.org/stable/c/cf75eb6617042c8cff6112daeed7791809fc9dd2 kernel.org
https://git.kernel.org/stable/c/d4ea0dfd75011b78cebf3808f98ac4c4f51a6fb9 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-64116
NVD Published Date:
07/19/2026
NVD Last Modified:
07/20/2026
Source:
kernel.org