CVE-2026-46238: batman-adv: stop caching unowned originator pointers in BAT IV
Published May 28, 2026
·Updated
batman-adv: stop caching unowned originator pointers in BAT IV
Affected Software
12 affected componentsFixes available
The Linux Foundation Linux kernel (batman-adv)
Linux Linux kernel>=2.6.38<5.10.258
Linux Linux kernel>=5.11<5.15.209
Linux Linux kernel>=5.16<6.1.175
Linux Linux kernel>=6.2<6.6.140
Linux Linux kernel>=6.7<6.12.90
Linux Linux kernel>=6.13<6.18.32
Linux Linux kernel>=6.19<7.0.9
Linux Linux kernel=7.1-rc1
Linux Linux kernel=7.1-rc2
Linux Linux kernel=7.1-rc3
Microsoft azl3 kernel 6.6.139.1-1<6.6.141.1-1
6.6.141.1-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.141.1-1
Event History
May 28, 2026
CVE Published
via MITRE·09:41 AM
Data Sourced
via MITRE·09:41 AM
DescriptionSeverity
Data Sourced
via NVD·10:16 AM
RemedyDescriptionSeverityAffected Software
May 29, 2026
Data Sourced
via Microsoft·08:06 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:06 AM
Affected Software
Updated
via Microsoft·08:06 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-46238?
CVE-2026-46238 has a high severity rating of 8.8.
2
How do I fix CVE-2026-46238?
To fix CVE-2026-46238, ensure that your Linux kernel is updated to the latest version where this vulnerability has been addressed.
3
What type of attack can exploit CVE-2026-46238?
CVE-2026-46238 can potentially be exploited from a network perspective due to its impact on neighbor discovery.
4
What components are affected by CVE-2026-46238?
CVE-2026-46238 affects the batman-adv component of the Linux kernel.
5
When was CVE-2026-46238 published?
CVE-2026-46238 was published on May 28, 2026.