CVE-2026-47335: NULL pointer dereference in Ubuntu Linux AppArmor notification handling
Published May 28, 2026
·Updated
Last updated 5 June 2026
Other sources
Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel panic.
— MITRE
Affected Software
3 affected componentsFixes available
Canonical Ubuntu Linux=6.8
Canonical Ubuntu Linux=6.8
debian/linux
5.10.223-15.10.257-16.1.170-36.1.174-16.12.86-16.12.90-27.0.10-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.257-1Fixed in 6.1.170-3Fixed in 6.1.174-1Fixed in 6.12.86-1Fixed in 6.12.90-2Fixed in 7.0.10-1
Event History
May 28, 2026
CVE Published
via MITRE·06:28 PM
Data Sourced
via MITRE·06:28 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·07:16 PM
DescriptionSeverityWeaknessAffected Software
Jun 2, 2026
Data Sourced
via Launchpad·05:39 PM
Description
Jun 3, 2026
Data Sourced
via Debian·05:39 PM
DescriptionAffected Software
Jun 6, 2026
Data Sourced
via Ubuntu·05:41 PM
RemedyDescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-47335?
The severity of CVE-2026-47335 is medium with a score of 5.5.
2
What type of vulnerability is CVE-2026-47335?
CVE-2026-47335 is a NULL pointer dereference vulnerability.
3
How can CVE-2026-47335 be exploited?
CVE-2026-47335 can be exploited by an unprivileged local user triggering a kernel panic.
4
What version of Ubuntu is affected by CVE-2026-47335?
CVE-2026-47335 affects Canonical Ubuntu Linux 6.8.
5
How do I fix CVE-2026-47335?
To fix CVE-2026-47335, ensure that you apply the latest security updates from Canonical for Ubuntu Linux.