CVE-2026-47335: NULL pointer dereference in Ubuntu Linux AppArmor notification handling
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
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 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.257-1 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.170-3 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.174-1 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.12.86-1 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.12.90-2 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 7.0.10-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47335?
The severity of CVE-2026-47335 is medium with a score of 5.5.
What type of vulnerability is CVE-2026-47335?
CVE-2026-47335 is a NULL pointer dereference vulnerability.
How can CVE-2026-47335 be exploited?
CVE-2026-47335 can be exploited by an unprivileged local user triggering a kernel panic.
What version of Ubuntu is affected by CVE-2026-47335?
CVE-2026-47335 affects Canonical Ubuntu Linux 6.8.
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.