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Vulnerability · Published May 28, 2026 · Assigned by canonical

CVE-2026-47334Deadlock or kernel panic in Ubuntu Linux AppArmor notification handling

Medium 5.5

In plain English

A medium-severity security flaw in Ubuntu Linux from Canonical. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)<0.1%top 99.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:24.04:LTSlinux6.8.0-124.124USN-8373-1
Ubuntu:24.04:LTSlinux6.8.0-124.124UBUNTU-CVE-2026-47334
Ubuntu:25.10linux6.17.0-35.35UBUNTU-CVE-2026-47334
Ubuntu:25.10linux6.17.0-35.35USN-8371-1
Ubuntu:26.04:LTSlinux7.0.0-22.22USN-8370-1
Ubuntu:26.04:LTSlinux7.0.0-22.22UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-aws6.8.0-1057.60UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-aws6.8.0-1057.60USN-8373-1
Ubuntu:25.10linux-aws6.17.0-1017.17UBUNTU-CVE-2026-47334
Ubuntu:25.10linux-aws6.17.0-1017.17USN-8371-1
Ubuntu:26.04:LTSlinux-aws7.0.0-1006.6USN-8370-1
Ubuntu:26.04:LTSlinux-aws7.0.0-1006.6UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1017.17~24.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1017.17~24.04.1USN-8374-1
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1057.60~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1057.60~22.04.1USN-8373-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1058.64USN-8373-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1058.64UBUNTU-CVE-2026-47334
Ubuntu:25.10linux-azure6.17.0-1017.17USN-8371-1
Ubuntu:25.10linux-azure6.17.0-1017.17UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-azure7.0.0-1007.7USN-8461-1
Ubuntu:26.04:LTSlinux-azure7.0.0-1007.7UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1017.17~24.04.1USN-8371-1
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1017.17~24.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2026-47334
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-azure-fde7.0.0-1006.6UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-gcp6.8.0-1060.63UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-gcp6.8.0-1060.63USN-8373-1
Ubuntu:25.10linux-gcp6.17.0-1018.19UBUNTU-CVE-2026-47334
Ubuntu:25.10linux-gcp6.17.0-1018.19USN-8374-1
Ubuntu:26.04:LTSlinux-gcp7.0.0-1005.5USN-8370-1
Ubuntu:26.04:LTSlinux-gcp7.0.0-1005.5UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1018.19~24.04.1USN-8374-1
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1018.19~24.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1060.63~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1060.63~22.04.1USN-8373-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1055.61UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-gke6.8.0-1055.61USN-8373-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1042.45UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1042.45USN-8373-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-35.35~24.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-35.35~24.04.1USN-8371-1
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-124.124~22.04.1USN-8373-1
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-124.124~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-28.28~24.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-ibm6.8.0-1057.58USN-8373-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1057.58UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-ibm7.0.0-1007.7USN-8370-1
Ubuntu:26.04:LTSlinux-ibm7.0.0-1007.7UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1057.58~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1057.58~22.04.1USN-8373-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-134.134.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-134.134.1~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1055.58UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1055.58USN-8373-1
Ubuntu:26.04:LTSlinux-nvidia7.0.0-1009.9USN-8370-1
Ubuntu:26.04:LTSlinux-nvidia7.0.0-1009.9UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1021.21USN-8371-1
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1021.21UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1055.58~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1055.58~22.04.1USN-8373-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1055.58.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1055.58.1USN-8373-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1026.26UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1026.26USN-8373-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1024.24USN-8371-1
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1024.24UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1008.8UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-oracle6.8.0-1054.55USN-8373-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1054.55UBUNTU-CVE-2026-47334
Ubuntu:25.10linux-oracle6.17.0-1016.16USN-8371-1
Ubuntu:25.10linux-oracle6.17.0-1016.16UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-oracle7.0.0-1005.5USN-8370-1
Ubuntu:26.04:LTSlinux-oracle7.0.0-1005.5UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1016.16~24.04.1USN-8371-1
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1016.16~24.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1054.55~22.04.1USN-8373-1
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1054.55~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-raspi6.8.0-1057.61UBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-raspi6.8.0-1057.61USN-8373-1
Ubuntu:25.10linux-raspi6.17.0-1018.18USN-8371-1
Ubuntu:25.10linux-raspi6.17.0-1018.18UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-raspi7.0.0-1011.11UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-raspi7.0.0-1011.11USN-8370-1
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-47334
Ubuntu:25.10linux-realtime6.17.0-1014.16USN-8371-1
Ubuntu:25.10linux-realtime6.17.0-1014.16UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-realtime7.0.0-22.22.1UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-realtime7.0.0-22.22.1USN-8370-1
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-47334
Ubuntu:25.10linux-riscv6.17.0-35.35.1UBUNTU-CVE-2026-47334
Ubuntu:26.04:LTSlinux-riscv7.0.0-22.22.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-riscv-6.176.17.0-35.35.1~24.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-124.124~22.04.1UBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-47334
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-47334
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1032.33UBUNTU-CVE-2026-47334

Affected products (as reported)

VendorProductVersions
Canonical Ubuntu Linux 6.8.0 – before 6.8.0-124.1246.17.0 – before 6.17.0-35.357.0.0 – before 7.0.0-22.22

Weakness: CWE-833 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References