このページは Ubuntu 向けの修正状況です。脆弱性そのものの説明は CVE 本体のページにあります。
CVE-2026-97905 の詳細 →
UBUNTU-CVE-2026-97905
In the Linux kernel, the following vulnerability has been resolved: cpufreq: zero-initialize policy cpumask before sysfs publication cpufreq_policy_al...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
In the Linux kernel, the following vulnerability has been resolved: cpufreq: zero-initialize policy cpumask before sysfs publication cpufreq_policy_alloc() allocates policy->cpus with alloc_cpumask_var(), i.e. without __GFP_ZERO, unlike the sibling related_cpus and real_cpus masks. With CONFIG_CPUMASK_OFFSTACK=y the mask is a separate kmalloc_node() allocation, so its bitmap holds whatever the slab allocator left behind: cpufreq_online() cpufreq_policy_alloc() alloc_cpumask_var(&policy->cpus) /* bitmap is uninitialized / kobject_init_and_add() / policy%u/ appears in sysfs / cpufreq_policy_online() cpumask_copy(policy->cpus, cpumask_of(cpu)) / first valid value */ This leaves a window in which the sysfs attributes are already reachable while policy->cpus is still garbage. show()/store() gate on policy_is_inactive(), i.e. cpumask_empty(policy->cpus), so a non-zero bitmap makes them run the attribute callbacks on a policy that is not initialized yet. Fix this by using zalloc_cpumask_var() for policy->cpus.
出典: OSV.dev (Open Source Vulnerabilities) OSV
影響パッケージ
Ubuntu:Pro:14.04:LTS
linux-aws
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Ubuntu:Pro:14.04:LTS
linux-azure
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Ubuntu:Pro:14.04:LTS
linux-lts-xenial
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Ubuntu:Pro:16.04:LTS
linux
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Ubuntu:Pro:16.04:LTS
linux-aws
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Ubuntu:Pro:16.04:LTS
linux-aws-hwe
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Ubuntu:Pro:16.04:LTS
linux-azure
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Ubuntu:Pro:16.04:LTS
linux-gcp
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Ubuntu:Pro:16.04:LTS
linux-hwe
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Ubuntu:16.04:LTS
linux-hwe-edge
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Ubuntu:Pro:16.04:LTS
linux-kvm
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Ubuntu:Pro:16.04:LTS
linux-oracle
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Ubuntu:Pro:FIPS-updates:16.04:LTS
linux-fips
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Ubuntu:Pro:FIPS:16.04:LTS
linux-fips
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Ubuntu:Pro:18.04:LTS
linux
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Ubuntu:Pro:18.04:LTS
linux-aws
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Ubuntu:18.04:LTS
linux-aws-5.0
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Ubuntu:18.04:LTS
linux-aws-5.3
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Ubuntu:Pro:18.04:LTS
linux-aws-5.4
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Ubuntu:18.04:LTS
linux-azure
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Ubuntu:Pro:18.04:LTS
linux-azure-4.15
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Ubuntu:18.04:LTS
linux-azure-5.3
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Ubuntu:Pro:18.04:LTS
linux-azure-5.4
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Ubuntu:18.04:LTS
linux-azure-edge
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Ubuntu:18.04:LTS
linux-gcp
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Ubuntu:Pro:18.04:LTS
linux-gcp-4.15
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Ubuntu:18.04:LTS
linux-gcp-5.3
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Ubuntu:Pro:18.04:LTS
linux-gcp-5.4
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Ubuntu:18.04:LTS
linux-gke-4.15
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Ubuntu:18.04:LTS
linux-gke-5.4
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Ubuntu:18.04:LTS
linux-gkeop-5.4
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Ubuntu:18.04:LTS
linux-hwe
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Ubuntu:Pro:18.04:LTS
linux-hwe-5.4
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Ubuntu:18.04:LTS
linux-hwe-edge
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Ubuntu:Pro:18.04:LTS
linux-ibm-5.4
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Ubuntu:Pro:18.04:LTS
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Ubuntu:18.04:LTS
linux-oem
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Ubuntu:Pro:18.04:LTS
linux-oracle
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Ubuntu:18.04:LTS
linux-oracle-5.0
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Ubuntu:18.04:LTS
linux-oracle-5.3
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Ubuntu:Pro:18.04:LTS
linux-oracle-5.4
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Ubuntu:Pro:18.04:LTS
linux-raspi-5.4
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Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-fips
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Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-gcp-fips
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Ubuntu:Pro:FIPS:18.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS:18.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS:18.04:LTS
linux-fips
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Ubuntu:Pro:FIPS:18.04:LTS
linux-gcp-fips
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Ubuntu:Pro:20.04:LTS
linux
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Ubuntu:Pro:20.04:LTS
linux-aws
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Ubuntu:20.04:LTS
linux-aws-5.11
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Ubuntu:20.04:LTS
linux-aws-5.13
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Ubuntu:Pro:20.04:LTS
linux-aws-5.15
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Ubuntu:20.04:LTS
linux-aws-5.8
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Ubuntu:Pro:20.04:LTS
linux-azure
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Ubuntu:20.04:LTS
linux-azure-5.11
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Ubuntu:20.04:LTS
linux-azure-5.13
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Ubuntu:Pro:20.04:LTS
linux-azure-5.15
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Ubuntu:20.04:LTS
linux-azure-5.8
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Ubuntu:20.04:LTS
linux-azure-fde
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Ubuntu:Pro:20.04:LTS
linux-azure-fde-5.15
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Ubuntu:Pro:20.04:LTS
linux-bluefield
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Ubuntu:Pro:20.04:LTS
linux-gcp
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Ubuntu:20.04:LTS
linux-gcp-5.11
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Ubuntu:20.04:LTS
linux-gcp-5.13
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Ubuntu:Pro:20.04:LTS
linux-gcp-5.15
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Ubuntu:20.04:LTS
linux-gcp-5.8
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Ubuntu:20.04:LTS
linux-gke
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Ubuntu:20.04:LTS
linux-gke-5.15
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Ubuntu:20.04:LTS
linux-gkeop
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Ubuntu:20.04:LTS
linux-gkeop-5.15
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Ubuntu:20.04:LTS
linux-hwe-5.11
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Ubuntu:20.04:LTS
linux-hwe-5.13
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Ubuntu:Pro:20.04:LTS
linux-hwe-5.15
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Ubuntu:20.04:LTS
linux-hwe-5.8
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Ubuntu:Pro:20.04:LTS
linux-ibm
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Ubuntu:Pro:20.04:LTS
linux-ibm-5.15
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Ubuntu:20.04:LTS
linux-intel-5.13
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Ubuntu:Pro:20.04:LTS
linux-intel-iotg-5.15
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Ubuntu:Pro:20.04:LTS
linux-iot
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Ubuntu:Pro:20.04:LTS
linux-kvm
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Ubuntu:Pro:20.04:LTS
linux-lowlatency-hwe-5.15
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Ubuntu:Pro:20.04:LTS
linux-nvidia-tegra-5.15
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Ubuntu:20.04:LTS
linux-oem-5.10
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Ubuntu:20.04:LTS
linux-oem-5.13
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Ubuntu:20.04:LTS
linux-oem-5.14
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Ubuntu:20.04:LTS
linux-oem-5.6
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Ubuntu:Pro:20.04:LTS
linux-oracle
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Ubuntu:20.04:LTS
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Ubuntu:20.04:LTS
linux-oracle-5.13
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Ubuntu:Pro:20.04:LTS
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Ubuntu:20.04:LTS
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Ubuntu:Pro:20.04:LTS
linux-raspi
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Ubuntu:20.04:LTS
linux-raspi2
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Ubuntu:20.04:LTS
linux-riscv
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Ubuntu:20.04:LTS
linux-riscv-5.11
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Ubuntu:Pro:20.04:LTS
linux-riscv-5.15
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Ubuntu:20.04:LTS
linux-riscv-5.8
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Ubuntu:Pro:20.04:LTS
linux-xilinx-zynqmp
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-fips
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-gcp-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-gcp-fips
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Ubuntu:22.04:LTS
linux
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Ubuntu:22.04:LTS
linux-allwinner-5.19
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Ubuntu:22.04:LTS
linux-aws
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
linux-azure
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
linux-azure-6.2
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
linux-azure-fde-6.8
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Ubuntu:22.04:LTS
linux-gcp
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Ubuntu:22.04:LTS
linux-gcp-5.19
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Ubuntu:22.04:LTS
linux-gcp-6.2
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Ubuntu:22.04:LTS
linux-gcp-6.5
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Ubuntu:22.04:LTS
linux-gcp-6.8
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Ubuntu:22.04:LTS
linux-gke
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Ubuntu:22.04:LTS
linux-gkeop
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Ubuntu:22.04:LTS
linux-hwe-5.19
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Ubuntu:22.04:LTS
linux-hwe-6.2
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Ubuntu:22.04:LTS
linux-hwe-6.5
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Ubuntu:22.04:LTS
linux-hwe-6.8
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Ubuntu:22.04:LTS
linux-ibm
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Ubuntu:22.04:LTS
linux-ibm-6.8
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Ubuntu:22.04:LTS
linux-intel-iot-realtime
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Ubuntu:22.04:LTS
linux-intel-iotg
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Ubuntu:22.04:LTS
linux-kvm
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
linux-lowlatency-hwe-5.19
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Ubuntu:22.04:LTS
linux-lowlatency-hwe-6.2
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Ubuntu:22.04:LTS
linux-lowlatency-hwe-6.5
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Ubuntu:22.04:LTS
linux-lowlatency-hwe-6.8
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Ubuntu:22.04:LTS
linux-nvidia
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Ubuntu:22.04:LTS
linux-nvidia-6.2
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Ubuntu:22.04:LTS
linux-nvidia-6.5
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
linux-nvidia-tegra
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
linux-oem-6.0
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Ubuntu:22.04:LTS
linux-oem-6.1
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Ubuntu:22.04:LTS
linux-oem-6.5
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
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Ubuntu:22.04:LTS
linux-raspi
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Ubuntu:22.04:LTS
linux-realtime
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Ubuntu:22.04:LTS
linux-riscv
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Ubuntu:22.04:LTS
linux-riscv-5.19
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Ubuntu:22.04:LTS
linux-riscv-6.5
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Ubuntu:22.04:LTS
linux-riscv-6.8
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Ubuntu:22.04:LTS
linux-starfive-5.19
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Ubuntu:22.04:LTS
linux-starfive-6.2
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Ubuntu:22.04:LTS
linux-starfive-6.5
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Ubuntu:22.04:LTS
linux-xilinx-zynqmp
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Ubuntu:Nvidia-BlueField:22.04:LTS
linux-bluefield
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Ubuntu:Pro:Realtime:22.04:LTS
linux-intel-iot-realtime
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Ubuntu:Pro:Realtime:22.04:LTS
linux-realtime
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Ubuntu:Pro:Realtime:22.04:LTS
linux-realtime-6.8
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Ubuntu:Pro:FIPS-preview:22.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS-preview:22.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS-preview:22.04:LTS
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Ubuntu:Pro:FIPS-preview:22.04:LTS
linux-gcp-fips
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Ubuntu:Pro:FIPS-updates:22.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS-updates:22.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS-updates:22.04:LTS
linux-fips
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Ubuntu:Pro:FIPS-updates:22.04:LTS
linux-gcp-fips
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Ubuntu:24.04:LTS
linux
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Ubuntu:24.04:LTS
linux-aws
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Ubuntu:24.04:LTS
linux-aws-6.14
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Ubuntu:24.04:LTS
linux-aws-6.17
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Ubuntu:24.04:LTS
linux-aws-7.0
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Ubuntu:24.04:LTS
linux-azure
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Ubuntu:24.04:LTS
linux-azure-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-fde
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-fde-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-fde-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-fde-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-nvidia
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-azure-nvidia-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gcp-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gcp-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gcp-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gcp-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gke
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gkeop
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-hwe-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-hwe-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-hwe-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-hwe-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-ibm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-lowlatency-hwe-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-nvidia
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-nvidia-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-nvidia-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-nvidia-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-nvidia-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-nvidia-tegra
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oem-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oem-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oem-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oem-6.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oracle-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oracle-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oracle-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-raspi
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-raspi-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-riscv
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-riscv-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-riscv-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-riscv-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-vmware
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-xilinx
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Nvidia-BlueField:24.04:LTS
linux-bluefield
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:Realtime:24.04:LTS
linux-raspi-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:Realtime:24.04:LTS
linux-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:Realtime:24.04:LTS
linux-realtime-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:Realtime:24.04:LTS
linux-realtime-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:24.04:LTS
linux-aws-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:24.04:LTS
linux-azure-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:24.04:LTS
linux-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:24.04:LTS
linux-gcp-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-aws
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-azure
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-azure-fde
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-gcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-gke
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-ibm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-nvidia
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-nvidia-bos
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-oem-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-raspi
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
linux-riscv
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
参照URL
- report ubuntu.com
- report cve.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org