Cette page suit l'état du correctif pour Ubuntu. La vulnérabilité elle-même est décrite sur la page CVE principale. Voir CVE-2026-89819 →
Catégories
UBUNTU-CVE-2026-89819

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: validate plane degamma LUT size for private color prop Unlike the...

Description d'origine

La description telle que publiée par la source (souvent en anglais).

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: validate plane degamma LUT size for private color prop Unlike the CRTC degamma path, which is guarded by amdgpu_dm_verify_lut_sizes(), the per-plane degamma LUT size was never validated before use. __set_dm_plane_degamma() passed the user-supplied size straight into __is_lut_linear() and, for a non-linear LUT, into __set_input_tf() -> __drm_lut_to_dc_gamma(), the latter always iterating MAX_COLOR_LUT_ENTRIES entries regardless of the actual LUT size. A malformed AMD_PLANE_DEGAMMA_LUT blob (e.g. a single entry) could thus trigger a divide-by-zero in __is_lut_linear() or an out-of-bounds read in __drm_lut_to_dc_gamma(). Reject any plane degamma LUT whose size does not match MAX_COLOR_LUT_ENTRIES, mirroring the invariant the code already asserts a few lines below (and which the CRTC path enforces). The AMD_PLANE_DEGAMMA_LUT property is only exposed on builds with AMD_PRIVATE_COLOR defined.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Paquets affectés

Ubuntu:16.04:LTS linux-hwe-edge
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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:18.04:LTS linux-azure
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Ubuntu:18.04:LTS linux-azure-5.3
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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:18.04:LTS linux-gcp-5.3
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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:18.04:LTS linux-hwe-edge
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Ubuntu:18.04:LTS linux-oem
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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:20.04:LTS linux-aws-5.11
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Ubuntu:20.04:LTS linux-aws-5.13
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Ubuntu:20.04:LTS linux-aws-5.8
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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:20.04:LTS linux-azure-5.8
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Ubuntu:20.04:LTS linux-azure-fde
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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: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:20.04:LTS linux-hwe-5.8
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Ubuntu:20.04:LTS linux-intel-5.13
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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:20.04:LTS linux-oracle-5.11
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Ubuntu:20.04:LTS linux-oracle-5.13
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Ubuntu:20.04:LTS linux-oracle-5.8
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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:20.04:LTS linux-riscv-5.8
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Ubuntu:22.04:LTS linux-allwinner-5.19
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Ubuntu:22.04:LTS linux-aws-5.19
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Ubuntu:22.04:LTS linux-aws-6.2
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Ubuntu:22.04:LTS linux-aws-6.5
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Ubuntu:22.04:LTS linux-aws-6.8
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Ubuntu:22.04:LTS linux-azure-5.19
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Ubuntu:22.04:LTS linux-azure-6.2
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Ubuntu:22.04:LTS linux-azure-6.5
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Ubuntu:22.04:LTS linux-azure-6.8
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Ubuntu:22.04:LTS linux-azure-fde-5.19
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Ubuntu:22.04:LTS linux-azure-fde-6.2
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Ubuntu:22.04:LTS linux-azure-fde-6.8
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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-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-6.8
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Ubuntu:22.04:LTS linux-intel-iot-realtime
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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-6.2
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Ubuntu:22.04:LTS linux-nvidia-6.5
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Ubuntu:22.04:LTS linux-nvidia-6.8
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Ubuntu:22.04:LTS linux-oem-5.17
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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 linux-oracle-6.5
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Ubuntu:22.04:LTS linux-oracle-6.8
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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:Pro:Realtime:22.04:LTS linux-realtime-6.8
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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
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Ubuntu:24.04:LTS linux-azure-6.14
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Ubuntu:24.04:LTS linux-azure-6.17
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Ubuntu:24.04:LTS linux-azure-7.0
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Ubuntu:24.04:LTS linux-azure-fde
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Ubuntu:24.04:LTS linux-azure-fde-6.14
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Ubuntu:24.04:LTS linux-azure-fde-6.17
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Ubuntu:24.04:LTS linux-azure-fde-7.0
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Ubuntu:24.04:LTS linux-azure-nvidia
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Ubuntu:24.04:LTS linux-azure-nvidia-6.14
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Ubuntu:24.04:LTS linux-gcp
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Ubuntu:24.04:LTS linux-gcp-6.11
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Ubuntu:24.04:LTS linux-gcp-6.14
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Ubuntu:24.04:LTS linux-gcp-6.17
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Ubuntu:24.04:LTS linux-gcp-7.0
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Ubuntu:24.04:LTS linux-gke
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Ubuntu:24.04:LTS linux-gkeop
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Ubuntu:24.04:LTS linux-hwe-6.11
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Ubuntu:24.04:LTS linux-hwe-6.14
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Ubuntu:24.04:LTS linux-hwe-6.17
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Ubuntu:24.04:LTS linux-hwe-7.0
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Ubuntu:24.04:LTS linux-ibm
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Ubuntu:24.04:LTS linux-lowlatency
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Ubuntu:24.04:LTS linux-lowlatency-hwe-6.11
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Ubuntu:24.04:LTS linux-nvidia
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Ubuntu:24.04:LTS linux-nvidia-6.11
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Ubuntu:24.04:LTS linux-nvidia-6.17
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Ubuntu:24.04:LTS linux-nvidia-7.0
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Ubuntu:24.04:LTS linux-nvidia-lowlatency
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Ubuntu:24.04:LTS linux-nvidia-tegra
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Ubuntu:24.04:LTS linux-oem-6.11
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Ubuntu:24.04:LTS linux-oem-6.14
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Ubuntu:24.04:LTS linux-oem-6.17
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Ubuntu:24.04:LTS linux-oem-6.8
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Ubuntu:24.04:LTS linux-oracle
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Ubuntu:24.04:LTS linux-oracle-6.14
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Ubuntu:24.04:LTS linux-oracle-6.17
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Ubuntu:24.04:LTS linux-oracle-7.0
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Ubuntu:24.04:LTS linux-raspi
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Ubuntu:24.04:LTS linux-raspi-realtime
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Ubuntu:24.04:LTS linux-realtime
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Ubuntu:24.04:LTS linux-riscv
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Ubuntu:24.04:LTS linux-riscv-6.14
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Ubuntu:24.04:LTS linux-riscv-6.17
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Ubuntu:24.04:LTS linux-riscv-7.0
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Ubuntu:24.04:LTS linux-vmware
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Ubuntu:24.04:LTS linux-xilinx
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Ubuntu:Nvidia-BlueField:24.04:LTS linux-bluefield
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Ubuntu:Pro:Realtime:24.04:LTS linux-raspi-realtime
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Ubuntu:Pro:Realtime:24.04:LTS linux-realtime
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Ubuntu:Pro:Realtime:24.04:LTS linux-realtime-6.14
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Ubuntu:Pro:Realtime:24.04:LTS linux-realtime-6.17
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Ubuntu:Pro:FIPS-updates:24.04:LTS linux-aws-fips
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Ubuntu:Pro:FIPS-updates:24.04:LTS linux-azure-fips
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Ubuntu:Pro:FIPS-updates:24.04:LTS linux-fips
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Ubuntu:Pro:FIPS-updates:24.04:LTS linux-gcp-fips
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Ubuntu:26.04:LTS linux
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Ubuntu:26.04:LTS linux-aws
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Ubuntu:26.04:LTS linux-azure
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Ubuntu:26.04:LTS linux-azure-fde
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Ubuntu:26.04:LTS linux-gcp
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Ubuntu:26.04:LTS linux-gke
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Ubuntu:26.04:LTS linux-ibm
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Ubuntu:26.04:LTS linux-nvidia
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Ubuntu:26.04:LTS linux-nvidia-bos
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Ubuntu:26.04:LTS linux-oem-7.0
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Ubuntu:26.04:LTS linux-oracle
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Ubuntu:26.04:LTS linux-raspi
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Ubuntu:26.04:LTS linux-realtime
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Ubuntu:26.04:LTS linux-riscv
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Références

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