Cette page suit l'état du correctif pour Ubuntu. La vulnérabilité elle-même est décrite sur la page CVE principale. Voir CVE-2026-97900 →
Catégories
UBUNTU-CVE-2026-97900

In the Linux kernel, the following vulnerability has been resolved: drm/drm_exec: fix up contended obj when num_objects is 0 drm_exec_prepare_array()...

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/drm_exec: fix up contended obj when num_objects is 0 drm_exec_prepare_array() silently returns success without calling drm_exec_lock_contended() when num_objects is zero. This breaks the invariant upheld by drm_exec_lock_obj(), where every entry point into the locking sequence must first attempt to lock any previously contended object before proceeding. Drivers that chain multiple drm_exec_prepare_array() calls per drm_exec_until_all_locked() iteration (e.g. amdgpu's userq signal/wait ioctls, which prepare separate read and write BO arrays) can pass an empty array for one of the two calls. If contention is hit while preparing the non-empty array, exec->contended is set and the loop retries; on retry, the empty-array call preceding it is a no-op that never clears exec->contended, so drm_exec_retry_on_contention() immediately jumps back to the top of the loop without ever reaching the call that would resolve the contention. This spins forever. Fix it by having drm_exec_prepare_array() call drm_exec_lock_contended() directly when num_objects is zero, so a pending contended object dont loop infinitely.

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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