[ubuntu/jammy-security] linux-gcp-6.8 6.8.0-1043.46~22.04.1 (Accepted)

[Andy Whitcroft]

linux-gcp-6.8 (6.8.0-1043.46~22.04.1) jammy; urgency=medium

  * jammy/linux-gcp-6.8: 6.8.0-1043.46~22.04.1 -proposed tracker (LP: #2127405)

  * Packaging resync (LP: #1786013)
    - [Packaging] gcp-6.8: Remove dwarfdump from Build-Depends

  [ Ubuntu-gcp: 6.8.0-1043.46 ]

  * noble/linux-gcp: 6.8.0-1043.46 -proposed tracker (LP: #2127406)
  * [UBUNTU 24.04] IOMMU DMA mode changed in kernel config causes massive
    throughput degradation for PCI-related network workloads (LP: #2071471) //
    NVIDIA Grace update for Google (Sep 2025) (LP: #2126453)
    - [Packaging] gcp: disable CONFIG_IOMMU_DEFAULT_DMA_STRICT enable
      CONFIG_IOMMU_DEFAULT_DMA_LAZY
  * NVIDIA Grace update for Google (Sep 2025) (LP: #2126453)
    - i2c: tegra: check msg length in SMBUS block read
    - iommu: Skip PASID validation for devices without PASID capability
    - mm/gup: handle NULL pages in unpin_user_pages()
    - cpufreq/cppc: Don't compare desired_perf in target()
  [ Ubuntu: 6.8.0-87.88 ]
  * noble/linux: 6.8.0-87.88 -proposed tracker (LP: #2127436)
  * CVE-2025-37838
    - HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol
      Driver Due to Race Condition
  * VMSCAPE CVE-2025-40300 (LP: #2124105) // CVE-2025-40300
    - Documentation/hw-vuln: Add VMSCAPE documentation
    - x86/vmscape: Enumerate VMSCAPE bug
    - x86/vmscape: Add conditional IBPB mitigation
    - x86/vmscape: Enable the mitigation
    - x86/bugs: Move cpu_bugs_smt_update() down
    - x86/vmscape: Warn when STIBP is disabled with SMT
    - x86/vmscape: Add old Intel CPUs to affected list
  * VMSCAPE CVE-2025-40300 (LP: #2124105)
    - [Config] Enable MITIGATION_VMSCAPE config
  * CVE-2025-38352
    - posix-cpu-timers: fix race between handle_posix_cpu_timers() and
      posix_cpu_timer_del()
  * CVE-2025-38118
    - Bluetooth: MGMT: Fix UAF on mgmt_remove_adv_monitor_complete
    - Bluetooth: MGMT: Fix sparse errors

Date: 2025-10-22 16:22:13.882509+00:00
Changed-By: Austin Rhodes <austin.rhodes at canonical.com>
Signed-By: Andy Whitcroft <apw at canonical.com>
https://launchpad.net/ubuntu/+source/linux-gcp-6.8/6.8.0-1043.46~22.04.1
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