In the Linux kernel, the following vulnerability has been resolved:
iommu/vt-d: Restore context entry setup order for aliased devices
Commit 2031c469f816 ("iommu/vt-d: Add support for static identity domain") changed the context entry setup during domain attachment from a set-and-check policy to a clear-and-reset approach. This inadvertently introduced a regression affecting PCI aliased devices behind PCIe-to-PCI bridges.
Specifically, keyboard and touchpad stopped working on several Apple Macbooks with below messages:
kernel: platform pxa2xx-spi.3: Adding to iommu group 20 kernel: input: Apple SPI Keyboard as /devices/pci0000:00/0000:00:1e.3/pxa2xx-spi.3/spi_master/spi2/spi-APP000D:00/input/input0 kernel: DMAR: DRHD: handling fault status reg 3 kernel: DMAR: [DMA Read NO_PASID] Request device [00:1e.3] fault addr 0xffffa000 [fault reason 0x06] PTE Read access is not set kernel: DMAR: DRHD: handling fault status reg 3 kernel: DMAR: [DMA Read NO_PASID] Request device [00:1e.3] fault addr 0xffffa000 [fault reason 0x06] PTE Read access is not set kernel: applespi spi-APP000D:00: Error writing to device: 01 0e 00 00 kernel: DMAR: DRHD: handling fault status reg 3 kernel: DMAR: [DMA Read NO_PASID] Request device [00:1e.3] fault addr 0xffffa000 [fault reason 0x06] PTE Read access is not set kernel: DMAR: DRHD: handling fault status reg 3 kernel: applespi spi-APP000D:00: Error writing to device: 01 0e 00 00
Fix this by restoring the previous context setup order.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12-modules-extraUpgrade perf6.12Upgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-libbpf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-libbpf-staticUpgrade bpftoolUpgrade kernel6.12Upgrade kernel-libbpfUpgrade python3-perf6.12Upgrade perf6.12-debuginfoUpgrade kernel6.12-debuginfoUpgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-libbpf-develUpgrade kernel-modules-extra-commonUpgrade kernel-livepatch-6.12.35-55.103Upgrade kernel-headersUpgrade python3-perf6.12-debuginfo | Sep 9, 2025 | Jul 4, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 4, 2025 |
| Suse | — | Upgrade ocfs2-kmp-64kbUpgrade dtb-exynosUpgrade kernel-kvmsmall-develUpgrade ocfs2-kmp-rtUpgrade kernel-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-vdsoUpgrade cluster-md-kmp-defaultUpgrade dtb-apmUpgrade dtb-amlogicUpgrade kernel-sourceUpgrade gfs2-kmp-rtUpgrade kernel-symsUpgrade kernel-macrosUpgrade gfs2-kmp-64kbUpgrade kernel-docs-htmlUpgrade dtb-armUpgrade kernel-64kbUpgrade kernel-default-extraUpgrade kernel-devel-azureUpgrade kernel-default-vdsoUpgrade kselftests-kmp-64kbUpgrade dlm-kmp-64kbUpgrade kernel-syms-azureUpgrade dtb-marvellUpgrade dtb-qcomUpgrade kernel-kvmsmallUpgrade dtb-freescaleUpgrade dtb-broadcomUpgrade kernel-kvmsmall-vdsoUpgrade dtb-lgUpgrade kernel-azure-develUpgrade kernel-default-develUpgrade kernel-obs-qaUpgrade dtb-rockchipUpgrade kernel-preemptUpgrade kernel-source-azureUpgrade dtb-amazonUpgrade kernel-rt-optionalUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-defaultUpgrade kernel-obs-buildUpgrade kernel-default-optionalUpgrade dtb-sprdUpgrade kernel-default-livepatch-develUpgrade kernel-defaultUpgrade kernel-64kb-develUpgrade dlm-kmp-rtUpgrade kernel-rt-extraUpgrade dtb-nvidiaUpgrade cluster-md-kmp-64kbUpgrade kernel-preempt-develUpgrade dlm-kmp-defaultUpgrade kernel-default-livepatchUpgrade kernel-default-baseUpgrade kselftests-kmp-rtUpgrade dtb-allwinnerUpgrade dtb-hisiliconUpgrade ocfs2-kmp-defaultUpgrade dtb-renesasUpgrade dtb-mediatekUpgrade kernel-64kb-optionalUpgrade kernel-64kb-extraUpgrade dtb-alteraUpgrade kernel-rt-develUpgrade kernel-rt-livepatchUpgrade cluster-md-kmp-rtUpgrade kernel-develUpgrade kernel-docsUpgrade dtb-amdUpgrade dtb-xilinxUpgrade gfs2-kmp-defaultUpgrade kernel-source-vanillaUpgrade dtb-appleUpgrade reiserfs-kmp-defaultUpgrade kernel-azureUpgrade dtb-caviumUpgrade dtb-socionext | Dec 5, 2025 | Oct 15, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-1006-realtimeUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-awsUpgrade linux-image-oem-6.14Upgrade linux-image-6.14.0-1009-oracle-64kUpgrade linux-image-oracle-6.14Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-oracle-64k-6.14Upgrade linux-image-6.14.0-1010-azureUpgrade linux-image-generic-64k-6.14Upgrade linux-image-azure-6.14Upgrade linux-image-6.14.0-1011-gcp-64kUpgrade linux-image-realtime-6.14Upgrade linux-image-oracleUpgrade linux-image-realtimeUpgrade linux-image-raspi-6.14Upgrade linux-image-6.14.0-1007-oemUpgrade linux-image-6.14.0-1011-gcpUpgrade linux-image-oem-24.04cUpgrade linux-image-virtualUpgrade linux-image-oem-24.04Upgrade linux-image-6.14.0-1009-raspiUpgrade linux-image-virtual-6.14Upgrade linux-image-oracle-64kUpgrade linux-image-6.14.0-1009-oracleUpgrade linux-image-gcp-6.14Upgrade linux-image-6.14.0-1009-awsUpgrade linux-image-generic-64kUpgrade linux-image-gcpUpgrade linux-image-gcp-64kUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-raspiUpgrade linux-image-azureUpgrade linux-image-aws-64k-6.14Upgrade linux-image-aws-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-6.14.0-1009-aws-64kUpgrade linux-image-genericUpgrade linux-image-6.14.0-24-generic-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-6.14Upgrade linux-image-6.14.0-24-genericUpgrade linux-image-aws-6.14 | Jul 9, 2025 | Jul 4, 2025 |
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