In the Linux kernel, the following vulnerability has been resolved:
iommu/vt-d: Remove WO permissions on second-level paging entries
When the first level page table is used for IOVA translation, it only supports Read-Only and Read-Write permissions. The Write-Only permission is not supported as the PRESENT bit (implying Read permission) should always set. When using second level, we still give separate permissions that allows WriteOnly which seems inconsistent and awkward. We want to have consistent behavior. After moving to 1st level, we don't want things to work sometimes, and break if we use 2nd level for the same mappings. Hence remove this configuration.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade python-perfUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-tools-develUpgrade perf-debuginfo | May 28, 2024 | Feb 28, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Feb 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 28, 2024 |
| Suse | — | Upgrade kernel-macrosUpgrade kernel-64kbUpgrade kernel-zfcpdumpUpgrade kernel-preemptUpgrade kernel-symsUpgrade kernel-default-develUpgrade kernel-sourceUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-default-baseUpgrade kernel-obs-buildUpgrade kernel-64kb-develUpgrade kernel-develUpgrade kernel-preempt-develUpgrade reiserfs-kmp-default | Aug 9, 2024 | Feb 28, 2024 |
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