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.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade kernel-headersUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade bpftoolUpgrade perfUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade 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-defaultUpgrade kernel-64kb-develUpgrade kernel-obs-buildUpgrade kernel-preempt-develUpgrade reiserfs-kmp-defaultUpgrade kernel-default-baseUpgrade kernel-develUpgrade kernel-symsUpgrade kernel-macrosUpgrade kernel-zfcpdumpUpgrade kernel-preemptUpgrade kernel-docsUpgrade kernel-default-develUpgrade kernel-64kbUpgrade kernel-source | Aug 9, 2024 | Feb 28, 2024 |
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