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Change History

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 cons

Linux https://git.kernel.org/stable/c/25faff78138933244c678c7fc78f7c0340fa04a0 [No types assigned]

Linux https://git.kernel.org/stable/c/66c24699f266ff310381a9552d3576eea8ad6e20 [No types assigned]

Linux https://git.kernel.org/stable/c/89bd620798704a8805fc9db0d71d7f812cf5b3d2 [No types assigned]

Linux https://git.kernel.org/stable/c/c848416cc05afc1589edba04fe00b85c2f797ee3 [No types assigned]

Linux https://git.kernel.org/stable/c/eea53c5816889ee8b64544fa2e9311a81184ff9c [No types assigned]