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.
References
Configurations
Configuration 1 (hide)
|
History
09 Jan 2025, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CWE | NVD-CWE-noinfo | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| References | () https://git.kernel.org/stable/c/25faff78138933244c678c7fc78f7c0340fa04a0 - Patch | |
| References | () https://git.kernel.org/stable/c/66c24699f266ff310381a9552d3576eea8ad6e20 - Patch | |
| References | () https://git.kernel.org/stable/c/89bd620798704a8805fc9db0d71d7f812cf5b3d2 - Patch | |
| References | () https://git.kernel.org/stable/c/c848416cc05afc1589edba04fe00b85c2f797ee3 - Patch | |
| References | () https://git.kernel.org/stable/c/eea53c5816889ee8b64544fa2e9311a81184ff9c - Patch |
Information
Published : 2024-02-28 09:15
Updated : 2025-01-24 16:15
NVD link : CVE-2021-47035
Mitre link : CVE-2021-47035
CVE.ORG link : CVE-2021-47035
JSON object : View
Products Affected
linux
- linux_kernel
CWE