CVE-2025-39961 — Race Condition in Linux
Severity
4.7MEDIUMNVD
OSV3.2
EPSS
0.0%
top 98.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 9
Latest updateApr 9
Description
In the Linux kernel, the following vulnerability has been resolved:
iommu/amd/pgtbl: Fix possible race while increase page table level
The AMD IOMMU host page table implementation supports dynamic page table levels
(up to 6 levels), starting with a 3-level configuration that expands based on
IOVA address. The kernel maintains a root pointer and current page table level
to enable proper page table walks in alloc_pte()/fetch_pte() operations.
The IOMMU IOVA allocator initially starts with 32-bi…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6