CVE-2025-40311: accel/habanalabs: support mapping cb with vmalloc-backed coherent memory
accel/habanalabs: support mapping cb with vmalloc-backed coherent memory
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
When mapping vmalloc-backed coherent memory, check whether the address is in the vmalloc range and set VM_MIXEDMAP in the VMA before mapping.
Linux kernel accel/habanalabs mapping VM_MIXEDMAP = set
Event History
Frequently Asked Questions
What is the severity of CVE-2025-40311?
CVE-2025-40311 has been classified with a severity level that can impact systems utilizing IOMMU when dma_alloc_coherent() is invoked with GFP_USER.
How do I fix CVE-2025-40311?
To fix CVE-2025-40311, update your Linux kernel to the latest version that addresses this vulnerability.
Which systems are affected by CVE-2025-40311?
CVE-2025-40311 affects the Linux kernel and the Microsoft azl3 kernel 6.6.112.1-2.
What potential impact does CVE-2025-40311 pose?
CVE-2025-40311 may lead to memory allocation issues that could compromise system stability or performance.
Is there a known exploit for CVE-2025-40311?
As of now, there are no publicly disclosed exploits available for CVE-2025-40311, but mitigation is recommended.