VDB
DEBIAN-CVE-2025-40311
DEBIAN-CVE-2025-40311
PUBLISHED
CVSS 8.699999809265137 HIGH
In the Linux kernel, the following vulnerability has been resolved: accel/habanalabs: support mapping cb with vmalloc-backed coherent memory When IOMMU is enabled, dma_alloc_coherent() with GFP_USER may return addresses from the vmalloc range. If such an address is mapped without VM_MIXEDMAP, vm_insert_page() will trigger a BUG_ON due to the VM_PFNMAP restriction. Fix this by checking for vmalloc addresses and setting VM_MIXEDMAP in the VMA before mapping. This ensures safe mapping and avoids kernel crashes. The memory is still driver-allocated and cannot be accessed directly by userspace.
Risk Scores
CVSS 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | 6.18.9-1, 6.17.7-2, 6.17.8-1 |
| Debian:13 | linux | 6.12.63-1, 6.12.57-1, 6.12.57-1 |
| Debian:11 | linux | 6.1.112-1, 6.18.5-1, 6.18.5-1 |
| Debian:14 | linux | *, 6.12.38-1, 6.16.7-1 |
Exploit Intelligence
- 4081.3.7.yml (github-poc)
Timeline
- Dec 8, 2025 CVE Published
- Apr 28, 2026 CVE Updated