CVE-2025-40311
Description
AI Translation Available
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.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0002
Percentile
0,0th
Updated
EPSS Score Trend (Last 2 Days)
https://git.kernel.org/stable/c/513024d5a0e34fd34247043f1876b6138ca52847
https://git.kernel.org/stable/c/73c7c2cdb442fc4160d2a2a4bfffbd162af06cb9
https://git.kernel.org/stable/c/7ec8ac9f73d4a9438c2186768d6de27ace37531e
https://git.kernel.org/stable/c/d1dfe21a332d38a6a09658ec29a55940afb5fe36