Severity
8.8
High severity
Details
- CVSS score
- 8.8
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
vfio/pci: Clean up DMABUFs before disabling function
On device shutdown, make vfio_pci_core_close_device() call vfio_pci_dma_buf_cleanup() before the function is disabled via vfio_pci_core_disable(). This ensures that all access via DMABUFs is revoked before the function’s BARs become inaccessible.
This fixes an issue where, if the function is disabled first, a tiny window exists in which the function’s MSE is cleared and yet BARs could still be accessed via the DMABUF. The resources would also be freed and up for grabs by a different driver.
Details
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 10 | In Rollout |
26 kernels
|
| Oracle Linux 10 | In Rollout |
14 kernels
|
| RHEL 10 | In Rollout |
27 kernels
|
| Rocky Linux 10 | In Rollout |
20 kernels
|