CVE-2025-38158 hisi_acc_vfio_pci: fix XQE dma address error
Incorrect DMA address handling in the HiSilicon accelerator VFIO driver causes guest kernel encryption service failures after migration.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-38158?
CVE-2025-38158 is a medium-severity vulnerability in Debian Debian Linux, published on 3 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
hisi_acc_vfio_pci: fix XQE dma address error
The dma addresses of EQE and AEQE are wrong after migration and results in guest kernel-mode encryption services failure. Comparing the definition of hardware registers, we found that there was an error when the data read from the register was combined into an address. Therefore, the address combination sequence needs to be corrected.
Even after fixing the above problem, we still have an issue where the Guest from an old kernel can get migrated to new kernel and may result in wrong data.
In order to ensure that the address is correct after migration, if an old magic number is detected, the dma address needs to be updated.
Which versions are affected by CVE-2025-38158?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-38158?
Apply the vendor's patch.
Is CVE-2025-38158 being exploited?
There is no known exploitation of CVE-2025-38158 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-64613, BELL-CVE-2025-38158, DEBIAN-CVE-2025-38158, GHSA-rm48-vm2g-7vqr, ROOT-OS-DEBIAN-12-CVE-2025-38158, ROOT-OS-UBUNTU-2404-CVE-2025-38158 and 1 more.