CVE-2025-38158 Information

Jul 04, 2025 cve

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.

Reference

https://git.kernel.org/stable/c/7710c883eb8cb5cf510ca47ec0e26c6cb7e94a4f https://git.kernel.org/stable/c/809a9c10274e1bcf6d05f1c0341459a425a4f05f https://git.kernel.org/stable/c/884a76e813178778d271fea59783763d32bb7e72 https://git.kernel.org/stable/c/8bb7170c5a055ea17c6857c256ee73c10ff872eb https://git.kernel.org/stable/c/f0423873e7aeb69cb68f4e8fa3827832e7b037ba

CNNVD-202507-243 (Published: 2025-07-03)

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