Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2025-38064 First vendor Publication 2025-06-18
Vendor Cve Last vendor Modification 2025-06-18

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

virtio: break and reset virtio devices on device_shutdown()

Hongyu reported a hang on kexec in a VM. QEMU reported invalid memory accesses during the hang.

Invalid read at addr 0x102877002, size 2, region '(null)', reason: rejected
Invalid write at addr 0x102877A44, size 2, region '(null)', reason: rejected
...

It was traced down to virtio-console. Kexec works fine if virtio-console is not in use.

The issue is that virtio-console continues to write to the MMIO even after underlying virtio-pci device is reset.

Additionally, Eric noticed that IOMMUs are reset before devices, if devices are not reset on shutdown they continue to poke at guest memory and get errors from the IOMMU. Some devices get wedged then.

The problem can be solved by breaking all virtio devices on virtio bus shutdown, then resetting them.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-38064

Sources (Detail)

https://git.kernel.org/stable/c/8bd2fa086a04886798b505f28db4002525895203
https://git.kernel.org/stable/c/aee42f3d57bfa37b2716df4584edeecf63b9df4c
Source Url

Alert History

If you want to see full details history, please login or register.
0
Date Informations
2025-06-18 17:20:35
  • First insertion