A flaw was found in vDPA with VDUSE backend. There are currently no checks in VDUSE kernel driver to ensure the size of the device config space is in line with the features advertised by the VDUSE userspace application. In case of a mismatch, Virtio drivers config read helpers do not initialize the memory indirectly passed to vduse_vdpa_get_config() returning uninitialized memory from the stack. This could cause undefined behavior or data leaks in Virtio drivers.

Related CVEs

CVE-2022-2308

Key Information

GHSA ID

GHSA-6q37-hh76-6rv4

Published

September 2, 2022 12:01 AM

Last Modified

September 8, 2022 12:00 AM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: August 2, 2025 6:46 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.