Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2026-53322

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
26/06/2026
Last modified:
30/06/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> vfio/pci: Clean up DMABUFs before disabling function<br /> <br /> On device shutdown, make vfio_pci_core_close_device() call<br /> vfio_pci_dma_buf_cleanup() before the function is disabled via<br /> vfio_pci_core_disable(). This ensures that all access via DMABUFs is<br /> revoked before the function&amp;#39;s BARs become inaccessible.<br /> <br /> This fixes an issue where, if the function is disabled first, a tiny<br /> window exists in which the function&amp;#39;s MSE is cleared and yet BARs<br /> could still be accessed via the DMABUF. The resources would also be<br /> freed and up for grabs by a different driver.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH

References to Advisories, Solutions, and Tools