CVE-2026-53322

Published Jun 26, 2026

Last updated a month ago

CVSS high 8.8

Overview

Description
In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Clean up DMABUFs before disabling function On device shutdown, make vfio_pci_core_close_device() call vfio_pci_dma_buf_cleanup() before the function is disabled via vfio_pci_core_disable(). This ensures that all access via DMABUFs is revoked before the function's BARs become inaccessible. This fixes an issue where, if the function is disabled first, a tiny window exists in which the function's MSE is cleared and yet BARs could still be accessed via the DMABUF. The resources would also be freed and up for grabs by a different driver.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Analyzed
Products
linux_kernel

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.8
Impact score
6
Exploitability score
2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Severity
HIGH

Weaknesses

nvd@nist.gov
CWE-415
0b0ca135-0b70-47e7-9f44-1890c2a1c46c
CWE-826

Social media

Hype score
Not currently trending

  1. 🚨*CVE* CVE-2026-53322 In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Clean up DMABUFs before disabling function On device shutdown, make vfio_pci_core_clos… https://t.co/fZWr2cN19z ----- Traducción: CVE-2026-53322 En … https://t.co/utmtNg

    @infoflowcloud

    27 Jun 2026

    28 Impressions

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Configurations

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References

Sources include official advisories and independent security research.