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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
5d74781ebc86c5fa9e9d6934024c505412de9b52 affected < 4f1000a30f67cf7d328059242776a858611d5ef9
5d74781ebc86c5fa9e9d6934024c505412de9b52 affected < d97708701434ce72968e771976aaf9d3438fcafd
Linux Linux affected
Version Status Constraints
6.19 affected —
0 unaffected < 6.19
7.0.10 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

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Fixes

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Workaround

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References
Link Providers
https://git.kernel.org/stable/c/4f1000a30f67cf7d328059242776a858611d5ef9 cve-icon
https://git.kernel.org/stable/c/d97708701434ce72968e771976aaf9d3438fcafd cve-icon
History

Fri, 26 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
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.
Title vfio/pci: Clean up DMABUFs before disabling function
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-26T19:41:13.245Z

Reserved: 2026-06-09T07:44:35.398Z

Link: CVE-2026-53322

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.