What is CVE-2026-53322?

CVE-2026-53322 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 8.8/10. Published 2026-06-26.

How severe is CVE-2026-53322?

High severity. CVSS v3 base score is 8.8 out of 10.

Double Free in Linux

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_close_device() call vfio_pci_dma_buf_cleanup() before the function is disable…

Vulnerability class: Double Free

EPSS: 0.001 (2.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Linux — versions 5d74781ebc86c5fa9e9d6934024c505412de9b52, 6.19, 0
Linux Linux_kernel

Weakness classification (CWE)

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)

Frequently asked questions

What is CVE-2026-53322?: CVE-2026-53322 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 8.8/10. Published 2026-06-26.
How severe is CVE-2026-53322?: High severity. CVSS v3 base score is 8.8 out of 10.