Vulnerability in Linux

CVE-2023-54326

In the Linux kernel, the following vulnerability has been resolved: misc: pci_endpoint_test: Free IRQs before removing the device In pci_endpoint_test_remove(), freeing the IRQs after removing the device creates a small race window for IRQs to be received with the test device memory already released, causing the IRQ handler to access invalid memory, resulting in an oops. Free the device IRQs before removing the device to avoid this issue.

EPSS: 0.002 (7.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, 4.19, 0

References

Frequently asked questions

What is CVE-2023-54326?
CVE-2023-54326 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-12-30.
How severe is CVE-2023-54326?
High severity. CVSS v3 base score is 7.8 out of 10.