PT-2025-40085 · Linux+5 · Linux Kernel+5
Published
2025-01-01
·
Updated
2026-05-07
·
CVE-2025-39911
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.17.0-rc1+
Description
An issue exists in the Linux kernel related to incorrect IRQ freeing within the i40e network driver. Specifically, when
request irq() fails during the i40e vsi request irq msix() function, the error handling path attempts to free previously requested IRQs using an incorrect device ID (dev id) for the free irq() function. This results in a failure to properly free the IRQs, leading to a warning message: 'Trying to free already-free IRQ'. The issue occurs when requesting Multiple Signal Interrupts (MSI) for a Virtual Switch Interface (VSI). The incorrect dev id argument in the free irq() function prevents the proper release of IRQ resources.Recommendations
Update to a version of the Linux kernel that addresses this issue.
Exploit
Fix
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Suse
Ubuntu
I40E