PT-2025-46636 · Linux+3 · Linux Kernel+3
Published
2025-09-29
·
Updated
2026-03-13
·
CVE-2025-40161
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel driver for mailbox communication on ZynqMP-IPI systems had an issue where it incorrectly identified SGI (System Group Interrupt) versus SPI (System Peripheral Interrupt) interrupts. This was due to a flawed check based on IRQ numbers less than 16, which fails when dynamic IRQ allocation is used. During device unbinding, this led to improper cleanup of SGI resources, potentially causing a kernel crash. The issue was addressed by adding an explicit
irq type field to the platform data to reliably identify SGI interrupts and ensuring SGI resources are only cleaned up when appropriate.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
RCE
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu
Zynqmp-Ipi