CVE-2025-39790

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Detect events pointing to unexpected TREs When a remote device sends a completion event to the host, it contains a pointer to the consumed TRE. The host uses this pointer to process all of the TREs between it and the host's local copy of the ring's read pointer. This works when processing completion for chained transactions, but can lead to nasty results if the device sends an event for a single-element transaction with a read pointer that is multiple elements ahead of the host's read pointer. For instance,...

Affected product and versions

Product

Linux Linux, SIMATIC CN 4100, linux kernel

Affected versions

>= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 7b3f0e3b60c27f4fcb69927d84987e5fd6240530, >= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 4079c6c59705b96285219b9efc63cab870d757b7, >= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 5e17429679a8545afe438ce7a82a13a54e8ceabb, >= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 2ec99b922f4661521927eeada76f431eebfbabc4, >= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 44e1a079e18f78d6594a715b0c6d7e18c656f7b9, >= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 5bd398e20f0833ae8a1267d4f343591a2dd20185, >= 5.7, < V5.0, >= 5.7 < 5.15.190, >= 5.16 < 6.1.149, >= 6.2 < 6.6.103, >= 6.7 < 6.12.44, >= 6.13 < 6.16.4, 11.0

Fixed versions

5.15.190, 6.1.149, 6.6.103, 6.12.44, 6.16.4

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-415