CVE-2025-38429

MEDIUM

Linux Kernel 5.19-6.19 - Use of Uninitialized Resource in MHI Endpoint Ring Buffer

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: ep: Update read pointer only after buffer is written Inside mhi_ep_ring_add_element, the read pointer (rd_offset) is updated before the buffer is written, potentially causing race conditions where the host sees an updated read pointer before the buffer is actually written. Updating rd_offset prematurely can lead to the host accessing an uninitialized or incomplete element, resulting in data corruption. Invoke the buffer write before updating rd_offset to ensure the element is fully written before signaling its availability.

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 4.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-908
Status published
Products (14)
linux/Kernel 5.19.0 - 6.6.95linux
linux/Kernel 6.13.0 - 6.15.4linux
linux/Kernel 6.7.0 - 6.12.35linux
Linux/Linux < 5.19
Linux/Linux 5.19
Linux/Linux 6.12.35 - 6.12.*
Linux/Linux 6.15.4 - 6.15.*
Linux/Linux 6.16
Linux/Linux 6.6.95 - 6.6.*
Linux/Linux bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 - 0007ef098dab48f1ba58364c40b4809f1e21b130
... and 4 more
Published Jul 25, 2025
Tracked Since Feb 18, 2026