CVE-2025-38429

medium

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.

References

https://git.kernel.org/stable/c/f704a80d9fa268e51a6cc5242714502c3c1fa605

https://git.kernel.org/stable/c/6f18d174b73d0ceeaa341f46c0986436b3aefc9a

https://git.kernel.org/stable/c/44b9620e82bbec2b9a6ac77f63913636d84f96dc

https://git.kernel.org/stable/c/0007ef098dab48f1ba58364c40b4809f1e21b130

Details

Source: Mitre, NVD

Published: 2025-07-25

Updated: 2025-07-25

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:L/AC:H/Au:S/C:P/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 5.8

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

Severity: Medium

EPSS

EPSS: 0.00018