Heap Overwrite Vulnerability in Linux Kernel Affecting RapidIO Drivers
CVE-2025-38090

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 30 June 2025

What is CVE-2025-38090?

A vulnerability in the Linux Kernel's RapidIO driver allows for a potential heap overwrite due to inadequate validation in the riocm_ch_send() function. Specifically, while cm_chan_msg_send() appropriately checks for excessive data input from userspace, it fails to ensure that enough data has been transferred, leading to the possibility of overwriting adjacent memory regions. This vulnerability can compromise data integrity and system stability. The issue has been addressed by updating riocm_ch_send() to verify that the entire rio_ch_chan_hdr is correctly copied from userspace, thereby enhancing the safety of memory operations.

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