CVE-2025-39794

kernel: ARM: tegra: Use I/O memcpy to write to IRAM

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Severity

Moderate

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · September 12, 2025

Updated · June 30, 2026

Description

A flaw exists in the Linux kernel’s ARM Tegra IRAM handling,a copy operation using the standard memcpy function allows the kernel address-sanitizer (KASAN) to trigger a crash when checking memory boundaries, leading to damage to system availability.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer