CVE-2025-39794 Details
Description
In the Linux kernel, the following vulnerability has been resolved: ARM: tegra: Use I/O memcpy to write to IRAM Kasan crashes the kernel trying to check boundaries when using the normal memcpy.
A vulnerability has been identified in the Linux kernel's ARM Tegra architecture, where the standard memory copy function (memcpy) is used to write to internal RAM (IRAM). This approach causes the kernel to crash while the memory error detection tool, KASAN, attempts to verify memory boundaries. The issue arises because the normal memcpy does not account for specific hardware requirements, leading to a kernel panic.
The vulnerability has been addressed by changing the memory copy function from the standard 'memcpy' to 'memcpy_toio', which is appropriate for writing to I/O memory regions. Users should apply the latest patches available in the Linux kernel stable tree to mitigate this issue.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.4, < 5.4.297 >= 5.5, < 5.10.241 >= 5.11, < 5.15.190 >= 5.16, < 6.1.149 >= 6.2, < 6.6.103 >= 6.7, < 6.12.43 >= 6.13, < 6.15.11 >= 6.16, < 6.16.2 |
CPE
Remediation
| |
| debian debian linux | 11.0 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | siemens-SADP |
| May 12, 2026 | CVE Modified | siemens-SADP |
| Jan 23, 2026 | Initial Analysis | [email protected] |
| Nov 3, 2025 | CVE Modified | CVE |
| Sep 12, 2025 | New CVE Received | kernel.org |