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CVE-2025-39928

Severity CVSS v4.0:
Pending analysis
Type:
CWE-191 Integer Underflow (Wrap or Wraparound)
Publication date:
01/10/2025
Last modified:
14/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> i2c: rtl9300: ensure data length is within supported range<br /> <br /> Add an explicit check for the xfer length to &amp;#39;rtl9300_i2c_config_xfer&amp;#39;<br /> to ensure the data length isn&amp;#39;t within the supported range. In<br /> particular a data length of 0 is not supported by the hardware and<br /> causes unintended or destructive behaviour.<br /> <br /> This limitation becomes obvious when looking at the register<br /> documentation [1]. 4 bits are reserved for DATA_WIDTH and the value<br /> of these 4 bits is used as N + 1, allowing a data length range of<br /> 1

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.16.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools