CVE-2025-38533

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

16/08/2025

Last modified:

18/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix the using of Rx buffer DMA The wx_rx_buffer structure contained two DMA address fields: &#39;dma&#39; and &#39;page_dma&#39;. However, only &#39;page_dma&#39; was actually initialized and used to program the Rx descriptor. But &#39;dma&#39; was uninitialized and used in some paths. This could lead to undefined behavior, including DMA errors or use-after-free, if the uninitialized &#39;dma&#39; was used. Althrough such error has not yet occurred, it is worth fixing in the code.

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.3 (including)	6.6.100 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.40 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.15.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.16:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.16:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.16:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.16:rc4::::::
cpe:2.3:o:linux:linux_kernel:6.16:rc5::::::
cpe:2.3:o:linux:linux_kernel:6.16:rc6::::::

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

CVE-2025-38533

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools