CVE-2025-38533

HIGH EPSS 3.6%
Published Aug 16, 202510mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Aug 16, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

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: 'dma' and 'page_dma'. However, only 'page_dma' was actually initialized and used to program the Rx descriptor. But 'dma' was uninitialized and used in some paths. This could lead to undefined behavior, including DMA errors or use-after-free, if the uninitialized 'dma' was used. Althrough such error has not yet occurred, it is worth fixing in the code.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥6.3  –  <6.6.100
linuxlinux_kernel*≥6.7  –  <6.12.40
linuxlinux_kernel*≥6.13  –  <6.15.8
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/027701180a7bcb64c42eab291133ef0c87b5b6c5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/05c37b574997892a40a0e9b9b88a481566b2367d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fd77cc6bd9b368431a815a780e407b7781bcca0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ba7c793f96c1c2b944bb6f423d7243f3afc30fe9
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/027701180a7bcb64c42eab291133ef0c87b5b6c5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/05c37b574997892a40a0e9b9b88a481566b2367d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fd77cc6bd9b368431a815a780e407b7781bcca0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ba7c793f96c1c2b944bb6f423d7243f3afc30fe9
    Patch