CVE-2025-38702 Affecting linux-6.1 package, versions <6.1.153-1~deb11u1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-DEBIAN11-LINUX61-13542151
  • published14 Oct 2025
  • disclosed4 Sept 2025

Introduced: 4 Sep 2025

CVE-2025-38702  (opens in a new tab)

How to fix?

Upgrade Debian:11 linux-6.1 to version 6.1.153-1~deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-6.1 package and not the linux-6.1 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

fbdev: fix potential buffer overflow in do_register_framebuffer()

The current implementation may lead to buffer overflow when:

  1. Unregistration creates NULL gaps in registered_fb[]
  2. All array slots become occupied despite num_registered_fb < FB_MAX
  3. The registration loop exceeds array bounds

Add boundary check to prevent registered_fb[FB_MAX] access.

CVSS Base Scores

version 3.1