CVE-2025-38702

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 v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399	Patch
https://git.kernel.org/stable/c/2828a433c7d7a05b6f27c8148502095101dd0b09	Patch
https://git.kernel.org/stable/c/523b84dc7ccea9c4d79126d6ed1cf9033cf83b05	Patch
https://git.kernel.org/stable/c/5c3f5a25c62230b7965804ce7a2e9305c3ca3961	Patch
https://git.kernel.org/stable/c/806f85bdd3a60187c21437fc51baace11f659f35	Patch
https://git.kernel.org/stable/c/cbe740de32bb0fb7a5213731ff5f26ea6718fca3	Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:-::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc2::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc3::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc4::::::
	cpe:2.3:o:linux:linux_kernel:2.6.12:rc5::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-09-04 16:15

Updated : 2026-01-23 20:31

NVD link : CVE-2025-38702

Mitre link : CVE-2025-38702

CVE.ORG link : CVE-2025-38702

JSON object : View

Products Affected

debian

debian_linux

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

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