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 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-25)

CWE

CWE-787

Published

2025-09-04

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• debian:debian_linux
• linux:linux_kernel

References

• https://git.kernel.org/stable/c/248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399
• https://git.kernel.org/stable/c/2828a433c7d7a05b6f27c8148502095101dd0b09
• https://git.kernel.org/stable/c/523b84dc7ccea9c4d79126d6ed1cf9033cf83b05
• https://git.kernel.org/stable/c/5c3f5a25c62230b7965804ce7a2e9305c3ca3961
• https://git.kernel.org/stable/c/806f85bdd3a60187c21437fc51baace11f659f35

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