CVE-2025-38702Out-of-bounds Write in Linux

CWE-787Out-of-bounds Write21 documents8 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 95.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedSep 4
Latest updateMar 25

Description

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 vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

NVDlinux/linux_kernel2.6.12.16.1.149+5
Debianlinux/linux_kernel< 6.1.153-1+2
CVEListV5linux/linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac25c3f5a25c62230b7965804ce7a2e9305c3ca3961+6

Also affects: Debian Linux 11.0

Patches

🔴Vulnerability Details

3
GHSA
GHSA-wrfw-2xr6-c3p7: In the Linux kernel, the following vulnerability has been resolved: fbdev: fix potential buffer overflow in do_register_framebuffer() The current im2025-09-05
OSV
CVE-2025-38702: In the Linux kernel, the following vulnerability has been resolved: fbdev: fix potential buffer overflow in do_register_framebuffer() The current impl2025-09-04
CVEList
fbdev: fix potential buffer overflow in do_register_framebuffer()2025-09-04

📋Vendor Advisories

17
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-25
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Xilinx) vulnerabilities2026-02-24
Ubuntu
Linux kernel (IBM) vulnerabilities2026-02-24
CVE-2025-38702 — Out-of-bounds Write in Linux | cvebase