PT-2025-35958 · Linux+5 · Linux Kernel+5
Published
2025-07-31
·
Updated
2026-04-20
·
CVE-2025-38685
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw in the fbdev subsystem related to an out-of-bounds write in the
fast imageblit() function. This issue occurs when a user-space program performs an ioctl FBIOPUT CON2FBMAP operation, providing a console number and frame buffer number. Specifically, the issue arises during console resizing when a resize operation fails but processing continues with mismatched console and frame buffer data, leading to an out-of-bounds write during screen updates in fbcon putcs().Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Corruption
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu