The vulnerability of the fbcon_do_set_font() function in the drivers/video/fbdev/core/fbcon.c driver for kernel-based graphics buffer devices in the Linux operating system allows a hacker to gain access to protected information or cause service failures.

The vulnerability of the fbcondosetfont function in the drivers/video/fbdev/core/fbcon.c driver for kernel-based graphics buffer devices in the Linux operating system is related to the execution of operations outside of the buffer’s boundaries. Exploiting this vulnerability could allow an attacke...

CVE-2026-53402: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: fix out-of-bounds read in errout of fbcondosetfont When fbcondosetfont fails e.g., due to a memory allocation failure inside vcresize under heavy memory pressure, it jumps to the errout label to roll back the consol...

CVE-2025-39967: Integer Overflow or Wraparound

In the Linux kernel, the following vulnerability has been resolved: fbcon: fix integer overflow in fbcondosetfont Fix integer overflow vulnerabilities in fbcondosetfont where font size calculations could overflow when handling user-controlled font parameters. The vulnerabilities occur when: 1...

CVE-2022-50404: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: release buffer when fbcondosetfont failed syzbot is reporting memory leak at fbcondosetfont 1, for commit a5a923038d70 "fbdev: fbcon: Properly revert changes when vcresize failed" missed that the buffer might be new...

CVE-2024-26798

A vulnerability was found in the Linux kernel in the framebuffer console fbcon. Thefbcondosetfont function failed to restore the old font data correctly. This flaw could lead to improper font rendering and display issues on the console. Mitigation Mitigation for this issue is either not available...

CVE-2024-26798

In the Linux kernel, the following vulnerability has been resolved: fbcon: always restore the old font data in fbcondosetfont Commit a5a923038d70 fbdev: fbcon: Properly revert changes when vcresize failed started restoring old font data upon failure of vcresize. But it performs so only for user...

CVE-2024-26798

In the Linux kernel, the following vulnerability has been resolved: fbcon: always restore the old font data in fbcondosetfont Commit a5a923038d70 fbdev: fbcon: Properly revert changes when vcresize failed started restoring old font data upon failure of vcresize. But it performs so only for user...

GSD-2023-1000978 fbdev: fbcon: release buffer when fbcon_do_set_font() failed

fbdev: fbcon: release buffer when fbcondosetfont failed This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.86 by commit...