CVE-2022-50404

MEDIUM

Linux Kernel < 5.15.86 - Memory Leak

Title source: rule

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: release buffer when fbcon_do_set_font() failed syzbot is reporting memory leak at fbcon_do_set_font() [1], for commit a5a923038d70 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") missed that the buffer might be newly allocated by fbcon_set_font().

References (5)

[Patch] https://git.kernel.org/stable/c/5a341810a22e51c3a7a108f7896b5fd58d44d127

[Patch] https://git.kernel.org/stable/c/06926607b9fddf7ce8017493899ce6eb7e79a123

[Patch] https://git.kernel.org/stable/c/3c3bfb8586f848317ceba5d777e11204ba3e5758

[Patch] https://git.kernel.org/stable/c/88ec6d11052da527eb9268831e7a9bc5bbad02f6

[Patch] https://git.kernel.org/stable/c/a609bfc1e644a8467cb31945ed1488374ebdc013

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 2.8%

Attack Vector LOCAL

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

Classification

CWE

CWE-401

Status draft

Affected Products (7)

linux/linux_kernel < 5.15.86

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

Timeline

Published Sep 18, 2025

Tracked Since Feb 18, 2026