CVE-2022-50404

MEDIUM

Linux Kernel 5.15.64-5.15.86 - Use-After-Free in fbcon_do_set_font

Title source: llm
STIX 2.1

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)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0015
EPSS Percentile 4.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (16)
Linux/Linux < 6.0
Linux/Linux 5.15.64 - 5.15.86
Linux/Linux 5.15.86 - 5.15.*
Linux/Linux 5.19.6 - 5.20
Linux/Linux 6.0
Linux/Linux 6.0.16 - 6.0.*
Linux/Linux 6.1.2 - 6.1.*
Linux/Linux 6.2
Linux/Linux 868749a7456dc48e93887a8474194e2ee6d6c21f - 5a341810a22e51c3a7a108f7896b5fd58d44d127
Linux/Linux a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24 - 06926607b9fddf7ce8017493899ce6eb7e79a123
... and 6 more
Published Sep 18, 2025
Tracked Since Feb 18, 2026