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Vulnerability · Published Sep 18, 2025 · Assigned by Linux

CVE-2022-50404fbdev: fbcon: release buffer when fbcon_do_set_font() failed

Medium 5.5

In plain English

A medium-severity memory leak in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 94.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.4-1DEBIAN-CVE-2022-50404
Debian:13linux6.1.4-1DEBIAN-CVE-2022-50404
Debian:14linux6.1.4-1DEBIAN-CVE-2022-50404
Ubuntu:22.04:LTSlinux5.15.0-69.76UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-aws5.15.0-1033.37UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-azure5.15.0-1035.42UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1035.42.1UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-gcp5.15.0-1031.38UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-gke5.15.0-1030.35UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1017.22UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-ibm5.15.0-1027.30UBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1027.32UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-kvm5.15.0-1030.35UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-69.76UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1023.23UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-oracle5.15.0-1032.38UBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-raspi5.15.0-1026.28UBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50404
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50404
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50404

Affected products (as reported)

VendorProductVersions
Linux Linux 868749a7456dc48e93887a8474194e2ee6d6c21f – before 5a341810a22e51c3a7a108f7896b5fd58d44d127ebd6f886aa2447fcfcdce5450c9e1028e1d681bb – before 88ec6d11052da527eb9268831e7a9bc5bbad02f6a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24 – before 06926607b9fddf7ce8017493899ce6eb7e79a123a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24 – before a609bfc1e644a8467cb31945ed1488374ebdc013a5a923038d70d2d4a86cb4e3f32625a5ee6e7e24 – before 3c3bfb8586f848317ceba5d777e11204ba3e5758f08ccb792d3eaf1dc62d8cbf6a30d6522329f6605.15.64 – before 5.15.865.19.6 – before 5.20
Linux Linux 6.0

Weakness: CWE-401 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References