PT-2025-25946 · Linux+6 · Linux Kernel+6

Published 2022-08-02 · Updated 2025-11-13 · CVE-2022-50020

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel has been resolved, specifically in the ext4 filesystem. The issue occurred when attempting to resize the filesystem to a size that is not integral to the cluster size, resulting in a corrupted in-memory superblock. This happened because the last iteration of the online resize attempted to grow the filesystem by a negative amount, triggering a BUG ON.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-1284

CWE-834

Related Identifiers

ALSA-2025:12752

ALSA-2025:12753

BDU:2026-02366

CESA-2025_12752

CESA-2025_12753

CVE-2022-50020

INFSA-2025_12752

INFSA-2025_12753

RHSA-2023:2458

RHSA-2023_2458

RHSA-2025:12752

RHSA-2025:12753

RHSA-2025:13776

RHSA-2025:13805

RHSA-2025:14054

RHSA-2025:14094

RHSA-2025:14136

RHSA-2025:14418

RHSA-2025:14746

RHSA-2025:14748

RHSA-2025_12752

RHSA-2025_12753

SUSE-SU-2025:02264-1

SUSE-SU-2025:02308-1

SUSE-SU-2025:02320-1

SUSE-SU-2025:02321-1

SUSE-SU-2025:02322-1

SUSE-SU-2025:02334-1

SUSE-SU-2025:02537-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

SUSE-SU-2025_02308-1

SUSE-SU-2025_02334-1

SUSE-SU-2025_02537-1

Affected Products

Almalinux

Astra Linux

Centos

Linux Kernel

Red Hat

Rocky Linux

Suse

References · 768

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50020.json · Exploit
• https://git.kernel.org/stable/c/952b3dc02baaae6a69c71c0aca23e06741182d9a · Patch
• https://git.kernel.org/stable/c/69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd · Patch
• https://git.kernel.org/stable/c/0082e99a9074ff88eff729c70c93454c8588d8e1 · Patch
• https://git.kernel.org/stable/c/53f62a4201be1cfc1e3c971e566888b182c3ffb0 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02334-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02366 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02321-1 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2025:12752 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50020 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50020 · Security Note
• https://git.kernel.org/stable/c/a6805b3dcf5cd41f2ae3a03dca43411135b99849 · Patch
• https://osv.dev/vulnerability/ALSA-2025:12752 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2025-12752.html · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2025-12753.html · Vendor Advisory