PT-2025-25870 · Linux+3 · Linux Kernel+3

Published 2022-08-23 · Updated 2025-07-15 · CVE-2022-49944

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 regression was introduced in the Linux kernel by a recent commit, causing a NULL dereference when reading the power supply sysfs. This issue arose from a stale sysfs entry that was not removed and had NULL operations. The error handling was changed to skip entries after a NULL condition, resulting in the power device being unreleased. The issue was resolved by reverting the commit.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-02034

CVE-2022-49944

RHSA-2023:0951

RHSA-2023:2458

RHSA-2023:7077

RHSA-2023_2458

SUSE-SU-2025:02264-1

SUSE-SU-2025:02321-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 579

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49944.json · Exploit
• https://cve.org/CVERecord?id=CVE-2022-49944 · Security Note
• https://git.kernel.org/stable/c/5f73aa2cf8bef4a39baa1591c3144ede4788826e · Patch
• https://ubuntu.com/security/CVE-2022-49944 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02321-1 · Vendor Advisory
• https://git.kernel.org/stable/c/3d4044c9e6d2e3f11f1f8b5e0ee8647d3eb1afad · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49944 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49944 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49944 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02034 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49944 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02264-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49944 · Security Note
• https://bugzilla.suse.com/1243627 · Note
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.8 · Note