PT-2025-8568 · Linux+4 · Linux Kernel+4

Published 2022-01-01 · Updated 2026-05-07 · CVE-2022-49635

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A subtraction overflow bug has been resolved in the Linux kernel. The issue occurs when hole end is small enough to cause a subtraction overflow, or when (addr + 2 * min alignment) overflows, particularly in mock tests. This bug has been fixed with a patch.

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

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-120

Related Identifiers

BDU:2026-01504

CVE-2022-49635

SUSE-SU-2025:01983-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_01983-1

SUSE-SU-2025_1241-1

USN-8141-1

USN-8163-1

USN-8163-2

USN-8243-1

Affected Products

Debian

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 2038

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49635.json · Exploit
• https://ubuntu.com/security/CVE-2025-37849 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8163-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68800 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40110 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23097 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22058 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-46830 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68746 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40121 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40088 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-22984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-71097 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-71064 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:01983-1 · Vendor Advisory