PT-2025-8578 · Linux+2 · Linux Kernel+2

Dmitry Osipenko + 1 · Published 2022-07-04 · Updated 2025-04-15 · CVE-2022-49645

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 issue in the Linux kernel has been identified where calling the madvise IOCTL twice on a Buffer Object (BO) causes memory shrinker list corruption, leading to kernel crashes. This occurs because the BO is added to the list again while it is already present, instead of being removed before re-addition.

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

Exploit

Memory Corruption

Improper Resource Release

Weakness Enumeration

CWE-787

CWE-404

Related Identifiers

BDU:2026-03907

CVE-2022-49645

OPENSUSE-SU-2025_1263-1

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1348

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49645.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:1263-1 · Vendor Advisory
• https://git.kernel.org/stable/c/0581613df7f9a4c5fac096ce1d5fb15b7b994240 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49645 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49645 · Security Note
• https://git.kernel.org/stable/c/9fc33eaaa979d112d10fea729edcd2a2e21aa912 · Patch
• https://git.kernel.org/stable/c/393594aad55179eb761af41533d8d1d6eb4543b0 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49645 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49645 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1194-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/1807d8867402a58b831a7fc16832747ff559a0d1 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory