PT-2025-25915 · Linux+2 · Linux Kernel+2

Published 2022-08-25 · Updated 2025-07-28 · CVE-2022-49989

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:A/AC:L/Au:S/C:N/I:N/A:C

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

Description The issue is related to the error exit of privcmd ioctl dm op() in the Linux kernel, specifically in the xen/privcmd module. This error exit potentially calls unlock pages() with pages being NULL, leading to a NULL dereference. Additionally, lock pages() does not check if pin user pages fast() has been completely successful, which may result in not locking all pages into memory. This could cause sporadic failures when using the related memory in user mode.

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

Exploit

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

BDU:2026-02801

CVE-2022-49989

OESA-2025-1820

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-2025:02537-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

SUSE-SU-2025_02308-1

SUSE-SU-2025_02537-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 645

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49989.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-38063 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50084 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49989 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49918 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49907 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-37911 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50087 · Security Note
• https://git.kernel.org/stable/c/6de50db104af0dc921f593fd95c55db86a52ceef · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02308-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50085 · Security Note
• https://osv.dev/vulnerability/CVE-2022-49989 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49964 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38023 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49989 · Security Note