PT-2025-18487 · Linux+2 · Linux Kernel+2

Published 2022-11-14 · Updated 2025-08-18 · CVE-2022-49770

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 resolved, specifically in the ceph component, where decoding snaps fails and potentially causes "first realm" and realm to point to the same snaprealm memory. This could lead to random use-after-free, BUG ON, etc., issues due to the realm being repeated.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2026-04555

CVE-2022-49770

SUSE-SU-2025:01918-1

SUSE-SU-2025:01966-1

SUSE-SU-2025:01982-1

SUSE-SU-2025:01995-1

SUSE-SU-2025:02173-1

SUSE-SU-2025:02262-1

SUSE-SU-2025:02588-1

SUSE-SU-2025:02849-1

SUSE-SU-2025:02851-1

SUSE-SU-2025:02852-1

SUSE-SU-2025:2173-1

SUSE-SU-2025:2588-1

SUSE-SU-2025_01982-1

SUSE-SU-2025_02173-1

SUSE-SU-2025_02262-1

SUSE-SU-2025_02588-1

SUSE-SU-2025_02849-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 628

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49770.json · Exploit
• https://git.kernel.org/stable/c/cb7495fe957526555782ce0723f79ce92a6db22e · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49770 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02852-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02849-1 · Vendor Advisory
• https://git.kernel.org/stable/c/fd879c83e87735ab8f00ef7755752cf0cbae24b2 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:01982-1 · Vendor Advisory
• https://git.kernel.org/stable/c/51884d153f7ec85e18d607b2467820a90e0f4359 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49770 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02173-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:01966-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49770 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02262-1 · Vendor Advisory
• https://git.kernel.org/stable/c/274e4c79a3a2a24fba7cfe0e41113f1138785c37 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02588-1 · Vendor Advisory