PT-2025-8126 · Linux+1 · Linux Kernel+1

Yonglong Li · Published 2022-03-17 · Updated 2025-03-03 · CVE-2022-49198

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 crash issue has been identified in the Linux kernel related to the mptcp module. The problem occurs when the system is under memory pressure, causing sk wmem schedule to return false, leading to a crash when trying to release the dst object. This issue is triggered by the mptcp sendmsg frag function and can result in a kernel panic. The estimated number of potentially affected devices is not provided.

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

Exploit

Use After Free

Improper Initialization

Weakness Enumeration

CWE-416

CWE-665

Related Identifiers

BDU:2026-03289

CVE-2022-49198

Affected Products

Astra Linux

Linux Kernel

References · 19

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49198.json · Exploit
• https://git.kernel.org/stable/c/752add6f5ce5305e55d8bda4ac8d69be3a09f14d · Patch
• https://bdu.fstec.ru/vul/2026-03289 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49198 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49198 · Security Note
• https://git.kernel.org/stable/c/4d54181eba4b077fb74033a7186898ad4000a7a5 · Patch
• https://git.kernel.org/stable/c/af61a8f7603926c26158153d0a0755764d82657c · Patch
• https://osv.dev/vulnerability/CVE-2022-49198 · Vendor Advisory
• https://git.kernel.org/stable/c/3ef3905aa3b5b3e222ee6eb0210bfd999417a8cc · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49198 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49198 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49198 · Security Note
• https://ubuntu.com/security/CVE-2022-49198 · Vendor Advisory
• https://lore.kernel.org/linux-cve-announce/2025022617-CVE-2022-49198-98a2@gregkh · Note
• https://git.kernel.org/linus/3ef3905aa3b5b3e222ee6eb0210bfd999417a8cc · Note