PT-2025-8523 · Linux+3 · Linux Kernel+3

Kuniyuki Iwashima · Published 2023-05-09 · Updated 2025-05-20 · CVE-2022-49590

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/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 data-race issue exists around the sysctl igmp llm reports variable in the Linux kernel. This occurs because the variable can be changed concurrently while being read, potentially leading to inconsistent results. To address this, the use of READ ONCE() is necessary for readers of sysctl igmp llm reports. The issue is related to the handling of IPv4 local multicast addresses.

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

Exploit

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2022-49590

RHSA-2023:2458

RHSA-2023_2458

SUSE-SU-2025:01600-1

SUSE-SU-2025_01600-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 233

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49590.json · Exploit
• https://git.kernel.org/stable/c/473aad9ad57ff760005377e6f45a2ad4210e08ce · Patch
• https://git.kernel.org/stable/c/1656ecaddf90e2a070ec2d2404cdae3edf80faca · Patch
• https://git.kernel.org/stable/c/a84b4afaca2573ed3aed1f8854aefe3ca5a82e72 · Patch
• https://ubuntu.com/security/CVE-2022-49590 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:01600-1 · Vendor Advisory
• https://git.kernel.org/stable/c/ed876e99ccf417b8bd7fd8408ba5e8b008e46cc8 · Patch
• https://git.kernel.org/stable/c/260446eb8e5541402b271343a4516f2b33dec1e4 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49590 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49590 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-49590 · Security Note
• https://git.kernel.org/stable/c/d77969e7d4ccc26bf1f414a39ef35050a83ba6d5 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49590 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49590 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49590 · Vendor Advisory