PT-2025-8162 · Linux+1 · Linux Kernel+1

Tobias Waldekranz · Published 2022-01-01 · Updated 2026-05-26 · CVE-2022-49234

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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

Description A vulnerability in the Linux kernel has been resolved, related to VLAN filtering in the network subsystem. The issue occurs when changes to VLAN filtering are not properly handled for cross-chip notifications, leading to array out-of-bounds accesses and crashes on certain systems, such as those using the mv88e6xxx chip. This happens when a port leaves a bridge, causing the dsa port vlan filtering function to be called with a non-existing port.

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

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

AZL-67623

BDU:2026-03860

CVE-2022-49234

OESA-2025-2407

OESA-2025-2408

Affected Products

Debian

Linux Kernel

References · 44

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49234.json · Exploit
• https://ubuntu.com/security/CVE-2022-49234 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39752 · Security Note
• https://osv.dev/vulnerability/CVE-2022-49234 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38615 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38313 · Security Note
• https://osv.dev/vulnerability/AZL-67623 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-49234 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39865 · Security Note
• https://osv.dev/vulnerability/OESA-2025-2408 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2407 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53286 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49234 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38086 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-21801 · Security Note