CVE-2022-49234

HIGH EPSS 12.9%
Published Feb 26, 20251y ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: net: dsa: Avoid cross-chip syncing of VLAN filtering Changes to VLAN filtering are not applicable to cross-chip notifications. On a system like this: .-----. .-----. .-----. | sw1 +---+ sw2 +---+ sw3 | '-1-2-' '-1-2-' '-1-2-' Before this change, upon sw1p1 leaving a bridge, a call to dsa_port_vlan_filtering would also be made to sw2p1 and sw3p1. In this scenario: .---------. .-----. .-----. | sw1 +---+ sw2 +---+ sw3 | '-1-2-3-4-' '-1-2-' '-1-2-' When sw1p4 would leave a bridge, dsa_port_vlan_filtering would be called for sw2 and sw3 with a non-existing port - leading to array out-of-bounds accesses and crashes on mv88e6xxx.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
linuxlinux_kernel*≥5.2  –  <5.17.2

References 2

  • git.kernel.org https://git.kernel.org/stable/c/108dc8741c203e9d6ce4e973367f1bac20c7192b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e1f2a4dd8d433eec393d09273a78a3d3551339cf
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/108dc8741c203e9d6ce4e973367f1bac20c7192b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e1f2a4dd8d433eec393d09273a78a3d3551339cf
    Patch