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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49234net: dsa: Avoid cross-chip syncing of VLAN filtering

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 83.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.17.3-1DEBIAN-CVE-2022-49234
Debian:13linux5.17.3-1DEBIAN-CVE-2022-49234
Debian:14linux5.17.3-1DEBIAN-CVE-2022-49234
Ubuntu:22.04:LTSlinux5.15.0-202.212USN-8961-1
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-aws5.15.0-1119.126USN-8961-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1119.126UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-azure5.15.0-1125.134UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-azure5.15.0-1125.134USN-8961-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1124.133USN-8962-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1124.133UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-gcp5.15.0-1120.130UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-gcp5.15.0-1120.130USN-8961-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-gke5.15.0-1115.121UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-gke5.15.0-1115.121USN-8961-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1102.110USN-8961-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1102.110UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-ibm5.15.0-1113.117UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-ibm5.15.0-1113.117USN-8961-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1114.120UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1114.120USN-8961-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1111.116USN-8961-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1111.116UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-197.207USN-8961-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-197.207UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1114.115USN-8961-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1114.115UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1070.72UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1070.72USN-8963-1
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1059.59UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1059.59USN-8963-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-oracle5.15.0-1116.122USN-8961-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1116.122UBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-49234
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49234
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2022-49234

Affected products (as reported)

VendorProductVersions
Linux Linux d371b7c92d190448f3ccbf082c90bf929285f648 – before e1f2a4dd8d433eec393d09273a78a3d3551339cfd371b7c92d190448f3ccbf082c90bf929285f648 – before 108dc8741c203e9d6ce4e973367f1bac20c7192b
Linux Linux 5.2

References