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Vulnerability · Published Jun 18, 2025 · Assigned by Linux

CVE-2022-50212netfilter: nf_tables: do not allow CHAIN_ID to refer to another table

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 14% 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 85.6% 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: netfilter: nf_tables: do not allow CHAIN_ID to refer to another table When doing lookups for chains on the same batch by using its ID, a chain from a different table can be used. If a rule is added to a table but refers to a chain in a different table, it will be linked to the chain in table2, but would have expressions referring to objects in table1. Then, when table1 is removed, the rule will not be removed as its linked to a chain in table2. When expressions in the rule are processed or removed, that will lead to a use-after-free. When looking for chains by ID, use the table that was used for the lookup by name, and only return chains belonging to that same table.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.0.2-1DEBIAN-CVE-2022-50212
Debian:13linux6.0.2-1DEBIAN-CVE-2022-50212
Debian:14linux6.0.2-1DEBIAN-CVE-2022-50212
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-50212
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50212
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50212
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50212
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2022-50212

Affected products (as reported)

VendorProductVersions
Linux Linux 837830a4b439bfeb86c70b0115c280377c84714b – before 9e7dcb88ec8e85e4a8ad0ea494ea2f90f32d2583837830a4b439bfeb86c70b0115c280377c84714b – before 91501513016903077f91033fa5d2aa26cac399b2837830a4b439bfeb86c70b0115c280377c84714b – before 0f49613a213d918af790c1276f79da741968de11837830a4b439bfeb86c70b0115c280377c84714b – before 58e863f64ee3d0879297e5e53b646e4b91e59620837830a4b439bfeb86c70b0115c280377c84714b – before 95f466d22364a33d183509629d0879885b4f547e
Linux Linux 5.9

References