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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49672net: tun: unlink NAPI from device on destruction

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 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 77.2% 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: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:9kernel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-64k-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-abi-stablelists5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-cross-headers5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-debug-uki-virt5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-doc5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-headers5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-debug5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-debug-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-debug-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-debug-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-rt-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-tools5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-tools-libs5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-tools-libs-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-uki-virt5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-uki-virt-addons5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-zfcpdump5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-zfcpdump-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-zfcpdump-devel5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-zfcpdump-modules5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9libperf5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9perf5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9python3-perf5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9rtla5.14.0-611.5.1.el9_7ALSA-2025:20518
AlmaLinux:9rv5.14.0-611.5.1.el9_7ALSA-2025:20518
Debian:12linux5.18.14-1DEBIAN-CVE-2022-49672
Debian:13linux5.18.14-1DEBIAN-CVE-2022-49672
Debian:14linux5.18.14-1DEBIAN-CVE-2022-49672
Rocky Linux:9kernel0:5.14.0-611.5.1.el9_7RLSA-2025:20518
Ubuntu:22.04:LTSlinux5.15.0-48.54UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-aws5.15.0-1020.24UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-azure5.15.0-1020.25UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1024.30.1UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-gcp5.15.0-1018.24UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-gke5.15.0-1016.19UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1003.5UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-ibm5.15.0-1015.17UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1016.21UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-kvm5.15.0-1018.22UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-48.54UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1007.7UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-oracle5.15.0-1018.23UBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-raspi5.15.0-1015.17UBUNTU-CVE-2022-49672
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49672
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49672

Affected products (as reported)

VendorProductVersions
Linux Linux 943170998b200190f99d3fe7e771437e2c51f319 – before 82e729aee59acefe135fceffadcbc5b86dd4f1b9943170998b200190f99d3fe7e771437e2c51f319 – before a8cf919022373c97a84fe596bbea544f909c485d943170998b200190f99d3fe7e771437e2c51f319 – before bec1be0a745ab420718217e3e0d9542a75108989943170998b200190f99d3fe7e771437e2c51f319 – before 8145f77d38de4f88b8a69e1463f5c09ba189d77c943170998b200190f99d3fe7e771437e2c51f319 – before 8661d4b8faa2f7ee7a559969c0a7c57f077b1728943170998b200190f99d3fe7e771437e2c51f319 – before 3b9bc84d311104906d2b4995a9a02d7b7ddab2db
Linux Linux 4.15

References