Vulnerability · Published Nov 12, 2025 · Assigned by Linux

CVE-2025-40170net: use dst_dev_rcu() in sk_setup_caps()

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 9% 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 90.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: net: use dst_dev_rcu() in sk_setup_caps() Use RCU to protect accesses to dst->dev from sk_setup_caps() and sk_dst_gso_max_size(). Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(), and ip_dst_mtu_maybe_forward(). ip4_dst_hoplimit() can use dst_dev_net_rcu().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:8kernel4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-debug5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-debug-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-debug-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-debug-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-devel-matched5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-64k-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:10kernel-abi-stablelists6.12.0-124.31.1.el10_1ALSA-2026:1690
AlmaLinux:8kernel-abi-stablelists4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-abi-stablelists5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-core4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-cross-headers4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-cross-headers5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-debug4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-debug5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-debug-core4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-debug-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-debug-devel4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-debug-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-debug-devel-matched5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-debug-modules4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-debug-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-debug-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-debug-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-debug-uki-virt5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-devel4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-devel-matched5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:10kernel-doc6.12.0-124.31.1.el10_1ALSA-2026:1690
AlmaLinux:8kernel-doc4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-doc5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-headers4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-headers5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-modules4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-modules-extra4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-debug5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-core4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-debug4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-debug5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-debug-core4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-debug-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-debug-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-debug-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-devel4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-modules4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-rt-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.104.1.rt7.445.el8_10ALSA-2026:2378
AlmaLinux:9kernel-rt-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-tools4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-tools5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-tools-libs4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-tools-libs5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-tools-libs-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-uki-virt5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-uki-virt-addons5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-zfcpdump4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-zfcpdump5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-zfcpdump-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-zfcpdump-devel5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-zfcpdump-modules5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9libperf5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8perf4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9perf5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:8python3-perf4.18.0-553.104.1.el8_10ALSA-2026:2264
AlmaLinux:9python3-perf5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9rtla5.14.0-611.30.1.el9_7ALSA-2026:2212
AlmaLinux:9rv5.14.0-611.30.1.el9_7ALSA-2026:2212
Debian:12linuxno fix listedDEBIAN-CVE-2025-40170
Debian:13linux6.12.69-1DEBIAN-CVE-2025-40170
Debian:13linux6.12.69-1DSA-6126-1
Debian:14linux6.17.6-1DEBIAN-CVE-2025-40170
Rocky Linux:10kernel0:6.12.0-124.31.1.el10_1RLSA-2026:1690
Rocky Linux:8kernel0:4.18.0-553.104.1.el8_10RLSA-2026:2264
Rocky Linux:9kernel0:5.14.0-611.30.1.el9_7RLSA-2026:2212
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2025-40170
Ubuntu:25.10linux6.17.0-14.14UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-40170
Ubuntu:25.10linux-aws6.17.0-1007.7UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-40170
Ubuntu:25.10linux-azure6.17.0-1008.8UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-40170
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-40170
Ubuntu:25.10linux-gcp6.17.0-1007.7UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1008.8~24.04.1UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1008.8UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1035.38UBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-40170
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-40170
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1011.11UBUNTU-CVE-2025-40170

Affected products (as reported)

VendorProductVersions
Linux Linux 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 13b0e14bfa7e6d506d8d6426b9e6d7feef01ded34a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 9f22b5f7f1a32f8bbcc82bf34e34ea63523fcd024a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 5d1be493d1110c9e720b4c51a6e587bb2fb4ac124a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before a805729c0091073d8f0415cfa96c7acd1bc17a484a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 99a2ace61b211b0be861b07fbaa062fca4b58879
Linux Linux 4.13

References