Log in Start free

Vulnerability · Published Oct 28, 2025 · Assigned by Linux

CVE-2025-40074ipv4: start using dst_dev_rcu()

Critical 9.8

In plain English

A critical-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 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 59.9% 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: ipv4: start using dst_dev_rcu() Change icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF. Change ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(), ipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.190-1DEBIAN-CVE-2025-40074
Debian:13linux6.12.107-1DEBIAN-CVE-2025-40074
Debian:14linux6.17.6-1DEBIAN-CVE-2025-40074
Debian:12linux-6.126.12.107-1~deb12u1DEBIAN-CVE-2025-40074
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux6.17.0-14.14USN-8029-1
Ubuntu:25.10linux6.17.0-14.14UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-aws6.17.0-1007.7UBUNTU-CVE-2025-40074
Ubuntu:25.10linux-aws6.17.0-1007.7USN-8029-2
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-azure6.17.0-1008.8UBUNTU-CVE-2025-40074
Ubuntu:25.10linux-azure6.17.0-1008.8USN-8029-3
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-gcp6.17.0-1007.7USN-8030-1
Ubuntu:25.10linux-gcp6.17.0-1007.7UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1008.8~24.04.1UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1008.8UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1035.38UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1011.11UBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1011.11USN-8048-1
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-oracle6.17.0-1007.7UBUNTU-CVE-2025-40074
Ubuntu:25.10linux-oracle6.17.0-1007.7USN-8029-2
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-raspi6.17.0-1008.8USN-8029-1
Ubuntu:25.10linux-raspi6.17.0-1008.8UBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-realtime6.17.0-1006.7UBUNTU-CVE-2025-40074
Ubuntu:25.10linux-realtime6.17.0-1006.7USN-8029-1
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-40074
Ubuntu:25.10linux-riscv6.17.0-14.14.1UBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2025-40074
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2025-40074
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2025-40074

Affected products (as reported)

VendorProductVersions
Linux Linux 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 864155c164654110f68a17a63bd0339754790d674a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before e150f273cd8ed34ebc6d03758aad95c12fc583374a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 684efb2c86c887685f9aa65e1a21b3df6c1f822d4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 923e0734c386984d45de508528a7a7ad91d791cc4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 – before 6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8
Linux Linux 4.13

References