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Vulnerability · Published Aug 16, 2025 · Assigned by Linux

CVE-2025-38514rxrpc: Fix oops due to non-existence of prealloc backlog struct

High 7.5

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 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 66.2% 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: rxrpc: Fix oops due to non-existence of prealloc backlog struct If an AF_RXRPC service socket is opened and bound, but calls are preallocated, then rxrpc_alloc_incoming_call() will oops because the rxrpc_backlog struct doesn't get allocated until the first preallocation is made. Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no backlog struct. This will cause the incoming call to be aborted.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.147-1DEBIAN-CVE-2025-38514
Debian:13linux6.12.41-1DEBIAN-CVE-2025-38514
Debian:14linux6.16.3-1DEBIAN-CVE-2025-38514
Ubuntu:22.04:LTSlinux5.15.0-156.166UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-aws5.15.0-1092.99UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1017.17~24.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure5.15.0-1096.105UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-azure-6.146.14.0-1017.17~24.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1096.105.1UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-38514
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-gcp5.15.0-1092.101UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1020.21~24.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-gke5.15.0-1089.95UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1075.83UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-ibm5.15.0-1086.89UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1087.93UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-kvm5.15.0-1088.93UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-156.166UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1087.88UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1045.45UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1034.34UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1016.16UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-oracle5.15.0-1090.96UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1017.17~24.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-raspi5.15.0-1086.89UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-36.36.1~24.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38514
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-38514
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1056.60UBUNTU-CVE-2025-38514

Affected products (as reported)

VendorProductVersions
Linux Linux 248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before bf0ca6a1bc4fb904b598137c6718785a107e3adf248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before f7afb3ff01c42c49e8a143cdce400b95844bb506248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before f5e72b7824d08c206ce106d30cb37c4642900ccc248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before 0eef29385d715d4c7fd707b18d4a9b76c76dd5e6248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before efc1b2b7c1a308b60df8f36bc2d7ce16d3999364248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before d1ff5f9d2c5405681457262e23c720b08977c11f248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before 2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3248f219cb8bcbfbd7f132752d44afa2df7c241d1 – before 880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4
Linux Linux 4.9

References