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Vulnerability · Published May 20, 2025 · Assigned by Linux

CVE-2025-37948arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs

Medium 5.5

In plain English

A medium-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 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 88.8% 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: arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs A malicious BPF program may manipulate the branch history to influence what the hardware speculates will happen next. On exit from a BPF program, emit the BHB mititgation sequence. This is only applied for 'classic' cBPF programs that are loaded by seccomp.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.140-1DSA-5925-1
Debian:12linux6.1.140-1DEBIAN-CVE-2025-37948
Debian:13linux6.12.29-1DEBIAN-CVE-2025-37948
Debian:14linux6.12.29-1DEBIAN-CVE-2025-37948
Ubuntu:22.04:LTSlinux5.15.0-156.166UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux5.15.0-156.166USN-7774-1
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-aws5.15.0-1092.99UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-aws5.15.0-1092.99USN-7774-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1011.11~24.04.1USN-7699-1
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1011.11~24.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure5.15.0-1096.105UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure5.15.0-1096.105USN-7775-2
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1096.105.1UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-37948
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-gcp5.15.0-1092.101UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-gcp5.15.0-1092.101USN-7774-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1014.15~24.04.1UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1014.15~24.04.1USN-7699-1
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-gke5.15.0-1089.95USN-7774-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1089.95UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1075.83USN-7774-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1075.83UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-hwe-6.146.14.0-28.28~24.04.1USN-7699-2
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-ibm5.15.0-1086.89UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-ibm5.15.0-1086.89USN-7774-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1087.93UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1087.93USN-7774-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1088.93UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-kvm5.15.0-1088.93USN-7774-4
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-156.166USN-7774-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-156.166UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1087.88UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1087.88USN-7774-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1045.45USN-7774-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1045.45UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1034.34UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1034.34USN-7774-5
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1010.10USN-7699-2
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1010.10UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-oracle5.15.0-1090.96USN-7774-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1090.96UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1011.11~24.04.1USN-7699-1
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1011.11~24.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-raspi5.15.0-1086.89USN-7774-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1086.89UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-28.28.1~24.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-37948
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-37948
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1056.60USN-7774-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1056.60UBUNTU-CVE-2025-37948

Affected products (as reported)

VendorProductVersions
Linux Linux 0be7320a635c2e434e8b67e0e9474a85ceb421c4 – before c6a8735d841bcb7649734bb3a787bb174c67c0d80be7320a635c2e434e8b67e0e9474a85ceb421c4 – before 993f63239c219696aef8887a4e7d3a16bf5a8ece0be7320a635c2e434e8b67e0e9474a85ceb421c4 – before 8fe5c37b0e08a97cf0210bb75970e945aaaeebab0be7320a635c2e434e8b67e0e9474a85ceb421c4 – before 42a20cf51011788f04cf2adbcd7681f02bdb6c270be7320a635c2e434e8b67e0e9474a85ceb421c4 – before 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf780be7320a635c2e434e8b67e0e9474a85ceb421c4 – before 852b8ae934b5cbdc62496fa56ce9969aa2edda7f0be7320a635c2e434e8b67e0e9474a85ceb421c4 – before 0dfefc2ea2f29ced2416017d7e5b1253a54c2735
Linux Linux 3.7

References