CVE-2025-37948

MEDIUM

Linux Kernel - Branch History Injection via cBPF Program Exit

Title source: llm
STIX 2.1

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.

References (9)

Core 9

Scores

CVSS v3 5.5
EPSS 0.0008
EPSS Percentile 23.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (25)
debian/debian_linux 11.0
linux/Kernel 3.7.0 - 5.10.239linux
linux/Kernel 5.11.0 - 5.15.186linux
linux/Kernel 5.16.0 - 6.1.139linux
linux/Kernel 6.13.0 - 6.14.7linux
linux/Kernel 6.2.0 - 6.6.91linux
linux/Kernel 6.7.0 - 6.12.29linux
Linux/Linux < 3.7
Linux/Linux 0be7320a635c2e434e8b67e0e9474a85ceb421c4 - 0dfefc2ea2f29ced2416017d7e5b1253a54c2735
Linux/Linux 0be7320a635c2e434e8b67e0e9474a85ceb421c4 - 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78
... and 15 more
Published May 20, 2025
Tracked Since Feb 18, 2026