CVE-2025-37948
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 20, 2025
First seenMay 20, 2025
How to fix
Update
- linux linux_kernel5.10.239, 5.15.186, 6.1.139, 6.6.91, 6.12.29, 6.14.7 or later
Patches
- git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735
- git.kernel.org/stable/c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78
- git.kernel.org/stable/c/42a20cf51011788f04cf2adbcd7681f02bdb6c27
- git.kernel.org/stable/c/852b8ae934b5cbdc62496fa56ce9969aa2edda7f
- git.kernel.org/stable/c/8fe5c37b0e08a97cf0210bb75970e945aaaeebab
- git.kernel.org/stable/c/993f63239c219696aef8887a4e7d3a16bf5a8ece
- git.kernel.org/stable/c/c6a8735d841bcb7649734bb3a787bb174c67c0d8
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.10.239, 5.11 ≤ v < 5.15.186, 5.16 ≤ v < 6.1.139, 6.2 ≤ v < 6.6.91, 6.7 ≤ v < 6.12.29, 6.13 ≤ v < 6.14.7, 6.15 | 5.10.239, 5.15.186, 6.1.139, 6.6.91, 6.12.29, 6.14.7 |
| debian debian_linux | 11.0 | — |
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