Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.10.239 |
| Debian | Debian Linux | 11.0 |
References
- https://git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735Patch
- https://git.kernel.org/stable/c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78Patch
- https://git.kernel.org/stable/c/42a20cf51011788f04cf2adbcd7681f02bdb6c27Patch
- https://git.kernel.org/stable/c/852b8ae934b5cbdc62496fa56ce9969aa2edda7fPatch
- https://git.kernel.org/stable/c/8fe5c37b0e08a97cf0210bb75970e945aaaeebabPatch
- https://git.kernel.org/stable/c/993f63239c219696aef8887a4e7d3a16bf5a8ecePatch
- https://git.kernel.org/stable/c/c6a8735d841bcb7649734bb3a787bb174c67c0d8Patch
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
FAQ
What is CVE-2025-37948?
CVE-2025-37948 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 infl...
How severe is CVE-2025-37948?
CVE-2025-37948 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-37948?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.