CVE-2025-37948
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735 ↗
Additional information
- NVD record
- 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.htmlAdvisory