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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < c6a8735d841bcb7649734bb3a787bb174c67c0d8; >= 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 993f63239c219696aef8887a4e7d3a16bf5a8ece; >= 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 8fe5c37b0e08a97cf0210bb75970e945aaaeebab; >= 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 42a20cf51011788f04cf2adbcd7681f02bdb6c27; >= 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78; >= 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 852b8ae934b5cbdc62496fa56ce9969aa2edda7f; >= 0be7320a635c2e434e8b67e0e9474a85ceb421c4, < 0dfefc2ea2f29ced2416017d7e5b1253a54c2735 |
| Linux | Linux | 3.7 |
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
Timeline
- Published
- May 20, 2025
- Last modified
- Nov 5, 2026
- NVD status
- Analyzed