CVE-2025-37948
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.
No affected software listed.
- https://git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735
- https://git.kernel.org/stable/c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78
- https://git.kernel.org/stable/c/42a20cf51011788f04cf2adbcd7681f02bdb6c27
- https://git.kernel.org/stable/c/852b8ae934b5cbdc62496fa56ce9969aa2edda7f
- https://git.kernel.org/stable/c/8fe5c37b0e08a97cf0210bb75970e945aaaeebab
- https://git.kernel.org/stable/c/993f63239c219696aef8887a4e7d3a16bf5a8ece
- https://git.kernel.org/stable/c/c6a8735d841bcb7649734bb3a787bb174c67c0d8
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
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