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| author | James Morse <james.morse@arm.com> | 2021-12-09 15:13:24 +0000 |
|---|---|---|
| committer | James Morse <james.morse@arm.com> | 2025-05-08 15:28:35 +0100 |
| commit | 0dfefc2ea2f29ced2416017d7e5b1253a54c2735 (patch) | |
| tree | 46fac081ffc5f13e4c0560e4f17a694296d420cf /lib/mpi/mpi-inline.c | |
| parent | a1152be30a043d2d4dcb1683415f328bf3c51978 (diff) | |
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.
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'lib/mpi/mpi-inline.c')
0 files changed, 0 insertions, 0 deletions