Files
linux/kernel/bpf
Daniel Borkmann fe9a5ca7e3 bpf: Do not mark insn as seen under speculative path verification
... in such circumstances, we do not want to mark the instruction as seen given
the goal is still to jmp-1 rewrite/sanitize dead code, if it is not reachable
from the non-speculative path verification. We do however want to verify it for
safety regardless.

With the patch as-is all the insns that have been marked as seen before the
patch will also be marked as seen after the patch (just with a potentially
different non-zero count). An upcoming patch will also verify paths that are
unreachable in the non-speculative domain, hence this extension is needed.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Benedict Schlueter <benedict.schlueter@rub.de>
Reviewed-by: Piotr Krysiuk <piotras@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
2021-06-14 23:06:06 +02:00
..
2021-03-18 00:22:51 +01:00
2020-03-13 12:49:52 -07:00
2020-08-28 15:41:30 +02:00
2021-02-12 12:56:53 -08:00