bpf: adjust insn_aux_data when patching insns
authorAlexei Starovoitov <ast@fb.com>
Thu, 16 Mar 2017 01:26:41 +0000 (18:26 -0700)
committerBen Hutchings <ben@decadent.org.uk>
Sat, 23 Dec 2017 00:39:51 +0000 (00:39 +0000)
commit75a0736e681f570e4c6327393d1197c07a26cc65
treeb2b502a1d051e3e262206990b5e5bef7886aa42b
parenta3451f3f09e0cf435a6458adf8053d9986290646
bpf: adjust insn_aux_data when patching insns

convert_ctx_accesses() replaces single bpf instruction with a set of
instructions. Adjust corresponding insn_aux_data while patching.
It's needed to make sure subsequent 'for(all insn)' loops
have matching insn and insn_aux_data.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name bpf-adjust-insn_aux_data-when-patching-insns.patch
kernel/bpf/verifier.c