diff options
| -rw-r--r-- | kernel/bpf/core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 76f68d0a7ae8..9cc91f0f3115 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -1434,6 +1434,16 @@ struct bpf_prog *bpf_jit_blind_constants(struct bpf_prog *prog) insn = clone->insnsi; for (i = 0; i < insn_cnt; i++, insn++) { + if (bpf_pseudo_func(insn)) { + /* ld_imm64 with an address of bpf subprog is not + * a user controlled constant. Don't randomize it, + * since it will conflict with jit_subprogs() logic. + */ + insn++; + i++; + continue; + } + /* We temporarily need to hold the original ld64 insn * so that we can still access the first part in the * second blinding run. |