From: Alexei Starovoitov
Date: Wed, 15 Apr 2015 16:19:33 -0700
> 1.
> first bug is a silly mistake. It broke tracing examples and prevented
> simple bpf programs from loading.
...
> 2.
> second bug is more subtle.
> If malicious code is using the same dest register as source register,
> the chec
1.
first bug is a silly mistake. It broke tracing examples and prevented
simple bpf programs from loading.
In the following code:
if (insn->imm == 0 && BPF_SIZE(insn->code) == BPF_W) {
} else if (...) {
// this part should have been executed when
// insn->code == BPF_W and insn->imm != 0
}
Ob
