On Fri, Jul 13, 2018 at 04:13:30PM +0100, Colin Ian King wrote: > On 13/07/18 16:11, Dan Carpenter wrote: > > I can't see that we check prog_cnt to ensure it doesn't go over > > MAX_PROGS. > > > > Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com> > > > > diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c > > index 89161c9ed466..904e775d1a44 100644 > > --- a/samples/bpf/bpf_load.c > > +++ b/samples/bpf/bpf_load.c > > @@ -107,6 +107,9 @@ static int load_and_attach(const char *event, struct > > bpf_insn *prog, int size) > > return -1; > > } > > > > + if (prog_cnt == MAX_PROGS) > > + return -1; > > + > > Should that be "if (prog_cnt >= MAX_PROGS)" ?
It's incremented one at a time so it can't go over. regards, dan carpenter
