1 diff a/src/rrd_create.c b/src/rrd_create.c
2 --- a/src/rrd_create.c
3 +++ b/src/rrd_create.c
4 @@ -771,6 +771,15 @@ int rrd_create_fn(
5 default:
6 /* can not be zero because we don't know anything ... */
7 rrd->cdp_prep->scratch[CDP_val].u_val = DNAN;
8 + /* If the step is 0, we're going to have a BIG Floating Point Exception (i.e. SIGFPE). */
9 + /* Example: (( 1202705167 - 67 ) % ( 300 * 0 )) / 300 */
10 + if (rrd->rra_def[i].pdp_cnt == 0)
11 + {
12 + rrd_set_error("Invalid step: must be greater than 0.");
13 + rrd_free2(rrd);
14 + rrd_close(rrd_file_dn);
15 + return(-1);
16 + }
17 /* startup missing pdp count */
18 rrd->cdp_prep->scratch[CDP_unkn_pdp_cnt].u_cnt =
19 ((rrd->live_head->last_up -