ba1cffe025
Commit be639ac6 ("NET: AX.25: Check ioctl arguments to avoid overflows
further down the road") rejects very large arguments, but doesn't
completely fix overflows on 64-bit systems. Consider the AX25_T2 case.
int opt;
...
if (opt < 1 || opt > ULONG_MAX / HZ) {
res = -EINVAL;
break;
}
ax25->t2 = opt * HZ;
The 32-bit multiplication opt * HZ would overflow before being assigned
to 64-bit ax25->t2. This patch changes "opt" to unsigned long.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|---|---|---|
| .. | ||
| af_ax25.c | ||
| ax25_addr.c | ||
| ax25_dev.c | ||
| ax25_ds_in.c | ||
| ax25_ds_subr.c | ||
| ax25_ds_timer.c | ||
| ax25_iface.c | ||
| ax25_in.c | ||
| ax25_ip.c | ||
| ax25_out.c | ||
| ax25_route.c | ||
| ax25_std_in.c | ||
| ax25_std_subr.c | ||
| ax25_std_timer.c | ||
| ax25_subr.c | ||
| ax25_timer.c | ||
| ax25_uid.c | ||
| Kconfig | ||
| Makefile | ||
| sysctl_net_ax25.c | ||
| TODO | ||