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-rw-r--r--net/ax25/af_ax25.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index f05306f168f..f1e998b2796 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -369,6 +369,9 @@ static int ax25_ctl_ioctl(const unsigned int cmd, void __user *arg)
if (ax25_ctl.digi_count > AX25_MAX_DIGIS)
return -EINVAL;
+ if (ax25_ctl.arg > ULONG_MAX / HZ && ax25_ctl.cmd != AX25_KILL)
+ return -EINVAL;
+
digi.ndigi = ax25_ctl.digi_count;
for (k = 0; k < digi.ndigi; k++)
digi.calls[k] = ax25_ctl.digi_addr[k];
@@ -418,14 +421,10 @@ static int ax25_ctl_ioctl(const unsigned int cmd, void __user *arg)
break;
case AX25_T3:
- if (ax25_ctl.arg < 0)
- goto einval_put;
ax25->t3 = ax25_ctl.arg * HZ;
break;
case AX25_IDLE:
- if (ax25_ctl.arg < 0)
- goto einval_put;
ax25->idle = ax25_ctl.arg * 60 * HZ;
break;