diff options
Diffstat (limited to 'drivers/net/tap.c')
| -rw-r--r-- | drivers/net/tap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/tap.c b/drivers/net/tap.c index 1b10fcc6a58d..6c0c84c33e1f 100644 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@ -1032,6 +1032,8 @@ static long tap_ioctl(struct file *file, unsigned int cmd, case TUNSETSNDBUF: if (get_user(s, sp)) return -EFAULT; + if (s <= 0) + return -EINVAL; q->sk.sk_sndbuf = s; return 0; |