diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/pktgen.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index f4f9c9d83694..c604a68f2840 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -913,8 +913,13 @@ static ssize_t get_labels(const char __user *buffer, max = min(8, maxlen - i); len = hex32_arg(&buffer[i], max, &tmp); - if (len <= 0) + if (len < 0) return len; + + /* return empty list in case of invalid input or zero value */ + if (len == 0 || tmp == 0) + return maxlen; + pkt_dev->labels[n] = htonl(tmp); if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) pkt_dev->flags |= F_MPLS_RND; |