diff options
Diffstat (limited to 'net/core/pktgen.c')
| -rw-r--r-- | net/core/pktgen.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index b8ab5c829511..7e4ede34cc52 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -906,13 +906,14 @@ static ssize_t pktgen_if_write(struct file *file, i += len; if (debug) { - size_t copy = min_t(size_t, count, 1023); - char tb[copy + 1]; - if (copy_from_user(tb, user_buffer, copy)) - return -EFAULT; - tb[copy] = 0; - pr_debug("%s,%lu buffer -:%s:-\n", - name, (unsigned long)count, tb); + size_t copy = min_t(size_t, count + 1, 1024); + char *tp = strndup_user(user_buffer, copy); + + if (IS_ERR(tp)) + return PTR_ERR(tp); + + pr_debug("%s,%zu buffer -:%s:-\n", name, count, tp); + kfree(tp); } if (!strcmp(name, "min_pkt_size")) { |