diff options
| -rw-r--r-- | net/core/dev.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 0d548431f3fa..af53f6d838ce 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1119,7 +1119,9 @@ static int __dev_alloc_name(struct net *net, const char *name, char *res) if (i == max_netdevices) return -ENFILE; - snprintf(res, IFNAMSIZ, name, i); + /* 'res' and 'name' could overlap, use 'buf' as an intermediate buffer */ + strscpy(buf, name, IFNAMSIZ); + snprintf(res, IFNAMSIZ, buf, i); return i; } |