[Qemu-devel] [PATCH v2] fsdev/virtfs-proxy-helper: Fix possible overflow

[Shannon Zhao]

It's detected by coverity. As max of sockaddr_un.sun_path is
sizeof(helper.sun_path), should check the length of source
and use strncpy instead of strcpy.

Signed-off-by: Shannon Zhao <address@hidden>
Signed-off-by: Shannon Zhao <address@hidden>
---
    v1->v2: Still use strcpy [Paolo]
---
 fsdev/virtfs-proxy-helper.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fsdev/virtfs-proxy-helper.c b/fsdev/virtfs-proxy-helper.c
index bf2e5f3..13fe032 100644
--- a/fsdev/virtfs-proxy-helper.c
+++ b/fsdev/virtfs-proxy-helper.c
@@ -738,6 +738,7 @@ static int proxy_socket(const char *path, uid_t uid, gid_t 
gid)
         return -1;
     }
 
+    g_assert(strlen(path) < sizeof(proxy.sun_path));
     sock = socket(AF_UNIX, SOCK_STREAM, 0);
     if (sock < 0) {
         do_perror("socket");
-- 
1.8.3.1