mesh: Fix segfault on error path

When wpa_init() in __mesh_rsn_auth_init() failed, empty rsn->auth caused
segmentation fault due to NULL pointer dereference when wpa_deinit() was
called. Fix this by checking the pointer before executing deinit steps.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>

diff --git a/wpa_supplicant/mesh_rsn.c b/wpa_supplicant/mesh_rsn.c
index a140b97..9dce32f 100644 (file)
--- a/wpa_supplicant/mesh_rsn.c
+++ b/wpa_supplicant/mesh_rsn.c
@@ -190,7 +190,8 @@ static int __mesh_rsn_auth_init(struct mesh_rsn *rsn, const u8 *addr)
 static void mesh_rsn_deinit(struct mesh_rsn *rsn)
 {
        os_memset(rsn->mgtk, 0, sizeof(rsn->mgtk));
-       wpa_deinit(rsn->auth);
+       if (rsn->auth)
+               wpa_deinit(rsn->auth);
 }