[PATCH 4/5] virNetLibsshSessionAuthAddPasswordAuth: Don't access unlocked 'sess'

[Peter Krempa]

'sess->authPath' is modified before locking the 'sess' object.
Additionally on failure of 'virAuthGetConfigFilePathURI' 'sess' would be
unlocked even when it was not yet locked.

Fixes: 6917467c2b0e8f655999f3e568708c4651811689
Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/rpc/virnetlibsshsession.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/rpc/virnetlibsshsession.c b/src/rpc/virnetlibsshsession.c
index 8de7c86a41..d2e9e20ff2 100644
--- a/src/rpc/virnetlibsshsession.c
+++ b/src/rpc/virnetlibsshsession.c
@@ -846,16 +846,17 @@ virNetLibsshSessionAuthAddPasswordAuth(virNetLibsshSession *sess,
     int ret;
     virNetLibsshAuthMethod *auth;

+    virObjectLock(sess);
+
     if (uri) {
         VIR_FREE(sess->authPath);

         if (virAuthGetConfigFilePathURI(uri, &sess->authPath) < 0) {
-            ret = -1;
-            goto cleanup;
+            virObjectUnlock(sess);
+            return -1;
         }
     }

-    virObjectLock(sess);

     if (!(auth = virNetLibsshSessionAuthMethodNew(sess))) {
         ret = -1;
-- 
2.38.1