Re: [PATCH] sanlock: avoid leak in acquire()

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On Tue, May 13, 2014 at 01:47:37PM +0200, Peter Krempa wrote:
On 05/13/14 13:40, Martin Kletzander wrote:
Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
---
 src/locking/lock_driver_sanlock.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/locking/lock_driver_sanlock.c b/src/locking/lock_driver_sanlock.c
index b3d31bf..e4b4e8e 100644
--- a/src/locking/lock_driver_sanlock.c
+++ b/src/locking/lock_driver_sanlock.c
@@ -907,9 +907,6 @@ static int virLockManagerSanlockAcquire(virLockManagerPtr lock,
         return -1;
     }

-    if (VIR_ALLOC(opt) < 0)
-        return -1;
-
     /* We only initialize 'sock' if we are in the real
      * child process and we need it to be inherited
      *
@@ -944,6 +941,9 @@ static int virLockManagerSanlockAcquire(virLockManagerPtr lock,
         return 0;
     }

+    if (VIR_ALLOC(opt) < 0)
+        return -1;

you need to goto error here. The code you are moving around is opening a
socket to sanlock which would be left open if this alloc would fail.


What a world, rushing gets you nowhere nowadays :-/  I noticed that
immediately after sending.

+
     /* sanlock doesn't use owner_name for anything, so it's safe to take just
      * the first SANLK_NAME_LEN - 1 characters from vm_name */
     ignore_value(virStrncpy(opt->owner_name, priv->vm_name,


ACK with that change.

Peter


Fixed && pushed && thanks.

Martin

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