Blob Blame History Raw
From af8a6eab2759aafeffc5ae47aed33492eb092b51 Mon Sep 17 00:00:00 2001
From: Cathy Avery <cavery@redhat.com>
Date: Tue, 19 Nov 2019 14:16:04 +0100
Subject: [PATCH 1/3] Fix memory leaks in 'vix' tools plugin.

RH-Author: Cathy Avery <cavery@redhat.com>
Message-id: <20191119141606.5322-2-cavery@redhat.com>
Patchwork-id: 92511
O-Subject: [RHEL8.1.z open-vm-tools PATCH 1/3] Fix memory leaks in 'vix' tools plugin.
Bugzilla: 1773903
RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>

commit 015db4c06a8be65eb96cf62421e8b5366993452f
Author: Oliver Kurth <okurth@vmware.com>
Date:   Wed Aug 29 13:29:45 2018 -0700

    Fix memory leaks in 'vix' tools plugin.

    * vix plugin retrieves the power script file paths from the
    config file but doesn't free them and this causes a memory leak.
    Fixed the code to free the filepaths.

    * In GuestAuthPasswordAuthenticateImpersonate function, the VGAuth
    handle is not freed when the impersonation fails. Fixed the
    code to call VGAuth_UserHandleFree in the error path.

    Note: I executed one guest operation with wrong credentials.
    Every failure leaks 75 bytes of memory. (in Centos 64-bit VM)

    * Fixed another minor issue in the code. At couple of places in
    the code, replaced 'err' with 'vgErr' for storing the return value
    of VGAuth_UserHandleAccessToken.

Signed-off-by: Cathy Avery <cavery@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 services/plugins/vix/vixTools.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/services/plugins/vix/vixTools.c b/services/plugins/vix/vixTools.c
index ef26742..2d60b86 100644
--- a/services/plugins/vix/vixTools.c
+++ b/services/plugins/vix/vixTools.c
@@ -2522,10 +2522,10 @@ VixTools_GetToolsPropertiesImpl(GKeyFile *confDictRef,            // IN
    char *guestName;
    int osFamily;
    char *packageList = NULL;
-   const char *powerOffScript = NULL;
-   const char *powerOnScript = NULL;
-   const char *resumeScript = NULL;
-   const char *suspendScript = NULL;
+   char *powerOffScript = NULL;
+   char *powerOnScript = NULL;
+   char *resumeScript = NULL;
+   char *suspendScript = NULL;
    char *osName = NULL;
    char *osNameFull = NULL;
    Bool foundHostName;
@@ -2726,6 +2726,10 @@ abort:
    free(tempDir);
    free(osName);
    free(osNameFull);
+   free(suspendScript);
+   free(resumeScript);
+   free(powerOnScript);
+   free(powerOffScript);
 #else
    /*
     * FreeBSD. We do not require all the properties above.
@@ -11585,7 +11589,7 @@ GuestAuthPasswordAuthenticateImpersonate(
 
 #ifdef _WIN32
    // this is making a copy of the token, be sure to close it
-   err = VGAuth_UserHandleAccessToken(ctx, newHandle, userToken);
+   vgErr = VGAuth_UserHandleAccessToken(ctx, newHandle, userToken);
    if (VGAUTH_FAILED(vgErr)) {
       err = VixToolsTranslateVGAuthError(vgErr);
       goto done;
@@ -11601,6 +11605,10 @@ done:
    free(username);
    Util_ZeroFreeString(password);
 
+   if (VIX_OK != err) {
+      VGAuth_UserHandleFree(newHandle);
+      newHandle = NULL;
+   }
    return err;
 #else
    return VIX_E_NOT_SUPPORTED;
@@ -11731,7 +11739,7 @@ impersonate:
 
 #ifdef _WIN32
    // this is making a copy of the token, be sure to close it
-   err = VGAuth_UserHandleAccessToken(ctx, newHandle, userToken);
+   vgErr = VGAuth_UserHandleAccessToken(ctx, newHandle, userToken);
    if (VGAUTH_FAILED(vgErr)) {
       err = VixToolsTranslateVGAuthError(vgErr);
       goto done;
-- 
1.8.3.1