svn commit: r348537 - vendor-sys/illumos/dist/uts/common/fs/zfs

[Alexander Motin]

Author: mav
Date: Mon Jun  3 15:25:12 2019
New Revision: 348537
URL: https://svnweb.freebsd.org/changeset/base/348537

Log:
  8601 memory leak in get_special_prop()
  
  illumos/illumos-gate at e19b450bec203d8be04447ea476d7a86b36d63a1
  
  Reviewed by: Serapheim Dimitropoulos <serapheim.dimitro at delphix.com>
  Reviewed by: Sara Hartse <sara.hartse at delphix.com>
  Reviewed by: Pavel Zakharov <pavel.zakharov at delphix.com>
  Reviewed by: Matt Ahrens <matt at delphix.com>
  Reviewed by: Robert Mustacchi <rm at joyent.com>
  Approved by: Dan McDonald <danmcd at joyent.com>
  Author:     John Gallagher <john.gallagher at delphix.com>

Modified:
  vendor-sys/illumos/dist/uts/common/fs/zfs/zcp_get.c

Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/zcp_get.c
==============================================================================
--- vendor-sys/illumos/dist/uts/common/fs/zfs/zcp_get.c	Mon Jun  3 15:23:37 2019	(r348536)
+++ vendor-sys/illumos/dist/uts/common/fs/zfs/zcp_get.c	Mon Jun  3 15:25:12 2019	(r348537)
@@ -14,7 +14,7 @@
  */
 
 /*
- * Copyright (c) 2016 by Delphix. All rights reserved.
+ * Copyright (c) 2016, 2017 by Delphix. All rights reserved.
  */
 
 #include "lua.h"
@@ -422,16 +422,21 @@ get_special_prop(lua_State *state, dsl_dataset_t *ds, 
 	case ZFS_PROP_INCONSISTENT:
 		numval = dsl_get_inconsistent(ds);
 		break;
-	case ZFS_PROP_RECEIVE_RESUME_TOKEN:
-		VERIFY3U(strlcpy(strval, get_receive_resume_stats_impl(ds),
-		    ZAP_MAXVALUELEN), <, ZAP_MAXVALUELEN);
+	case ZFS_PROP_RECEIVE_RESUME_TOKEN: {
+		char *token = get_receive_resume_stats_impl(ds);
+		VERIFY3U(strlcpy(strval, token, ZAP_MAXVALUELEN), <,
+		    ZAP_MAXVALUELEN);
+		strfree(token);
 		if (strcmp(strval, "") == 0) {
-			VERIFY3U(strlcpy(strval, get_child_receive_stats(ds),
-			    ZAP_MAXVALUELEN), <, ZAP_MAXVALUELEN);
+			token = get_child_receive_stats(ds);
+			VERIFY3U(strlcpy(strval, token, ZAP_MAXVALUELEN), <,
+			    ZAP_MAXVALUELEN);
+			strfree(token);
 			if (strcmp(strval, "") == 0)
 				error = ENOENT;
 		}
 		break;
+	}
 	case ZFS_PROP_VOLSIZE:
 		ASSERT(ds_type == ZFS_TYPE_VOLUME);
 		error = dmu_objset_from_ds(ds, &os);