From: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Date: Fri, 7 Dec 2018 11:04:44 +0000 (+0100)
Subject: policy.c: prevent NULL pointer referencing
X-Git-Tag: mdadm-4.2-rc1~123
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=467e6a1b4ece8e552ee638dab7f44a4d235ece1a;p=thirdparty%2Fmdadm.git

policy.c: prevent NULL pointer referencing

paths could be NULL and paths[0] should be followed by NULL pointer
checking.

Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
---

diff --git a/policy.c b/policy.c
index fa67d559..e3a0671f 100644
--- a/policy.c
+++ b/policy.c
@@ -383,7 +383,7 @@ struct dev_policy *path_policy(char **paths, char *type)
 	/* Now add any metadata-specific internal knowledge
 	 * about this path
 	 */
-	for (i=0; paths[0] && superlist[i]; i++)
+	for (i=0; paths && paths[0] && superlist[i]; i++)
 		if (superlist[i]->get_disk_controller_domain) {
 			const char *d =
 				superlist[i]->get_disk_controller_domain(