From: Lidong Zhong <lidong.zhong@suse.com>
Date: Sun, 22 Nov 2020 15:12:29 +0000 (+0800)
Subject: Detail: fix segfault during IMSM raid creation
X-Git-Tag: mdadm-4.2-rc1~36
X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=commitdiff_plain;h=c3129b39a7d467eec063681529f46f84a2a85308

Detail: fix segfault during IMSM raid creation

It can be reproduced with non IMSM hardware and IMSM_NO_PLATFORM
environmental variable set. The array state is inactive when creating
an IMSM container. And the structure info is NULL because load_super()
always fails since no intel HBA information could be obtained.

Signed-off-by: Lidong Zhong <lidong.zhong@suse.com>
Reported-by: Tkaczyk Mariusz <mariusz.tkaczyk@intel.com>
Fixes: 64bf4dff3430 (Detail: show correct raid level when the array is inactive)
---

diff --git a/Detail.c b/Detail.c
index b6587c8c..ea868847 100644
--- a/Detail.c
+++ b/Detail.c
@@ -224,7 +224,7 @@ int Detail(char *dev, struct context *c)
 	}
 
 	/* Ok, we have some info to print... */
-	if (inactive)
+	if (inactive && info)
 		str = map_num(pers, info->array.level);
 	else
 		str = map_num(pers, array.level);