From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Wed, 9 Mar 2016 19:11:02 +0000 (-0500)
Subject: super_intel: imsm_manage_reshape(): Fix potential NULL pointer dereference
X-Git-Tag: mdadm-4.0~106
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79a16a9b359afbd5687456c4c43c13ac1946826b;p=thirdparty%2Fmdadm.git

super_intel: imsm_manage_reshape(): Fix potential NULL pointer dereference

If sra == NULL we cannot goto abort, as it would result in calls to
sysfs_set_num() which would dereference sra.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
---

diff --git a/super-intel.c b/super-intel.c
index 26b7fe75..f04ac2f6 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -10521,7 +10521,10 @@ static int imsm_manage_reshape(
 	int degraded = 0;
 	int source_layout = 0;
 
-	if (!fds || !offsets || !sra)
+	if (!sra)
+		return ret_val;
+
+	if (!fds || !offsets)
 		goto abort;
 
 	/* Find volume during the reshape */