From: David Teigland <teigland@redhat.com>
Date: Tue, 3 Sep 2019 15:07:56 +0000 (-0500)
Subject: vgextend: check missing device during block size check
X-Git-Tag: v2_03_06~145
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=98d420200e16b450b6b7e33b83bdf36a59196d6d;p=lvm2.git

vgextend: check missing device during block size check

Checking the block size when a device is missing could
trigger a segfault.
---

diff --git a/lib/metadata/metadata.c b/lib/metadata/metadata.c
index 6d21ff99c..61906cc4b 100644
--- a/lib/metadata/metadata.c
+++ b/lib/metadata/metadata.c
@@ -769,6 +769,9 @@ int vg_extend_each_pv(struct volume_group *vg, struct pvcreate_params *pp)
 		logical_block_size = 0;
 		physical_block_size = 0;
 
+		if (!pvl->pv->dev)
+			continue;
+
 		if (!dev_get_direct_block_sizes(pvl->pv->dev, &physical_block_size, &logical_block_size))
 			continue;