device-mapper-multipath/0089-libmultipath-ignore-multipaths-sections-without-wwid.patch
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Source: https://src.fedoraproject.org/rpms/device-mapper-multipath.git#26a2cd7a3e189bf91263d17bc8a8c449cc043fb0
2021-01-21 16:56:27 +00:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 18 Dec 2020 17:06:40 -0600
Subject: [PATCH] libmultipath: ignore multipaths sections without wwid option
"multipathd show config local" was crashing in find_mp_by_wwid() if
the multipath configuration included a multipaths section that did
not set a wwid option. There is no reason to keep a mpentry that
didn't set its wwid. Remove it in merge_mptable().
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
libmultipath/config.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index 9f3cb38d..a643703e 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -509,6 +509,13 @@ void merge_mptable(vector mptable)
int i, j;
vector_foreach_slot(mptable, mp1, i) {
+ /* drop invalid multipath configs */
+ if (!mp1->wwid) {
+ condlog(0, "multipaths config section missing wwid");
+ vector_del_slot(mptable, i--);
+ free_mpe(mp1);
+ continue;
+ }
j = i + 1;
vector_foreach_slot_after(mptable, mp2, j) {
if (strcmp(mp1->wwid, mp2->wwid))
--
2.17.2