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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 5 Jun 2018 15:31:55 -0500
Subject: [PATCH] multipath: don't check timestamps without a path
If a path was blacklisted, pathvec could exist but have no path in it.
print_cmd_valid wasn't checking this before calling
find_multipaths_check_timeout(). This was causing it to dereference a
NULL pointer in these cases.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/multipath/main.c b/multipath/main.c
index c69e996..3f0a6aa 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -482,10 +482,8 @@ static int print_cmd_valid(int k, const vector pathvec,
pp, pp->find_multipaths_timeout, &until);
if (wait != FIND_MULTIPATHS_WAITING)
k = 1;
- } else if (pathvec != NULL) {
- pp = VECTOR_SLOT(pathvec, 0);
+ } else if (pathvec != NULL && (pp = VECTOR_SLOT(pathvec, 0)))
wait = find_multipaths_check_timeout(pp, 0, &until);
- }
if (wait == FIND_MULTIPATHS_WAITING)
printf("FIND_MULTIPATHS_WAIT_UNTIL=\"%ld.%06ld\"\n",
until.tv_sec, until.tv_nsec/1000);
--
2.7.4
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