de5fe16817
The content of this branch was automatically imported from Fedora ELN with the following as its source: https://src.fedoraproject.org/rpms/device-mapper-multipath#2cf40b2f98808e3533e915c0a204b885d9da5e43
34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Mon, 13 Jul 2020 13:07:42 +0200
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Subject: [PATCH] libmultipath: warn about NULL value of mpp->hwe
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mpp->hwe is only accessed in propsel.c. It may become unset if
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all paths of the mpp have been deleted. Access to mpp->hwe in this
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case should be avoided.
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/propsel.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
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index d362beb4..68228272 100644
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--- a/libmultipath/propsel.c
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+++ b/libmultipath/propsel.c
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@@ -65,7 +65,9 @@ do { \
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__do_set_from_vec(struct hwentry, var, (src)->hwe, dest)
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#define do_set_from_hwe(var, src, dest, msg) \
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- if (__do_set_from_hwe(var, src, dest)) { \
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+ if (!src->hwe) { \
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+ condlog(0, "BUG: do_set_from_hwe called with hwe == NULL"); \
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+ } else if (__do_set_from_hwe(var, src, dest)) { \
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origin = msg; \
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goto out; \
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}
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--
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2.17.2
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