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From: Benjamin Marzinski <bmarzins@redhat.com>
To: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: device-mapper development <dm-devel@redhat.com>,
	Martin Wilck <Martin.Wilck@suse.com>
Subject: [dm-devel] [PATCH 1/4] libmultipath: avoid infinite loop with bad vpd page 83 identifier
Date: Thu, 25 Mar 2021 19:52:43 -0500	[thread overview]
Message-ID: <1616719966-10221-2-git-send-email-bmarzins@redhat.com> (raw)
In-Reply-To: <1616719966-10221-1-git-send-email-bmarzins@redhat.com>

If a device with a scsi name identifier has an unknown prefix,
parse_vpd_pg83() needs to advance to the next identifier, instead of
simply trying the same one again in an infinite loop.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
 libmultipath/discovery.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index f216a724..5727f7a6 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -1157,7 +1157,7 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
 			if (memcmp(d + 4, "eui.", 4) &&
 			    memcmp(d + 4, "naa.", 4) &&
 			    memcmp(d + 4, "iqn.", 4))
-				continue;
+				break;
 			if (prio < 4) {
 				prio = 4;
 				vpd = d;
-- 
2.17.2

--
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  reply	other threads:[~2021-03-26  0:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-26  0:52 [dm-devel] [PATCH 0/4] Fixups to my wwid recheck patch Benjamin Marzinski
2021-03-26  0:52 ` Benjamin Marzinski [this message]
2021-03-26 16:49   ` [dm-devel] [PATCH 1/4] libmultipath: avoid infinite loop with bad vpd page 83 identifier Martin Wilck
2021-03-26  0:52 ` [dm-devel] [PATCH 2/4] libmultipath: fix priorities in parse_vpd_pg83 Benjamin Marzinski
2021-03-26 17:12   ` Martin Wilck
2021-03-27  2:18     ` Benjamin Marzinski
2021-03-29  8:44       ` Martin Wilck
2021-03-29 18:20         ` Benjamin Marzinski
2021-03-29 19:08           ` Martin Wilck
2021-03-29 20:09             ` Benjamin Marzinski
2021-03-29  8:47   ` Martin Wilck
2021-03-26  0:52 ` [dm-devel] [PATCH 3/4] multipathd: improve getting parent udevice in rescan_path Benjamin Marzinski
2021-03-26 17:15   ` Martin Wilck
2021-03-26  0:52 ` [dm-devel] [PATCH 4/4] multipathd: don't trigger uevent for partitions on wwid change Benjamin Marzinski
2021-03-26 17:16   ` Martin Wilck

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