32 lines
989 B
Diff
32 lines
989 B
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: Tue, 2 Feb 2021 15:18:33 +0100
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Subject: [PATCH] libmultipath: check return value of udev_device_get_devnum()
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udev_device_get_devnum() may fail, in which case it returns
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makedev(0, 0).
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Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/discovery.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
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index 921025d4..15cf6413 100644
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--- a/libmultipath/discovery.c
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+++ b/libmultipath/discovery.c
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@@ -1659,6 +1659,9 @@ common_sysfs_pathinfo (struct path * pp)
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return PATHINFO_FAILED;
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}
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devt = udev_device_get_devnum(pp->udev);
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+ if (major(devt) == 0 && minor(devt) == 0)
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+ return PATHINFO_FAILED;
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+
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snprintf(pp->dev_t, BLK_DEV_SIZE, "%d:%d", major(devt), minor(devt));
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condlog(4, "%s: dev_t = %s", pp->dev, pp->dev_t);
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--
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2.17.2
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