0c2f4fd8eb
patches number counts from 6000. We renumber patches from 0. Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
37 lines
972 B
Diff
37 lines
972 B
Diff
From 13150f803a18df9b2feddd424bf513b8806bc7e8 Mon Sep 17 00:00:00 2001
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From: root <root@localhost.localdomain>
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Date: Wed, 10 Apr 2019 21:33:29 +0800
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Subject: [PATCH 2/6] Assemble: set devices to NULL when load_devices can't
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load device
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Since load_devices frees "devices" when it can't find any
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device, we should set it to NULL to avoid double free issue
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which can be reproduced by below steps:
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mdadm -CR /dev/md/vol -l0 -e 1.2 -n2 /dev/sd[b-c] --assume-clean
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mdadm -Ss
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mdadm -A /dev/md127 /dev/sd[b-c] --update metadata
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---
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Assemble.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/Assemble.c b/Assemble.c
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index 0264190..a79466c 100644
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--- a/Assemble.c
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+++ b/Assemble.c
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@@ -1539,6 +1539,11 @@ try_again:
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&most_recent, &bestcnt, &best, inargv);
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if (devcnt < 0) {
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mdfd = -3;
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+ /*
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+ * devices is already freed in load_devices, so set devices
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+ * to NULL to avoid double free devices.
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+ */
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+ devices = NULL;
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goto out;
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}
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--
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2.19.1
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