44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From 890212d6800646153210ac264ce73035cc7dd5cc Mon Sep 17 00:00:00 2001
|
|
From: miaoguanqin <miaoguanqin@huawei.com>
|
|
Date: Tue, 4 Apr 2023 19:31:24 +0800
|
|
Subject: [PATCH 116/125] Fix null pointer for incremental in mdadm
|
|
|
|
when we excute mdadm --assemble, udev-md-raid-assembly.rules is triggered.
|
|
Then we stop array, we found an coredump for mdadm --incremental.func
|
|
stack are as follows:
|
|
|
|
#0 enough (level=10, raid_disks=4, layout=258, clean=1,
|
|
avail=avail@entry=0x0) at util.c:555
|
|
#1 0x0000562170c26965 in Incremental (devlist=<optimized out>,
|
|
c=<optimized out>, st=0x5621729b6dc0) at Incremental.c:514
|
|
#2 0x0000562170bfb6ff in main (argc=<optimized out>,
|
|
argv=<optimized out>) at mdadm.c:1762
|
|
|
|
func enough() use array avail,avail allocate space in func count_active,
|
|
it may not alloc space, causing a coredump.We fix this coredump.
|
|
|
|
Signed-off-by: Guanqin Miao <miaoguanqin@huawei.com>
|
|
Signed-off-by: lixiaokeng <lixiaokeng@huawei.com>
|
|
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
|
|
---
|
|
Incremental.c | 3 +++
|
|
1 file changed, 3 insertions(+)
|
|
|
|
diff --git a/Incremental.c b/Incremental.c
|
|
index 09b94b9f..49a71f72 100644
|
|
--- a/Incremental.c
|
|
+++ b/Incremental.c
|
|
@@ -507,6 +507,9 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
|
|
GET_OFFSET | GET_SIZE));
|
|
active_disks = count_active(st, sra, mdfd, &avail, &info);
|
|
|
|
+ if (!avail)
|
|
+ goto out_unlock;
|
|
+
|
|
journal_device_missing = (info.journal_device_required) && (info.journal_clean == 0);
|
|
|
|
if (info.consistency_policy == CONSISTENCY_POLICY_PPL)
|
|
--
|
|
2.38.1
|
|
|