mdadm/0116-Fix-null-pointer-for-incremental-in-mdadm.patch
Xiao Ni adfbb8ebd5 Update to latest upstream and fix mdcheck service bug
If mdcheck_start service can finish check action, it doesn't need to start mdcheck_continue
service. So in rhel only patch mdcheck.patch, we stop mdcheck_continue timer.

And there is a history problem. It needed KillMode=none before, so it removed
the upstream patch 52c67fcdd. Now this problem has been fixed, so we can do the
backport more easilly now. We don't need to remove the upstream patch here again.

Resolves: rhbz#2116418, rhbz#2150862, rhbz#2159584

Signed-off-by: Xiao Ni <xni@redhat.com>
2023-05-16 16:08:25 +08:00

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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