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From: lixiaokeng <lixiaokeng@huawei.com>
To: Christophe Varoqui <christophe.varoqui@opensvc.com>,
	Martin Wilck <mwilck@suse.com>,
	Benjamin Marzinski <bmarzins@redhat.com>,
	dm-devel mailing list <dm-devel@redhat.com>
Cc: linfeilong <linfeilong@huawei.com>,
	"liuzhiqiang (I)" <liuzhiqiang26@huawei.com>
Subject: [PATCH 0/6] libmultipath: check udev* func return value
Date: Tue, 15 Sep 2020 12:38:27 +0800	[thread overview]
Message-ID: <d89bc33d-8e5d-d194-3b26-83ff4d170c5c@huawei.com> (raw)

Hi,
  The udev* function may return NULL,and it will be
dereferenced in str* and sscanf func. For example,
there is a coredump caused in add func, which show in
be7a043(commit id) in upstream-queue. We check the
return value to avoid dereference NULL.

repo: openSUSE/multipath-tools
repo link: https://github.com/openSUSE/multipath-tools
branch: upstream-queue

lixiaokeng (6):
  libmultipath: check uedv* return value in sysfs_get_host_pci_name
  libmultipath: check udev* return value in ccw_sysfs_pathinfo
  libmultipath: check udev* return value in sysfs_get_tgt_nodename
  libmultipath: check udev* return value in
    trigger_partitions_udev_change
  libmultipath: check udev* renturn value in get_ctrl_blkdev
  libmultipath: check udev* return value in _find_path_by_syspath

 libmultipath/configure.c    |  4 +++-
 libmultipath/discovery.c    |  9 +++++++--
 libmultipath/foreign/nvme.c | 10 +++++++---
 3 files changed, 17 insertions(+), 6 deletions(-)

             reply	other threads:[~2020-09-15  4:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-15  4:38 lixiaokeng [this message]
2020-09-15  4:39 ` [PATCH 1/6] libmultipath: check uedv* return value in sysfs_get_host_pci_name lixiaokeng
2020-09-18  7:34   ` Martin Wilck
2020-09-15  4:39 ` [PATCH 2/6] libmultipath: check udev* return value in ccw_sysfs_pathinfo lixiaokeng
2020-09-18  7:01   ` Martin Wilck
2020-09-15  4:40 ` [PATCH 3/6] libmultipath: check udev* return value in sysfs_get_tgt_nodename lixiaokeng
2020-09-15  4:41 ` [PATCH 4/6] libmultipath: check udev* return value in trigger_partitions_udev_change lixiaokeng
2020-09-15  4:41 ` [PATCH 5/6] libmultipath: check udev* renturn value in get_ctrl_blkdev lixiaokeng
2020-09-18  6:59   ` Martin Wilck
2020-09-15  4:42 ` [PATCH 6/6] libmultipath: check udev* return value in _find_path_by_syspath lixiaokeng
2020-09-18  6:58   ` Martin Wilck
2020-09-18  2:26 ` [PATCH 0/6] libmultipath: check udev* func return value Benjamin Marzinski
2020-09-18  7:37   ` Martin Wilck
2020-09-18  8:39     ` lixiaokeng
2020-09-18 11:15       ` Martin Wilck

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