From: Yunlong Song <yunlong.song@huawei.com>
To: <jaegeuk@kernel.org>, <chao@kernel.org>, <yuchao0@huawei.com>,
<yunlong.song@icloud.com>, <yunlong.song@huawei.com>
Cc: <miaoxie@huawei.com>, <bintian.wang@huawei.com>,
<shengyong1@huawei.com>, <heyunlei@huawei.com>,
<linux-fsdevel@vger.kernel.org>,
<linux-f2fs-devel@lists.sourceforge.net>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v2] fsck.f2fs: check nid range before use to avoid segmentation fault
Date: Mon, 18 Dec 2017 19:53:45 +0800 [thread overview]
Message-ID: <1513598025-160615-1-git-send-email-yunlong.song@huawei.com> (raw)
In-Reply-To: <1513319174-114303-1-git-send-email-yunlong.song@huawei.com>
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
---
fsck/fsck.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fsck/fsck.c b/fsck/fsck.c
index 11b8b0b..faf0663 100644
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -740,7 +740,7 @@ void fsck_chk_inode_blk(struct f2fs_sb_info *sbi, u32 nid,
for (idx = 0; idx < 5; idx++) {
u32 nid = le32_to_cpu(node_blk->i.i_nid[idx]);
- if (nid != 0) {
+ if (nid != 0 && IS_VALID_NID(sbi, nid)) {
struct node_info ni;
get_node_info(sbi, nid, &ni);
--
1.8.5.2
next prev parent reply other threads:[~2017-12-18 11:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-15 6:26 [PATCH] fsck.f2fs: check nid range before use to avoid segmentation fault Yunlong Song
2017-12-15 10:06 ` Sheng Yong
2017-12-18 11:53 ` Yunlong Song [this message]
2017-12-23 3:14 ` [PATCH v2] " Chao Yu
2017-12-23 3:35 ` Yunlong Song
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