linux-kernel - [PATCH] f2fs-tools: initialize allocated node area

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Date:   Fri, 13 Oct 2023 15:24:52 -0700
From:   Daeho Jeong <daeho43@...il.com>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc:     Daeho Jeong <daehojeong@...gle.com>
Subject: [PATCH] f2fs-tools: initialize allocated node area

From: Daeho Jeong <daehojeong@...gle.com>

Need to initialize allocated node areas after memory allocation.

Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
---
 fsck/node.c       | 1 +
 include/f2fs_fs.h | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/fsck/node.c b/fsck/node.c
index 3761470..6508340 100644
--- a/fsck/node.c
+++ b/fsck/node.c
@@ -127,6 +127,7 @@ block_t new_node_block(struct f2fs_sb_info *sbi,
 
 	node_blk = calloc(BLOCK_SZ, 1);
 	ASSERT(node_blk);
+	memset(node_blk, 0, BLOCK_SZ);
 
 	F2FS_NODE_FOOTER(node_blk)->nid = cpu_to_le32(dn->nid);
 	F2FS_NODE_FOOTER(node_blk)->ino = F2FS_NODE_FOOTER(f2fs_inode)->ino;
diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
index 3c7451c..7e22278 100644
--- a/include/f2fs_fs.h
+++ b/include/f2fs_fs.h
@@ -1826,6 +1826,8 @@ static inline void show_version(const char *prog)
 static inline void f2fs_init_inode(struct f2fs_super_block *sb,
 		struct f2fs_node *raw_node, nid_t ino, time_t mtime, mode_t mode)
 {
+	memset(raw_node, 0, F2FS_BLKSIZE);
+
 	F2FS_NODE_FOOTER(raw_node)->nid = cpu_to_le32(ino);
 	F2FS_NODE_FOOTER(raw_node)->ino = cpu_to_le32(ino);
 	F2FS_NODE_FOOTER(raw_node)->cp_ver = cpu_to_le64(1);
-- 
2.42.0.655.g421f12c284-goog