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Message-ID: <tencent_897491761D662E3D7336B297BA37064A7C09@qq.com>
From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+6450929faa7a97cd42d1@syzkaller.appspotmail.com
Cc: brauner@kernel.org,
	damien.lemoal@opensource.wdc.com,
	edward.shishkin@gmail.com,
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	jlayton@kernel.org,
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	linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org,
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	willy@infradead.org
Subject: [PATCH] reiserfs: fix uninit-value in reiserfs_new_inode
Date: Sun, 31 Dec 2023 09:04:04 +0800
In-Reply-To: <000000000000da757a060d58ebbe@google.com>
References: <000000000000da757a060d58ebbe@google.com>
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Before creating a new inode, it is necessary to initialize the "new packing
locality" tag of the dir.

Signed-off-by: Edward Adam Davis <eadavis@qq.com>
---
 fs/reiserfs/namei.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 994d6e6995ab..3a824fb170d5 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -638,6 +638,10 @@ static int reiserfs_create(struct mnt_idmap *idmap, struct inode *dir,
 	if (retval)
 		return retval;
 
+#ifdef DISPLACE_NEW_PACKING_LOCALITIES
+	REISERFS_I(dir)->new_packing_locality = 0;
+#endif
+
 	if (!(inode = new_inode(dir->i_sb))) {
 		return -ENOMEM;
 	}
-- 
2.43.0