From: Chao Yu <chao@kernel.org>
Date: Wed, 3 Apr 2024 14:24:20 +0000 (+0800)
Subject: f2fs: fix to check pinfile flag in f2fs_move_file_range()
X-Git-Tag: v5.15.161~192
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=919f899a22075c9233157ccfcca1b5bbd9b02600;p=thirdparty%2Fkernel%2Fstable.git

f2fs: fix to check pinfile flag in f2fs_move_file_range()

[ Upstream commit e07230da0500e0919a765037c5e81583b519be2c ]

ioctl(F2FS_IOC_MOVE_RANGE) can truncate or punch hole on pinned file,
fix to disallow it.

Fixes: 5fed0be8583f ("f2fs: do not allow partial truncation on pinned file")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 39002f3c3f8a7..f10156aecf425 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2790,7 +2790,8 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 			goto out;
 	}
 
-	if (f2fs_compressed_file(src) || f2fs_compressed_file(dst)) {
+	if (f2fs_compressed_file(src) || f2fs_compressed_file(dst) ||
+		f2fs_is_pinned_file(src) || f2fs_is_pinned_file(dst)) {
 		ret = -EOPNOTSUPP;
 		goto out_unlock;
 	}