6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chao Yu <chao@xxxxxxxxxx>
[ 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@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/f2fs/file.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1a7ee769f9389..1c47c7cbcd6cd 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2816,7 +2816,8 @@ 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;
}
--
2.43.0
