6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chao Yu chao@kernel.org
[ 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 --- 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; }