From 3350607dc5637be2563f484dcfe2fed456f3d4ff Mon Sep 17 00:00:00 2001 From: Günther Noack Date: Tue, 18 Oct 2022 20:22:06 +0200 Subject: security: Create file_truncate hook from path_truncate hook MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Like path_truncate, the file_truncate hook also restricts file truncation, but is called in the cases where truncation is attempted on an already-opened file. This is required in a subsequent commit to handle ftruncate() operations differently to truncate() operations. Acked-by: Tetsuo Handa Acked-by: John Johansen Acked-by: Paul Moore Signed-off-by: Günther Noack Link: https://lore.kernel.org/r/20221018182216.301684-2-gnoack3000@gmail.com Signed-off-by: Mickaël Salaün --- fs/open.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/open.c') diff --git a/fs/open.c b/fs/open.c index a81319b6177f..c92f76ab341a 100644 --- a/fs/open.c +++ b/fs/open.c @@ -188,7 +188,7 @@ long do_sys_ftruncate(unsigned int fd, loff_t length, int small) if (IS_APPEND(file_inode(f.file))) goto out_putf; sb_start_write(inode->i_sb); - error = security_path_truncate(&f.file->f_path); + error = security_file_truncate(f.file); if (!error) error = do_truncate(file_mnt_user_ns(f.file), dentry, length, ATTR_MTIME | ATTR_CTIME, f.file); -- cgit v1.2.3-70-g09d2