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authorGünther Noack <gnoack3000@gmail.com>2022-10-18 20:22:06 +0200
committerMickaël Salaün <mic@digikod.net>2022-10-19 09:01:40 +0200
commit3350607dc5637be2563f484dcfe2fed456f3d4ff (patch)
treefda8bd79084e26e2062fec46370c1a572b0d187f /fs/open.c
parent9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff)
security: Create file_truncate hook from path_truncate hook
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 <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: John Johansen <john.johansen@canonical.com> Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20221018182216.301684-2-gnoack3000@gmail.com Signed-off-by: Mickaël Salaün <mic@digikod.net>
Diffstat (limited to 'fs/open.c')
-rw-r--r--fs/open.c2
1 files changed, 1 insertions, 1 deletions
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);