diff options
| author | Günther Noack <gnoack3000@gmail.com> | 2022-10-18 20:22:06 +0200 |
|---|---|---|
| committer | Mickaël Salaün <mic@digikod.net> | 2022-10-19 09:01:40 +0200 |
| commit | 3350607dc5637be2563f484dcfe2fed456f3d4ff (patch) | |
| tree | fda8bd79084e26e2062fec46370c1a572b0d187f /security/security.c | |
| parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
| download | linux-3350607dc5637be2563f484dcfe2fed456f3d4ff.tar.bz2 | |
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 'security/security.c')
| -rw-r--r-- | security/security.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/security/security.c b/security/security.c index 79d82cb6e469..b55596958d0c 100644 --- a/security/security.c +++ b/security/security.c @@ -1652,6 +1652,11 @@ int security_file_open(struct file *file) return fsnotify_perm(file, MAY_OPEN); } +int security_file_truncate(struct file *file) +{ + return call_int_hook(file_truncate, 0, file); +} + int security_task_alloc(struct task_struct *task, unsigned long clone_flags) { int rc = lsm_task_alloc(task); |