diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-11-03 00:12:41 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-11-04 12:35:52 +0100 |
| commit | 4c7ceeb62d3330b6fb2b549ae833a92c0f481f3e (patch) | |
| tree | 47c9e970f7baabd753d810717d6348f2f98666f0 | |
| parent | 4e97bae1b412cd6ed8053b3d8a242122952985cc (diff) | |
cred: add kernel_cred() helper
Access kernel creds based off of init_task. This will let us avoid any
direct access to init_cred.
Link: https://patch.msgid.link/20251103-work-creds-init_cred-v1-2-cb3ec8711a6a@kernel.org
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | include/linux/cred.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h index 89ae50ad2ace..8ab3718184ad 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -20,6 +20,8 @@ struct cred; struct inode; +extern struct task_struct init_task; + /* * COW Supplementary groups list */ @@ -156,6 +158,11 @@ extern struct cred *prepare_exec_creds(void); extern int commit_creds(struct cred *); extern void abort_creds(struct cred *); extern struct cred *prepare_kernel_cred(struct task_struct *); +static inline const struct cred *kernel_cred(void) +{ + /* shut up sparse */ + return rcu_dereference_raw(init_task.cred); +} extern int set_security_override(struct cred *, u32); extern int set_security_override_from_ctx(struct cred *, const char *); extern int set_create_files_as(struct cred *, struct inode *); |