diff options
Diffstat (limited to 'kernel/cred.c')
| -rw-r--r-- | kernel/cred.c | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/kernel/cred.c b/kernel/cred.c index 7a0d80669886..eddc5e2e9587 100644 --- a/kernel/cred.c +++ b/kernel/cred.c @@ -49,6 +49,14 @@ struct cred init_cred = { .subscribers = ATOMIC_INIT(2), .magic = CRED_MAGIC, #endif + .uid = GLOBAL_ROOT_UID, + .gid = GLOBAL_ROOT_GID, + .suid = GLOBAL_ROOT_UID, + .sgid = GLOBAL_ROOT_GID, + .euid = GLOBAL_ROOT_UID, + .egid = GLOBAL_ROOT_GID, + .fsuid = GLOBAL_ROOT_UID, + .fsgid = GLOBAL_ROOT_GID, .securebits = SECUREBITS_DEFAULT, .cap_inheritable = CAP_EMPTY_SET, .cap_permitted = CAP_FULL_SET, @@ -488,10 +496,10 @@ int commit_creds(struct cred *new) get_cred(new); /* we will require a ref for the subj creds too */ /* dumpability changes */ - if (old->euid != new->euid || - old->egid != new->egid || - old->fsuid != new->fsuid || - old->fsgid != new->fsgid || + if (!uid_eq(old->euid, new->euid) || + !gid_eq(old->egid, new->egid) || + !uid_eq(old->fsuid, new->fsuid) || + !gid_eq(old->fsgid, new->fsgid) || !cap_issubset(new->cap_permitted, old->cap_permitted)) { if (task->mm) set_dumpable(task->mm, suid_dumpable); @@ -500,9 +508,9 @@ int commit_creds(struct cred *new) } /* alter the thread keyring */ - if (new->fsuid != old->fsuid) + if (!uid_eq(new->fsuid, old->fsuid)) key_fsuid_changed(task); - if (new->fsgid != old->fsgid) + if (!gid_eq(new->fsgid, old->fsgid)) key_fsgid_changed(task); /* do it @@ -519,16 +527,16 @@ int commit_creds(struct cred *new) alter_cred_subscribers(old, -2); /* send notifications */ - if (new->uid != old->uid || - new->euid != old->euid || - new->suid != old->suid || - new->fsuid != old->fsuid) + if (!uid_eq(new->uid, old->uid) || + !uid_eq(new->euid, old->euid) || + !uid_eq(new->suid, old->suid) || + !uid_eq(new->fsuid, old->fsuid)) proc_id_connector(task, PROC_EVENT_UID); - if (new->gid != old->gid || - new->egid != old->egid || - new->sgid != old->sgid || - new->fsgid != old->fsgid) + if (!gid_eq(new->gid, old->gid) || + !gid_eq(new->egid, old->egid) || + !gid_eq(new->sgid, old->sgid) || + !gid_eq(new->fsgid, old->fsgid)) proc_id_connector(task, PROC_EVENT_GID); /* release the old obj and subj refs both */ |