diff options
Diffstat (limited to 'security/lsm_audit.c')
| -rw-r--r-- | security/lsm_audit.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/security/lsm_audit.c b/security/lsm_audit.c index 90c129b0102..8d8d97dbb38 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -213,12 +213,15 @@ static void dump_common_audit_data(struct audit_buffer *ab, { struct task_struct *tsk = current; - if (a->tsk) - tsk = a->tsk; - if (tsk && tsk->pid) { - audit_log_format(ab, " pid=%d comm=", tsk->pid); - audit_log_untrustedstring(ab, tsk->comm); - } + /* + * To keep stack sizes in check force programers to notice if they + * start making this union too large! See struct lsm_network_audit + * as an example of how to deal with large data. + */ + BUILD_BUG_ON(sizeof(a->u) > sizeof(void *)*2); + + audit_log_format(ab, " pid=%d comm=", tsk->pid); + audit_log_untrustedstring(ab, tsk->comm); switch (a->type) { case LSM_AUDIT_DATA_NONE: |