X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=security%2Flsm_audit.c;h=8d8d97dbb389b1d305352cee29e4dbcc0191af64;hb=06272911485850b4a336122958c50af0f8ea7c13;hp=90c129b0102f5cbe43129695bde3c3b924b84987;hpb=1e20932a23578bb1ec59107843574e259b96193f;p=~andy%2Flinux

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: