Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 07f62eb6 authored by Eric Paris's avatar Eric Paris
Browse files

LSM: BUILD_BUG_ON if the common_audit_data union ever grows 



We did a lot of work to shrink the common_audit_data.  Add a BUILD_BUG_ON
so future programers (let's be honest, probably me) won't do something
foolish like make it large again!

Signed-off-by: default avatarEric Paris <eparis@redhat.com>
parent b466066f

security/lsm_audit.c

+7 −0
Original line number Diff line number Diff line
@@ -213,6 +213,13 @@ static void dump_common_audit_data(struct audit_buffer *ab, 
{

	struct task_struct *tsk = current;



	/*

	 * 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);