sys/kern/kern_exec.c

341 	struct ucred *newcred = NULL, *oldcred;
637 	oldcred = p->p_ucred;
683 	credential_changing |= (attr.va_mode & S_ISUID) && oldcred->cr_uid !=
685 	credential_changing |= (attr.va_mode & S_ISGID) && oldcred->cr_gid !=
688 	will_transition = mac_vnode_execve_will_transition(oldcred, imgp->vp,
695 	    ((oldcred->cr_flags & CRED_FLAG_CAPMODE) == 0) &&
726 		newcred = crdup(oldcred);
739 			mac_vnode_execve_transition(oldcred, newcred, imgp->vp,
754 		if (oldcred->cr_uid == oldcred->cr_ruid &&
755 		    oldcred->cr_gid == oldcred->cr_rgid)
769 		if (oldcred->cr_svuid != oldcred->cr_uid ||
770 		    oldcred->cr_svgid != oldcred->cr_gid) {
773 			newcred = crdup(oldcred);
859 		crfree(oldcred);