D25600.id74236.diff
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	Index: lib/libc/sys/msgctl.2
	===================================================================
	--- lib/libc/sys/msgctl.2
	+++ lib/libc/sys/msgctl.2
	@@ -31,7 +31,7 @@
	.\"
	.\" $FreeBSD$
	.\"/
	-.Dd July 9, 2009
	+.Dd July 9, 2020
	.Dt MSGCTL 2
	.Os
	.Sh NAME
	@@ -63,8 +63,6 @@
	.Bd -literal
	struct msqid_ds {
	struct ipc_perm msg_perm; /* msg queue permission bits */
	- struct msg __msg_first; / kernel data, don't use */
	- struct msg __msg_last; / kernel data, don't use */
	msglen_t msg_cbytes; /* number of bytes in use on the queue */
	msgqnum_t msg_qnum; /* number of msgs in the queue */
	msglen_t msg_qbytes; /* max # of bytes on the queue */
	Index: sys/kern/sysv_msg.c
	===================================================================
	--- sys/kern/sysv_msg.c
	+++ sys/kern/sysv_msg.c
	@@ -611,6 +611,7 @@
	goto done2;
	}
	*msqbuf = msqkptr->u;
	+ msqbuf->__msg_first = msqbuf->__msg_last = NULL;
	if (td->td_ucred->cr_prison != msqkptr->cred->cr_prison)
	msqbuf->msg_perm.key = IPC_PRIVATE;
	break;