Index: sysv_sem.c
===================================================================
RCS file: /cvs/src/sys/kern/sysv_sem.c,v
diff -u -p -r1.64 sysv_sem.c
--- sysv_sem.c	9 Jul 2024 04:42:48 -0000	1.64
+++ sysv_sem.c	23 Aug 2024 01:18:56 -0000
@@ -560,8 +560,12 @@ sys_semop(struct proc *p, void *v, regis
 
 	if (nsops <= NSOPS)
 		sops = sopbuf;
-	else
-		sops = mallocarray(nsops, sizeof(struct sembuf), M_SEM, M_WAITOK);
+	else {
+		sops = mallocarray(nsops, sizeof(struct sembuf), M_SEM,
+		    M_WAITOK | M_CANFAIL);
+		if (sops == NULL)
+			return (ENOMEM);
+	}
 	error = copyin(SCARG(uap, sops), sops, nsops * sizeof(struct sembuf));
 	if (error != 0) {
 		DPRINTF(("error = %d from copyin(%p, %p, %zu)\n", error,