Replace this with patch-copy_from_user-warning-v2.patch .

diff -up ./drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c.cfu ./drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
--- ./drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c.cfu	2018-10-30 20:06:59.000000000 +0900
+++ ./drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c	2018-10-30 20:17:55.000000000 +0900
@@ -4494,12 +4494,16 @@ int vmw_execbuf_ioctl(struct drm_device
 		return -EINVAL;
 	}
 
-	if (arg.version > 1 &&
-	    copy_from_user(&arg.context_handle,
-			   (void __user *) (data + copy_offset[0]),
-			   copy_offset[arg.version - 1] -
-			   copy_offset[0]) != 0)
-		return -EFAULT;
+	if (arg.version > 1) {
+		/* to make copy_from_user() happy, check bounds beforehand */
+		size_t copysize = copy_offset[arg.version - 1] - copy_offset[0];
+		if (copysize > sizeof(arg.context_handle))
+			return -EFAULT;
+		if (copy_from_user(&arg.context_handle,
+				   (void __user *) (data + copy_offset[0]),
+				   copysize) != 0)
+			return -EFAULT;
+	}
 
 	switch (arg.version) {
 	case 1:
diff -up ./drivers/isdn/hardware/avm/b1.c.cfu ./drivers/isdn/hardware/avm/b1.c
--- ./drivers/isdn/hardware/avm/b1.c.cfu	2018-10-05 05:18:19.000000000 +0900
+++ ./drivers/isdn/hardware/avm/b1.c	2018-10-30 20:06:59.000000000 +0900
@@ -176,6 +176,8 @@ int b1_load_t4file(avmcard *card, capilo
 	}
 	if (left) {
 		if (t4file->user) {
+			if (left > sizeof(buf)) /* make copy_from_user happy */
+				return -EFAULT;
 			if (copy_from_user(buf, dp, left))
 				return -EFAULT;
 		} else {
@@ -224,6 +226,8 @@ int b1_load_config(avmcard *card, capilo
 	}
 	if (left) {
 		if (config->user) {
+			if (left > sizeof(buf)) /* make copy_from_user happy */
+				return -EFAULT;
 			if (copy_from_user(buf, dp, left))
 				return -EFAULT;
 		} else {
diff -up ./fs/binfmt_misc.c.cfu ./fs/binfmt_misc.c
--- ./fs/binfmt_misc.c.cfu	2018-10-05 05:18:19.000000000 +0900
+++ ./fs/binfmt_misc.c	2018-10-30 20:06:59.000000000 +0900
@@ -396,12 +396,12 @@ static int parse_command(const char __us
 {
 	char s[4];
 
-	if (!count)
-		return 0;
 	if (count > 3)
 		return -EINVAL;
 	if (copy_from_user(s, buffer, count))
 		return -EFAULT;
+	if (!count)
+		return 0;
 	if (s[count-1] == '\n')
 		count--;
 	if (count == 1 && s[0] == '0')
diff -up ./kernel/sys.c.cfu ./kernel/sys.c
--- ./kernel/sys.c.cfu	2018-10-05 05:18:19.000000000 +0900
+++ ./kernel/sys.c	2018-10-30 20:06:59.000000000 +0900
@@ -2097,7 +2097,10 @@ static int prctl_set_mm_map(int opt, con
 		return error;
 
 	if (prctl_map.auxv_size) {
+		unsigned long arg4 = prctl_map.auxv_size;
 		memset(user_auxv, 0, sizeof(user_auxv));
+		if (arg4 > sizeof(user_auxv)) /* to make copy_from_user happy */
+			return -EFAULT;
 		if (copy_from_user(user_auxv,
 				   (const void __user *)prctl_map.auxv,
 				   prctl_map.auxv_size))
diff -up ./net/core/pktgen.c.cfu ./net/core/pktgen.c
--- ./net/core/pktgen.c.cfu	2018-10-05 05:18:19.000000000 +0900
+++ ./net/core/pktgen.c	2018-10-30 20:06:59.000000000 +0900
@@ -881,6 +881,8 @@ static ssize_t pktgen_if_write(struct fi
 		return len;
 
 	memset(name, 0, sizeof(name));
+	if (len > sizeof(name))
+		return -EFAULT;
 	if (copy_from_user(name, &user_buffer[i], len))
 		return -EFAULT;
 	i += len;
@@ -1798,6 +1800,8 @@ static ssize_t pktgen_thread_write(struc
 		return len;
 
 	memset(name, 0, sizeof(name));
+	if (len > sizeof(name))
+		return -EFAULT;
 	if (copy_from_user(name, &user_buffer[i], len))
 		return -EFAULT;
 	i += len;
@@ -1828,6 +1832,8 @@ static ssize_t pktgen_thread_write(struc
 			ret = len;
 			goto out;
 		}
+		if (len > sizeof(f))
+			return -EFAULT;
 		if (copy_from_user(f, &user_buffer[i], len))
 			return -EFAULT;
 		i += len;
diff -up ./sound/core/seq/seq_clientmgr.c.cfu ./sound/core/seq/seq_clientmgr.c
--- ./sound/core/seq/seq_clientmgr.c.cfu	2018-10-05 05:18:19.000000000 +0900
+++ ./sound/core/seq/seq_clientmgr.c	2018-10-30 20:06:59.000000000 +0900
@@ -2136,6 +2136,8 @@ static long snd_seq_ioctl(struct file *f
 	 */
 	size = _IOC_SIZE(handler->cmd);
 	if (handler->cmd & IOC_IN) {
+		if (size > sizeof(buf)) /* make copy_from_user happy */
+			return -EFAULT;
 		if (copy_from_user(&buf, (const void __user *)arg, size))
 			return -EFAULT;
 	}