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hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/drivers/net/wimax/i2400m/rx.c
..
..
@@ -1253,15 +1253,14 @@
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 	skb_len = skb->len;
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 	d_fnstart(4, dev, "(i2400m %p skb %p [size %u])\n",
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 		  i2400m, skb, skb_len);
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-	result = -EIO;
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 	msg_hdr = (void *) skb->data;
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 	result = i2400m_rx_msg_hdr_check(i2400m, msg_hdr, skb_len);
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 	if (result < 0)
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 		goto error_msg_hdr_check;
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 	result = -EIO;
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 	num_pls = le16_to_cpu(msg_hdr->num_pls);
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-	pl_itr = sizeof(*msg_hdr) +	/* Check payload descriptor(s) */
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-		num_pls * sizeof(msg_hdr->pld[0]);
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+	/* Check payload descriptor(s) */
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+	pl_itr = struct_size(msg_hdr, pld, num_pls);
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 	pl_itr = ALIGN(pl_itr, I2400M_PL_ALIGN);
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 	if (pl_itr > skb_len) {	/* got all the payload descriptors? */
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 		dev_err(dev, "RX: HW BUG? message too short (%u bytes) for "