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36 lines
1.4 KiB
Diff
36 lines
1.4 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
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Date: Wed, 18 Mar 2020 18:30:46 -0600
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Subject: [PATCH] wireguard: receive: remove dead code from default packet type
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case
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commit 2b8765c52db24c0fbcc81bac9b5e8390f2c7d3c8 upstream.
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The situation in which we wind up hitting the default case here
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indicates a major bug in earlier parsing code. It is not a usual thing
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that should ever happen, which means a "friendly" message for it doesn't
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make sense. Rather, replace this with a WARN_ON, just like we do earlier
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in the file for a similar situation, so that somebody sends us a bug
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report and we can fix it.
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Reported-by: Fabian Freyer <fabianfreyer@radicallyopensecurity.com>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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drivers/net/wireguard/receive.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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--- a/drivers/net/wireguard/receive.c
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+++ b/drivers/net/wireguard/receive.c
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@@ -587,8 +587,7 @@ void wg_packet_receive(struct wg_device
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wg_packet_consume_data(wg, skb);
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break;
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default:
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- net_dbg_skb_ratelimited("%s: Invalid packet from %pISpfsc\n",
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- wg->dev->name, skb);
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+ WARN(1, "Non-exhaustive parsing of packet header lead to unknown packet type!\n");
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goto err;
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}
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return;
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