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74d00a8c38
* properly format/comment all patches * merge debloat patches * merge Kconfig patches * merge swconfig patches * merge hotplug patches * drop 200-fix_localversion.patch - upstream * drop 222-arm_zimage_none.patch - unused * drop 252-mv_cesa_depends.patch - no longer required * drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused * drop 661-fq_codel_keep_dropped_stats.patch - outdated * drop 702-phy_add_aneg_done_function.patch - upstream * drop 840-rtc7301.patch - unused * drop 841-rtc_pt7c4338.patch - upstream * drop 921-use_preinit_as_init.patch - unused * drop spio-gpio-old and gpio-mmc - unused Signed-off-by: John Crispin <john@phrozen.org>
26 lines
830 B
Diff
26 lines
830 B
Diff
From: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
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Date: Mon, 20 Apr 2015 21:07:48 +0200
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Subject: [PATCH] pppoe: Lacks DST MAC address check
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A pppoe session is identified by its session ID and MAC address.
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Currently pppoe does not check if the received pkg has the correct
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MAC address. This is a problem when the eth I/F is in promisc mode
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as then any DST MAC address is accepted.
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Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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--- a/drivers/net/ppp/pppoe.c
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+++ b/drivers/net/ppp/pppoe.c
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@@ -379,6 +379,9 @@ static int pppoe_rcv_core(struct sock *s
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* can't change.
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*/
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+ if (skb->pkt_type == PACKET_OTHERHOST)
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+ goto abort_kfree;
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+
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if (sk->sk_state & PPPOX_BOUND) {
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ppp_input(&po->chan, skb);
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} else if (sk->sk_state & PPPOX_RELAY) {
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