166741240a
Upstream backport to fix issues arising from devices with duplicate MAC addresses Signed-off-by: Felix Fietkau <nbd@nbd.name>
26 lines
838 B
Diff
26 lines
838 B
Diff
From: Johannes Berg <johannes.berg@intel.com>
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Date: Thu, 4 Jan 2018 15:51:53 +0100
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Subject: [PATCH] mac80211: mesh: drop frames appearing to be from us
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If there are multiple mesh stations with the same MAC address,
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they will both get confused and start throwing warnings.
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Obviously in this case nothing can actually work anyway, so just
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drop frames that look like they're from ourselves early on.
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Reported-by: Gui Iribarren <gui@altermundi.net>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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--- a/net/mac80211/rx.c
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+++ b/net/mac80211/rx.c
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@@ -3632,6 +3632,8 @@ static bool ieee80211_accept_frame(struc
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}
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return true;
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case NL80211_IFTYPE_MESH_POINT:
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+ if (ether_addr_equal(sdata->vif.addr, hdr->addr2))
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+ return false;
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if (multicast)
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return true;
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return ether_addr_equal(sdata->vif.addr, hdr->addr1);
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