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26 lines
871 B
Diff
26 lines
871 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Tue, 11 Jul 2023 13:30:12 +0200
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Subject: [PATCH] wifi: cfg80211: fix receving mesh packets without RFC1042
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header
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Fix ethernet header length field after stripping the mesh header
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Cc: stable@vger.kernel.org
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Link: https://lore.kernel.org/all/CT5GNZSK28AI.2K6M69OXM9RW5@syracuse/
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Fixes: 986e43b19ae9 ("wifi: mac80211: fix receiving A-MSDU frames on mesh interfaces")
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Reported-by: Nicolas Escande <nico.escande@gmail.com>
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/wireless/util.c
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+++ b/net/wireless/util.c
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@@ -580,6 +580,8 @@ int ieee80211_strip_8023_mesh_hdr(struct
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hdrlen += ETH_ALEN + 2;
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else if (!pskb_may_pull(skb, hdrlen))
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return -EINVAL;
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+ else
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+ payload.eth.h_proto = htons(skb->len - hdrlen);
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mesh_addr = skb->data + sizeof(payload.eth) + ETH_ALEN;
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switch (payload.flags & MESH_FLAGS_AE) {
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