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authorFelix Fietkau <nbd@nbd.name>2023-07-11 13:50:52 +0200
committerJakub Kicinski <kuba@kernel.org>2023-07-12 18:03:40 -0700
commitfec3ebb5ed299ac3a998f011c380f2ded47f4866 (patch)
treef432a0eabddb8e826f8455f58ed94639c587b1b9
parent4f4626cd049576af1276c7568d5b44eb3f7bb1b1 (diff)
wifi: cfg80211: fix receiving mesh packets without RFC1042 header
Fix ethernet header length field after stripping the mesh header Cc: stable@vger.kernel.org Link: https://lore.kernel.org/all/CT5GNZSK28AI.2K6M69OXM9RW5@syracuse/ Fixes: 986e43b19ae9 ("wifi: mac80211: fix receiving A-MSDU frames on mesh interfaces") Reported-and-tested-by: Nicolas Escande <nico.escande@gmail.com> Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20230711115052.68430-1-nbd@nbd.name Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--net/wireless/util.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 89c9ad6c886e..1783ab9d57a3 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -580,6 +580,8 @@ int ieee80211_strip_8023_mesh_hdr(struct sk_buff *skb)
hdrlen += ETH_ALEN + 2;
else if (!pskb_may_pull(skb, hdrlen))
return -EINVAL;
+ else
+ payload.eth.h_proto = htons(skb->len - hdrlen);
mesh_addr = skb->data + sizeof(payload.eth) + ETH_ALEN;
switch (payload.flags & MESH_FLAGS_AE) {