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authorIlan Peer <ilan.peer@intel.com>2018-12-15 11:03:25 +0200
committerJohannes Berg <johannes.berg@intel.com>2018-12-19 09:41:10 +0100
commitd359bbce0601c6a19203a4b813a7e3910fcba282 (patch)
treef2fd4c1eb80b2164e3d8b5b976fd49032009b4b7 /net/mac80211
parent93bc8ac49e82a329160604556b805b7fa614ff9e (diff)
downloadlinux-d359bbce0601c6a19203a4b813a7e3910fcba282.tar.bz2
mac80211: Properly access radiotap vendor data
The radiotap vendor data might be placed after some other radiotap elements, and thus when accessing it, need to access the correct offset in the skb data. Fix the code accordingly. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/rx.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c90904ce6e99..b33d37186576 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -762,8 +762,12 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
if (status->flag & RX_FLAG_RADIOTAP_HE_MU)
rtap_space += sizeof(struct ieee80211_radiotap_he_mu);
+ if (status->flag & RX_FLAG_RADIOTAP_LSIG)
+ rtap_space += sizeof(struct ieee80211_radiotap_lsig);
+
if (unlikely(status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA)) {
- struct ieee80211_vendor_radiotap *rtap = (void *)origskb->data;
+ struct ieee80211_vendor_radiotap *rtap =
+ (void *)(origskb->data + rtap_space);
rtap_space += sizeof(*rtap) + rtap->len + rtap->pad;
}