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Add get_unaligned to ieee80211_get_radiotap_len

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patch dfe6e81dea in mainline.

ieee80211_get_radiotap_len() tries to dereference radiotap length without
taking care that it is completely unaligned and get_unaligned()
is required.

Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andy Green
2007-10-09 22:46:33 -04:00
committed by Greg Kroah-Hartman
parent 1e3bfd1413
commit d876cd16fb
1 changed files with 1 additions and 1 deletions
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net/mac80211/ieee80211.c
+1 -1
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@@ -350,7 +350,7 @@ static int ieee80211_get_radiotap_len(struct sk_buff *skb)
struct ieee80211_radiotap_header *hdr =
(struct ieee80211_radiotap_header *) skb->data;
return le16_to_cpu(hdr->it_len);
return le16_to_cpu(get_unaligned(&hdr->it_len));
}
#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP