From: "John W. Linville" <linville@tuxdriver.com>
To: stable@kernel.org
Cc: linux-wireless@vger.kernel.org, warmcat <andy@warmcat.com>,
"John W. Linville" <linville@tuxdriver.com>
Subject: [PATCH] Add get_unaligned to ieee80211_get_radiotap_len
Date: Fri, 26 Oct 2007 17:04:24 -0400 [thread overview]
Message-ID: <11934326793639-git-send-email-linville@tuxdriver.com> (raw)
From: warmcat <andy@warmcat.com>
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>
---
net/mac80211/ieee80211.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index ff2172f..9b9d716 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -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
--
1.5.2.4
next reply other threads:[~2007-10-26 21:06 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-26 21:04 John W. Linville [this message]
2007-10-26 21:04 ` [PATCH] Improve sanity checks on injected packets John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: filter locally-originated multicast frames John W. Linville
2007-10-26 21:04 ` [PATCH] libertas: fix endianness breakage John W. Linville
2007-10-26 21:04 ` [PATCH] libertas: more " John W. Linville
2007-10-26 21:04 ` [PATCH] ieee80211: fix TKIP QoS bug John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: reorder association debug output John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: store channel info in sta_bss_list John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: store SSID " John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: honor IW_SCAN_THIS_ESSID in siwscan ioctl John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: only honor IW_SCAN_THIS_ESSID in STA, IBSS, and AP modes John W. Linville
2007-10-26 21:04 ` [PATCH] mac80211: make ieee802_11_parse_elems return void John W. Linville
2007-10-26 21:04 ` [PATCH] zd1201: avoid null ptr access of skb->dev John W. Linville
2007-10-26 21:04 ` [PATCH] ipw2100: send WEXT scan events John W. Linville
2007-10-26 21:04 ` [PATCH] rtl8187: Fix more frag bit checking, rts duration calc John W. Linville
2007-10-26 21:04 ` [PATCH] zd1211rw, fix oops when ejecting install media John W. Linville
2007-10-28 7:29 ` [PATCH] mac80211: honor IW_SCAN_THIS_ESSID in siwscan ioctl Michael Wu
2007-10-28 7:31 ` Michael Wu
2007-10-26 21:10 ` [PATCH] mac80211: reorder association debug output Johannes Berg
2007-10-26 21:23 ` John W. Linville
2007-10-26 21:31 ` [stable] " Greg KH
2007-10-26 21:44 ` Johannes Berg
2007-10-27 12:50 ` John W. Linville
2007-10-27 12:58 ` Johannes Berg
2007-10-28 7:57 ` Michael Wu
-- strict thread matches above, loose matches on Subject: below --
2007-10-10 1:30 [PATCH] Add get_unaligned to ieee80211_get_radiotap_len John W. Linville
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