summaryrefslogtreecommitdiff
path: root/net/wireless/radiotap.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2013-10-17 16:05:50 -0400
committerDavid S. Miller <davem@davemloft.net>2013-10-17 16:05:50 -0400
commitdf709a18cae475de38ddaff63584692d50267b92 (patch)
tree94db1a56c2427baaf1d2d92364718f69f77d95c7 /net/wireless/radiotap.c
parentce97fef4235378108ed3bd96e1b3eab8fd0a1fbd (diff)
parent39c253ed7817bf477189a132b114303c9aa2c2d2 (diff)
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says: ==================== Please pull this batch of fixes intended for the 3.12 stream! For the mac80211 bits, Johannes says: "Jouni fixes a remain-on-channel vs. scan bug, and Felix fixes client TX probing on VLANs." And also: "This time I have two fixes from Emmanuel for RF-kill issues, and fixed two issues reported by Evan Huus and Thomas Lindroth respectively." On top of those... Avinash Patil adds a couple of mwifiex fixes to properly inform cfg80211 about some different types of disconnects, avoiding WARNINGs. Mark Cave-Ayland corrects a pointer arithmetic problem in rtlwifi, avoiding incorrect automatic gain calculations. Solomon Peachy sends a cw1200 fix for locking around calls to cw1200_irq_handler, addressing "lost interrupt" problems. Please let me know if there are problems! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/wireless/radiotap.c')
-rw-r--r--net/wireless/radiotap.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/wireless/radiotap.c b/net/wireless/radiotap.c
index 7d604c06c3dc..a271c27fac77 100644
--- a/net/wireless/radiotap.c
+++ b/net/wireless/radiotap.c
@@ -97,6 +97,10 @@ int ieee80211_radiotap_iterator_init(
struct ieee80211_radiotap_header *radiotap_header,
int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns)
{
+ /* check the radiotap header can actually be present */
+ if (max_length < sizeof(struct ieee80211_radiotap_header))
+ return -EINVAL;
+
/* Linux only supports version 0 radiotap format */
if (radiotap_header->it_version)
return -EINVAL;
@@ -131,7 +135,8 @@ int ieee80211_radiotap_iterator_init(
*/
if ((unsigned long)iterator->_arg -
- (unsigned long)iterator->_rtheader >
+ (unsigned long)iterator->_rtheader +
+ sizeof(uint32_t) >
(unsigned long)iterator->_max_length)
return -EINVAL;
}