summaryrefslogtreecommitdiff
path: root/net/wireless/reg.h
diff options
context:
space:
mode:
authorJohannes Berg <johannes.berg@intel.com>2012-11-29 04:25:20 +0400
committerJohannes Berg <johannes.berg@intel.com>2012-11-30 16:42:20 +0400
commit9caf03640279e64d0ba36539b42daa1b43a49486 (patch)
treecb094a4a577f61421d1b402e16f0e68f151d5726 /net/wireless/reg.h
parentb9a9ada14aab17f08c1d9735601f1097cdcfc6de (diff)
downloadlinux-9caf03640279e64d0ba36539b42daa1b43a49486.tar.xz
cfg80211: fix BSS struct IE access races
When a BSS struct is updated, the IEs are currently overwritten or freed. This can lead to races if some other CPU is accessing the BSS struct and using the IEs concurrently. Fix this by always allocating the IEs in a new struct that holds the data and length and protecting access to this new struct with RCU. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/reg.h')
-rw-r--r--net/wireless/reg.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index f023c8a31c60..4c0a32ffd530 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -81,7 +81,7 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy,
*/
void regulatory_hint_11d(struct wiphy *wiphy,
enum ieee80211_band band,
- u8 *country_ie,
+ const u8 *country_ie,
u8 country_ie_len);
/**