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regulatory: add NUL to request alpha2 

[ Upstream commit 657308f73e ]

Similar to the ancient commit a5fe8e7695 ("regulatory: add NUL
to alpha2"), add another byte to alpha2 in the request struct so
that when we use nla_put_string(), we don't overrun anything.

Fixes: 73d54c9e74 ("cfg80211: add regulatory netlink multicast group")
Reported-by: Kees Cook <keescook@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Johannes Berg 2018-02-22 20:55:28 +01:00 committed by Greg Kroah-Hartman
parent c254a86a33
commit 0b9f26e97f
1 changed files with 1 additions and 1 deletions
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2
include/net/regulatory.h
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@ -78,7 +78,7 @@ struct regulatory_request {
int wiphy_idx;
enum nl80211_reg_initiator initiator;
enum nl80211_user_reg_hint_type user_reg_hint_type;
char alpha2[2];
char alpha2[3];
enum nl80211_dfs_regions dfs_region;
bool intersect;
bool processed;