diff options
| author | Eliad Peller <eliad@wizery.com> | 2014-06-11 10:23:35 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-08-15 13:51:40 +0200 |
| commit | a5fe8e7695dc3f547e955ad2b662e3e72969e506 (patch) | |
| tree | 77d69bf50907fb36473a6f3c341dc06802e27a66 /include/net/regulatory.h | |
| parent | c9d26423e56ce1ab4d786f92aebecf859d419293 (diff) | |
| download | lwn-a5fe8e7695dc3f547e955ad2b662e3e72969e506.tar.gz lwn-a5fe8e7695dc3f547e955ad2b662e3e72969e506.zip | |
regulatory: add NUL to alpha2
alpha2 is defined as 2-chars array, but is used in multiple
places as string (e.g. with nla_put_string calls), which
might leak kernel data.
Solve it by simply adding an extra char for the NULL
terminator, making such operations safe.
Cc: stable@vger.kernel.org
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/regulatory.h')
| -rw-r--r-- | include/net/regulatory.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/regulatory.h b/include/net/regulatory.h index 259992444e80..dad7ab20a8cb 100644 --- a/include/net/regulatory.h +++ b/include/net/regulatory.h @@ -167,7 +167,7 @@ struct ieee80211_reg_rule { struct ieee80211_regdomain { struct rcu_head rcu_head; u32 n_reg_rules; - char alpha2[2]; + char alpha2[3]; enum nl80211_dfs_regions dfs_region; struct ieee80211_reg_rule reg_rules[]; }; |