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Commit a5fe8e76 authored by Eliad Peller's avatar Eliad Peller Committed by Johannes Berg

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.

Signed-off-by: default avatarEliad Peller <>
Signed-off-by: default avatarJohannes Berg <>
parent c9d26423
......@@ -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[];
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