From: Arik Nemtsov <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== commit 34f05f543f02350e920bddb7660ffdd4697aaf60 upstream. In the already-set and intersect case of a driver-hint, the previous wiphy regdomain was not freed before being reset with a copy of the cfg80211 regdomain. [js: backport to 3.12] Signed-off-by: Arik Nemtsov <[email protected]> Acked-by: Luis R. Rodriguez <[email protected]> Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- net/wireless/reg.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index de06d5d1287f..8eedb1507ccc 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1432,7 +1432,7 @@ static enum reg_request_treatment __regulatory_hint(struct wiphy *wiphy, struct regulatory_request *pending_request) { - const struct ieee80211_regdomain *regd; + const struct ieee80211_regdomain *regd, *tmp; bool intersect = false; enum reg_request_treatment treatment; struct regulatory_request *lr; @@ -1448,7 +1448,9 @@ __regulatory_hint(struct wiphy *wiphy, kfree(pending_request); return PTR_ERR(regd); } + tmp = get_wiphy_regdom(wiphy); rcu_assign_pointer(wiphy->regd, regd); + rcu_free_regdom(tmp); } intersect = true; break; @@ -1468,7 +1470,9 @@ __regulatory_hint(struct wiphy *wiphy, return REG_REQ_IGNORE; } treatment = REG_REQ_ALREADY_SET; + tmp = get_wiphy_regdom(wiphy); rcu_assign_pointer(wiphy->regd, regd); + rcu_free_regdom(tmp); goto new_request; } kfree(pending_request); -- 2.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
