4.19-stable review patch. If anyone has any objections, please let me know.
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From: Benjamin Berg benjamin.berg@intel.com
[ Upstream commit 32af9a9e1069e55bc02741fb00ac9d0ca1a2eaef ]
This is a more of a cosmetic fix. The branch will only be taken if proberesp_ies is set, which implies that beacon_ies is not set unless we are connected to an AP that just did a channel switch. And, in that case we should have found the BSS in the internal storage to begin with.
Signed-off-by: Benjamin Berg benjamin.berg@intel.com Reviewed-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Miri Korenblit miriam.rachel.korenblit@intel.com Link: https://msgid.link/20231220133549.b898e22dadff.Id8c4c10aedd176ef2e18a4cad747... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/wireless/scan.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index d871349036a5..7f1a4ba975dd 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -1018,8 +1018,12 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev, list_add(&new->hidden_list, &hidden->hidden_list); hidden->refcount++; + + ies = (void *)rcu_dereference(new->pub.beacon_ies); rcu_assign_pointer(new->pub.beacon_ies, hidden->pub.beacon_ies); + if (ies) + kfree_rcu(ies, rcu_head); } } else { /*