| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.4 100/109] iwlwifi: mvm: fix a memory leak in iwl_mvm_mac_ctxt_beacon_changed | Date | Thu, 9 Sep 2021 07:54:57 -0400 |
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From: Zhang Qilong <zhangqilong3@huawei.com>
[ Upstream commit 0f5d44ac6e55551798dd3da0ff847c8df5990822 ]
If beacon_inject_active is true, we will return without freeing beacon. Fid that by freeing it before returning.
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> [reworded the commit message] Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210802172232.d16206ca60fc.I9984a9b442c84814c307cee3213044e24d26f38a@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c index 9c417dd06291..7736621dca65 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c @@ -1043,8 +1043,10 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, return -ENOMEM; #ifdef CONFIG_IWLWIFI_DEBUGFS - if (mvm->beacon_inject_active) + if (mvm->beacon_inject_active) { + dev_kfree_skb(beacon); return -EBUSY; + } #endif ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); -- 2.30.2
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