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Date: Mon, 29 Jul 2019 21:21:21 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Yang Wei <albin_yang@....com>, "David S. Miller" <davem@...emloft.net> Subject: [PATCH 4.14 190/293] nfc: fix potential illegal memory access From: Yang Wei <albin_yang@....com> [ Upstream commit dd006fc434e107ef90f7de0db9907cbc1c521645 ] The frags_q is not properly initialized, it may result in illegal memory access when conn_info is NULL. The "goto free_exit" should be replaced by "goto exit". Signed-off-by: Yang Wei <albin_yang@....com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- net/nfc/nci/data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/nfc/nci/data.c +++ b/net/nfc/nci/data.c @@ -119,7 +119,7 @@ static int nci_queue_tx_data_frags(struc conn_info = nci_get_conn_info_by_conn_id(ndev, conn_id); if (!conn_info) { rc = -EPROTO; - goto free_exit; + goto exit; } __skb_queue_head_init(&frags_q);
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