This is a note to let you know that I've just added the patch titled nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: nfc-nci-fix-handling-of-zero-length-payload-packets-.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 12e234f7d79d2b7cf258b17b68eef7f9ee32ebe8 Author: Ryosuke Yasuoka <ryasuoka@xxxxxxxxxx> Date: Wed May 22 00:34:42 2024 +0900 nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() [ Upstream commit 6671e352497ca4bb07a96c48e03907065ff77d8a ] When nci_rx_work() receives a zero-length payload packet, it should not discard the packet and exit the loop. Instead, it should continue processing subsequent packets. Fixes: d24b03535e5e ("nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet") Signed-off-by: Ryosuke Yasuoka <ryasuoka@xxxxxxxxxx> Reviewed-by: Simon Horman <horms@xxxxxxxxxx> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Link: https://lore.kernel.org/r/20240521153444.535399-1-ryasuoka@xxxxxxxxxx Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 0e6bca80265ae..c29d7aee63bd5 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -1526,8 +1526,7 @@ static void nci_rx_work(struct work_struct *work) if (!nci_valid_size(skb)) { kfree_skb(skb); - kcov_remote_stop(); - break; + continue; } /* Process frame */