This is a note to let you know that I've just added the patch titled rpmsg: glink: Avoid infinite loop on intent for missing channel to the 5.15-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: rpmsg-glink-avoid-infinite-loop-on-intent-for-missin.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 4588601b9e51e6abb8f98c7f27013e15da0d943a Author: Bjorn Andersson <quic_bjorande@xxxxxxxxxxx> Date: Tue Feb 14 15:42:31 2023 -0800 rpmsg: glink: Avoid infinite loop on intent for missing channel [ Upstream commit 3e74ec2f39362bffbd42854acbb67c7f4cb808f9 ] In the event that an intent advertisement arrives on an unknown channel the fifo is not advanced, resulting in the same message being handled over and over. Fixes: dacbb35e930f ("rpmsg: glink: Receive and store the remote intent buffers") Signed-off-by: Bjorn Andersson <quic_bjorande@xxxxxxxxxxx> Reviewed-by: Chris Lew <quic_clew@xxxxxxxxxxx> Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230214234231.2069751-1-quic_bjorande@xxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index 13c31372337a2..fd4c2f0fa4b1f 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -929,6 +929,7 @@ static void qcom_glink_handle_intent(struct qcom_glink *glink, spin_unlock_irqrestore(&glink->idr_lock, flags); if (!channel) { dev_err(glink->dev, "intents for non-existing channel\n"); + qcom_glink_rx_advance(glink, ALIGN(msglen, 8)); return; }