From b5c9ee8296a3760760c7b5d2e305f91412adc795 Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Mon, 19 Jun 2023 11:06:31 +0800 Subject: [PATCH] rpmsg: glink: Add check for kstrdup Add check for the return value of kstrdup() and return the error if it fails in order to avoid NULL pointer dereference. Fixes: b4f8e52b89f6 ("rpmsg: Introduce Qualcomm RPM glink driver") Signed-off-by: Jiasheng Jiang Link: https://lore.kernel.org/r/20230619030631.12361-1-jiasheng@iscas.ac.cn Signed-off-by: Bjorn Andersson --- drivers/rpmsg/qcom_glink_native.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index 2db82f6..e10c05e 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -227,6 +227,10 @@ static struct glink_channel *qcom_glink_alloc_channel(struct qcom_glink *glink, channel->glink = glink; channel->name = kstrdup(name, GFP_KERNEL); + if (!channel->name) { + kfree(channel); + return ERR_PTR(-ENOMEM); + } init_completion(&channel->open_req); init_completion(&channel->open_ack); -- 2.7.4