From b5c9ee8296a3760760c7b5d2e305f91412adc795 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Mon, 19 Jun 2023 11:06:31 +0800
Subject: [PATCH] rpmsg: glink: Add check for kstrdup
Git-commit: b5c9ee8296a3760760c7b5d2e305f91412adc795
Patch-mainline: v6.6-rc1
References: git-fixes
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 <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20230619030631.12361-1-jiasheng@iscas.ac.cn
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 2db82f67e689..e10c05ed21bb 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);
--
2.35.3