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rpmsg: glink: Add check for kstrdup
author
Jiasheng Jiang
<jiasheng@iscas.ac.cn>
Mon, 19 Jun 2023 03:06:31 +0000
(11:06 +0800)
committer
Bjorn Andersson
<andersson@kernel.org>
Sat, 15 Jul 2023 21:59:30 +0000
(14:59 -0700)
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>
drivers/rpmsg/qcom_glink_native.c
patch
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diff --git
a/drivers/rpmsg/qcom_glink_native.c
b/drivers/rpmsg/qcom_glink_native.c
index
2db82f6
..
e10c05e
100644
(file)
--- 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);