[PATCH 5.15.y 1/4] remoteproc: qcom: replace kstrdup with kstrndup

[Sasha Levin <sashal@kernel.org>]

From: Mukesh Ojha <quic_mojha@quicinc.com>

[ Upstream commit 9d5b9ad97f83b2390a6006eeb5ae5e48ec4298ce ]

Since, there is no guarantee that region.name will be 0-terminated
from the firmware side, replace kstrdup with kstrndup.

Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/1676383691-29738-1-git-send-email-quic_mojha@quicinc.com
Stable-dep-of: ecf9fc18e62c ("remoteproc: qcom: Fix leak when custom dump_segments addition fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/qcom_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index 4b91e3c9eafa1e..5d49d1e76f6a89 100644
--- a/drivers/remoteproc/qcom_common.c
+++ b/drivers/remoteproc/qcom_common.c
@@ -124,7 +124,7 @@ static int qcom_add_minidump_segments(struct rproc *rproc, struct minidump_subsy
 	for (i = 0; i < seg_cnt; i++) {
 		memcpy_fromio(&region, ptr + i, sizeof(region));
 		if (region.valid == MD_REGION_VALID) {
-			name = kstrdup(region.name, GFP_KERNEL);
+			name = kstrndup(region.name, MAX_REGION_NAME_LENGTH - 1, GFP_KERNEL);
 			if (!name) {
 				iounmap(ptr);
 				return -ENOMEM;
-- 
2.53.0