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-rw-r--r--drivers/nvme/target/configfs.c6
-rw-r--r--drivers/nvme/target/nvmet.h1
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index e5dbd1923b7b..125ef2c65d5f 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -1149,6 +1149,12 @@ static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,
if (!len)
return -EINVAL;
+ if (len > NVMET_MN_MAX_SIZE) {
+ pr_err("Model nubmer size can not exceed %d Bytes\n",
+ NVMET_MN_MAX_SIZE);
+ return -EINVAL;
+ }
+
for (pos = 0; pos < len; pos++) {
if (!nvmet_is_ascii(page[pos]))
return -EINVAL;
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 24e261bf153a..5566ed403576 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -27,6 +27,7 @@
#define NVMET_ERROR_LOG_SLOTS 128
#define NVMET_NO_ERROR_LOC ((u16)-1)
#define NVMET_DEFAULT_CTRL_MODEL "Linux"
+#define NVMET_MN_MAX_SIZE 40
/*
* Supported optional AENs: