1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index cf2c66f3c116..9fc9a6006ca0 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -669,6 +669,13 @@ int target_report_luns(struct se_cmd *se_cmd)
         unsigned char *buf;
         u32 lun_count = 0, offset = 8, i;
 
+        if (se_cmd->data_length < 16) {
+                pr_warn("REPORT LUNS allocation length %u too small\n",
+                        se_cmd->data_length);
+                se_cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+                return -EINVAL;
+        }
+
         buf = transport_kmap_data_sg(se_cmd);
         if (!buf)
                 return -ENOMEM;