Merge branch 'pm-qos'

[firefly-linux-kernel-4.4.55.git] / drivers / target / target_core_device.c

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index cf2c66f3c11690c81ca23e9fd2ce286e76b56e62..9fc9a6006ca082076a6d235dfad676e1e1a11ea9 100644 (file)
--- 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;