Merge tag 'input-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / drivers / target / target_core_iblock.c

diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 378c803..1ed9381 100644 (file)
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -494,6 +494,10 @@ iblock_execute_write_same(struct se_cmd *cmd)
                       " backends not supported\n");
                return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
        }
+
+       if (!cmd->t_data_nents)
+               return TCM_INVALID_CDB_FIELD;
+
        sg = &cmd->t_data_sg[0];
 
        if (cmd->t_data_nents > 1 ||