4.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Shivasharan S <shivasharan.srikanteshwara@xxxxxxxxxxxx> commit 91b3d9f0069c8307d0b3a4c6843b65a439183318 upstream. Signed-off-by: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx> Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@xxxxxxxxxxxx> Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Reviewed-by: Tomas Henzl <thenzl@xxxxxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/scsi/megaraid/megaraid_sas_base.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5650,6 +5650,14 @@ megasas_register_aen(struct megasas_inst prev_aen.word = le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); + if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || + (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { + dev_info(&instance->pdev->dev, + "%s %d out of range class %d send by application\n", + __func__, __LINE__, curr_aen.members.class); + return 0; + } + /* * A class whose enum value is smaller is inclusive of all * higher values. If a PROGRESS (= -1) was previously