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Commit 91b3d9f0 authored by Shivasharan S's avatar Shivasharan S Committed by Martin K. Petersen
Browse files

scsi: megaraid_sas: Check valid aen class range to avoid kernel panic 



Signed-off-by: default avatarKashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: default avatarShivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: stable@vger.kernel.org
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Reviewed-by: default avatarTomas Henzl <thenzl@redhat.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 8823abed

drivers/scsi/megaraid/megaraid_sas_base.c

+8 −0
Original line number Diff line number Diff line
@@ -5651,6 +5651,14 @@ megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 
		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