FAILED: patch "[PATCH] scsi: megaraid_sas: Check valid aen class range to avoid" failed to apply to 3.18-stable tree

PATCH [email protected] 1 participant 1 message Sep 22, 2017

Subsystems (3)

Stable branch SCSI Megaraid SCSI/SAS drivers

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2017-09-22 10:59 UTC #0 lore raw

The patch below does not apply to the 3.18-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

Quoted 1 line

From 91b3d9f0069c8307d0b3a4c6843b65a439183318 Mon Sep 17 00:00:00 2001

From: Shivasharan S <[email protected]>
Date: Wed, 23 Aug 2017 04:47:01 -0700
Subject: [PATCH] scsi: megaraid_sas: Check valid aen class range to avoid
kernel panic

Signed-off-by Kashyap Desai <[email protected]>

Signed-off-by Shivasharan S <[email protected]>

Cc [email protected]

Reviewed-by Hannes Reinecke <[email protected]>

Reviewed-by Tomas Henzl <[email protected]>

Signed-off-by Martin K. Petersen <[email protected]>

drivers/scsi/megaraid/megaraid_sas_base.c +8 -0

index b8b46540d909..df2332f3e182 100644
@@ -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