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Commit | Line | Data |
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721db3cc GKH |
1 | From 91b3d9f0069c8307d0b3a4c6843b65a439183318 Mon Sep 17 00:00:00 2001 |
2 | From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | |
3 | Date: Wed, 23 Aug 2017 04:47:01 -0700 | |
4 | Subject: scsi: megaraid_sas: Check valid aen class range to avoid kernel panic | |
5 | ||
6 | From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | |
7 | ||
8 | commit 91b3d9f0069c8307d0b3a4c6843b65a439183318 upstream. | |
9 | ||
10 | Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> | |
11 | Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | |
12 | Reviewed-by: Hannes Reinecke <hare@suse.com> | |
13 | Reviewed-by: Tomas Henzl <thenzl@redhat.com> | |
14 | Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> | |
15 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
16 | ||
17 | --- | |
18 | drivers/scsi/megaraid/megaraid_sas_base.c | 8 ++++++++ | |
19 | 1 file changed, 8 insertions(+) | |
20 | ||
21 | --- a/drivers/scsi/megaraid/megaraid_sas_base.c | |
22 | +++ b/drivers/scsi/megaraid/megaraid_sas_base.c | |
23 | @@ -5460,6 +5460,14 @@ megasas_register_aen(struct megasas_inst | |
24 | prev_aen.word = | |
25 | le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); | |
26 | ||
27 | + if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || | |
28 | + (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { | |
29 | + dev_info(&instance->pdev->dev, | |
30 | + "%s %d out of range class %d send by application\n", | |
31 | + __func__, __LINE__, curr_aen.members.class); | |
32 | + return 0; | |
33 | + } | |
34 | + | |
35 | /* | |
36 | * A class whose enum value is smaller is inclusive of all | |
37 | * higher values. If a PROGRESS (= -1) was previously |