On 06/30/2017 10:30 AM, Shivasharan S wrote: > An application sending out of range AEN class code for > registration, will result in kernel panic in MR driver. > > Signed-off-by: Kashyap Desai <[email protected]> > Signed-off-by: Shivasharan S <[email protected]> > Cc: [email protected] > --- > drivers/scsi/megaraid/megaraid_sas_base.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c > b/drivers/scsi/megaraid/megaraid_sas_base.c > index 3c50a7b..e490272 100644 > --- 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_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 > Reviewed-by: Hannes Reinecke <[email protected]>
Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking [email protected] +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
