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scsi: aacraid: Don't copy uninitialized stack memory to userspace 

Both aac_send_raw_srb() and aac_get_hba_info() may copy stack allocated
structs to userspace without initializing all members of these
structs. Clear out this memory to prevent information leaks.

Fixes: 423400e64d ("scsi: aacraid: Include HBA direct interface")
Fixes: c799d519bf ("scsi: aacraid: Retrieve HBA host information ioctl")
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
hifive-unleashed-5.1
Seth Forshee 2017-06-23 09:04:22 -05:00 committed by Martin K. Petersen
parent 1d32a62c74
commit 342ffc2669
1 changed files with 2 additions and 0 deletions
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2
drivers/scsi/aacraid/commctrl.c
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@ -949,6 +949,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
&((struct aac_native_hba *)srbfib->hw_fib_va)->resp.err;
struct aac_srb_reply reply;
memset(&reply, 0, sizeof(reply));
reply.status = ST_OK;
if (srbfib->flags & FIB_CONTEXT_FLAG_FASTRESP) {
/* fast response */
@ -1020,6 +1021,7 @@ static int aac_get_hba_info(struct aac_dev *dev, void __user *arg)
{
struct aac_hba_info hbainfo;
memset(&hbainfo, 0, sizeof(hbainfo));
hbainfo.adapter_number = (u8) dev->id;
hbainfo.system_io_bus_number = dev->pdev->bus->number;
hbainfo.device_number = (dev->pdev->devfn >> 3);