From: Stephen Cameron <stephenmcameron@xxxxxxxxx> In the code that translates logical drive LBAs to physical drive LBAs if we overflow the raid map disk data array we will get the wrong answers. We do not expect that to happen, but best to be on the safe side and guard against it anyway. Reviewed-by: Scott Teel <scott.teel@xxxxxxxx> Signed-off-by: Don Brace <don.brace@xxxxxxxx> --- drivers/scsi/hpsa.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index afd192d..03fae8a 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -3921,6 +3921,9 @@ static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, return IO_ACCEL_INELIGIBLE; } + if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES)) + return IO_ACCEL_INELIGIBLE; + c->phys_disk = dev->phys_disk[map_index]; disk_handle = dd[map_index].ioaccel_handle; -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
