On Fri, Jun 08, 2018 at 06:26:33PM +0800, John Garry wrote: > Currently smatch warns of possible Spectre-V1 issue in ahci_led_store(): > drivers/ata/libahci.c:1150 ahci_led_store() warn: potential spectre issue 'pp->em_priv' (local cap) > > Userspace controls @pmp from following callchain: > em_message->store() > ->ata_scsi_em_message_store() > -->ap->ops->em_store() > --->ahci_led_store() > > After the mask+shift @pmp is effectively an 8b value, which is used to > index into an array of length 8, so sanitize the array index. > > Signed-off-by: John Garry <john.garry@xxxxxxxxxx> Applied to libata/for-4.18-fixes. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
