From: Vasiliy Kulikov <segooon@xxxxxxxxx> memset arg64 to zero in the passthrough ioctls to avoid leaking contents of kernel stack memory to userland via uninitialized padding fields inserted by the compiler for alignment reasons. Signed-off-by: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx> --- drivers/scsi/hpsa.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 5828bcb..959eeb2 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -2310,6 +2310,7 @@ static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg) int err; u32 cp; + memset(&arg64, 0, sizeof(arg64)); err = 0; err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, sizeof(arg64.LUN_info)); @@ -2346,6 +2347,7 @@ static int hpsa_ioctl32_big_passthru(struct scsi_device *dev, int err; u32 cp; + memset(&arg64, 0, sizeof(arg64)); err = 0; err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, sizeof(arg64.LUN_info)); -- 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
