From: Colin Ian King Date: Mon, 15 May 2017 14:56:05 +0000 (+0100) Subject: scsi: aacraid: fix leak of data from stack back to userspace X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5cc973f09e21b5a2f746307641879bc9f1da623b;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git scsi: aacraid: fix leak of data from stack back to userspace The fields sense_data_size and sense_data are unitialized garbage from the stack and are being copied back to userspace. Fix this leak of stack information by ensuring they are zero'd. Detected by CoverityScan, CID#1435473 ("Uninitialized scalar variable") Fixes: 423400e64d377 ("scsi: aacraid: Include HBA direct interface") Signed-off-by: Colin Ian King Acked-by: Dave Carroll Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index 106b9332f718..6bb6ed48e31d 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -955,6 +955,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) reply.srb_status = SRB_STATUS_SUCCESS; reply.scsi_status = 0; reply.data_xfer_length = byte_count; + reply.sense_data_size = 0; + memset(reply.sense_data, 0, AAC_SENSE_BUFFERSIZE); } else { reply.srb_status = err->service_response; reply.scsi_status = err->status;