[PATCH 15/17] mpi3mr: zero out diagnostic buffer status memory
Chandrakanth Patil <[email protected]>
| Newsgroups | gmane.linux.scsi |
|---|---|
| Message-ID | <[email protected]> |
Memory allocated for the BSG diagnostic buffer status is not zero'd
before it is copied back to user space. Several fields in this
structure are reserved and never written by the driver. Use kzalloc
instead of kmalloc to zero out the allocated memory.
Fixes: 78b506984ebe ("scsi: mpi3mr: Add ioctl support for HDB")
Signed-off-by: Chandrakanth Patil <[email protected]>
---
drivers/scsi/mpi3mr/mpi3mr_app.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index f5b48c95cf05..0cdcb8d236d3 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -1244,7 +1244,7 @@ static long mpi3mr_bsg_query_hdb(struct mpi3mr_ioc *mrioc,
length = (sizeof(*hbd_status) + ((MPI3MR_MAX_NUM_HDB - 1) *
sizeof(*hbd_status_entry)));
- hbd_status = kmalloc(length, GFP_KERNEL);
+ hbd_status = kzalloc(length, GFP_KERNEL);
if (!hbd_status)
return -ENOMEM;
hbd_status_entry = &hbd_status->entry[0];