| Message ID | 20180911181534.18553-1-labbott@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | scsi: ibmvscsis: Ensure partition name is properly NUL terminated | expand |
On Tue, Sep 11, 2018 at 11:15 AM, Laura Abbott <labbott@redhat.com> wrote: > While reviewing another part of the code, Kees noticed that the > strncpy of the partition name might not always be NUL terminated. Switch > to using strlcpy which does this safely. > > Reported-by: Kees Cook <keescook@chromium.org> > Signed-off-by: Laura Abbott <labbott@redhat.com> > --- > I realized looking at this that I probably should have made > this and my previous patch a series given this has context depending on > the other patch. I can resend if the scsi maintainers want. > --- > drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c > index 9305440a00a1..1217bf2a28db 100644 > --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c > +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c > @@ -3477,7 +3477,7 @@ static int ibmvscsis_probe(struct vio_dev *vdev, > snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI%s", vdev->name); > > vscsi->dds.unit_id = vdev->unit_address; > - strncpy(vscsi->dds.partition_name, partition_name, > + strlcpy(vscsi->dds.partition_name, partition_name, Please use strscpy() in favor of strlcpy(). -Kees > sizeof(vscsi->dds.partition_name)); > vscsi->dds.partition_num = partition_number; > > -- > 2.17.1 >
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index 9305440a00a1..1217bf2a28db 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -3477,7 +3477,7 @@ static int ibmvscsis_probe(struct vio_dev *vdev, snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI%s", vdev->name); vscsi->dds.unit_id = vdev->unit_address; - strncpy(vscsi->dds.partition_name, partition_name, + strlcpy(vscsi->dds.partition_name, partition_name, sizeof(vscsi->dds.partition_name)); vscsi->dds.partition_num = partition_number;
While reviewing another part of the code, Kees noticed that the strncpy of the partition name might not always be NUL terminated. Switch to using strlcpy which does this safely. Reported-by: Kees Cook <keescook@chromium.org> Signed-off-by: Laura Abbott <labbott@redhat.com> --- I realized looking at this that I probably should have made this and my previous patch a series given this has context depending on the other patch. I can resend if the scsi maintainers want. --- drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)