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| author | Laura Abbott <labbott@redhat.com> | 2018-09-11 22:22:25 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-09-17 09:49:55 +0300 |
| commit | d792d4c4fc866ae224b0b0ca2aabd87d23b4d6cc (patch) | |
| tree | 398f007d093664235e35fea2cc666c454c8e9b1d | |
| parent | cbe3fd39d223f14b1c60c80fe9347a3dd08c2edb (diff) | |
| download | linux-d792d4c4fc866ae224b0b0ca2aabd87d23b4d6cc.tar.xz | |
scsi: ibmvscsis: Fix a stringop-overflow warning
There's currently a warning about string overflow with strncat:
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c: In function 'ibmvscsis_probe':
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:3479:2: error: 'strncat' specified
bound 64 equals destination size [-Werror=stringop-overflow=]
strncat(vscsi->eye, vdev->name, MAX_EYE);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Switch to a single snprintf instead of a strcpy + strcat to handle this
cleanly.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index fac377320158..b3a029ad07cd 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -3474,8 +3474,7 @@ static int ibmvscsis_probe(struct vio_dev *vdev, vscsi->dds.window[LOCAL].liobn, vscsi->dds.window[REMOTE].liobn); - strcpy(vscsi->eye, "VSCSI "); - strncat(vscsi->eye, vdev->name, MAX_EYE); + snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI %s", vdev->name); vscsi->dds.unit_id = vdev->unit_address; strncpy(vscsi->dds.partition_name, partition_name, |