diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-12-14 10:05:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-05 12:34:58 +0100 |
| commit | dc3d27538c4f45ca1bed9a0f907fd96051e26c09 (patch) | |
| tree | 2e9e4559a1938d8d8ffa4ba8c0abd78fb0cae437 | |
| parent | c34a0b5b3bf01062eb5f2a47870c5ab57256bdfc (diff) | |
scsi: lpfc: Terminate string in lpfc_debugfs_nvmeio_trc_write()
[ Upstream commit 9020be114a47bf7ff33e179b3bb0016b91a098e6 ]
The "mybuf" string comes from the user, so we need to ensure that it is NUL
terminated.
Link: https://lore.kernel.org/r/20211214070527.GA27934@kili
Fixes: bd2cdd5e400f ("scsi: lpfc: NVME Initiator: Add debugfs support")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_debugfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 2c70e311943a..0a908d1cc494 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -2267,8 +2267,8 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, char mybuf[64]; char *pbuf; - if (nbytes > 64) - nbytes = 64; + if (nbytes > 63) + nbytes = 63; memset(mybuf, 0, sizeof(mybuf)); |