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 12:37:44 +0100 |
| commit | cc926b8f4d39aed45afecacd50302fd5534a97b2 (patch) | |
| tree | 4638cfdf48c5d060d2a7fbefe2b45e712a3000f1 /drivers/scsi | |
| parent | 44937652afdbb6fd72512344fbd2e83f209122d5 (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>
Diffstat (limited to 'drivers/scsi')
| -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 3c9248d2435e..e15bb3dfe995 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -2757,8 +2757,8 @@ 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)); |