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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-12-14 10:05:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-05 14:42:34 +0300 |
| commit | a68d72d899a2051e5a05f78aed9604fbc1f3ff34 (patch) | |
| tree | d621334d3b313f0e1ee38735ae3eb5a10467b56b /drivers/scsi | |
| parent | 172fc0a7d7abdb94b94544765ae13348862b1abf (diff) | |
| download | linux-a68d72d899a2051e5a05f78aed9604fbc1f3ff34.tar.xz | |
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 bd6d459afce5..08b2e85dcd7d 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -2954,8 +2954,8 @@ 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)); |